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Blob

Date:: Wed Jan 29 17:48:56 2020 UTC
Message:: remove html from blob output
Actions:: History | Blame | Raw File
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 <dirent.h>
23 #include <err.h>
24 #include <errno.h>
25 #include <regex.h>
26 #include <stdarg.h>
27 #include <stdint.h>
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <string.h>
31 #include <unistd.h>
32 
33 #include <got_object.h>
34 #include <got_reference.h>
35 #include <got_repository.h>
36 #include <got_path.h>
37 #include <got_cancel.h>
38 #include <got_worktree.h>
39 #include <got_diff.h>
40 #include <got_commit_graph.h>
41 #include <got_blame.h>
42 #include <got_privsep.h>
43 #include <got_opentemp.h>
44 
45 #include <kcgi.h>
46 #include <kcgihtml.h>
47 
48 #include "buf.h"
49 #include "gotweb.h"
50 #include "gotweb_ui.h"
51 
52 #ifndef nitems
53 #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
54 #endif
55 
56 struct gw_trans {
57 	TAILQ_HEAD(headers, gw_header)	 gw_headers;
58 	TAILQ_HEAD(dirs, gw_dir)	 gw_dirs;
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 	char			*repo_name;
65 	char			*repo_path;
66 	char			*commit;
67 	char			*repo_file;
68 	char			*repo_folder;
69 	char			*action_name;
70 	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_repository		*repo;
80 	struct got_reflist_head		 refs;
81 	struct got_commit_object	*commit;
82 	struct got_object_id		*id;
83 	char				*path;
84 
85 	char			*refs_str;
86 	char			*commit_id; /* id_str1 */
87 	char			*parent_id; /* id_str2 */
88 	char			*tree_id;
89 	char			*author;
90 	char			*committer;
91 	char			*commit_msg;
92 	time_t			 committer_time;
93 };
94 
95 struct gw_dir {
96 	TAILQ_ENTRY(gw_dir)	 entry;
97 	char			*name;
98 	char			*owner;
99 	char			*description;
100 	char			*url;
101 	char			*age;
102 	char			*path;
103 };
104 
105 enum gw_key {
106 	KEY_ACTION,
107 	KEY_COMMIT_ID,
108 	KEY_FILE,
109 	KEY_FOLDER,
110 	KEY_HEADREF,
111 	KEY_PAGE,
112 	KEY_PATH,
113 	KEY__ZMAX
114 };
115 
116 enum gw_tmpl {
117 	TEMPL_CONTENT,
118 	TEMPL_HEAD,
119 	TEMPL_HEADER,
120 	TEMPL_SEARCH,
121 	TEMPL_SITEPATH,
122 	TEMPL_SITEOWNER,
123 	TEMPL_TITLE,
124 	TEMPL__MAX
125 };
126 
127 enum gw_ref_tm {
128 	TM_DIFF,
129 	TM_LONG,
130 };
131 
132 enum gw_tags {
133 	TAGBRIEF,
134 	TAGFULL,
135 };
136 
137 static const char *const gw_templs[TEMPL__MAX] = {
138 	"content",
139 	"head",
140 	"header",
141 	"search",
142 	"sitepath",
143 	"siteowner",
144 	"title",
145 };
146 
147 static const struct kvalid gw_keys[KEY__ZMAX] = {
148 	{ kvalid_stringne,	"action" },
149 	{ kvalid_stringne,	"commit" },
150 	{ kvalid_stringne,	"file" },
151 	{ kvalid_stringne,	"folder" },
152 	{ kvalid_stringne,	"headref" },
153 	{ kvalid_int,		"page" },
154 	{ kvalid_stringne,	"path" },
155 };
156 
157 static struct gw_dir		*gw_init_gw_dir(char *);
158 static struct gw_header		*gw_init_header(void);
159 
160 static char			*gw_get_repo_description(struct gw_trans *,
161 				    char *);
162 static char			*gw_get_repo_owner(struct gw_trans *,
163 				    char *);
164 static char			*gw_get_time_str(time_t, int);
165 static const struct got_error	*gw_get_repo_age(char **, struct gw_trans *,
166 				    char *, char *, int);
167 static char			*gw_get_file_blame_blob(struct gw_trans *);
168 static char			*gw_get_repo_tree(struct gw_trans *);
169 static char			*gw_get_diff(struct gw_trans *,
170 				    struct gw_header *);
171 static char			*gw_get_repo_tags(struct gw_trans *,
172 				    struct gw_header *, int, int);
173 static char			*gw_get_repo_heads(struct gw_trans *);
174 static char			*gw_get_clone_url(struct gw_trans *, char *);
175 static char			*gw_get_got_link(struct gw_trans *);
176 static char			*gw_get_site_link(struct gw_trans *);
177 static char			*gw_html_escape(const char *);
178 static char			*gw_colordiff_line(char *);
179 
180 static char			*gw_gen_commit_header(char *, char*);
181 static char			*gw_gen_diff_header(char *, char*);
182 static char			*gw_gen_author_header(char *);
183 static char			*gw_gen_committer_header(char *);
184 static char			*gw_gen_age_header(char *);
185 static char			*gw_gen_commit_msg_header(char *);
186 static char			*gw_gen_tree_header(char *);
187 
188 static void			 gw_free_headers(struct gw_header *);
189 static const struct got_error*	 gw_display_open(struct gw_trans *, enum khttp,
190 				    enum kmime);
191 static const struct got_error*	 gw_display_index(struct gw_trans *);
192 static void			 gw_display_error(struct gw_trans *,
193 				    const struct got_error *);
194 
195 static int			 gw_template(size_t, void *);
196 
197 static const struct got_error*	 gw_get_header(struct gw_trans *,
198 				    struct gw_header *, int);
199 static const struct got_error*	 gw_get_commits(struct gw_trans *,
200 				    struct gw_header *, int);
201 static const struct got_error*	 gw_get_commit(struct gw_trans *,
202 				    struct gw_header *);
203 static const struct got_error*	 gw_apply_unveil(const char *, const char *);
204 static const struct got_error*	 gw_blame_cb(void *, int, int,
205 				    struct got_object_id *);
206 static const struct got_error*	 gw_load_got_paths(struct gw_trans *);
207 static const struct got_error*	 gw_load_got_path(struct gw_trans *,
208 				    struct gw_dir *);
209 static const struct got_error*	 gw_parse_querystring(struct gw_trans *);
210 
211 static const struct got_error*	 gw_blame(struct gw_trans *);
212 static const struct got_error*	 gw_blob(struct gw_trans *);
213 static const struct got_error*	 gw_diff(struct gw_trans *);
214 static const struct got_error*	 gw_index(struct gw_trans *);
215 static const struct got_error*	 gw_commits(struct gw_trans *);
216 static const struct got_error*	 gw_briefs(struct gw_trans *);
217 static const struct got_error*	 gw_summary(struct gw_trans *);
218 static const struct got_error*	 gw_tree(struct gw_trans *);
219 static const struct got_error*	 gw_tag(struct gw_trans *);
220 
221 struct gw_query_action {
222 	unsigned int		 func_id;
223 	const char		*func_name;
224 	const struct got_error	*(*func_main)(struct gw_trans *);
225 	char			*template;
226 };
227 
228 enum gw_query_actions {
229 	GW_BLAME,
230 	GW_BLOB,
231 	GW_BRIEFS,
232 	GW_COMMITS,
233 	GW_DIFF,
234 	GW_ERR,
235 	GW_INDEX,
236 	GW_SUMMARY,
237 	GW_TAG,
238 	GW_TREE,
239 };
240 
241 static struct gw_query_action gw_query_funcs[] = {
242 	{ GW_BLAME,	"blame",	gw_blame,	"gw_tmpl/blame.tmpl" },
243 	{ GW_BLOB,	"blob",		gw_blob,	"gw_tmpl/blob.tmpl" },
244 	{ GW_BRIEFS,	"briefs",	gw_briefs,	"gw_tmpl/briefs.tmpl" },
245 	{ GW_COMMITS,	"commits",	gw_commits,	"gw_tmpl/commit.tmpl" },
246 	{ GW_DIFF,	"diff",		gw_diff,	"gw_tmpl/diff.tmpl" },
247 	{ GW_ERR,	 NULL,		NULL,		"gw_tmpl/err.tmpl" },
248 	{ GW_INDEX,	"index",	gw_index,	"gw_tmpl/index.tmpl" },
249 	{ GW_SUMMARY,	"summary",	gw_summary,	"gw_tmpl/summry.tmpl" },
250 	{ GW_TAG,	"tag",		gw_tag,		"gw_tmpl/tag.tmpl" },
251 	{ GW_TREE,	"tree",		gw_tree,	"gw_tmpl/tree.tmpl" },
252 };
253 
254 static const struct got_error *
255 gw_kcgi_error(enum kcgi_err kerr)
256 {
257 	if (kerr == KCGI_OK)
258 		return NULL;
259 
260 	if (kerr == KCGI_EXIT || kerr == KCGI_HUP)
261 		return got_error(GOT_ERR_CANCELLED);
262 
263 	if (kerr == KCGI_ENOMEM)
264 		return got_error_set_errno(ENOMEM, kcgi_strerror(kerr));
265 
266 	if (kerr == KCGI_ENFILE)
267 		return got_error_set_errno(ENFILE, kcgi_strerror(kerr));
268 
269 	if (kerr == KCGI_EAGAIN)
270 		return got_error_set_errno(EAGAIN, kcgi_strerror(kerr));
271 
272 	if (kerr == KCGI_FORM)
273 		return got_error_msg(GOT_ERR_IO, kcgi_strerror(kerr));
274 
275 	return got_error_from_errno(kcgi_strerror(kerr));
276 }
277 
278 static const struct got_error *
279 gw_apply_unveil(const char *repo_path, const char *repo_file)
280 {
281 	const struct got_error *err;
282 
283 	if (repo_path && repo_file) {
284 		char *full_path;
285 		if (asprintf(&full_path, "%s/%s", repo_path, repo_file) == -1)
286 			return got_error_from_errno("asprintf unveil");
287 		if (unveil(full_path, "r") != 0)
288 			return got_error_from_errno2("unveil", full_path);
289 	}
290 
291 	if (repo_path && unveil(repo_path, "r") != 0)
292 		return got_error_from_errno2("unveil", repo_path);
293 
294 	if (unveil("/tmp", "rwc") != 0)
295 		return got_error_from_errno2("unveil", "/tmp");
296 
297 	err = got_privsep_unveil_exec_helpers();
298 	if (err != NULL)
299 		return err;
300 
301 	if (unveil(NULL, NULL) != 0)
302 		return got_error_from_errno("unveil");
303 
304 	return NULL;
305 }
306 
307 static const struct got_error *
308 gw_blame(struct gw_trans *gw_trans)
309 {
310 	const struct got_error *error = NULL;
311 	struct gw_header *header = NULL;
312 	char *blame = NULL, *blame_html = NULL, *blame_html_disp = NULL;
313 	enum kcgi_err kerr;
314 
315 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
316 	    NULL) == -1)
317 		return got_error_from_errno("pledge");
318 
319 	if ((header = gw_init_header()) == NULL)
320 		return got_error_from_errno("malloc");
321 
322 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
323 	if (error)
324 		goto done;
325 
326 	error = gw_get_header(gw_trans, header, 1);
327 	if (error)
328 		goto done;
329 
330 	blame_html = gw_get_file_blame_blob(gw_trans);
331 
332 	if (blame_html == NULL) {
333 		blame_html = strdup("");
334 		if (blame_html == NULL) {
335 			error = got_error_from_errno("strdup");
336 			goto done;
337 		}
338 	}
339 
340 	if (asprintf(&blame_html_disp, blame_header,
341 	    gw_gen_age_header(gw_get_time_str(header->committer_time, TM_LONG)),
342 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
343 	    blame_html) == -1) {
344 		error = got_error_from_errno("asprintf");
345 		goto done;
346 	}
347 
348 	if (asprintf(&blame, blame_wrapper, blame_html_disp) == -1) {
349 		error = got_error_from_errno("asprintf");
350 		goto done;
351 	}
352 
353 	kerr = khttp_puts(gw_trans->gw_req, blame);
354 	if (kerr != KCGI_OK)
355 		error = gw_kcgi_error(kerr);
356 done:
357 	got_ref_list_free(&header->refs);
358 	gw_free_headers(header);
359 	free(blame_html_disp);
360 	free(blame_html);
361 	free(blame);
362 	return error;
363 }
364 
365 static const struct got_error *
366 gw_blob(struct gw_trans *gw_trans)
367 {
368 	const struct got_error *error = NULL;
369 	struct gw_header *header = NULL;
370 	char *blob = NULL;
371 	enum kcgi_err kerr;
372 
373 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
374 	    NULL) == -1)
375 		return got_error_from_errno("pledge");
376 
377 	if ((header = gw_init_header()) == NULL)
378 		return got_error_from_errno("malloc");
379 
380 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
381 	if (error)
382 		goto done;
383 
384 	error = gw_get_header(gw_trans, header, 1);
