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 <regex.h>
25 #include <stdarg.h>
26 #include <stdbool.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(dirs, gw_dir) gw_dirs;
58 	struct gw_dir		*gw_dir;
59 	struct gotweb_conf	*gw_conf;
60 	struct ktemplate	*gw_tmpl;
61 	struct khtmlreq		*gw_html_req;
62 	struct kreq		*gw_req;
63 	char			*repo_name;
64 	char			*repo_path;
65 	char			*commit;
66 	char			*repo_file;
67 	char			*repo_folder;
68 	char			*action_name;
69 	char			*headref;
70 	unsigned int		 action;
71 	unsigned int		 page;
72 	unsigned int		 repos_total;
73 	enum kmime		 mime;
74 };
75 
76 enum gw_key {
77 	KEY_ACTION,
78 	KEY_COMMIT_ID,
79 	KEY_FILE,
80 	KEY_FOLDER,
81 	KEY_HEADREF,
82 	KEY_PAGE,
83 	KEY_PATH,
84 	KEY__ZMAX
85 };
86 
87 struct gw_dir {
88 	TAILQ_ENTRY(gw_dir)	 entry;
89 	char			*name;
90 	char			*owner;
91 	char			*description;
92 	char			*url;
93 	char			*age;
94 	char			*path;
95 };
96 
97 enum gw_tmpl {
98 	TEMPL_HEAD,
99 	TEMPL_HEADER,
100 	TEMPL_SITEPATH,
101 	TEMPL_SITEOWNER,
102 	TEMPL_TITLE,
103 	TEMPL_SEARCH,
104 	TEMPL_CONTENT,
105 	TEMPL__MAX
106 };
107 
108 enum gw_ref_tm {
109 	TM_DIFF,
110 	TM_LONG,
111 };
112 
113 enum gw_logs {
114 	LOGBRIEF,
115 	LOGCOMMIT,
116 	LOGFULL,
117 	LOGTREE,
118 	LOGDIFF,
119 	LOGBLAME,
120 	LOGTAG,
121 };
122 
123 enum gw_tags {
124 	TAGBRIEF,
125 	TAGFULL,
126 };
127 
128 static const char *const gw_templs[TEMPL__MAX] = {
129 	"head",
130 	"header",
131 	"sitepath",
132 	"siteowner",
133 	"title",
134 	"search",
135 	"content",
136 };
137 
138 static const struct kvalid gw_keys[KEY__ZMAX] = {
139 	{ kvalid_stringne,	"action" },
140 	{ kvalid_stringne,	"commit" },
141 	{ kvalid_stringne,	"file" },
142 	{ kvalid_stringne,	"folder" },
143 	{ kvalid_stringne,	"headref" },
144 	{ kvalid_int,		"page" },
145 	{ kvalid_stringne,	"path" },
146 };
147 
148 int				 gw_get_repo_log_count(struct gw_trans *,
149 				    char *);
150 
151 static struct gw_dir		*gw_init_gw_dir(char *);
152 
153 static char			*gw_get_repo_description(struct gw_trans *,
154 				    char *);
155 static char			*gw_get_repo_owner(struct gw_trans *,
156 				    char *);
157 static char			*gw_get_time_str(time_t, int);
158 static char			*gw_get_repo_age(struct gw_trans *,
159 				    char *, char *, int);
160 static char			*gw_get_repo_log(struct gw_trans *,
161 				    const char *, char *, int, int);
162 static char			*gw_get_file_blame(struct gw_trans *, char *);
163 static char			*gw_get_repo_tree(struct gw_trans *, char *);
164 static char			*gw_get_repo_diff(struct gw_trans *, char *,
165 				    char *);
166 static char			*gw_get_repo_tags(struct gw_trans *, int, int);
167 static char			*gw_get_repo_heads(struct gw_trans *);
168 static char			*gw_get_clone_url(struct gw_trans *, char *);
169 static char			*gw_get_got_link(struct gw_trans *);
170 static char			*gw_get_site_link(struct gw_trans *);
171 static char			*gw_html_escape(const char *);
172 static char			*gw_colordiff_line(char *);
173 
174 static void			 gw_display_open(struct gw_trans *, enum khttp,
175 				    enum kmime);
176 static void			 gw_display_index(struct gw_trans *,
177 				    const struct got_error *);
178 
179 static int			 gw_template(size_t, void *);
180 
181 static const struct got_error*	 gw_apply_unveil(const char *, const char *);
182 static const struct got_error*	 gw_blame_cb(void *, int, int,
183 				    struct got_object_id *);
184 static const struct got_error*	 gw_load_got_paths(struct gw_trans *);
185 static const struct got_error*	 gw_load_got_path(struct gw_trans *,
186 				    struct gw_dir *);
187 static const struct got_error*	 gw_parse_querystring(struct gw_trans *);
188 static const struct got_error*	 gw_match_logmsg(int *, struct got_object_id *,
189 				    struct got_commit_object *, regex_t *);
190 
191 static const struct got_error*	 gw_blame(struct gw_trans *);
192 static const struct got_error*	 gw_commit(struct gw_trans *);
193 static const struct got_error*	 gw_commitdiff(struct gw_trans *);
194 static const struct got_error*	 gw_index(struct gw_trans *);
195 static const struct got_error*	 gw_log(struct gw_trans *);
196 static const struct got_error*	 gw_raw(struct gw_trans *);
197 static const struct got_error*	 gw_logbriefs(struct gw_trans *);
198 static const struct got_error*	 gw_summary(struct gw_trans *);
199 static const struct got_error*	 gw_tag(struct gw_trans *);
200 static const struct got_error*	 gw_tree(struct gw_trans *);
201 
202 struct gw_query_action {
203 	unsigned int		 func_id;
204 	const char		*func_name;
205 	const struct got_error	*(*func_main)(struct gw_trans *);
206 	char			*template;
207 };
208 
209 enum gw_query_actions {
210 	GW_BLAME,
211 	GW_COMMIT,
212 	GW_COMMITDIFF,
213 	GW_ERR,
214 	GW_INDEX,
215 	GW_LOG,
216 	GW_RAW,
217 	GW_LOGBRIEFS,
218 	GW_SUMMARY,
219 	GW_TAG,
220 	GW_TREE,
221 };
222 
223 static struct gw_query_action gw_query_funcs[] = {
224 	{ GW_BLAME,	 "blame",	gw_blame,	"gw_tmpl/index.tmpl" },
225 	{ GW_COMMIT,	 "commit",	gw_commit,	"gw_tmpl/index.tmpl" },
226 	{ GW_COMMITDIFF, "commitdiff",	gw_commitdiff,	"gw_tmpl/index.tmpl" },
227 	{ GW_ERR,	 NULL,		NULL,		"gw_tmpl/index.tmpl" },
228 	{ GW_INDEX,	 "index",	gw_index,	"gw_tmpl/index.tmpl" },
229 	{ GW_LOG,	 "log",		gw_log,		"gw_tmpl/index.tmpl" },
230 	{ GW_RAW,	 "raw",		gw_raw,		"gw_tmpl/index.tmpl" },
231 	{ GW_LOGBRIEFS,	 "logbriefs",	gw_logbriefs,	"gw_tmpl/index.tmpl" },
232 	{ GW_SUMMARY,	 "summary",	gw_summary,	"gw_tmpl/index.tmpl" },
233 	{ GW_TAG,	 "tag",		gw_tag,		"gw_tmpl/index.tmpl" },
234 	{ GW_TREE,	 "tree",	gw_tree,	"gw_tmpl/index.tmpl" },
235 };
236 
237 static const struct got_error *
238 gw_apply_unveil(const char *repo_path, const char *repo_file)
239 {
240 	const struct got_error *err;
241 
242 	if (repo_path && repo_file) {
243 		char *full_path;
244 		if ((asprintf(&full_path, "%s/%s", repo_path, repo_file)) == -1)
245 			return got_error_from_errno("asprintf unveil");
246 		if (unveil(full_path, "r") != 0)
247 			return got_error_from_errno2("unveil", full_path);
248 	}
249 
250 	if (repo_path && unveil(repo_path, "r") != 0)
251 		return got_error_from_errno2("unveil", repo_path);
252 
253 	if (unveil("/tmp", "rwc") != 0)
254 		return got_error_from_errno2("unveil", "/tmp");
255 
256 	err = got_privsep_unveil_exec_helpers();
257 	if (err != NULL)
258 		return err;
259 
260 	if (unveil(NULL, NULL) != 0)
261 		return got_error_from_errno("unveil");
262 
263 	return NULL;
264 }
265 
266 int
267 gw_get_repo_log_count(struct gw_trans *gw_trans, char *start_commit)
268 {
269 	const struct got_error *error;
270 	struct got_repository *repo = NULL;
271 	struct got_reflist_head refs;
272 	struct got_commit_object *commit = NULL;
273 	struct got_object_id *id = NULL;
274 	struct got_commit_graph *graph = NULL;
275 	char *in_repo_path = NULL, *path = NULL;
276 	int log_count = 0;
277 
278 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
279 	if (error)
280 		return 0;
281 
282 	SIMPLEQ_INIT(&refs);
283 
284 	if (start_commit == NULL) {
285 		struct got_reference *head_ref;
286 		error = got_ref_open(&head_ref, repo, gw_trans->headref, 0);
287 		if (error)
288 			goto done;
289 
290 		error = got_ref_resolve(&id, repo, head_ref);
291 		got_ref_close(head_ref);
292 		if (error)
293 			goto done;
294 
295 		error = got_object_open_as_commit(&commit, repo, id);
296 	} else {
297 		struct got_reference *ref;
298 		error = got_ref_open(&ref, repo, start_commit, 0);
299 		if (error == NULL) {
300 			int obj_type;
301 			error = got_ref_resolve(&id, repo, ref);
302 			got_ref_close(ref);
303 			if (error)
304 				goto done;
305 			error = got_object_get_type(&obj_type, repo, id);
306 			if (error)
307 				goto done;
308 			if (obj_type == GOT_OBJ_TYPE_TAG) {
309 				struct got_tag_object *tag;
310 				error = got_object_open_as_tag(&tag, repo, id);
311 				if (error)
312 					goto done;
313 				if (got_object_tag_get_object_type(tag) !=
314 				    GOT_OBJ_TYPE_COMMIT) {
315 					got_object_tag_close(tag);
316 					error = got_error(GOT_ERR_OBJ_TYPE);
317 					goto done;
318 				}
319 				free(id);
320 				id = got_object_id_dup(
321 				    got_object_tag_get_object_id(tag));
322 				if (id == NULL)
323 					error = got_error_from_errno(
324 					    "got_object_id_dup");
325 				got_object_tag_close(tag);
326 				if (error)
327 					goto done;
328 			} else if (obj_type != GOT_OBJ_TYPE_COMMIT) {
329 				error = got_error(GOT_ERR_OBJ_TYPE);
330 				goto done;
331 			}
332 			error = got_object_open_as_commit(&commit, repo, id);
333 			if (error)
334 				goto done;
335 		}
336 		if (commit == NULL) {
337 			error = got_repo_match_object_id_prefix(&id,
338 			    start_commit, GOT_OBJ_TYPE_COMMIT, repo);
339 			if (error)
340 				goto done;
341 		}
342 		error = got_repo_match_object_id_prefix(&id,
343 			    start_commit, GOT_OBJ_TYPE_COMMIT, repo);
344 			if (error)
345 				goto done;
346 	}
347 
348 	error = got_object_open_as_commit(&commit, repo, id);
349 	if (error)
350 		goto done;
351 
352 	error = got_repo_map_path(&in_repo_path, repo, gw_trans->repo_path, 1);
353 	if (error)
354 		goto done;
355 
356 	if (in_repo_path) {
357 		free(path);
358 		path = in_repo_path;
359 	}
360 
361 	error = got_ref_list(&refs, repo, NULL, got_ref_cmp_by_name, NULL);
362 	if (error)
363 		goto done;
364 
365 	error = got_commit_graph_open(&graph, path, 0);
366 	if (error)
367 		goto done;
368 
369 	error = got_commit_graph_iter_start(graph, id, repo, NULL, NULL);
370 	if (error)
371 		goto done;
372 
373 	for (;;) {
374 		error = got_commit_graph_iter_next(&id, graph, repo, NULL,
375 		    NULL);
376 		if (error) {
377 			if (error->code == GOT_ERR_ITER_COMPLETED)
378 				error = NULL;
379 			break;
380 		}
381 		if (id == NULL)
382 			break;
383 
384 		if (error)
385 			break;
386 		log_count++;
387 	}
388 done:
389 	free(in_repo_path);
390 	if (graph)
391 		got_commit_graph_close(graph);
392 	if (repo) {
393 		error = got_repo_close(repo);
394 		if (error)
395 			return 0;
396 	}
397 	if (error) {
398 		khttp_puts(gw_trans->gw_req, "Error: ");
