1 /*
2  * Copyright (c) 2016, 2019, 2020-2022 Tracey Emery <tracey@traceyemery.net>
3  * Copyright (c) 2015 Mike Larkin <mlarkin@openbsd.org>
4  * Copyright (c) 2014 Reyk Floeter <reyk@openbsd.org>
5  * Copyright (c) 2013 David Gwynne <dlg@openbsd.org>
6  * Copyright (c) 2013 Florian Obser <florian@openbsd.org>
7  *
8  * Permission to use, copy, modify, and distribute this software for any
9  * purpose with or without fee is hereby granted, provided that the above
10  * copyright notice and this permission notice appear in all copies.
11  *
12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19  */
20 
21 #include <net/if.h>
22 #include <netinet/in.h>
23 #include <sys/queue.h>
24 #include <sys/stat.h>
25 #include <sys/types.h>
26 
27 #include <ctype.h>
28 #include <dirent.h>
29 #include <errno.h>
30 #include <event.h>
31 #include <fcntl.h>
32 #include <imsg.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <string.h>
36 #include <unistd.h>
37 
38 #include "got_error.h"
39 #include "got_object.h"
40 #include "got_reference.h"
41 #include "got_repository.h"
42 #include "got_path.h"
43 #include "got_cancel.h"
44 #include "got_worktree.h"
45 #include "got_diff.h"
46 #include "got_commit_graph.h"
47 #include "got_blame.h"
48 #include "got_privsep.h"
49 
50 #include "proc.h"
51 #include "gotwebd.h"
52 
53 static const struct querystring_keys querystring_keys[] = {
54 	{ "action",		ACTION },
55 	{ "commit",		COMMIT },
56 	{ "file",		RFILE },
57 	{ "folder",		FOLDER },
58 	{ "headref",		HEADREF },
59 	{ "index_page",		INDEX_PAGE },
60 	{ "path",		PATH },
61 	{ "page",		PAGE },
62 };
63 
64 static const struct action_keys action_keys[] = {
65 	{ "blame",	BLAME },
66 	{ "blob",	BLOB },
67 	{ "briefs",	BRIEFS },
68 	{ "commits",	COMMITS },
69 	{ "diff",	DIFF },
70 	{ "error",	ERR },
71 	{ "index",	INDEX },
72 	{ "summary",	SUMMARY },
73 	{ "tag",	TAG },
74 	{ "tags",	TAGS },
75 	{ "tree",	TREE },
76 };
77 
78 static const struct got_error *gotweb_init_querystring(struct querystring **);
79 static const struct got_error *gotweb_parse_querystring(struct querystring **,
80     char *);
81 static const struct got_error *gotweb_assign_querystring(struct querystring **,
82     char *, char *);
83 static const struct got_error *gotweb_render_index(struct request *);
84 static const struct got_error *gotweb_init_repo_dir(struct repo_dir **,
85     const char *);
86 static const struct got_error *gotweb_load_got_path(struct request *c,
87     struct repo_dir *);
88 static const struct got_error *gotweb_get_repo_description(char **,
89     struct server *, const char *, int);
90 static const struct got_error *gotweb_get_clone_url(char **, struct server *,
91     const char *, int);
92 static const struct got_error *gotweb_render_blame(struct request *);
93 static const struct got_error *gotweb_render_commits(struct request *);
94 static const struct got_error *gotweb_render_diff(struct request *);
95 static const struct got_error *gotweb_render_summary(struct request *);
96 static const struct got_error *gotweb_render_tag(struct request *);
97 static const struct got_error *gotweb_render_tags(struct request *);
98 static const struct got_error *gotweb_render_tree(struct request *);
99 static const struct got_error *gotweb_render_branches(struct request *);
100 
101 static void gotweb_free_querystring(struct querystring *);
102 static void gotweb_free_repo_dir(struct repo_dir *);
103 
104 struct server *gotweb_get_server(uint8_t *, uint8_t *);
105 
106 void
107 gotweb_process_request(struct request *c)
108 {
109 	const struct got_error *error = NULL, *error2 = NULL;
110 	struct server *srv = NULL;
111 	struct querystring *qs = NULL;
112 	struct repo_dir *repo_dir = NULL;
113 	uint8_t err[] = "gotwebd experienced an error: ";
114 	int r, html = 0;
115 
116 	/* init the transport */
117 	error = gotweb_init_transport(&c->t);
118 	if (error) {
119 		log_warnx("%s: %s", __func__, error->msg);
120 		return;
121 	}
122 	/* don't process any further if client disconnected */
123 	if (c->sock->client_status == CLIENT_DISCONNECT)
124 		return;
125 	/* get the gotwebd server */
126 	srv = gotweb_get_server(c->server_name, c->http_host);
127 	if (srv == NULL) {
128 		log_warnx("%s: error server is NULL", __func__);
129 		goto err;
130 	}
131 	c->srv = srv;
132 	/* parse our querystring */
133 	error = gotweb_init_querystring(&qs);
134 	if (error) {
135 		log_warnx("%s: %s", __func__, error->msg);
136 		goto err;
137 	}
138 	c->t->qs = qs;
139 	error = gotweb_parse_querystring(&qs, c->querystring);
140 	if (error) {
141 		log_warnx("%s: %s", __func__, error->msg);
142 		goto err;
143 	}
144 
145 	/*
146 	 * certain actions require a commit id in the querystring. this stops
147 	 * bad actors from exploiting this by manually manipulating the
148 	 * querystring.
