1 /*
2  * Copyright (c) 2019, 2020 Tracey Emery <tracey@traceyemery.net>
3  * Copyright (c) 2018, 2019 Stefan Sperling <stsp@openbsd.org>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #include <sys/queue.h>
19 #include <sys/stat.h>
20 #include <sys/types.h>
21 
22 #include <ctype.h>
23 #include <dirent.h>
24 #include <err.h>
25 #include <errno.h>
26 #include <regex.h>
27 #include <stdarg.h>
28 #include <stdint.h>
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
32 #include <unistd.h>
33 
34 #include <got_object.h>
35 #include <got_reference.h>
36 #include <got_repository.h>
37 #include <got_path.h>
38 #include <got_cancel.h>
39 #include <got_worktree.h>
40 #include <got_diff.h>
41 #include <got_commit_graph.h>
42 #include <got_blame.h>
43 #include <got_privsep.h>
44 #include <got_opentemp.h>
45 
46 #include <kcgi.h>
47 #include <kcgihtml.h>
48 
49 #include "gotweb.h"
50 
51 #ifndef nitems
52 #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
53 #endif
54 
55 struct gw_trans {
56 	TAILQ_HEAD(headers, gw_header)	 gw_headers;
57 	TAILQ_HEAD(dirs, gw_dir)	 gw_dirs;
58 	struct got_repository	*repo;
59 	struct gw_dir		*gw_dir;
60 	struct gotweb_conf	*gw_conf;
61 	struct ktemplate	*gw_tmpl;
62 	struct khtmlreq		*gw_html_req;
63 	struct kreq		*gw_req;
64 	const struct got_error	*error;
65 	const char		*repo_name;
66 	char			*repo_path;
67 	char			*commit;
68 	const char		*repo_file;
69 	char			*repo_folder;
70 	const char		*headref;
71 	unsigned int		 action;
72 	unsigned int		 page;
73 	unsigned int		 repos_total;
74 	enum kmime		 mime;
75 };
76 
77 struct gw_header {
78 	TAILQ_ENTRY(gw_header)		 entry;
79 	struct got_reflist_head		 refs;
80 	char				*path;
81 
82 	char			*refs_str;
83 	char			*commit_id; /* id_str1 */
84 	char			*parent_id; /* id_str2 */
85 	char			*tree_id;
86 	char			*author;
87 	char			*committer;
88 	char			*commit_msg;
89 	time_t			 committer_time;
90 };
91 
92 struct gw_dir {
93 	TAILQ_ENTRY(gw_dir)	 entry;
94 	char			*name;
95 	char			*owner;
96 	char			*description;
97 	char			*url;
98 	char			*age;
99 	char			*path;
100 };
101 
102 enum gw_key {
103 	KEY_ACTION,
104 	KEY_COMMIT_ID,
105 	KEY_FILE,
106 	KEY_FOLDER,
107 	KEY_HEADREF,
108 	KEY_PAGE,
109 	KEY_PATH,
110 	KEY__ZMAX
111 };
112 
113 enum gw_tmpl {
114 	TEMPL_CONTENT,
115 	TEMPL_HEAD,
116 	TEMPL_HEADER,
117 	TEMPL_SEARCH,
118 	TEMPL_SITEPATH,
119 	TEMPL_SITEOWNER,
120 	TEMPL_TITLE,
121 	TEMPL__MAX
122 };
123 
124 enum gw_ref_tm {
125 	TM_DIFF,
126 	TM_LONG,
127 };
128 
129 enum gw_tags {
130 	TAGBRIEF,
131 	TAGFULL,
132 };
133 
134 static const char *const gw_templs[TEMPL__MAX] = {
135 	"content",
136 	"head",
137 	"header",
138 	"search",
139 	"sitepath",
140 	"siteowner",
141 	"title",
142 };
143 
144 static const struct kvalid gw_keys[KEY__ZMAX] = {
145 	{ kvalid_stringne,	"action" },
146 	{ kvalid_stringne,	"commit" },
147 	{ kvalid_stringne,	"file" },
148 	{ kvalid_stringne,	"folder" },
149 	{ kvalid_stringne,	"headref" },
150 	{ kvalid_int,		"page" },
151 	{ kvalid_stringne,	"path" },
152 };
153 
154 static struct gw_header		*gw_init_header(void);
155 
156 static void			 gw_free_header(struct gw_header *);
157 
158 static int			 gw_template(size_t, void *);
159 
160 static const struct got_error	*gw_error(struct gw_trans *);
161 static const struct got_error	*gw_init_gw_dir(struct gw_dir **, const char *);
162 static const struct got_error	*gw_get_repo_description(char **,
163 				    struct gw_trans *, char *);
164 static const struct got_error	*gw_get_repo_owner(char **, struct gw_trans *,
165 				    char *);
166 static const struct got_error	*gw_get_time_str(char **, time_t, int);
167 static const struct got_error	*gw_get_repo_age(char **, struct gw_trans *,
168 				    char *, const char *, int);
169 static const struct got_error	*gw_output_file_blame(struct gw_trans *);
170 static const struct got_error	*gw_output_blob_buf(struct gw_trans *);
171 static const struct got_error	*gw_output_repo_tree(struct gw_trans *);
172 static const struct got_error	*gw_output_diff(struct gw_trans *,
173 				    struct gw_header *);
174 static const struct got_error	*gw_output_repo_tags(struct gw_trans *,
175 				    struct gw_header *, int, int);
176 static const struct got_error	*gw_output_repo_heads(struct gw_trans *);
177 static const struct got_error	*gw_output_site_link(struct gw_trans *);
178 static const struct got_error	*gw_get_clone_url(char **, struct gw_trans *,
179 				    char *);
180 static const struct got_error	*gw_colordiff_line(struct gw_trans *, char *);
181 
182 static const struct got_error	*gw_gen_commit_header(struct gw_trans *, char *,
183 				    char*);
184 static const struct got_error	*gw_gen_diff_header(struct gw_trans *, char *,
185 				    char*);
186 static const struct got_error	*gw_gen_author_header(struct gw_trans *,
187 				    const char *);
188 static const struct got_error	*gw_gen_age_header(struct gw_trans *,
189 				    const char *);
190 static const struct got_error	*gw_gen_committer_header(struct gw_trans *,
191 				    const char *);
192 static const struct got_error	*gw_gen_commit_msg_header(struct gw_trans*,
193 				    char *);
194 static const struct got_error	*gw_gen_tree_header(struct gw_trans *, char *);
195 static const struct got_error	*gw_display_open(struct gw_trans *, enum khttp,
196 				    enum kmime);
197 static const struct got_error	*gw_display_index(struct gw_trans *);
198 static const struct got_error	*gw_get_header(struct gw_trans *,
199 				    struct gw_header *, int);
200 static const struct got_error	*gw_get_commits(struct gw_trans *,
201 				    struct gw_header *, int,
202 				    struct got_object_id *);
203 static const struct got_error	*gw_get_commit(struct gw_trans *,
204 				    struct gw_header *,
205 				    struct got_commit_object *,
206 				    struct got_object_id *);
207 static const struct got_error	*gw_apply_unveil(const char *);
208 static const struct got_error	*gw_blame_cb(void *, int, int,
209 				    struct got_object_id *);
210 static const struct got_error	*gw_load_got_paths(struct gw_trans *);
211 static const struct got_error	*gw_load_got_path(struct gw_trans *,
212 				    struct gw_dir *);
213 static const struct got_error	*gw_parse_querystring(struct gw_trans *);
214 static const struct got_error	*gw_blame(struct gw_trans *);
215 static const struct got_error	*gw_blob(struct gw_trans *);
216 static const struct got_error	*gw_diff(struct gw_trans *);
217 static const struct got_error	*gw_index(struct gw_trans *);
218 static const struct got_error	*gw_commits(struct gw_trans *);
219 static const struct got_error	*gw_briefs(struct gw_trans *);
220 static const struct got_error	*gw_summary(struct gw_trans *);
221 static const struct got_error	*gw_tree(struct gw_trans *);
222 static const struct got_error	*gw_tag(struct gw_trans *);
223 
224 struct gw_query_action {
225 	unsigned int		 func_id;
226 	const char		*func_name;
227 	const struct got_error	*(*func_main)(struct gw_trans *);
228 	char			*template;
229 };
230 
231 enum gw_query_actions {
232 	GW_BLAME,
233 	GW_BLOB,
234 	GW_BRIEFS,
235 	GW_COMMITS,
236 	GW_DIFF,
237 	GW_ERR,
238 	GW_INDEX,
239 	GW_SUMMARY,
240 	GW_TAG,
241 	GW_TREE,
242 };
243 
244 static struct gw_query_action gw_query_funcs[] = {
245 	{ GW_BLAME,	"blame",	gw_blame,	"gw_tmpl/blame.tmpl" },
246 	{ GW_BLOB,	"blob",		NULL,		NULL },
247 	{ GW_BRIEFS,	"briefs",	gw_briefs,	"gw_tmpl/briefs.tmpl" },
248 	{ GW_COMMITS,	"commits",	gw_commits,	"gw_tmpl/commit.tmpl" },
249 	{ GW_DIFF,	"diff",		gw_diff,	"gw_tmpl/diff.tmpl" },
250 	{ GW_ERR,	"error",	gw_error,	"gw_tmpl/err.tmpl" },
251 	{ GW_INDEX,	"index",	gw_index,	"gw_tmpl/index.tmpl" },
252 	{ GW_SUMMARY,	"summary",	gw_summary,	"gw_tmpl/summry.tmpl" },
253 	{ GW_TAG,	"tag",		gw_tag,		"gw_tmpl/tag.tmpl" },
254 	{ GW_TREE,	"tree",		gw_tree,	"gw_tmpl/tree.tmpl" },
255 };
256 
257 static const char * 
258 gw_get_action_name(struct gw_trans *gw_trans)
259 {
260 	return gw_query_funcs[gw_trans->action].func_name;
261 }
262 
263 static const struct got_error *
264 gw_kcgi_error(enum kcgi_err kerr)
265 {
266 	if (kerr == KCGI_OK)
267 		return NULL;
268 
269 	if (kerr == KCGI_EXIT || kerr == KCGI_HUP)
270 		return got_error(GOT_ERR_CANCELLED);
271 
272 	if (kerr == KCGI_ENOMEM)
273 		return got_error_set_errno(ENOMEM,
274 		    kcgi_strerror(kerr));
275 
276 	if (kerr == KCGI_ENFILE)
277 		return got_error_set_errno(ENFILE,
278 		    kcgi_strerror(kerr));
279 
280 	if (kerr == KCGI_EAGAIN)
281 		return got_error_set_errno(EAGAIN,
282 		    kcgi_strerror(kerr));
283 
284 	if (kerr == KCGI_FORM)
285 		return got_error_msg(GOT_ERR_IO,
286 		    kcgi_strerror(kerr));
287 
288 	return got_error_from_errno(kcgi_strerror(kerr));
289 }
290 
291 static const struct got_error *
292 gw_apply_unveil(const char *repo_path)
293 {
294 	const struct got_error *err;
295 
296 	if (repo_path && unveil(repo_path, "r") != 0)
297 		return got_error_from_errno2("unveil", repo_path);
298 
299 	if (unveil("/tmp", "rwc") != 0)
300 		return got_error_from_errno2("unveil", "/tmp");
301 
302 	err = got_privsep_unveil_exec_helpers();
303 	if (err != NULL)
304 		return err;
305 
306 	if (unveil(NULL, NULL) != 0)
307 		return got_error_from_errno("unveil");
308 
309 	return NULL;
310 }
311 
312 static int
313 isbinary(const uint8_t *buf, size_t n)
314 {
315 	size_t i;
316 
317 	for (i = 0; i < n; i++)
318 		if (buf[i] == 0)
319 			return 1;
320 	return 0;
321 }
322 
323 static const struct got_error *
324 gw_blame(struct gw_trans *gw_trans)
325 {
326 	const struct got_error *error = NULL;
327 	struct gw_header *header = NULL;
328 	char *age = NULL;
329 	enum kcgi_err kerr;
330 
331 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
332 	    NULL) == -1)
333 		return got_error_from_errno("pledge");
334 
335 	if ((header = gw_init_header()) == NULL)
336 		return got_error_from_errno("malloc");
337 
338 	error = gw_apply_unveil(gw_trans->gw_dir->path);
339 	if (error)
340 		goto done;
341 
342 	error = gw_get_header(gw_trans, header, 1);
343 	if (error)
344 		goto done;
345 
346 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
347 	    "blame_header_wrapper", KATTR__MAX);
348 	if (kerr != KCGI_OK)
349 		goto done;
350 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
351 	    "blame_header", KATTR__MAX);
352 	if (kerr != KCGI_OK)
353 		goto done;
354 	error = gw_get_time_str(&age, header->committer_time,
355 	    TM_LONG);
356 	if (error)
357 		goto done;
358 	error = gw_gen_age_header(gw_trans, age ?age : "");
359 	if (error)
360 		goto done;
361 	error = gw_gen_commit_msg_header(gw_trans, header->commit_msg);
362 	if (error)
363 		goto done;
364 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
365 	if (kerr != KCGI_OK)
366 		goto done;
367 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
368 	    "dotted_line", KATTR__MAX);
369 	if (kerr != KCGI_OK)
370 		goto done;
371 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
372 	if (kerr != KCGI_OK)
373 		goto done;
374 
375 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
376 	    "blame", KATTR__MAX);
377 	if (kerr != KCGI_OK)
378 		goto done;
379 	error = gw_output_file_blame(gw_trans);
380 	if (error)
381 		goto done;
382 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
383 done:
384 	gw_free_header(header);
385 	if (error == NULL && kerr != KCGI_OK)
386 		error = gw_kcgi_error(kerr);
387 	return error;
388 }
389 
390 static const struct got_error *
391 gw_blob(struct gw_trans *gw_trans)
392 {
393 	const struct got_error *error = NULL;
394 	struct gw_header *header = NULL;
395 
396 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
397 	    NULL) == -1)
398 		return got_error_from_errno("pledge");
399 
400 	if ((header = gw_init_header()) == NULL)
401 		return got_error_from_errno("malloc");
402 
403 	error = gw_apply_unveil(gw_trans->gw_dir->path);
404 	if (error)
405 		goto done;
406 
407 	error = gw_get_header(gw_trans, header, 1);
408 	if (error)
409 		goto done;
410 
411 	error = gw_output_blob_buf(gw_trans);
412 done:
413 	gw_free_header(header);
414 	return error;
415 }
416 
417 static const struct got_error *
418 gw_diff(struct gw_trans *gw_trans)
419 {
420 	const struct got_error *error = NULL;
421 	struct gw_header *header = NULL;
422 	char *age = NULL;
423 	enum kcgi_err kerr = KCGI_OK;
424 
425 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
426 	    NULL) == -1)
427 		return got_error_from_errno("pledge");
428 
429 	if ((header = gw_init_header()) == NULL)
430 		return got_error_from_errno("malloc");
431 
432 	error = gw_apply_unveil(gw_trans->gw_dir->path);
433 	if (error)
434 		goto done;
435 
436 	error = gw_get_header(gw_trans, header, 1);
437 	if (error)
438 		goto done;
439 
440 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
441 	    "diff_header_wrapper", KATTR__MAX);
442 	if (kerr != KCGI_OK)
443 		goto done;
444 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
445 	    "diff_header", KATTR__MAX);
446 	if (kerr != KCGI_OK)
447 		goto done;
448 	error = gw_gen_diff_header(gw_trans, header->parent_id,
449 	    header->commit_id);
450 	if (error)
451 		goto done;
452 	error = gw_gen_commit_header(gw_trans, header->commit_id,
453 	    header->refs_str);
454 	if (error)
455 		goto done;
456 	error = gw_gen_tree_header(gw_trans, header->tree_id);
457 	if (error)
458 		goto done;
459 	error = gw_gen_author_header(gw_trans, header->author);
460 	if (error)
461 		goto done;
462 	error = gw_gen_committer_header(gw_trans, header->author);
463 	if (error)
464 		goto done;
465 	error = gw_get_time_str(&age, header->committer_time,
466 	    TM_LONG);
467 	if (error)
468 		goto done;
469 	error = gw_gen_age_header(gw_trans, age ?age : "");
470 	if (error)
471 		goto done;
472 	error = gw_gen_commit_msg_header(gw_trans, header->commit_msg);
473 	if (error)
474 		goto done;
475 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
476 	if (kerr != KCGI_OK)
477 		goto done;
478 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
479 	    "dotted_line", KATTR__MAX);
480 	if (kerr != KCGI_OK)
481 		goto done;
482 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
483 	if (kerr != KCGI_OK)
484 		goto done;
485 
486 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
487 	    "diff", KATTR__MAX);
488 	if (kerr != KCGI_OK)
489 		goto done;
490 	error = gw_output_diff(gw_trans, header);
491 	if (error)
492 		goto done;
493 
494 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
495 done:
496 	gw_free_header(header);
497 	free(age);
498 	if (error == NULL && kerr != KCGI_OK)
499 		error = gw_kcgi_error(kerr);
500 	return error;
501 }
502 
503 static const struct got_error *
504 gw_index(struct gw_trans *gw_trans)
505 {
506 	const struct got_error *error = NULL;
507 	struct gw_dir *gw_dir = NULL;
508 	char *href_next = NULL, *href_prev = NULL, *href_summary = NULL;
509 	char *href_briefs = NULL, *href_commits = NULL, *href_tree = NULL;
510 	unsigned int prev_disp = 0, next_disp = 1, dir_c = 0;
511 	enum kcgi_err kerr;
512 
513 	if (pledge("stdio rpath proc exec sendfd unveil",
514 	    NULL) == -1) {
515 		error = got_error_from_errno("pledge");
516 		return error;
517 	}
518 
519 	error = gw_apply_unveil(gw_trans->gw_conf->got_repos_path);
520 	if (error)
521 		return error;
522 
523 	error = gw_load_got_paths(gw_trans);
524 	if (error)
525 		return error;
526 
527 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
528 	    "index_header", KATTR__MAX);
529 	if (kerr != KCGI_OK)
530 		return gw_kcgi_error(kerr);
531 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
532 	    "index_header_project", KATTR__MAX);
533 	if (kerr != KCGI_OK)
534 		return gw_kcgi_error(kerr);
535 	kerr = khtml_puts(gw_trans->gw_html_req, "Project");
536 	if (kerr != KCGI_OK)
537 		return gw_kcgi_error(kerr);
538 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
539 	if (kerr != KCGI_OK)
540 		return gw_kcgi_error(kerr);
541 
542 	if (gw_trans->gw_conf->got_show_repo_description) {
543 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
544 		    "index_header_description", KATTR__MAX);
545 		if (kerr != KCGI_OK)
546 			return gw_kcgi_error(kerr);
547 		kerr = khtml_puts(gw_trans->gw_html_req, "Description");
548 		if (kerr != KCGI_OK)
549 			return gw_kcgi_error(kerr);
550 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
551 		if (kerr != KCGI_OK)
552 			return gw_kcgi_error(kerr);
553 	}
554 
555 	if (gw_trans->gw_conf->got_show_repo_owner) {
556 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
557 		    "index_header_owner", KATTR__MAX);
558 		if (kerr != KCGI_OK)
559 			return gw_kcgi_error(kerr);
560 		kerr = khtml_puts(gw_trans->gw_html_req, "Owner");
561 		if (kerr != KCGI_OK)
562 			return gw_kcgi_error(kerr);
563 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
564 		if (kerr != KCGI_OK)
565 			return gw_kcgi_error(kerr);
566 	}
567 
568 	if (gw_trans->gw_conf->got_show_repo_age) {
569 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
570 		    "index_header_age", KATTR__MAX);
571 		if (kerr != KCGI_OK)
572 			return gw_kcgi_error(kerr);
573 		kerr = khtml_puts(gw_trans->gw_html_req, "Last Change");
574 		if (kerr != KCGI_OK)
575 			return gw_kcgi_error(kerr);
576 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
577 		if (kerr != KCGI_OK)
578 			return gw_kcgi_error(kerr);
579 	}
580 
581 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
582 	if (kerr != KCGI_OK)
583 		return gw_kcgi_error(kerr);