399 		khttp_puts(gw_trans->gw_req, error->msg);
400 		return 0;
401 	} else
402 		return log_count;
403 }
404 
405 static const struct got_error *
406 gw_blame(struct gw_trans *gw_trans)
407 {
408 	const struct got_error *error = NULL;
409 
410 	char *log, *log_html;
411 
412 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
413 	if (error)
414 		return error;
415 
416 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit, 1, LOGBLAME);
417 
418 	if (log != NULL && strcmp(log, "") != 0) {
419 		if ((asprintf(&log_html, log_blame, log)) == -1)
420 			return got_error_from_errno("asprintf");
421 		khttp_puts(gw_trans->gw_req, log_html);
422 		free(log_html);
423 		free(log);
424 	}
425 	return error;
426 }
427 
428 static const struct got_error *
429 gw_commit(struct gw_trans *gw_trans)
430 {
431 	const struct got_error *error = NULL;
432 	char *log, *log_html;
433 
434 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
435 	if (error)
436 		return error;
437 
438 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit, 1, LOGCOMMIT);
439 
440 	if (log != NULL && strcmp(log, "") != 0) {
441 		if ((asprintf(&log_html, log_commit, log)) == -1)
442 			return got_error_from_errno("asprintf");
443 		khttp_puts(gw_trans->gw_req, log_html);
444 		free(log_html);
445 		free(log);
446 	}
447 	return error;
448 }
449 
450 static const struct got_error *
451 gw_commitdiff(struct gw_trans *gw_trans)
452 {
453 	const struct got_error *error = NULL;
454 	char *log, *log_html;
455 
456 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
457 	if (error)
458 		return error;
459 
460 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit, 1, LOGDIFF);
461 
462 	if (log != NULL && strcmp(log, "") != 0) {
463 		if ((asprintf(&log_html, log_diff, log)) == -1)
464 			return got_error_from_errno("asprintf");
465 		khttp_puts(gw_trans->gw_req, log_html);
466 		free(log_html);
467 		free(log);
468 	}
469 	return error;
470 }
471 
472 static const struct got_error *
473 gw_index(struct gw_trans *gw_trans)
474 {
475 	const struct got_error *error = NULL;
476 	struct gw_dir *gw_dir = NULL;
477 	char *html, *navs, *next, *prev;
478 	unsigned int prev_disp = 0, next_disp = 1, dir_c = 0;
479 
480 	error = gw_apply_unveil(gw_trans->gw_conf->got_repos_path, NULL);
481 	if (error)
482 		return error;
483 
484 	error = gw_load_got_paths(gw_trans);
485 	if (error)
486 		return error;
487 
488 	khttp_puts(gw_trans->gw_req, index_projects_header);
489 
490 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry)
491 		dir_c++;
492 
493 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry) {
494 		if (gw_trans->page > 0 && (gw_trans->page *
495 		    gw_trans->gw_conf->got_max_repos_display) > prev_disp) {
496 			prev_disp++;
497 			continue;
498 		}
499 
500 		prev_disp++;
501 		if((asprintf(&navs, index_navs, gw_dir->name, gw_dir->name,
502 		    gw_dir->name, gw_dir->name)) == -1)
503 			return got_error_from_errno("asprintf");
504 
505 		if ((asprintf(&html, index_projects, gw_dir->name, gw_dir->name,
506 		    gw_dir->description, gw_dir->owner, gw_dir->age,
507 		    navs)) == -1)
508 			return got_error_from_errno("asprintf");
509 
510 		khttp_puts(gw_trans->gw_req, html);
511 
512 		free(navs);
513 		free(html);
514 
515 		if (gw_trans->gw_conf->got_max_repos_display == 0)
516 			continue;
517 
518 		if (next_disp == gw_trans->gw_conf->got_max_repos_display)
519 			khttp_puts(gw_trans->gw_req, np_wrapper_start);
520 		else if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
521 		    (gw_trans->page > 0) &&
522 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
523 		    prev_disp == gw_trans->repos_total))
524 			khttp_puts(gw_trans->gw_req, np_wrapper_start);
525 
526 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
527 		    (gw_trans->page > 0) &&
528 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
529 		    prev_disp == gw_trans->repos_total)) {
530 			if ((asprintf(&prev, nav_prev,
531 			    gw_trans->page - 1)) == -1)
532 				return got_error_from_errno("asprintf");
533 			khttp_puts(gw_trans->gw_req, prev);
534 			free(prev);
535 		}
536 
537 		khttp_puts(gw_trans->gw_req, div_end);
538 
539 		if (gw_trans->gw_conf->got_max_repos_display > 0 &&
540 		    next_disp == gw_trans->gw_conf->got_max_repos_display &&
541 		    dir_c != (gw_trans->page + 1) *
542 		    gw_trans->gw_conf->got_max_repos_display) {
543 			if ((asprintf(&next, nav_next,
544 			    gw_trans->page + 1)) == -1)
545 				return got_error_from_errno("calloc");
546 			khttp_puts(gw_trans->gw_req, next);
547 			khttp_puts(gw_trans->gw_req, div_end);
548 			free(next);
549 			next_disp = 0;
550 			break;
551 		}
552 
553 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
554 		    (gw_trans->page > 0) &&
555 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
556 		    prev_disp == gw_trans->repos_total))
557 			khttp_puts(gw_trans->gw_req, div_end);
558 
559 		next_disp++;
560 	}
561 	return error;
562 }
563 
564 static const struct got_error *
565 gw_log(struct gw_trans *gw_trans)
566 {
567 	const struct got_error *error = NULL;
568 	char *log, *log_html;
569 
570 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
571 	if (error)
572 		return error;
573 
574 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit,
575 	    gw_trans->gw_conf->got_max_commits_display, LOGFULL);
576 
577 	if (log != NULL && strcmp(log, "") != 0) {
578 		if ((asprintf(&log_html, logs, log)) == -1)
579 			return got_error_from_errno("asprintf");
580 		khttp_puts(gw_trans->gw_req, log_html);
581 		free(log_html);
582 		free(log);
583 	}
584 	return error;
585 }
586 
587 static const struct got_error *
588 gw_raw(struct gw_trans *gw_trans)
589 {
590 	const struct got_error *error = NULL;
591 
592 	return error;
593 }
594 
595 static const struct got_error *
596 gw_logbriefs(struct gw_trans *gw_trans)
597 {
598 	const struct got_error *error = NULL;
599 	char *log, *log_html;
600 
601 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
602 	if (error)
603 		return error;
604 
605 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit,
606 	    gw_trans->gw_conf->got_max_commits_display, LOGBRIEF);
607 
608 	if (log != NULL && strcmp(log, "") != 0) {
609 		if ((asprintf(&log_html, summary_logbriefs,
610 		    log)) == -1)
611 			return got_error_from_errno("asprintf");
612 		khttp_puts(gw_trans->gw_req, log_html);
613 		free(log_html);
614 		free(log);
615 	}
616 	return error;
617 }
618 
619 static const struct got_error *
620 gw_summary(struct gw_trans *gw_trans)
621 {
622 	const struct got_error *error = NULL;
623 	char *description_html, *repo_owner_html, *repo_age_html,
624 	     *cloneurl_html, *log, *log_html, *tags, *heads, *tags_html,
625 	     *heads_html, *age;
626 
627 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
628 	if (error)
629 		return error;
630 
631 	khttp_puts(gw_trans->gw_req, summary_wrapper);
632 	if (gw_trans->gw_conf->got_show_repo_description) {
633 		if (gw_trans->gw_dir->description != NULL &&
634 		    (strcmp(gw_trans->gw_dir->description, "") != 0)) {
635 			if ((asprintf(&description_html, description,
636 			    gw_trans->gw_dir->description)) == -1)
637 				return got_error_from_errno("asprintf");
638 
639 			khttp_puts(gw_trans->gw_req, description_html);
640 			free(description_html);
641 		}
642 	}
643 
644 	if (gw_trans->gw_conf->got_show_repo_owner) {
645 		if (gw_trans->gw_dir->owner != NULL &&
646 		    (strcmp(gw_trans->gw_dir->owner, "") != 0)) {
647 			if ((asprintf(&repo_owner_html, repo_owner,
648 			    gw_trans->gw_dir->owner)) == -1)
649 				return got_error_from_errno("asprintf");
650 
651 			khttp_puts(gw_trans->gw_req, repo_owner_html);
652 			free(repo_owner_html);
653 		}
654 	}
655 
656 	if (gw_trans->gw_conf->got_show_repo_age) {
657 		age = gw_get_repo_age(gw_trans, gw_trans->gw_dir->path,
658 		    "refs/heads", TM_LONG);
659 		if (age != NULL && (strcmp(age, "") != 0)) {
660 			if ((asprintf(&repo_age_html, last_change, age)) == -1)
661 				return got_error_from_errno("asprintf");
662 
663 			khttp_puts(gw_trans->gw_req, repo_age_html);
664 			free(repo_age_html);
665 			free(age);
666 		}
667 	}
668 
669 	if (gw_trans->gw_conf->got_show_repo_cloneurl) {
670 		if (gw_trans->gw_dir->url != NULL &&
671 		    (strcmp(gw_trans->gw_dir->url, "") != 0)) {
672 			if ((asprintf(&cloneurl_html, cloneurl,
673 			    gw_trans->gw_dir->url)) == -1)
674 				return got_error_from_errno("asprintf");
675 
676 			khttp_puts(gw_trans->gw_req, cloneurl_html);
677 			free(cloneurl_html);
678 		}
679 	}
680 	khttp_puts(gw_trans->gw_req, div_end);
681 
682 	log = gw_get_repo_log(gw_trans, NULL, NULL, D_MAXSLCOMMDISP, 0);
683 	tags = gw_get_repo_tags(gw_trans, D_MAXSLCOMMDISP, TAGBRIEF);
684 	heads = gw_get_repo_heads(gw_trans);
685 
686 	if (log != NULL && strcmp(log, "") != 0) {
687 		if ((asprintf(&log_html, summary_logbriefs,
688 		    log)) == -1)
689 			return got_error_from_errno("asprintf");
690 		khttp_puts(gw_trans->gw_req, log_html);
691 		free(log_html);
692 		free(log);
693 	}
694 
695 	if (tags != NULL && strcmp(tags, "") != 0) {
696 		if ((asprintf(&tags_html, summary_tags,
697 		    tags)) == -1)
698 			return got_error_from_errno("asprintf");
699 		khttp_puts(gw_trans->gw_req, tags_html);
700 		free(tags_html);
701 		free(tags);
702 	}
703 
704 	if (heads != NULL && strcmp(heads, "") != 0) {
705 		if ((asprintf(&heads_html, summary_heads,
706 		    heads)) == -1)
707 			return got_error_from_errno("asprintf");
708 		khttp_puts(gw_trans->gw_req, heads_html);
709 		free(heads_html);
710 		free(heads);
711 	}
712 	return error;
713 }
714 
715 static const struct got_error *
716 gw_tag(struct gw_trans *gw_trans)
717 {
718 	const struct got_error *error = NULL;
719 	char *log, *log_html;
720 
721 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
722 	if (error)
723 		return error;
724 
725 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit, 1, LOGTAG);
726 
727 	if (log != NULL && strcmp(log, "") != 0) {
728 		if ((asprintf(&log_html, log_tag, log)) == -1)