385 	if (error)
386 		goto done;
387 
388 	blob = gw_get_file_blame_blob(gw_trans);
389 
390 	if (blob == NULL) {
391 		blob = strdup("");
392 		if (blob == NULL) {
393 			error = got_error_from_errno("strdup");
394 			goto done;
395 		}
396 	}
397 
398 	kerr = khttp_puts(gw_trans->gw_req, blob);
399 	if (kerr != KCGI_OK)
400 		error = gw_kcgi_error(kerr);
401 done:
402 	got_ref_list_free(&header->refs);
403 	gw_free_headers(header);
404 	free(blob);
405 	return error;
406 }
407 
408 static const struct got_error *
409 gw_diff(struct gw_trans *gw_trans)
410 {
411 	const struct got_error *error = NULL;
412 	struct gw_header *header = NULL;
413 	char *diff = NULL, *diff_html = NULL, *diff_html_disp = NULL;
414 	enum kcgi_err kerr;
415 
416 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
417 	    NULL) == -1)
418 		return got_error_from_errno("pledge");
419 
420 	if ((header = gw_init_header()) == NULL)
421 		return got_error_from_errno("malloc");
422 
423 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
424 	if (error)
425 		goto done;
426 
427 	error = gw_get_header(gw_trans, header, 1);
428 	if (error)
429 		goto done;
430 
431 	diff_html = gw_get_diff(gw_trans, header);
432 
433 	if (diff_html == NULL) {
434 		diff_html = strdup("");
435 		if (diff_html == NULL) {
436 			error = got_error_from_errno("strdup");
437 			goto done;
438 		}
439 	}
440 
441 	if (asprintf(&diff_html_disp, diff_header,
442 	    gw_gen_diff_header(header->parent_id, header->commit_id),
443 	    gw_gen_commit_header(header->commit_id, header->refs_str),
444 	    gw_gen_tree_header(header->tree_id),
445 	    gw_gen_author_header(header->author),
446 	    gw_gen_committer_header(header->committer),
447 	    gw_gen_age_header(gw_get_time_str(header->committer_time, TM_LONG)),
448 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
449 	    diff_html) == -1) {
450 		error = got_error_from_errno("asprintf");
451 		goto done;
452 	}
453 
454 	if (asprintf(&diff, diff_wrapper, diff_html_disp) == -1) {
455 		error = got_error_from_errno("asprintf");
456 		goto done;
457 	}
458 
459 	kerr = khttp_puts(gw_trans->gw_req, diff);
460 	if (kerr != KCGI_OK)
461 		error = gw_kcgi_error(kerr);
462 done:
463 	got_ref_list_free(&header->refs);
464 	gw_free_headers(header);
465 	free(diff_html_disp);
466 	free(diff_html);
467 	free(diff);
468 	return error;
469 }
470 
471 static const struct got_error *
472 gw_index(struct gw_trans *gw_trans)
473 {
474 	const struct got_error *error = NULL;
475 	struct gw_dir *gw_dir = NULL;
476 	char *html, *navs, *next, *prev;
477 	unsigned int prev_disp = 0, next_disp = 1, dir_c = 0;
478 	enum kcgi_err kerr;
479 
480 	if (pledge("stdio rpath proc exec sendfd unveil",
481 	    NULL) == -1) {
482 		error = got_error_from_errno("pledge");
483 		return error;
484 	}
485 
486 	error = gw_apply_unveil(gw_trans->gw_conf->got_repos_path, NULL);
487 	if (error)
488 		return error;
489 
490 	error = gw_load_got_paths(gw_trans);
491 	if (error)
492 		return error;
493 
494 	kerr = khttp_puts(gw_trans->gw_req, index_projects_header);
495 	if (kerr != KCGI_OK)
496 		return gw_kcgi_error(kerr);
497 
498 	if (TAILQ_EMPTY(&gw_trans->gw_dirs)) {
499 		if (asprintf(&html, index_projects_empty,
500 		    gw_trans->gw_conf->got_repos_path) == -1)
501 			return got_error_from_errno("asprintf");
502 		kerr = khttp_puts(gw_trans->gw_req, html);
503 		if (kerr != KCGI_OK)
504 			error = gw_kcgi_error(kerr);
505 		free(html);
506 		return error;
507 	}
508 
509 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry)
510 		dir_c++;
511 
512 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry) {
513 		if (gw_trans->page > 0 && (gw_trans->page *
514 		    gw_trans->gw_conf->got_max_repos_display) > prev_disp) {
515 			prev_disp++;
516 			continue;
517 		}
518 
519 		prev_disp++;
520 
521 		if (error)
522 			return error;
523 		if(asprintf(&navs, index_navs, gw_dir->name, gw_dir->name,
524 		    gw_dir->name, gw_dir->name) == -1)
525 			return got_error_from_errno("asprintf");
526 
527 		if (asprintf(&html, index_projects, gw_dir->name, gw_dir->name,
528 		    gw_dir->description, gw_dir->owner, gw_dir->age,
529 		    navs) == -1)
530 			return got_error_from_errno("asprintf");
531 
532 		kerr = khttp_puts(gw_trans->gw_req, html);
533 		free(navs);
534 		free(html);
535 		if (kerr != KCGI_OK)
536 			return gw_kcgi_error(kerr);
537 
538 		if (gw_trans->gw_conf->got_max_repos_display == 0)
539 			continue;
540 
541 		if (next_disp == gw_trans->gw_conf->got_max_repos_display) {
542 			kerr = khttp_puts(gw_trans->gw_req, np_wrapper_start);
543 			if (kerr != KCGI_OK)
544 				return gw_kcgi_error(kerr);
545 		} else if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
546 		    (gw_trans->page > 0) &&
547 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
548 		    prev_disp == gw_trans->repos_total)) {
549 			kerr = khttp_puts(gw_trans->gw_req, np_wrapper_start);
550 			if (kerr != KCGI_OK)
551 				return gw_kcgi_error(kerr);
552 		}
553 
554 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
555 		    (gw_trans->page > 0) &&
556 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
557 		    prev_disp == gw_trans->repos_total)) {
558 			if (asprintf(&prev, nav_prev, gw_trans->page - 1) == -1)
559 				return got_error_from_errno("asprintf");
560 			kerr = khttp_puts(gw_trans->gw_req, prev);
561 			free(prev);
562 			if (kerr != KCGI_OK)
563 				return gw_kcgi_error(kerr);
564 		}
565 
566 		kerr = khttp_puts(gw_trans->gw_req, div_end);
567 		if (kerr != KCGI_OK)
568 			return gw_kcgi_error(kerr);
569 
570 		if (gw_trans->gw_conf->got_max_repos_display > 0 &&
571 		    next_disp == gw_trans->gw_conf->got_max_repos_display &&
572 		    dir_c != (gw_trans->page + 1) *
573 		    gw_trans->gw_conf->got_max_repos_display) {
574 			if (asprintf(&next, nav_next, gw_trans->page + 1) == -1)
575 				return got_error_from_errno("calloc");
576 			kerr = khttp_puts(gw_trans->gw_req, next);
577 			free(next);
578 			if (kerr != KCGI_OK)
579 				return gw_kcgi_error(kerr);
580 			kerr = khttp_puts(gw_trans->gw_req, div_end);
581 			if (kerr != KCGI_OK)
582 				error = gw_kcgi_error(kerr);
583 			next_disp = 0;
584 			break;
585 		}
586 
587 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
588 		    (gw_trans->page > 0) &&
589 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
590 		    prev_disp == gw_trans->repos_total)) {
591 			kerr = khttp_puts(gw_trans->gw_req, div_end);
592 			if (kerr != KCGI_OK)
593 				return gw_kcgi_error(kerr);
594 		}
595 
596 		next_disp++;
597 	}
598 	return error;
599 }
600 
601 static const struct got_error *
602 gw_commits(struct gw_trans *gw_trans)
603 {
604 	const struct got_error *error = NULL;
605 	char *commits_html, *commits_navs_html;
606 	struct gw_header *header = NULL, *n_header = NULL;
607 	enum kcgi_err kerr;
608 
609 	if ((header = gw_init_header()) == NULL)
610 		return got_error_from_errno("malloc");
611 
612 	if (pledge("stdio rpath proc exec sendfd unveil",
613 	    NULL) == -1) {
614 		error = got_error_from_errno("pledge");
615 		goto done;
616 	}
617 
618 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
619 	if (error)
620 		goto done;
621 
622 	error = gw_get_header(gw_trans, header,
623 	    gw_trans->gw_conf->got_max_commits_display);
624 	if (error)
625 		goto done;
626 
627 	kerr = khttp_puts(gw_trans->gw_req, commits_wrapper);
628 	if (kerr != KCGI_OK) {
629 		error = gw_kcgi_error(kerr);
630 		goto done;
631 	}
632 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry) {
633 		if (asprintf(&commits_navs_html, commits_navs,
634 		    gw_trans->repo_name, n_header->commit_id,
635 		    gw_trans->repo_name, n_header->commit_id,
636 		    gw_trans->repo_name, n_header->commit_id) == -1) {
637 			error = got_error_from_errno("asprintf");
638 			goto done;
639 		}
640 
641 		if (asprintf(&commits_html, commits_line,
642 		    gw_gen_commit_header(n_header->commit_id,
643 		        n_header->refs_str),
644 		    gw_gen_author_header(n_header->author),
645 		    gw_gen_committer_header(n_header->committer),
646 		    gw_gen_age_header(gw_get_time_str(n_header->committer_time,
647 		        TM_LONG)), gw_html_escape(n_header->commit_msg),
648 		    commits_navs_html) == -1) {
649 			error = got_error_from_errno("asprintf");
650 			goto done;
651 		}
652 		kerr = khttp_puts(gw_trans->gw_req, commits_html);
653 		if (kerr != KCGI_OK) {
654 			error = gw_kcgi_error(kerr);
655 			goto done;
656 		}
657 	}
658 	kerr = khttp_puts(gw_trans->gw_req, div_end);
659 	if (kerr != KCGI_OK)
660 		error = gw_kcgi_error(kerr);
661 done:
662 	got_ref_list_free(&header->refs);
663 	gw_free_headers(header);
664 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry)
665 		gw_free_headers(n_header);
666 	return error;
667 }
668 
669 static const struct got_error *
670 gw_briefs(struct gw_trans *gw_trans)
671 {
672 	const struct got_error *error = NULL;
673 	char *briefs_html = NULL, *briefs_navs_html = NULL, *newline;
674 	struct gw_header *header = NULL, *n_header = NULL;
675 	enum kcgi_err kerr;
676 
677 	if ((header = gw_init_header()) == NULL)
678 		return got_error_from_errno("malloc");
679 
680 	if (pledge("stdio rpath proc exec sendfd unveil",
681 	    NULL) == -1) {
682 		error = got_error_from_errno("pledge");
683 		goto done;
684 	}
685 
686 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
687 	if (error)
688 		goto done;
689 
690 	if (gw_trans->action == GW_SUMMARY)
691 		error = gw_get_header(gw_trans, header, D_MAXSLCOMMDISP);
692 	else
693 		error = gw_get_header(gw_trans, header,
694 		    gw_trans->gw_conf->got_max_commits_display);
695 	if (error)
696 		goto done;
697 
698 	kerr = khttp_puts(gw_trans->gw_req, briefs_wrapper);
699 	if (kerr != KCGI_OK) {
700 		error = gw_kcgi_error(kerr);
701 		goto done;
702 	}
703 
704 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry) {
705 		if (asprintf(&briefs_navs_html, briefs_navs,
706 		    gw_trans->repo_name, n_header->commit_id,
707 		    gw_trans->repo_name, n_header->commit_id,
708 		    gw_trans->repo_name, n_header->commit_id) == -1) {
709 			error = got_error_from_errno("asprintf");
710 			goto done;
711 		}
712 		newline = strchr(n_header->commit_msg, '\n');
713 		if (newline)
714 			*newline = '\0';
715 		if (asprintf(&briefs_html, briefs_line,
716 		    gw_get_time_str(n_header->committer_time, TM_DIFF),
717 		    n_header->author, gw_html_escape(n_header->commit_msg),
718 		    briefs_navs_html) == -1) {
719 			error = got_error_from_errno("asprintf");
720 			goto done;
721 		}
722 		kerr = khttp_puts(gw_trans->gw_req, briefs_html);
723 		if (kerr != KCGI_OK) {
724 			error = gw_kcgi_error(kerr);
725 			goto done;
726 		}
727 	}
728 	kerr = khttp_puts(gw_trans->gw_req, div_end);