584 
585 	if (TAILQ_EMPTY(&gw_trans->gw_dirs)) {
586 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
587 		    "index_wrapper", KATTR__MAX);
588 		if (kerr != KCGI_OK)
589 			return gw_kcgi_error(kerr);
590 		kerr = khtml_puts(gw_trans->gw_html_req,
591 		    "No repositories found in ");
592 		if (kerr != KCGI_OK)
593 			return gw_kcgi_error(kerr);
594 		kerr = khtml_puts(gw_trans->gw_html_req,
595 		    gw_trans->gw_conf->got_repos_path);
596 		if (kerr != KCGI_OK)
597 			return gw_kcgi_error(kerr);
598 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
599 		if (kerr != KCGI_OK)
600 			return gw_kcgi_error(kerr);
601 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
602 		    "dotted_line", KATTR__MAX);
603 		if (kerr != KCGI_OK)
604 			return gw_kcgi_error(kerr);
605 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
606 		if (kerr != KCGI_OK)
607 			return gw_kcgi_error(kerr);
608 		return error;
609 	}
610 
611 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry)
612 		dir_c++;
613 
614 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry) {
615 		if (gw_trans->page > 0 && (gw_trans->page *
616 		    gw_trans->gw_conf->got_max_repos_display) > prev_disp) {
617 			prev_disp++;
618 			continue;
619 		}
620 
621 		prev_disp++;
622 
623 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
624 		    "index_wrapper", KATTR__MAX);
625 		if (kerr != KCGI_OK)
626 			goto done;
627 
628 		if (asprintf(&href_summary, "?path=%s&action=summary",
629 		    gw_dir->name) == -1) {
630 			error = got_error_from_errno("asprintf");
631 			goto done;
632 		}
633 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
634 		    "index_project", KATTR__MAX);
635 		if (kerr != KCGI_OK)
636 			goto done;
637 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
638 		    href_summary, KATTR__MAX);
639 		if (kerr != KCGI_OK)
640 			goto done;
641 		kerr = khtml_puts(gw_trans->gw_html_req, gw_dir->name);
642 		if (kerr != KCGI_OK)
643 			goto done;
644 		kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
645 		if (kerr != KCGI_OK)
646 			goto done;
647 		if (gw_trans->gw_conf->got_show_repo_description) {
648 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
649 			    KATTR_ID, "index_project_description", KATTR__MAX);
650 			if (kerr != KCGI_OK)
651 				goto done;
652 			kerr = khtml_puts(gw_trans->gw_html_req,
653 			    gw_dir->description ? gw_dir->description : "");
654 			if (kerr != KCGI_OK)
655 				goto done;
656 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
657 			if (kerr != KCGI_OK)
658 				goto done;
659 		}
660 		if (gw_trans->gw_conf->got_show_repo_owner) {
661 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
662 			    KATTR_ID, "index_project_owner", KATTR__MAX);
663 			if (kerr != KCGI_OK)
664 				goto done;
665 			kerr = khtml_puts(gw_trans->gw_html_req,
666 			    gw_dir->owner ? gw_dir->owner : "");
667 			if (kerr != KCGI_OK)
668 				goto done;
669 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
670 			if (kerr != KCGI_OK)
671 				goto done;
672 		}
673 		if (gw_trans->gw_conf->got_show_repo_age) {
674 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
675 			    KATTR_ID, "index_project_age", KATTR__MAX);
676 			if (kerr != KCGI_OK)
677 				goto done;
678 			kerr = khtml_puts(gw_trans->gw_html_req,
679 			    gw_dir->age ? gw_dir->age : "");
680 			if (kerr != KCGI_OK)
681 				goto done;
682 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
683 			if (kerr != KCGI_OK)
684 				goto done;
685 		}
686 
687 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
688 		    "navs_wrapper", KATTR__MAX);
689 		if (kerr != KCGI_OK)
690 			goto done;
691 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
692 		    "navs", KATTR__MAX);
693 		if (kerr != KCGI_OK)
694 			goto done;
695 
696 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
697 		    href_summary, KATTR__MAX);
698 		if (kerr != KCGI_OK)
699 			goto done;
700 		kerr = khtml_puts(gw_trans->gw_html_req, "summary");
701 		if (kerr != KCGI_OK)
702 			goto done;
703 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
704 		if (kerr != KCGI_OK)
705 			goto done;
706 
707 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
708 		if (kerr != KCGI_OK)
709 			goto done;
710 
711 		if (asprintf(&href_briefs, "?path=%s&action=briefs",
712 		    gw_dir->name) == -1) {
713 			error = got_error_from_errno("asprintf");
714 			goto done;
715 		}
716 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
717 		    href_briefs, KATTR__MAX);
718 		if (kerr != KCGI_OK)
719 			goto done;
720 		kerr = khtml_puts(gw_trans->gw_html_req, "commit briefs");
721 		if (kerr != KCGI_OK)
722 			goto done;
723 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
724 		if (kerr != KCGI_OK)
725 			error = gw_kcgi_error(kerr);
726 
727 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
728 		if (kerr != KCGI_OK)
729 			goto done;
730 
731 		if (asprintf(&href_commits, "?path=%s&action=commits",
732 		    gw_dir->name) == -1) {
733 			error = got_error_from_errno("asprintf");
734 			goto done;
735 		}
736 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
737 		    href_commits, KATTR__MAX);
738 		if (kerr != KCGI_OK)
739 			goto done;
740 		kerr = khtml_puts(gw_trans->gw_html_req, "commits");
741 		if (kerr != KCGI_OK)
742 			goto done;
743 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
744 		if (kerr != KCGI_OK)
745 			goto done;
746 
747 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
748 		if (kerr != KCGI_OK)
749 			goto done;
750 
751 		if (asprintf(&href_tree, "?path=%s&action=tree",
752 		    gw_dir->name) == -1) {
753 			error = got_error_from_errno("asprintf");
754 			goto done;
755 		}
756 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
757 		    href_tree, KATTR__MAX);
758 		if (kerr != KCGI_OK)
759 			goto done;
760 		kerr = khtml_puts(gw_trans->gw_html_req, "tree");
761 		if (kerr != KCGI_OK)
762 			goto done;
763 
764 		kerr = khtml_closeelem(gw_trans->gw_html_req, 4);
765 		if (kerr != KCGI_OK)
766 			goto done;
767 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
768 		    "dotted_line", KATTR__MAX);
769 		if (kerr != KCGI_OK)
770 			goto done;
771 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
772 		if (kerr != KCGI_OK)
773 			goto done;
774 
775 		free(href_summary);
776 		href_summary = NULL;
777 		free(href_briefs);
778 		href_briefs = NULL;
779 		free(href_commits);
780 		href_commits = NULL;
781 		free(href_tree);
782 		href_tree = NULL;
783 
784 		if (gw_trans->gw_conf->got_max_repos_display == 0)
785 			continue;
786 
787 		if (next_disp == gw_trans->gw_conf->got_max_repos_display) {
788 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
789 			    KATTR_ID, "np_wrapper", KATTR__MAX);
790 			if (kerr != KCGI_OK)
791 				goto done;
792 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
793 			    KATTR_ID, "nav_prev", KATTR__MAX);
794 			if (kerr != KCGI_OK)
795 				goto done;
796 		} else if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
797 		    (gw_trans->page > 0) &&
798 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
799 		    prev_disp == gw_trans->repos_total)) {
800 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
801 			    KATTR_ID, "np_wrapper", KATTR__MAX);
802 			if (kerr != KCGI_OK)
803 				goto done;
804 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
805 			    KATTR_ID, "nav_prev", KATTR__MAX);
806 			if (kerr != KCGI_OK)
807 				goto done;
808 		}
809 
810 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
811 		    (gw_trans->page > 0) &&
812 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
813 		    prev_disp == gw_trans->repos_total)) {
814 			if (asprintf(&href_prev, "?page=%d",
815 			    gw_trans->page - 1) == -1) {
816 				error = got_error_from_errno("asprintf");
817 				goto done;
818 			}
819 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
820 			    KATTR_HREF, href_prev, KATTR__MAX);
821 			if (kerr != KCGI_OK)
822 				goto done;
823 			kerr = khtml_puts(gw_trans->gw_html_req, "Previous");
824 			if (kerr != KCGI_OK)
825 				goto done;
826 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
827 			if (kerr != KCGI_OK)
828 				goto done;
829 		}
830 
831 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
832 		if (kerr != KCGI_OK)
833 			return gw_kcgi_error(kerr);
834 
835 		if (gw_trans->gw_conf->got_max_repos_display > 0 &&
836 		    next_disp == gw_trans->gw_conf->got_max_repos_display &&
837 		    dir_c != (gw_trans->page + 1) *
838 		    gw_trans->gw_conf->got_max_repos_display) {
839 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
840 			    KATTR_ID, "nav_next", KATTR__MAX);
841 			if (kerr != KCGI_OK)
842 				goto done;
843 			if (asprintf(&href_next, "?page=%d",
844 			    gw_trans->page + 1) == -1) {
845 				error = got_error_from_errno("calloc");
846 				goto done;
847 			}
848 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
849 			    KATTR_HREF, href_next, KATTR__MAX);
850 			if (kerr != KCGI_OK)
851 				goto done;
852 			kerr = khtml_puts(gw_trans->gw_html_req, "Next");
853 			if (kerr != KCGI_OK)
854 				goto done;
855 			kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
856 			if (kerr != KCGI_OK)
857 				goto done;
858 			next_disp = 0;
859 			break;
860 		}
861 
862 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
863 		    (gw_trans->page > 0) &&
864 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
865 		    prev_disp == gw_trans->repos_total)) {
866 			kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
867 			if (kerr != KCGI_OK)
868 				goto done;
869 		}
870 		next_disp++;
871 	}
872 done:
873 	free(href_prev);
874 	free(href_next);
875 	free(href_summary);
876 	free(href_briefs);
877 	free(href_commits);
878 	free(href_tree);
879 	if (error == NULL && kerr != KCGI_OK)
880 		error = gw_kcgi_error(kerr);
881 	return error;
882 }
883 
884 static const struct got_error *
885 gw_commits(struct gw_trans *gw_trans)
886 {
887 	const struct got_error *error = NULL;
888 	struct gw_header *header = NULL, *n_header = NULL;
889 	char *age = NULL;
890 	char *href_diff = NULL, *href_blob = NULL;
891 	enum kcgi_err kerr = KCGI_OK;
892 
893 	if ((header = gw_init_header()) == NULL)
894 		return got_error_from_errno("malloc");
895 
896 	if (pledge("stdio rpath proc exec sendfd unveil",
897 	    NULL) == -1) {
898 		error = got_error_from_errno("pledge");
899 		goto done;
900 	}
901 
902 	error = gw_apply_unveil(gw_trans->gw_dir->path);
903 	if (error)
904 		goto done;
905 
906 	error = gw_get_header(gw_trans, header,
907 	    gw_trans->gw_conf->got_max_commits_display);
908 	if (error)
909 		goto done;
910 
911 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry) {
912 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
913 		    "commits_line_wrapper", KATTR__MAX);
914 		if (kerr != KCGI_OK)
915 			goto done;
916 		error = gw_gen_commit_header(gw_trans, n_header->commit_id,
917 		    n_header->refs_str);
918 		if (error)
919 			goto done;
920 		error = gw_gen_author_header(gw_trans, n_header->author);
921 		if (error)
922 			goto done;
923 		error = gw_gen_committer_header(gw_trans, n_header->author);
924 		if (error)
925 			goto done;
926 		error = gw_get_time_str(&age, n_header->committer_time,
927 		    TM_LONG);
928 		if (error)
929 			goto done;
930 		error = gw_gen_age_header(gw_trans, age ?age : "");
931 		if (error)
932 			goto done;
933 		kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
934 		if (kerr != KCGI_OK)
935 			goto done;
936 
937 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
938 		    "dotted_line", KATTR__MAX);
939 		if (kerr != KCGI_OK)
940 			goto done;
941 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
942 		if (kerr != KCGI_OK)
943 			goto done;
944 
945 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
946 		    "commit", KATTR__MAX);
947 		if (kerr != KCGI_OK)
948 			goto done;
949 		kerr = khttp_puts(gw_trans->gw_req, n_header->commit_msg);
950 		if (kerr != KCGI_OK)
951 			goto done;
952 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
953 		if (kerr != KCGI_OK)
954 			goto done;
955 
956 		if (asprintf(&href_diff, "?path=%s&action=diff&commit=%s",
957 		    gw_trans->repo_name, n_header->commit_id) == -1) {
958 			error = got_error_from_errno("asprintf");
959 			goto done;
960 		}
961 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
962 		    KATTR_ID, "navs_wrapper", KATTR__MAX);
963 		if (kerr != KCGI_OK)
964 			goto done;
965 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
966 		    KATTR_ID, "navs", KATTR__MAX);
967 		if (kerr != KCGI_OK)
968 			goto done;
969 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
970 		    KATTR_HREF, href_diff, KATTR__MAX);
971 		if (kerr != KCGI_OK)
972 			goto done;
973 		kerr = khtml_puts(gw_trans->gw_html_req, "diff");
974 		if (kerr != KCGI_OK)
975 			goto done;
976 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
977 		if (kerr != KCGI_OK)
978 			goto done;
979 
980 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
981 		if (kerr != KCGI_OK)
982 			goto done;
983 
984 		if (asprintf(&href_blob, "?path=%s&action=tree&commit=%s",
985 		    gw_trans->repo_name, n_header->commit_id) == -1) {
986 			error = got_error_from_errno("asprintf");
987 			goto done;
988 		}
989 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
990 		    KATTR_HREF, href_blob, KATTR__MAX);
991 		if (kerr != KCGI_OK)
992 			goto done;
993 		khtml_puts(gw_trans->gw_html_req, "tree");
994 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
995 		if (kerr != KCGI_OK)
996 			goto done;
997 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
998 		if (kerr != KCGI_OK)
999 			goto done;
1000 
1001 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1002 		    "solid_line", KATTR__MAX);
1003 		if (kerr != KCGI_OK)
1004 			goto done;
1005 		kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
1006 		if (kerr != KCGI_OK)
1007 			goto done;
1008 
1009 		free(age);
1010 		age = NULL;
1011 	}
1012 done:
1013 	gw_free_header(header);
1014 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry)
1015 		gw_free_header(n_header);
1016 	free(age);
1017 	free(href_diff);
1018 	free(href_blob);
1019 	if (error == NULL && kerr != KCGI_OK)
1020 		error = gw_kcgi_error(kerr);
1021 	return error;
1022 }
1023 
1024 static const struct got_error *
1025 gw_briefs(struct gw_trans *gw_trans)
1026 {
1027 	const struct got_error *error = NULL;
1028 	struct gw_header *header = NULL, *n_header = NULL;
1029 	char *age = NULL;
1030 	char *href_diff = NULL, *href_blob = NULL;
1031 	char *newline, *smallerthan;
1032 	enum kcgi_err kerr = KCGI_OK;
1033 
1034 	if ((header = gw_init_header()) == NULL)
1035 		return got_error_from_errno("malloc");
1036 
1037 	if (pledge("stdio rpath proc exec sendfd unveil",
1038 	    NULL) == -1) {
1039 		error = got_error_from_errno("pledge");
1040 		goto done;
1041 	}
1042 
1043 	error = gw_apply_unveil(gw_trans->gw_dir->path);
1044 	if (error)
1045 		goto done;
1046 
1047 	if (gw_trans->action == GW_SUMMARY)
1048 		error = gw_get_header(gw_trans, header, D_MAXSLCOMMDISP);
1049 	else
1050 		error = gw_get_header(gw_trans, header,
1051 		    gw_trans->gw_conf->got_max_commits_display);
1052 	if (error)
1053 		goto done;
1054 
1055 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry) {
1056 		error = gw_get_time_str(&age, n_header->committer_time,
1057 		    TM_DIFF);
1058 		if (error)
1059 			goto done;
1060 
1061 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1062 		    KATTR_ID, "briefs_wrapper", KATTR__MAX);
1063 		if (kerr != KCGI_OK)
1064 			goto done;
1065 
1066 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1067 		    KATTR_ID, "briefs_age", KATTR__MAX);
1068 		if (kerr != KCGI_OK)
1069 			goto done;
1070 		kerr = khtml_puts(gw_trans->gw_html_req, age ? age : "");
1071 		if (kerr != KCGI_OK)
1072 			goto done;
1073 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1074 		if (kerr != KCGI_OK)
1075 			goto done;
1076 
1077 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1078 		    KATTR_ID, "briefs_author", KATTR__MAX);
1079 		if (kerr != KCGI_OK)
1080 			goto done;
1081 		smallerthan = strchr(n_header->author, '<');
1082 		if (smallerthan)
1083 			*smallerthan = '\0';
1084 		kerr = khtml_puts(gw_trans->gw_html_req, n_header->author);
1085 		if (kerr != KCGI_OK)
1086 			goto done;
1087 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1088 		if (kerr != KCGI_OK)
1089 			goto done;
1090 
1091 		if (asprintf(&href_diff, "?path=%s&action=diff&commit=%s",
1092 		    gw_trans->repo_name, n_header->commit_id) == -1) {
1093 			error = got_error_from_errno("asprintf");
1094 			goto done;
1095 		}
1096 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1097 		    KATTR_ID, "briefs_log", KATTR__MAX);
1098 		if (kerr != KCGI_OK)
1099 			goto done;
1100 		newline = strchr(n_header->commit_msg, '\n');
1101 		if (newline)
1102 			*newline = '\0';
1103 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
1104 		    KATTR_HREF, href_diff, KATTR__MAX);
1105 		if (kerr != KCGI_OK)
1106 			goto done;
1107 		kerr = khtml_puts(gw_trans->gw_html_req, n_header->commit_msg);
1108 		if (kerr != KCGI_OK)
1109 			goto done;
1110 		kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
1111 		if (kerr != KCGI_OK)
1112 			goto done;
1113 
1114 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1115 		    KATTR_ID, "navs_wrapper", KATTR__MAX);