149 	 */
150 
151 	if (qs->commit == NULL && (qs->action == BLAME || qs->action == BLOB ||
152 	    qs->action == DIFF)) {
153 		error2 = got_error(GOT_ERR_QUERYSTRING);
154 		goto render;
155 	}
156 
157 	if (qs->action != INDEX) {
158 		error = gotweb_init_repo_dir(&repo_dir, qs->path);
159 		if (error)
160 			goto done;
161 		error = gotweb_load_got_path(c, repo_dir);
162 		c->t->repo_dir = repo_dir;
163 		if (error && error->code != GOT_ERR_LONELY_PACKIDX)
164 			goto err;
165 	}
166 
167 	/* render top of page */
168 	if (qs != NULL && qs->action == BLOB) {
169 		error = got_get_repo_commits(c, 1);
170 		if (error)
171 			goto done;
172 		error = got_output_file_blob(c);
173 		if (error) {
174 			log_warnx("%s: %s", __func__, error->msg);
175 			goto err;
176 		}
177 		goto done;
178 	}
179 
180 render:
181 	error = gotweb_render_content_type(c, "text/html");
182 	if (error) {
183 		log_warnx("%s: %s", __func__, error->msg);
184 		goto err;
185 	}
186 	html = 1;
187 
188 	if (gotweb_render_header(c->tp) == -1)
189 		goto err;
190 
191 	if (error2) {
192 		error = error2;
193 		goto err;
194 	}
195 
196 	switch(qs->action) {
197 	case BLAME:
198 		error = gotweb_render_blame(c);
199 		if (error) {
200 			log_warnx("%s: %s", __func__, error->msg);
201 			goto err;
202 		}
203 		break;
204 	case BRIEFS:
205 		if (gotweb_render_briefs(c->tp) == -1)
206 			goto err;
207 		break;
208 	case COMMITS:
209 		error = gotweb_render_commits(c);
210 		if (error) {
211 			log_warnx("%s: %s", __func__, error->msg);
212 			goto err;
213 		}
214 		break;
215 	case DIFF:
216 		error = gotweb_render_diff(c);
217 		if (error) {
218 			log_warnx("%s: %s", __func__, error->msg);
219 			goto err;
220 		}
221 		break;
222 	case INDEX:
223 		error = gotweb_render_index(c);
224 		if (error) {
225 			log_warnx("%s: %s", __func__, error->msg);
226 			goto err;
227 		}
228 		break;
229 	case SUMMARY:
230 		error = gotweb_render_summary(c);
231 		if (error) {
232 			log_warnx("%s: %s", __func__, error->msg);
233 			goto err;
234 		}
235 		break;
236 	case TAG:
237 		error = gotweb_render_tag(c);
238 		if (error) {
239 			log_warnx("%s: %s", __func__, error->msg);
240 			goto err;
241 		}
242 		break;
243 	case TAGS:
244 		error = gotweb_render_tags(c);
245 		if (error) {
246 			log_warnx("%s: %s", __func__, error->msg);
247 			goto err;
248 		}
249 		break;
250 	case TREE:
251 		error = gotweb_render_tree(c);
252 		if (error) {
253 			log_warnx("%s: %s", __func__, error->msg);
254 			goto err;
255 		}
256 		break;
257 	case ERR:
258 	default:
259 		r = fcgi_printf(c, "<div id='err_content'>%s</div>\n",
260 		    "Erorr: Bad Querystring");
261 		if (r == -1)
262 			goto err;
263 		break;
264 	}
265 
266 	goto done;
267 err:
268 	if (html && fcgi_printf(c, "<div id='err_content'>") == -1)
269 		return;
270 	if (fcgi_printf(c, "\n%s", err) == -1)
271 		return;
272 	if (error) {
273 		if (fcgi_printf(c, "%s", error->msg) == -1)
274 			return;
275 	} else {
276 		if (fcgi_printf(c, "see daemon logs for details") == -1)
277 			return;
278 	}
279 	if (html && fcgi_printf(c, "</div>\n") == -1)
280 		return;
281 done:
282 	if (html && srv != NULL)
283 		gotweb_render_footer(c->tp);
284 }
285 
286 struct server *
287 gotweb_get_server(uint8_t *server_name, uint8_t *subdomain)
288 {
289 	struct server *srv = NULL;
290 
291 	/* check against the server name first */
292 	if (strlen(server_name) > 0)
293 		TAILQ_FOREACH(srv, &gotwebd_env->servers, entry)
294 			if (strcmp(srv->name, server_name) == 0)
