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Date:: Wed Jan 15 22:10:30 2020 UTC
Message:: terminate diffbuf
Actions:: History | Blame | Raw File
1 /*
2  * Copyright (c) 2019 Tracey Emery <tracey@traceyemery.net>
3  * Copyright (c) 2018, 2019 Stefan Sperling <stsp@openbsd.org>
4  * Copyright (c) 2014, 2015, 2017 Kristaps Dzonsons <kristaps@bsd.lv>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #include <sys/queue.h>
20 #include <sys/stat.h>
21 #include <sys/types.h>
22 
23 #include <dirent.h>
24 #include <err.h>
25 #include <regex.h>
26 #include <stdarg.h>
27 #include <stdbool.h>
28 #include <stdint.h>
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
32 #include <unistd.h>
33 
34 #include <got_object.h>
35 #include <got_reference.h>
36 #include <got_repository.h>
37 #include <got_path.h>
38 #include <got_cancel.h>
39 #include <got_worktree.h>
40 #include <got_diff.h>
41 #include <got_commit_graph.h>
42 #include <got_blame.h>
43 #include <got_privsep.h>
44 #include <got_opentemp.h>
45 
46 #include <kcgi.h>
47 #include <kcgihtml.h>
48 
49 #include "buf.h"
50 #include "gotweb.h"
51 #include "gotweb_ui.h"
52 
53 #ifndef nitems
54 #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
55 #endif
56 
57 struct trans {
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			*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_PATH,
78 	KEY_ACTION,
79 	KEY_COMMIT_ID,
80 	KEY_FILE,
81 	KEY_PAGE,
82 	KEY_HEADREF,
83 	KEY__MAX
84 };
85 
86 struct gw_dir {
87 	TAILQ_ENTRY(gw_dir)	 entry;
88 	char			*name;
89 	char			*owner;
90 	char			*description;
91 	char			*url;
92 	char			*age;
93 	char			*path;
94 };
95 
96 enum tmpl {
97 	TEMPL_HEAD,
98 	TEMPL_HEADER,
99 	TEMPL_SITEPATH,
100 	TEMPL_SITEOWNER,
101 	TEMPL_TITLE,
102 	TEMPL_SEARCH,
103 	TEMPL_CONTENT,
104 	TEMPL__MAX
105 };
106 
107 enum ref_tm {
108 	TM_DIFF,
109 	TM_LONG,
110 };
111 
112 enum logs {
113 	LOGBRIEF,
114 	LOGCOMMIT,
115 	LOGFULL,
116 	LOGTREE,
117 	LOGDIFF,
118 	LOGBLAME,
119 };
120 
121 enum tags {
122 	TAGBRIEF,
123 	TAGFULL,
124 };
125 
126 struct buf {
127 	/* buffer handle, buffer size, and data length */
128 	u_char	*cb_buf;
129 	size_t	 cb_size;
130 	size_t	 cb_len;
131 };
132 
133 static const char *const templs[TEMPL__MAX] = {
134 	"head",
135 	"header",
136 	"sitepath",
137 	"siteowner",
138 	"title",
139 	"search",
140 	"content",
141 };
142 
143 static const struct kvalid gw_keys[KEY__MAX] = {
144 	{ kvalid_stringne,	"path" },
145 	{ kvalid_stringne,	"action" },
146 	{ kvalid_stringne,	"commit" },
147 	{ kvalid_stringne,	"file" },
148 	{ kvalid_int,		"page" },
149 	{ kvalid_stringne,	"headref" },
150 };
151 
152 static struct gw_dir		*gw_init_gw_dir(char *);
153 
154 static char			*gw_get_repo_description(struct trans *,
155 				    char *);
156 static char			*gw_get_repo_owner(struct trans *,
157 				    char *);
158 static char			*gw_get_time_str(time_t, int);
159 static char			*gw_get_repo_age(struct trans *,
160 				    char *, char *, int);
161 static char			*gw_get_repo_log(struct trans *, const char *,
162 				    char *, int, int);
163 static char			*gw_get_repo_tags(struct trans *, int, int);
164 static char			*gw_get_repo_heads(struct trans *);
165 static char			*gw_get_clone_url(struct trans *, char *);
166 static char			*gw_get_got_link(struct trans *);
167 static char			*gw_get_site_link(struct trans *);
168 static char			*gw_html_escape(const char *);
169 
170 static void			 gw_display_open(struct trans *, enum khttp,
171 				    enum kmime);
172 static void			 gw_display_index(struct trans *,
173 				    const struct got_error *);
174 
175 static int			 gw_template(size_t, void *);
176 
177 static const struct got_error*	 apply_unveil(const char *, const char *);
178 static const struct got_error*	 cmp_tags(void *, int *,
179 				    struct got_reference *,
180 				    struct got_reference *);
181 static const struct got_error*	 gw_load_got_paths(struct trans *);
182 static const struct got_error*	 gw_load_got_path(struct trans *,
183 				    struct gw_dir *);
184 static const struct got_error*	 gw_parse_querystring(struct trans *);
185 static const struct got_error*	 match_logmsg(int *, struct got_object_id *,
186 				    struct got_commit_object *, regex_t *);
187 
188 static const struct got_error*	 gw_blame(struct trans *);
189 static const struct got_error*	 gw_blob(struct trans *);
190 static const struct got_error*	 gw_blobdiff(struct trans *);
191 static const struct got_error*	 gw_commit(struct trans *);
192 static const struct got_error*	 gw_commitdiff(struct trans *);
193 static const struct got_error*	 gw_history(struct trans *);
194 static const struct got_error*	 gw_index(struct trans *);
195 static const struct got_error*	 gw_log(struct trans *);
196 static const struct got_error*	 gw_raw(struct trans *);
197 static const struct got_error*	 gw_logbriefs(struct trans *);
198 static const struct got_error*	 gw_snapshot(struct trans *);
199 static const struct got_error*	 gw_summary(struct trans *);
200 static const struct got_error*	 gw_tree(struct 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 trans *);
206 	char			*template;
207 };
208 
209 enum gw_query_actions {
210 	GW_BLAME,
211 	GW_BLOB,
212 	GW_BLOBDIFF,
213 	GW_COMMIT,
214 	GW_COMMITDIFF,
215 	GW_ERR,
216 	GW_HISTORY,
217 	GW_INDEX,
218 	GW_LOG,
219 	GW_RAW,
220 	GW_LOGBRIEFS,
221 	GW_SNAPSHOT,
222 	GW_SUMMARY,
223 	GW_TREE
224 };
225 
226 static struct gw_query_action gw_query_funcs[] = {
227 	{ GW_BLAME,	 "blame",	gw_blame,	"gw_tmpl/index.tmpl" },
228 	{ GW_BLOB,	 "blob",	gw_blob,	"gw_tmpl/index.tmpl" },
229 	{ GW_BLOBDIFF,	 "blobdiff",	gw_blobdiff,	"gw_tmpl/index.tmpl" },
230 	{ GW_COMMIT,	 "commit",	gw_commit,	"gw_tmpl/index.tmpl" },
231 	{ GW_COMMITDIFF, "commitdiff",	gw_commitdiff,	"gw_tmpl/index.tmpl" },
232 	{ GW_ERR,	 NULL,		NULL,		"gw_tmpl/index.tmpl" },
233 	{ GW_HISTORY,	 "history",	gw_history,	"gw_tmpl/index.tmpl" },
234 	{ GW_INDEX,	 "index",	gw_index,	"gw_tmpl/index.tmpl" },
235 	{ GW_LOG,	 "log",		gw_log,		"gw_tmpl/index.tmpl" },
236 	{ GW_RAW,	 "raw",		gw_raw,		"gw_tmpl/index.tmpl" },
237 	{ GW_LOGBRIEFS,	 "logbriefs",	gw_logbriefs,	"gw_tmpl/index.tmpl" },
238 	{ GW_SNAPSHOT,	 "snapshot",	gw_snapshot,	"gw_tmpl/index.tmpl" },
239 	{ GW_SUMMARY,	 "summary",	gw_summary,	"gw_tmpl/index.tmpl" },
240 	{ GW_TREE,	 "tree",	gw_tree,	"gw_tmpl/index.tmpl" },
241 };
242 
243 static const struct got_error *
244 apply_unveil(const char *repo_path, const char *repo_file)
245 {
246 	const struct got_error *err;
247 
248 	if (repo_path && repo_file) {
249 		char *full_path;
250 		if ((asprintf(&full_path, "%s/%s", repo_path, repo_file)) == -1)
251 			return got_error_from_errno("asprintf unveil");
252 		if (unveil(full_path, "r") != 0)
253 			return got_error_from_errno2("unveil", full_path);
254 	}
255 
256 	if (repo_path && unveil(repo_path, "r") != 0)
257 		return got_error_from_errno2("unveil", repo_path);
258 
259 	if (unveil("/tmp", "rwc") != 0)
260 		return got_error_from_errno2("unveil", "/tmp");
261 
262 	err = got_privsep_unveil_exec_helpers();
263 	if (err != NULL)
264 		return err;
265 
266 	if (unveil(NULL, NULL) != 0)
267 		return got_error_from_errno("unveil");
268 
269 	return NULL;
270 }
271 
272 static const struct got_error *
273 cmp_tags(void *arg, int *cmp, struct got_reference *ref1,
274     struct got_reference *ref2)
275 {
276 	const struct got_error *err = NULL;
277 	struct got_repository *repo = arg;
278 	struct got_object_id *id1, *id2 = NULL;
279 	struct got_tag_object *tag1 = NULL, *tag2 = NULL;
280 	time_t time1, time2;
281 
282 	*cmp = 0;
283 
284 	err = got_ref_resolve(&id1, repo, ref1);