1116 		if (kerr != KCGI_OK)
1117 			goto done;
1118 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1119 		    KATTR_ID, "navs", KATTR__MAX);
1120 		if (kerr != KCGI_OK)
1121 			goto done;
1122 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
1123 		    KATTR_HREF, href_diff, KATTR__MAX);
1124 		if (kerr != KCGI_OK)
1125 			goto done;
1126 		kerr = khtml_puts(gw_trans->gw_html_req, "diff");
1127 		if (kerr != KCGI_OK)
1128 			goto done;
1129 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1130 		if (kerr != KCGI_OK)
1131 			goto done;
1132 
1133 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
1134 		if (kerr != KCGI_OK)
1135 			goto done;
1136 
1137 		if (asprintf(&href_blob, "?path=%s&action=tree&commit=%s",
1138 		    gw_trans->repo_name, n_header->commit_id) == -1) {
1139 			error = got_error_from_errno("asprintf");
1140 			goto done;
1141 		}
1142 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
1143 		    KATTR_HREF, href_blob, KATTR__MAX);
1144 		if (kerr != KCGI_OK)
1145 			goto done;
1146 		khtml_puts(gw_trans->gw_html_req, "tree");
1147 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1148 		if (kerr != KCGI_OK)
1149 			goto done;
1150 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1151 		if (kerr != KCGI_OK)
1152 			goto done;
1153 
1154 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1155 		    KATTR_ID, "dotted_line", KATTR__MAX);
1156 		if (kerr != KCGI_OK)
1157 			goto done;
1158 		kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
1159 		if (kerr != KCGI_OK)
1160 			goto done;
1161 
1162 		free(age);
1163 		age = NULL;
1164 		free(href_diff);
1165 		href_diff = NULL;
1166 		free(href_blob);
1167 		href_blob = NULL;
1168 	}
1169 done:
1170 	gw_free_header(header);
1171 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry)
1172 		gw_free_header(n_header);
1173 	free(age);
1174 	free(href_diff);
1175 	free(href_blob);
1176 	if (error == NULL && kerr != KCGI_OK)
1177 		error = gw_kcgi_error(kerr);
1178 	return error;
1179 }
1180 
1181 static const struct got_error *
1182 gw_summary(struct gw_trans *gw_trans)
1183 {
1184 	const struct got_error *error = NULL;
1185 	char *age = NULL;
1186 	enum kcgi_err kerr = KCGI_OK;
1187 
1188 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
1189 		return got_error_from_errno("pledge");
1190 
1191 	/* unveil is applied with gw_briefs below */
1192 
1193 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1194 	    "summary_wrapper", KATTR__MAX);
1195 	if (kerr != KCGI_OK)
1196 		return gw_kcgi_error(kerr);
1197 
1198 	if (gw_trans->gw_conf->got_show_repo_description &&
1199 	    gw_trans->gw_dir->description != NULL &&
1200 	    (strcmp(gw_trans->gw_dir->description, "") != 0)) {
1201 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1202 		    KATTR_ID, "description_title", KATTR__MAX);
1203 		if (kerr != KCGI_OK)
1204 			goto done;
1205 		kerr = khtml_puts(gw_trans->gw_html_req, "Description: ");
1206 		if (kerr != KCGI_OK)
1207 			goto done;
1208 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1209 		if (kerr != KCGI_OK)
1210 			goto done;
1211 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1212 		    KATTR_ID, "description", KATTR__MAX);
1213 		if (kerr != KCGI_OK)
1214 			goto done;
1215 		kerr = khtml_puts(gw_trans->gw_html_req,
1216 		    gw_trans->gw_dir->description);
1217 		if (kerr != KCGI_OK)
1218 			goto done;
1219 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1220 		if (kerr != KCGI_OK)
1221 			goto done;
1222 	}
1223 
1224 	if (gw_trans->gw_conf->got_show_repo_owner &&
1225 	    gw_trans->gw_dir->owner != NULL &&
1226 	    (strcmp(gw_trans->gw_dir->owner, "") != 0)) {
1227 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1228 		    KATTR_ID, "repo_owner_title", KATTR__MAX);
1229 		if (kerr != KCGI_OK)
1230 			goto done;
1231 		kerr = khtml_puts(gw_trans->gw_html_req, "Owner: ");
1232 		if (kerr != KCGI_OK)
1233 			goto done;
1234 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1235 		if (kerr != KCGI_OK)
1236 			goto done;
1237 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1238 		    KATTR_ID, "repo_owner", KATTR__MAX);
1239 		if (kerr != KCGI_OK)
1240 			goto done;
1241 		kerr = khtml_puts(gw_trans->gw_html_req,
1242 		     gw_trans->gw_dir->owner);
1243 		if (kerr != KCGI_OK)
1244 			goto done;
1245 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1246 		if (kerr != KCGI_OK)
1247 			goto done;
1248 	}
1249 
1250 	if (gw_trans->gw_conf->got_show_repo_age) {
1251 		error = gw_get_repo_age(&age, gw_trans, gw_trans->gw_dir->path,
1252 		    NULL, TM_LONG);
1253 		if (error)
1254 			goto done;
1255 		if (age != NULL) {
1256 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1257 			    KATTR_ID, "last_change_title", KATTR__MAX);
1258 			if (kerr != KCGI_OK)
1259 				goto done;
1260 			kerr = khtml_puts(gw_trans->gw_html_req,
1261 			    "Last Change: ");
1262 			if (kerr != KCGI_OK)
1263 				goto done;
1264 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1265 			if (kerr != KCGI_OK)
1266 				goto done;
1267 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1268 			    KATTR_ID, "last_change", KATTR__MAX);
1269 			if (kerr != KCGI_OK)
1270 				goto done;
1271 			kerr = khtml_puts(gw_trans->gw_html_req, age);
1272 			if (kerr != KCGI_OK)
1273 				goto done;
1274 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1275 			if (kerr != KCGI_OK)
1276 				goto done;
1277 		}
1278 	}
1279 
1280 	if (gw_trans->gw_conf->got_show_repo_cloneurl &&
1281 	    gw_trans->gw_dir->url != NULL &&
1282 	    (strcmp(gw_trans->gw_dir->url, "") != 0)) {
1283 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1284 		    KATTR_ID, "cloneurl_title", KATTR__MAX);
1285 		if (kerr != KCGI_OK)
1286 			goto done;
1287 		kerr = khtml_puts(gw_trans->gw_html_req, "Clone URL: ");
1288 		if (kerr != KCGI_OK)
1289 			goto done;
1290 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1291 		if (kerr != KCGI_OK)
1292 			goto done;
1293 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1294 		    KATTR_ID, "cloneurl", KATTR__MAX);
1295 		if (kerr != KCGI_OK)
1296 			goto done;
1297 		kerr = khtml_puts(gw_trans->gw_html_req, gw_trans->gw_dir->url);
1298 		if (kerr != KCGI_OK)
1299 			goto done;
1300 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1301 		if (kerr != KCGI_OK)
1302 			goto done;
1303 	}
1304 
1305 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1306 	if (kerr != KCGI_OK)
1307 		goto done;
1308 
1309 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1310 	    "briefs_title_wrapper", KATTR__MAX);
1311 	if (kerr != KCGI_OK)
1312 		goto done;
1313 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1314 	    "briefs_title", KATTR__MAX);
1315 	if (kerr != KCGI_OK)
1316 		goto done;
1317 	kerr = khtml_puts(gw_trans->gw_html_req, "Commit Briefs");
1318 	if (kerr != KCGI_OK)
1319 		goto done;
1320 	if (gw_trans->headref) {
1321 		kerr = khtml_puts(gw_trans->gw_html_req, " (");
1322 		if (kerr != KCGI_OK)
1323 			goto done;
1324 		kerr = khtml_puts(gw_trans->gw_html_req, gw_trans->headref);
1325 		if (kerr != KCGI_OK)
1326 			goto done;
1327 		kerr = khtml_puts(gw_trans->gw_html_req, ")");
1328 		if (kerr != KCGI_OK)
1329 			goto done;
1330 	}
1331 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
1332 	if (kerr != KCGI_OK)
1333 		goto done;
1334 	error = gw_briefs(gw_trans);
1335 	if (error)
1336 		goto done;
1337 
1338 	error = gw_output_repo_tags(gw_trans, NULL, D_MAXSLCOMMDISP,
1339 	    TAGBRIEF);
1340 	if (error)
1341 		goto done;
1342 
1343 	error = gw_output_repo_heads(gw_trans);
1344 done:
1345 	free(age);
1346 	if (error == NULL && kerr != KCGI_OK)
1347 		error = gw_kcgi_error(kerr);
1348 	return error;
1349 }
1350 
1351 static const struct got_error *
1352 gw_tree(struct gw_trans *gw_trans)
1353 {
1354 	const struct got_error *error = NULL;
1355 	struct gw_header *header = NULL;
1356 	char *tree = NULL, *tree_html = NULL, *tree_html_disp = NULL;
1357 	char *age = NULL;
1358 	enum kcgi_err kerr;
1359 
1360 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
1361 		return got_error_from_errno("pledge");
1362 
1363 	if ((header = gw_init_header()) == NULL)
1364 		return got_error_from_errno("malloc");
1365 
1366 	error = gw_apply_unveil(gw_trans->gw_dir->path);
1367 	if (error)
1368 		goto done;
1369 
1370 	error = gw_get_header(gw_trans, header, 1);
1371 	if (error)
1372 		goto done;
1373 
1374 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1375 	    "tree_header_wrapper", KATTR__MAX);
1376 	if (kerr != KCGI_OK)
1377 		goto done;
1378 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1379 	    "tree_header", KATTR__MAX);
1380 	if (kerr != KCGI_OK)
1381 		goto done;
1382 	error = gw_gen_tree_header(gw_trans, header->tree_id);
1383 	if (error)
1384 		goto done;
1385 	error = gw_get_time_str(&age, header->committer_time,
1386 	    TM_LONG);
1387 	if (error)
1388 		goto done;
1389 	error = gw_gen_age_header(gw_trans, age ?age : "");
1390 	if (error)
1391 		goto done;
1392 	error = gw_gen_commit_msg_header(gw_trans, header->commit_msg);
1393 	if (error)
1394 		goto done;
1395 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
1396 	if (kerr != KCGI_OK)
1397 		goto done;
1398 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1399 	    "dotted_line", KATTR__MAX);
1400 	if (kerr != KCGI_OK)
1401 		goto done;
1402 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1403 	if (kerr != KCGI_OK)
1404 		goto done;
1405 
1406 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1407 	    "tree", KATTR__MAX);
1408 	if (kerr != KCGI_OK)
1409 		goto done;
1410 	error = gw_output_repo_tree(gw_trans);
1411 	if (error)
1412 		goto done;
1413 
1414 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1415 done:
1416 	gw_free_header(header);
1417 	free(tree_html_disp);
1418 	free(tree_html);
1419 	free(tree);
1420 	free(age);
1421 	if (error == NULL && kerr != KCGI_OK)
1422 		error = gw_kcgi_error(kerr);
1423 	return error;
1424 }
1425 
1426 static const struct got_error *
1427 gw_tag(struct gw_trans *gw_trans)
1428 {
1429 	const struct got_error *error = NULL;
1430 	struct gw_header *header = NULL;
1431 	enum kcgi_err kerr;
1432 
1433 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
1434 		return got_error_from_errno("pledge");
1435 
1436 	if ((header = gw_init_header()) == NULL)
1437 		return got_error_from_errno("malloc");
1438 
1439 	error = gw_apply_unveil(gw_trans->gw_dir->path);
1440 	if (error)
1441 		goto done;
1442 
1443 	error = gw_get_header(gw_trans, header, 1);
1444 	if (error)
1445 		goto done;
1446 
1447 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1448 	    "tag_header_wrapper", KATTR__MAX);
1449 	if (kerr != KCGI_OK)
1450 		goto done;
1451 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1452 	    "tag_header", KATTR__MAX);
1453 	if (kerr != KCGI_OK)
1454 		goto done;
1455 	error = gw_gen_commit_header(gw_trans, header->commit_id,
1456 	    header->refs_str);
1457 	if (error)
1458 		goto done;
1459 	error = gw_gen_commit_msg_header(gw_trans, header->commit_msg);
1460 	if (error)
1461 		goto done;
1462 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
1463 	if (kerr != KCGI_OK)
1464 		goto done;
1465 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1466 	    "dotted_line", KATTR__MAX);
1467 	if (kerr != KCGI_OK)
1468 		goto done;
1469 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1470 	if (kerr != KCGI_OK)
1471 		goto done;
1472 
1473 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1474 	    "tree", KATTR__MAX);
1475 	if (kerr != KCGI_OK)
1476 		goto done;
1477 
1478 	error = gw_output_repo_tags(gw_trans, header, 1, TAGFULL);
1479 	if (error)
1480 		goto done;
1481 
1482 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1483 done:
1484 	gw_free_header(header);
1485 	if (error == NULL && kerr != KCGI_OK)
1486 		error = gw_kcgi_error(kerr);
1487 	return error;
1488 }
1489 
1490 static const struct got_error *
1491 gw_load_got_path(struct gw_trans *gw_trans, struct gw_dir *gw_dir)
1492 {
1493 	const struct got_error *error = NULL;
1494 	DIR *dt;
1495 	char *dir_test;
1496 	int opened = 0;
1497 
1498 	if (asprintf(&dir_test, "%s/%s/%s",
1499 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
1500 	    GOTWEB_GIT_DIR) == -1)
1501 		return got_error_from_errno("asprintf");
1502 
1503 	dt = opendir(dir_test);
1504 	if (dt == NULL) {
1505 		free(dir_test);
1506 	} else {
1507 		gw_dir->path = strdup(dir_test);
1508 		if (gw_dir->path == NULL) {
1509 			opened = 1;
1510 			error = got_error_from_errno("strdup");
1511 			goto errored;
1512 		}
1513 		opened = 1;
1514 		goto done;
1515 	}
1516 
1517 	if (asprintf(&dir_test, "%s/%s/%s",
1518 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
1519 	    GOTWEB_GOT_DIR) == -1) {
1520 		dir_test = NULL;
1521 		error = got_error_from_errno("asprintf");
1522 		goto errored;
1523 	}
1524 
1525 	dt = opendir(dir_test);
1526 	if (dt == NULL)
1527 		free(dir_test);
1528 	else {
1529 		opened = 1;
1530 		error = got_error(GOT_ERR_NOT_GIT_REPO);
1531 		goto errored;
1532 	}
1533 
1534 	if (asprintf(&dir_test, "%s/%s",
1535 	    gw_trans->gw_conf->got_repos_path, gw_dir->name) == -1) {
1536 		error = got_error_from_errno("asprintf");
1537 		dir_test = NULL;
1538 		goto errored;
1539 	}
1540 
1541 	gw_dir->path = strdup(dir_test);
1542 	if (gw_dir->path == NULL) {
1543 		opened = 1;
1544 		error = got_error_from_errno("strdup");
1545 		goto errored;
1546 	}
1547 
1548 	dt = opendir(dir_test);
1549 	if (dt == NULL) {
1550 		error = got_error_from_errno2("bad path", dir_test);
1551 		goto errored;
1552 	} else
1553 		opened = 1;
1554 done:
1555 	error = gw_get_repo_description(&gw_dir->description, gw_trans,
1556 	    gw_dir->path);
1557 	if (error)
1558 		goto errored;
1559 	error = gw_get_repo_owner(&gw_dir->owner, gw_trans, gw_dir->path);
1560 	if (error)
1561 		goto errored;
1562 	error = gw_get_repo_age(&gw_dir->age, gw_trans, gw_dir->path,
1563 	    NULL, TM_DIFF);
1564 	if (error)
1565 		goto errored;
1566 	error = gw_get_clone_url(&gw_dir->url, gw_trans, gw_dir->path);
1567 errored:
1568 	free(dir_test);
1569 	if (opened)
1570 		closedir(dt);
1571 	return error;
1572 }
1573 
1574 static const struct got_error *
1575 gw_load_got_paths(struct gw_trans *gw_trans)
1576 {
1577 	const struct got_error *error = NULL;
1578 	DIR *d;
1579 	struct dirent **sd_dent;
1580 	struct gw_dir *gw_dir;
1581 	struct stat st;
1582 	unsigned int d_cnt, d_i;
1583 
1584 	d = opendir(gw_trans->gw_conf->got_repos_path);
1585 	if (d == NULL) {
1586 		error = got_error_from_errno2("opendir",
1587 		    gw_trans->gw_conf->got_repos_path);
1588 		return error;
1589 	}
1590 
1591 	d_cnt = scandir(gw_trans->gw_conf->got_repos_path, &sd_dent, NULL,
1592 	    alphasort);
1593 	if (d_cnt == -1) {
1594 		error = got_error_from_errno2("scandir",
1595 		    gw_trans->gw_conf->got_repos_path);
1596 		return error;
1597 	}
1598 
1599 	for (d_i = 0; d_i < d_cnt; d_i++) {
1600 		if (gw_trans->gw_conf->got_max_repos > 0 &&
1601 		    (d_i - 2) == gw_trans->gw_conf->got_max_repos)
1602 			break; /* account for parent and self */
1603 
1604 		if (strcmp(sd_dent[d_i]->d_name, ".") == 0 ||
1605 		    strcmp(sd_dent[d_i]->d_name, "..") == 0)
1606 			continue;
1607 
1608 		error = gw_init_gw_dir(&gw_dir, sd_dent[d_i]->d_name);
1609 		if (error)
1610 			return error;
1611 
1612 		error = gw_load_got_path(gw_trans, gw_dir);
1613 		if (error && error->code == GOT_ERR_NOT_GIT_REPO) {
1614 			error = NULL;
1615 			continue;
1616 		}
1617 		else if (error)
1618 			return error;
1619 
1620 		if (lstat(gw_dir->path, &st) == 0 && S_ISDIR(st.st_mode) &&
1621 		    !got_path_dir_is_empty(gw_dir->path)) {
1622 			TAILQ_INSERT_TAIL(&gw_trans->gw_dirs, gw_dir,
1623 			    entry);
1624 			gw_trans->repos_total++;
1625 		}
1626 	}
1627 
1628 	closedir(d);
1629 	return error;
1630 }
1631 
1632 static const struct got_error *
1633 gw_parse_querystring(struct gw_trans *gw_trans)
1634 {
1635 	const struct got_error *error = NULL;
1636 	struct kpair *p;
1637 	struct gw_query_action *action = NULL;
1638 	unsigned int i;
1639 
1640 	if (gw_trans->gw_req->fieldnmap[0]) {
1641 		error = got_error_from_errno("bad parse");
1642 		return error;
1643 	} else if ((p = gw_trans->gw_req->fieldmap[KEY_PATH])) {
1644 		/* define gw_trans->repo_path */
1645 		gw_trans->repo_name = p->parsed.s;
1646 
1647 		if (asprintf(&gw_trans->repo_path, "%s/%s",
1648 		    gw_trans->gw_conf->got_repos_path, p->parsed.s) == -1)
1649 			return got_error_from_errno("asprintf");
1650 
1651 		/* get action and set function */
1652 		if ((p = gw_trans->gw_req->fieldmap[KEY_ACTION])) {
1653 			for (i = 0; i < nitems(gw_query_funcs); i++) {
1654 				action = &gw_query_funcs[i];
1655 				if (action->func_name == NULL)
1656 					continue;
1657 				if (strcmp(action->func_name,
1658 				    p->parsed.s) == 0) {
1659 					gw_trans->action = i;
1660 					break;
1661 				}
1662 			}
1663 		}
1664 		if (gw_trans->action == -1) {
1665 			gw_trans->action = GW_ERR;
1666 			gw_trans->error = got_error_from_errno("bad action");
1667 			return error;
1668 		}
1669 
1670  		if ((p = gw_trans->gw_req->fieldmap[KEY_COMMIT_ID])) {
1671 			if (asprintf(&gw_trans->commit, "%s",
1672 			    p->parsed.s) == -1)
1673 				return got_error_from_errno("asprintf");
1674 		}
1675 
1676 		if ((p = gw_trans->gw_req->fieldmap[KEY_FILE]))
1677 			gw_trans->repo_file = p->parsed.s;
1678 
1679 		if ((p = gw_trans->gw_req->fieldmap[KEY_FOLDER])) {