729 			return got_error_from_errno("asprintf");
730 		khttp_puts(gw_trans->gw_req, log_html);
731 		free(log_html);
732 		free(log);
733 	}
734 	return error;
735 }
736 
737 static const struct got_error *
738 gw_tree(struct gw_trans *gw_trans)
739 {
740 	const struct got_error *error = NULL;
741 	char *log, *log_html;
742 
743 	error = gw_apply_unveil(gw_trans->gw_dir->path, NULL);
744 	if (error)
745 		return error;
746 
747 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit, 1, LOGTREE);
748 
749 	if (log != NULL && strcmp(log, "") != 0) {
750 		if ((asprintf(&log_html, log_tree, log)) == -1)
751 			return got_error_from_errno("asprintf");
752 		khttp_puts(gw_trans->gw_req, log_html);
753 		free(log_html);
754 		free(log);
755 	}
756 	return error;
757 }
758 
759 static const struct got_error *
760 gw_load_got_path(struct gw_trans *gw_trans, struct gw_dir *gw_dir)
761 {
762 	const struct got_error *error = NULL;
763 	DIR *dt;
764 	char *dir_test;
765 	int opened = 0;
766 
767 	if ((asprintf(&dir_test, "%s/%s/%s",
768 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
769 	    GOTWEB_GIT_DIR)) == -1)
770 		return got_error_from_errno("asprintf");
771 
772 	dt = opendir(dir_test);
773 	if (dt == NULL) {
774 		free(dir_test);
775 	} else {
776 		gw_dir->path = strdup(dir_test);
777 		opened = 1;
778 		goto done;
779 	}
780 
781 	if ((asprintf(&dir_test, "%s/%s/%s",
782 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
783 	    GOTWEB_GOT_DIR)) == -1)
784 		return got_error_from_errno("asprintf");
785 
786 	dt = opendir(dir_test);
787 	if (dt == NULL)
788 		free(dir_test);
789 	else {
790 		opened = 1;
791 		error = got_error(GOT_ERR_NOT_GIT_REPO);
792 		goto errored;
793 	}
794 
795 	if ((asprintf(&dir_test, "%s/%s",
796 	    gw_trans->gw_conf->got_repos_path, gw_dir->name)) == -1)
797 		return got_error_from_errno("asprintf");
798 
799 	gw_dir->path = strdup(dir_test);
800 
801 done:
802 	gw_dir->description = gw_get_repo_description(gw_trans,
803 	    gw_dir->path);
804 	gw_dir->owner = gw_get_repo_owner(gw_trans, gw_dir->path);
805 	gw_dir->age = gw_get_repo_age(gw_trans, gw_dir->path, "refs/heads",
806 	    TM_DIFF);
807 	gw_dir->url = gw_get_clone_url(gw_trans, gw_dir->path);
808 
809 errored:
810 	free(dir_test);
811 	if (opened)
812 		closedir(dt);
813 	return error;
814 }
815 
816 static const struct got_error *
817 gw_load_got_paths(struct gw_trans *gw_trans)
818 {
819 	const struct got_error *error = NULL;
820 	DIR *d;
821 	struct dirent **sd_dent;
822 	struct gw_dir *gw_dir;
823 	struct stat st;
824 	unsigned int d_cnt, d_i;
825 
826 	d = opendir(gw_trans->gw_conf->got_repos_path);
827 	if (d == NULL) {
828 		error = got_error_from_errno2("opendir",
829 		    gw_trans->gw_conf->got_repos_path);
830 		return error;
831 	}
832 
833 	d_cnt = scandir(gw_trans->gw_conf->got_repos_path, &sd_dent, NULL,
834 	    alphasort);
835 	if (d_cnt == -1) {
836 		error = got_error_from_errno2("scandir",
837 		    gw_trans->gw_conf->got_repos_path);
838 		return error;
839 	}
840 
841 	for (d_i = 0; d_i < d_cnt; d_i++) {
842 		if (gw_trans->gw_conf->got_max_repos > 0 &&
843 		    (d_i - 2) == gw_trans->gw_conf->got_max_repos)
844 			break; /* account for parent and self */
845 
846 		if (strcmp(sd_dent[d_i]->d_name, ".") == 0 ||
847 		    strcmp(sd_dent[d_i]->d_name, "..") == 0)
848 			continue;
849 
850 		if ((gw_dir = gw_init_gw_dir(sd_dent[d_i]->d_name)) == NULL)
851 			return got_error_from_errno("gw_dir malloc");
852 
853 		error = gw_load_got_path(gw_trans, gw_dir);
854 		if (error && error->code == GOT_ERR_NOT_GIT_REPO)
855 			continue;
856 		else if (error)
857 			return error;
858 
859 		if (lstat(gw_dir->path, &st) == 0 && S_ISDIR(st.st_mode) &&
860 		    !got_path_dir_is_empty(gw_dir->path)) {
861 			TAILQ_INSERT_TAIL(&gw_trans->gw_dirs, gw_dir,
862 			    entry);
863 			gw_trans->repos_total++;
864 		}
865 	}
866 
867 	closedir(d);
868 	return error;
869 }
870 
871 static const struct got_error *
872 gw_parse_querystring(struct gw_trans *gw_trans)
873 {
874 	const struct got_error *error = NULL;
875 	struct kpair *p;
876 	struct gw_query_action *action = NULL;
877 	unsigned int i;
878 
879 	if (gw_trans->gw_req->fieldnmap[0]) {
880 		error = got_error_from_errno("bad parse");
881 		return error;
882 	} else if ((p = gw_trans->gw_req->fieldmap[KEY_PATH])) {
883 		/* define gw_trans->repo_path */
884 		if ((asprintf(&gw_trans->repo_name, "%s", p->parsed.s)) == -1)
885 			return got_error_from_errno("asprintf");
886 
887 		if ((asprintf(&gw_trans->repo_path, "%s/%s",
888 		    gw_trans->gw_conf->got_repos_path, p->parsed.s)) == -1)
889 			return got_error_from_errno("asprintf");
890 
891 		/* get action and set function */
892 		if ((p = gw_trans->gw_req->fieldmap[KEY_ACTION]))
893 			for (i = 0; i < nitems(gw_query_funcs); i++) {
894 				action = &gw_query_funcs[i];
895 				if (action->func_name == NULL)
896 					continue;
897 
898 				if (strcmp(action->func_name,
899 				    p->parsed.s) == 0) {
900 					gw_trans->action = i;
901 					if ((asprintf(&gw_trans->action_name,
902 					    "%s", action->func_name)) == -1)
903 						return
904 						    got_error_from_errno(
905 						    "asprintf");
906 
907 					break;
908 				}
909 
910 				action = NULL;
911 			}
912 
913  		if ((p = gw_trans->gw_req->fieldmap[KEY_COMMIT_ID]))
914 			if ((asprintf(&gw_trans->commit, "%s",
915 			    p->parsed.s)) == -1)
916 				return got_error_from_errno("asprintf");
917 
918 		if ((p = gw_trans->gw_req->fieldmap[KEY_FILE]))
919 			if ((asprintf(&gw_trans->repo_file, "%s",
920 			    p->parsed.s)) == -1)
921 				return got_error_from_errno("asprintf");
922 
923 		if ((p = gw_trans->gw_req->fieldmap[KEY_FOLDER]))
924 			if ((asprintf(&gw_trans->repo_folder, "%s",
925 			    p->parsed.s)) == -1)
926 				return got_error_from_errno("asprintf");
927 
928 		if ((p = gw_trans->gw_req->fieldmap[KEY_HEADREF]))
929 			if ((asprintf(&gw_trans->headref, "%s",
930 			    p->parsed.s)) == -1)
931 				return got_error_from_errno("asprintf");
932 
933 		if (action == NULL) {
934 			error = got_error_from_errno("invalid action");
935 			return error;
936 		}
937 		if ((gw_trans->gw_dir =
938 		    gw_init_gw_dir(gw_trans->repo_name)) == NULL)
939 			return got_error_from_errno("gw_dir malloc");
940 
941 		error = gw_load_got_path(gw_trans, gw_trans->gw_dir);
942 		if (error)
943 			return error;
944 	} else
945 		gw_trans->action = GW_INDEX;
946 
947 	if ((p = gw_trans->gw_req->fieldmap[KEY_PAGE]))
948 		gw_trans->page = p->parsed.i;
949 
950 	if (gw_trans->action == GW_RAW)
951 		gw_trans->mime = KMIME_TEXT_PLAIN;
952 
953 	return error;
954 }
955 
956 static struct gw_dir *
957 gw_init_gw_dir(char *dir)
958 {
959 	struct gw_dir *gw_dir;
960 
961 	if ((gw_dir = malloc(sizeof(*gw_dir))) == NULL)
962 		return NULL;
963 
964 	if ((asprintf(&gw_dir->name, "%s", dir)) == -1)
965 		return NULL;
966 
967 	return gw_dir;
968 }
969 
970 static const struct got_error*
971 gw_match_logmsg(int *have_match, struct got_object_id *id,
972     struct got_commit_object *commit, regex_t *regex)
973 {
974 	const struct got_error *err = NULL;
975 	regmatch_t regmatch;
976 	char *id_str = NULL, *logmsg = NULL;
977 
978 	*have_match = 0;
979 
980 	err = got_object_id_str(&id_str, id);
981 	if (err)
982 		return err;
983 
984 	err = got_object_commit_get_logmsg(&logmsg, commit);
985 	if (err)
986 		goto done;
987 
988 	if (regexec(regex, logmsg, 1, &regmatch, 0) == 0)
989 		*have_match = 1;
990 done:
991 	free(id_str);
992 	free(logmsg);
993 	return err;
994 }
995 
996 static void
997 gw_display_open(struct gw_trans *gw_trans, enum khttp code, enum kmime mime)
998 {
999 	khttp_head(gw_trans->gw_req, kresps[KRESP_ALLOW], "GET");
1000 	khttp_head(gw_trans->gw_req, kresps[KRESP_STATUS], "%s",
1001 	    khttps[code]);
1002 	khttp_head(gw_trans->gw_req, kresps[KRESP_CONTENT_TYPE], "%s",
1003 	    kmimetypes[mime]);
1004 	khttp_head(gw_trans->gw_req, "X-Content-Type-Options", "nosniff");
1005 	khttp_head(gw_trans->gw_req, "X-Frame-Options", "DENY");
1006 	khttp_head(gw_trans->gw_req, "X-XSS-Protection", "1; mode=block");
1007 	khttp_body(gw_trans->gw_req);
1008 }
1009 
1010 static void
1011 gw_display_index(struct gw_trans *gw_trans, const struct got_error *err)
1012 {
1013 	gw_display_open(gw_trans, KHTTP_200, gw_trans->mime);
1014 	khtml_open(gw_trans->gw_html_req, gw_trans->gw_req, 0);
1015 
1016 	if (err)
1017 		khttp_puts(gw_trans->gw_req, err->msg);
1018 	else
1019 		khttp_template(gw_trans->gw_req, gw_trans->gw_tmpl,
1020 		    gw_query_funcs[gw_trans->action].template);
1021 
1022 	khtml_close(gw_trans->gw_html_req);
1023 }
1024 
1025 static int
1026 gw_template(size_t key, void *arg)
1027 {
1028 	const struct got_error *error = NULL;
1029 	struct gw_trans *gw_trans = arg;
1030 	char *gw_got_link, *gw_site_link;
1031 	char *site_owner_name, *site_owner_name_h;
1032 
1033 	switch (key) {
1034 	case (TEMPL_HEAD):
1035 		khttp_puts(gw_trans->gw_req, head);
1036 		break;
1037 	case(TEMPL_HEADER):
1038 		gw_got_link = gw_get_got_link(gw_trans);
1039 		if (gw_got_link != NULL)
1040 			khttp_puts(gw_trans->gw_req, gw_got_link);
1041 
1042 		free(gw_got_link);
1043 		break;
1044 	case (TEMPL_SITEPATH):
1045 		gw_site_link = gw_get_site_link(gw_trans);
1046 		if (gw_site_link != NULL)
1047 			khttp_puts(gw_trans->gw_req, gw_site_link);
1048 
1049 		free(gw_site_link);
1050 		break;
1051 	case(TEMPL_TITLE):
1052 		if (gw_trans->gw_conf->got_site_name != NULL)
1053 			khtml_puts(gw_trans->gw_html_req,
1054 			    gw_trans->gw_conf->got_site_name);
1055 
1056 		break;
1057 	case (TEMPL_SEARCH):
1058 		khttp_puts(gw_trans->gw_req, search);
1059 		break;
1060 	case(TEMPL_SITEOWNER):
1061 		if (gw_trans->gw_conf->got_site_owner != NULL &&
1062 		    gw_trans->gw_conf->got_show_site_owner) {
1063 			site_owner_name =
1064 			    gw_html_escape(gw_trans->gw_conf->got_site_owner);
1065 			if ((asprintf(&site_owner_name_h, site_owner,
1066 			    site_owner_name))
1067 			    == -1)
1068 				return 0;
1069 
1070 			khttp_puts(gw_trans->gw_req, site_owner_name_h);