285 	if (err)
286 		return err;
287 	err = got_object_open_as_tag(&tag1, repo, id1);
288 	if (err)
289 		goto done;
290 
291 	err = got_ref_resolve(&id2, repo, ref2);
292 	if (err)
293 		goto done;
294 	err = got_object_open_as_tag(&tag2, repo, id2);
295 	if (err)
296 		goto done;
297 
298 	time1 = got_object_tag_get_tagger_time(tag1);
299 	time2 = got_object_tag_get_tagger_time(tag2);
300 
301 	/* Put latest tags first. */
302 	if (time1 < time2)
303 		*cmp = 1;
304 	else if (time1 > time2)
305 		*cmp = -1;
306 	else
307 		err = got_ref_cmp_by_name(NULL, cmp, ref2, ref1);
308 done:
309 	free(id1);
310 	free(id2);
311 	if (tag1)
312 		got_object_tag_close(tag1);
313 	if (tag2)
314 		got_object_tag_close(tag2);
315 	return err;
316 }
317 
318 static const struct got_error *
319 gw_blame(struct trans *gw_trans)
320 {
321 	const struct got_error *error = NULL;
322 
323 	return error;
324 }
325 
326 static const struct got_error *
327 gw_blob(struct trans *gw_trans)
328 {
329 	const struct got_error *error = NULL;
330 
331 	return error;
332 }
333 
334 static const struct got_error *
335 gw_blobdiff(struct trans *gw_trans)
336 {
337 	const struct got_error *error = NULL;
338 
339 	return error;
340 }
341 
342 static const struct got_error *
343 gw_commit(struct trans *gw_trans)
344 {
345 	const struct got_error *error = NULL;
346 	char *log, *log_html;
347 
348 	error = apply_unveil(gw_trans->gw_dir->path, NULL);
349 	if (error)
350 		return error;
351 
352 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit, 1, LOGCOMMIT);
353 
354 	if (log != NULL && strcmp(log, "") != 0) {
355 		if ((asprintf(&log_html, log_commit, log)) == -1)
356 			return got_error_from_errno("asprintf");
357 		khttp_puts(gw_trans->gw_req, log_html);
358 		free(log_html);
359 		free(log);
360 	}
361 	return error;
362 }
363 
364 static const struct got_error *
365 gw_commitdiff(struct trans *gw_trans)
366 {
367 	const struct got_error *error = NULL;
368 	char *log, *log_html;
369 
370 	error = apply_unveil(gw_trans->gw_dir->path, NULL);
371 	if (error)
372 		return error;
373 
374 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit, 1, LOGDIFF);
375 
376 	if (log != NULL && strcmp(log, "") != 0) {
377 		if ((asprintf(&log_html, log_diff, log)) == -1)
378 			return got_error_from_errno("asprintf");
379 		khttp_puts(gw_trans->gw_req, log_html);
380 		free(log_html);
381 		free(log);
382 	}
383 	return error;
384 }
385 
386 static const struct got_error *
387 gw_history(struct trans *gw_trans)
388 {
389 	const struct got_error *error = NULL;
390 
391 	return error;
392 }
393 
394 static const struct got_error *
395 gw_index(struct trans *gw_trans)
396 {
397 	const struct got_error *error = NULL;
398 	struct gw_dir *gw_dir = NULL;
399 	char *html, *navs, *next, *prev;
400 	unsigned int prev_disp = 0, next_disp = 1, dir_c = 0;
401 
402 	error = apply_unveil(gw_trans->gw_conf->got_repos_path, NULL);
403 	if (error)
404 		return error;
405 
406 	error = gw_load_got_paths(gw_trans);
407 	if (error)
408 		return error;
409 
410 	khttp_puts(gw_trans->gw_req, index_projects_header);
411 
412 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry)
413 		dir_c++;
414 
415 	TAILQ_FOREACH(gw_dir, &gw_trans->gw_dirs, entry) {
416 		if (gw_trans->page > 0 && (gw_trans->page *
417 		    gw_trans->gw_conf->got_max_repos_display) > prev_disp) {
418 			prev_disp++;
419 			continue;
420 		}
421 
422 		prev_disp++;
423 		if((asprintf(&navs, index_navs, gw_dir->name, gw_dir->name,
424 		    gw_dir->name, gw_dir->name)) == -1)
425 			return got_error_from_errno("asprintf");
426 
427 		if ((asprintf(&html, index_projects, gw_dir->name, gw_dir->name,
428 		    gw_dir->description, gw_dir->owner, gw_dir->age,
429 		    navs)) == -1)
430 			return got_error_from_errno("asprintf");
431 
432 		khttp_puts(gw_trans->gw_req, html);
433 
434 		free(navs);
435 		free(html);
436 
437 		if (gw_trans->gw_conf->got_max_repos_display == 0)
438 			continue;
439 
440 		if (next_disp == gw_trans->gw_conf->got_max_repos_display)
441 			khttp_puts(gw_trans->gw_req, np_wrapper_start);
442 		else if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
443 		    (gw_trans->page > 0) &&
444 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
445 		    prev_disp == gw_trans->repos_total))
446 			khttp_puts(gw_trans->gw_req, np_wrapper_start);
447 
448 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
449 		    (gw_trans->page > 0) &&
450 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
451 		    prev_disp == gw_trans->repos_total)) {
452 			if ((asprintf(&prev, nav_prev,
453 			    gw_trans->page - 1)) == -1)
454 				return got_error_from_errno("asprintf");
455 			khttp_puts(gw_trans->gw_req, prev);
456 			free(prev);
457 		}
458 
459 		khttp_puts(gw_trans->gw_req, div_end);
460 
461 		if (gw_trans->gw_conf->got_max_repos_display > 0 &&
462 		    next_disp == gw_trans->gw_conf->got_max_repos_display &&
463 		    dir_c != (gw_trans->page + 1) *
464 		    gw_trans->gw_conf->got_max_repos_display) {
465 			if ((asprintf(&next, nav_next,
466 			    gw_trans->page + 1)) == -1)
467 				return got_error_from_errno("calloc");
468 			khttp_puts(gw_trans->gw_req, next);
469 			khttp_puts(gw_trans->gw_req, div_end);
470 			free(next);
471 			next_disp = 0;
472 			break;
473 		}
474 
475 		if ((gw_trans->gw_conf->got_max_repos_display > 0) &&
476 		    (gw_trans->page > 0) &&
477 		    (next_disp == gw_trans->gw_conf->got_max_repos_display ||
478 		    prev_disp == gw_trans->repos_total))
479 			khttp_puts(gw_trans->gw_req, div_end);
480 
481 		next_disp++;
482 	}
483 	return error;
484 }
485 
486 static const struct got_error *
487 gw_log(struct trans *gw_trans)
488 {
489 	const struct got_error *error = NULL;
490 	char *log, *log_html;
491 
492 	error = apply_unveil(gw_trans->gw_dir->path, NULL);
493 	if (error)
494 		return error;
495 
496 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit,
497 	    gw_trans->gw_conf->got_max_commits_display, LOGFULL);
498 
499 	if (log != NULL && strcmp(log, "") != 0) {
500 		if ((asprintf(&log_html, logs, log)) == -1)
501 			return got_error_from_errno("asprintf");
502 		khttp_puts(gw_trans->gw_req, log_html);
503 		free(log_html);
504 		free(log);
505 	}
506 	return error;
507 }
508 
509 static const struct got_error *
510 gw_raw(struct trans *gw_trans)
511 {
512 	const struct got_error *error = NULL;
513 
514 	return error;
515 }
516 
517 static const struct got_error *
518 gw_logbriefs(struct trans *gw_trans)
519 {
520 	const struct got_error *error = NULL;
521 	char *log, *log_html;
522 
523 	error = apply_unveil(gw_trans->gw_dir->path, NULL);
524 	if (error)
525 		return error;
526 
527 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit,
528 	    gw_trans->gw_conf->got_max_commits_display, LOGBRIEF);
529 
530 	if (log != NULL && strcmp(log, "") != 0) {
531 		if ((asprintf(&log_html, summary_logbriefs,
532 		    log)) == -1)
533 			return got_error_from_errno("asprintf");
534 		khttp_puts(gw_trans->gw_req, log_html);
535 		free(log_html);
536 		free(log);
537 	}
538 	return error;
539 }
540 
541 static const struct got_error *
542 gw_snapshot(struct trans *gw_trans)
543 {
544 	const struct got_error *error = NULL;
545 
546 	return error;
547 }
548 
549 static const struct got_error *
550 gw_summary(struct trans *gw_trans)
551 {
552 	const struct got_error *error = NULL;
553 	char *description_html, *repo_owner_html, *repo_age_html,
554 	     *cloneurl_html, *log, *log_html, *tags, *heads, *tags_html,
555 	     *heads_html, *age;
556 
557 	error = apply_unveil(gw_trans->gw_dir->path, NULL);