729 	if (kerr != KCGI_OK)
730 		error = gw_kcgi_error(kerr);
731 done:
732 	got_ref_list_free(&header->refs);
733 	gw_free_headers(header);
734 	TAILQ_FOREACH(n_header, &gw_trans->gw_headers, entry)
735 		gw_free_headers(n_header);
736 	return error;
737 }
738 
739 static const struct got_error *
740 gw_summary(struct gw_trans *gw_trans)
741 {
742 	const struct got_error *error = NULL;
743 	char *description_html = NULL, *repo_owner_html = NULL;
744 	char *age = NULL, *repo_age_html = NULL, *cloneurl_html = NULL;
745 	char *tags = NULL, *tags_html = NULL;
746 	char *heads = NULL, *heads_html = NULL;
747 	enum kcgi_err kerr;
748 
749 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
750 		return got_error_from_errno("pledge");
751 
752 	/* unveil is applied with gw_briefs below */
753 
754 	kerr = khttp_puts(gw_trans->gw_req, summary_wrapper);
755 	if (kerr != KCGI_OK)
756 		return gw_kcgi_error(kerr);
757 
758 	if (gw_trans->gw_conf->got_show_repo_description) {
759 		if (gw_trans->gw_dir->description != NULL &&
760 		    (strcmp(gw_trans->gw_dir->description, "") != 0)) {
761 			if (asprintf(&description_html, description,
762 			    gw_trans->gw_dir->description) == -1) {
763 				error = got_error_from_errno("asprintf");
764 				goto done;
765 			}
766 
767 			kerr = khttp_puts(gw_trans->gw_req, description_html);
768 			if (kerr != KCGI_OK) {
769 				error = gw_kcgi_error(kerr);
770 				goto done;
771 			}
772 		}
773 	}
774 
775 	if (gw_trans->gw_conf->got_show_repo_owner) {
776 		if (gw_trans->gw_dir->owner != NULL &&
777 		    (strcmp(gw_trans->gw_dir->owner, "") != 0)) {
778 			if (asprintf(&repo_owner_html, repo_owner,
779 			    gw_trans->gw_dir->owner) == -1) {
780 				error = got_error_from_errno("asprintf");
781 				goto done;
782 			}
783 
784 			kerr = khttp_puts(gw_trans->gw_req, repo_owner_html);
785 			if (kerr != KCGI_OK) {
786 				error = gw_kcgi_error(kerr);
787 				goto done;
788 			}
789 		}
790 	}
791 
792 	if (gw_trans->gw_conf->got_show_repo_age) {
793 		error = gw_get_repo_age(&age, gw_trans, gw_trans->gw_dir->path,
794 		    "refs/heads", TM_LONG);
795 		if (error)
796 			goto done;
797 		if (strcmp(age, "") != 0) {
798 			if (asprintf(&repo_age_html, last_change, age) == -1) {
799 				error = got_error_from_errno("asprintf");
800 				goto done;
801 			}
802 
803 			kerr = khttp_puts(gw_trans->gw_req, repo_age_html);
804 			if (kerr != KCGI_OK) {
805 				error = gw_kcgi_error(kerr);
806 				goto done;
807 			}
808 		}
809 	}
810 
811 	if (gw_trans->gw_conf->got_show_repo_cloneurl) {
812 		if (gw_trans->gw_dir->url != NULL &&
813 		    (strcmp(gw_trans->gw_dir->url, "") != 0)) {
814 			if (asprintf(&cloneurl_html, cloneurl,
815 			    gw_trans->gw_dir->url) == -1) {
816 				error = got_error_from_errno("asprintf");
817 				goto done;
818 			}
819 
820 			kerr = khttp_puts(gw_trans->gw_req, cloneurl_html);
821 			if (kerr != KCGI_OK) {
822 				error = gw_kcgi_error(kerr);
823 				goto done;
824 			}
825 		}
826 	}
827 	kerr = khttp_puts(gw_trans->gw_req, div_end);
828 	if (kerr != KCGI_OK) {
829 		error = gw_kcgi_error(kerr);
830 		goto done;
831 	}
832 
833 	error = gw_briefs(gw_trans);
834 	if (error)
835 		goto done;
836 
837 	tags = gw_get_repo_tags(gw_trans, NULL, D_MAXSLCOMMDISP, TAGBRIEF);
838 	heads = gw_get_repo_heads(gw_trans);
839 
840 	if (tags != NULL && strcmp(tags, "") != 0) {
841 		if (asprintf(&tags_html, summary_tags, tags) == -1) {
842 			error = got_error_from_errno("asprintf");
843 			goto done;
844 		}
845 		kerr = khttp_puts(gw_trans->gw_req, tags_html);
846 		if (kerr != KCGI_OK) {
847 			error = gw_kcgi_error(kerr);
848 			goto done;
849 		}
850 	}
851 
852 	if (heads != NULL && strcmp(heads, "") != 0) {
853 		if (asprintf(&heads_html, summary_heads, heads) == -1) {
854 			error = got_error_from_errno("asprintf");
855 			goto done;
856 		}
857 		kerr = khttp_puts(gw_trans->gw_req, heads_html);
858 		if (kerr != KCGI_OK) {
859 			error = gw_kcgi_error(kerr);
860 			goto done;
861 		}
862 	}
863 done:
864 	free(description_html);
865 	free(repo_owner_html);
866 	free(age);
867 	free(repo_age_html);
868 	free(cloneurl_html);
869 	free(tags);
870 	free(tags_html);
871 	free(heads);
872 	free(heads_html);
873 	return error;
874 }
875 
876 static const struct got_error *
877 gw_tree(struct gw_trans *gw_trans)
878 {
879 	const struct got_error *error = NULL;
880 	struct gw_header *header = NULL;
881 	char *tree = NULL, *tree_html = NULL, *tree_html_disp = NULL;
882 	enum kcgi_err kerr;
883 
884 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
885 		return got_error_from_errno("pledge");
886 
887 	if ((header = gw_init_header()) == NULL)
888 		return got_error_from_errno("malloc");
889 
890 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
891 	if (error)
892 		goto done;
893 
894 	error = gw_get_header(gw_trans, header, 1);
895 	if (error)
896 		goto done;
897 
898 	tree_html = gw_get_repo_tree(gw_trans);
899 
900 	if (tree_html == NULL) {
901 		tree_html = strdup("");
902 		if (tree_html == NULL) {
903 			error = got_error_from_errno("strdup");
904 			goto done;
905 		}
906 	}
907 
908 	if (asprintf(&tree_html_disp, tree_header,
909 	    gw_gen_age_header(gw_get_time_str(header->committer_time, TM_LONG)),
910 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
911 	    tree_html) == -1) {
912 		error = got_error_from_errno("asprintf");
913 		goto done;
914 	}
915 
916 	if (asprintf(&tree, tree_wrapper, tree_html_disp) == -1) {
917 		error = got_error_from_errno("asprintf");
918 		goto done;
919 	}
920 
921 	kerr = khttp_puts(gw_trans->gw_req, tree);
922 	if (kerr != KCGI_OK)
923 		error = gw_kcgi_error(kerr);
924 done:
925 	got_ref_list_free(&header->refs);
926 	gw_free_headers(header);
927 	free(tree_html_disp);
928 	free(tree_html);
929 	free(tree);
930 	return error;
931 }
932 
933 static const struct got_error *
934 gw_tag(struct gw_trans *gw_trans)
935 {
936 	const struct got_error *error = NULL;
937 	struct gw_header *header = NULL;
938 	char *tag = NULL, *tag_html = NULL, *tag_html_disp = NULL;
939 	enum kcgi_err kerr;
940 
941 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1)
942 		return got_error_from_errno("pledge");
943 
944 	if ((header = gw_init_header()) == NULL)
945 		return got_error_from_errno("malloc");
946 
947 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
948 	if (error)
949 		goto done;
950 
951 	error = gw_get_header(gw_trans, header, 1);
952 	if (error)
953 		goto done;
954 
955 	tag_html = gw_get_repo_tags(gw_trans, header, 1, TAGFULL);
956 	if (tag_html == NULL) {
957 		tag_html = strdup("");
958 		if (tag_html == NULL) {
959 			error = got_error_from_errno("strdup");
960 			goto done;
961 		}
962 	}
963 
964 	if (asprintf(&tag_html_disp, tag_header,
965 	    gw_gen_commit_header(header->commit_id, header->refs_str),
966 	    gw_gen_commit_msg_header(gw_html_escape(header->commit_msg)),
967 	    tag_html) == -1) {
968 		error = got_error_from_errno("asprintf");
969 		goto done;
970 	}
971 
972 	if (asprintf(&tag, tag_wrapper, tag_html_disp) == -1) {
973 		error = got_error_from_errno("asprintf");
974 		goto done;
975 	}
976 
977 	kerr = khttp_puts(gw_trans->gw_req, tag);
978 	if (kerr != KCGI_OK)
979 		error = gw_kcgi_error(kerr);
980 done:
981 	got_ref_list_free(&header->refs);
982 	gw_free_headers(header);
983 	free(tag_html_disp);
984 	free(tag_html);
985 	free(tag);
986 	return error;
987 }
988 
989 static const struct got_error *
990 gw_load_got_path(struct gw_trans *gw_trans, struct gw_dir *gw_dir)
991 {
992 	const struct got_error *error = NULL;
993 	DIR *dt;
994 	char *dir_test;
995 	int opened = 0;
996 
997 	if (asprintf(&dir_test, "%s/%s/%s",
998 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
999 	    GOTWEB_GIT_DIR) == -1)
1000 		return got_error_from_errno("asprintf");
1001 
1002 	dt = opendir(dir_test);
1003 	if (dt == NULL) {
1004 		free(dir_test);
1005 	} else {
1006 		gw_dir->path = strdup(dir_test);
1007 		opened = 1;
1008 		goto done;
1009 	}
1010 
1011 	if (asprintf(&dir_test, "%s/%s/%s",
1012 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
1013 	    GOTWEB_GOT_DIR) == -1)
1014 		return got_error_from_errno("asprintf");
1015 
1016 	dt = opendir(dir_test);
1017 	if (dt == NULL)
1018 		free(dir_test);
1019 	else {
1020 		opened = 1;
1021 		error = got_error(GOT_ERR_NOT_GIT_REPO);
1022 		goto errored;
1023 	}
1024 
1025 	if (asprintf(&dir_test, "%s/%s",
1026 	    gw_trans->gw_conf->got_repos_path, gw_dir->name) == -1)
1027 		return got_error_from_errno("asprintf");
1028 
1029 	gw_dir->path = strdup(dir_test);
1030 
1031 done:
1032 	gw_dir->description = gw_get_repo_description(gw_trans,
1033 	    gw_dir->path);
1034 	gw_dir->owner = gw_get_repo_owner(gw_trans, gw_dir->path);
1035 	error = gw_get_repo_age(&gw_dir->age, gw_trans, gw_dir->path,
1036 	    "refs/heads", TM_DIFF);
1037 	if (error)
1038 		goto errored;
1039 	gw_dir->url = gw_get_clone_url(gw_trans, gw_dir->path);
1040 
1041 errored:
1042 	free(dir_test);
1043 	if (opened)
1044 		closedir(dt);
1045 	return error;
1046 }
1047 
1048 static const struct got_error *
1049 gw_load_got_paths(struct gw_trans *gw_trans)
1050 {
1051 	const struct got_error *error = NULL;
1052 	DIR *d;
1053 	struct dirent **sd_dent;
1054 	struct gw_dir *gw_dir;
1055 	struct stat st;
1056 	unsigned int d_cnt, d_i;
1057 
1058 	d = opendir(gw_trans->gw_conf->got_repos_path);
1059 	if (d == NULL) {
1060 		error = got_error_from_errno2("opendir",
1061 		    gw_trans->gw_conf->got_repos_path);
1062 		return error;
1063 	}
1064 
1065 	d_cnt = scandir(gw_trans->gw_conf->got_repos_path, &sd_dent, NULL,
1066 	    alphasort);
1067 	if (d_cnt == -1) {
1068 		error = got_error_from_errno2("scandir",
1069 		    gw_trans->gw_conf->got_repos_path);
1070 		return error;
1071 	}
1072 
1073 	for (d_i = 0; d_i < d_cnt; d_i++) {
1074 		if (gw_trans->gw_conf->got_max_repos > 0 &&
1075 		    (d_i - 2) == gw_trans->gw_conf->got_max_repos)
1076 			break; /* account for parent and self */
1077 
1078 		if (strcmp(sd_dent[d_i]->d_name, ".") == 0 ||
1079 		    strcmp(sd_dent[d_i]->d_name, "..") == 0)
1080 			continue;
1081 
1082 		if ((gw_dir = gw_init_gw_dir(sd_dent[d_i]->d_name)) == NULL)
1083 			return got_error_from_errno("gw_dir malloc");
1084 
1085 		error = gw_load_got_path(gw_trans, gw_dir);
1086 		if (error && error->code == GOT_ERR_NOT_GIT_REPO)
1087 			continue;
1088 		else if (error)
1089 			return error;
1090 
1091 		if (lstat(gw_dir->path, &st) == 0 && S_ISDIR(st.st_mode) &&
1092 		    !got_path_dir_is_empty(gw_dir->path)) {
1093 			TAILQ_INSERT_TAIL(&gw_trans->gw_dirs, gw_dir,
1094 			    entry);
1095 			gw_trans->repos_total++;
1096 		}
1097 	}
1098 
1099 	closedir(d);
1100 	return error;
1101 }