1680 			if (asprintf(&gw_trans->repo_folder, "%s",
1681 			    p->parsed.s) == -1)
1682 				return got_error_from_errno("asprintf");
1683 		}
1684 
1685 		if ((p = gw_trans->gw_req->fieldmap[KEY_HEADREF]))
1686 			gw_trans->headref = p->parsed.s;
1687 
1688 		error = gw_init_gw_dir(&gw_trans->gw_dir, gw_trans->repo_name);
1689 		if (error)
1690 			return error;
1691 
1692 		gw_trans->error = gw_load_got_path(gw_trans, gw_trans->gw_dir);
1693 	} else
1694 		gw_trans->action = GW_INDEX;
1695 
1696 	if ((p = gw_trans->gw_req->fieldmap[KEY_PAGE]))
1697 		gw_trans->page = p->parsed.i;
1698 
1699 	return error;
1700 }
1701 
1702 static const struct got_error *
1703 gw_init_gw_dir(struct gw_dir **gw_dir, const char *dir)
1704 {
1705 	const struct got_error *error;
1706 
1707 	*gw_dir = malloc(sizeof(**gw_dir));
1708 	if (*gw_dir == NULL)
1709 		return got_error_from_errno("malloc");
1710 
1711 	if (asprintf(&(*gw_dir)->name, "%s", dir) == -1) {
1712 		error = got_error_from_errno("asprintf");
1713 		free(*gw_dir);
1714 		*gw_dir = NULL;
1715 		return NULL;
1716 	}
1717 
1718 	return NULL;
1719 }
1720 
1721 static const struct got_error *
1722 gw_display_open(struct gw_trans *gw_trans, enum khttp code, enum kmime mime)
1723 {
1724 	enum kcgi_err kerr;
1725 
1726 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_ALLOW], "GET");
1727 	if (kerr != KCGI_OK)
1728 		return gw_kcgi_error(kerr);
1729 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_STATUS], "%s",
1730 	    khttps[code]);
1731 	if (kerr != KCGI_OK)
1732 		return gw_kcgi_error(kerr);
1733 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_CONTENT_TYPE], "%s",
1734 	    kmimetypes[mime]);
1735 	if (kerr != KCGI_OK)
1736 		return gw_kcgi_error(kerr);
1737 	kerr = khttp_head(gw_trans->gw_req, "X-Content-Type-Options",
1738 	    "nosniff");
1739 	if (kerr != KCGI_OK)
1740 		return gw_kcgi_error(kerr);
1741 	kerr = khttp_head(gw_trans->gw_req, "X-Frame-Options", "DENY");
1742 	if (kerr != KCGI_OK)
1743 		return gw_kcgi_error(kerr);
1744 	kerr = khttp_head(gw_trans->gw_req, "X-XSS-Protection",
1745 	    "1; mode=block");
1746 	if (kerr != KCGI_OK)
1747 		return gw_kcgi_error(kerr);
1748 
1749 	/* XXX repo_file could be NULL if not present in querystring */
1750 	if (gw_trans->mime == KMIME_APP_OCTET_STREAM) {
1751 		kerr = khttp_head(gw_trans->gw_req,
1752 		    kresps[KRESP_CONTENT_DISPOSITION],
1753 		    "attachment; filename=%s", gw_trans->repo_file);
1754 		if (kerr != KCGI_OK)
1755 			return gw_kcgi_error(kerr);
1756 	}
1757 
1758 	kerr = khttp_body(gw_trans->gw_req);
1759 	return gw_kcgi_error(kerr);
1760 }
1761 
1762 static const struct got_error *
1763 gw_display_index(struct gw_trans *gw_trans)
1764 {
1765 	const struct got_error *error;
1766 	enum kcgi_err kerr;
1767 
1768 	/* catch early querystring errors */
1769 	if (gw_trans->error)
1770 		gw_trans->action = GW_ERR;
1771 
1772 	error = gw_display_open(gw_trans, KHTTP_200, gw_trans->mime);
1773 	if (error)
1774 		return error;
1775 
1776 	kerr = khtml_open(gw_trans->gw_html_req, gw_trans->gw_req, 0);
1777 	if (kerr != KCGI_OK)
1778 		return gw_kcgi_error(kerr);
1779 
1780 	if (gw_trans->action != GW_BLOB) {
1781 		kerr = khttp_template(gw_trans->gw_req, gw_trans->gw_tmpl,
1782 		    gw_query_funcs[gw_trans->action].template);
1783 		if (kerr != KCGI_OK) {
1784 			khtml_close(gw_trans->gw_html_req);
1785 			return gw_kcgi_error(kerr);
1786 		}
1787 	}
1788 
1789 	return gw_kcgi_error(khtml_close(gw_trans->gw_html_req));
1790 }
1791 
1792 static const struct got_error *
1793 gw_error(struct gw_trans *gw_trans)
1794 {
1795 	enum kcgi_err kerr;
1796 
1797 	kerr = khtml_puts(gw_trans->gw_html_req, gw_trans->error->msg);
1798 
1799 	return gw_kcgi_error(kerr);
1800 }
1801 
1802 static int
1803 gw_template(size_t key, void *arg)
1804 {
1805 	const struct got_error *error = NULL;
1806 	enum kcgi_err kerr;
1807 	struct gw_trans *gw_trans = arg;
1808 	char *img_src = NULL;
1809 
1810 	switch (key) {
1811 	case (TEMPL_HEAD):
1812 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_META,
1813 		    KATTR_NAME, "viewport",
1814 		    KATTR_CONTENT, "initial-scale=.75, user-scalable=yes",
1815 		    KATTR__MAX);
1816 		if (kerr != KCGI_OK)
1817 			return 0;
1818 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1819 		if (kerr != KCGI_OK)
1820 			return 0;
1821 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_META,
1822 		    KATTR_CHARSET, "utf-8",
1823 		    KATTR__MAX);
1824 		if (kerr != KCGI_OK)
1825 			return 0;
1826 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1827 		if (kerr != KCGI_OK)
1828 			return 0;
1829 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_META,
1830 		    KATTR_NAME, "msapplication-TileColor",
1831 		    KATTR_CONTENT, "#da532c", KATTR__MAX);
1832 		if (kerr != KCGI_OK)
1833 			return 0;
1834 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1835 		if (kerr != KCGI_OK)
1836 			return 0;
1837 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_META,
1838 		    KATTR_NAME, "theme-color",
1839 		    KATTR_CONTENT, "#ffffff", KATTR__MAX);
1840 		if (kerr != KCGI_OK)
1841 			return 0;
1842 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1843 		if (kerr != KCGI_OK)
1844 			return 0;
1845 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_LINK,
1846 		    KATTR_REL, "apple-touch-icon", KATTR_SIZES, "180x180",
1847 		    KATTR_HREF, "/apple-touch-icon.png", KATTR__MAX);
1848 		if (kerr != KCGI_OK)
1849 			return 0;
1850 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1851 		if (kerr != KCGI_OK)
1852 			return 0;
1853 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_LINK,
1854 		    KATTR_REL, "icon", KATTR_TYPE, "image/png", KATTR_SIZES,
1855 		    "32x32", KATTR_HREF, "/favicon-32x32.png", KATTR__MAX);
1856 		if (kerr != KCGI_OK)
1857 			return 0;
1858 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1859 		if (kerr != KCGI_OK)
1860 			return 0;
1861 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_LINK,
1862 		    KATTR_REL, "icon", KATTR_TYPE, "image/png", KATTR_SIZES,
1863 		    "16x16", KATTR_HREF, "/favicon-16x16.png", KATTR__MAX);
1864 		if (kerr != KCGI_OK)
1865 			return 0;
1866 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1867 		if (kerr != KCGI_OK)
1868 			return 0;
1869 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_LINK,
1870 		    KATTR_REL, "manifest", KATTR_HREF, "/site.webmanifest",
1871 		    KATTR__MAX);
1872 		if (kerr != KCGI_OK)
1873 			return 0;
1874 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1875 		if (kerr != KCGI_OK)
1876 			return 0;
1877 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_LINK,
1878 		    KATTR_REL, "mask-icon", KATTR_HREF,
1879 		    "/safari-pinned-tab.svg", KATTR__MAX);
1880 		if (kerr != KCGI_OK)
1881 			return 0;
1882 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1883 		if (kerr != KCGI_OK)
1884 			return 0;
1885 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_LINK,
1886 		    KATTR_REL, "stylesheet", KATTR_TYPE, "text/css",
1887 		    KATTR_HREF, "/gotweb.css", KATTR__MAX);
1888 		if (kerr != KCGI_OK)
1889 			return 0;
1890 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1891 		if (kerr != KCGI_OK)
1892 			return 0;
1893 		break;
1894 	case(TEMPL_HEADER):
1895 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1896 		    KATTR_ID, "got_link", KATTR__MAX);
1897 		if (kerr != KCGI_OK)
1898 			return 0;
1899 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
1900 		    KATTR_HREF,  gw_trans->gw_conf->got_logo_url,
1901 		    KATTR_TARGET, "_sotd", KATTR__MAX);
1902 		if (kerr != KCGI_OK)
1903 			return 0;
1904 		if (asprintf(&img_src, "/%s",
1905 		    gw_trans->gw_conf->got_logo) == -1)
1906 			return 0;
1907 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_IMG,
1908 		    KATTR_SRC, img_src, KATTR__MAX);
1909 		if (kerr != KCGI_OK) {
1910 			free(img_src);
1911 			return 0;
1912 		}
1913 		kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
1914 		if (kerr != KCGI_OK) {
1915 			free(img_src);
1916 			return 0;
1917 		}
1918 		break;
1919 	case (TEMPL_SITEPATH):
1920 		error = gw_output_site_link(gw_trans);
1921 		if (error)
1922 			return 0;
1923 		break;
1924 	case(TEMPL_TITLE):
1925 		if (gw_trans->gw_conf->got_site_name != NULL) {
1926 			kerr = khtml_puts(gw_trans->gw_html_req,
1927 			    gw_trans->gw_conf->got_site_name);
1928 			if (kerr != KCGI_OK)
1929 				return 0;
1930 		}
1931 		break;
1932 	case (TEMPL_SEARCH):
1933 		break;
1934 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
1935 		    "search", KATTR__MAX);
1936 		if (kerr != KCGI_OK)
1937 			return 0;
1938 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_FORM,
1939 			    KATTR_METHOD, "POST", KATTR__MAX);
1940 		if (kerr != KCGI_OK)
1941 			return 0;
1942 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_INPUT, KATTR_ID,
1943 		    "got-search", KATTR_NAME, "got-search", KATTR_SIZE, "15",
1944 		    KATTR_MAXLENGTH, "50", KATTR__MAX);
1945 		if (kerr != KCGI_OK)
1946 			return 0;
1947 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_BUTTON,
1948 		    KATTR__MAX);
1949 		if (kerr != KCGI_OK)
1950 			return 0;
1951 		kerr = khtml_puts(gw_trans->gw_html_req, "Search");
1952 		if (kerr != KCGI_OK)
1953 			return 0;
1954 		kerr = khtml_closeelem(gw_trans->gw_html_req, 4);
1955 		if (kerr != KCGI_OK)
1956 			return 0;
1957 		break;
1958 	case(TEMPL_SITEOWNER):
1959 		if (gw_trans->gw_conf->got_site_owner != NULL &&
1960 		    gw_trans->gw_conf->got_show_site_owner) {
1961 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1962 			    KATTR_ID, "site_owner_wrapper", KATTR__MAX);
1963 			if (kerr != KCGI_OK)
1964 				return 0;
1965 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1966 			    KATTR_ID, "site_owner", KATTR__MAX);
1967 			if (kerr != KCGI_OK)
1968 				return 0;
1969 			kerr = khtml_puts(gw_trans->gw_html_req,
1970 			    gw_trans->gw_conf->got_site_owner);
1971 			kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
1972 			if (kerr != KCGI_OK)
1973 				return 0;
1974 		}
1975 		break;
1976 	case(TEMPL_CONTENT):
1977 		error = gw_query_funcs[gw_trans->action].func_main(gw_trans);
1978 		if (error) {
1979 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
1980 			    KATTR_ID, "tmpl_err", KATTR__MAX);
1981 			if (kerr != KCGI_OK)
1982 				return 0;
1983 			kerr = khttp_puts(gw_trans->gw_req, "Error: ");
1984 			if (kerr != KCGI_OK)
1985 				return 0;
1986 			kerr = khttp_puts(gw_trans->gw_req, error->msg);
1987 			if (kerr != KCGI_OK)
1988 				return 0;
1989 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
1990 			if (kerr != KCGI_OK)
1991 				return 0;
1992 		}
1993 		break;
1994 	default:
1995 		return 0;
1996 	}
1997 	return 1;
1998 }
1999 
2000 static const struct got_error *
2001 gw_gen_commit_header(struct gw_trans *gw_trans, char *str1, char *str2)
2002 {
2003 	const struct got_error *error = NULL;
2004 	enum kcgi_err kerr = KCGI_OK;
2005 
2006 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2007 	    KATTR_ID, "header_commit_title", KATTR__MAX);
2008 	if (kerr != KCGI_OK)
2009 		goto done;
2010 	kerr = khtml_puts(gw_trans->gw_html_req, "Commit: ");
2011 	if (kerr != KCGI_OK)
2012 		goto done;
2013 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2014 	if (kerr != KCGI_OK)
2015 		goto done;
2016 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2017 	    KATTR_ID, "header_commit", KATTR__MAX);
2018 	if (kerr != KCGI_OK)
2019 		goto done;
2020 	kerr = khtml_puts(gw_trans->gw_html_req, str1);
2021 	if (kerr != KCGI_OK)
2022 		goto done;
2023 	kerr = khtml_puts(gw_trans->gw_html_req, " ");
2024 	if (kerr != KCGI_OK)
2025 		goto done;
2026 	if (str2 != NULL) {
2027 		kerr = khtml_puts(gw_trans->gw_html_req, "(");
2028 		if (kerr != KCGI_OK)
2029 			goto done;
2030 		kerr = khtml_puts(gw_trans->gw_html_req, str2);
2031 		if (kerr != KCGI_OK)
2032 			goto done;
2033 		kerr = khtml_puts(gw_trans->gw_html_req, ")");
2034 		if (kerr != KCGI_OK)
2035 			goto done;
2036 	}
2037 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2038 done:
2039 	if (error == NULL && kerr != KCGI_OK)
2040 		error = gw_kcgi_error(kerr);
2041 	return error;
2042 }
2043 
2044 static const struct got_error *
2045 gw_gen_diff_header(struct gw_trans *gw_trans, char *str1, char *str2)
2046 {
2047 	const struct got_error *error = NULL;
2048 	enum kcgi_err kerr = KCGI_OK;
2049 
2050 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2051 	    KATTR_ID, "header_diff_title", KATTR__MAX);
2052 	if (kerr != KCGI_OK)
2053 		goto done;
2054 	kerr = khtml_puts(gw_trans->gw_html_req, "Diff: ");
2055 	if (kerr != KCGI_OK)
2056 		goto done;
2057 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2058 	if (kerr != KCGI_OK)
2059 		goto done;
2060 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2061 	    KATTR_ID, "header_diff", KATTR__MAX);
2062 	if (kerr != KCGI_OK)
2063 		goto done;
2064 	if (str1 != NULL) {
2065 		kerr = khtml_puts(gw_trans->gw_html_req, str1);
2066 		if (kerr != KCGI_OK)
2067 			goto done;
2068 	}
2069 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_BR, KATTR__MAX);
2070 	if (kerr != KCGI_OK)
2071 		goto done;
2072 	kerr = khtml_puts(gw_trans->gw_html_req, str2);
2073 	if (kerr != KCGI_OK)
2074 		goto done;
2075 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2076 done:
2077 	if (error == NULL && kerr != KCGI_OK)
2078 		error = gw_kcgi_error(kerr);
2079 	return error;
2080 }
2081 
2082 static const struct got_error *
2083 gw_gen_age_header(struct gw_trans *gw_trans, const char *str)
2084 {
2085 	const struct got_error *error = NULL;
2086 	enum kcgi_err kerr = KCGI_OK;
2087 
2088 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2089 	    KATTR_ID, "header_age_title", KATTR__MAX);
2090 	if (kerr != KCGI_OK)
2091 		goto done;
2092 	kerr = khtml_puts(gw_trans->gw_html_req, "Date: ");
2093 	if (kerr != KCGI_OK)
2094 		goto done;
2095 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2096 	if (kerr != KCGI_OK)
2097 		goto done;
2098 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2099 	    KATTR_ID, "header_age", KATTR__MAX);
2100 	if (kerr != KCGI_OK)
2101 		goto done;
2102 	kerr = khtml_puts(gw_trans->gw_html_req, str);
2103 	if (kerr != KCGI_OK)
2104 		goto done;
2105 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2106 done:
2107 	if (error == NULL && kerr != KCGI_OK)
2108 		error = gw_kcgi_error(kerr);
2109 	return error;
2110 }
2111 
2112 static const struct got_error *
2113 gw_gen_author_header(struct gw_trans *gw_trans, const char *str)
2114 {
2115 	const struct got_error *error = NULL;
2116 	enum kcgi_err kerr;
2117 
2118 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2119 	    KATTR_ID, "header_author_title", KATTR__MAX);
2120 	if (kerr != KCGI_OK)
2121 		goto done;
2122 	kerr = khtml_puts(gw_trans->gw_html_req, "Author: ");
2123 	if (kerr != KCGI_OK)
2124 		goto done;
2125 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2126 	if (kerr != KCGI_OK)
2127 		goto done;
2128 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2129 	    KATTR_ID, "header_author", KATTR__MAX);
2130 	if (kerr != KCGI_OK)
2131 		goto done;
2132 	kerr = khtml_puts(gw_trans->gw_html_req, str);
2133 	if (kerr != KCGI_OK)
2134 		goto done;
2135 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2136 done:
2137 	if (error == NULL && kerr != KCGI_OK)
2138 		error = gw_kcgi_error(kerr);
2139 	return error;
2140 }
2141 
2142 static const struct got_error *
2143 gw_gen_committer_header(struct gw_trans *gw_trans, const char *str)
2144 {
2145 	const struct got_error *error = NULL;
2146 	enum kcgi_err kerr;
2147 
2148 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2149 	    KATTR_ID, "header_committer_title", KATTR__MAX);
2150 	if (kerr != KCGI_OK)
2151 		goto done;
2152 	kerr = khtml_puts(gw_trans->gw_html_req, "Committer: ");
2153 	if (kerr != KCGI_OK)
2154 		goto done;
2155 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2156 	if (kerr != KCGI_OK)
2157 		goto done;
2158 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2159 	    KATTR_ID, "header_committer", KATTR__MAX);
2160 	if (kerr != KCGI_OK)
2161 		goto done;
2162 	kerr = khtml_puts(gw_trans->gw_html_req, str);
2163 	if (kerr != KCGI_OK)
2164 		goto done;
2165 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2166 done:
2167 	if (error == NULL && kerr != KCGI_OK)
2168 		error = gw_kcgi_error(kerr);
2169 	return error;
2170 }
2171 
2172 static const struct got_error *
2173 gw_gen_commit_msg_header(struct gw_trans *gw_trans, char *str)
2174 {
2175 	const struct got_error *error = NULL;
2176 	enum kcgi_err kerr;
2177 
2178 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2179 	    KATTR_ID, "header_commit_msg_title", KATTR__MAX);
2180 	if (kerr != KCGI_OK)
2181 		goto done;
2182 	kerr = khtml_puts(gw_trans->gw_html_req, "Message: ");
2183 	if (kerr != KCGI_OK)
2184 		goto done;
2185 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2186 	if (kerr != KCGI_OK)
2187 		goto done;
2188 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2189 	    KATTR_ID, "header_commit_msg", KATTR__MAX);
2190 	if (kerr != KCGI_OK)
2191 		goto done;
2192 	kerr = khttp_puts(gw_trans->gw_req, str);
2193 	if (kerr != KCGI_OK)
2194 		goto done;
2195 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2196 done:
2197 	if (error == NULL && kerr != KCGI_OK)
2198 		error = gw_kcgi_error(kerr);
2199 	return error;
2200 }
2201 
2202 static const struct got_error *