295 				goto done;
296 
297 	/* check against subdomain second */
298 	if (strlen(subdomain) > 0)
299 		TAILQ_FOREACH(srv, &gotwebd_env->servers, entry)
300 			if (strcmp(srv->name, subdomain) == 0)
301 				goto done;
302 
303 	/* if those fail, send first server */
304 	TAILQ_FOREACH(srv, &gotwebd_env->servers, entry)
305 		if (srv != NULL)
306 			break;
307 done:
308 	return srv;
309 };
310 
311 const struct got_error *
312 gotweb_init_transport(struct transport **t)
313 {
314 	const struct got_error *error = NULL;
315 
316 	*t = calloc(1, sizeof(**t));
317 	if (*t == NULL)
318 		return got_error_from_errno2("%s: calloc", __func__);
319 
320 	TAILQ_INIT(&(*t)->repo_commits);
321 	TAILQ_INIT(&(*t)->repo_tags);
322 
323 	(*t)->repo = NULL;
324 	(*t)->repo_dir = NULL;
325 	(*t)->qs = NULL;
326 	(*t)->next_id = NULL;
327 	(*t)->prev_id = NULL;
328 	(*t)->next_disp = 0;
329 	(*t)->prev_disp = 0;
330 
331 	return error;
332 }
333 
334 static const struct got_error *
335 gotweb_init_querystring(struct querystring **qs)
336 {
337 	const struct got_error *error = NULL;
338 
339 	*qs = calloc(1, sizeof(**qs));
340 	if (*qs == NULL)
341 		return got_error_from_errno2("%s: calloc", __func__);
342 
343 	(*qs)->headref = strdup("HEAD");
344 	if ((*qs)->headref == NULL) {
345 		free(*qs);
346 		*qs = NULL;
347 		return got_error_from_errno2("%s: strdup", __func__);
348 	}
349 
350 	(*qs)->action = INDEX;
351 	(*qs)->commit = NULL;
352 	(*qs)->file = NULL;
353 	(*qs)->folder = NULL;
354 	(*qs)->index_page = 0;
355 	(*qs)->path = NULL;
356 
357 	return error;
358 }
359 
360 static const struct got_error *
361 gotweb_parse_querystring(struct querystring **qs, char *qst)
362 {
363 	const struct got_error *error = NULL;
364 	char *tok1 = NULL, *tok1_pair = NULL, *tok1_end = NULL;
365 	char *tok2 = NULL, *tok2_pair = NULL, *tok2_end = NULL;
366 
367 	if (qst == NULL)
368 		return error;
369 
370 	tok1 = strdup(qst);
371 	if (tok1 == NULL)
372 		return got_error_from_errno2("%s: strdup", __func__);
373 
374 	tok1_pair = tok1;
375 	tok1_end = tok1;
376 
377 	while (tok1_pair != NULL) {
378 		strsep(&tok1_end, "&");
379 
380 		tok2 = strdup(tok1_pair);
381 		if (tok2 == NULL) {
382 			free(tok1);
383 			return got_error_from_errno2("%s: strdup", __func__);
384 		}
385 
386 		tok2_pair = tok2;
387 		tok2_end = tok2;
388 
389 		while (tok2_pair != NULL) {
390 			strsep(&tok2_end, "=");
391 			if (tok2_end) {
392 				error = gotweb_assign_querystring(qs, tok2_pair,
393 				    tok2_end);
394 				if (error)
395 					goto err;
396 			}
397 			tok2_pair = tok2_end;
398 		}
399 		free(tok2);
400 		tok1_pair = tok1_end;
401 	}
402 	free(tok1);
403 	return error;
404 err:
405 	free(tok2);
406 	free(tok1);
407 	return error;
408 }
409 
410 /*
411  * Adapted from usr.sbin/httpd/httpd.c url_decode.
412  */
413 static const struct got_error *
414 gotweb_urldecode(char *url)
415 {
416 	char		*p, *q;
417 	char		 hex[3];
418 	unsigned long	 x;
419 
420 	hex[2] = '\0';
421 	p = q = url;
422 
423 	while (*p != '\0') {
424 		switch (*p) {
425 		case '%':
426 			/* Encoding character is followed by two hex chars */
427 			if (!isxdigit((unsigned char)p[1]) ||
428 			    !isxdigit((unsigned char)p[2]) ||
429 			    (p[1] == '0' && p[2] == '0'))
430 				return got_error(GOT_ERR_BAD_QUERYSTRING);
431 
432 			hex[0] = p[1];
433 			hex[1] = p[2];
434 
435 			/*
436 			 * We don't have to validate "hex" because it is
437 			 * guaranteed to include two hex chars followed by nul.