1102 
1103 static const struct got_error *
1104 gw_parse_querystring(struct gw_trans *gw_trans)
1105 {
1106 	const struct got_error *error = NULL;
1107 	struct kpair *p;
1108 	struct gw_query_action *action = NULL;
1109 	unsigned int i;
1110 
1111 	if (gw_trans->gw_req->fieldnmap[0]) {
1112 		error = got_error_from_errno("bad parse");
1113 		return error;
1114 	} else if ((p = gw_trans->gw_req->fieldmap[KEY_PATH])) {
1115 		/* define gw_trans->repo_path */
1116 		if (asprintf(&gw_trans->repo_name, "%s", p->parsed.s) == -1)
1117 			return got_error_from_errno("asprintf");
1118 
1119 		if (asprintf(&gw_trans->repo_path, "%s/%s",
1120 		    gw_trans->gw_conf->got_repos_path, p->parsed.s) == -1)
1121 			return got_error_from_errno("asprintf");
1122 
1123 		/* get action and set function */
1124 		if ((p = gw_trans->gw_req->fieldmap[KEY_ACTION]))
1125 			for (i = 0; i < nitems(gw_query_funcs); i++) {
1126 				action = &gw_query_funcs[i];
1127 				if (action->func_name == NULL)
1128 					continue;
1129 
1130 				if (strcmp(action->func_name,
1131 				    p->parsed.s) == 0) {
1132 					gw_trans->action = i;
1133 					if (asprintf(&gw_trans->action_name,
1134 					    "%s", action->func_name) == -1)
1135 						return
1136 						    got_error_from_errno(
1137 						    "asprintf");
1138 
1139 					break;
1140 				}
1141 
1142 				action = NULL;
1143 			}
1144 
1145  		if ((p = gw_trans->gw_req->fieldmap[KEY_COMMIT_ID]))
1146 			if (asprintf(&gw_trans->commit, "%s",
1147 			    p->parsed.s) == -1)
1148 				return got_error_from_errno("asprintf");
1149 
1150 		if ((p = gw_trans->gw_req->fieldmap[KEY_FILE]))
1151 			if (asprintf(&gw_trans->repo_file, "%s",
1152 			    p->parsed.s) == -1)
1153 				return got_error_from_errno("asprintf");
1154 
1155 		if ((p = gw_trans->gw_req->fieldmap[KEY_FOLDER]))
1156 			if (asprintf(&gw_trans->repo_folder, "%s",
1157 			    p->parsed.s) == -1)
1158 				return got_error_from_errno("asprintf");
1159 
1160 		if ((p = gw_trans->gw_req->fieldmap[KEY_HEADREF]))
1161 			if (asprintf(&gw_trans->headref, "%s",
1162 			    p->parsed.s) == -1)
1163 				return got_error_from_errno("asprintf");
1164 
1165 		if (action == NULL) {
1166 			error = got_error_from_errno("invalid action");
1167 			return error;
1168 		}
1169 		if ((gw_trans->gw_dir =
1170 		    gw_init_gw_dir(gw_trans->repo_name)) == NULL)
1171 			return got_error_from_errno("gw_dir malloc");
1172 
1173 		error = gw_load_got_path(gw_trans, gw_trans->gw_dir);
1174 		if (error)
1175 			return error;
1176 	} else
1177 		gw_trans->action = GW_INDEX;
1178 
1179 	if ((p = gw_trans->gw_req->fieldmap[KEY_PAGE]))
1180 		gw_trans->page = p->parsed.i;
1181 
1182 	if (gw_trans->action == GW_BLOB)
1183 		gw_trans->mime = KMIME_TEXT_PLAIN;
1184 
1185 	return error;
1186 }
1187 
1188 static struct gw_dir *
1189 gw_init_gw_dir(char *dir)
1190 {
1191 	struct gw_dir *gw_dir;
1192 
1193 	if ((gw_dir = malloc(sizeof(*gw_dir))) == NULL)
1194 		return NULL;
1195 
1196 	if (asprintf(&gw_dir->name, "%s", dir) == -1)
1197 		return NULL;
1198 
1199 	return gw_dir;
1200 }
1201 
1202 static const struct got_error *
1203 gw_display_open(struct gw_trans *gw_trans, enum khttp code, enum kmime mime)
1204 {
1205 	enum kcgi_err kerr;
1206 
1207 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_ALLOW], "GET");
1208 	if (kerr != KCGI_OK)
1209 		return gw_kcgi_error(kerr);
1210 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_STATUS], "%s",
1211 	    khttps[code]);
1212 	if (kerr != KCGI_OK)
1213 		return gw_kcgi_error(kerr);
1214 	kerr = khttp_head(gw_trans->gw_req, kresps[KRESP_CONTENT_TYPE], "%s",
1215 	    kmimetypes[mime]);
1216 	if (kerr != KCGI_OK)
1217 		return gw_kcgi_error(kerr);
1218 	kerr = khttp_head(gw_trans->gw_req, "X-Content-Type-Options", "nosniff");
1219 	if (kerr != KCGI_OK)
1220 		return gw_kcgi_error(kerr);
1221 	kerr = khttp_head(gw_trans->gw_req, "X-Frame-Options", "DENY");
1222 	if (kerr != KCGI_OK)
1223 		return gw_kcgi_error(kerr);
1224 	kerr = khttp_head(gw_trans->gw_req, "X-XSS-Protection", "1; mode=block");
1225 	if (kerr != KCGI_OK)
1226 		return gw_kcgi_error(kerr);
1227 
1228 	kerr = khttp_body(gw_trans->gw_req);
1229 	return gw_kcgi_error(kerr);
1230 }
1231 
1232 static const struct got_error *
1233 gw_display_index(struct gw_trans *gw_trans)
1234 {
1235 	const struct got_error *error;
1236 	enum kcgi_err kerr;
1237 
1238 	error = gw_display_open(gw_trans, KHTTP_200, gw_trans->mime);
1239 	if (error)
1240 		return error;
1241 
1242 	kerr = khtml_open(gw_trans->gw_html_req, gw_trans->gw_req, 0);
1243 	if (kerr)
1244 		return gw_kcgi_error(kerr);
1245 
1246 	kerr = khttp_template(gw_trans->gw_req, gw_trans->gw_tmpl,
1247 	    gw_query_funcs[gw_trans->action].template);
1248 	if (kerr != KCGI_OK) {
1249 		khtml_close(gw_trans->gw_html_req);
1250 		return gw_kcgi_error(kerr);
1251 	}
1252 
1253 	return gw_kcgi_error(khtml_close(gw_trans->gw_html_req));
1254 }
1255 
1256 static void
1257 gw_display_error(struct gw_trans *gw_trans, const struct got_error *err)
1258 {
1259 	if (gw_display_open(gw_trans, KHTTP_200, gw_trans->mime) != NULL)
1260 		return;
1261 
1262 	if (khtml_open(gw_trans->gw_html_req, gw_trans->gw_req, 0) != KCGI_OK)
1263 		return;
1264 
1265 	khttp_puts(gw_trans->gw_req, err->msg);
1266 	khtml_close(gw_trans->gw_html_req);
1267 }
1268 
1269 static int
1270 gw_template(size_t key, void *arg)
1271 {
1272 	const struct got_error *error = NULL;
1273 	struct gw_trans *gw_trans = arg;
1274 	char *gw_got_link, *gw_site_link;
1275 	char *site_owner_name, *site_owner_name_h;
1276 
1277 	switch (key) {
1278 	case (TEMPL_HEAD):
1279 		khttp_puts(gw_trans->gw_req, head);
1280 		break;
1281 	case(TEMPL_HEADER):
1282 		gw_got_link = gw_get_got_link(gw_trans);
1283 		if (gw_got_link != NULL)
1284 			khttp_puts(gw_trans->gw_req, gw_got_link);
1285 
1286 		free(gw_got_link);
1287 		break;
1288 	case (TEMPL_SITEPATH):
1289 		gw_site_link = gw_get_site_link(gw_trans);
1290 		if (gw_site_link != NULL)
1291 			khttp_puts(gw_trans->gw_req, gw_site_link);
1292 
1293 		free(gw_site_link);
1294 		break;
1295 	case(TEMPL_TITLE):
1296 		if (gw_trans->gw_conf->got_site_name != NULL)
1297 			khtml_puts(gw_trans->gw_html_req,
1298 			    gw_trans->gw_conf->got_site_name);
1299 
1300 		break;
1301 	case (TEMPL_SEARCH):
1302 		khttp_puts(gw_trans->gw_req, search);
1303 		break;
1304 	case(TEMPL_SITEOWNER):
1305 		if (gw_trans->gw_conf->got_site_owner != NULL &&
1306 		    gw_trans->gw_conf->got_show_site_owner) {
1307 			site_owner_name =
1308 			    gw_html_escape(gw_trans->gw_conf->got_site_owner);
1309 			if (asprintf(&site_owner_name_h, site_owner,
1310 			    site_owner_name) == -1)
1311 				return 0;
1312 
1313 			khttp_puts(gw_trans->gw_req, site_owner_name_h);
1314 			free(site_owner_name);
1315 			free(site_owner_name_h);
1316 		}
1317 		break;
1318 	case(TEMPL_CONTENT):
1319 		error = gw_query_funcs[gw_trans->action].func_main(gw_trans);
1320 		if (error)
1321 			khttp_puts(gw_trans->gw_req, error->msg);
1322 		break;
1323 	default:
1324 		return 0;
1325 	}
1326 	return 1;
1327 }
1328 
1329 static char *
1330 gw_gen_commit_header(char *str1, char *str2)
1331 {
1332 	char *return_html = NULL, *ref_str = NULL;
1333 
1334 	if (strcmp(str2, "") != 0) {
1335 		if (asprintf(&ref_str, "(%s)", str2) == -1) {
1336 			return_html = strdup("");
1337 			return return_html;
1338 		}
1339 	} else
1340 		ref_str = strdup("");
1341 
1342 
1343 	if (asprintf(&return_html, header_commit_html, str1, ref_str) == -1)
1344 		return_html = strdup("");
1345 
1346 	free(ref_str);
1347 	return return_html;
1348 }
1349 
1350 static char *
1351 gw_gen_diff_header(char *str1, char *str2)
1352 {
1353 	char *return_html = NULL;
1354 
1355 	if (asprintf(&return_html, header_diff_html, str1, str2) == -1)
1356 		return_html = strdup("");
1357 
1358 	return return_html;
1359 }
1360 
1361 static char *
1362 gw_gen_author_header(char *str)
1363 {
1364 	char *return_html = NULL;
1365 
1366 	if (asprintf(&return_html, header_author_html, str) == -1)
1367 		return_html = strdup("");
1368 
1369 	return return_html;
1370 }
1371 
1372 static char *
1373 gw_gen_committer_header(char *str)
1374 {
1375 	char *return_html = NULL;
1376 
1377 	if (asprintf(&return_html, header_committer_html, str) == -1)
1378 		return_html = strdup("");
1379 
1380 	return return_html;
1381 }
1382 
1383 static char *
1384 gw_gen_age_header(char *str)
1385 {
1386 	char *return_html = NULL;
1387 
1388 	if (asprintf(&return_html, header_age_html, str) == -1)
1389 		return_html = strdup("");
1390 
1391 	return return_html;
1392 }
1393 
1394 static char *
1395 gw_gen_commit_msg_header(char *str)
1396 {
1397 	char *return_html = NULL;
1398 
1399 	if (asprintf(&return_html, header_commit_msg_html, str) == -1)
1400 		return_html = strdup("");
1401 
1402 	return return_html;
1403 }
1404 
1405 static char *
1406 gw_gen_tree_header(char *str)
1407 {
1408 	char *return_html = NULL;
1409 
1410 	if (asprintf(&return_html, header_tree_html, str) == -1)
1411 		return_html = strdup("");
1412 
1413 	return return_html;
1414 }
1415 
1416 static char *
1417 gw_get_repo_description(struct gw_trans *gw_trans, char *dir)
1418 {
1419 	FILE *f;
1420 	char *description = NULL, *d_file = NULL;
1421 	unsigned int len;
1422 
1423 	if (gw_trans->gw_conf->got_show_repo_description == 0)
1424 		goto err;
1425 
1426 	if (asprintf(&d_file, "%s/description", dir) == -1)
1427 		goto err;
1428 
1429 	if ((f = fopen(d_file, "r")) == NULL)
1430 		goto err;
1431 
1432 	fseek(f, 0, SEEK_END);
1433 	len = ftell(f) + 1;
1434 	fseek(f, 0, SEEK_SET);
1435 	if ((description = calloc(len, sizeof(char *))) == NULL)
1436 		goto err;
1437 
1438 	fread(description, 1, len, f);
1439 	fclose(f);
1440 	free(d_file);
1441 	return description;
1442 err:
1443 	return strdup("");
1444 }
1445 
1446 static char *
1447 gw_get_time_str(time_t committer_time, int ref_tm)
1448 {
1449 	struct tm tm;
1450 	time_t diff_time;
1451 	char *years = "years ago", *months = "months ago";
1452 	char *weeks = "weeks ago", *days = "days ago", *hours = "hours ago";
1453 	char *minutes = "minutes ago", *seconds = "seconds ago";
1454 	char *now = "right now";
1455 	char *repo_age, *s;
1456 	char datebuf[29];
1457 
1458 	switch (ref_tm) {
1459 	case TM_DIFF:
1460 		diff_time = time(NULL) - committer_time;
1461 		if (diff_time > 60 * 60 * 24 * 365 * 2) {
1462 			if (asprintf(&repo_age, "%lld %s",
1463 			    (diff_time / 60 / 60 / 24 / 365), years) == -1)
1464 				return NULL;
1465 		} else if (diff_time > 60 * 60 * 24 * (365 / 12) * 2) {
1466 			if (asprintf(&repo_age, "%lld %s",
1467 			    (diff_time / 60 / 60 / 24 / (365 / 12)),
1468 			    months) == -1)
1469 				return NULL;
1470 		} else if (diff_time > 60 * 60 * 24 * 7 * 2) {