2203 gw_gen_tree_header(struct gw_trans *gw_trans, char *str)
2204 {
2205 	const struct got_error *error = NULL;
2206 	enum kcgi_err kerr;
2207 
2208 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2209 	    KATTR_ID, "header_tree_title", KATTR__MAX);
2210 	if (kerr != KCGI_OK)
2211 		goto done;
2212 	kerr = khtml_puts(gw_trans->gw_html_req, "Tree: ");
2213 	if (kerr != KCGI_OK)
2214 		goto done;
2215 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2216 	if (kerr != KCGI_OK)
2217 		goto done;
2218 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2219 	    KATTR_ID, "header_tree", KATTR__MAX);
2220 	if (kerr != KCGI_OK)
2221 		goto done;
2222 	kerr = khtml_puts(gw_trans->gw_html_req, str);
2223 	if (kerr != KCGI_OK)
2224 		goto done;
2225 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2226 done:
2227 	if (error == NULL && kerr != KCGI_OK)
2228 		error = gw_kcgi_error(kerr);
2229 	return error;
2230 }
2231 
2232 static const struct got_error *
2233 gw_get_repo_description(char **description, struct gw_trans *gw_trans,
2234     char *dir)
2235 {
2236 	const struct got_error *error = NULL;
2237 	FILE *f = NULL;
2238 	char *d_file = NULL;
2239 	unsigned int len;
2240 	size_t n;
2241 
2242 	*description = NULL;
2243 	if (gw_trans->gw_conf->got_show_repo_description == 0)
2244 		return NULL;
2245 
2246 	if (asprintf(&d_file, "%s/description", dir) == -1)
2247 		return got_error_from_errno("asprintf");
2248 
2249 	f = fopen(d_file, "r");
2250 	if (f == NULL) {
2251 		if (errno == ENOENT || errno == EACCES)
2252 			return NULL;
2253 		error = got_error_from_errno2("fopen", d_file);
2254 		goto done;
2255 	}
2256 
2257 	if (fseek(f, 0, SEEK_END) == -1) {
2258 		error = got_ferror(f, GOT_ERR_IO);
2259 		goto done;
2260 	}
2261 	len = ftell(f);
2262 	if (len == -1) {
2263 		error = got_ferror(f, GOT_ERR_IO);
2264 		goto done;
2265 	}
2266 	if (fseek(f, 0, SEEK_SET) == -1) {
2267 		error = got_ferror(f, GOT_ERR_IO);
2268 		goto done;
2269 	}
2270 	*description = calloc(len + 1, sizeof(**description));
2271 	if (*description == NULL) {
2272 		error = got_error_from_errno("calloc");
2273 		goto done;
2274 	}
2275 
2276 	n = fread(*description, 1, len, f);
2277 	if (n == 0 && ferror(f))
2278 		error = got_ferror(f, GOT_ERR_IO);
2279 done:
2280 	if (f != NULL && fclose(f) == -1 && error == NULL)
2281 		error = got_error_from_errno("fclose");
2282 	free(d_file);
2283 	return error;
2284 }
2285 
2286 static const struct got_error *
2287 gw_get_time_str(char **repo_age, time_t committer_time, int ref_tm)
2288 {
2289 	struct tm tm;
2290 	time_t diff_time;
2291 	char *years = "years ago", *months = "months ago";
2292 	char *weeks = "weeks ago", *days = "days ago", *hours = "hours ago";
2293 	char *minutes = "minutes ago", *seconds = "seconds ago";
2294 	char *now = "right now";
2295 	char *s;
2296 	char datebuf[29];
2297 
2298 	*repo_age = NULL;
2299 
2300 	switch (ref_tm) {
2301 	case TM_DIFF:
2302 		diff_time = time(NULL) - committer_time;
2303 		if (diff_time > 60 * 60 * 24 * 365 * 2) {
2304 			if (asprintf(repo_age, "%lld %s",
2305 			    (diff_time / 60 / 60 / 24 / 365), years) == -1)
2306 				return got_error_from_errno("asprintf");
2307 		} else if (diff_time > 60 * 60 * 24 * (365 / 12) * 2) {
2308 			if (asprintf(repo_age, "%lld %s",
2309 			    (diff_time / 60 / 60 / 24 / (365 / 12)),
2310 			    months) == -1)
2311 				return got_error_from_errno("asprintf");
2312 		} else if (diff_time > 60 * 60 * 24 * 7 * 2) {
2313 			if (asprintf(repo_age, "%lld %s",
2314 			    (diff_time / 60 / 60 / 24 / 7), weeks) == -1)
2315 				return got_error_from_errno("asprintf");
2316 		} else if (diff_time > 60 * 60 * 24 * 2) {
2317 			if (asprintf(repo_age, "%lld %s",
2318 			    (diff_time / 60 / 60 / 24), days) == -1)
2319 				return got_error_from_errno("asprintf");
2320 		} else if (diff_time > 60 * 60 * 2) {
2321 			if (asprintf(repo_age, "%lld %s",
2322 			    (diff_time / 60 / 60), hours) == -1)
2323 				return got_error_from_errno("asprintf");
2324 		} else if (diff_time > 60 * 2) {
2325 			if (asprintf(repo_age, "%lld %s", (diff_time / 60),
2326 			    minutes) == -1)
2327 				return got_error_from_errno("asprintf");
2328 		} else if (diff_time > 2) {
2329 			if (asprintf(repo_age, "%lld %s", diff_time,
2330 			    seconds) == -1)
2331 				return got_error_from_errno("asprintf");
2332 		} else {
2333 			if (asprintf(repo_age, "%s", now) == -1)
2334 				return got_error_from_errno("asprintf");
2335 		}
2336 		break;
2337 	case TM_LONG:
2338 		if (gmtime_r(&committer_time, &tm) == NULL)
2339 			return got_error_from_errno("gmtime_r");
2340 
2341 		s = asctime_r(&tm, datebuf);
2342 		if (s == NULL)
2343 			return got_error_from_errno("asctime_r");
2344 
2345 		if (asprintf(repo_age, "%s UTC", datebuf) == -1)
2346 			return got_error_from_errno("asprintf");
2347 		break;
2348 	}
2349 	return NULL;
2350 }
2351 
2352 static const struct got_error *
2353 gw_get_repo_age(char **repo_age, struct gw_trans *gw_trans, char *dir,
2354     const char *refname, int ref_tm)
2355 {
2356 	const struct got_error *error = NULL;
2357 	struct got_repository *repo = NULL;
2358 	struct got_commit_object *commit = NULL;
2359 	struct got_reflist_head refs;
2360 	struct got_reflist_entry *re;
2361 	time_t committer_time = 0, cmp_time = 0;
2362 
2363 	*repo_age = NULL;
2364 	SIMPLEQ_INIT(&refs);
2365 
2366 	if (gw_trans->gw_conf->got_show_repo_age == 0)
2367 		return NULL;
2368 
2369 	if (gw_trans->repo)
2370 		repo = gw_trans->repo;
2371 	else {
2372 		error = got_repo_open(&repo, dir, NULL);
2373 		if (error)
2374 			return error;
2375 	}
2376 
2377 	error = got_ref_list(&refs, repo, "refs/heads",
2378 	    got_ref_cmp_by_name, NULL);
2379 	if (error)
2380 		goto done;
2381 
2382 	/*
2383 	 * Find the youngest branch tip in the repository, or the age of
2384 	 * the a specific branch tip if a name was provided by the caller.
2385 	 */
2386 	SIMPLEQ_FOREACH(re, &refs, entry) {
2387 		struct got_object_id *id = NULL;
2388 
2389 		if (refname && strcmp(got_ref_get_name(re->ref), refname) != 0)
2390 			continue;
2391 
2392 		error = got_ref_resolve(&id, repo, re->ref);
2393 		if (error)
2394 			goto done;
2395 
2396 		error = got_object_open_as_commit(&commit, repo, id);
2397 		free(id);
2398 		if (error)
2399 			goto done;
2400 
2401 		committer_time =
2402 		    got_object_commit_get_committer_time(commit);
2403 		got_object_commit_close(commit);
2404 		if (cmp_time < committer_time)
2405 			cmp_time = committer_time;
2406 
2407 		if (refname)
2408 			break;
2409 	}
2410 
2411 	if (cmp_time != 0) {
2412 		committer_time = cmp_time;
2413 		error = gw_get_time_str(repo_age, committer_time, ref_tm);
2414 	}
2415 done:
2416 	got_ref_list_free(&refs);
2417 	if (gw_trans->repo == NULL)
2418 		got_repo_close(repo);
2419 	return error;
2420 }
2421 
2422 static const struct got_error *
2423 gw_output_diff(struct gw_trans *gw_trans, struct gw_header *header)
2424 {
2425 	const struct got_error *error;
2426 	FILE *f = NULL;
2427 	struct got_object_id *id1 = NULL, *id2 = NULL;
2428 	char *label1 = NULL, *label2 = NULL, *line = NULL;
2429 	int obj_type;
2430 	size_t linesize = 0;
2431 	ssize_t linelen;
2432 	enum kcgi_err kerr = KCGI_OK;
2433 
2434 	f = got_opentemp();
2435 	if (f == NULL)
2436 		return NULL;
2437 
2438 	if (header->parent_id != NULL &&
2439 	    strncmp(header->parent_id, "/dev/null", 9) != 0) {
2440 		error = got_repo_match_object_id(&id1, &label1,
2441 			header->parent_id, GOT_OBJ_TYPE_ANY, 1, gw_trans->repo);
2442 		if (error)
2443 			goto done;
2444 	}
2445 
2446 	error = got_repo_match_object_id(&id2, &label2,
2447 	    header->commit_id, GOT_OBJ_TYPE_ANY, 1, gw_trans->repo);
2448 	if (error)
2449 		goto done;
2450 
2451 	error = got_object_get_type(&obj_type, gw_trans->repo, id2);
2452 	if (error)
2453 		goto done;
2454 	switch (obj_type) {
2455 	case GOT_OBJ_TYPE_BLOB:
2456 		error = got_diff_objects_as_blobs(id1, id2, NULL, NULL, 3, 0,
2457 		    gw_trans->repo, f);
2458 		break;
2459 	case GOT_OBJ_TYPE_TREE:
2460 		error = got_diff_objects_as_trees(id1, id2, "", "", 3, 0,
2461 		    gw_trans->repo, f);
2462 		break;
2463 	case GOT_OBJ_TYPE_COMMIT:
2464 		error = got_diff_objects_as_commits(id1, id2, 3, 0,
2465 		    gw_trans->repo, f);
2466 		break;
2467 	default:
2468 		error = got_error(GOT_ERR_OBJ_TYPE);
2469 	}
2470 	if (error)
2471 		goto done;
2472 
2473 	if (fseek(f, 0, SEEK_SET) == -1) {
2474 		error = got_ferror(f, GOT_ERR_IO);
2475 		goto done;
2476 	}
2477 
2478 	while ((linelen = getline(&line, &linesize, f)) != -1) {
2479 		error = gw_colordiff_line(gw_trans, line);
2480 		if (error)
2481 			goto done;
2482 		/* XXX: KHTML_PRETTY breaks this */
2483 		kerr = khtml_puts(gw_trans->gw_html_req, line);
2484 		if (kerr != KCGI_OK)
2485 			goto done;
2486 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2487 		if (kerr != KCGI_OK)
2488 			goto done;
2489 	}
2490 	if (linelen == -1 && ferror(f))
2491 		error = got_error_from_errno("getline");
2492 done:
2493 	if (f && fclose(f) == -1 && error == NULL)
2494 		error = got_error_from_errno("fclose");
2495 	free(line);
2496 	free(label1);
2497 	free(label2);
2498 	free(id1);
2499 	free(id2);
2500 
2501 	if (error == NULL && kerr != KCGI_OK)
2502 		error = gw_kcgi_error(kerr);
2503 	return error;
2504 }
2505 
2506 static const struct got_error *
2507 gw_get_repo_owner(char **owner, struct gw_trans *gw_trans, char *dir)
2508 {
2509 	const struct got_error *error = NULL;
2510 	struct got_repository *repo;
2511 	const char *gitconfig_owner;
2512 
2513 	*owner = NULL;
2514 
2515 	if (gw_trans->gw_conf->got_show_repo_owner == 0)
2516 		return NULL;
2517 
2518 	error = got_repo_open(&repo, dir, NULL);
2519 	if (error)
2520 		return error;
2521 	gitconfig_owner = got_repo_get_gitconfig_owner(repo);
2522 	if (gitconfig_owner) {
2523 		*owner = strdup(gitconfig_owner);
2524 		if (*owner == NULL)
2525 			error = got_error_from_errno("strdup");
2526 	}
2527 	got_repo_close(repo);
2528 	return error;
2529 }
2530 
2531 static const struct got_error *
2532 gw_get_clone_url(char **url, struct gw_trans *gw_trans, char *dir)
2533 {
2534 	const struct got_error *error = NULL;
2535 	FILE *f;
2536 	char *d_file = NULL;
2537 	unsigned int len;
2538 	size_t n;
2539 
2540 	*url = NULL;
2541 
2542 	if (asprintf(&d_file, "%s/cloneurl", dir) == -1)
2543 		return got_error_from_errno("asprintf");
2544 
2545 	f = fopen(d_file, "r");
2546 	if (f == NULL) {
2547 		if (errno != ENOENT && errno != EACCES)
2548 			error = got_error_from_errno2("fopen", d_file);
2549 		goto done;
2550 	}
2551 
2552 	if (fseek(f, 0, SEEK_END) == -1) {
2553 		error = got_ferror(f, GOT_ERR_IO);
2554 		goto done;
2555 	}
2556 	len = ftell(f);
2557 	if (len == -1) {
2558 		error = got_ferror(f, GOT_ERR_IO);
2559 		goto done;
2560 	}
2561 	if (fseek(f, 0, SEEK_SET) == -1) {
2562 		error = got_ferror(f, GOT_ERR_IO);
2563 		goto done;
2564 	}
2565 
2566 	*url = calloc(len + 1, sizeof(**url));
2567 	if (*url == NULL) {
2568 		error = got_error_from_errno("calloc");
2569 		goto done;
2570 	}
2571 
2572 	n = fread(*url, 1, len, f);
2573 	if (n == 0 && ferror(f))
2574 		error = got_ferror(f, GOT_ERR_IO);
2575 done:
2576 	if (f && fclose(f) == -1 && error == NULL)
2577 		error = got_error_from_errno("fclose");
2578 	free(d_file);
2579 	return NULL;
2580 }
2581 
2582 static const struct got_error *
2583 gw_output_repo_tags(struct gw_trans *gw_trans, struct gw_header *header,
2584     int limit, int tag_type)
2585 {
2586 	const struct got_error *error = NULL;
2587 	struct got_reflist_head refs;
2588 	struct got_reflist_entry *re;
2589 	char *age = NULL;
2590 	char *id_str = NULL, *newline, *href_commits = NULL;
2591 	char *tag_commit0 = NULL, *href_tag = NULL, *href_briefs = NULL;
2592 	struct got_tag_object *tag = NULL;
2593 	enum kcgi_err kerr = KCGI_OK;
2594 	int summary_header_displayed = 0;
2595 
2596 	SIMPLEQ_INIT(&refs);
2597 
2598 	error = got_ref_list(&refs, gw_trans->repo, "refs/tags",
2599 	    got_ref_cmp_tags, gw_trans->repo);
2600 	if (error)
2601 		goto done;
2602 
2603 	SIMPLEQ_FOREACH(re, &refs, entry) {
2604 		const char *refname;
2605 		const char *tagger;
2606 		const char *tag_commit;
2607 		time_t tagger_time;
2608 		struct got_object_id *id;
2609 		struct got_commit_object *commit = NULL;
2610 
2611 		refname = got_ref_get_name(re->ref);
2612 		if (strncmp(refname, "refs/tags/", 10) != 0)
2613 			continue;
2614 		refname += 10;
2615 
2616 		error = got_ref_resolve(&id, gw_trans->repo, re->ref);
2617 		if (error)
2618 			goto done;
2619 
2620 		error = got_object_open_as_tag(&tag, gw_trans->repo, id);
2621 		if (error) {
2622 			if (error->code != GOT_ERR_OBJ_TYPE) {
2623 				free(id);
2624 				goto done;
2625 			}
2626 			/* "lightweight" tag */
2627 			error = got_object_open_as_commit(&commit,
2628 			    gw_trans->repo, id);
2629 			if (error) {
2630 				free(id);
2631 				goto done;
2632 			}
2633 			tagger = got_object_commit_get_committer(commit);
2634 			tagger_time =
2635 			    got_object_commit_get_committer_time(commit);
2636 			error = got_object_id_str(&id_str, id);
2637 			free(id);
2638 		} else {
2639 			free(id);
2640 			tagger = got_object_tag_get_tagger(tag);
2641 			tagger_time = got_object_tag_get_tagger_time(tag);
2642 			error = got_object_id_str(&id_str,
2643 			    got_object_tag_get_object_id(tag));
2644 		}
2645 		if (error)
2646 			goto done;
2647 
2648 		if (tag_type == TAGFULL && strncmp(id_str, header->commit_id,
2649 		    strlen(id_str)) != 0)
2650 			continue;
2651 
2652 		if (commit) {
2653 			error = got_object_commit_get_logmsg(&tag_commit0,
2654 			    commit);
2655 			if (error)
2656 				goto done;
2657 			got_object_commit_close(commit);
2658 		} else {
2659 			tag_commit0 = strdup(got_object_tag_get_message(tag));
2660 			if (tag_commit0 == NULL) {
2661 				error = got_error_from_errno("strdup");
2662 				goto done;
2663 			}
2664 		}
2665 
2666 		tag_commit = tag_commit0;
2667 		while (*tag_commit == '\n')
2668 			tag_commit++;
2669 
2670 		switch (tag_type) {
2671 		case TAGBRIEF:
2672 			newline = strchr(tag_commit, '\n');
2673 			if (newline)
2674 				*newline = '\0';
2675 
2676 			if (summary_header_displayed == 0) {
2677 				kerr = khtml_attr(gw_trans->gw_html_req,
2678 				    KELEM_DIV, KATTR_ID,
2679 				    "summary_tags_title_wrapper", KATTR__MAX);
2680 				if (kerr != KCGI_OK)
2681 					goto done;
2682 				kerr = khtml_attr(gw_trans->gw_html_req,
2683 				    KELEM_DIV, KATTR_ID,
2684 				    "summary_tags_title", KATTR__MAX);
2685 				if (kerr != KCGI_OK)
2686 					goto done;
2687 				kerr = khtml_puts(gw_trans->gw_html_req,
2688 				    "Tags");
2689 				if (kerr != KCGI_OK)
2690 					goto done;
2691 				kerr = khtml_closeelem(gw_trans->gw_html_req,
2692 				    2);
2693 				if (kerr != KCGI_OK)
2694 					goto done;
2695 				kerr = khtml_attr(gw_trans->gw_html_req,
2696 				    KELEM_DIV, KATTR_ID,
2697 				    "summary_tags_content", KATTR__MAX);
2698 				if (kerr != KCGI_OK)
2699 					goto done;
2700 				summary_header_displayed = 1;
2701 			}
2702 
2703 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2704 			    KATTR_ID, "tags_wrapper", KATTR__MAX);
2705 			if (kerr != KCGI_OK)
2706 				goto done;
2707 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2708 			    KATTR_ID, "tags_age", KATTR__MAX);
2709 			if (kerr != KCGI_OK)
2710 				goto done;
2711 			error = gw_get_time_str(&age, tagger_time, TM_DIFF);
2712 			if (error)
2713 				goto done;
2714 			kerr = khtml_puts(gw_trans->gw_html_req,
2715 			    age ? age : "");
2716 			if (kerr != KCGI_OK)
2717 				goto done;
2718 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2719 			if (kerr != KCGI_OK)
2720 				goto done;
2721 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2722 			    KATTR_ID, "tags", KATTR__MAX);
2723 			if (kerr != KCGI_OK)
2724 				goto done;
2725 			kerr = khtml_puts(gw_trans->gw_html_req, refname);
2726 			if (kerr != KCGI_OK)
2727 				goto done;
2728 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2729 			if (kerr != KCGI_OK)
2730 				goto done;
2731 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2732 			    KATTR_ID, "tags_name", KATTR__MAX);
2733 			if (kerr != KCGI_OK)
2734 				goto done;
2735 			if (asprintf(&href_tag, "?path=%s&action=tag&commit=%s",
2736 			    gw_trans->repo_name, id_str) == -1) {
2737 				error = got_error_from_errno("asprintf");
2738 				goto done;
2739 			}
2740 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
2741 			    KATTR_HREF, href_tag, KATTR__MAX);
2742 			if (kerr != KCGI_OK)
2743 				goto done;
2744 			kerr = khtml_puts(gw_trans->gw_html_req, tag_commit);
2745 			if (kerr != KCGI_OK)
2746 				goto done;
2747 			kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
2748 			if (kerr != KCGI_OK)
2749 				goto done;
2750 
2751 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2752 			    KATTR_ID, "navs_wrapper", KATTR__MAX);
2753 			if (kerr != KCGI_OK)
2754 				goto done;
2755 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2756 			    KATTR_ID, "navs", KATTR__MAX);
2757 			if (kerr != KCGI_OK)
2758 				goto done;
2759 
2760 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
2761 			    KATTR_HREF, href_tag, KATTR__MAX);
2762 			if (kerr != KCGI_OK)
2763 				goto done;
2764 			kerr = khtml_puts(gw_trans->gw_html_req, "tag");
2765 			if (kerr != KCGI_OK)
2766 				goto done;
2767 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2768 			if (kerr != KCGI_OK)