558 	if (error)
559 		return error;
560 
561 	khttp_puts(gw_trans->gw_req, summary_wrapper);
562 	if (gw_trans->gw_conf->got_show_repo_description) {
563 		if (gw_trans->gw_dir->description != NULL &&
564 		    (strcmp(gw_trans->gw_dir->description, "") != 0)) {
565 			if ((asprintf(&description_html, description,
566 			    gw_trans->gw_dir->description)) == -1)
567 				return got_error_from_errno("asprintf");
568 
569 			khttp_puts(gw_trans->gw_req, description_html);
570 			free(description_html);
571 		}
572 	}
573 
574 	if (gw_trans->gw_conf->got_show_repo_owner) {
575 		if (gw_trans->gw_dir->owner != NULL &&
576 		    (strcmp(gw_trans->gw_dir->owner, "") != 0)) {
577 			if ((asprintf(&repo_owner_html, repo_owner,
578 			    gw_trans->gw_dir->owner)) == -1)
579 				return got_error_from_errno("asprintf");
580 
581 			khttp_puts(gw_trans->gw_req, repo_owner_html);
582 			free(repo_owner_html);
583 		}
584 	}
585 
586 	if (gw_trans->gw_conf->got_show_repo_age) {
587 		age = gw_get_repo_age(gw_trans, gw_trans->gw_dir->path,
588 		    "refs/heads", TM_LONG);
589 		if (age != NULL && (strcmp(age, "") != 0)) {
590 			if ((asprintf(&repo_age_html, last_change, age)) == -1)
591 				return got_error_from_errno("asprintf");
592 
593 			khttp_puts(gw_trans->gw_req, repo_age_html);
594 			free(repo_age_html);
595 			free(age);
596 		}
597 	}
598 
599 	if (gw_trans->gw_conf->got_show_repo_cloneurl) {
600 		if (gw_trans->gw_dir->url != NULL &&
601 		    (strcmp(gw_trans->gw_dir->url, "") != 0)) {
602 			if ((asprintf(&cloneurl_html, cloneurl,
603 			    gw_trans->gw_dir->url)) == -1)
604 				return got_error_from_errno("asprintf");
605 
606 			khttp_puts(gw_trans->gw_req, cloneurl_html);
607 			free(cloneurl_html);
608 		}
609 	}
610 	khttp_puts(gw_trans->gw_req, div_end);
611 
612 	log = gw_get_repo_log(gw_trans, NULL, NULL, D_MAXSLCOMMDISP, 0);
613 	tags = gw_get_repo_tags(gw_trans, D_MAXSLCOMMDISP, TAGBRIEF);
614 	heads = gw_get_repo_heads(gw_trans);
615 
616 	if (log != NULL && strcmp(log, "") != 0) {
617 		if ((asprintf(&log_html, summary_logbriefs,
618 		    log)) == -1)
619 			return got_error_from_errno("asprintf");
620 		khttp_puts(gw_trans->gw_req, log_html);
621 		free(log_html);
622 		free(log);
623 	}
624 
625 	if (tags != NULL && strcmp(tags, "") != 0) {
626 		if ((asprintf(&tags_html, summary_tags,
627 		    tags)) == -1)
628 			return got_error_from_errno("asprintf");
629 		khttp_puts(gw_trans->gw_req, tags_html);
630 		free(tags_html);
631 		free(tags);
632 	}
633 
634 	if (heads != NULL && strcmp(heads, "") != 0) {
635 		if ((asprintf(&heads_html, summary_heads,
636 		    heads)) == -1)
637 			return got_error_from_errno("asprintf");
638 		khttp_puts(gw_trans->gw_req, heads_html);
639 		free(heads_html);
640 		free(heads);
641 	}
642 	return error;
643 }
644 
645 static const struct got_error *
646 gw_tree(struct trans *gw_trans)
647 {
648 	const struct got_error *error = NULL;
649 	char *log, *log_html;
650 
651 	error = apply_unveil(gw_trans->gw_dir->path, NULL);
652 	if (error)
653 		return error;
654 
655 	log = gw_get_repo_log(gw_trans, NULL, gw_trans->commit, 1, LOGTREE);
656 
657 	if (log != NULL && strcmp(log, "") != 0) {
658 		if ((asprintf(&log_html, log_tree, log)) == -1)
659 			return got_error_from_errno("asprintf");
660 		khttp_puts(gw_trans->gw_req, log_html);
661 		free(log_html);
662 		free(log);
663 	}
664 	return error;
665 }
666 
667 static const struct got_error *
668 gw_load_got_path(struct trans *gw_trans, struct gw_dir *gw_dir)
669 {
670 	const struct got_error *error = NULL;
671 	DIR *dt;
672 	char *dir_test;
673 	int opened = 0;
674 
675 	if ((asprintf(&dir_test, "%s/%s/%s",
676 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
677 	    GOTWEB_GIT_DIR)) == -1)
678 		return got_error_from_errno("asprintf");
679 
680 	dt = opendir(dir_test);
681 	if (dt == NULL) {
682 		free(dir_test);
683 	} else {
684 		gw_dir->path = strdup(dir_test);
685 		opened = 1;
686 		goto done;
687 	}
688 
689 	if ((asprintf(&dir_test, "%s/%s/%s",
690 	    gw_trans->gw_conf->got_repos_path, gw_dir->name,
691 	    GOTWEB_GOT_DIR)) == -1)
692 		return got_error_from_errno("asprintf");
693 
694 	dt = opendir(dir_test);
695 	if (dt == NULL)
696 		free(dir_test);
697 	else {
698 		opened = 1;
699 		error = got_error(GOT_ERR_NOT_GIT_REPO);
700 		goto errored;
701 	}
702 
703 	if ((asprintf(&dir_test, "%s/%s",
704 	    gw_trans->gw_conf->got_repos_path, gw_dir->name)) == -1)
705 		return got_error_from_errno("asprintf");
706 
707 	gw_dir->path = strdup(dir_test);
708 
709 done:
710 	gw_dir->description = gw_get_repo_description(gw_trans,
711 	    gw_dir->path);
712 	gw_dir->owner = gw_get_repo_owner(gw_trans, gw_dir->path);
713 	gw_dir->age = gw_get_repo_age(gw_trans, gw_dir->path, "refs/heads",
714 	    TM_DIFF);
715 	gw_dir->url = gw_get_clone_url(gw_trans, gw_dir->path);
716 
717 errored:
718 	free(dir_test);
719 	if (opened)
720 		closedir(dt);
721 	return error;
722 }
723 
724 static const struct got_error *
725 gw_load_got_paths(struct trans *gw_trans)
726 {
727 	const struct got_error *error = NULL;
728 	DIR *d;
729 	struct dirent **sd_dent;
730 	struct gw_dir *gw_dir;
731 	struct stat st;
732 	unsigned int d_cnt, d_i;
733 
734 	d = opendir(gw_trans->gw_conf->got_repos_path);
735 	if (d == NULL) {
736 		error = got_error_from_errno2("opendir",
737 		    gw_trans->gw_conf->got_repos_path);
738 		return error;
739 	}
740 
741 	d_cnt = scandir(gw_trans->gw_conf->got_repos_path, &sd_dent, NULL,
742 	    alphasort);
743 	if (d_cnt == -1) {
744 		error = got_error_from_errno2("scandir",
745 		    gw_trans->gw_conf->got_repos_path);
746 		return error;
747 	}
748 
749 	for (d_i = 0; d_i < d_cnt; d_i++) {
750 		if (gw_trans->gw_conf->got_max_repos > 0 &&
751 		    (d_i - 2) == gw_trans->gw_conf->got_max_repos)
752 			break; /* account for parent and self */
753 
754 		if (strcmp(sd_dent[d_i]->d_name, ".") == 0 ||
755 		    strcmp(sd_dent[d_i]->d_name, "..") == 0)
756 			continue;
757 
758 		if ((gw_dir = gw_init_gw_dir(sd_dent[d_i]->d_name)) == NULL)
759 			return got_error_from_errno("gw_dir malloc");
760 
761 		error = gw_load_got_path(gw_trans, gw_dir);
762 		if (error && error->code == GOT_ERR_NOT_GIT_REPO)
763 			continue;
764 		else if (error)
765 			return error;
766 
767 		if (lstat(gw_dir->path, &st) == 0 && S_ISDIR(st.st_mode) &&
768 		    !got_path_dir_is_empty(gw_dir->path)) {
769 			TAILQ_INSERT_TAIL(&gw_trans->gw_dirs, gw_dir,
770 			    entry);
771 			gw_trans->repos_total++;
772 		}
773 	}
774 
775 	closedir(d);
776 	return error;
777 }
778 
779 static const struct got_error *
780 gw_parse_querystring(struct trans *gw_trans)
781 {
782 	const struct got_error *error = NULL;
783 	struct kpair *p;
784 	struct gw_query_action *action = NULL;
785 	unsigned int i;
786 
787 	if (gw_trans->gw_req->fieldnmap[0]) {
788 		error = got_error_from_errno("bad parse");
789 		return error;
790 	} else if ((p = gw_trans->gw_req->fieldmap[KEY_PATH])) {
791 		/* define gw_trans->repo_path */
792 		if ((asprintf(&gw_trans->repo_name, "%s", p->parsed.s)) == -1)
793 			return got_error_from_errno("asprintf");
794 
795 		if ((asprintf(&gw_trans->repo_path, "%s/%s",
796 		    gw_trans->gw_conf->got_repos_path, p->parsed.s)) == -1)
797 			return got_error_from_errno("asprintf");
798 
799  		if ((p = gw_trans->gw_req->fieldmap[KEY_COMMIT_ID]))
800 			if ((asprintf(&gw_trans->commit, "%s",
801 			    p->parsed.s)) == -1)
802 				return got_error_from_errno("asprintf");
803 
804 		/* get action and set function */
805 		if ((p = gw_trans->gw_req->fieldmap[KEY_ACTION]))