1471 			if (asprintf(&repo_age, "%lld %s",
1472 			    (diff_time / 60 / 60 / 24 / 7), weeks) == -1)
1473 				return NULL;
1474 		} else if (diff_time > 60 * 60 * 24 * 2) {
1475 			if (asprintf(&repo_age, "%lld %s",
1476 			    (diff_time / 60 / 60 / 24), days) == -1)
1477 				return NULL;
1478 		} else if (diff_time > 60 * 60 * 2) {
1479 			if (asprintf(&repo_age, "%lld %s",
1480 			    (diff_time / 60 / 60), hours) == -1)
1481 				return NULL;
1482 		} else if (diff_time > 60 * 2) {
1483 			if (asprintf(&repo_age, "%lld %s", (diff_time / 60),
1484 			    minutes) == -1)
1485 				return NULL;
1486 		} else if (diff_time > 2) {
1487 			if (asprintf(&repo_age, "%lld %s", diff_time,
1488 			    seconds) == -1)
1489 				return NULL;
1490 		} else {
1491 			if (asprintf(&repo_age, "%s", now) == -1)
1492 				return NULL;
1493 		}
1494 		break;
1495 	case TM_LONG:
1496 		if (gmtime_r(&committer_time, &tm) == NULL)
1497 			return NULL;
1498 
1499 		s = asctime_r(&tm, datebuf);
1500 		if (s == NULL)
1501 			return NULL;
1502 
1503 		if (asprintf(&repo_age, "%s UTC", datebuf) == -1)
1504 			return NULL;
1505 		break;
1506 	}
1507 	return repo_age;
1508 }
1509 
1510 static const struct got_error *
1511 gw_get_repo_age(char **repo_age, struct gw_trans *gw_trans, char *dir,
1512     char *repo_ref, int ref_tm)
1513 {
1514 	const struct got_error *error = NULL;
1515 	struct got_object_id *id = NULL;
1516 	struct got_repository *repo = NULL;
1517 	struct got_commit_object *commit = NULL;
1518 	struct got_reflist_head refs;
1519 	struct got_reflist_entry *re;
1520 	struct got_reference *head_ref;
1521 	int is_head = 0;
1522 	time_t committer_time = 0, cmp_time = 0;
1523 	const char *refname;
1524 
1525 	*repo_age = NULL;
1526 	SIMPLEQ_INIT(&refs);
1527 
1528 	if (repo_ref == NULL)
1529 		return NULL;
1530 
1531 	if (strncmp(repo_ref, "refs/heads/", 11) == 0)
1532 		is_head = 1;
1533 
1534 	if (gw_trans->gw_conf->got_show_repo_age == 0) {
1535 		*repo_age = strdup("");
1536 		if (*repo_age == NULL)
1537 			return got_error_from_errno("strdup");
1538 		return NULL;
1539 	}
1540 
1541 	error = got_repo_open(&repo, dir, NULL);
1542 	if (error)
1543 		goto done;
1544 
1545 	if (is_head)
1546 		error = got_ref_list(&refs, repo, "refs/heads",
1547 		    got_ref_cmp_by_name, NULL);
1548 	else
1549 		error = got_ref_list(&refs, repo, repo_ref,
1550 		    got_ref_cmp_by_name, NULL);
1551 	if (error)
1552 		goto done;
1553 
1554 	SIMPLEQ_FOREACH(re, &refs, entry) {
1555 		if (is_head)
1556 			refname = strdup(repo_ref);
1557 		else
1558 			refname = got_ref_get_name(re->ref);
1559 		error = got_ref_open(&head_ref, repo, refname, 0);
1560 		if (error)
1561 			goto done;
1562 
1563 		error = got_ref_resolve(&id, repo, head_ref);
1564 		got_ref_close(head_ref);
1565 		if (error)
1566 			goto done;
1567 
1568 		error = got_object_open_as_commit(&commit, repo, id);
1569 		if (error)
1570 			goto done;
1571 
1572 		committer_time =
1573 		    got_object_commit_get_committer_time(commit);
1574 
1575 		if (cmp_time < committer_time)
1576 			cmp_time = committer_time;
1577 	}
1578 
1579 	if (cmp_time != 0) {
1580 		committer_time = cmp_time;
1581 		*repo_age = gw_get_time_str(committer_time, ref_tm);
1582 	} else {
1583 		*repo_age = strdup("");
1584 		if (*repo_age == NULL)
1585 			error = got_error_from_errno("strdup");
1586 	}
1587 done:
1588 	got_ref_list_free(&refs);
1589 	free(id);
1590 	return error;
1591 }
1592 
1593 static char *
1594 gw_get_diff(struct gw_trans *gw_trans, struct gw_header *header)
1595 {
1596 	const struct got_error *error;
1597 	FILE *f = NULL;
1598 	struct got_object_id *id1 = NULL, *id2 = NULL;
1599 	struct buf *diffbuf = NULL;
1600 	char *label1 = NULL, *label2 = NULL, *diff_html = NULL, *buf = NULL;
1601 	char *buf_color = NULL, *n_buf = NULL, *newline = NULL;
1602 	int obj_type;
1603 	size_t newsize;
1604 
1605 	f = got_opentemp();
1606 	if (f == NULL)
1607 		return NULL;
1608 
1609 	error = buf_alloc(&diffbuf, 0);
1610 	if (error)
1611 		return NULL;
1612 
1613 	error = got_repo_open(&header->repo, gw_trans->repo_path, NULL);
1614 	if (error)
1615 		goto done;
1616 
1617 	if (strncmp(header->parent_id, "/dev/null", 9) != 0) {
1618 		error = got_repo_match_object_id(&id1, &label1,
1619 			header->parent_id, GOT_OBJ_TYPE_ANY, 1, header->repo);
1620 		if (error)
1621 			goto done;
1622 	}
1623 
1624 	error = got_repo_match_object_id(&id2, &label2,
1625 	    header->commit_id, GOT_OBJ_TYPE_ANY, 1, header->repo);
1626 	if (error)
1627 		goto done;
1628 
1629 	error = got_object_get_type(&obj_type, header->repo, id2);
1630 	if (error)
1631 		goto done;
1632 	switch (obj_type) {
1633 	case GOT_OBJ_TYPE_BLOB:
1634 		error = got_diff_objects_as_blobs(id1, id2, NULL, NULL, 3, 0,
1635 		    header->repo, f);
1636 		break;
1637 	case GOT_OBJ_TYPE_TREE:
1638 		error = got_diff_objects_as_trees(id1, id2, "", "", 3, 0,
1639 		    header->repo, f);
1640 		break;
1641 	case GOT_OBJ_TYPE_COMMIT:
1642 		error = got_diff_objects_as_commits(id1, id2, 3, 0,
1643 		    header->repo, f);
1644 		break;
1645 	default:
1646 		error = got_error(GOT_ERR_OBJ_TYPE);
1647 	}
1648 
1649 	if ((buf = calloc(128, sizeof(char *))) == NULL)
1650 		goto done;
1651 
1652 	fseek(f, 0, SEEK_SET);
1653 
1654 	while ((fgets(buf, 2048, f)) != NULL) {
1655 		n_buf = buf;
1656 		while (*n_buf == '\n')
1657 			n_buf++;
1658 		newline = strchr(n_buf, '\n');
1659 		if (newline)
1660 			*newline = ' ';
1661 
1662 		buf_color = gw_colordiff_line(gw_html_escape(n_buf));
1663 		if (buf_color == NULL)
1664 			continue;
1665 
1666 		error = buf_puts(&newsize, diffbuf, buf_color);
1667 		if (error)
1668 			return NULL;
1669 
1670 		error = buf_puts(&newsize, diffbuf, div_end);
1671 		if (error)
1672 			return NULL;
1673 	}
1674 
1675 	if (buf_len(diffbuf) > 0) {
1676 		error = buf_putc(diffbuf, '\0');
1677 		diff_html = strdup(buf_get(diffbuf));
1678 	}
1679 done:
1680 	fclose(f);
1681 	free(buf_color);
1682 	free(buf);
1683 	free(diffbuf);
1684 	free(label1);
1685 	free(label2);
1686 	free(id1);
1687 	free(id2);
1688 
1689 	if (error)
1690 		return NULL;
1691 	else
1692 		return diff_html;
1693 }
1694 
1695 static char *
1696 gw_get_repo_owner(struct gw_trans *gw_trans, char *dir)
1697 {
1698 	FILE *f;
1699 	char *owner = NULL, *d_file = NULL;
1700 	char *gotweb = "[gotweb]", *gitweb = "[gitweb]", *gw_owner = "owner";
1701 	char *comp, *pos, *buf;
1702 	unsigned int i;
1703 
1704 	if (gw_trans->gw_conf->got_show_repo_owner == 0)
1705 		goto err;
1706 
1707 	if (asprintf(&d_file, "%s/config", dir) == -1)
1708 		goto err;
1709 
1710 	if ((f = fopen(d_file, "r")) == NULL)
1711 		goto err;
1712 
1713 	if ((buf = calloc(128, sizeof(char *))) == NULL)
1714 		goto err;
1715 
1716 	while ((fgets(buf, 128, f)) != NULL) {
1717 		if ((pos = strstr(buf, gotweb)) != NULL)
1718 			break;
1719 
1720 		if ((pos = strstr(buf, gitweb)) != NULL)
1721 			break;
1722 	}
1723 
1724 	if (pos == NULL)
1725 		goto err;
1726 
1727 	do {
1728 		fgets(buf, 128, f);
1729 	} while ((comp = strcasestr(buf, gw_owner)) == NULL);
1730 
1731 	if (comp == NULL)
1732 		goto err;
1733 
1734 	if (strncmp(gw_owner, comp, strlen(gw_owner)) != 0)
1735 		goto err;
1736 
1737 	for (i = 0; i < 2; i++) {
1738 		owner = strsep(&buf, "\"");
1739 	}
1740 
1741 	if (owner == NULL)
1742 		goto err;
1743 
1744 	fclose(f);
1745 	free(d_file);
1746 	return owner;
1747 err:
1748 	return strdup("");
1749 }
1750 
1751 static char *
1752 gw_get_clone_url(struct gw_trans *gw_trans, char *dir)
1753 {
1754 	FILE *f;
1755 	char *url = NULL, *d_file = NULL;
1756 	unsigned int len;
1757 
1758 	if (asprintf(&d_file, "%s/cloneurl", dir) == -1)
1759 		return NULL;
1760 
1761 	if ((f = fopen(d_file, "r")) == NULL)
1762 		return NULL;
1763 
1764 	fseek(f, 0, SEEK_END);
1765 	len = ftell(f) + 1;
1766 	fseek(f, 0, SEEK_SET);
1767 
1768 	if ((url = calloc(len, sizeof(char *))) == NULL)
1769 		return NULL;
1770 
1771 	fread(url, 1, len, f);
1772 	fclose(f);
1773 	free(d_file);
1774 	return url;
1775 }
1776 
1777 static char *
1778 gw_get_repo_tags(struct gw_trans *gw_trans, struct gw_header *header, int limit,
1779     int tag_type)
1780 {
1781 	const struct got_error *error = NULL;
1782 	struct got_repository *repo = NULL;
1783 	struct got_reflist_head refs;
1784 	struct got_reflist_entry *re;
1785 	char *tags = NULL, *tag_row = NULL, *tags_navs_disp = NULL;
1786 	char *age = NULL, *newline;
1787 	struct buf *diffbuf = NULL;
1788 	size_t newsize;
1789 
1790 	SIMPLEQ_INIT(&refs);
1791 
1792 	error = buf_alloc(&diffbuf, 0);
1793 	if (error)
1794 		return NULL;
1795 
1796 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
1797 	if (error)
1798 		goto done;
1799 
1800 	error = got_ref_list(&refs, repo, "refs/tags", got_ref_cmp_tags, repo);
1801 	if (error)
1802 		goto done;
1803 
1804 	SIMPLEQ_FOREACH(re, &refs, entry) {
1805 		const char *refname;
1806 		char *refstr, *tag_commit0, *tag_commit, *id_str;
1807 		const char *tagger;
1808 		time_t tagger_time;
1809 		struct got_object_id *id;
1810 		struct got_tag_object *tag;
1811 
1812 		refname = got_ref_get_name(re->ref);
1813 		if (strncmp(refname, "refs/tags/", 10) != 0)
1814 			continue;
1815 		refname += 10;
1816 		refstr = got_ref_to_str(re->ref);
1817 		if (refstr == NULL) {
1818 			error = got_error_from_errno("got_ref_to_str");
1819 			goto done;
1820 		}
1821 
1822 		error = got_ref_resolve(&id, repo, re->ref);
1823 		if (error)
1824 			goto done;
1825 		error = got_object_open_as_tag(&tag, repo, id);
1826 		free(id);
1827 		if (error)
1828 			goto done;
1829 
1830 		tagger = got_object_tag_get_tagger(tag);
1831 		tagger_time = got_object_tag_get_tagger_time(tag);
1832 
1833 		error = got_object_id_str(&id_str,
1834 		    got_object_tag_get_object_id(tag));
1835 		if (error)
1836 			goto done;
1837 
1838 		tag_commit0 = strdup(got_object_tag_get_message(tag));
1839 
1840 		if (tag_commit0 == NULL) {
1841 			error = got_error_from_errno("strdup");
1842 			goto done;
1843 		}
1844 
1845 		tag_commit = tag_commit0;
1846 		while (*tag_commit == '\n')
1847 			tag_commit++;
1848 
1849 		switch (tag_type) {
1850 		case TAGBRIEF:
1851 			newline = strchr(tag_commit, '\n');
1852 			if (newline)
1853 				*newline = '\0';
1854 
1855 			if (asprintf(&age, "%s", gw_get_time_str(tagger_time,
1856 			    TM_DIFF)) == -1) {
1857 				error = got_error_from_errno("asprintf");
1858 				goto done;
1859 			}
1860 
1861 			if (asprintf(&tags_navs_disp, tags_navs,
1862 			    gw_trans->repo_name, id_str, gw_trans->repo_name,
1863 			    id_str, gw_trans->repo_name, id_str,
1864 			    gw_trans->repo_name, id_str) == -1) {
1865 				error = got_error_from_errno("asprintf");
1866 				goto done;
1867 			}
1868 
1869 			if (asprintf(&tag_row, tags_row, age, refname,