2769 				goto done;
2770 
2771 			kerr = khtml_puts(gw_trans->gw_html_req, " | ");
2772 			if (kerr != KCGI_OK)
2773 				goto done;
2774 			if (asprintf(&href_briefs,
2775 			    "?path=%s&action=briefs&commit=%s",
2776 			    gw_trans->repo_name, id_str) == -1) {
2777 				error = got_error_from_errno("asprintf");
2778 				goto done;
2779 			}
2780 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
2781 			    KATTR_HREF, href_briefs, KATTR__MAX);
2782 			if (kerr != KCGI_OK)
2783 				goto done;
2784 			kerr = khtml_puts(gw_trans->gw_html_req,
2785 			    "commit briefs");
2786 			if (kerr != KCGI_OK)
2787 				goto done;
2788 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2789 			if (kerr != KCGI_OK)
2790 				goto done;
2791 
2792 			kerr = khtml_puts(gw_trans->gw_html_req, " | ");
2793 			if (kerr != KCGI_OK)
2794 				goto done;
2795 
2796 			if (asprintf(&href_commits,
2797 			    "?path=%s&action=commits&commit=%s",
2798 			    gw_trans->repo_name, id_str) == -1) {
2799 				error = got_error_from_errno("asprintf");
2800 				goto done;
2801 			}
2802 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
2803 			    KATTR_HREF, href_commits, KATTR__MAX);
2804 			if (kerr != KCGI_OK)
2805 				goto done;
2806 			kerr = khtml_puts(gw_trans->gw_html_req,
2807 			    "commits");
2808 			if (kerr != KCGI_OK)
2809 				goto done;
2810 			kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
2811 			if (kerr != KCGI_OK)
2812 				goto done;
2813 
2814 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2815 			    KATTR_ID, "dotted_line", KATTR__MAX);
2816 			if (kerr != KCGI_OK)
2817 				goto done;
2818 			kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
2819 			if (kerr != KCGI_OK)
2820 				goto done;
2821 			break;
2822 		case TAGFULL:
2823 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2824 			    KATTR_ID, "tag_info_date_title", KATTR__MAX);
2825 			if (kerr != KCGI_OK)
2826 				goto done;
2827 			kerr = khtml_puts(gw_trans->gw_html_req, "Tag Date:");
2828 			if (kerr != KCGI_OK)
2829 				goto done;
2830 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2831 			if (kerr != KCGI_OK)
2832 				goto done;
2833 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2834 			    KATTR_ID, "tag_info_date", KATTR__MAX);
2835 			if (kerr != KCGI_OK)
2836 				goto done;
2837 			error = gw_get_time_str(&age, tagger_time, TM_LONG);
2838 			if (error)
2839 				goto done;
2840 			kerr = khtml_puts(gw_trans->gw_html_req,
2841 			    age ? age : "");
2842 			if (kerr != KCGI_OK)
2843 				goto done;
2844 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2845 			if (kerr != KCGI_OK)
2846 				goto done;
2847 
2848 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2849 			    KATTR_ID, "tag_info_tagger_title", KATTR__MAX);
2850 			if (kerr != KCGI_OK)
2851 				goto done;
2852 			kerr = khtml_puts(gw_trans->gw_html_req, "Tagger:");
2853 			if (kerr != KCGI_OK)
2854 				goto done;
2855 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2856 			if (kerr != KCGI_OK)
2857 				goto done;
2858 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2859 			    KATTR_ID, "tag_info_date", KATTR__MAX);
2860 			if (kerr != KCGI_OK)
2861 				goto done;
2862 			kerr = khtml_puts(gw_trans->gw_html_req, tagger);
2863 			if (kerr != KCGI_OK)
2864 				goto done;
2865 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2866 			if (kerr != KCGI_OK)
2867 				goto done;
2868 
2869 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
2870 			    KATTR_ID, "tag_info", KATTR__MAX);
2871 			if (kerr != KCGI_OK)
2872 				goto done;
2873 			kerr = khttp_puts(gw_trans->gw_req, tag_commit);
2874 			if (kerr != KCGI_OK)
2875 				goto done;
2876 			break;
2877 		default:
2878 			break;
2879 		}
2880 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
2881 		if (kerr != KCGI_OK)
2882 			goto done;
2883 
2884 		if (limit && --limit == 0)
2885 			break;
2886 
2887 		if (tag)
2888 			got_object_tag_close(tag);
2889 		tag = NULL;
2890 		free(id_str);
2891 		id_str = NULL;
2892 		free(age);
2893 		age = NULL;
2894 		free(tag_commit0);
2895 		tag_commit0 = NULL;
2896 		free(href_tag);
2897 		href_tag = NULL;
2898 		free(href_briefs);
2899 		href_briefs = NULL;
2900 		free(href_commits);
2901 		href_commits = NULL;
2902 	}
2903 done:
2904 	if (tag)
2905 		got_object_tag_close(tag);
2906 	free(id_str);
2907 	free(age);
2908 	free(tag_commit0);
2909 	free(href_tag);
2910 	free(href_briefs);
2911 	free(href_commits);
2912 	got_ref_list_free(&refs);
2913 	if (error == NULL && kerr != KCGI_OK)
2914 		error = gw_kcgi_error(kerr);
2915 	return error;
2916 }
2917 
2918 static void
2919 gw_free_header(struct gw_header *header)
2920 {
2921 	free(header->path);
2922 	free(header->author);
2923 	free(header->committer);
2924 	free(header->refs_str);
2925 	free(header->commit_id);
2926 	free(header->parent_id);
2927 	free(header->tree_id);
2928 	free(header->commit_msg);
2929 }
2930 
2931 static struct gw_header *
2932 gw_init_header()
2933 {
2934 	struct gw_header *header;
2935 
2936 	header = malloc(sizeof(*header));
2937 	if (header == NULL)
2938 		return NULL;
2939 
2940 	header->path = NULL;
2941 	SIMPLEQ_INIT(&header->refs);
2942 
2943 	header->refs_str = NULL;
2944 	header->commit_id = NULL;
2945 	header->committer = NULL;
2946 	header->author = NULL;
2947 	header->parent_id = NULL;
2948 	header->tree_id = NULL;
2949 	header->commit_msg = NULL;
2950 
2951 	return header;
2952 }
2953 
2954 static const struct got_error *
2955 gw_get_commits(struct gw_trans * gw_trans, struct gw_header *header,
2956     int limit, struct got_object_id *id)
2957 {
2958 	const struct got_error *error = NULL;
2959 	struct got_commit_graph *graph = NULL;
2960 	struct got_commit_object *commit = NULL;
2961 
2962 	error = got_commit_graph_open(&graph, header->path, 0);
2963 	if (error)
2964 		return error;
2965 
2966 	error = got_commit_graph_iter_start(graph, id, gw_trans->repo, NULL,
2967 	    NULL);
2968 	if (error)
2969 		goto done;
2970 
2971 	for (;;) {
2972 		error = got_commit_graph_iter_next(&id, graph, gw_trans->repo,
2973 		    NULL, NULL);
2974 		if (error) {
2975 			if (error->code == GOT_ERR_ITER_COMPLETED)
2976 				error = NULL;
2977 			goto done;
2978 		}
2979 		if (id == NULL)
2980 			goto done;
2981 
2982 		error = got_object_open_as_commit(&commit, gw_trans->repo, id);
2983 			if (error)
2984 				goto done;
2985 		if (limit == 1) {
2986 			error = gw_get_commit(gw_trans, header, commit, id);
2987 			if (error)
2988 				goto done;
2989 		} else {
2990 			struct gw_header *n_header = NULL;
2991 			if ((n_header = gw_init_header()) == NULL) {
2992 				error = got_error_from_errno("malloc");
2993 				goto done;
2994 			}
2995 			error = gw_get_commit(gw_trans, n_header, commit, id);
2996 			if (error)
2997 				goto done;
2998 			TAILQ_INSERT_TAIL(&gw_trans->gw_headers, n_header,
2999 			    entry);
3000 		}
3001 		if (error || (limit && --limit == 0))
3002 			break;
3003 	}
3004 done:
3005 	if (commit != NULL)
3006 		got_object_commit_close(commit);
3007 	if (graph)
3008 		got_commit_graph_close(graph);
3009 	return error;
3010 }
3011 
3012 static const struct got_error *
3013 gw_get_commit(struct gw_trans *gw_trans, struct gw_header *header,
3014     struct got_commit_object *commit, struct got_object_id *id)
3015 {
3016 	const struct got_error *error = NULL;
3017 	struct got_reflist_entry *re;
3018 	struct got_object_id *id2 = NULL;
3019 	struct got_object_qid *parent_id;
3020 	char *commit_msg = NULL, *commit_msg0;
3021 
3022 	/*print commit*/
3023 	SIMPLEQ_FOREACH(re, &header->refs, entry) {
3024 		char *s;
3025 		const char *name;
3026 		struct got_tag_object *tag = NULL;
3027 		int cmp;
3028 
3029 		if (got_ref_is_symbolic(re->ref))
3030 			continue;
3031 
3032 		name = got_ref_get_name(re->ref);
3033 		if (strncmp(name, "refs/", 5) == 0)
3034 			name += 5;
3035 		if (strncmp(name, "got/", 4) == 0)
3036 			continue;
3037 		if (strncmp(name, "heads/", 6) == 0)
3038 			name += 6;
3039 		if (strncmp(name, "remotes/", 8) == 0)
3040 			name += 8;
3041 		if (strncmp(name, "tags/", 5) == 0) {
3042 			error = got_object_open_as_tag(&tag, gw_trans->repo,
3043 			    re->id);
3044 			if (error) {
3045 				if (error->code != GOT_ERR_OBJ_TYPE)
3046 					continue;
3047 				/*
3048 				 * Ref points at something other
3049 				 * than a tag.
3050 				 */
3051 				error = NULL;
3052 				tag = NULL;
3053 			}
3054 		}
3055 		cmp = got_object_id_cmp(tag ?
3056 		    got_object_tag_get_object_id(tag) : re->id, id);
3057 		if (tag)
3058 			got_object_tag_close(tag);
3059 		if (cmp != 0)
3060 			continue;
3061 		s = header->refs_str;
3062 		if (asprintf(&header->refs_str, "%s%s%s", s ? s : "",
3063 		    s ? ", " : "", name) == -1) {
3064 			error = got_error_from_errno("asprintf");
3065 			free(s);
3066 			header->refs_str = NULL;
3067 			return error;
3068 		}
3069 		free(s);
3070 	}
3071 
3072 	error = got_object_id_str(&header->commit_id, id);
3073 	if (error)
3074 		return error;
3075 
3076 	error = got_object_id_str(&header->tree_id,
3077 	    got_object_commit_get_tree_id(commit));
3078 	if (error)
3079 		return error;
3080 
3081 	if (gw_trans->action == GW_DIFF) {
3082 		parent_id = SIMPLEQ_FIRST(
3083 		    got_object_commit_get_parent_ids(commit));
3084 		if (parent_id != NULL) {
3085 			id2 = got_object_id_dup(parent_id->id);
3086 			free (parent_id);
3087 			error = got_object_id_str(&header->parent_id, id2);
3088 			if (error)
3089 				return error;
3090 			free(id2);
3091 		} else {
3092 			header->parent_id = strdup("/dev/null");
3093 			if (header->parent_id == NULL) {
3094 				error = got_error_from_errno("strdup");
3095 				return error;
3096 			}
3097 		}
3098 	}
3099 
3100 	header->committer_time =
3101 	    got_object_commit_get_committer_time(commit);
3102 
3103 	header->author =
3104 	    strdup(got_object_commit_get_author(commit));
3105 	if (header->author == NULL) {
3106 		error = got_error_from_errno("strdup");
3107 		return error;
3108 	}
3109 	header->committer =
3110 	    strdup(got_object_commit_get_committer(commit));
3111 	if (header->committer == NULL) {
3112 		error = got_error_from_errno("strdup");
3113 		return error;
3114 	}
3115 	error = got_object_commit_get_logmsg(&commit_msg0, commit);
3116 	if (error)
3117 		return error;
3118 
3119 	commit_msg = commit_msg0;
3120 	while (*commit_msg == '\n')
3121 		commit_msg++;
3122 
3123 	header->commit_msg = strdup(commit_msg);
3124 	if (header->commit_msg == NULL)
3125 		error = got_error_from_errno("strdup");
3126 	free(commit_msg0);
3127 	return error;
3128 }
3129 
3130 static const struct got_error *
3131 gw_get_header(struct gw_trans *gw_trans, struct gw_header *header, int limit)
3132 {
3133 	const struct got_error *error = NULL;
3134 	char *in_repo_path = NULL;
3135 	struct got_object_id *id = NULL;
3136 
3137 	error = got_repo_open(&gw_trans->repo, gw_trans->repo_path, NULL);
3138 	if (error)
3139 		return error;
3140 
3141 	if (gw_trans->commit == NULL) {
3142 		struct got_reference *head_ref;
3143 		error = got_ref_open(&head_ref, gw_trans->repo,
3144 		    gw_trans->headref, 0);
3145 		if (error)
3146 			return error;
3147 
3148 		error = got_ref_resolve(&id, gw_trans->repo, head_ref);
3149 		got_ref_close(head_ref);
3150 		if (error)
3151 			return error;
3152 	} else {
3153 		struct got_reference *ref;
3154 		error = got_ref_open(&ref, gw_trans->repo, gw_trans->commit, 0);
3155 		if (error == NULL) {
3156 			int obj_type;
3157 			error = got_ref_resolve(&id, gw_trans->repo, ref);
3158 			got_ref_close(ref);
3159 			if (error)
3160 				return error;
3161 			error = got_object_get_type(&obj_type, gw_trans->repo,
3162 			    id);
3163 			if (error)
3164 				goto done;
3165 			if (obj_type == GOT_OBJ_TYPE_TAG) {
3166 				struct got_tag_object *tag;
3167 				error = got_object_open_as_tag(&tag,
3168 				    gw_trans->repo, id);
3169 				if (error)
3170 					goto done;
3171 				if (got_object_tag_get_object_type(tag) !=
3172 				    GOT_OBJ_TYPE_COMMIT) {
3173 					got_object_tag_close(tag);
3174 					error = got_error(GOT_ERR_OBJ_TYPE);
3175 					goto done;
3176 				}
3177 				free(id);
3178 				id = got_object_id_dup(
3179 				    got_object_tag_get_object_id(tag));
3180 				if (id == NULL)
3181 					error = got_error_from_errno(
3182 					    "got_object_id_dup");
3183 				got_object_tag_close(tag);
3184 				if (error)
3185 					goto done;
3186 			} else if (obj_type != GOT_OBJ_TYPE_COMMIT) {
3187 				error = got_error(GOT_ERR_OBJ_TYPE);
3188 				goto done;
3189 			}
3190 		}
3191 		error = got_repo_match_object_id_prefix(&id,
3192 			    gw_trans->commit, GOT_OBJ_TYPE_COMMIT,
3193 			    gw_trans->repo);
3194 		if (error)
3195 			goto done;
3196 	}
3197 
3198 	error = got_repo_map_path(&in_repo_path, gw_trans->repo,
3199 	    gw_trans->repo_path, 1);
3200 	if (error)
3201 		goto done;
3202 
3203 	if (in_repo_path) {
3204 		header->path = strdup(in_repo_path);
3205 		if (header->path == NULL) {
3206 			error = got_error_from_errno("strdup");
3207 			goto done;
3208 		}
3209 	}
3210 
3211 	error = got_ref_list(&header->refs, gw_trans->repo, NULL,
3212 	    got_ref_cmp_by_name, NULL);
3213 	if (error)
3214 		goto done;
3215 
3216 	error = gw_get_commits(gw_trans, header, limit, id);
3217 done:
3218 	got_ref_list_free(&header->refs);
3219 	free(id);
3220 	free(in_repo_path);
3221 	return error;
3222 }
3223 
3224 struct blame_line {
3225 	int annotated;
3226 	char *id_str;
3227 	char *committer;
3228 	char datebuf[11]; /* YYYY-MM-DD + NUL */
3229 };
3230 
3231 struct gw_blame_cb_args {
3232 	struct blame_line *lines;
3233 	int nlines;
3234 	int nlines_prec;
3235 	int lineno_cur;
3236 	off_t *line_offsets;
3237 	FILE *f;
3238 	struct got_repository *repo;
3239 	struct gw_trans *gw_trans;
3240 };
3241 
3242 static const struct got_error *
3243 gw_blame_cb(void *arg, int nlines, int lineno, struct got_object_id *id)
3244 {
3245 	const struct got_error *err = NULL;
3246 	struct gw_blame_cb_args *a = arg;
3247 	struct blame_line *bline;
3248 	char *line = NULL;
3249 	size_t linesize = 0;
3250 	struct got_commit_object *commit = NULL;
3251 	off_t offset;
3252 	struct tm tm;
3253 	time_t committer_time;
3254 	enum kcgi_err kerr = KCGI_OK;
3255 
3256 	if (nlines != a->nlines ||
3257 	    (lineno != -1 && lineno < 1) || lineno > a->nlines)
3258 		return got_error(GOT_ERR_RANGE);
3259 
3260 	if (lineno == -1)
3261 		return NULL; /* no change in this commit */
3262 
3263 	/* Annotate this line. */
3264 	bline = &a->lines[lineno - 1];
3265 	if (bline->annotated)
3266 		return NULL;
3267 	err = got_object_id_str(&bline->id_str, id);
3268 	if (err)
3269 		return err;
3270 
3271 	err = got_object_open_as_commit(&commit, a->repo, id);
3272 	if (err)
3273 		goto done;
3274 
3275 	bline->committer = strdup(got_object_commit_get_committer(commit));
3276 	if (bline->committer == NULL) {
3277 		err = got_error_from_errno("strdup");
3278 		goto done;
3279 	}
3280 
3281 	committer_time = got_object_commit_get_committer_time(commit);
3282 	if (localtime_r(&committer_time, &tm) == NULL)
3283 		return got_error_from_errno("localtime_r");
3284 	if (strftime(bline->datebuf, sizeof(bline->datebuf), "%G-%m-%d",
3285 	    &tm) >= sizeof(bline->datebuf)) {
3286 		err = got_error(GOT_ERR_NO_SPACE);
3287 		goto done;
3288 	}
3289 	bline->annotated = 1;
3290 
3291 	/* Print lines annotated so far. */
3292 	bline = &a->lines[a->lineno_cur - 1];
3293 	if (!bline->annotated)
3294 		goto done;
3295 
3296 	offset = a->line_offsets[a->lineno_cur - 1];
3297 	if (fseeko(a->f, offset, SEEK_SET) == -1) {
3298 		err = got_error_from_errno("fseeko");
3299 		goto done;
3300 	}
3301 
3302 	while (bline->annotated) {
3303 		char *smallerthan, *at, *nl, *committer;
3304 		char *lineno = NULL, *href_diff = NULL, *href_link = NULL;
3305 		size_t len;
3306 
3307 		if (getline(&line, &linesize, a->f) == -1) {
3308 			if (ferror(a->f))
3309 				err = got_error_from_errno("getline");
3310 			break;
3311 		}
3312 
3313 		committer = bline->committer;
3314 		smallerthan = strchr(committer, '<');
3315 		if (smallerthan && smallerthan[1] != '\0')
3316 			committer = smallerthan + 1;
3317 		at = strchr(committer, '@');
3318 		if (at)
3319 			*at = '\0';
3320 		len = strlen(committer);
3321 		if (len >= 9)
3322 			committer[8] = '\0';
3323 
3324 		nl = strchr(line, '\n');
3325 		if (nl)
3326 			*nl = '\0';
3327 
3328 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3329 		    "blame_wrapper", KATTR__MAX);
3330 		if (kerr != KCGI_OK)
3331 			goto err;
3332 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3333 		    "blame_number", KATTR__MAX);
3334 		if (kerr != KCGI_OK)
3335 			goto err;
3336 		if (asprintf(&lineno, "%.*d", a->nlines_prec,
3337 		    a->lineno_cur) == -1)
3338 			goto err;
3339 		kerr = khtml_puts(a->gw_trans->gw_html_req, lineno);
3340 		if (kerr != KCGI_OK)
3341 			goto err;
3342 		kerr = khtml_closeelem(a->gw_trans->gw_html_req, 1);
3343 		if (kerr != KCGI_OK)
3344 			goto err;
3345 
3346 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3347 		    "blame_hash", KATTR__MAX);
3348 		if (kerr != KCGI_OK)
3349 			goto err;
3350 		/* XXX repo_file could be NULL if not present in querystring */
3351 		if (asprintf(&href_diff,
3352 		    "?path=%s&action=diff&commit=%s&file=%s&folder=%s",
3353 		    a->gw_trans->repo_name, bline->id_str,
3354 		    a->gw_trans->repo_file, a->gw_trans->repo_folder ?