1071 			free(site_owner_name);
1072 			free(site_owner_name_h);
1073 		}
1074 		break;
1075 	case(TEMPL_CONTENT):
1076 		error = gw_query_funcs[gw_trans->action].func_main(gw_trans);
1077 		if (error)
1078 			khttp_puts(gw_trans->gw_req, error->msg);
1079 
1080 		break;
1081 	default:
1082 		return 0;
1083 		break;
1084 	}
1085 	return 1;
1086 }
1087 
1088 static char *
1089 gw_get_repo_description(struct gw_trans *gw_trans, char *dir)
1090 {
1091 	FILE *f;
1092 	char *description = NULL, *d_file = NULL;
1093 	unsigned int len;
1094 
1095 	if (gw_trans->gw_conf->got_show_repo_description == false)
1096 		goto err;
1097 
1098 	if ((asprintf(&d_file, "%s/description", dir)) == -1)
1099 		goto err;
1100 
1101 	if ((f = fopen(d_file, "r")) == NULL)
1102 		goto err;
1103 
1104 	fseek(f, 0, SEEK_END);
1105 	len = ftell(f) + 1;
1106 	fseek(f, 0, SEEK_SET);
1107 	if ((description = calloc(len, sizeof(char *))) == NULL)
1108 		goto err;
1109 
1110 	fread(description, 1, len, f);
1111 	fclose(f);
1112 	free(d_file);
1113 	return description;
1114 err:
1115 	if ((asprintf(&description, "%s", "")) == -1)
1116 		return NULL;
1117 
1118 	return description;
1119 }
1120 
1121 static char *
1122 gw_get_time_str(time_t committer_time, int ref_tm)
1123 {
1124 	struct tm tm;
1125 	time_t diff_time;
1126 	char *years = "years ago", *months = "months ago";
1127 	char *weeks = "weeks ago", *days = "days ago", *hours = "hours ago";
1128 	char *minutes = "minutes ago", *seconds = "seconds ago";
1129 	char *now = "right now";
1130 	char *repo_age, *s;
1131 	char datebuf[29];
1132 
1133 	switch (ref_tm) {
1134 	case TM_DIFF:
1135 		diff_time = time(NULL) - committer_time;
1136 		if (diff_time > 60 * 60 * 24 * 365 * 2) {
1137 			if ((asprintf(&repo_age, "%lld %s",
1138 			    (diff_time / 60 / 60 / 24 / 365), years)) == -1)
1139 				return NULL;
1140 		} else if (diff_time > 60 * 60 * 24 * (365 / 12) * 2) {
1141 			if ((asprintf(&repo_age, "%lld %s",
1142 			    (diff_time / 60 / 60 / 24 / (365 / 12)),
1143 			    months)) == -1)
1144 				return NULL;
1145 		} else if (diff_time > 60 * 60 * 24 * 7 * 2) {
1146 			if ((asprintf(&repo_age, "%lld %s",
1147 			    (diff_time / 60 / 60 / 24 / 7), weeks)) == -1)
1148 				return NULL;
1149 		} else if (diff_time > 60 * 60 * 24 * 2) {
1150 			if ((asprintf(&repo_age, "%lld %s",
1151 			    (diff_time / 60 / 60 / 24), days)) == -1)
1152 				return NULL;
1153 		} else if (diff_time > 60 * 60 * 2) {
1154 			if ((asprintf(&repo_age, "%lld %s",
1155 			    (diff_time / 60 / 60), hours)) == -1)
1156 				return NULL;
1157 		} else if (diff_time > 60 * 2) {
1158 			if ((asprintf(&repo_age, "%lld %s", (diff_time / 60),
1159 			    minutes)) == -1)
1160 				return NULL;
1161 		} else if (diff_time > 2) {
1162 			if ((asprintf(&repo_age, "%lld %s", diff_time,
1163 			    seconds)) == -1)
1164 				return NULL;
1165 		} else {
1166 			if ((asprintf(&repo_age, "%s", now)) == -1)
1167 				return NULL;
1168 		}
1169 		break;
1170 	case TM_LONG:
1171 		if (gmtime_r(&committer_time, &tm) == NULL)
1172 			return NULL;
1173 
1174 		s = asctime_r(&tm, datebuf);
1175 		if (s == NULL)
1176 			return NULL;
1177 
1178 		if ((asprintf(&repo_age, "%s UTC", datebuf)) == -1)
1179 			return NULL;
1180 		break;
1181 	}
1182 	return repo_age;
1183 }
1184 
1185 static char *
1186 gw_get_repo_age(struct gw_trans *gw_trans, char *dir, char *repo_ref,
1187     int ref_tm)
1188 {
1189 	const struct got_error *error = NULL;
1190 	struct got_object_id *id = NULL;
1191 	struct got_repository *repo = NULL;
1192 	struct got_commit_object *commit = NULL;
1193 	struct got_reflist_head refs;
1194 	struct got_reflist_entry *re;
1195 	struct got_reference *head_ref;
1196 	int is_head = 0;
1197 	time_t committer_time = 0, cmp_time = 0;
1198 	const char *refname;
1199 	char *repo_age = NULL;
1200 
1201 	if (repo_ref == NULL)
1202 		return NULL;
1203 
1204 	if (strncmp(repo_ref, "refs/heads/", 11) == 0)
1205 		is_head = 1;
1206 
1207 	SIMPLEQ_INIT(&refs);
1208 	if (gw_trans->gw_conf->got_show_repo_age == false) {
1209 		if ((asprintf(&repo_age, "")) == -1)
1210 			return NULL;
1211 		return repo_age;
1212 	}
1213 
1214 	error = got_repo_open(&repo, dir, NULL);
1215 	if (error)
1216 		goto err;
1217 
1218 	if (is_head)
1219 		error = got_ref_list(&refs, repo, "refs/heads",
1220 		    got_ref_cmp_by_name, NULL);
1221 	else
1222 		error = got_ref_list(&refs, repo, repo_ref,
1223 		    got_ref_cmp_by_name, NULL);
1224 	if (error)
1225 		goto err;
1226 
1227 	SIMPLEQ_FOREACH(re, &refs, entry) {
1228 		if (is_head)
1229 			refname = strdup(repo_ref);
1230 		else
1231 			refname = got_ref_get_name(re->ref);
1232 		error = got_ref_open(&head_ref, repo, refname, 0);
1233 		if (error)
1234 			goto err;
1235 
1236 		error = got_ref_resolve(&id, repo, head_ref);
1237 		got_ref_close(head_ref);
1238 		if (error)
1239 			goto err;
1240 
1241 		error = got_object_open_as_commit(&commit, repo, id);
1242 		if (error)
1243 			goto err;
1244 
1245 		committer_time =
1246 		    got_object_commit_get_committer_time(commit);
1247 
1248 		if (cmp_time < committer_time)
1249 			cmp_time = committer_time;
1250 	}
1251 
1252 	if (cmp_time != 0) {
1253 		committer_time = cmp_time;
1254 		repo_age = gw_get_time_str(committer_time, ref_tm);
1255 	} else
1256 		if ((asprintf(&repo_age, "")) == -1)
1257 			return NULL;
1258 	got_ref_list_free(&refs);
1259 	free(id);
1260 	return repo_age;
1261 err:
1262 	if ((asprintf(&repo_age, "%s", error->msg)) == -1)
1263 		return NULL;
1264 
1265 	return repo_age;
1266 }
1267 
1268 static char *
1269 gw_get_repo_diff(struct gw_trans *gw_trans, char *id_str1, char *id_str2)
1270 {
1271 	const struct got_error *error;
1272 	FILE *f = NULL;
1273 	struct got_object_id *id1 = NULL, *id2 = NULL;
1274 	struct got_repository *repo = NULL;
1275 	struct buf *diffbuf = NULL;
1276 	char *label1 = NULL, *label2 = NULL, *diff_html = NULL, *buf = NULL,
1277 	     *buf_color = NULL;
1278 	int type1, type2;
1279 	size_t newsize;
1280 
1281 	f = got_opentemp();
1282 	if (f == NULL)
1283 		return NULL;
1284 
1285 	error = buf_alloc(&diffbuf, 0);
1286 	if (error)
1287 		return NULL;
1288 
1289 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
1290 	if (error)
1291 		goto done;
1292 
1293 	error = got_repo_match_object_id(&id1, &label1, id_str1,
1294 	    GOT_OBJ_TYPE_ANY, 1, repo);
1295 	if (error)
1296 		goto done;
1297 
1298 	if (id_str2) {
1299 		error = got_repo_match_object_id(&id2, &label2, id_str2,
1300 		    GOT_OBJ_TYPE_ANY, 1, repo);
1301 		if (error)
1302 			goto done;
1303 
1304 		error = got_object_get_type(&type2, repo, id2);
1305 		if (error)
1306 			goto done;
1307 	}
1308 
1309 	error = got_object_get_type(&type1, repo, id1);
1310 	if (error)
1311 		goto done;
1312 
1313 	if (id_str2 && type1 != type2) {
1314 		error = got_error(GOT_ERR_OBJ_TYPE);
1315 		goto done;
1316 	}
1317 
1318 	switch (type1) {
1319 	case GOT_OBJ_TYPE_BLOB:
1320 		error = got_diff_objects_as_blobs(id2, id1, NULL, NULL, 3, 0,
1321 		    repo, f);
1322 		break;
1323 	case GOT_OBJ_TYPE_TREE:
1324 		error = got_diff_objects_as_trees(id2, id1, "", "", 3, 0, repo,
1325 		    f);
1326 		break;
1327 	case GOT_OBJ_TYPE_COMMIT:
1328 		error = got_diff_objects_as_commits(id2, id1, 3, 0, repo, f);
1329 		break;
1330 	default:
1331 		error = got_error(GOT_ERR_OBJ_TYPE);
1332 	}
1333 
1334 	if ((buf = calloc(128, sizeof(char *))) == NULL)
1335 		goto done;
1336 
1337 	fseek(f, 0, SEEK_SET);
1338 
1339 	while ((fgets(buf, 128, f)) != NULL) {
1340 		buf_color = gw_colordiff_line(buf);
1341 		error = buf_puts(&newsize, diffbuf, buf_color);
1342 		if (error)
1343 			return NULL;
1344 
1345 		error = buf_puts(&newsize, diffbuf, div_end);
1346 		if (error)
1347 			return NULL;
1348 	}
1349 
1350 	if (buf_len(diffbuf) > 0) {
1351 		error = buf_putc(diffbuf, '\0');
1352 		diff_html = strdup(buf_get(diffbuf));
1353 	}
1354 done:
1355 	fclose(f);
1356 	free(buf_color);
1357 	free(buf);
1358 	free(diffbuf);
1359 	free(label1);
1360 	free(label2);
1361 	free(id1);
1362 	free(id2);
1363 	if (repo)
1364 		got_repo_close(repo);
1365 
1366 	if (error)
1367 		return NULL;
1368 	else
1369 		return diff_html;
1370 }
1371 
1372 static char *
1373 gw_get_repo_owner(struct gw_trans *gw_trans, char *dir)
1374 {
1375 	FILE *f;
1376 	char *owner = NULL, *d_file = NULL;
1377 	char *gotweb = "[gotweb]", *gitweb = "[gitweb]", *gw_owner = "owner";
1378 	char *comp, *pos, *buf;
1379 	unsigned int i;
1380 
1381 	if (gw_trans->gw_conf->got_show_repo_owner == false)
1382 		goto err;
1383 
1384 	if ((asprintf(&d_file, "%s/config", dir)) == -1)
1385 		goto err;
1386 
1387 	if ((f = fopen(d_file, "r")) == NULL)
1388 		goto err;
1389 
1390 	if ((buf = calloc(128, sizeof(char *))) == NULL)
1391 		goto err;
1392 
1393 	while ((fgets(buf, 128, f)) != NULL) {
1394 		if ((pos = strstr(buf, gotweb)) != NULL)
1395 			break;
1396 
1397 		if ((pos = strstr(buf, gitweb)) != NULL)
1398 			break;
1399 	}
1400 
1401 	if (pos == NULL)
1402 		goto err;
1403 
1404 	do {
1405 		fgets(buf, 128, f);
1406 	} while ((comp = strcasestr(buf, gw_owner)) == NULL);
1407 
1408 	if (comp == NULL)
1409 		goto err;
1410 
1411 	if (strncmp(gw_owner, comp, strlen(gw_owner)) != 0)
1412 		goto err;
1413 
1414 	for (i = 0; i < 2; i++) {
1415 		owner = strsep(&buf, "\"");
1416 	}
1417 
1418 	if (owner == NULL)
1419 		goto err;
1420 
1421 	fclose(f);
1422 	free(d_file);
1423 	return owner;
1424 err:
1425 	if ((asprintf(&owner, "%s", "")) == -1)
1426 		return NULL;
1427 
1428 	return owner;
1429 }
1430 
1431 static char *
1432 gw_get_clone_url(struct gw_trans *gw_trans, char *dir)
1433 {
1434 	FILE *f;
1435 	char *url = NULL, *d_file = NULL;
1436 	unsigned int len;
1437 
1438 	if ((asprintf(&d_file, "%s/cloneurl", dir)) == -1)
1439 		return NULL;
1440 
1441 	if ((f = fopen(d_file, "r")) == NULL)
1442 		return NULL;
1443 
1444 	fseek(f, 0, SEEK_END);
1445 	len = ftell(f) + 1;
1446 	fseek(f, 0, SEEK_SET);
1447 
1448 	if ((url = calloc(len, sizeof(char *))) == NULL)
1449 		return NULL;
1450 
1451 	fread(url, 1, len, f);
1452 	fclose(f);
1453 	free(d_file);