1870 			    tag_commit, tags_navs_disp) == -1) {
1871 				error = got_error_from_errno("asprintf");
1872 				goto done;
1873 			}
1874 
1875 			free(tags_navs_disp);
1876 			break;
1877 		case TAGFULL:
1878 			if (asprintf(&age, "%s", gw_get_time_str(tagger_time,
1879 			    TM_LONG)) == -1) {
1880 				error = got_error_from_errno("asprintf");
1881 				goto done;
1882 			}
1883 			if (asprintf(&tag_row, tag_info, age,
1884 			    gw_html_escape(tagger),
1885 			    gw_html_escape(tag_commit)) == -1) {
1886 				error = got_error_from_errno("asprintf");
1887 				goto done;
1888 			}
1889 			break;
1890 		default:
1891 			break;
1892 		}
1893 
1894 		got_object_tag_close(tag);
1895 
1896 		error = buf_puts(&newsize, diffbuf, tag_row);
1897 
1898 		free(id_str);
1899 		free(refstr);
1900 		free(age);
1901 		free(tag_commit0);
1902 		free(tag_row);
1903 
1904 		if (error || (limit && --limit == 0))
1905 			break;
1906 	}
1907 
1908 	if (buf_len(diffbuf) > 0) {
1909 		error = buf_putc(diffbuf, '\0');
1910 		tags = strdup(buf_get(diffbuf));
1911 	}
1912 done:
1913 	buf_free(diffbuf);
1914 	got_ref_list_free(&refs);
1915 	if (repo)
1916 		got_repo_close(repo);
1917 	if (error)
1918 		return NULL;
1919 	else
1920 		return tags;
1921 }
1922 
1923 static void
1924 gw_free_headers(struct gw_header *header)
1925 {
1926 	free(header->id);
1927 	free(header->path);
1928 	if (header->commit != NULL)
1929 		got_object_commit_close(header->commit);
1930 	if (header->repo)
1931 		got_repo_close(header->repo);
1932 	free(header->refs_str);
1933 	free(header->commit_id);
1934 	free(header->parent_id);
1935 	free(header->tree_id);
1936 	free(header->author);
1937 	free(header->committer);
1938 	free(header->commit_msg);
1939 }
1940 
1941 static struct gw_header *
1942 gw_init_header()
1943 {
1944 	struct gw_header *header;
1945 
1946 	header = malloc(sizeof(*header));
1947 	if (header == NULL)
1948 		return NULL;
1949 
1950 	header->repo = NULL;
1951 	header->commit = NULL;
1952 	header->id = NULL;
1953 	header->path = NULL;
1954 	SIMPLEQ_INIT(&header->refs);
1955 
1956 	return header;
1957 }
1958 
1959 static const struct got_error *
1960 gw_get_commits(struct gw_trans * gw_trans, struct gw_header *header,
1961     int limit)
1962 {
1963 	const struct got_error *error = NULL;
1964 	struct got_commit_graph *graph = NULL;
1965 
1966 	error = got_commit_graph_open(&graph, header->path, 0);
1967 	if (error)
1968 		goto done;
1969 
1970 	error = got_commit_graph_iter_start(graph, header->id, header->repo,
1971 	    NULL, NULL);
1972 	if (error)
1973 		goto done;
1974 
1975 	for (;;) {
1976 		error = got_commit_graph_iter_next(&header->id, graph,
1977 		    header->repo, NULL, NULL);
1978 		if (error) {
1979 			if (error->code == GOT_ERR_ITER_COMPLETED)
1980 				error = NULL;
1981 			goto done;
1982 		}
1983 		if (header->id == NULL)
1984 			goto done;
1985 
1986 		error = got_object_open_as_commit(&header->commit, header->repo,
1987 		    header->id);
1988 		if (error)
1989 			goto done;
1990 
1991 		error = gw_get_commit(gw_trans, header);
1992 		if (limit > 1) {
1993 			struct gw_header *n_header = NULL;
1994 			if ((n_header = gw_init_header()) == NULL) {
1995 				error = got_error_from_errno("malloc");
1996 				goto done;
1997 			}
1998 
1999 			n_header->refs_str = strdup(header->refs_str);
2000 			n_header->commit_id = strdup(header->commit_id);
2001 			n_header->parent_id = strdup(header->parent_id);
2002 			n_header->tree_id = strdup(header->tree_id);
2003 			n_header->author = strdup(header->author);
2004 			n_header->committer = strdup(header->committer);
2005 			n_header->commit_msg = strdup(header->commit_msg);
2006 			n_header->committer_time = header->committer_time;
2007 			TAILQ_INSERT_TAIL(&gw_trans->gw_headers, n_header,
2008 			    entry);
2009 		}
2010 		if (error || (limit && --limit == 0))
2011 			break;
2012 	}
2013 done:
2014 	if (graph)
2015 		got_commit_graph_close(graph);
2016 	return error;
2017 }
2018 
2019 static const struct got_error *
2020 gw_get_commit(struct gw_trans *gw_trans, struct gw_header *header)
2021 {
2022 	const struct got_error *error = NULL;
2023 	struct got_reflist_entry *re;
2024 	struct got_object_id *id2 = NULL;
2025 	struct got_object_qid *parent_id;
2026 	char *refs_str = NULL, *commit_msg = NULL, *commit_msg0;
2027 
2028 	/*print commit*/
2029 	SIMPLEQ_FOREACH(re, &header->refs, entry) {
2030 		char *s;
2031 		const char *name;
2032 		struct got_tag_object *tag = NULL;
2033 		int cmp;
2034 
2035 		name = got_ref_get_name(re->ref);
2036 		if (strcmp(name, GOT_REF_HEAD) == 0)
2037 			continue;
2038 		if (strncmp(name, "refs/", 5) == 0)
2039 			name += 5;
2040 		if (strncmp(name, "got/", 4) == 0)
2041 			continue;
2042 		if (strncmp(name, "heads/", 6) == 0)
2043 			name += 6;
2044 		if (strncmp(name, "remotes/", 8) == 0)
2045 			name += 8;
2046 		if (strncmp(name, "tags/", 5) == 0) {
2047 			error = got_object_open_as_tag(&tag, header->repo,
2048 			    re->id);
2049 			if (error) {
2050 				if (error->code != GOT_ERR_OBJ_TYPE)
2051 					continue;
2052 				/*
2053 				 * Ref points at something other
2054 				 * than a tag.
2055 				 */
2056 				error = NULL;
2057 				tag = NULL;
2058 			}
2059 		}
2060 		cmp = got_object_id_cmp(tag ?
2061 		    got_object_tag_get_object_id(tag) : re->id, header->id);
2062 		if (tag)
2063 			got_object_tag_close(tag);
2064 		if (cmp != 0)
2065 			continue;
2066 		s = refs_str;
2067 		if (asprintf(&refs_str, "%s%s%s", s ? s : "",
2068 		    s ? ", " : "", name) == -1) {
2069 			error = got_error_from_errno("asprintf");
2070 			free(s);
2071 			return error;
2072 		}
2073 		header->refs_str = strdup(refs_str);
2074 		free(s);
2075 	}
2076 
2077 	if (refs_str == NULL)
2078 		header->refs_str = strdup("");
2079 	free(refs_str);
2080 
2081 	error = got_object_id_str(&header->commit_id, header->id);
2082 	if (error)
2083 		return error;
2084 
2085 	error = got_object_id_str(&header->tree_id,
2086 	    got_object_commit_get_tree_id(header->commit));
2087 	if (error)
2088 		return error;
2089 
2090 	if (gw_trans->action == GW_DIFF) {
2091 		parent_id = SIMPLEQ_FIRST(
2092 		    got_object_commit_get_parent_ids(header->commit));
2093 		if (parent_id != NULL) {
2094 			id2 = got_object_id_dup(parent_id->id);
2095 			free (parent_id);
2096 			error = got_object_id_str(&header->parent_id, id2);
2097 			if (error)
2098 				return error;
2099 			free(id2);
2100 		} else
2101 			header->parent_id = strdup("/dev/null");
2102 	} else
2103 		header->parent_id = strdup("");
2104 
2105 	header->committer_time =
2106 	    got_object_commit_get_committer_time(header->commit);
2107 
2108 	if (gw_trans->action != GW_BRIEFS && gw_trans->action != GW_SUMMARY) {
2109 		header->author = strdup(
2110 	 	    gw_html_escape(got_object_commit_get_author(header->commit))
2111 		);
2112 	} else {
2113 		header->author = strdup(
2114 		    got_object_commit_get_author(header->commit)
2115 		);
2116 	}
2117 
2118 	header->committer = strdup(
2119 		gw_html_escape(got_object_commit_get_committer(header->commit))
2120 	);
2121 
2122 	error = got_object_commit_get_logmsg(&commit_msg0, header->commit);
2123 	if (error)
2124 		return error;
2125 
2126 	commit_msg = commit_msg0;
2127 	while (*commit_msg == '\n')
2128 		commit_msg++;
2129 
2130 	header->commit_msg = strdup(commit_msg);
2131 	free(commit_msg0);
2132 	return error;
2133 }
2134 
2135 static const struct got_error *
2136 gw_get_header(struct gw_trans *gw_trans, struct gw_header *header, int limit)
2137 {
2138 	const struct got_error *error = NULL;
2139 	char *in_repo_path = NULL;
2140 
2141 	error = got_repo_open(&header->repo, gw_trans->repo_path, NULL);
2142 	if (error)
2143 		return error;
2144 
2145 	if (gw_trans->commit == NULL) {
2146 		struct got_reference *head_ref;
2147 		error = got_ref_open(&head_ref, header->repo,
2148 		    gw_trans->headref, 0);
2149 		if (error)
2150 			return error;
2151 
2152 		error = got_ref_resolve(&header->id, header->repo, head_ref);
2153 		got_ref_close(head_ref);
2154 		if (error)
2155 			return error;
2156 
2157 		error = got_object_open_as_commit(&header->commit,
2158 		    header->repo, header->id);
2159 	} else {
2160 		struct got_reference *ref;
2161 		error = got_ref_open(&ref, header->repo, gw_trans->commit, 0);
2162 		if (error == NULL) {
2163 			int obj_type;
2164 			error = got_ref_resolve(&header->id, header->repo, ref);
2165 			got_ref_close(ref);
2166 			if (error)
2167 				return error;
2168 			error = got_object_get_type(&obj_type, header->repo,
2169 			    header->id);
2170 			if (error)
2171 				return error;
2172 			if (obj_type == GOT_OBJ_TYPE_TAG) {
2173 				struct got_tag_object *tag;
2174 				error = got_object_open_as_tag(&tag,
2175 				    header->repo, header->id);
2176 				if (error)
2177 					return error;
2178 				if (got_object_tag_get_object_type(tag) !=
2179 				    GOT_OBJ_TYPE_COMMIT) {
2180 					got_object_tag_close(tag);
2181 					error = got_error(GOT_ERR_OBJ_TYPE);
2182 					return error;
2183 				}
2184 				free(header->id);
2185 				header->id = got_object_id_dup(
2186 				    got_object_tag_get_object_id(tag));
2187 				if (header->id == NULL)
2188 					error = got_error_from_errno(
2189 					    "got_object_id_dup");
2190 				got_object_tag_close(tag);
2191 				if (error)
2192 					return error;
2193 			} else if (obj_type != GOT_OBJ_TYPE_COMMIT) {
2194 				error = got_error(GOT_ERR_OBJ_TYPE);
2195 				return error;
2196 			}
2197 			error = got_object_open_as_commit(&header->commit,
2198 			    header->repo, header->id);
2199 			if (error)
2200 				return error;
2201 		}
2202 		if (header->commit == NULL) {
2203 			error = got_repo_match_object_id_prefix(&header->id,
2204 			    gw_trans->commit, GOT_OBJ_TYPE_COMMIT,
2205 			    header->repo);
2206 			if (error)
2207 				return error;
2208 		}
2209 		error = got_repo_match_object_id_prefix(&header->id,
2210 			    gw_trans->commit, GOT_OBJ_TYPE_COMMIT,
2211 			    header->repo);
2212 	}
2213 
2214 	error = got_repo_map_path(&in_repo_path, header->repo,
2215 	    gw_trans->repo_path, 1);
2216 	if (error)
2217 		return error;
2218 
2219 	if (in_repo_path) {
2220 		header->path = strdup(in_repo_path);
2221 	}
2222 	free(in_repo_path);
2223 
2224 	error = got_ref_list(&header->refs, header->repo, NULL,
2225 	    got_ref_cmp_by_name, NULL);
2226 	if (error)
2227 		return error;
2228 
2229 	error = gw_get_commits(gw_trans, header, limit);
2230 	return error;
2231 }
2232 
2233 struct blame_line {
2234 	int annotated;
2235 	char *id_str;
2236 	char *committer;
2237 	char datebuf[11]; /* YYYY-MM-DD + NUL */
2238 };
2239 
2240 struct gw_blame_cb_args {
2241 	struct blame_line *lines;
2242 	int nlines;
2243 	int nlines_prec;
2244 	int lineno_cur;