806 			for (i = 0; i < nitems(gw_query_funcs); i++) {
807 				action = &gw_query_funcs[i];
808 				if (action->func_name == NULL)
809 					continue;
810 
811 				if (strcmp(action->func_name,
812 				    p->parsed.s) == 0) {
813 					gw_trans->action = i;
814 					if ((asprintf(&gw_trans->action_name,
815 					    "%s", action->func_name)) == -1)
816 						return
817 						got_error_from_errno(
818 						    "asprintf");
819 
820 					break;
821 				}
822 
823 				action = NULL;
824 			}
825 
826 		if ((p = gw_trans->gw_req->fieldmap[KEY_FILE]))
827 			if ((asprintf(&gw_trans->repo_file, "%s",
828 			    p->parsed.s)) == -1)
829 				return got_error_from_errno("asprintf");
830 
831 		if ((p = gw_trans->gw_req->fieldmap[KEY_HEADREF]))
832 			if ((asprintf(&gw_trans->headref, "%s",
833 			    p->parsed.s)) == -1)
834 				return got_error_from_errno("asprintf");
835 
836 		if (action == NULL) {
837 			error = got_error_from_errno("invalid action");
838 			return error;
839 		}
840 		if ((gw_trans->gw_dir =
841 		    gw_init_gw_dir(gw_trans->repo_name)) == NULL)
842 			return got_error_from_errno("gw_dir malloc");
843 
844 		error = gw_load_got_path(gw_trans, gw_trans->gw_dir);
845 		if (error)
846 			return error;
847 	} else
848 		gw_trans->action = GW_INDEX;
849 
850 	if ((p = gw_trans->gw_req->fieldmap[KEY_PAGE]))
851 		gw_trans->page = p->parsed.i;
852 
853 	if (gw_trans->action == GW_RAW)
854 		gw_trans->mime = KMIME_TEXT_PLAIN;
855 
856 	return error;
857 }
858 
859 static struct gw_dir *
860 gw_init_gw_dir(char *dir)
861 {
862 	struct gw_dir *gw_dir;
863 
864 	if ((gw_dir = malloc(sizeof(*gw_dir))) == NULL)
865 		return NULL;
866 
867 	if ((asprintf(&gw_dir->name, "%s", dir)) == -1)
868 		return NULL;
869 
870 	return gw_dir;
871 }
872 
873 static const struct got_error*
874 match_logmsg(int *have_match, struct got_object_id *id,
875     struct got_commit_object *commit, regex_t *regex)
876 {
877 	const struct got_error *err = NULL;
878 	regmatch_t regmatch;
879 	char *id_str = NULL, *logmsg = NULL;
880 
881 	*have_match = 0;
882 
883 	err = got_object_id_str(&id_str, id);
884 	if (err)
885 		return err;
886 
887 	err = got_object_commit_get_logmsg(&logmsg, commit);
888 	if (err)
889 		goto done;
890 
891 	if (regexec(regex, logmsg, 1, &regmatch, 0) == 0)
892 		*have_match = 1;
893 done:
894 	free(id_str);
895 	free(logmsg);
896 	return err;
897 }
898 
899 static void
900 gw_display_open(struct trans *gw_trans, enum khttp code, enum kmime mime)
901 {
902 	khttp_head(gw_trans->gw_req, kresps[KRESP_ALLOW], "GET");
903 	khttp_head(gw_trans->gw_req, kresps[KRESP_STATUS], "%s",
904 	    khttps[code]);
905 	khttp_head(gw_trans->gw_req, kresps[KRESP_CONTENT_TYPE], "%s",
906 	    kmimetypes[mime]);
907 	khttp_head(gw_trans->gw_req, "X-Content-Type-Options", "nosniff");
908 	khttp_head(gw_trans->gw_req, "X-Frame-Options", "DENY");
909 	khttp_head(gw_trans->gw_req, "X-XSS-Protection", "1; mode=block");
910 	khttp_body(gw_trans->gw_req);
911 }
912 
913 static void
914 gw_display_index(struct trans *gw_trans, const struct got_error *err)
915 {
916 	gw_display_open(gw_trans, KHTTP_200, gw_trans->mime);
917 	khtml_open(gw_trans->gw_html_req, gw_trans->gw_req, 0);
918 
919 	if (err)
920 		khttp_puts(gw_trans->gw_req, err->msg);
921 	else
922 		khttp_template(gw_trans->gw_req, gw_trans->gw_tmpl,
923 		    gw_query_funcs[gw_trans->action].template);
924 
925 	khtml_close(gw_trans->gw_html_req);
926 }
927 
928 static int
929 gw_template(size_t key, void *arg)
930 {
931 	const struct got_error *error = NULL;
932 	struct trans *gw_trans = arg;
933 	char *gw_got_link, *gw_site_link;
934 	char *site_owner_name, *site_owner_name_h;
935 
936 	switch (key) {
937 	case (TEMPL_HEAD):
938 		khttp_puts(gw_trans->gw_req, head);
939 		break;
940 	case(TEMPL_HEADER):
941 		gw_got_link = gw_get_got_link(gw_trans);
942 		if (gw_got_link != NULL)
943 			khttp_puts(gw_trans->gw_req, gw_got_link);
944 
945 		free(gw_got_link);
946 		break;
947 	case (TEMPL_SITEPATH):
948 		gw_site_link = gw_get_site_link(gw_trans);
949 		if (gw_site_link != NULL)
950 			khttp_puts(gw_trans->gw_req, gw_site_link);
951 
952 		free(gw_site_link);
953 		break;
954 	case(TEMPL_TITLE):
955 		if (gw_trans->gw_conf->got_site_name != NULL)
956 			khtml_puts(gw_trans->gw_html_req,
957 			    gw_trans->gw_conf->got_site_name);
958 
959 		break;
960 	case (TEMPL_SEARCH):
961 		khttp_puts(gw_trans->gw_req, search);
962 		break;
963 	case(TEMPL_SITEOWNER):
964 		if (gw_trans->gw_conf->got_site_owner != NULL &&
965 		    gw_trans->gw_conf->got_show_site_owner) {
966 			site_owner_name =
967 			    gw_html_escape(gw_trans->gw_conf->got_site_owner);
968 			if ((asprintf(&site_owner_name_h, site_owner,
969 			    site_owner_name))
970 			    == -1)
971 				return 0;
972 
973 			khttp_puts(gw_trans->gw_req, site_owner_name_h);
974 			free(site_owner_name);
975 			free(site_owner_name_h);
976 		}
977 		break;
978 	case(TEMPL_CONTENT):
979 		error = gw_query_funcs[gw_trans->action].func_main(gw_trans);
980 		if (error)
981 			khttp_puts(gw_trans->gw_req, error->msg);
982 
983 		break;
984 	default:
985 		return 0;
986 		break;
987 	}
988 	return 1;
989 }
990 
991 static char *
992 gw_get_repo_description(struct trans *gw_trans, char *dir)
993 {
994 	FILE *f;
995 	char *description = NULL, *d_file = NULL;
996 	unsigned int len;
997 
998 	if (gw_trans->gw_conf->got_show_repo_description == false)
999 		goto err;
1000 
1001 	if ((asprintf(&d_file, "%s/description", dir)) == -1)
1002 		goto err;
1003 
1004 	if ((f = fopen(d_file, "r")) == NULL)
1005 		goto err;
1006 
1007 	fseek(f, 0, SEEK_END);
1008 	len = ftell(f) + 1;
1009 	fseek(f, 0, SEEK_SET);
1010 	if ((description = calloc(len, sizeof(char *))) == NULL)
1011 		goto err;
1012 
1013 	fread(description, 1, len, f);
1014 	fclose(f);
1015 	free(d_file);
1016 	return description;
1017 err:
1018 	if ((asprintf(&description, "%s", "")) == -1)
1019 		return NULL;
1020 
1021 	return description;
1022 }
1023 
1024 static char *
1025 gw_get_time_str(time_t committer_time, int ref_tm)
1026 {
1027 	struct tm tm;
1028 	time_t diff_time;
1029 	char *years = "years ago", *months = "months ago";
1030 	char *weeks = "weeks ago", *days = "days ago", *hours = "hours ago";
1031 	char *minutes = "minutes ago", *seconds = "seconds ago";
1032 	char *now = "right now";
1033 	char *repo_age, *s;
1034 	char datebuf[29];
1035 
1036 	switch (ref_tm) {
1037 	case TM_DIFF:
1038 		diff_time = time(NULL) - committer_time;
1039 		if (diff_time > 60 * 60 * 24 * 365 * 2) {
1040 			if ((asprintf(&repo_age, "%lld %s",
1041 			    (diff_time / 60 / 60 / 24 / 365), years)) == -1)
1042 				return NULL;
1043 		} else if (diff_time > 60 * 60 * 24 * (365 / 12) * 2) {
1044 			if ((asprintf(&repo_age, "%lld %s",
1045 			    (diff_time / 60 / 60 / 24 / (365 / 12)),
1046 			    months)) == -1)
1047 				return NULL;
1048 		} else if (diff_time > 60 * 60 * 24 * 7 * 2) {
1049 			if ((asprintf(&repo_age, "%lld %s",
1050 			    (diff_time / 60 / 60 / 24 / 7), weeks)) == -1)
1051 				return NULL;
1052 		} else if (diff_time > 60 * 60 * 24 * 2) {
1053 			if ((asprintf(&repo_age, "%lld %s",
1054 			    (diff_time / 60 / 60 / 24), days)) == -1)
1055 				return NULL;
1056 		} else if (diff_time > 60 * 60 * 2) {
1057 			if ((asprintf(&repo_age, "%lld %s",
1058 			    (diff_time / 60 / 60), hours)) == -1)
1059 				return NULL;
1060 		} else if (diff_time > 60 * 2) {
1061 			if ((asprintf(&repo_age, "%lld %s", (diff_time / 60),
1062 			    minutes)) == -1)
1063 				return NULL;
1064 		} else if (diff_time > 2) {
1065 			if ((asprintf(&repo_age, "%lld %s", diff_time,