1454 	return url;
1455 }
1456 
1457 static char *
1458 gw_get_repo_log(struct gw_trans *gw_trans, const char *search_pattern,
1459     char *start_commit, int limit, int log_type)
1460 {
1461 	const struct got_error *error;
1462 	struct got_repository *repo = NULL;
1463 	struct got_reflist_head refs;
1464 	struct got_reflist_entry *re;
1465 	struct got_commit_object *commit = NULL;
1466 	struct got_object_id *id1 = NULL, *id2 = NULL;
1467 	struct got_object_qid *parent_id;
1468 	struct got_commit_graph *graph = NULL;
1469 	char *logs = NULL, *id_str1 = NULL, *id_str2 = NULL, *path = NULL,
1470 	     *in_repo_path = NULL, *refs_str = NULL, *refs_str_disp = NULL,
1471 	     *treeid = NULL, *commit_row = NULL, *commit_commit = NULL,
1472 	     *commit_commit_disp = NULL, *commit_age_diff = NULL,
1473 	     *commit_age_diff_disp = NULL, *commit_age_long = NULL,
1474 	     *commit_age_long_disp = NULL, *commit_author = NULL,
1475 	     *commit_author_disp = NULL, *commit_committer = NULL,
1476 	     *commit_committer_disp = NULL, *commit_log = NULL,
1477 	     *commit_log_disp = NULL, *commit_parent = NULL,
1478 	     *commit_diff_disp = NULL, *logbriefs_navs_html = NULL,
1479 	     *log_tree_html = NULL, *log_commit_html = NULL,
1480 	     *log_diff_html = NULL, *commit_tree = NULL,
1481 	     *commit_tree_disp = NULL, *log_tag_html = NULL,
1482 	     *log_blame_html = NULL;
1483 	char *commit_log0, *newline;
1484 	regex_t regex;
1485 	int have_match, log_count = 0, has_parent = 1;
1486 	size_t newsize;
1487 	struct buf *diffbuf = NULL;
1488 	time_t committer_time;
1489 
1490 	if (gw_trans->action == GW_LOG || gw_trans->action == GW_LOGBRIEFS)
1491 		log_count = gw_get_repo_log_count(gw_trans, start_commit);
1492 
1493 	error = buf_alloc(&diffbuf, 0);
1494 	if (error)
1495 		return NULL;
1496 
1497 	if (search_pattern &&
1498 	    regcomp(&regex, search_pattern, REG_EXTENDED | REG_NOSUB |
1499 	    REG_NEWLINE))
1500 		return NULL;
1501 
1502 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
1503 	if (error)
1504 		return NULL;
1505 
1506 	SIMPLEQ_INIT(&refs);
1507 
1508 	if (start_commit == NULL) {
1509 		struct got_reference *head_ref;
1510 		error = got_ref_open(&head_ref, repo, gw_trans->headref, 0);
1511 		if (error)
1512 			goto done;
1513 
1514 		error = got_ref_resolve(&id1, repo, head_ref);
1515 		got_ref_close(head_ref);
1516 		if (error)
1517 			goto done;
1518 
1519 		error = got_object_open_as_commit(&commit, repo, id1);
1520 	} else {
1521 		struct got_reference *ref;
1522 		error = got_ref_open(&ref, repo, start_commit, 0);
1523 		if (error == NULL) {
1524 			int obj_type;
1525 			error = got_ref_resolve(&id1, repo, ref);
1526 			got_ref_close(ref);
1527 			if (error)
1528 				goto done;
1529 			error = got_object_get_type(&obj_type, repo, id1);
1530 			if (error)
1531 				goto done;
1532 			if (obj_type == GOT_OBJ_TYPE_TAG) {
1533 				struct got_tag_object *tag;
1534 				error = got_object_open_as_tag(&tag, repo, id1);
1535 				if (error)
1536 					goto done;
1537 				if (got_object_tag_get_object_type(tag) !=
1538 				    GOT_OBJ_TYPE_COMMIT) {
1539 					got_object_tag_close(tag);
1540 					error = got_error(GOT_ERR_OBJ_TYPE);
1541 					goto done;
1542 				}
1543 				free(id1);
1544 				id1 = got_object_id_dup(
1545 				    got_object_tag_get_object_id(tag));
1546 				if (id1 == NULL)
1547 					error = got_error_from_errno(
1548 					    "got_object_id_dup");
1549 				got_object_tag_close(tag);
1550 				if (error)
1551 					goto done;
1552 			} else if (obj_type != GOT_OBJ_TYPE_COMMIT) {
1553 				error = got_error(GOT_ERR_OBJ_TYPE);
1554 				goto done;
1555 			}
1556 			error = got_object_open_as_commit(&commit, repo, id1);
1557 			if (error)
1558 				goto done;
1559 		}
1560 		if (commit == NULL) {
1561 			error = got_repo_match_object_id_prefix(&id1,
1562 			    start_commit, GOT_OBJ_TYPE_COMMIT, repo);
1563 			if (error)
1564 				goto done;
1565 		}
1566 		error = got_repo_match_object_id_prefix(&id1,
1567 			    start_commit, GOT_OBJ_TYPE_COMMIT, repo);
1568 	}
1569 
1570 	if (error)
1571 		goto done;
1572 
1573 	error = got_repo_map_path(&in_repo_path, repo, gw_trans->repo_path, 1);
1574 	if (error)
1575 		goto done;
1576 
1577 	if (in_repo_path) {
1578 		free(path);
1579 		path = in_repo_path;
1580 	}
1581 
1582 	error = got_ref_list(&refs, repo, NULL, got_ref_cmp_by_name, NULL);
1583 	if (error)
1584 		goto done;
1585 
1586 	error = got_commit_graph_open(&graph, path, 0);
1587 	if (error)
1588 		goto done;
1589 
1590 	error = got_commit_graph_iter_start(graph, id1, repo, NULL, NULL);
1591 	if (error)
1592 		goto done;
1593 
1594 	for (;;) {
1595 		error = got_commit_graph_iter_next(&id1, graph, repo, NULL,
1596 		    NULL);
1597 		if (error) {
1598 			if (error->code == GOT_ERR_ITER_COMPLETED)
1599 				error = NULL;
1600 			break;
1601 		}
1602 		if (id1 == NULL)
1603 			break;
1604 
1605 		error = got_object_open_as_commit(&commit, repo, id1);
1606 		if (error)
1607 			break;
1608 
1609 		if (search_pattern) {
1610 			error = gw_match_logmsg(&have_match, id1, commit,
1611 			    &regex);
1612 			if (error) {
1613 				got_object_commit_close(commit);
1614 				break;
1615 			}
1616 			if (have_match == 0) {
1617 				got_object_commit_close(commit);
1618 				continue;
1619 			}
1620 		}
1621 
1622 		SIMPLEQ_FOREACH(re, &refs, entry) {
1623 			char *s;
1624 			const char *name;
1625 			struct got_tag_object *tag = NULL;
1626 			int cmp;
1627 
1628 			name = got_ref_get_name(re->ref);
1629 			if (strcmp(name, GOT_REF_HEAD) == 0)
1630 				continue;
1631 			if (strncmp(name, "refs/", 5) == 0)
1632 				name += 5;
1633 			if (strncmp(name, "got/", 4) == 0)
1634 				continue;
1635 			if (strncmp(name, "heads/", 6) == 0)
1636 				name += 6;
1637 			if (strncmp(name, "remotes/", 8) == 0)
1638 				name += 8;
1639 			if (strncmp(name, "tags/", 5) == 0) {
1640 				error = got_object_open_as_tag(&tag, repo,
1641 				    re->id);
1642 				if (error) {
1643 					if (error->code != GOT_ERR_OBJ_TYPE)
1644 						continue;
1645 					/*
1646 					 * Ref points at something other
1647 					 * than a tag.
1648 					 */
1649 					error = NULL;
1650 					tag = NULL;
1651 				}
1652 			}
1653 			cmp = got_object_id_cmp(tag ?
1654 			    got_object_tag_get_object_id(tag) : re->id, id1);
1655 			if (tag)
1656 				got_object_tag_close(tag);
1657 			if (cmp != 0)
1658 				continue;
1659 			s = refs_str;
1660 			if ((asprintf(&refs_str, "%s%s%s", s ? s : "",
1661 			    s ? ", " : "", name)) == -1) {
1662 				error = got_error_from_errno("asprintf");
1663 				free(s);
1664 				goto done;
1665 			}
1666 			free(s);
1667 		}
1668 
1669 		if (refs_str == NULL)
1670 			refs_str_disp = strdup("");
1671 		else {
1672 			if ((asprintf(&refs_str_disp, "(%s)",
1673 			    refs_str)) == -1) {
1674 				error = got_error_from_errno("asprintf");
1675 				free(refs_str);
1676 				goto done;
1677 			}
1678 		}
1679 
1680 		error = got_object_id_str(&id_str1, id1);
1681 		if (error)
1682 			goto done;
1683 
1684 		error = got_object_id_str(&treeid,
1685 		    got_object_commit_get_tree_id(commit));
1686 		if (error)
1687 			goto done;
1688 
1689 		if (gw_trans->action == GW_COMMIT ||
1690 		    gw_trans->action == GW_COMMITDIFF) {
1691 			parent_id =
1692 			    SIMPLEQ_FIRST(
1693 			    got_object_commit_get_parent_ids(commit));
1694 			if (parent_id != NULL) {
1695 				id2 = got_object_id_dup(parent_id->id);
1696 				free (parent_id);
1697 				error = got_object_id_str(&id_str2, id2);
1698 				if (error)
1699 					goto done;
1700 				free(id2);
1701 			} else {
1702 				has_parent = 0;
1703 				id_str2 = strdup("/dev/null");
1704 			}
1705 		}
1706 
1707 		committer_time =
1708 		    got_object_commit_get_committer_time(commit);
1709 
1710 		if ((asprintf(&commit_parent, "%s", id_str2)) == -1) {
1711 			error = got_error_from_errno("asprintf");
1712 			goto done;
1713 		}
1714 
1715 		if ((asprintf(&commit_tree, "%s", treeid)) == -1) {
1716 			error = got_error_from_errno("asprintf");
1717 			goto done;
1718 		}
1719 
1720 		if ((asprintf(&commit_tree_disp, commit_tree_html,
1721 		    treeid)) == -1) {
1722 			error = got_error_from_errno("asprintf");
1723 			goto done;
1724 		}
1725 
1726 		if ((asprintf(&commit_diff_disp, commit_diff_html, id_str2,
1727 			id_str1)) == -1) {
1728 			error = got_error_from_errno("asprintf");
1729 			goto done;
1730 		}
1731 
1732 		if ((asprintf(&commit_commit, "%s", id_str1)) == -1) {
1733 			error = got_error_from_errno("asprintf");
1734 			goto done;
1735 		}
1736 
1737 		if ((asprintf(&commit_commit_disp, commit_commit_html,
1738 		    commit_commit, refs_str_disp)) == -1) {
1739 			error = got_error_from_errno("asprintf");
1740 			goto done;
1741 		}
1742 
1743 		if ((asprintf(&commit_age_long, "%s",
1744 		    gw_get_time_str(committer_time, TM_LONG))) == -1) {
1745 			error = got_error_from_errno("asprintf");
1746 			goto done;
1747 		}
1748 
1749 		if ((asprintf(&commit_age_long_disp, commit_age_html,
1750 		    commit_age_long)) == -1) {
1751 			error = got_error_from_errno("asprintf");
1752 			goto done;
1753 		}
1754 
1755 		if ((asprintf(&commit_age_diff, "%s",
1756 		    gw_get_time_str(committer_time, TM_DIFF))) == -1) {
1757 			error = got_error_from_errno("asprintf");
1758 			goto done;
1759 		}
1760 
1761 		if ((asprintf(&commit_age_diff_disp, commit_age_html,
1762 		    commit_age_diff)) == -1) {
1763 			error = got_error_from_errno("asprintf");
1764 			goto done;
1765 		}
1766 
1767 		if ((asprintf(&commit_author, "%s",
1768 		    got_object_commit_get_author(commit))) == -1) {
1769 			error = got_error_from_errno("asprintf");
1770 			goto done;
1771 		}
1772 
1773 		if ((asprintf(&commit_author_disp, commit_author_html,
1774 		    gw_html_escape(commit_author))) == -1) {
1775 			error = got_error_from_errno("asprintf");
1776 			goto done;
1777 		}
1778 
1779 		if ((asprintf(&commit_committer, "%s",
1780 		    got_object_commit_get_committer(commit))) == -1) {
1781 			error = got_error_from_errno("asprintf");
1782 			goto done;
1783 		}
1784 