2245 	off_t *line_offsets;
2246 	FILE *f;
2247 	struct got_repository *repo;
2248 	struct gw_trans *gw_trans;
2249 	struct buf *blamebuf;
2250 };
2251 
2252 static const struct got_error *
2253 gw_blame_cb(void *arg, int nlines, int lineno, struct got_object_id *id)
2254 {
2255 	const struct got_error *err = NULL;
2256 	struct gw_blame_cb_args *a = arg;
2257 	struct blame_line *bline;
2258 	char *line = NULL;
2259 	size_t linesize = 0, newsize;
2260 	struct got_commit_object *commit = NULL;
2261 	off_t offset;
2262 	struct tm tm;
2263 	time_t committer_time;
2264 
2265 	if (nlines != a->nlines ||
2266 	    (lineno != -1 && lineno < 1) || lineno > a->nlines)
2267 		return got_error(GOT_ERR_RANGE);
2268 
2269 	if (lineno == -1)
2270 		return NULL; /* no change in this commit */
2271 
2272 	/* Annotate this line. */
2273 	bline = &a->lines[lineno - 1];
2274 	if (bline->annotated)
2275 		return NULL;
2276 	err = got_object_id_str(&bline->id_str, id);
2277 	if (err)
2278 		return err;
2279 
2280 	err = got_object_open_as_commit(&commit, a->repo, id);
2281 	if (err)
2282 		goto done;
2283 
2284 	bline->committer = strdup(got_object_commit_get_committer(commit));
2285 	if (bline->committer == NULL) {
2286 		err = got_error_from_errno("strdup");
2287 		goto done;
2288 	}
2289 
2290 	committer_time = got_object_commit_get_committer_time(commit);
2291 	if (localtime_r(&committer_time, &tm) == NULL)
2292 		return got_error_from_errno("localtime_r");
2293 	if (strftime(bline->datebuf, sizeof(bline->datebuf), "%G-%m-%d",
2294 	    &tm) >= sizeof(bline->datebuf)) {
2295 		err = got_error(GOT_ERR_NO_SPACE);
2296 		goto done;
2297 	}
2298 	bline->annotated = 1;
2299 
2300 	/* Print lines annotated so far. */
2301 	bline = &a->lines[a->lineno_cur - 1];
2302 	if (!bline->annotated)
2303 		goto done;
2304 
2305 	offset = a->line_offsets[a->lineno_cur - 1];
2306 	if (fseeko(a->f, offset, SEEK_SET) == -1) {
2307 		err = got_error_from_errno("fseeko");
2308 		goto done;
2309 	}
2310 
2311 	while (bline->annotated) {
2312 		char *smallerthan, *at, *nl, *committer, *blame_row = NULL,
2313 		     *line_escape = NULL;
2314 		size_t len;
2315 
2316 		if (getline(&line, &linesize, a->f) == -1) {
2317 			if (ferror(a->f))
2318 				err = got_error_from_errno("getline");
2319 			break;
2320 		}
2321 
2322 		committer = bline->committer;
2323 		smallerthan = strchr(committer, '<');
2324 		if (smallerthan && smallerthan[1] != '\0')
2325 			committer = smallerthan + 1;
2326 		at = strchr(committer, '@');
2327 		if (at)
2328 			*at = '\0';
2329 		len = strlen(committer);
2330 		if (len >= 9)
2331 			committer[8] = '\0';
2332 
2333 		nl = strchr(line, '\n');
2334 		if (nl)
2335 			*nl = '\0';
2336 
2337 		if (strcmp(line, "") != 0)
2338 			line_escape = strdup(gw_html_escape(line));
2339 		else
2340 			line_escape = strdup("");
2341 
2342 		asprintf(&blame_row, blame_line, a->nlines_prec,
2343 		    a->lineno_cur, bline->id_str, bline->datebuf, committer,
2344 		    line_escape);
2345 		a->lineno_cur++;
2346 		err = buf_puts(&newsize, a->blamebuf, blame_row);
2347 		if (err)
2348 			return err;
2349 
2350 		bline = &a->lines[a->lineno_cur - 1];
2351 		free(line_escape);
2352 		free(blame_row);
2353 	}
2354 done:
2355 	if (commit)
2356 		got_object_commit_close(commit);
2357 	free(line);
2358 	return err;
2359 }
2360 
2361 static char*
2362 gw_get_file_blame_blob(struct gw_trans *gw_trans)
2363 {
2364 	const struct got_error *error = NULL;
2365 	struct got_repository *repo = NULL;
2366 	struct got_object_id *obj_id = NULL;
2367 	struct got_object_id *commit_id = NULL;
2368 	struct got_blob_object *blob = NULL;
2369 	char *blame_html = NULL, *path = NULL, *in_repo_path = NULL;
2370 	char *folder = NULL;
2371 	struct gw_blame_cb_args bca;
2372 	int i, obj_type;
2373 	size_t filesize;
2374 
2375 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2376 	if (error)
2377 		goto done;
2378 
2379 	if (gw_trans->repo_folder != NULL) {
2380 		if (asprintf(&folder, "%s/", gw_trans->repo_folder) == -1) {
2381 			error = got_error_from_errno("asprintf");
2382 			goto done;
2383 		}
2384 	} else
2385 		folder = strdup("");
2386 
2387 	if (asprintf(&path, "%s%s", folder, gw_trans->repo_file) == -1) {
2388 		error = got_error_from_errno("asprintf");
2389 		goto done;
2390 	}
2391 	free(folder);
2392 
2393 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
2394 	if (error)
2395 		goto done;
2396 
2397 	error = got_repo_match_object_id(&commit_id, NULL, gw_trans->commit,
2398 	    GOT_OBJ_TYPE_COMMIT, 1, repo);
2399 	if (error)
2400 		goto done;
2401 
2402 	error = got_object_id_by_path(&obj_id, repo, commit_id, in_repo_path);
2403 	if (error)
2404 		goto done;
2405 
2406 	if (obj_id == NULL) {
2407 		error = got_error(GOT_ERR_NO_OBJ);
2408 		goto done;
2409 	}
2410 
2411 	error = got_object_get_type(&obj_type, repo, obj_id);
2412 	if (error)
2413 		goto done;
2414 
2415 	if (obj_type != GOT_OBJ_TYPE_BLOB) {
2416 		error = got_error(GOT_ERR_OBJ_TYPE);
2417 		goto done;
2418 	}
2419 
2420 	error = got_object_open_as_blob(&blob, repo, obj_id, 8192);
2421 	if (error)
2422 		goto done;
2423 
2424 	error = buf_alloc(&bca.blamebuf, 0);
2425 	if (error)
2426 		goto done;
2427 
2428 	bca.f = got_opentemp();
2429 	if (bca.f == NULL) {
2430 		error = got_error_from_errno("got_opentemp");
2431 		goto done;
2432 	}
2433 	error = got_object_blob_dump_to_file(&filesize, &bca.nlines,
2434 	    &bca.line_offsets, bca.f, blob);
2435 	if (error || bca.nlines == 0)
2436 		goto done;
2437 
2438 	if (gw_trans->action == GW_BLOB) {
2439 		int len;
2440 		fseek(bca.f, 0, SEEK_END);
2441 		len = ftell(bca.f) + 1;
2442 		fseek(bca.f, 0, SEEK_SET);
2443 		if ((blame_html = calloc(len, sizeof(char *))) == NULL)
2444 			goto done;
2445 		fread(blame_html, 1, len, bca.f);
2446 		goto done;
2447 	}
2448 
2449 	/* Don't include \n at EOF in the blame line count. */
2450 	if (bca.line_offsets[bca.nlines - 1] == filesize)
2451 		bca.nlines--;
2452 
2453 	bca.lines = calloc(bca.nlines, sizeof(*bca.lines));
2454 	if (bca.lines == NULL) {
2455 		error = got_error_from_errno("calloc");
2456 		goto done;
2457 	}
2458 	bca.lineno_cur = 1;
2459 	bca.nlines_prec = 0;
2460 	i = bca.nlines;
2461 	while (i > 0) {
2462 		i /= 10;
2463 		bca.nlines_prec++;
2464 	}
2465 	bca.repo = repo;
2466 	bca.gw_trans = gw_trans;
2467 
2468 	error = got_blame(in_repo_path, commit_id, repo, gw_blame_cb, &bca,
2469 	    NULL, NULL);
2470 	if (error)
2471 		goto done;
2472 	if (buf_len(bca.blamebuf) > 0) {
2473 		error = buf_putc(bca.blamebuf, '\0');
2474 		blame_html = strdup(buf_get(bca.blamebuf));
2475 	}
2476 done:
2477 	free(bca.line_offsets);
2478 	free(bca.blamebuf);
2479 	free(in_repo_path);
2480 	free(commit_id);
2481 	free(obj_id);
2482 	free(path);
2483 
2484 	if (gw_trans->action != GW_BLOB && bca.lines) {
2485 		for (i = 0; i < bca.nlines; i++) {
2486 			struct blame_line *bline = &bca.lines[i];
2487 			free(bline->id_str);
2488 			free(bline->committer);
2489 		}
2490 		free(bca.lines);
2491 	}
2492 	if (error)
2493 		return NULL;
2494 	if (bca.f && fclose(bca.f) == EOF && error == NULL)
2495 		return NULL;
2496 	if (blob)
2497 		error = got_object_blob_close(blob);
2498 	if (error)
2499 		return NULL;
2500 	if (repo)
2501 		error = got_repo_close(repo);
2502 	if (error)
2503 		return NULL;
2504 	else
2505 		return blame_html;
2506 }
2507 
2508 static char*
2509 gw_get_repo_tree(struct gw_trans *gw_trans)
2510 {
2511 	const struct got_error *error = NULL;
2512 	struct got_repository *repo = NULL;
2513 	struct got_object_id *tree_id = NULL, *commit_id = NULL;
2514 	struct got_tree_object *tree = NULL;
2515 	struct buf *diffbuf = NULL;
2516 	size_t newsize;
2517 	char *tree_html = NULL, *path = NULL, *in_repo_path = NULL,
2518 	    *tree_row = NULL, *id_str, *class = NULL;
2519 	int nentries, i, class_flip = 0;
2520 
2521 	error = buf_alloc(&diffbuf, 0);
2522 	if (error)
2523 		return NULL;
2524 
2525 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2526 	if (error)
2527 		goto done;
2528 
2529 	error = got_repo_map_path(&in_repo_path, repo, gw_trans->repo_path, 1);
2530 	if (error)
2531 		goto done;
2532 
2533 	if (gw_trans->repo_folder != NULL)
2534 		path = strdup(gw_trans->repo_folder);
2535 	else if (in_repo_path) {
2536 		free(path);
2537 		path = in_repo_path;
2538 	}
2539 
2540 	if (gw_trans->commit == NULL) {
2541 		struct got_reference *head_ref;
2542 		error = got_ref_open(&head_ref, repo, gw_trans->headref, 0);
2543 		if (error)
2544 			goto done;
2545 
2546 		error = got_ref_resolve(&commit_id, repo, head_ref);
2547 		got_ref_close(head_ref);
2548 
2549 	} else
2550 		error = got_repo_match_object_id(&commit_id, NULL,
2551 		    gw_trans->commit, GOT_OBJ_TYPE_COMMIT, 1, repo);
2552 	if (error)
2553 		goto done;
2554 
2555 	error = got_object_id_str(&gw_trans->commit, commit_id);
2556 	if (error)
2557 		goto done;
2558 
2559 	error = got_object_id_by_path(&tree_id, repo, commit_id, path);
2560 	if (error)
2561 		goto done;
2562 
2563 	error = got_object_open_as_tree(&tree, repo, tree_id);
2564 	if (error)
2565 		goto done;
2566 
2567 	nentries = got_object_tree_get_nentries(tree);
2568 
2569 	for (i = 0; i < nentries; i++) {
2570 		struct got_tree_entry *te;
2571 		const char *modestr = "";
2572 		char *id = NULL, *url_html = NULL;
2573 
2574 		te = got_object_tree_get_entry(tree, i);
2575 
2576 		error = got_object_id_str(&id_str, got_tree_entry_get_id(te));
2577 		if (error)
2578 			goto done;
2579 
2580 		if (asprintf(&id, "%s", id_str) == -1) {
2581 			error = got_error_from_errno("asprintf");
2582 			free(id_str);
2583 			goto done;
2584 		}
2585 
2586 		mode_t mode = got_tree_entry_get_mode(te);
2587 
2588 		if (got_object_tree_entry_is_submodule(te))
2589 			modestr = "$";
2590 		else if (S_ISLNK(mode))
2591 			modestr = "@";
2592 		else if (S_ISDIR(mode))
2593 			modestr = "/";
2594 		else if (mode & S_IXUSR)
2595 			modestr = "*";
2596 
2597 		if (class_flip == 0) {
2598 			class = strdup("back_lightgray");
2599 			class_flip = 1;
2600 		} else {
2601 			class = strdup("back_white");
2602 			class_flip = 0;
2603 		}
2604 
2605 		char *build_folder = NULL;
2606 		if (S_ISDIR(got_tree_entry_get_mode(te))) {
2607 			if (gw_trans->repo_folder != NULL) {
2608 				if (asprintf(&build_folder, "%s/%s",
2609 				    gw_trans->repo_folder,
2610 				    got_tree_entry_get_name(te)) == -1) {
2611 					error =
2612 					    got_error_from_errno("asprintf");
2613 					goto done;
2614 				}
2615 			} else {
2616 				if (asprintf(&build_folder, "%s",
2617 				    got_tree_entry_get_name(te)) == -1)
2618 					goto done;
2619 			}
2620 
2621 			if (asprintf(&url_html, folder_html,
2622 			    gw_trans->repo_name, gw_trans->action_name,