438 			 */
439 			x = strtoul(hex, NULL, 16);
440 			*q = (char)x;
441 			p += 2;
442 			break;
443 		default:
444 			*q = *p;
445 			break;
446 		}
447 		p++;
448 		q++;
449 	}
450 	*q = '\0';
451 
452 	return NULL;
453 }
454 
455 static const struct got_error *
456 gotweb_assign_querystring(struct querystring **qs, char *key, char *value)
457 {
458 	const struct got_error *error = NULL;
459 	const char *errstr;
460 	int a_cnt, el_cnt;
461 
462 	error = gotweb_urldecode(value);
463 	if (error)
464 		return error;
465 
466 	for (el_cnt = 0; el_cnt < QSELEM__MAX; el_cnt++) {
467 		if (strcmp(key, querystring_keys[el_cnt].name) != 0)
468 			continue;
469 
470 		switch (querystring_keys[el_cnt].element) {
471 		case ACTION:
472 			for (a_cnt = 0; a_cnt < ACTIONS__MAX; a_cnt++) {
473 				if (strcmp(value, action_keys[a_cnt].name) != 0)
474 					continue;
475 				else if (strcmp(value,
476 				    action_keys[a_cnt].name) == 0){
477 					(*qs)->action =
478 					    action_keys[a_cnt].action;
479 					goto qa_found;
480 				}
481 			}
482 			(*qs)->action = ERR;
483 qa_found:
484 			break;
485 		case COMMIT:
486 			(*qs)->commit = strdup(value);
487 			if ((*qs)->commit == NULL) {
488 				error = got_error_from_errno2("%s: strdup",
489 				    __func__);
490 				goto done;
491 			}
492 			break;
493 		case RFILE:
494 			(*qs)->file = strdup(value);
495 			if ((*qs)->file == NULL) {
496 				error = got_error_from_errno2("%s: strdup",
497 				    __func__);
498 				goto done;
499 			}
500 			break;
501 		case FOLDER:
502 			(*qs)->folder = strdup(value);
503 			if ((*qs)->folder == NULL) {
504 				error = got_error_from_errno2("%s: strdup",
505 				    __func__);
506 				goto done;
507 			}
508 			break;
509 		case HEADREF:
510 			free((*qs)->headref);
511 			(*qs)->headref = strdup(value);
512 			if ((*qs)->headref == NULL) {
513 				error = got_error_from_errno2("%s: strdup",
514 				    __func__);
515 				goto done;
516 			}
517 			break;
518 		case INDEX_PAGE:
519 			if (strlen(value) == 0)
520 				break;
521 			(*qs)->index_page = strtonum(value, INT64_MIN,
522 			    INT64_MAX, &errstr);
523 			if (errstr) {
524 				error = got_error_from_errno3("%s: strtonum %s",
525 				    __func__, errstr);
526 				goto done;
527 			}
528 			if ((*qs)->index_page < 0)
529 				(*qs)->index_page = 0;
530 			break;
531 		case PATH:
532 			(*qs)->path = strdup(value);
533 			if ((*qs)->path == NULL) {
534 				error = got_error_from_errno2("%s: strdup",
535 				    __func__);
536 				goto done;
537 			}
538 			break;
539 		case PAGE:
540 			if (strlen(value) == 0)
541 				break;
542 			(*qs)->page = strtonum(value, INT64_MIN,
543 			    INT64_MAX, &errstr);
544 			if (errstr) {
545 				error = got_error_from_errno3("%s: strtonum %s",
546 				    __func__, errstr);
547 				goto done;
548 			}
549 			if ((*qs)->page < 0)
550 				(*qs)->page = 0;
551 			break;
552 		default:
553 			break;
554 		}
555 	}
556 done:
557 	return error;
558 }
559 
560 void
561 gotweb_free_repo_tag(struct repo_tag *rt)
562 {
563 	if (rt != NULL) {
564 		free(rt->commit_id);
565 		free(rt->tag_name);
566 		free(rt->tag_commit);
567 		free(rt->commit_msg);
568 		free(rt->tagger);
569 	}
570 	free(rt);
571 }
572 
573 void
574 gotweb_free_repo_commit(struct repo_commit *rc)
575 {
576 	if (rc != NULL) {
577 		free(rc->path);
578 		free(rc->refs_str);
579 		free(rc->commit_id);
580 		free(rc->parent_id);
581 		free(rc->tree_id);
582 		free(rc->author);
583 		free(rc->committer);
584 		free(rc->commit_msg);
585 	}
586 	free(rc);
587 }
588 
589 static void
590 gotweb_free_querystring(struct querystring *qs)
591 {
592 	if (qs != NULL) {
593 		free(qs->commit);
594 		free(qs->file);