1785 		if ((asprintf(&commit_committer_disp, commit_committer_html,
1786 		    gw_html_escape(commit_committer))) == -1) {
1787 			error = got_error_from_errno("asprintf");
1788 			goto done;
1789 		}
1790 
1791 		if (strcmp(commit_author, commit_committer) == 0) {
1792 			free(commit_committer_disp);
1793 			commit_committer_disp = strdup("");
1794 		}
1795 
1796 		error = got_object_commit_get_logmsg(&commit_log0, commit);
1797 		if (error)
1798 			goto done;
1799 
1800 		commit_log = commit_log0;
1801 		while (*commit_log == '\n')
1802 			commit_log++;
1803 
1804 		switch(log_type) {
1805 		case (LOGBRIEF):
1806 			newline = strchr(commit_log, '\n');
1807 			if (newline)
1808 				*newline = '\0';
1809 
1810 			if ((asprintf(&logbriefs_navs_html, logbriefs_navs,
1811 			    gw_trans->repo_name, id_str1, gw_trans->repo_name,
1812 			    id_str1, gw_trans->repo_name, id_str1,
1813 			    gw_trans->repo_name, id_str1)) == -1) {
1814 				error = got_error_from_errno("asprintf");
1815 				goto done;
1816 			}
1817 
1818 			if ((asprintf(&commit_row, logbriefs_row,
1819 			    commit_age_diff, commit_author, commit_log,
1820 			    logbriefs_navs_html)) == -1) {
1821 				error = got_error_from_errno("asprintf");
1822 				goto done;
1823 			}
1824 
1825 			free(logbriefs_navs_html);
1826 			logbriefs_navs_html = NULL;
1827 			break;
1828 		case (LOGFULL):
1829 			if ((asprintf(&logbriefs_navs_html, logbriefs_navs,
1830 			    gw_trans->repo_name, id_str1, gw_trans->repo_name,
1831 			    id_str1, gw_trans->repo_name, id_str1,
1832 			    gw_trans->repo_name, id_str1)) == -1) {
1833 				error = got_error_from_errno("asprintf");
1834 				goto done;
1835 			}
1836 
1837 			if ((asprintf(&commit_row, logs_row, commit_commit_disp,
1838 			    commit_author_disp, commit_committer_disp,
1839 			    commit_age_long_disp, gw_html_escape(commit_log),
1840 			    logbriefs_navs_html)) == -1) {
1841 				error = got_error_from_errno("asprintf");
1842 				goto done;
1843 			}
1844 
1845 			free(logbriefs_navs_html);
1846 			logbriefs_navs_html = NULL;
1847 			break;
1848 		case (LOGTAG):
1849 			log_tag_html = strdup("tag log here");
1850 
1851 			if ((asprintf(&commit_row, log_tag_row,
1852 			    gw_html_escape(commit_log), log_tag_html)) == -1) {
1853 				error = got_error_from_errno("asprintf");
1854 				goto done;
1855 			}
1856 
1857 			free(log_tag_html);
1858 			break;
1859 		case (LOGBLAME):
1860 			log_blame_html = gw_get_file_blame(gw_trans,
1861 			    start_commit);
1862 
1863 			if ((asprintf(&commit_row, log_blame_row,
1864 			    gw_html_escape(commit_log), log_blame_html)) == -1) {
1865 				error = got_error_from_errno("asprintf");
1866 				goto done;
1867 			}
1868 
1869 			free(log_blame_html);
1870 			break;
1871 		case (LOGTREE):
1872 			log_tree_html = gw_get_repo_tree(gw_trans,
1873 			    start_commit);
1874 
1875 			if ((asprintf(&commit_row, log_tree_row,
1876 			    gw_html_escape(commit_log), log_tree_html)) == -1) {
1877 				error = got_error_from_errno("asprintf");
1878 				goto done;
1879 			}
1880 
1881 			free(log_tree_html);
1882 			break;
1883 		case (LOGCOMMIT):
1884 			if ((asprintf(&commit_log_disp, commit_log_html,
1885 			    gw_html_escape(commit_log))) == -1) {
1886 				error = got_error_from_errno("asprintf");
1887 				goto done;
1888 			}
1889 
1890 			log_commit_html = strdup("commit here");
1891 
1892 			if ((asprintf(&commit_row, log_commit_row,
1893 			    commit_diff_disp, commit_commit_disp,
1894 			    commit_tree_disp, commit_author_disp,
1895 			    commit_committer_disp, commit_age_long_disp,
1896 			    commit_log_disp, log_commit_html)) == -1) {
1897 				error = got_error_from_errno("asprintf");
1898 				goto done;
1899 			}
1900 			free(commit_log_disp);
1901 			free(log_commit_html);
1902 
1903 			break;
1904 		case (LOGDIFF):
1905 			if ((asprintf(&commit_log_disp, commit_log_html,
1906 			    gw_html_escape(commit_log))) == -1) {
1907 				error = got_error_from_errno("asprintf");
1908 				goto done;
1909 			}
1910 
1911 			if (has_parent)
1912 				log_diff_html = gw_get_repo_diff(gw_trans,
1913 				    commit_commit, commit_parent);
1914 			else
1915 				log_diff_html = gw_get_repo_diff(gw_trans,
1916 				    commit_commit, NULL);
1917 
1918 			if ((asprintf(&commit_row, log_diff_row,
1919 			    commit_diff_disp, commit_commit_disp,
1920 			    commit_tree_disp, commit_author_disp,
1921 			    commit_committer_disp, commit_age_long_disp,
1922 			    commit_log_disp, log_diff_html)) == -1) {
1923 				error = got_error_from_errno("asprintf");
1924 				goto done;
1925 			}
1926 			free(commit_log_disp);
1927 			free(log_diff_html);
1928 
1929 			break;
1930 		default:
1931 			return NULL;
1932 		}
1933 
1934 		error = buf_puts(&newsize, diffbuf, commit_row);
1935 
1936 		free(commit_parent);
1937 		free(commit_diff_disp);
1938 		free(commit_tree_disp);
1939 		free(commit_age_diff);
1940 		free(commit_age_diff_disp);
1941 		free(commit_age_long);
1942 		free(commit_age_long_disp);
1943 		free(commit_author);
1944 		free(commit_author_disp);
1945 		free(commit_committer);
1946 		free(commit_committer_disp);
1947 		free(commit_log0);
1948 		free(commit_row);
1949 		free(refs_str_disp);
1950 		free(refs_str);
1951 		refs_str = NULL;
1952 		free(id_str1);
1953 		id_str1 = NULL;
1954 		free(id_str2);
1955 		id_str2 = NULL;
1956 
1957 		if (error || (limit && --limit == 0))
1958 			break;
1959 	}
1960 
1961 	if (error)
1962 		goto done;
1963 
1964 	if (buf_len(diffbuf) > 0) {
1965 		error = buf_putc(diffbuf, '\0');
1966 		logs = strdup(buf_get(diffbuf));
1967 	}
1968 done:
1969 	buf_free(diffbuf);
1970 	free(in_repo_path);
1971 	if (commit != NULL)
1972 		got_object_commit_close(commit);
1973 	if (search_pattern)
1974 		regfree(&regex);
1975 	if (graph)
1976 		got_commit_graph_close(graph);
1977 	if (repo) {
1978 		error = got_repo_close(repo);
1979 		if (error)
1980 			return NULL;
1981 	}
1982 	if (error) {
1983 		khttp_puts(gw_trans->gw_req, "Error: ");
1984 		khttp_puts(gw_trans->gw_req, error->msg);
1985 		return NULL;
1986 	} else
1987 		return logs;
1988 }
1989 
1990 static char *
1991 gw_get_repo_tags(struct gw_trans *gw_trans, int limit, int tag_type)
1992 {
1993 	const struct got_error *error = NULL;
1994 	struct got_repository *repo = NULL;
1995 	struct got_reflist_head refs;
1996 	struct got_reflist_entry *re;
1997 	char *tags = NULL, *tag_row = NULL, *tags_navs_disp = NULL,
1998 	     *age = NULL;
1999 	char *newline;
2000 	struct buf *diffbuf = NULL;
2001 	size_t newsize;
2002 
2003 	error = buf_alloc(&diffbuf, 0);
2004 	if (error)
2005 		return NULL;
2006 	SIMPLEQ_INIT(&refs);
2007 
2008 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2009 	if (error)
2010 		goto done;
2011 
2012 	error = got_ref_list(&refs, repo, "refs/tags", got_repo_cmp_tags, repo);
2013 	if (error)
2014 		goto done;
2015 
2016 	SIMPLEQ_FOREACH(re, &refs, entry) {
2017 		const char *refname;
2018 		char *refstr, *tag_log0, *tag_log, *id_str;
2019 		time_t tagger_time;
2020 		struct got_object_id *id;
2021 		struct got_tag_object *tag;
2022 
2023 		refname = got_ref_get_name(re->ref);
2024 		if (strncmp(refname, "refs/tags/", 10) != 0)
2025 			continue;
2026 		refname += 10;
2027 		refstr = got_ref_to_str(re->ref);
2028 		if (refstr == NULL) {
2029 			error = got_error_from_errno("got_ref_to_str");
2030 			goto done;
2031 		}
2032 
2033 		error = got_ref_resolve(&id, repo, re->ref);
2034 		if (error)
2035 			goto done;
2036 		error = got_object_open_as_tag(&tag, repo, id);
2037 		free(id);
2038 		if (error)
2039 			goto done;
2040 
2041 		tagger_time = got_object_tag_get_tagger_time(tag);
2042 
2043 		error = got_object_id_str(&id_str,
2044 		    got_object_tag_get_object_id(tag));
2045 		if (error)
2046 			goto done;
2047 
2048 		tag_log0 = strdup(got_object_tag_get_message(tag));
2049 
2050 		if (tag_log0 == NULL) {
2051 			error = got_error_from_errno("strdup");
2052 			goto done;
2053 		}
2054 
2055 		tag_log = tag_log0;
2056 		while (*tag_log == '\n')
2057 			tag_log++;
2058 
2059 		switch (tag_type) {
2060 		case TAGBRIEF:
2061 			newline = strchr(tag_log, '\n');
2062 			if (newline)
2063 				*newline = '\0';
2064 
2065 			if ((asprintf(&age, "%s", gw_get_time_str(tagger_time,
2066 			    TM_DIFF))) == -1) {
2067 				error = got_error_from_errno("asprintf");
2068 				goto done;
2069 			}
2070 
2071 			if ((asprintf(&tags_navs_disp, tags_navs,
2072 			    gw_trans->repo_name, id_str, gw_trans->repo_name,
2073 			    id_str, gw_trans->repo_name, id_str,
2074 			    gw_trans->repo_name, id_str)) == -1) {
2075 				error = got_error_from_errno("asprintf");
2076 				goto done;
2077 			}
2078 
2079 			if ((asprintf(&tag_row, tags_row, age, refname, tag_log,
2080 			    tags_navs_disp)) == -1) {
2081 				error = got_error_from_errno("asprintf");
2082 				goto done;
2083 			}
2084 
2085 			free(tags_navs_disp);
2086 			break;
2087 		case TAGFULL:
2088 			break;
2089 		default:
2090 			break;
2091 		}
2092 
2093 		got_object_tag_close(tag);
2094 
2095 		error = buf_puts(&newsize, diffbuf, tag_row);
2096 
2097 		free(id_str);
2098 		free(refstr);
2099 		free(age);
2100 		free(tag_log0);
2101 		free(tag_row);
2102 
2103 		if (error || (limit && --limit == 0))
2104 			break;
2105 	}
2106 
2107 	if (buf_len(diffbuf) > 0) {
2108 		error = buf_putc(diffbuf, '\0');
2109 		tags = strdup(buf_get(diffbuf));
2110 	}
2111 done:
2112 	buf_free(diffbuf);
2113 	got_ref_list_free(&refs);
2114 	if (repo)
2115 		got_repo_close(repo);
2116 	if (error)
2117 		return NULL;
2118 	else
2119 		return tags;
2120 }
2121 
2122 struct blame_line {
2123 	int annotated;
2124 	char *id_str;
2125 	char *committer;
2126 	char datebuf[11]; /* YYYY-MM-DD + NUL */
2127 };
2128 
2129 struct gw_blame_cb_args {
2130 	struct blame_line *lines;
2131 	int nlines;
2132 	int nlines_prec;
2133 	int lineno_cur;
2134 	off_t *line_offsets;
2135 	FILE *f;
2136 	struct got_repository *repo;
2137 	struct gw_trans *gw_trans;
2138 	struct buf *blamebuf;
2139 };
2140 
2141 static const struct got_error *
2142 gw_blame_cb(void *arg, int nlines, int lineno, struct got_object_id *id)