1066 			    seconds)) == -1)
1067 				return NULL;
1068 		} else {
1069 			if ((asprintf(&repo_age, "%s", now)) == -1)
1070 				return NULL;
1071 		}
1072 		break;
1073 	case TM_LONG:
1074 		if (gmtime_r(&committer_time, &tm) == NULL)
1075 			return NULL;
1076 
1077 		s = asctime_r(&tm, datebuf);
1078 		if (s == NULL)
1079 			return NULL;
1080 
1081 		if ((asprintf(&repo_age, "%s UTC", datebuf)) == -1)
1082 			return NULL;
1083 		break;
1084 	}
1085 	return repo_age;
1086 }
1087 
1088 static char *
1089 gw_get_repo_age(struct trans *gw_trans, char *dir, char *repo_ref, int ref_tm)
1090 {
1091 	const struct got_error *error = NULL;
1092 	struct got_object_id *id = NULL;
1093 	struct got_repository *repo = NULL;
1094 	struct got_commit_object *commit = NULL;
1095 	struct got_reflist_head refs;
1096 	struct got_reflist_entry *re;
1097 	struct got_reference *head_ref;
1098 	int is_head = 0;
1099 	time_t committer_time = 0, cmp_time = 0;
1100 	const char *refname;
1101 	char *repo_age = NULL;
1102 
1103 	if (repo_ref == NULL)
1104 		return NULL;
1105 
1106 	if (strncmp(repo_ref, "refs/heads/", 11) == 0)
1107 		is_head = 1;
1108 
1109 	SIMPLEQ_INIT(&refs);
1110 	if (gw_trans->gw_conf->got_show_repo_age == false) {
1111 		if ((asprintf(&repo_age, "")) == -1)
1112 			return NULL;
1113 		return repo_age;
1114 	}
1115 
1116 	error = got_repo_open(&repo, dir, NULL);
1117 	if (error != NULL)
1118 		goto err;
1119 
1120 	if (is_head)
1121 		error = got_ref_list(&refs, repo, "refs/heads",
1122 		    got_ref_cmp_by_name, NULL);
1123 	else
1124 		error = got_ref_list(&refs, repo, repo_ref,
1125 		    got_ref_cmp_by_name, NULL);
1126 	if (error != NULL)
1127 		goto err;
1128 
1129 	SIMPLEQ_FOREACH(re, &refs, entry) {
1130 		if (is_head)
1131 			refname = strdup(repo_ref);
1132 		else
1133 			refname = got_ref_get_name(re->ref);
1134 		error = got_ref_open(&head_ref, repo, refname, 0);
1135 		if (error != NULL)
1136 			goto err;
1137 
1138 		error = got_ref_resolve(&id, repo, head_ref);
1139 		got_ref_close(head_ref);
1140 		if (error != NULL)
1141 			goto err;
1142 
1143 		error = got_object_open_as_commit(&commit, repo, id);
1144 		if (error != NULL)
1145 			goto err;
1146 
1147 		committer_time =
1148 		    got_object_commit_get_committer_time(commit);
1149 
1150 		if (cmp_time < committer_time)
1151 			cmp_time = committer_time;
1152 	}
1153 
1154 	if (cmp_time != 0) {
1155 		committer_time = cmp_time;
1156 		repo_age = gw_get_time_str(committer_time, ref_tm);
1157 	} else
1158 		if ((asprintf(&repo_age, "")) == -1)
1159 			return NULL;
1160 	got_ref_list_free(&refs);
1161 	free(id);
1162 	return repo_age;
1163 err:
1164 	if ((asprintf(&repo_age, "%s", error->msg)) == -1)
1165 		return NULL;
1166 
1167 	return repo_age;
1168 }
1169 
1170 static char *
1171 gw_get_repo_owner(struct trans *gw_trans, char *dir)
1172 {
1173 	FILE *f;
1174 	char *owner = NULL, *d_file = NULL;
1175 	char *gotweb = "[gotweb]", *gitweb = "[gitweb]", *gw_owner = "owner";
1176 	char *comp, *pos, *buf;
1177 	unsigned int i;
1178 
1179 	if (gw_trans->gw_conf->got_show_repo_owner == false)
1180 		goto err;
1181 
1182 	if ((asprintf(&d_file, "%s/config", dir)) == -1)
1183 		goto err;
1184 
1185 	if ((f = fopen(d_file, "r")) == NULL)
1186 		goto err;
1187 
1188 	if ((buf = calloc(128, sizeof(char *))) == NULL)
1189 		goto err;
1190 
1191 	while ((fgets(buf, 128, f)) != NULL) {
1192 		if ((pos = strstr(buf, gotweb)) != NULL)
1193 			break;
1194 
1195 		if ((pos = strstr(buf, gitweb)) != NULL)
1196 			break;
1197 	}
1198 
1199 	if (pos == NULL)
1200 		goto err;
1201 
1202 	do {
1203 		fgets(buf, 128, f);
1204 	} while ((comp = strcasestr(buf, gw_owner)) == NULL);
1205 
1206 	if (comp == NULL)
1207 		goto err;
1208 
1209 	if (strncmp(gw_owner, comp, strlen(gw_owner)) != 0)
1210 		goto err;
1211 
1212 	for (i = 0; i < 2; i++) {
1213 		owner = strsep(&buf, "\"");
1214 	}
1215 
1216 	if (owner == NULL)
1217 		goto err;
1218 
1219 	fclose(f);
1220 	free(d_file);
1221 	return owner;
1222 err:
1223 	if ((asprintf(&owner, "%s", "")) == -1)
1224 		return NULL;
1225 
1226 	return owner;
1227 }
1228 
1229 static char *
1230 gw_get_clone_url(struct trans *gw_trans, char *dir)
1231 {
1232 	FILE *f;
1233 	char *url = NULL, *d_file = NULL;
1234 	unsigned int len;
1235 
1236 	if ((asprintf(&d_file, "%s/cloneurl", dir)) == -1)
1237 		return NULL;
1238 
1239 	if ((f = fopen(d_file, "r")) == NULL)
1240 		return NULL;
1241 
1242 	fseek(f, 0, SEEK_END);
1243 	len = ftell(f) + 1;
1244 	fseek(f, 0, SEEK_SET);
1245 
1246 	if ((url = calloc(len, sizeof(char *))) == NULL)
1247 		return NULL;
1248 
1249 	fread(url, 1, len, f);
1250 	fclose(f);
1251 	free(d_file);
1252 	return url;
1253 }
1254 
1255 static char *
1256 gw_get_repo_log(struct trans *gw_trans, const char *search_pattern,
1257     char *start_commit, int limit, int log_type)
1258 {
1259 	const struct got_error *error;
1260 	struct got_repository *repo = NULL;
1261 	struct got_reflist_head refs;
1262 	struct got_reflist_entry *re;
1263 	struct got_commit_object *commit = NULL;
1264 	struct got_object_id *id1 = NULL, *id2 = NULL;
1265 	struct got_object_qid *parent_id;
1266 	struct got_commit_graph *graph = NULL;
1267 	char *logs = NULL, *id_str1 = NULL, *id_str2 = NULL, *path = NULL,
1268 	     *in_repo_path = NULL, *refs_str = NULL, *refs_str_disp = NULL,
1269 	     *treeid = NULL, *commit_row = NULL, *commit_commit = NULL,
1270 	     *commit_commit_disp = NULL, *commit_age_diff = NULL,
1271 	     *commit_age_diff_disp = NULL, *commit_age_long = NULL,
1272 	     *commit_age_long_disp = NULL, *commit_author = NULL,
1273 	     *commit_author_disp = NULL, *commit_committer = NULL,
1274 	     *commit_committer_disp = NULL, *commit_log = NULL,
1275 	     *commit_log_disp = NULL, *commit_parent = NULL,
1276 	     *commit_diff_disp = NULL, *logbriefs_navs_html = NULL,
1277 	     *log_tree_html = NULL, *log_commit_html = NULL,
1278 	     *log_diff_html = NULL, *commit_tree = NULL,
1279 	     *commit_tree_disp = NULL;
1280 	char *commit_log0, *newline;
1281 	regex_t regex;
1282 	int have_match;
1283 	size_t newsize;
1284 	struct buf *diffbuf = NULL;
1285 	time_t committer_time;
1286 
1287 	error = buf_alloc(&diffbuf, 0);
1288 	if (error != NULL)
1289 		return NULL;
1290 
1291 	if (search_pattern &&
1292 	    regcomp(&regex, search_pattern, REG_EXTENDED | REG_NOSUB |
1293 	    REG_NEWLINE))
1294 		return NULL;
1295 
1296 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
1297 	if (error != NULL)
1298 		return NULL;
1299 
1300 	SIMPLEQ_INIT(&refs);
1301 
1302 	if (start_commit == NULL) {
1303 		struct got_reference *head_ref;
1304 		error = got_ref_open(&head_ref, repo, gw_trans->headref, 0);
1305 		if (error != NULL)
1306 			goto done;
1307 
1308 		error = got_ref_resolve(&id1, repo, head_ref);
1309 		got_ref_close(head_ref);
1310 		if (error != NULL)
1311 			goto done;
1312 
1313 		error = got_object_open_as_commit(&commit, repo, id1);
1314 	} else {
1315 		struct got_reference *ref;
1316 		error = got_ref_open(&ref, repo, start_commit, 0);
1317 		if (error == NULL) {
1318 			int obj_type;
1319 			error = got_ref_resolve(&id1, repo, ref);
1320 			got_ref_close(ref);
1321 			if (error != NULL)
1322 				goto done;
1323 			error = got_object_get_type(&obj_type, repo, id1);
1324 			if (error != NULL)
1325 				goto done;
1326 			if (obj_type == GOT_OBJ_TYPE_TAG) {
1327 				struct got_tag_object *tag;
1328 				error = got_object_open_as_tag(&tag, repo, id1);
1329 				if (error != NULL)
1330 					goto done;
1331 				if (got_object_tag_get_object_type(tag) !=
1332 				    GOT_OBJ_TYPE_COMMIT) {
1333 					got_object_tag_close(tag);