595 		free(qs->folder);
596 		free(qs->headref);
597 		free(qs->path);
598 	}
599 	free(qs);
600 }
601 
602 static void
603 gotweb_free_repo_dir(struct repo_dir *repo_dir)
604 {
605 	if (repo_dir != NULL) {
606 		free(repo_dir->name);
607 		free(repo_dir->owner);
608 		free(repo_dir->description);
609 		free(repo_dir->url);
610 		free(repo_dir->age);
611 		free(repo_dir->path);
612 	}
613 	free(repo_dir);
614 }
615 
616 void
617 gotweb_free_transport(struct transport *t)
618 {
619 	struct repo_commit *rc = NULL, *trc = NULL;
620 	struct repo_tag *rt = NULL, *trt = NULL;
621 
622 	TAILQ_FOREACH_SAFE(rc, &t->repo_commits, entry, trc) {
623 		TAILQ_REMOVE(&t->repo_commits, rc, entry);
624 		gotweb_free_repo_commit(rc);
625 	}
626 	TAILQ_FOREACH_SAFE(rt, &t->repo_tags, entry, trt) {
627 		TAILQ_REMOVE(&t->repo_tags, rt, entry);
628 		gotweb_free_repo_tag(rt);
629 	}
630 	gotweb_free_repo_dir(t->repo_dir);
631 	gotweb_free_querystring(t->qs);
632 	free(t->next_id);
633 	free(t->prev_id);
634 	free(t);
635 }
636 
637 const struct got_error *
638 gotweb_render_content_type(struct request *c, const uint8_t *type)
639 {
640 	const char *csp = "default-src 'self'; script-src 'none'; "
641 		"object-src 'none';";
642 
643 	fcgi_printf(c,
644 	    "Content-Security-Policy: %s\r\n"
645 	    "Content-Type: %s\r\n\r\n",
646 	    csp, type);
647 	return NULL;
648 }
649 
650 const struct got_error *
651 gotweb_render_content_type_file(struct request *c, const uint8_t *type,
652     char *file)
653 {
654 	fcgi_printf(c, "Content-type: %s\r\n"
655 	    "Content-disposition: attachment; filename=%s\r\n\r\n",
656 	    type, file);
657 	return NULL;
658 }
659 
660 void
661 gotweb_get_navs(struct request *c, struct gotweb_url *prev, int *have_prev,
662     struct gotweb_url *next, int *have_next)
663 {
664 	struct transport *t = c->t;
665 	struct querystring *qs = t->qs;
666 	struct server *srv = c->srv;
667 
668 	*have_prev = *have_next = 0;
669 
670 	switch(qs->action) {
671 	case INDEX:
672 		if (qs->index_page > 0) {
673 			*have_prev = 1;
674 			*prev = (struct gotweb_url){
675 				.action = -1,
676 				.index_page = qs->index_page - 1,
677 				.page = -1,
678 			};
679 		}
680 		if (t->next_disp == srv->max_repos_display &&
681 		    t->repos_total != (qs->index_page + 1) *
682 		    srv->max_repos_display) {
683 			*have_next = 1;
684 			*next = (struct gotweb_url){
685 				.action = -1,
686 				.index_page = qs->index_page + 1,
687 				.page = -1,
688 			};
689 		}
690 		break;
691 	case BRIEFS:
692 		if (t->prev_id && qs->commit != NULL &&
693 		    strcmp(qs->commit, t->prev_id) != 0) {
694 			*have_prev = 1;
695 			*prev = (struct gotweb_url){
696 				.action = BRIEFS,
697 				.index_page = -1,
698 				.page = qs->page - 1,
699 				.path = qs->path,
700 				.commit = t->prev_id,
701 				.headref = qs->headref,
702 			};
703 		}
704 		if (t->next_id) {
705 			*have_next = 1;
706 			*next = (struct gotweb_url){
707 				.action = BRIEFS,
708 				.index_page = -1,
709 				.page = qs->page + 1,
710 				.path = qs->path,
711 				.commit = t->next_id,
712 				.headref = qs->headref,
713 			};
714 		}
715 		break;
716 	case COMMITS:
717 		if (t->prev_id && qs->commit != NULL &&
718 		    strcmp(qs->commit, t->prev_id) != 0) {
719 			*have_prev = 1;
720 			*prev = (struct gotweb_url){
721 				.action = COMMITS,
722 				.index_page = -1,
723 				.page = qs->page - 1,
724 				.path = qs->path,
725 				.commit = t->prev_id,
726 				.headref = qs->headref,
727 				.folder = qs->folder,
728 				.file = qs->file,
729 			};
730 		}
731 		if (t->next_id) {
732 			*have_next = 1;
733 			*next = (struct gotweb_url){
734 				.action = COMMITS,
735 				.index_page = -1,