2143 {
2144 	const struct got_error *err = NULL;
2145 	struct gw_blame_cb_args *a = arg;
2146 	struct blame_line *bline;
2147 	char *line = NULL;
2148 	size_t linesize = 0, newsize;
2149 	struct got_commit_object *commit = NULL;
2150 	off_t offset;
2151 	struct tm tm;
2152 	time_t committer_time;
2153 
2154 	if (nlines != a->nlines ||
2155 	    (lineno != -1 && lineno < 1) || lineno > a->nlines)
2156 		return got_error(GOT_ERR_RANGE);
2157 
2158 	if (lineno == -1)
2159 		return NULL; /* no change in this commit */
2160 
2161 	/* Annotate this line. */
2162 	bline = &a->lines[lineno - 1];
2163 	if (bline->annotated)
2164 		return NULL;
2165 	err = got_object_id_str(&bline->id_str, id);
2166 	if (err)
2167 		return err;
2168 
2169 	err = got_object_open_as_commit(&commit, a->repo, id);
2170 	if (err)
2171 		goto done;
2172 
2173 	bline->committer = strdup(got_object_commit_get_committer(commit));
2174 	if (bline->committer == NULL) {
2175 		err = got_error_from_errno("strdup");
2176 		goto done;
2177 	}
2178 
2179 	committer_time = got_object_commit_get_committer_time(commit);
2180 	if (localtime_r(&committer_time, &tm) == NULL)
2181 		return got_error_from_errno("localtime_r");
2182 	if (strftime(bline->datebuf, sizeof(bline->datebuf), "%G-%m-%d",
2183 	    &tm) >= sizeof(bline->datebuf)) {
2184 		err = got_error(GOT_ERR_NO_SPACE);
2185 		goto done;
2186 	}
2187 	bline->annotated = 1;
2188 
2189 	/* Print lines annotated so far. */
2190 	bline = &a->lines[a->lineno_cur - 1];
2191 	if (!bline->annotated)
2192 		goto done;
2193 
2194 	offset = a->line_offsets[a->lineno_cur - 1];
2195 	if (fseeko(a->f, offset, SEEK_SET) == -1) {
2196 		err = got_error_from_errno("fseeko");
2197 		goto done;
2198 	}
2199 
2200 	while (bline->annotated) {
2201 		char *smallerthan, *at, *nl, *committer, *blame_row = NULL,
2202 		     *line_escape = NULL;
2203 		size_t len;
2204 
2205 		if (getline(&line, &linesize, a->f) == -1) {
2206 			if (ferror(a->f))
2207 				err = got_error_from_errno("getline");
2208 			break;
2209 		}
2210 
2211 		committer = bline->committer;
2212 		smallerthan = strchr(committer, '<');
2213 		if (smallerthan && smallerthan[1] != '\0')
2214 			committer = smallerthan + 1;
2215 		at = strchr(committer, '@');
2216 		if (at)
2217 			*at = '\0';
2218 		len = strlen(committer);
2219 		if (len >= 9)
2220 			committer[8] = '\0';
2221 
2222 		nl = strchr(line, '\n');
2223 		if (nl)
2224 			*nl = '\0';
2225 
2226 		if (strcmp(line, "") != 0)
2227 			line_escape = strdup(gw_html_escape(line));
2228 		else
2229 			line_escape = strdup("");
2230 
2231 		asprintf(&blame_row, log_blame_line, a->nlines_prec,
2232 		    a->lineno_cur, bline->id_str, bline->datebuf, committer,
2233 		    line_escape);
2234 		a->lineno_cur++;
2235 		err = buf_puts(&newsize, a->blamebuf, blame_row);
2236 		if (err)
2237 			return err;
2238 
2239 		bline = &a->lines[a->lineno_cur - 1];
2240 		free(line_escape);
2241 		free(blame_row);
2242 	}
2243 done:
2244 	if (commit)
2245 		got_object_commit_close(commit);
2246 	free(line);
2247 	return err;
2248 }
2249 
2250 static char*
2251 gw_get_file_blame(struct gw_trans *gw_trans, char *commit_str)
2252 {
2253 	const struct got_error *error = NULL;
2254 	struct got_repository *repo = NULL;
2255 	struct got_object_id *obj_id = NULL;
2256 	struct got_object_id *commit_id = NULL;
2257 	struct got_blob_object *blob = NULL;
2258 	char *blame_html = NULL, *path = NULL, *in_repo_path = NULL,
2259 	     *folder = NULL;
2260 	struct gw_blame_cb_args bca;
2261 	int i, obj_type;
2262 	size_t filesize;
2263 
2264 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2265 	if (error)
2266 		goto done;
2267 
2268 	if (gw_trans->repo_folder != NULL) {
2269 		if ((asprintf(&folder, "%s/", gw_trans->repo_folder)) == -1) {
2270 			error = got_error_from_errno("asprintf");
2271 			goto done;
2272 		}
2273 	} else
2274 		folder = strdup("");
2275 
2276 	if ((asprintf(&path, "%s%s", folder, gw_trans->repo_file)) == -1) {
2277 		error = got_error_from_errno("asprintf");
2278 		goto done;
2279 	}
2280 	free(folder);
2281 
2282 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
2283 	if (error)
2284 		goto done;
2285 
2286 	error = got_repo_match_object_id(&commit_id, NULL, commit_str,
2287 	    GOT_OBJ_TYPE_COMMIT, 1, repo);
2288 	if (error)
2289 		goto done;
2290 
2291 	error = got_object_id_by_path(&obj_id, repo, commit_id, in_repo_path);
2292 	if (error)
2293 		goto done;
2294 
2295 	if (obj_id == NULL) {
2296 		error = got_error(GOT_ERR_NO_OBJ);
2297 		goto done;
2298 	}
2299 
2300 	error = got_object_get_type(&obj_type, repo, obj_id);
2301 	if (error)
2302 		goto done;
2303 
2304 	if (obj_type != GOT_OBJ_TYPE_BLOB) {
2305 		error = got_error(GOT_ERR_OBJ_TYPE);
2306 		goto done;
2307 	}
2308 
2309 	error = got_object_open_as_blob(&blob, repo, obj_id, 8192);
2310 	if (error)
2311 		goto done;
2312 
2313 	error = buf_alloc(&bca.blamebuf, 0);
2314 	if (error)
2315 		goto done;
2316 
2317 	bca.f = got_opentemp();
2318 	if (bca.f == NULL) {
2319 		error = got_error_from_errno("got_opentemp");
2320 		goto done;
2321 	}
2322 	error = got_object_blob_dump_to_file(&filesize, &bca.nlines,
2323 	    &bca.line_offsets, bca.f, blob);
2324 	if (error || bca.nlines == 0)
2325 		goto done;
2326 
2327 	/* Don't include \n at EOF in the blame line count. */
2328 	if (bca.line_offsets[bca.nlines - 1] == filesize)
2329 		bca.nlines--;
2330 
2331 	bca.lines = calloc(bca.nlines, sizeof(*bca.lines));
2332 	if (bca.lines == NULL) {
2333 		error = got_error_from_errno("calloc");
2334 		goto done;
2335 	}
2336 	bca.lineno_cur = 1;
2337 	bca.nlines_prec = 0;
2338 	i = bca.nlines;
2339 	while (i > 0) {
2340 		i /= 10;
2341 		bca.nlines_prec++;
2342 	}
2343 	bca.repo = repo;
2344 	bca.gw_trans = gw_trans;
2345 
2346 	error = got_blame(in_repo_path, commit_id, repo, gw_blame_cb, &bca,
2347 	    NULL, NULL);
2348 	if (buf_len(bca.blamebuf) > 0) {
2349 		error = buf_putc(bca.blamebuf, '\0');
2350 		blame_html = strdup(buf_get(bca.blamebuf));
2351 	}
2352 done:
2353 	free(bca.blamebuf);
2354 	free(in_repo_path);
2355 	free(commit_id);
2356 	free(obj_id);
2357 	free(path);
2358 
2359 	if (blob)
2360 		error = got_object_blob_close(blob);
2361 	if (repo)
2362 		error = got_repo_close(repo);
2363 	if (error)
2364 		return NULL;
2365 	if (bca.lines) {
2366 		for (i = 0; i < bca.nlines; i++) {
2367 			struct blame_line *bline = &bca.lines[i];
2368 			free(bline->id_str);
2369 			free(bline->committer);
2370 		}
2371 		free(bca.lines);
2372 	}
2373 	free(bca.line_offsets);
2374 	if (bca.f && fclose(bca.f) == EOF && error == NULL)
2375 		error = got_error_from_errno("fclose");
2376 	if (error)
2377 		return NULL;
2378 	else
2379 		return blame_html;
2380 }
2381 
2382 static char*
2383 gw_get_repo_tree(struct gw_trans *gw_trans, char *commit_str)
2384 {
2385 	const struct got_error *error = NULL;
2386 	struct got_repository *repo = NULL;
2387 	struct got_object_id *tree_id = NULL, *commit_id = NULL;
2388 	struct got_tree_object *tree = NULL;
2389 	struct buf *diffbuf = NULL;
2390 	size_t newsize;
2391 	char *tree_html = NULL, *path = NULL, *in_repo_path = NULL,
2392 	    *tree_row = NULL, *id_str;
2393 	int nentries, i;
2394 
2395 	error = buf_alloc(&diffbuf, 0);
2396 	if (error)
2397 		return NULL;
2398 
2399 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2400 	if (error)
2401 		goto done;
2402 
2403 	error = got_repo_map_path(&in_repo_path, repo, gw_trans->repo_path, 1);
2404 	if (error)
2405 		goto done;
2406 
2407 	if (gw_trans->repo_folder != NULL)
2408 		path = strdup(gw_trans->repo_folder);
2409 	else if (in_repo_path) {
2410 		free(path);
2411 		path = in_repo_path;
2412 	}
2413 
2414 	if (commit_str == NULL) {
2415 		struct got_reference *head_ref;
2416 		error = got_ref_open(&head_ref, repo, gw_trans->headref, 0);
2417 		if (error)
2418 			goto done;
2419 
2420 		error = got_ref_resolve(&commit_id, repo, head_ref);
2421 		got_ref_close(head_ref);
2422 
2423 	} else
2424 		error = got_repo_match_object_id(&commit_id, NULL, commit_str,
2425 		    GOT_OBJ_TYPE_COMMIT, 1, repo);
2426 	if (error)
2427 		goto done;
2428 
2429 	error = got_object_id_by_path(&tree_id, repo, commit_id, path);
2430 	if (error)
2431 		goto done;
2432 
2433 	error = got_object_open_as_tree(&tree, repo, tree_id);
2434 	if (error)
2435 		goto done;
2436 
2437 	nentries = got_object_tree_get_nentries(tree);
2438 
2439 	for (i = 0; i < nentries; i++) {
2440 		struct got_tree_entry *te;
2441 		const char *modestr = "";
2442 		char *id = NULL, *url_html = NULL;
2443 
2444 		te = got_object_tree_get_entry(tree, i);
2445 
2446 		error = got_object_id_str(&id_str, got_tree_entry_get_id(te));
2447 		if (error)
2448 			goto done;
2449 
2450 		if ((asprintf(&id, "%s", id_str)) == -1) {
2451 			error = got_error_from_errno("asprintf");
2452 			free(id_str);
2453 			goto done;
2454 		}
2455 
2456 		mode_t mode = got_tree_entry_get_mode(te);
2457 
2458 		if (got_object_tree_entry_is_submodule(te))
2459 			modestr = "$";
2460 		else if (S_ISLNK(mode))
2461 			modestr = "@";
2462 		else if (S_ISDIR(mode))
2463 			modestr = "/";
2464 		else if (mode & S_IXUSR)
2465 			modestr = "*";
2466 
2467 		char *build_folder = NULL;
2468 		if (S_ISDIR(got_tree_entry_get_mode(te))) {
2469 			if (gw_trans->repo_folder != NULL) {
2470 				if ((asprintf(&build_folder, "%s/%s",
2471 				    gw_trans->repo_folder,
2472 				    got_tree_entry_get_name(te))) == -1) {
2473 					error =
2474 					    got_error_from_errno("asprintf");
2475 					goto done;
2476 				}
2477 			} else {
2478 				if (asprintf(&build_folder, "%s",
2479 				    got_tree_entry_get_name(te)) == -1)
2480 					goto done;
2481 			}
2482 
2483 			if ((asprintf(&url_html, folder_html,
2484 			    gw_trans->repo_name, gw_trans->action_name,
2485 			    gw_trans->commit, build_folder,
2486 			    got_tree_entry_get_name(te), modestr)) == -1) {
2487 				error = got_error_from_errno("asprintf");
2488 				goto done;
2489 			}
2490 		} else {
2491 			if (gw_trans->repo_folder != NULL) {