3355 		    a->gw_trans->repo_folder : "") == -1) {
3356 			err = got_error_from_errno("asprintf");
3357 			goto err;
3358 		}
3359 		if (asprintf(&href_link, "%.8s", bline->id_str) == -1) {
3360 			err = got_error_from_errno("asprintf");
3361 			goto err;
3362 		}
3363 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_A,
3364 		    KATTR_HREF, href_diff, KATTR__MAX);
3365 		if (kerr != KCGI_OK)
3366 			goto done;
3367 		kerr = khtml_puts(a->gw_trans->gw_html_req, href_link);
3368 		if (kerr != KCGI_OK)
3369 			goto err;
3370 		kerr = khtml_closeelem(a->gw_trans->gw_html_req, 2);
3371 		if (kerr != KCGI_OK)
3372 			goto err;
3373 
3374 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3375 		    "blame_date", KATTR__MAX);
3376 		if (kerr != KCGI_OK)
3377 			goto err;
3378 		kerr = khtml_puts(a->gw_trans->gw_html_req, bline->datebuf);
3379 		if (kerr != KCGI_OK)
3380 			goto err;
3381 		kerr = khtml_closeelem(a->gw_trans->gw_html_req, 1);
3382 		if (kerr != KCGI_OK)
3383 			goto err;
3384 
3385 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3386 		    "blame_author", KATTR__MAX);
3387 		if (kerr != KCGI_OK)
3388 			goto err;
3389 		kerr = khtml_puts(a->gw_trans->gw_html_req, committer);
3390 		if (kerr != KCGI_OK)
3391 			goto err;
3392 		kerr = khtml_closeelem(a->gw_trans->gw_html_req, 1);
3393 		if (kerr != KCGI_OK)
3394 			goto err;
3395 
3396 		kerr = khtml_attr(a->gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3397 		    "blame_code", KATTR__MAX);
3398 		if (kerr != KCGI_OK)
3399 			goto err;
3400 		kerr = khtml_puts(a->gw_trans->gw_html_req, line);
3401 		if (kerr != KCGI_OK)
3402 			goto err;
3403 		kerr = khtml_closeelem(a->gw_trans->gw_html_req, 1);
3404 		if (kerr != KCGI_OK)
3405 			goto err;
3406 
3407 		kerr = khtml_closeelem(a->gw_trans->gw_html_req, 1);
3408 		if (kerr != KCGI_OK)
3409 			goto err;
3410 
3411 		a->lineno_cur++;
3412 		bline = &a->lines[a->lineno_cur - 1];
3413 err:
3414 		free(lineno);
3415 		free(href_diff);
3416 		free(href_link);
3417 	}
3418 done:
3419 	if (commit)
3420 		got_object_commit_close(commit);
3421 	free(line);
3422 	if (err == NULL && kerr != KCGI_OK)
3423 		err = gw_kcgi_error(kerr);
3424 	return err;
3425 }
3426 
3427 static const struct got_error *
3428 gw_output_file_blame(struct gw_trans *gw_trans)
3429 {
3430 	const struct got_error *error = NULL;
3431 	struct got_object_id *obj_id = NULL;
3432 	struct got_object_id *commit_id = NULL;
3433 	struct got_blob_object *blob = NULL;
3434 	char *path = NULL, *in_repo_path = NULL;
3435 	struct gw_blame_cb_args bca;
3436 	int i, obj_type;
3437 	size_t filesize;
3438 
3439 	/* XXX repo_file could be NULL if not present in querystring */
3440 	if (asprintf(&path, "%s%s%s",
3441 	    gw_trans->repo_folder ? gw_trans->repo_folder : "",
3442 	    gw_trans->repo_folder ? "/" : "",
3443 	    gw_trans->repo_file) == -1) {
3444 		error = got_error_from_errno("asprintf");
3445 		goto done;
3446 	}
3447 
3448 	error = got_repo_map_path(&in_repo_path, gw_trans->repo, path, 1);
3449 	if (error)
3450 		goto done;
3451 
3452 	error = got_repo_match_object_id(&commit_id, NULL, gw_trans->commit,
3453 	    GOT_OBJ_TYPE_COMMIT, 1, gw_trans->repo);
3454 	if (error)
3455 		goto done;
3456 
3457 	error = got_object_id_by_path(&obj_id, gw_trans->repo, commit_id,
3458 	    in_repo_path);
3459 	if (error)
3460 		goto done;
3461 
3462 	if (obj_id == NULL) {
3463 		error = got_error(GOT_ERR_NO_OBJ);
3464 		goto done;
3465 	}
3466 
3467 	error = got_object_get_type(&obj_type, gw_trans->repo, obj_id);
3468 	if (error)
3469 		goto done;
3470 
3471 	if (obj_type != GOT_OBJ_TYPE_BLOB) {
3472 		error = got_error(GOT_ERR_OBJ_TYPE);
3473 		goto done;
3474 	}
3475 
3476 	error = got_object_open_as_blob(&blob, gw_trans->repo, obj_id, 8192);
3477 	if (error)
3478 		goto done;
3479 
3480 	bca.f = got_opentemp();
3481 	if (bca.f == NULL) {
3482 		error = got_error_from_errno("got_opentemp");
3483 		goto done;
3484 	}
3485 	error = got_object_blob_dump_to_file(&filesize, &bca.nlines,
3486 	    &bca.line_offsets, bca.f, blob);
3487 	if (error || bca.nlines == 0)
3488 		goto done;
3489 
3490 	/* Don't include \n at EOF in the blame line count. */
3491 	if (bca.line_offsets[bca.nlines - 1] == filesize)
3492 		bca.nlines--;
3493 
3494 	bca.lines = calloc(bca.nlines, sizeof(*bca.lines));
3495 	if (bca.lines == NULL) {
3496 		error = got_error_from_errno("calloc");
3497 		goto done;
3498 	}
3499 	bca.lineno_cur = 1;
3500 	bca.nlines_prec = 0;
3501 	i = bca.nlines;
3502 	while (i > 0) {
3503 		i /= 10;
3504 		bca.nlines_prec++;
3505 	}
3506 	bca.repo = gw_trans->repo;
3507 	bca.gw_trans = gw_trans;
3508 
3509 	error = got_blame(in_repo_path, commit_id, gw_trans->repo, gw_blame_cb,
3510 	    &bca, NULL, NULL);
3511 done:
3512 	free(bca.line_offsets);
3513 	free(in_repo_path);
3514 	free(commit_id);
3515 	free(obj_id);
3516 	free(path);
3517 
3518 	for (i = 0; i < bca.nlines; i++) {
3519 		struct blame_line *bline = &bca.lines[i];
3520 		free(bline->id_str);
3521 		free(bline->committer);
3522 	}
3523 	free(bca.lines);
3524 	if (bca.f && fclose(bca.f) == EOF && error == NULL)
3525 		error = got_error_from_errno("fclose");
3526 	if (blob)
3527 		got_object_blob_close(blob);
3528 	return error;
3529 }
3530 
3531 static const struct got_error *
3532 gw_output_blob_buf(struct gw_trans *gw_trans)
3533 {
3534 	const struct got_error *error = NULL;
3535 	struct got_object_id *obj_id = NULL;
3536 	struct got_object_id *commit_id = NULL;
3537 	struct got_blob_object *blob = NULL;
3538 	char *path = NULL, *in_repo_path = NULL;
3539 	int obj_type, set_mime = 0;
3540 	size_t len, hdrlen;
3541 	const uint8_t *buf;
3542 	enum kcgi_err kerr = KCGI_OK;
3543 
3544 	/* XXX repo_file could be NULL if not present in querystring */
3545 	if (asprintf(&path, "%s%s%s",
3546 	    gw_trans->repo_folder ? gw_trans->repo_folder : "",
3547 	    gw_trans->repo_folder ? "/" : "",
3548 	    gw_trans->repo_file) == -1) {
3549 		error = got_error_from_errno("asprintf");
3550 		goto done;
3551 	}
3552 
3553 	error = got_repo_map_path(&in_repo_path, gw_trans->repo, path, 1);
3554 	if (error)
3555 		goto done;
3556 
3557 	error = got_repo_match_object_id(&commit_id, NULL, gw_trans->commit,
3558 	    GOT_OBJ_TYPE_COMMIT, 1, gw_trans->repo);
3559 	if (error)
3560 		goto done;
3561 
3562 	error = got_object_id_by_path(&obj_id, gw_trans->repo, commit_id,
3563 	    in_repo_path);
3564 	if (error)
3565 		goto done;
3566 
3567 	if (obj_id == NULL) {
3568 		error = got_error(GOT_ERR_NO_OBJ);
3569 		goto done;
3570 	}
3571 
3572 	error = got_object_get_type(&obj_type, gw_trans->repo, obj_id);
3573 	if (error)
3574 		goto done;
3575 
3576 	if (obj_type != GOT_OBJ_TYPE_BLOB) {
3577 		error = got_error(GOT_ERR_OBJ_TYPE);
3578 		goto done;
3579 	}
3580 
3581 	error = got_object_open_as_blob(&blob, gw_trans->repo, obj_id, 8192);
3582 	if (error)
3583 		goto done;
3584 
3585 	hdrlen = got_object_blob_get_hdrlen(blob);
3586 	do {
3587 		error = got_object_blob_read_block(&len, blob);
3588 		if (error)
3589 			goto done;
3590 		buf = got_object_blob_get_read_buf(blob);
3591 
3592 		/*
3593 		 * Skip blob object header first time around,
3594 		 * which also contains a zero byte.
3595 		 */
3596 		buf += hdrlen;
3597 		if (set_mime == 0) {
3598 			if (isbinary(buf, len - hdrlen))
3599 				gw_trans->mime = KMIME_APP_OCTET_STREAM;
3600 			else
3601 				gw_trans->mime = KMIME_TEXT_PLAIN;
3602 			set_mime = 1;
3603 			error = gw_display_index(gw_trans);
3604 			if (error)
3605 				goto done;
3606 		}
3607 		khttp_write(gw_trans->gw_req, buf, len - hdrlen);
3608 		hdrlen = 0;
3609 	} while (len != 0);
3610 done:
3611 	free(in_repo_path);
3612 	free(commit_id);
3613 	free(obj_id);
3614 	free(path);
3615 	if (blob)
3616 		got_object_blob_close(blob);
3617 	if (error == NULL && kerr != KCGI_OK)
3618 		error = gw_kcgi_error(kerr);
3619 	return error;
3620 }
3621 
3622 static const struct got_error *
3623 gw_output_repo_tree(struct gw_trans *gw_trans)
3624 {
3625 	const struct got_error *error = NULL;
3626 	struct got_object_id *tree_id = NULL, *commit_id = NULL;
3627 	struct got_tree_object *tree = NULL;
3628 	char *path = NULL, *in_repo_path = NULL;
3629 	char *id_str = NULL;
3630 	char *build_folder = NULL;
3631 	char *href_blob = NULL, *href_blame = NULL;
3632 	const char *class = NULL;
3633 	int nentries, i, class_flip = 0;
3634 	enum kcgi_err kerr = KCGI_OK;
3635 
3636 	if (gw_trans->repo_folder != NULL) {
3637 		path = strdup(gw_trans->repo_folder);
3638 		if (path == NULL) {
3639 			error = got_error_from_errno("strdup");
3640 			goto done;
3641 		}
3642 	} else {
3643 		error = got_repo_map_path(&in_repo_path, gw_trans->repo,
3644 		    gw_trans->repo_path, 1);
3645 		if (error)
3646 			goto done;
3647 		free(path);
3648 		path = in_repo_path;
3649 	}
3650 
3651 	if (gw_trans->commit == NULL) {
3652 		struct got_reference *head_ref;
3653 		error = got_ref_open(&head_ref, gw_trans->repo,
3654 		    gw_trans->headref, 0);
3655 		if (error)
3656 			goto done;
3657 		error = got_ref_resolve(&commit_id, gw_trans->repo, head_ref);
3658 		if (error)
3659 			goto done;
3660 		got_ref_close(head_ref);
3661 
3662 	} else {
3663 		error = got_repo_match_object_id(&commit_id, NULL,
3664 		    gw_trans->commit, GOT_OBJ_TYPE_COMMIT, 1, gw_trans->repo);
3665 		if (error)
3666 			goto done;
3667 	}
3668 
3669 	/*
3670 	 * XXX gw_trans->commit might have already been allocated in
3671 	 * gw_parse_querystring(); could we more cleanly seperate values
3672 	 * we received as arguments from values we compute ourselves?
3673 	 */
3674 	error = got_object_id_str(&gw_trans->commit, commit_id);
3675 	if (error)
3676 		goto done;
3677 
3678 	error = got_object_id_by_path(&tree_id, gw_trans->repo, commit_id, path);
3679 	if (error)
3680 		goto done;
3681 
3682 	error = got_object_open_as_tree(&tree, gw_trans->repo, tree_id);
3683 	if (error)
3684 		goto done;
3685 
3686 	nentries = got_object_tree_get_nentries(tree);
3687 	for (i = 0; i < nentries; i++) {
3688 		struct got_tree_entry *te;
3689 		const char *modestr = "";
3690 		mode_t mode;
3691 
3692 		te = got_object_tree_get_entry(tree, i);
3693 
3694 		error = got_object_id_str(&id_str, got_tree_entry_get_id(te));
3695 		if (error)
3696 			goto done;
3697 
3698 		mode = got_tree_entry_get_mode(te);
3699 		if (got_object_tree_entry_is_submodule(te))
3700 			modestr = "$";
3701 		else if (S_ISLNK(mode))
3702 			modestr = "@";
3703 		else if (S_ISDIR(mode))
3704 			modestr = "/";
3705 		else if (mode & S_IXUSR)
3706 			modestr = "*";
3707 
3708 		if (class_flip == 0) {
3709 			class = "back_lightgray";
3710 			class_flip = 1;
3711 		} else {
3712 			class = "back_white";
3713 			class_flip = 0;
3714 		}
3715 
3716 		if (S_ISDIR(mode)) {
3717 			if (asprintf(&build_folder, "%s/%s",
3718 			    gw_trans->repo_folder ? gw_trans->repo_folder : "",
3719 			    got_tree_entry_get_name(te)) == -1) {
3720 				error = got_error_from_errno("asprintf");
3721 				goto done;
3722 			}
3723 			if (asprintf(&href_blob,
3724 			    "?path=%s&action=%s&commit=%s&folder=%s",
3725 			    gw_trans->repo_name, gw_get_action_name(gw_trans),
3726 			    gw_trans->commit, build_folder) == -1) {
3727 				error = got_error_from_errno("asprintf");
3728 				goto done;
3729 			}
3730 
3731 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3732 			    KATTR_ID, "tree_wrapper", KATTR__MAX);
3733 			if (kerr != KCGI_OK)
3734 				goto done;
3735 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3736 			    KATTR_ID, "tree_line", KATTR_CLASS, class,
3737 			    KATTR__MAX);
3738 			if (kerr != KCGI_OK)
3739 				goto done;
3740 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
3741 			    KATTR_HREF, href_blob, KATTR_CLASS,
3742 			    "diff_directory", KATTR__MAX);
3743 			if (kerr != KCGI_OK)
3744 				goto done;
3745 			kerr = khtml_puts(gw_trans->gw_html_req,
3746 			    got_tree_entry_get_name(te));
3747 			if (kerr != KCGI_OK)
3748 				goto done;
3749 			kerr = khtml_puts(gw_trans->gw_html_req, modestr);
3750 			if (kerr != KCGI_OK)
3751 				goto done;
3752 			kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
3753 			if (kerr != KCGI_OK)
3754 				goto done;
3755 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3756 			    KATTR_ID, "tree_line_blank", KATTR_CLASS, class,
3757 			    KATTR__MAX);
3758 			if (kerr != KCGI_OK)
3759 				goto done;
3760 			kerr = khtml_entity(gw_trans->gw_html_req,
3761 			    KENTITY_nbsp);
3762 			if (kerr != KCGI_OK)
3763 				goto done;
3764 			kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
3765 			if (kerr != KCGI_OK)
3766 				goto done;
3767 		} else {
3768 			if (asprintf(&href_blob,
3769 			    "?path=%s&action=%s&commit=%s&file=%s&folder=%s",
3770 			    gw_trans->repo_name, "blob", gw_trans->commit,
3771 			    got_tree_entry_get_name(te),
3772 			    gw_trans->repo_folder ?