736 				.page = qs->page + 1,
737 				.path = qs->path,
738 				.commit = t->next_id,
739 				.headref = qs->headref,
740 				.folder = qs->folder,
741 				.file = qs->file,
742 			};
743 		}
744 		break;
745 	case TAGS:
746 		if (t->prev_id && qs->commit != NULL &&
747 		    strcmp(qs->commit, t->prev_id) != 0) {
748 			*have_prev = 1;
749 			*prev = (struct gotweb_url){
750 				.action = TAGS,
751 				.index_page = -1,
752 				.page = qs->page - 1,
753 				.path = qs->path,
754 				.commit = t->prev_id,
755 				.headref = qs->headref,
756 			};
757 		}
758 		if (t->next_id) {
759 			*have_next = 1;
760 			*next = (struct gotweb_url){
761 				.action = TAGS,
762 				.index_page = -1,
763 				.page = qs->page + 1,
764 				.path = qs->path,
765 				.commit = t->next_id,
766 				.headref = qs->headref,
767 			};
768 		}
769 		break;
770 	}
771 }
772 
773 static const struct got_error *
774 gotweb_render_index(struct request *c)
775 {
776 	const struct got_error *error = NULL;
777 	struct server *srv = c->srv;
778 	struct transport *t = c->t;
779 	struct querystring *qs = t->qs;
780 	struct repo_dir *repo_dir = NULL;
781 	DIR *d;
782 	struct dirent **sd_dent = NULL;
783 	unsigned int d_cnt, d_i, d_disp = 0;
784 	unsigned int d_skipped = 0;
785 	int type;
786 
787 	d = opendir(srv->repos_path);
788 	if (d == NULL) {
789 		error = got_error_from_errno2("opendir", srv->repos_path);
790 		return error;
791 	}
792 
793 	d_cnt = scandir(srv->repos_path, &sd_dent, NULL, alphasort);
794 	if (d_cnt == -1) {
795 		sd_dent = NULL;
796 		error = got_error_from_errno2("scandir", srv->repos_path);
797 		goto done;
798 	}
799 
800 	if (gotweb_render_repo_table_hdr(c->tp) == -1)
801 		goto done;
802 
803 	for (d_i = 0; d_i < d_cnt; d_i++) {
804 		if (srv->max_repos > 0 && t->prev_disp == srv->max_repos)
805 			break;
806 
807 		if (strcmp(sd_dent[d_i]->d_name, ".") == 0 ||
808 		    strcmp(sd_dent[d_i]->d_name, "..") == 0) {
809 			d_skipped++;
810 			continue;
811 		}
812 
813 		error = got_path_dirent_type(&type, srv->repos_path,
814 		    sd_dent[d_i]);
815 		if (error)
816 			goto done;
817 		if (type != DT_DIR) {
818 			d_skipped++;
819 			continue;
820 		}
821 
822 		if (qs->index_page > 0 && (qs->index_page *
823 		    srv->max_repos_display) > t->prev_disp) {
824 			t->prev_disp++;
825 			continue;
826 		}
827 
828 		error = gotweb_init_repo_dir(&repo_dir, sd_dent[d_i]->d_name);
829 		if (error)
830 			goto done;
831 
832 		error = gotweb_load_got_path(c, repo_dir);
833 		if (error && error->code == GOT_ERR_NOT_GIT_REPO) {
834 			error = NULL;
835 			gotweb_free_repo_dir(repo_dir);
836 			repo_dir = NULL;
837 			d_skipped++;
838 			continue;
839 		}
840 		if (error && error->code != GOT_ERR_LONELY_PACKIDX)
841 			goto done;
842 
843 		d_disp++;
844 		t->prev_disp++;
845 
846 		if (gotweb_render_repo_fragment(c->tp, repo_dir) == -1)
847 			goto done;
848 
849 		gotweb_free_repo_dir(repo_dir);
850 		repo_dir = NULL;
851 		t->next_disp++;
852 		if (d_disp == srv->max_repos_display)
853 			break;
854 	}
855 	t->repos_total = d_cnt - d_skipped;
856 
857 	if (srv->max_repos_display == 0)
858 		goto done;
859 	if (srv->max_repos > 0 && srv->max_repos < srv->max_repos_display)
860 		goto done;
861 	if (t->repos_total <= srv->max_repos ||
862 	    t->repos_total <= srv->max_repos_display)
863 		goto done;
864 
865 	if (gotweb_render_navs(c->tp) == -1)
866 		goto done;
867 done:
868 	if (sd_dent) {
869 		for (d_i = 0; d_i < d_cnt; d_i++)
870 			free(sd_dent[d_i]);
871 		free(sd_dent);
872 	}
873 	if (d != NULL && closedir(d) == EOF && error == NULL)
874 		error = got_error_from_errno("closedir");
875 	return error;
876 }
877 