2492 				if ((asprintf(&build_folder, "%s",
2493 				    gw_trans->repo_folder)) == -1) {
2494 					error =
2495 					    got_error_from_errno("asprintf");
2496 					goto done;
2497 				}
2498 			} else
2499 				build_folder = strdup("");
2500 
2501 			if ((asprintf(&url_html, file_html, gw_trans->repo_name,
2502 			    "blame", gw_trans->commit,
2503 			    got_tree_entry_get_name(te), build_folder,
2504 			    got_tree_entry_get_name(te), modestr)) == -1) {
2505 				error = got_error_from_errno("asprintf");
2506 				goto done;
2507 			}
2508 		}
2509 		free(build_folder);
2510 
2511 		if (error)
2512 			goto done;
2513 
2514 		if ((asprintf(&tree_row, trees_row, "", url_html)) == -1) {
2515 			error = got_error_from_errno("asprintf");
2516 			goto done;
2517 		}
2518 		error = buf_puts(&newsize, diffbuf, tree_row);
2519 		if (error)
2520 			goto done;
2521 
2522 		free(id);
2523 		free(id_str);
2524 		free(url_html);
2525 		free(tree_row);
2526 	}
2527 
2528 	if (buf_len(diffbuf) > 0) {
2529 		error = buf_putc(diffbuf, '\0');
2530 		tree_html = strdup(buf_get(diffbuf));
2531 	}
2532 done:
2533 	if (tree)
2534 		got_object_tree_close(tree);
2535 	if (repo)
2536 		got_repo_close(repo);
2537 
2538 	free(in_repo_path);
2539 	free(tree_id);
2540 	free(diffbuf);
2541 	if (error)
2542 		return NULL;
2543 	else
2544 		return tree_html;
2545 }
2546 
2547 static char *
2548 gw_get_repo_heads(struct gw_trans *gw_trans)
2549 {
2550 	const struct got_error *error = NULL;
2551 	struct got_repository *repo = NULL;
2552 	struct got_reflist_head refs;
2553 	struct got_reflist_entry *re;
2554 	char *heads, *head_row = NULL, *head_navs_disp = NULL, *age = NULL;
2555 	struct buf *diffbuf = NULL;
2556 	size_t newsize;
2557 
2558 	error = buf_alloc(&diffbuf, 0);
2559 	if (error)
2560 		return NULL;
2561 
2562 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
2563 	if (error)
2564 		goto done;
2565 
2566 	SIMPLEQ_INIT(&refs);
2567 	error = got_ref_list(&refs, repo, "refs/heads", got_ref_cmp_by_name,
2568 	    NULL);
2569 	if (error)
2570 		goto done;
2571 
2572 	SIMPLEQ_FOREACH(re, &refs, entry) {
2573 		char *refname;
2574 
2575 		refname = strdup(got_ref_get_name(re->ref));
2576 		if (refname == NULL) {
2577 			error = got_error_from_errno("got_ref_to_str");
2578 			goto done;
2579 		}
2580 
2581 		if (strncmp(refname, "refs/heads/", 11) != 0) {
2582 			free(refname);
2583 			continue;
2584 		}
2585 
2586 		age = gw_get_repo_age(gw_trans, gw_trans->gw_dir->path, refname,
2587 		    TM_DIFF);
2588 
2589 		if ((asprintf(&head_navs_disp, heads_navs, gw_trans->repo_name,
2590 		    refname, gw_trans->repo_name, refname,
2591 		    gw_trans->repo_name, refname, gw_trans->repo_name,
2592 		    refname)) == -1) {
2593 			error = got_error_from_errno("asprintf");
2594 			goto done;
2595 		}
2596 
2597 		if (strncmp(refname, "refs/heads/", 11) == 0)
2598 			refname += 11;
2599 
2600 		if ((asprintf(&head_row, heads_row, age, refname,
2601 		    head_navs_disp)) == -1) {
2602 			error = got_error_from_errno("asprintf");
2603 			goto done;
2604 		}
2605 
2606 		error = buf_puts(&newsize, diffbuf, head_row);
2607 
2608 		free(head_navs_disp);
2609 		free(head_row);
2610 	}
2611 
2612 	if (buf_len(diffbuf) > 0) {
2613 		error = buf_putc(diffbuf, '\0');
2614 		heads = strdup(buf_get(diffbuf));
2615 	}
2616 done:
2617 	buf_free(diffbuf);
2618 	got_ref_list_free(&refs);
2619 	if (repo)
2620 		got_repo_close(repo);
2621 	if (error)
2622 		return NULL;
2623 	else
2624 		return heads;
2625 }
2626 
2627 static char *
2628 gw_get_got_link(struct gw_trans *gw_trans)
2629 {
2630 	char *link;
2631 
2632 	if ((asprintf(&link, got_link, gw_trans->gw_conf->got_logo_url,
2633 	    gw_trans->gw_conf->got_logo)) == -1)
2634 		return NULL;
2635 
2636 	return link;
2637 }
2638 
2639 static char *
2640 gw_get_site_link(struct gw_trans *gw_trans)
2641 {
2642 	char *link, *repo = "", *action = "";
2643 
2644 	if (gw_trans->repo_name != NULL)
2645 		if ((asprintf(&repo, " / <a href='?path=%s&action=summary'>%s" \
2646 		    "</a>", gw_trans->repo_name, gw_trans->repo_name)) == -1)
2647 			return NULL;
2648 
2649 	if (gw_trans->action_name != NULL)
2650 		if ((asprintf(&action, " / %s", gw_trans->action_name)) == -1)
2651 			return NULL;
2652 
2653 	if ((asprintf(&link, site_link, GOTWEB,
2654 	    gw_trans->gw_conf->got_site_link, repo, action)) == -1)
2655 		return NULL;
2656 
2657 	return link;
2658 }
2659 
2660 static char *
2661 gw_colordiff_line(char *buf)
2662 {
2663 	const struct got_error *error = NULL;
2664 	char *colorized_line = NULL, *div_diff_line_div = NULL, *color = NULL;
2665 	struct buf *diffbuf = NULL;
2666 	size_t newsize;
2667 
2668 	error = buf_alloc(&diffbuf, 0);
2669 	if (error)
2670 		return NULL;
2671 
2672 	if (strncmp(buf, "-", 1) == 0)
2673 		color = "diff_minus";
2674 	if (strncmp(buf, "+", 1) == 0)
2675 		color = "diff_plus";
2676 	if (strncmp(buf, "@@", 2) == 0)
2677 		color = "diff_chunk_header";
2678 	if (strncmp(buf, "@@", 2) == 0)
2679 		color = "diff_chunk_header";
2680 	if (strncmp(buf, "commit +", 8) == 0)
2681 		color = "diff_meta";
2682 	if (strncmp(buf, "commit -", 8) == 0)
2683 		color = "diff_meta";
2684 	if (strncmp(buf, "blob +", 6) == 0)
2685 		color = "diff_meta";
2686 	if (strncmp(buf, "blob -", 6) == 0)
2687 		color = "diff_meta";
2688 	if (strncmp(buf, "file +", 6) == 0)
2689 		color = "diff_meta";
2690 	if (strncmp(buf, "file -", 6) == 0)
2691 		color = "diff_meta";
2692 	if (strncmp(buf, "from:", 5) == 0)
2693 		color = "diff_author";
2694 	if (strncmp(buf, "via:", 4) == 0)
2695 		color = "diff_author";
2696 	if (strncmp(buf, "date:", 5) == 0)
2697 		color = "diff_date";
2698 
2699 	if ((asprintf(&div_diff_line_div, div_diff_line, color)) == -1)
2700 		return NULL;
2701 
2702 	error = buf_puts(&newsize, diffbuf, div_diff_line_div);
2703 	if (error)
2704 		return NULL;
2705 
2706 	error = buf_puts(&newsize, diffbuf, buf);
2707 	if (error)
2708 		return NULL;
2709 
2710 	if (buf_len(diffbuf) > 0) {
2711 		error = buf_putc(diffbuf, '\0');
2712 		colorized_line = strdup(buf_get(diffbuf));
2713 	}
2714 
2715 	free(diffbuf);
2716 	free(div_diff_line_div);
2717 	return colorized_line;
2718 }
2719 
2720 static char *
2721 gw_html_escape(const char *html)
2722 {
2723 	char *escaped_str = NULL, *buf;
2724 	char c[1];
2725 	size_t sz, i, buff_sz = 2048;
2726 
2727 	if ((buf = calloc(buff_sz, sizeof(char *))) == NULL)
2728 		return NULL;
2729 
2730 	if (html == NULL)
2731 		return NULL;
2732 	else
2733 		if ((sz = strlen(html)) == 0)
2734 			return NULL;
2735 
2736 	/* only work with buff_sz */
2737 	if (buff_sz < sz)
2738 		sz = buff_sz;
2739 
2740 	for (i = 0; i < sz; i++) {
2741 		c[0] = html[i];
2742 		switch (c[0]) {
2743 		case ('>'):
2744 			strcat(buf, "&gt;");
2745 			break;
2746 		case ('&'):
2747 			strcat(buf, "&amp;");
2748 			break;
2749 		case ('<'):
2750 			strcat(buf, "&lt;");
2751 			break;
2752 		case ('"'):
2753 			strcat(buf, "&quot;");
2754 			break;
2755 		case ('\''):
2756 			strcat(buf, "&apos;");
2757 			break;
2758 		case ('\n'):
2759 			strcat(buf, "<br />");
2760 		default:
2761 			strcat(buf, &c[0]);
2762 			break;
2763 		}
2764 	}
2765 	asprintf(&escaped_str, "%s", buf);
2766 	free(buf);
2767 	return escaped_str;
2768 }
2769 
2770 int
2771 main()
2772 {
2773 	const struct got_error *error = NULL;
2774 	struct gw_trans *gw_trans;
2775 	struct gw_dir *dir = NULL, *tdir;
2776 	const char *page = "index";
2777 	int gw_malloc = 1;
2778 
2779 	if ((gw_trans = malloc(sizeof(struct gw_trans))) == NULL)
2780 		errx(1, "malloc");
2781 
2782 	if ((gw_trans->gw_req = malloc(sizeof(struct kreq))) == NULL)
2783 		errx(1, "malloc");
2784 
2785 	if ((gw_trans->gw_html_req = malloc(sizeof(struct khtmlreq))) == NULL)
2786 		errx(1, "malloc");
2787 
2788 	if ((gw_trans->gw_tmpl = malloc(sizeof(struct ktemplate))) == NULL)
2789 		errx(1, "malloc");
2790 
2791 	if (KCGI_OK != khttp_parse(gw_trans->gw_req, gw_keys, KEY__ZMAX,
2792 	    &page, 1, 0))
2793 		errx(1, "khttp_parse");
2794 
2795 	if ((gw_trans->gw_conf =
2796 	    malloc(sizeof(struct gotweb_conf))) == NULL) {
2797 		gw_malloc = 0;
2798 		error = got_error_from_errno("malloc");
2799 		goto err;
2800 	}
2801 
2802 	if (pledge("stdio rpath wpath cpath proc exec sendfd unveil",
2803 	    NULL) == -1) {
2804 		error = got_error_from_errno("pledge");
2805 		goto err;
2806 	}
2807 
2808 	TAILQ_INIT(&gw_trans->gw_dirs);
2809 
2810 	gw_trans->page = 0;
2811 	gw_trans->repos_total = 0;
2812 	gw_trans->repo_path = NULL;
2813 	gw_trans->commit = NULL;
2814 	gw_trans->headref = strdup(GOT_REF_HEAD);
2815 	gw_trans->mime = KMIME_TEXT_HTML;
2816 	gw_trans->gw_tmpl->key = gw_templs;
2817 	gw_trans->gw_tmpl->keysz = TEMPL__MAX;
2818 	gw_trans->gw_tmpl->arg = gw_trans;
2819 	gw_trans->gw_tmpl->cb = gw_template;
2820 	error = parse_conf(GOTWEB_CONF, gw_trans->gw_conf);
2821 
2822 err:
2823 	if (error) {
2824 		gw_trans->mime = KMIME_TEXT_PLAIN;
2825 		gw_trans->action = GW_ERR;
2826 		gw_display_index(gw_trans, error);
2827 		goto done;
2828 	}
2829 
2830 	error = gw_parse_querystring(gw_trans);
2831 	if (error)
2832 		goto err;
2833 
2834 	gw_display_index(gw_trans, error);
2835 
2836 done:
2837 	if (gw_malloc) {
2838 		free(gw_trans->gw_conf->got_repos_path);
2839 		free(gw_trans->gw_conf->got_www_path);
2840 		free(gw_trans->gw_conf->got_site_name);
2841 		free(gw_trans->gw_conf->got_site_owner);
2842 		free(gw_trans->gw_conf->got_site_link);
2843 		free(gw_trans->gw_conf->got_logo);
2844 		free(gw_trans->gw_conf->got_logo_url);
2845 		free(gw_trans->gw_conf);
2846 		free(gw_trans->commit);
2847 		free(gw_trans->repo_path);
2848 		free(gw_trans->repo_name);
2849 		free(gw_trans->repo_file);
2850 		free(gw_trans->action_name);
2851 		free(gw_trans->headref);
2852 
2853 		TAILQ_FOREACH_SAFE(dir, &gw_trans->gw_dirs, entry, tdir) {
2854 			free(dir->name);
2855 			free(dir->description);
2856 			free(dir->age);
2857 			free(dir->url);
2858 			free(dir->path);
2859 			free(dir);
2860 		}
2861 
2862 	}
2863 
2864 	khttp_free(gw_trans->gw_req);
2865 	return EXIT_SUCCESS;
2866 }