3773 			    gw_trans->repo_folder : "") == -1) {
3774 				error = got_error_from_errno("asprintf");
3775 				goto done;
3776 			}
3777 			if (asprintf(&href_blame,
3778 			    "?path=%s&action=%s&commit=%s&file=%s&folder=%s",
3779 			    gw_trans->repo_name, "blame", gw_trans->commit,
3780 			    got_tree_entry_get_name(te),
3781 			    gw_trans->repo_folder ?
3782 			    gw_trans->repo_folder : "") == -1) {
3783 				error = got_error_from_errno("asprintf");
3784 				goto done;
3785 			}
3786 
3787 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3788 			    KATTR_ID, "tree_wrapper", KATTR__MAX);
3789 			if (kerr != KCGI_OK)
3790 				goto done;
3791 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3792 			    KATTR_ID, "tree_line", KATTR_CLASS, class,
3793 			    KATTR__MAX);
3794 			if (kerr != KCGI_OK)
3795 				goto done;
3796 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
3797 			    KATTR_HREF, href_blob, KATTR__MAX);
3798 			if (kerr != KCGI_OK)
3799 				goto done;
3800 			kerr = khtml_puts(gw_trans->gw_html_req,
3801 			    got_tree_entry_get_name(te));
3802 			if (kerr != KCGI_OK)
3803 				goto done;
3804 			kerr = khtml_puts(gw_trans->gw_html_req, modestr);
3805 			if (kerr != KCGI_OK)
3806 				goto done;
3807 			kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
3808 			if (kerr != KCGI_OK)
3809 				goto done;
3810 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3811 			    KATTR_ID, "tree_line_navs", KATTR_CLASS, class,
3812 			    KATTR__MAX);
3813 			if (kerr != KCGI_OK)
3814 				goto done;
3815 
3816 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
3817 			    KATTR_HREF, href_blob, KATTR__MAX);
3818 			if (kerr != KCGI_OK)
3819 				goto done;
3820 			kerr = khtml_puts(gw_trans->gw_html_req, "blob");
3821 			if (kerr != KCGI_OK)
3822 				goto done;
3823 			kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
3824 			if (kerr != KCGI_OK)
3825 				goto done;
3826 
3827 			kerr = khtml_puts(gw_trans->gw_html_req, " | ");
3828 			if (kerr != KCGI_OK)
3829 				goto done;
3830 
3831 			kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A,
3832 			    KATTR_HREF, href_blame, KATTR__MAX);
3833 			if (kerr != KCGI_OK)
3834 				goto done;
3835 			kerr = khtml_puts(gw_trans->gw_html_req, "blame");
3836 			if (kerr != KCGI_OK)
3837 				goto done;
3838 
3839 			kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
3840 			if (kerr != KCGI_OK)
3841 				goto done;
3842 		}
3843 		free(id_str);
3844 		id_str = NULL;
3845 		free(href_blob);
3846 		href_blob = NULL;
3847 		free(build_folder);
3848 		build_folder = NULL;
3849 	}
3850 done:
3851 	if (tree)
3852 		got_object_tree_close(tree);
3853 	free(id_str);
3854 	free(href_blob);
3855 	free(href_blame);
3856 	free(in_repo_path);
3857 	free(tree_id);
3858 	free(build_folder);
3859 	if (error == NULL && kerr != KCGI_OK)
3860 		error = gw_kcgi_error(kerr);
3861 	return error;
3862 }
3863 
3864 static const struct got_error *
3865 gw_output_repo_heads(struct gw_trans *gw_trans)
3866 {
3867 	const struct got_error *error = NULL;
3868 	struct got_reflist_head refs;
3869 	struct got_reflist_entry *re;
3870 	char *age = NULL, *href_summary = NULL, *href_briefs = NULL;
3871 	char *href_commits = NULL;
3872 	enum kcgi_err kerr = KCGI_OK;
3873 
3874 	SIMPLEQ_INIT(&refs);
3875 
3876 	error = got_ref_list(&refs, gw_trans->repo, "refs/heads",
3877 	    got_ref_cmp_by_name, NULL);
3878 	if (error)
3879 		goto done;
3880 
3881 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3882 	    KATTR_ID, "summary_heads_title_wrapper", KATTR__MAX);
3883 	if (kerr != KCGI_OK)
3884 		goto done;
3885 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3886 	    KATTR_ID, "summary_heads_title", KATTR__MAX);
3887 	if (kerr != KCGI_OK)
3888 		goto done;
3889 	kerr = khtml_puts(gw_trans->gw_html_req, "Heads");
3890 	if (kerr != KCGI_OK)
3891 		goto done;
3892 	kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
3893 	if (kerr != KCGI_OK)
3894 		goto done;
3895 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3896 	    KATTR_ID, "summary_heads_content", KATTR__MAX);
3897 	if (kerr != KCGI_OK)
3898 		goto done;
3899 
3900 	SIMPLEQ_FOREACH(re, &refs, entry) {
3901 		const char *refname;
3902 
3903 		if (got_ref_is_symbolic(re->ref))
3904 			continue;
3905 
3906 		refname = got_ref_get_name(re->ref);
3907 		if (refname == NULL) {
3908 			error = got_error_from_errno("got_ref_to_str");
3909 			goto done;
3910 		}
3911 
3912 		if (strncmp(refname, "refs/heads/", 11) != 0)
3913 			continue;
3914 
3915 		error = gw_get_repo_age(&age, gw_trans, gw_trans->gw_dir->path,
3916 		    refname, TM_DIFF);
3917 		if (error)
3918 			goto done;
3919 
3920 		if (strncmp(refname, "refs/heads/", 11) == 0)
3921 			refname += 11;
3922 
3923 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3924 		    KATTR_ID, "heads_wrapper", KATTR__MAX);
3925 		if (kerr != KCGI_OK)
3926 			goto done;
3927 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3928 		    KATTR_ID, "heads_age", KATTR__MAX);
3929 		if (kerr != KCGI_OK)
3930 			goto done;
3931 		kerr = khtml_puts(gw_trans->gw_html_req, age ? age : "");
3932 		if (kerr != KCGI_OK)
3933 			goto done;
3934 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
3935 		if (kerr != KCGI_OK)
3936 			goto done;
3937 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3938 		    KATTR_ID, "heads_space", KATTR__MAX);
3939 		if (kerr != KCGI_OK)
3940 			goto done;
3941 		kerr = khtml_entity(gw_trans->gw_html_req, KENTITY_nbsp);
3942 		if (kerr != KCGI_OK)
3943 			goto done;
3944 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
3945 		if (kerr != KCGI_OK)
3946 			goto done;
3947 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV,
3948 		    KATTR_ID, "head", KATTR__MAX);
3949 		if (kerr != KCGI_OK)
3950 			goto done;
3951 		if (asprintf(&href_summary,
3952 		    "?path=%s&action=summary&headref=%s",
3953 		    gw_trans->repo_name, refname) == -1) {
3954 			error = got_error_from_errno("asprintf");
3955 			goto done;
3956 		}
3957 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
3958 		    href_summary, KATTR__MAX);
3959 		kerr = khtml_puts(gw_trans->gw_html_req, refname);
3960 		if (kerr != KCGI_OK)
3961 			goto done;
3962 		kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
3963 		if (kerr != KCGI_OK)
3964 			goto done;
3965 
3966 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3967 		    "navs_wrapper", KATTR__MAX);
3968 		if (kerr != KCGI_OK)
3969 			goto done;
3970 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
3971 		    "navs", KATTR__MAX);
3972 		if (kerr != KCGI_OK)
3973 			goto done;
3974 
3975 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
3976 		    href_summary, KATTR__MAX);
3977 		if (kerr != KCGI_OK)
3978 			goto done;
3979 		kerr = khtml_puts(gw_trans->gw_html_req, "summary");
3980 		if (kerr != KCGI_OK)
3981 			goto done;
3982 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
3983 		if (kerr != KCGI_OK)
3984 			goto done;
3985 
3986 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
3987 		if (kerr != KCGI_OK)
3988 			goto done;
3989 		if (asprintf(&href_briefs, "?path=%s&action=briefs&headref=%s",
3990 		    gw_trans->repo_name, refname) == -1) {
3991 			error = got_error_from_errno("asprintf");
3992 			goto done;
3993 		}
3994 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
3995 		    href_briefs, KATTR__MAX);
3996 		if (kerr != KCGI_OK)
3997 			goto done;
3998 		kerr = khtml_puts(gw_trans->gw_html_req, "commit briefs");
3999 		if (kerr != KCGI_OK)
4000 			goto done;
4001 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
4002 		if (kerr != KCGI_OK)
4003 			goto done;
4004 
4005 		kerr = khtml_puts(gw_trans->gw_html_req, " | ");
4006 		if (kerr != KCGI_OK)
4007 			goto done;
4008 
4009 		if (asprintf(&href_commits,
4010 		    "?path=%s&action=commits&headref=%s",
4011 		    gw_trans->repo_name, refname) == -1) {
4012 			error = got_error_from_errno("asprintf");
4013 			goto done;
4014 		}
4015 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
4016 		    href_commits, KATTR__MAX);
4017 		if (kerr != KCGI_OK)
4018 			goto done;
4019 		kerr = khtml_puts(gw_trans->gw_html_req, "commits");
4020 		if (kerr != KCGI_OK)
4021 			goto done;
4022 		kerr = khtml_closeelem(gw_trans->gw_html_req, 3);
4023 		if (kerr != KCGI_OK)
4024 			goto done;
4025 
4026 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
4027 		    "dotted_line", KATTR__MAX);
4028 		if (kerr != KCGI_OK)
4029 			goto done;
4030 		kerr = khtml_closeelem(gw_trans->gw_html_req, 2);
4031 		if (kerr != KCGI_OK)
4032 			goto done;
4033 		free(href_summary);
4034 		href_summary = NULL;
4035 		free(href_briefs);
4036 		href_briefs = NULL;
4037 		free(href_commits);
4038 		href_commits = NULL;
4039 	}
4040 done:
4041 	got_ref_list_free(&refs);
4042 	free(href_summary);
4043 	free(href_briefs);
4044 	free(href_commits);
4045 	return error;
4046 }
4047 
4048 static const struct got_error *
4049 gw_output_site_link(struct gw_trans *gw_trans)
4050 {
4051 	const struct got_error *error = NULL;
4052 	char *href_summary = NULL;
4053 	enum kcgi_err kerr = KCGI_OK;
4054 
4055 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
4056 	    "site_link", KATTR__MAX);
4057 	if (kerr != KCGI_OK)
4058 		goto done;
4059 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF, GOTWEB,
4060 	    KATTR__MAX);
4061 	if (kerr != KCGI_OK)
4062 		goto done;
4063 	kerr = khtml_puts(gw_trans->gw_html_req,
4064 	   gw_trans->gw_conf->got_site_link);
4065 	if (kerr != KCGI_OK)
4066 		goto done;
4067 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
4068 	if (kerr != KCGI_OK)
4069 		goto done;
4070 
4071 	if (gw_trans->repo_name != NULL) {
4072 		kerr = khtml_puts(gw_trans->gw_html_req, " / ");
4073 		if (kerr != KCGI_OK)
4074 			goto done;
4075 		if (asprintf(&href_summary, "?path=%s&action=summary",
4076 		    gw_trans->repo_name) == -1)
4077 			goto done;
4078 		kerr = khtml_attr(gw_trans->gw_html_req, KELEM_A, KATTR_HREF,
4079 		    href_summary, KATTR__MAX);
4080 		if (kerr != KCGI_OK)
4081 			goto done;
4082 		kerr = khtml_puts(gw_trans->gw_html_req, gw_trans->repo_name);
4083 		if (kerr != KCGI_OK)
4084 			goto done;
4085 		kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
4086 		if (kerr != KCGI_OK)
4087 			goto done;
4088 		kerr = khtml_puts(gw_trans->gw_html_req, " / ");
4089 		if (kerr != KCGI_OK)
4090 			goto done;
4091 		kerr = khtml_puts(gw_trans->gw_html_req,
4092 		    gw_get_action_name(gw_trans));
4093 		if (kerr != KCGI_OK)
4094 			goto done;
4095 	}
4096 
4097 	kerr = khtml_closeelem(gw_trans->gw_html_req, 1);
4098 	if (kerr != KCGI_OK)
4099 		goto done;
4100 done:
4101 	free(href_summary);
4102 	return error;
4103 }
4104 
4105 static const struct got_error *
4106 gw_colordiff_line(struct gw_trans *gw_trans, char *buf)
4107 {
4108 	const struct got_error *error = NULL;
4109 	char *color = NULL;
4110 	enum kcgi_err kerr = KCGI_OK;
4111 
4112 	if (strncmp(buf, "-", 1) == 0)
4113 		color = "diff_minus";
4114 	else if (strncmp(buf, "+", 1) == 0)
4115 		color = "diff_plus";
4116 	else if (strncmp(buf, "@@", 2) == 0)
4117 		color = "diff_chunk_header";
4118 	else if (strncmp(buf, "@@", 2) == 0)
4119 		color = "diff_chunk_header";
4120 	else if (strncmp(buf, "commit +", 8) == 0)
4121 		color = "diff_meta";
4122 	else if (strncmp(buf, "commit -", 8) == 0)
4123 		color = "diff_meta";
4124 	else if (strncmp(buf, "blob +", 6) == 0)
4125 		color = "diff_meta";
4126 	else if (strncmp(buf, "blob -", 6) == 0)
4127 		color = "diff_meta";
4128 	else if (strncmp(buf, "file +", 6) == 0)
4129 		color = "diff_meta";
4130 	else if (strncmp(buf, "file -", 6) == 0)
4131 		color = "diff_meta";
4132 	else if (strncmp(buf, "from:", 5) == 0)
4133 		color = "diff_author";
4134 	else if (strncmp(buf, "via:", 4) == 0)
4135 		color = "diff_author";
4136 	else if (strncmp(buf, "date:", 5) == 0)
4137 		color = "diff_date";
4138 	kerr = khtml_attr(gw_trans->gw_html_req, KELEM_DIV, KATTR_ID,
4139 	    "diff_line", KATTR_CLASS, color ? color : "", KATTR__MAX);
4140 	if (error == NULL && kerr != KCGI_OK)
4141 		error = gw_kcgi_error(kerr);
4142 	return error;
4143 }
4144 
4145 int
4146 main(int argc, char *argv[])
4147 {
4148 	const struct got_error *error = NULL;
4149 	struct gw_trans *gw_trans;
4150 	struct gw_dir *dir = NULL, *tdir;
4151 	const char *page = "index";
4152 	int gw_malloc = 1;
4153 	enum kcgi_err kerr;
4154 
4155 	if ((gw_trans = malloc(sizeof(struct gw_trans))) == NULL)
4156 		errx(1, "malloc");
4157 
4158 	if ((gw_trans->gw_req = malloc(sizeof(struct kreq))) == NULL)
4159 		errx(1, "malloc");
4160 
4161 	if ((gw_trans->gw_html_req = malloc(sizeof(struct khtmlreq))) == NULL)
4162 		errx(1, "malloc");
4163 
4164 	if ((gw_trans->gw_tmpl = malloc(sizeof(struct ktemplate))) == NULL)
4165 		errx(1, "malloc");
4166 
4167 	kerr = khttp_parse(gw_trans->gw_req, gw_keys, KEY__ZMAX, &page, 1, 0);
4168 	if (kerr != KCGI_OK) {
4169 		error = gw_kcgi_error(kerr);
4170 		goto done;
4171 	}
4172 
4173 	if ((gw_trans->gw_conf =
4174 	    malloc(sizeof(struct gotweb_conf))) == NULL) {
4175 		gw_malloc = 0;
4176 		error = got_error_from_errno("malloc");
4177 		goto done;
4178 	}
4179 
4180 	TAILQ_INIT(&gw_trans->gw_dirs);
4181 	TAILQ_INIT(&gw_trans->gw_headers);
4182 
4183 	gw_trans->action = -1;
4184 	gw_trans->page = 0;
4185 	gw_trans->repos_total = 0;
4186 	gw_trans->repo_path = NULL;
4187 	gw_trans->commit = NULL;
4188 	gw_trans->headref = GOT_REF_HEAD;
4189 	gw_trans->mime = KMIME_TEXT_HTML;
4190 	gw_trans->gw_tmpl->key = gw_templs;
4191 	gw_trans->gw_tmpl->keysz = TEMPL__MAX;
4192 	gw_trans->gw_tmpl->arg = gw_trans;
4193 	gw_trans->gw_tmpl->cb = gw_template;
4194 	error = parse_conf(GOTWEB_CONF, gw_trans->gw_conf);
4195 	if (error)
4196 		goto done;
4197 
4198 	error = gw_parse_querystring(gw_trans);
4199 	if (error)
4200 		goto done;
4201 
4202 	if (gw_trans->action == GW_BLOB)
4203 		error = gw_blob(gw_trans);
4204 	else
4205 		error = gw_display_index(gw_trans);
4206 done:
4207 	if (gw_malloc) {
4208 		free(gw_trans->gw_conf->got_repos_path);
4209 		free(gw_trans->gw_conf->got_site_name);
4210 		free(gw_trans->gw_conf->got_site_owner);
4211 		free(gw_trans->gw_conf->got_site_link);
4212 		free(gw_trans->gw_conf->got_logo);
4213 		free(gw_trans->gw_conf->got_logo_url);
4214 		free(gw_trans->gw_conf);
4215 		free(gw_trans->commit);
4216 		free(gw_trans->repo_path);
4217 		if (gw_trans->repo)
4218 			got_repo_close(gw_trans->repo);
4219 
4220 		TAILQ_FOREACH_SAFE(dir, &gw_trans->gw_dirs, entry, tdir) {
4221 			free(dir->name);
4222 			free(dir->description);
4223 			free(dir->age);
4224 			free(dir->url);
4225 			free(dir->path);
4226 			free(dir);
4227 		}
4228 
4229 	}
4230 
4231 	khttp_free(gw_trans->gw_req);
4232 	return 0;
4233 }