1334 					error = got_error(GOT_ERR_OBJ_TYPE);
1335 					goto done;
1336 				}
1337 				free(id1);
1338 				id1 = got_object_id_dup(
1339 				    got_object_tag_get_object_id(tag));
1340 				if (id1 == NULL)
1341 					error = got_error_from_errno(
1342 					    "got_object_id_dup");
1343 				got_object_tag_close(tag);
1344 				if (error)
1345 					goto done;
1346 			} else if (obj_type != GOT_OBJ_TYPE_COMMIT) {
1347 				error = got_error(GOT_ERR_OBJ_TYPE);
1348 				goto done;
1349 			}
1350 			error = got_object_open_as_commit(&commit, repo, id1);
1351 			if (error != NULL)
1352 				goto done;
1353 		}
1354 		if (commit == NULL) {
1355 			error = got_repo_match_object_id_prefix(&id1,
1356 			    start_commit, GOT_OBJ_TYPE_COMMIT, repo);
1357 			if (error != NULL)
1358 				goto done;
1359 		}
1360 		error = got_repo_match_object_id_prefix(&id1,
1361 			    start_commit, GOT_OBJ_TYPE_COMMIT, repo);
1362 			if (error != NULL)
1363 				goto done;
1364 	}
1365 
1366 	if (error != NULL)
1367 		goto done;
1368 
1369 	error = got_repo_map_path(&in_repo_path, repo, gw_trans->repo_path, 1);
1370 	if (error != NULL)
1371 		goto done;
1372 
1373 	if (in_repo_path) {
1374 		free(path);
1375 		path = in_repo_path;
1376 	}
1377 
1378 	error = got_ref_list(&refs, repo, NULL, got_ref_cmp_by_name, NULL);
1379 	if (error)
1380 		goto done;
1381 
1382 	error = got_commit_graph_open(&graph, id1, path, 0, repo);
1383 	if (error)
1384 		goto done;
1385 
1386 	error = got_commit_graph_iter_start(graph, id1, repo, NULL, NULL);
1387 	if (error)
1388 		goto done;
1389 
1390 	for (;;) {
1391 		error = got_commit_graph_iter_next(&id1, graph);
1392 		if (error) {
1393 			if (error->code == GOT_ERR_ITER_COMPLETED) {
1394 				error = NULL;
1395 				break;
1396 			}
1397 			if (error->code != GOT_ERR_ITER_NEED_MORE)
1398 				break;
1399 			error = got_commit_graph_fetch_commits(graph, 1, repo,
1400 			    NULL, NULL);
1401 			if (error)
1402 				break;
1403 			else
1404 				continue;
1405 		}
1406 		if (id1 == NULL)
1407 			break;
1408 
1409 		error = got_object_open_as_commit(&commit, repo, id1);
1410 		if (error)
1411 			break;
1412 
1413 		if (search_pattern) {
1414 			error = match_logmsg(&have_match, id1, commit,
1415 			    &regex);
1416 			if (error) {
1417 				got_object_commit_close(commit);
1418 				break;
1419 			}
1420 			if (have_match == 0) {
1421 				got_object_commit_close(commit);
1422 				continue;
1423 			}
1424 		}
1425 
1426 		SIMPLEQ_FOREACH(re, &refs, entry) {
1427 			char *s;
1428 			const char *name;
1429 			struct got_tag_object *tag = NULL;
1430 			int cmp;
1431 
1432 			name = got_ref_get_name(re->ref);
1433 			if (strcmp(name, GOT_REF_HEAD) == 0)
1434 				continue;
1435 			if (strncmp(name, "refs/", 5) == 0)
1436 				name += 5;
1437 			if (strncmp(name, "got/", 4) == 0)
1438 				continue;
1439 			if (strncmp(name, "heads/", 6) == 0)
1440 				name += 6;
1441 			if (strncmp(name, "remotes/", 8) == 0)
1442 				name += 8;
1443 			if (strncmp(name, "tags/", 5) == 0) {
1444 				error = got_object_open_as_tag(&tag, repo,
1445 				    re->id);
1446 				if (error) {
1447 					if (error->code != GOT_ERR_OBJ_TYPE)
1448 						continue;
1449 					/*
1450 					 * Ref points at something other
1451 					 * than a tag.
1452 					 */
1453 					error = NULL;
1454 					tag = NULL;
1455 				}
1456 			}
1457 			cmp = got_object_id_cmp(tag ?
1458 			    got_object_tag_get_object_id(tag) : re->id, id1);
1459 			if (tag)
1460 				got_object_tag_close(tag);
1461 			if (cmp != 0)
1462 				continue;
1463 			s = refs_str;
1464 			if ((asprintf(&refs_str, "%s%s%s", s ? s : "",
1465 			    s ? ", " : "", name)) == -1) {
1466 				error = got_error_from_errno("asprintf");
1467 				free(s);
1468 				goto done;
1469 			}
1470 			free(s);
1471 		}
1472 
1473 		if (refs_str == NULL)
1474 			refs_str_disp = strdup("");
1475 		else {
1476 			if ((asprintf(&refs_str_disp, "(%s)",
1477 			    refs_str)) == -1) {
1478 				error = got_error_from_errno("asprintf");
1479 				free(refs_str);
1480 				goto done;
1481 			}
1482 		}
1483 
1484 		error = got_object_id_str(&id_str1, id1);
1485 		if (error)
1486 			goto done;
1487 
1488 		error = got_object_id_str(&treeid,
1489 		    got_object_commit_get_tree_id(commit));
1490 		if (error)
1491 			goto done;
1492 
1493 		if (gw_trans->action == GW_COMMIT ||
1494 		    gw_trans->action == GW_COMMITDIFF) {
1495 			parent_id =
1496 			    SIMPLEQ_FIRST(
1497 			    got_object_commit_get_parent_ids(commit));
1498 			if (parent_id != NULL) {
1499 				id2 = got_object_id_dup(parent_id->id);
1500 				free (parent_id);
1501 				error = got_object_id_str(&id_str2, id2);
1502 				if (error)
1503 					goto done;
1504 				free(id2);
1505 			} else
1506 				id_str2 = strdup("/dev/null");
1507 		}
1508 
1509 		committer_time =
1510 		    got_object_commit_get_committer_time(commit);
1511 
1512 		if ((asprintf(&commit_parent, "%s", id_str2)) == -1) {
1513 			error = got_error_from_errno("asprintf");
1514 			goto done;
1515 		}
1516 
1517 		if ((asprintf(&commit_tree, "%s", treeid)) == -1) {
1518 			error = got_error_from_errno("asprintf");
1519 			goto done;
1520 		}
1521 
1522 		if ((asprintf(&commit_tree_disp, commit_tree_html,
1523 		    treeid)) == -1) {
1524 			error = got_error_from_errno("asprintf");
1525 			goto done;
1526 		}
1527 
1528 		if ((asprintf(&commit_diff_disp, commit_diff_html, id_str2,
1529 			id_str1)) == -1) {
1530 			error = got_error_from_errno("asprintf");
1531 			goto done;
1532 		}
1533 
1534 		if ((asprintf(&commit_commit, "%s", id_str1)) == -1) {
1535 			error = got_error_from_errno("asprintf");
1536 			goto done;
1537 		}
1538 
1539 		if ((asprintf(&commit_commit_disp, commit_commit_html,
1540 		    commit_commit, refs_str_disp)) == -1) {
1541 			error = got_error_from_errno("asprintf");
1542 			goto done;
1543 		}
1544 
1545 		if ((asprintf(&commit_age_long, "%s",
1546 		    gw_get_time_str(committer_time, TM_LONG))) == -1) {
1547 			error = got_error_from_errno("asprintf");
1548 			goto done;
1549 		}
1550 
1551 		if ((asprintf(&commit_age_long_disp, commit_age_html,
1552 		    commit_age_long)) == -1) {
1553 			error = got_error_from_errno("asprintf");
1554 			goto done;
1555 		}
1556 
1557 		if ((asprintf(&commit_age_diff, "%s",
1558 		    gw_get_time_str(committer_time, TM_DIFF))) == -1) {
1559 			error = got_error_from_errno("asprintf");
1560 			goto done;
1561 		}
1562 
1563 		if ((asprintf(&commit_age_diff_disp, commit_age_html,
1564 		    commit_age_diff)) == -1) {
1565 			error = got_error_from_errno("asprintf");
1566 			goto done;
1567 		}
1568 
1569 		if ((asprintf(&commit_author, "%s",
1570 		    got_object_commit_get_author(commit))) == -1) {
1571 			error = got_error_from_errno("asprintf");
1572 			goto done;
1573 		}
1574 
1575 		if ((asprintf(&commit_author_disp, commit_author_html,
1576 		    gw_html_escape(commit_author))) == -1) {
1577 			error = got_error_from_errno("asprintf");
1578 			goto done;
1579 		}
1580 
1581 		if ((asprintf(&commit_committer, "%s",
1582 		    got_object_commit_get_committer(commit))) == -1) {
1583 			error = got_error_from_errno("asprintf");
1584 			goto done;
1585 		}
1586 
1587 		if ((asprintf(&commit_committer_disp, commit_committer_html,
1588 		    gw_html_escape(commit_committer))) == -1) {
1589 			error = got_error_from_errno("asprintf");
1590 			goto done;
1591 		}
1592 
1593 		if (strcmp(commit_author, commit_committer) == 0) {
1594 			free(commit_committer_disp);
1595 			commit_committer_disp = strdup("");
1596 		}
1597 
1598 		error = got_object_commit_get_logmsg(&commit_log0, commit);
1599 		if (error)