878 static const struct got_error *
879 gotweb_render_blame(struct request *c)
880 {
881 	const struct got_error *error = NULL;
882 	struct transport *t = c->t;
883 	struct repo_commit *rc = NULL;
884 	char *age = NULL, *msg = NULL;
885 	int r;
886 
887 	error = got_get_repo_commits(c, 1);
888 	if (error)
889 		return error;
890 
891 	rc = TAILQ_FIRST(&t->repo_commits);
892 
893 	error = gotweb_get_time_str(&age, rc->committer_time, TM_LONG);
894 	if (error)
895 		goto done;
896 	error = gotweb_escape_html(&msg, rc->commit_msg);
897 	if (error)
898 		goto done;
899 
900 	r = fcgi_printf(c, "<div id='blame_title_wrapper'>\n"
901 	    "<div id='blame_title'>Blame</div>\n"
902 	    "</div>\n"		/* #blame_title_wrapper */
903 	    "<div id='blame_content'>\n"
904 	    "<div id='blame_header_wrapper'>\n"
905 	    "<div id='blame_header'>\n"
906 	    "<div class='header_age_title'>Date:</div>\n"
907 	    "<div class='header_age'>%s</div>\n"
908 	    "<div id='header_commit_msg_title'>Message:</div>\n"
909 	    "<div id='header_commit_msg'>%s</div>\n"
910 	    "</div>\n"		/* #blame_header */
911 	    "</div>\n"		/* #blame_header_wrapper */
912 	    "<div class='dotted_line'></div>\n"
913 	    "<div id='blame'>\n",
914 	    age,
915 	    msg);
916 	if (r == -1)
917 		goto done;
918 
919 	error = got_output_file_blame(c);
920 	if (error)
921 		goto done;
922 
923 	fcgi_printf(c, "</div>\n"	/* #blame */
924 	    "</div>\n");		/* #blame_content */
925 done:
926 	free(age);
927 	free(msg);
928 	return error;
929 }
930 
931 static const struct got_error *
932 gotweb_render_commits(struct request *c)
933 {
934 	const struct got_error *error = NULL;
935 	struct repo_commit *rc = NULL;
936 	struct server *srv = c->srv;
937 	struct transport *t = c->t;
938 	struct repo_dir *repo_dir = t->repo_dir;
939 	char *age = NULL, *author = NULL, *msg = NULL;
940 	int r;
941 
942 	r = fcgi_printf(c, "<div class='commits_title_wrapper'>\n"
943 	    "<div class='commits_title'>Commits</div>\n"
944 	    "</div>\n"		/* .commits_title_wrapper */
945 	    "<div class='commits_content'>\n");
946 	if (r == -1)
947 		goto done;
948 
949 	error = got_get_repo_commits(c, srv->max_commits_display);
950 	if (error)
951 		goto done;
952 
953 	TAILQ_FOREACH(rc, &t->repo_commits, entry) {
954 		error = gotweb_get_time_str(&age, rc->committer_time, TM_LONG);
955 		if (error)
956 			goto done;
957 		error = gotweb_escape_html(&author, rc->author);
958 		if (error)
959 			goto done;
960 		error = gotweb_escape_html(&msg, rc->commit_msg);
961 		if (error)
962 			goto done;
963 
964 		r = fcgi_printf(c, "<div class='commits_header_wrapper'>\n"
965 		    "<div class='commits_header'>\n"
966 		    "<div class='header_commit_title'>Commit:</div>\n"
967 		    "<div class='header_commit'>%s</div>\n"
968 		    "<div class='header_author_title'>Author:</div>\n"
969 		    "<div class='header_author'>%s</div>\n"
970 		    "<div class='header_age_title'>Date:</div>\n"
971 		    "<div class='header_age'>%s</div>\n"
972 		    "</div>\n"	/* .commits_header */
973 		    "</div>\n"	/* .commits_header_wrapper */
974 		    "<div class='dotted_line'></div>\n"
975 		    "<div class='commit'>\n%s</div>\n",
976 		    rc->commit_id,
977 		    author,
978 		    age,
979 		    msg);
980 		if (r == -1)
981 			goto done;
982 
983 		if (fcgi_printf(c, "<div class='navs_wrapper'>\n"
984 		    "<div class='navs'>") == -1)
985 			goto done;
986 
987 		r = gotweb_link(c, &(struct gotweb_url){
988 			.action = DIFF,
989 			.index_page = -1,
990 			.page = -1,
991 			.path = repo_dir->name,
992 			.commit = rc->commit_id,
993 		    }, "diff");
994 		if (r == -1)
995 			goto done;
996 
997 		if (fcgi_printf(c, " | ") == -1)