2623 			    gw_trans->commit, build_folder,
2624 			    got_tree_entry_get_name(te), modestr) == -1) {
2625 				error = got_error_from_errno("asprintf");
2626 				goto done;
2627 			}
2628 		if (asprintf(&tree_row, tree_line, class, url_html,
2629 			class) == -1) {
2630 			error = got_error_from_errno("asprintf");
2631 			goto done;
2632 		}
2633 
2634 		} else {
2635 			if (gw_trans->repo_folder != NULL) {
2636 				if (asprintf(&build_folder, "%s",
2637 				    gw_trans->repo_folder) == -1) {
2638 					error =
2639 					    got_error_from_errno("asprintf");
2640 					goto done;
2641 				}
2642 			} else
2643 				build_folder = strdup("");
2644 
2645 			if (asprintf(&url_html, file_html, gw_trans->repo_name,
2646 			    "blob", gw_trans->commit,
2647 			    got_tree_entry_get_name(te), build_folder,
2648 			    got_tree_entry_get_name(te), modestr) == -1) {
2649 				error = got_error_from_errno("asprintf");
2650 				goto done;
2651 			}
2652 
2653 			if (asprintf(&tree_row, tree_line_with_navs, class,
2654 				url_html, class, gw_trans->repo_name, "blob",
2655 				gw_trans->commit, got_tree_entry_get_name(te),
2656 				build_folder, "blob", gw_trans->repo_name,
2657 				"blame", gw_trans->commit,
2658 				got_tree_entry_get_name(te), build_folder,
2659 				"blame") == -1) {
2660 				error = got_error_from_errno("asprintf");
2661 				goto done;
2662 			}
2663 		}
2664 		free(build_folder);
2665 
2666 		if (error)
2667 			goto done;
2668 
2669 		error = buf_puts(&newsize, diffbuf, tree_row);
2670 		if (error)
2671 			goto done;
2672 
2673 		free(id);
2674 		free(id_str);
2675 		free(url_html);
2676 		free(tree_row);
2677 	}
2678 
2679 	if (buf_len(diffbuf) > 0) {
2680 		error = buf_putc(diffbuf, '\0');
2681 		tree_html = strdup(buf_get(diffbuf));
2682 	}
2683 done:
2684 	if (tree)
2685 		got_object_tree_close(tree);
2686 	if (repo)
2687 		got_repo_close(repo);
2688 
2689 	free(in_repo_path);
2690 	free(tree_id);
2691 	free(diffbuf);
2692 	if (error)
2693 		return NULL;
2694 	else
2695 		return tree_html;
2696 }
2697 
2698 static char *
2699 gw_get_repo_heads(struct gw_trans *gw_trans)
2700 {
2701 	const struct got_error *error = NULL;
2702 	struct got_repository *repo = NULL;
2703 	struct got_reflist_head refs;
2704 	struct got_reflist_entry *re;
2705 	char *heads, *head_row = NULL, *head_navs_disp = NULL, *age = NULL;
2706 	struct buf *diffbuf = NULL;
2707 	size_t newsize;
2708 
2709 	SIMPLEQ_INIT(&refs);
2710 
2711 	error = buf_alloc(&diffbuf, 0);
2712 	if (error)
2713 		return NULL;
2714 
2715 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2716 	if (error)
2717 		goto done;
2718 
2719 	error = got_ref_list(&refs, repo, "refs/heads", got_ref_cmp_by_name,
2720 	    NULL);
2721 	if (error)
2722 		goto done;
2723 
2724 	SIMPLEQ_FOREACH(re, &refs, entry) {
2725 		char *refname;
2726 
2727 		refname = strdup(got_ref_get_name(re->ref));
2728 		if (refname == NULL) {
2729 			error = got_error_from_errno("got_ref_to_str");
2730 			goto done;
2731 		}
2732 
2733 		if (strncmp(refname, "refs/heads/", 11) != 0) {
2734 			free(refname);
2735 			continue;
2736 		}
2737 
2738 		error = gw_get_repo_age(&age, gw_trans, gw_trans->gw_dir->path, refname,
2739 		    TM_DIFF);
2740 		if (error)
2741 			goto done;
2742 
2743 		if (asprintf(&head_navs_disp, heads_navs, gw_trans->repo_name,
2744 		    refname, gw_trans->repo_name, refname,
2745 		    gw_trans->repo_name, refname, gw_trans->repo_name,
2746 		    refname) == -1) {
2747 			error = got_error_from_errno("asprintf");
2748 			goto done;
2749 		}
2750 
2751 		if (strncmp(refname, "refs/heads/", 11) == 0)
2752 			refname += 11;
2753 
2754 		if (asprintf(&head_row, heads_row, age, refname,
2755 		    head_navs_disp) == -1) {
2756 			error = got_error_from_errno("asprintf");
2757 			goto done;
2758 		}
2759 
2760 		error = buf_puts(&newsize, diffbuf, head_row);
2761 
2762 		free(head_navs_disp);
2763 		free(head_row);
2764 	}
2765 
2766 	if (buf_len(diffbuf) > 0) {
2767 		error = buf_putc(diffbuf, '\0');
2768 		heads = strdup(buf_get(diffbuf));
2769 	}
2770 done:
2771 	buf_free(diffbuf);
2772 	got_ref_list_free(&refs);
2773 	if (repo)
2774 		got_repo_close(repo);
2775 	if (error)
2776 		return NULL;
2777 	else
2778 		return heads;
2779 }
2780 
2781 static char *
2782 gw_get_got_link(struct gw_trans *gw_trans)
2783 {
2784 	char *link;
2785 
2786 	if (asprintf(&link, got_link, gw_trans->gw_conf->got_logo_url,
2787 	    gw_trans->gw_conf->got_logo) == -1)
2788 		return NULL;
2789 
2790 	return link;
2791 }
2792 
2793 static char *
2794 gw_get_site_link(struct gw_trans *gw_trans)
2795 {
2796 	char *link, *repo = "", *action = "";
2797 
2798 	if (gw_trans->repo_name != NULL)
2799 		if (asprintf(&repo, " / <a href='?path=%s&action=summary'>%s" \
2800 		    "</a>", gw_trans->repo_name, gw_trans->repo_name) == -1)
2801 			return NULL;
2802 
2803 	if (gw_trans->action_name != NULL)
2804 		if (asprintf(&action, " / %s", gw_trans->action_name) == -1)
2805 			return NULL;
2806 
2807 	if (asprintf(&link, site_link, GOTWEB,
2808 	    gw_trans->gw_conf->got_site_link, repo, action) == -1)
2809 		return NULL;
2810 
2811 	return link;
2812 }
2813 
2814 static char *
2815 gw_colordiff_line(char *buf)
2816 {
2817 	const struct got_error *error = NULL;
2818 	char *colorized_line = NULL, *div_diff_line_div = NULL, *color = NULL;
2819 	struct buf *diffbuf = NULL;
2820 	size_t newsize;
2821 
2822 	error = buf_alloc(&diffbuf, 0);
2823 	if (error)
2824 		return NULL;
2825 
2826 	if (buf == NULL)
2827 		return NULL;
2828 	if (strncmp(buf, "-", 1) == 0)
2829 		color = "diff_minus";
2830 	if (strncmp(buf, "+", 1) == 0)
2831 		color = "diff_plus";
2832 	if (strncmp(buf, "@@", 2) == 0)
2833 		color = "diff_chunk_header";
2834 	if (strncmp(buf, "@@", 2) == 0)
2835 		color = "diff_chunk_header";
2836 	if (strncmp(buf, "commit +", 8) == 0)
2837 		color = "diff_meta";
2838 	if (strncmp(buf, "commit -", 8) == 0)
2839 		color = "diff_meta";
2840 	if (strncmp(buf, "blob +", 6) == 0)
2841 		color = "diff_meta";
2842 	if (strncmp(buf, "blob -", 6) == 0)
2843 		color = "diff_meta";
2844 	if (strncmp(buf, "file +", 6) == 0)
2845 		color = "diff_meta";
2846 	if (strncmp(buf, "file -", 6) == 0)
2847 		color = "diff_meta";
2848 	if (strncmp(buf, "from:", 5) == 0)
2849 		color = "diff_author";
2850 	if (strncmp(buf, "via:", 4) == 0)
2851 		color = "diff_author";
2852 	if (strncmp(buf, "date:", 5) == 0)
2853 		color = "diff_date";
2854 
2855 	if (asprintf(&div_diff_line_div, div_diff_line, color) == -1)
2856 		return NULL;
2857 
2858 	error = buf_puts(&newsize, diffbuf, div_diff_line_div);
2859 	if (error)
2860 		return NULL;
2861 
2862 	error = buf_puts(&newsize, diffbuf, buf);
2863 	if (error)
2864 		return NULL;
2865 
2866 	if (buf_len(diffbuf) > 0) {
2867 		error = buf_putc(diffbuf, '\0');
2868 		colorized_line = strdup(buf_get(diffbuf));
2869 	}
2870 
2871 	free(diffbuf);
2872 	free(div_diff_line_div);
2873 	return colorized_line;
2874 }
2875 
2876 static char *
2877 gw_html_escape(const char *html)
2878 {
2879 	char *escaped_str = NULL, *buf;
2880 	char c[1];
2881 	size_t sz, i, buff_sz = 2048;
2882 
2883 	if ((buf = calloc(buff_sz, sizeof(char *))) == NULL)
2884 		return NULL;
2885 
2886 	if (html == NULL)
2887 		return NULL;
2888 	else
2889 		if ((sz = strlen(html)) == 0)
2890 			return NULL;
2891 
2892 	/* only work with buff_sz */
2893 	if (buff_sz < sz)
2894 		sz = buff_sz;
2895 
2896 	for (i = 0; i < sz; i++) {
2897 		c[0] = html[i];
2898 		switch (c[0]) {
2899 		case ('>'):
2900 			strcat(buf, "&gt;");
2901 			break;
2902 		case ('&'):
2903 			strcat(buf, "&amp;");
2904 			break;
2905 		case ('<'):
2906 			strcat(buf, "&lt;");
2907 			break;
2908 		case ('"'):
2909 			strcat(buf, "&quot;");
2910 			break;
2911 		case ('\''):
2912 			strcat(buf, "&apos;");
2913 			break;
2914 		case ('\n'):
2915 			strcat(buf, "<br />");
2916 		default:
2917 			strcat(buf, &c[0]);
2918 			break;
2919 		}
2920 	}
2921 	asprintf(&escaped_str, "%s", buf);
2922 	free(buf);
2923 	return escaped_str;
2924 }
2925 
2926 int
2927 main(int argc, char *argv[])
2928 {
2929 	const struct got_error *error = NULL;
2930 	struct gw_trans *gw_trans;
2931 	struct gw_dir *dir = NULL, *tdir;
2932 	const char *page = "index";
2933 	int gw_malloc = 1;
2934 	enum kcgi_err kerr;
2935 
2936 	if ((gw_trans = malloc(sizeof(struct gw_trans))) == NULL)
2937 		errx(1, "malloc");
2938 
2939 	if ((gw_trans->gw_req = malloc(sizeof(struct kreq))) == NULL)
2940 		errx(1, "malloc");
2941 
2942 	if ((gw_trans->gw_html_req = malloc(sizeof(struct khtmlreq))) == NULL)
2943 		errx(1, "malloc");
2944 
2945 	if ((gw_trans->gw_tmpl = malloc(sizeof(struct ktemplate))) == NULL)
2946 		errx(1, "malloc");
2947 
2948 	kerr = khttp_parse(gw_trans->gw_req, gw_keys, KEY__ZMAX, &page, 1, 0);
2949 	if (kerr != KCGI_OK) {
2950 		error = gw_kcgi_error(kerr);
2951 		goto done;
2952 	}
2953 
2954 	if ((gw_trans->gw_conf =
2955 	    malloc(sizeof(struct gotweb_conf))) == NULL) {
2956 		gw_malloc = 0;
2957 		error = got_error_from_errno("malloc");
2958 		goto done;
2959 	}
2960 
2961 	TAILQ_INIT(&gw_trans->gw_dirs);
2962 	TAILQ_INIT(&gw_trans->gw_headers);
2963 
2964 	gw_trans->page = 0;
2965 	gw_trans->repos_total = 0;
2966 	gw_trans->repo_path = NULL;
2967 	gw_trans->commit = NULL;
2968 	gw_trans->headref = strdup(GOT_REF_HEAD);
2969 	gw_trans->mime = KMIME_TEXT_HTML;
2970 	gw_trans->gw_tmpl->key = gw_templs;
2971 	gw_trans->gw_tmpl->keysz = TEMPL__MAX;
2972 	gw_trans->gw_tmpl->arg = gw_trans;
2973 	gw_trans->gw_tmpl->cb = gw_template;
2974 	error = parse_conf(GOTWEB_CONF, gw_trans->gw_conf);
2975 	if (error)
2976 		goto done;
2977 
2978 	error = gw_parse_querystring(gw_trans);
2979 	if (error)
2980 		goto done;
2981 
2982 	error = gw_display_index(gw_trans);
2983 done:
2984 	if (error) {
2985 		gw_trans->mime = KMIME_TEXT_PLAIN;
2986 		gw_trans->action = GW_ERR;
2987 		gw_display_error(gw_trans, error);
2988 	}
2989 	if (gw_malloc) {
2990 		free(gw_trans->gw_conf->got_repos_path);
2991 		free(gw_trans->gw_conf->got_site_name);
2992 		free(gw_trans->gw_conf->got_site_owner);
2993 		free(gw_trans->gw_conf->got_site_link);
2994 		free(gw_trans->gw_conf->got_logo);
2995 		free(gw_trans->gw_conf->got_logo_url);
2996 		free(gw_trans->gw_conf);
2997 		free(gw_trans->commit);
2998 		free(gw_trans->repo_path);
2999 		free(gw_trans->repo_name);
3000 		free(gw_trans->repo_file);
3001 		free(gw_trans->action_name);
3002 		free(gw_trans->headref);
3003 
3004 		TAILQ_FOREACH_SAFE(dir, &gw_trans->gw_dirs, entry, tdir) {
3005 			free(dir->name);
3006 			free(dir->description);
3007 			free(dir->age);
3008 			free(dir->url);
3009 			free(dir->path);
3010 			free(dir);
3011 		}
3012 
3013 	}
3014 
3015 	khttp_free(gw_trans->gw_req);
3016 	return 0;
3017 }