1600 			goto done;
1601 
1602 		commit_log = commit_log0;
1603 		while (*commit_log == '\n')
1604 			commit_log++;
1605 
1606 		switch(log_type) {
1607 		case (LOGBRIEF):
1608 			newline = strchr(commit_log, '\n');
1609 			if (newline)
1610 				*newline = '\0';
1611 
1612 			if ((asprintf(&logbriefs_navs_html, logbriefs_navs,
1613 			    gw_trans->repo_name, id_str1, gw_trans->repo_name,
1614 			    id_str1, gw_trans->repo_name, id_str1,
1615 			    gw_trans->repo_name, id_str1)) == -1) {
1616 				error = got_error_from_errno("asprintf");
1617 				goto done;
1618 			}
1619 
1620 			if ((asprintf(&commit_row, logbriefs_row,
1621 			    commit_age_diff, commit_author, commit_log,
1622 			    logbriefs_navs_html)) == -1) {
1623 				error = got_error_from_errno("asprintf");
1624 				goto done;
1625 			}
1626 
1627 			free(logbriefs_navs_html);
1628 			logbriefs_navs_html = NULL;
1629 			break;
1630 		case (LOGFULL):
1631 			if ((asprintf(&logbriefs_navs_html, logbriefs_navs,
1632 			    gw_trans->repo_name, id_str1, gw_trans->repo_name,
1633 			    id_str1, gw_trans->repo_name, id_str1,
1634 			    gw_trans->repo_name, id_str1)) == -1) {
1635 				error = got_error_from_errno("asprintf");
1636 				goto done;
1637 			}
1638 
1639 			if ((asprintf(&commit_row, logs_row, commit_commit_disp,
1640 			    commit_author_disp, commit_committer_disp,
1641 			    commit_age_long_disp, gw_html_escape(commit_log),
1642 			    logbriefs_navs_html)) == -1) {
1643 				error = got_error_from_errno("asprintf");
1644 				goto done;
1645 			}
1646 
1647 			free(logbriefs_navs_html);
1648 			logbriefs_navs_html = NULL;
1649 			break;
1650 		case (LOGTREE):
1651 			log_tree_html = strdup("log tree here");
1652 
1653 			if ((asprintf(&commit_row, log_tree_row,
1654 			    gw_html_escape(commit_log), log_tree_html)) == -1) {
1655 				error = got_error_from_errno("asprintf");
1656 				goto done;
1657 			}
1658 
1659 			free(log_tree_html);
1660 			break;
1661 		case (LOGCOMMIT):
1662 			if ((asprintf(&commit_log_disp, commit_log_html,
1663 			    gw_html_escape(commit_log))) == -1) {
1664 				error = got_error_from_errno("asprintf");
1665 				goto done;
1666 			}
1667 
1668 			log_commit_html = strdup("commit here");
1669 
1670 			if ((asprintf(&commit_row, log_commit_row,
1671 			    commit_diff_disp, commit_commit_disp,
1672 			    commit_tree_disp, commit_author_disp,
1673 			    commit_committer_disp, commit_age_long_disp,
1674 			    commit_log_disp, log_commit_html)) == -1) {
1675 				error = got_error_from_errno("asprintf");
1676 				goto done;
1677 			}
1678 			free(commit_log_disp);
1679 			free(log_commit_html);
1680 
1681 			break;
1682 		case (LOGDIFF):
1683 			if ((asprintf(&commit_log_disp, commit_log_html,
1684 			    gw_html_escape(commit_log))) == -1) {
1685 				error = got_error_from_errno("asprintf");
1686 				goto done;
1687 			}
1688 
1689 			log_diff_html = strdup("diff here");
1690 
1691 			if ((asprintf(&commit_row, log_diff_row,
1692 			    commit_diff_disp, commit_commit_disp,
1693 			    commit_tree_disp, commit_author_disp,
1694 			    commit_committer_disp, commit_age_long_disp,
1695 			    commit_log_disp, log_diff_html)) == -1) {
1696 				error = got_error_from_errno("asprintf");
1697 				goto done;
1698 			}
1699 			free(commit_log_disp);
1700 			free(log_diff_html);
1701 
1702 			break;
1703 		default:
1704 			return NULL;
1705 		}
1706 
1707 		error = buf_puts(&newsize, diffbuf, commit_row);
1708 
1709 		free(commit_parent);
1710 		free(commit_diff_disp);
1711 		free(commit_tree_disp);
1712 		free(commit_age_diff);
1713 		free(commit_age_diff_disp);
1714 		free(commit_age_long);
1715 		free(commit_age_long_disp);
1716 		free(commit_author);
1717 		free(commit_author_disp);
1718 		free(commit_committer);
1719 		free(commit_committer_disp);
1720 		free(commit_log0);
1721 		free(commit_row);
1722 		free(refs_str_disp);
1723 		free(refs_str);
1724 		refs_str = NULL;
1725 		free(id_str1);
1726 		id_str1 = NULL;
1727 		free(id_str2);
1728 		id_str2 = NULL;
1729 
1730 		if (error || (limit && --limit == 0))
1731 			break;
1732 	}
1733 
1734 	if (error)
1735 		goto done;
1736 
1737 	if (buf_len(diffbuf) > 0) {
1738 		error = buf_putc(diffbuf, '\0');
1739 		logs = strdup(buf_get(diffbuf));
1740 	}
1741 done:
1742 	buf_free(diffbuf);
1743 	if (commit != NULL)
1744 		got_object_commit_close(commit);
1745 	if (search_pattern)
1746 		regfree(&regex);
1747 	if (graph)
1748 		got_commit_graph_close(graph);
1749 	if (repo) {
1750 		error = got_repo_close(repo);
1751 		if (error != NULL)
1752 			return NULL;
1753 	}
1754 	if (error) {
1755 		khttp_puts(gw_trans->gw_req, "Error: ");
1756 		khttp_puts(gw_trans->gw_req, error->msg);
1757 		return NULL;
1758 	} else
1759 		return logs;
1760 }
1761 
1762 static char *
1763 gw_get_repo_tags(struct trans *gw_trans, int limit, int tag_type)
1764 {
1765 	const struct got_error *error = NULL;
1766 	struct got_repository *repo = NULL;
1767 	struct got_reflist_head refs;
1768 	struct got_reflist_entry *re;
1769 	char *tags = NULL, *tag_row = NULL, *tags_navs_disp = NULL,
1770 	     *age = NULL;
1771 	char *newline;
1772 	struct buf *diffbuf = NULL;
1773 	size_t newsize;
1774 
1775 	error = buf_alloc(&diffbuf, 0);
1776 	if (error != NULL)
1777 		return NULL;
1778 	SIMPLEQ_INIT(&refs);
1779 
1780 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
1781 	if (error != NULL)
1782 		goto done;
1783 
1784 	error = got_ref_list(&refs, repo, "refs/tags", cmp_tags, repo);
1785 	if (error)
1786 		goto done;
1787 
1788 	SIMPLEQ_FOREACH(re, &refs, entry) {
1789 		const char *refname;
1790 		char *refstr, *tag_log0, *tag_log, *id_str;
1791 		time_t tagger_time;
1792 		struct got_object_id *id;
1793 		struct got_tag_object *tag;
1794 
1795 		refname = got_ref_get_name(re->ref);
1796 		if (strncmp(refname, "refs/tags/", 10) != 0)
1797 			continue;
1798 		refname += 10;
1799 		refstr = got_ref_to_str(re->ref);
1800 		if (refstr == NULL) {
1801 			error = got_error_from_errno("got_ref_to_str");
1802 			goto done;
1803 		}
1804 
1805 		error = got_ref_resolve(&id, repo, re->ref);
1806 		if (error)
1807 			goto done;
1808 		error = got_object_open_as_tag(&tag, repo, id);
1809 		free(id);
1810 		if (error)
1811 			goto done;
1812 
1813 		tagger_time = got_object_tag_get_tagger_time(tag);
1814 
1815 		error = got_object_id_str(&id_str,
1816 		    got_object_tag_get_object_id(tag));
1817 		if (error)
1818 			goto done;
1819 
1820 		tag_log0 = strdup(got_object_tag_get_message(tag));
1821 
1822 		if (tag_log0 == NULL) {
1823 			error = got_error_from_errno("strdup");
1824 			goto done;
1825 		}
1826 
1827 		tag_log = tag_log0;
1828 		while (*tag_log == '\n')
1829 			tag_log++;
1830 
1831 		switch (tag_type) {
1832 		case TAGBRIEF:
1833 			newline = strchr(tag_log, '\n');
1834 			if (newline)
1835 				*newline = '\0';
1836 
1837 			if ((asprintf(&age, "%s", gw_get_time_str(tagger_time,
1838 			    TM_DIFF))) == -1) {
1839 				error = got_error_from_errno("asprintf");
1840 				goto done;
1841 			}
1842 
1843 			if ((asprintf(&tags_navs_disp, tags_navs,
1844 			    gw_trans->repo_name, id_str, gw_trans->repo_name,
1845 			    id_str, gw_trans->repo_name, id_str,
1846 			    gw_trans->repo_name, id_str)) == -1) {
1847 				error = got_error_from_errno("asprintf");
1848 				goto done;
1849 			}
1850 
1851 			if ((asprintf(&tag_row, tags_row, age, refname, tag_log,
1852 			    tags_navs_disp)) == -1) {
1853 				error = got_error_from_errno("asprintf");
1854 				goto done;
1855 			}
1856 
1857 			free(tags_navs_disp);
1858 			break;
1859 		case TAGFULL:
1860 			break;
1861 		default:
1862 			break;
1863 		}
1864 
1865 		got_object_tag_close(tag);
1866 
1867 		error = buf_puts(&newsize, diffbuf, tag_row);
1868 
1869 		free(id_str);
1870 		free(refstr);
1871 		free(age);
1872 		free(tag_log0);
1873 		free(tag_row);
1874 
1875 		if (error || (limit && --limit == 0))
1876 			break;
1877 	}
1878 
1879 	if (buf_len(diffbuf) > 0) {
1880 		error = buf_putc(diffbuf, '\0');
1881 		tags = strdup(buf_get(diffbuf));
1882 	}
1883 done:
1884 	buf_free(diffbuf);
1885 	got_ref_list_free(&refs);
1886 	if (repo)
1887 		got_repo_close(repo);
1888 	if (error)
1889 		return NULL;
1890 	else
1891 		return tags;
1892 }
1893 
1894 static char *
1895 gw_get_repo_heads(struct trans *gw_trans)
1896 {
1897 	const struct got_error *error = NULL;
1898 	struct got_repository *repo = NULL;
1899 	struct got_reflist_head refs;
1900 	struct got_reflist_entry *re;
1901 	char *heads, *head_row = NULL, *head_navs_disp = NULL, *age = NULL;
1902 	struct buf *diffbuf = NULL;
1903 	size_t newsize;
1904 
1905 	error = buf_alloc(&diffbuf, 0);
1906 	if (error != NULL)
1907 		return NULL;
1908 
1909 	error = got_repo_open(&repo, gw_trans->repo_path, NULL);
1910 	if (error != NULL)
1911 		goto done;
1912 
1913 	SIMPLEQ_INIT(&refs);
1914 	error = got_ref_list(&refs, repo, "refs/heads", got_ref_cmp_by_name,
1915 	    NULL);
1916 	if (error)
1917 		goto done;
1918 
1919 	SIMPLEQ_FOREACH(re, &refs, entry) {
1920 		char *refname;
1921 
1922 		refname = strdup(got_ref_get_name(re->ref));
1923 		if (refname == NULL) {
1924 			error = got_error_from_errno("got_ref_to_str");
1925 			goto done;
1926 		}
1927 
1928 		if (strncmp(refname, "refs/heads/", 11) != 0) {
1929 			free(refname);
1930 			continue;
1931 		}
1932 
1933 		age = gw_get_repo_age(gw_trans, gw_trans->gw_dir->path, refname,
1934 		    TM_DIFF);
1935 
1936 		if ((asprintf(&head_navs_disp, heads_navs, gw_trans->repo_name,
1937 		    refname, gw_trans->repo_name, refname,
1938 		    gw_trans->repo_name, refname, gw_trans->repo_name,
1939 		    refname)) == -1) {
1940 			error = got_error_from_errno("asprintf");
1941 			goto done;
1942 		}
1943 
1944 		if (strncmp(refname, "refs/heads/", 11) == 0)
1945 			refname += 11;
1946 
1947 		if ((asprintf(&head_row, heads_row, age, refname,
1948 		    head_navs_disp)) == -1) {
1949 			error = got_error_from_errno("asprintf");
1950 			goto done;
1951 		}
1952 
1953 		error = buf_puts(&newsize, diffbuf, head_row);
1954 
1955 		free(head_navs_disp);
1956 		free(head_row);
1957 	}
1958 
1959 	if (buf_len(diffbuf) > 0) {
1960 		error = buf_putc(diffbuf, '\0');
1961 		heads = strdup(buf_get(diffbuf));
1962 	}
1963 done:
1964 	buf_free(diffbuf);
1965 	got_ref_list_free(&refs);
1966 	if (repo)
1967 		got_repo_close(repo);
1968 	if (error)
1969 		return NULL;
1970 	else
1971 		return heads;
1972 }
1973 
1974 static char *
1975 gw_get_got_link(struct trans *gw_trans)
1976 {
1977 	char *link;
1978 
1979 	if ((asprintf(&link, got_link, gw_trans->gw_conf->got_logo_url,
1980 	    gw_trans->gw_conf->got_logo)) == -1)
1981 		return NULL;
1982 
1983 	return link;
1984 }
1985 
1986 static char *
1987 gw_get_site_link(struct trans *gw_trans)
1988 {
1989 	char *link, *repo = "", *action = "";
1990 
1991 	if (gw_trans->repo_name != NULL)
1992 		if ((asprintf(&repo, " / <a href='?path=%s&action=summary'>%s" \
1993 		    "</a>", gw_trans->repo_name, gw_trans->repo_name)) == -1)
1994 			return NULL;
1995 
1996 	if (gw_trans->action_name != NULL)
1997 		if ((asprintf(&action, " / %s", gw_trans->action_name)) == -1)
1998 			return NULL;
1999 
2000 	if ((asprintf(&link, site_link, GOTWEB,
2001 	    gw_trans->gw_conf->got_site_link, repo, action)) == -1)
2002 		return NULL;
2003 
2004 	return link;
2005 }
2006 
2007 static char *
2008 gw_html_escape(const char *html)
2009 {
2010 	char *escaped_str = NULL, *buf;
2011 	char c[1];
2012 	size_t sz, i, buff_sz = 2048;
2013 
2014 	if ((buf = calloc(buff_sz, sizeof(char *))) == NULL)
2015 		return NULL;
2016 
2017 	if (html == NULL)
2018 		return NULL;
2019 	else
2020 		if ((sz = strlen(html)) == 0)
2021 			return NULL;
2022 
2023 	/* only work with buff_sz */
2024 	if (buff_sz < sz)
2025 		sz = buff_sz;
2026 
2027 	for (i = 0; i < sz; i++) {
2028 		c[0] = html[i];
2029 		switch (c[0]) {
2030 		case ('>'):
2031 			strcat(buf, "&gt;");
2032 			break;
2033 		case ('&'):
2034 			strcat(buf, "&amp;");
2035 			break;
2036 		case ('<'):
2037 			strcat(buf, "&lt;");
2038 			break;
2039 		case ('"'):
2040 			strcat(buf, "&quot;");
2041 			break;
2042 		case ('\''):
2043 			strcat(buf, "&apos;");
2044 			break;
2045 		case ('\n'):
2046 			strcat(buf, "<br />");
2047 		case ('|'):
2048 			strcat(buf, " ");
2049 		default:
2050 			strcat(buf, &c[0]);
2051 			break;
2052 		}
2053 	}
2054 	asprintf(&escaped_str, "%s", buf);
2055 	free(buf);
2056 	return escaped_str;
2057 }
2058 
2059 int
2060 main()
2061 {
2062 	const struct got_error *error = NULL;
2063 	struct trans *gw_trans;
2064 	struct gw_dir *dir = NULL, *tdir;
2065 	const char *page = "index";
2066 	int gw_malloc = 1;
2067 
2068 	if ((gw_trans = malloc(sizeof(struct trans))) == NULL)
2069 		errx(1, "malloc");
2070 
2071 	if ((gw_trans->gw_req = malloc(sizeof(struct kreq))) == NULL)
2072 		errx(1, "malloc");
2073 
2074 	if ((gw_trans->gw_html_req = malloc(sizeof(struct khtmlreq))) == NULL)
2075 		errx(1, "malloc");
2076 
2077 	if ((gw_trans->gw_tmpl = malloc(sizeof(struct ktemplate))) == NULL)
2078 		errx(1, "malloc");
2079 
2080 	if (KCGI_OK != khttp_parse(gw_trans->gw_req, gw_keys, KEY__MAX,
2081 	    &page, 1, 0))
2082 		errx(1, "khttp_parse");
2083 
2084 	if ((gw_trans->gw_conf =
2085 	    malloc(sizeof(struct gotweb_conf))) == NULL) {
2086 		gw_malloc = 0;
2087 		error = got_error_from_errno("malloc");
2088 		goto err;
2089 	}
2090 
2091 	if (pledge("stdio rpath proc exec sendfd unveil", NULL) == -1) {
2092 		error = got_error_from_errno("pledge");
2093 		goto err;
2094 	}
2095 
2096 	TAILQ_INIT(&gw_trans->gw_dirs);
2097 
2098 	gw_trans->page = 0;
2099 	gw_trans->repos_total = 0;
2100 	gw_trans->repo_path = NULL;
2101 	gw_trans->commit = NULL;
2102 	gw_trans->headref = strdup(GOT_REF_HEAD);
2103 	gw_trans->mime = KMIME_TEXT_HTML;
2104 	gw_trans->gw_tmpl->key = templs;
2105 	gw_trans->gw_tmpl->keysz = TEMPL__MAX;
2106 	gw_trans->gw_tmpl->arg = gw_trans;
2107 	gw_trans->gw_tmpl->cb = gw_template;
2108 	error = parse_conf(GOTWEB_CONF, gw_trans->gw_conf);
2109 
2110 err:
2111 	if (error) {
2112 		gw_trans->mime = KMIME_TEXT_PLAIN;
2113 		gw_trans->action = GW_ERR;
2114 		gw_display_index(gw_trans, error);
2115 		goto done;
2116 	}
2117 
2118 	error = gw_parse_querystring(gw_trans);
2119 	if (error)
2120 		goto err;
2121 
2122 	gw_display_index(gw_trans, error);
2123 
2124 done:
2125 	if (gw_malloc) {
2126 		free(gw_trans->gw_conf->got_repos_path);
2127 		free(gw_trans->gw_conf->got_www_path);
2128 		free(gw_trans->gw_conf->got_site_name);
2129 		free(gw_trans->gw_conf->got_site_owner);
2130 		free(gw_trans->gw_conf->got_site_link);
2131 		free(gw_trans->gw_conf->got_logo);
2132 		free(gw_trans->gw_conf->got_logo_url);
2133 		free(gw_trans->gw_conf);
2134 		free(gw_trans->commit);
2135 		free(gw_trans->repo_path);
2136 		free(gw_trans->repo_name);
2137 		free(gw_trans->repo_file);
2138 		free(gw_trans->action_name);
2139 		free(gw_trans->headref);
2140 
2141 		TAILQ_FOREACH_SAFE(dir, &gw_trans->gw_dirs, entry, tdir) {
2142 			free(dir->name);
2143 			free(dir->description);
2144 			free(dir->age);
2145 			free(dir->url);
2146 			free(dir->path);
2147 			free(dir);
2148 		}
2149 
2150 	}
2151 
2152 	khttp_free(gw_trans->gw_req);
2153 	return EXIT_SUCCESS;
2154 }