998 			goto done;
999 
1000 		r = gotweb_link(c, &(struct gotweb_url){
1001 			.action = TREE,
1002 			.index_page = -1,
1003 			.page = -1,
1004 			.path = repo_dir->name,
1005 			.commit = rc->commit_id,
1006 		    }, "tree");
1007 		if (r == -1)
1008 			goto done;
1009 
1010 		if (fcgi_printf(c, "</div>\n"	/* .navs */
1011 		    "</div>\n"	/* .navs_wrapper */
1012 		    "<div class='dotted_line'></div>\n") == -1)
1013 			goto done;
1014 
1015 		free(age);
1016 		age = NULL;
1017 		free(author);
1018 		author = NULL;
1019 		free(msg);
1020 		msg = NULL;
1021 	}
1022 
1023 	if (t->next_id || t->prev_id) {
1024 		if (gotweb_render_navs(c->tp) == -1)
1025 			goto done;
1026 	}
1027 	fcgi_printf(c, "</div>\n"); /* .commits_content */
1028 done:
1029 	free(age);
1030 	free(author);
1031 	free(msg);
1032 	return error;
1033 }
1034 
1035 static const struct got_error *
1036 gotweb_render_branches(struct request *c)
1037 {
1038 	const struct got_error *error = NULL;
1039 	struct got_reflist_head refs;
1040 	struct got_reflist_entry *re;
1041 	struct transport *t = c->t;
1042 	struct querystring *qs = t->qs;
1043 	struct got_repository *repo = t->repo;
1044 	char *escaped_refname = NULL;
1045 	char *age = NULL;
1046 	int r;
1047 
1048 	TAILQ_INIT(&refs);
1049 
1050 	error = got_ref_list(&refs, repo, "refs/heads",
1051 	    got_ref_cmp_by_name, NULL);
1052 	if (error)
1053 		goto done;
1054 
1055 	r = fcgi_printf(c, "<div id='branches_title_wrapper'>\n"
1056 	    "<div id='branches_title'>Branches</div>\n"
1057 	    "</div>\n"	/* #branches_title_wrapper */
1058 	    "<div id='branches_content'>\n");
1059 	if (r == -1)
1060 		goto done;
1061 
1062 	TAILQ_FOREACH(re, &refs, entry) {
1063 		const char *refname = NULL;
1064 
1065 		if (got_ref_is_symbolic(re->ref))
1066 			continue;
1067 
1068 		refname = got_ref_get_name(re->ref);
1069 		if (refname == NULL) {
1070 			error = got_error_from_errno("strdup");
1071 			goto done;
1072 		}
1073 		if (strncmp(refname, "refs/heads/", 11) != 0)
1074 			continue;
1075 
1076 		error = got_get_repo_age(&age, c, refname, TM_DIFF);
1077 		if (error)
1078 			goto done;
1079 
1080 		if (strncmp(refname, "refs/heads/", 11) == 0)
1081 			refname += 11;
1082 		error = gotweb_escape_html(&escaped_refname, refname);
1083 		if (error)
1084 			goto done;
1085 
1086 		r = fcgi_printf(c, "<div class='branches_wrapper'>\n"
1087 		    "<div class='branches_age'>%s</div>\n"
1088 		    "<div class='branches_space'>&nbsp;</div>\n"
1089 		    "<div class='branch'>", age);
1090 		if (r == -1)
1091 			goto done;
1092 
1093 		r = gotweb_link(c, &(struct gotweb_url){
1094 			.action = SUMMARY,
1095 			.index_page = -1,
1096 			.page = -1,
1097 			.path = qs->path,
1098 			.headref = refname,
1099 		    }, "%s", escaped_refname);
1100 		if (r == -1)
1101 			goto done;
1102 
1103 		if (fcgi_printf(c, "</div>\n"	/* .branch */
1104 		    "<div class='navs_wrapper'>\n"
1105 		    "<div class='navs'>") == -1)
1106 			goto done;
1107 
1108 		r = gotweb_link(c, &(struct gotweb_url){
1109 			.action = SUMMARY,
1110 			.index_page = -1,
1111 			.page = -1,
1112 			.path = qs->path,
1113 			.headref = refname,
1114 		    }, "summary");
1115 		if (r == -1)
1116 			goto done;
1117 
1118 		if (fcgi_printf(c, " | ") == -1)
1119 			goto done;
1120 
1121 		r = gotweb_link(c, &(struct gotweb_url){
1122 			.action = BRIEFS,
1123 			.index_page = -1,
1124 			.page = -1,
1125 			.path = qs->path,
1126 			.headref = refname,
1127 		    }, "commit briefs");
1128 		if (r == -1)
1129 			goto done;
1130 
1131 		if (fcgi_printf(c, " | ") == -1)
1132 			goto done;
1133 
1134 		r = gotweb_link(c, &(struct gotweb_url){
1135 			.action = COMMITS,
1136 			.index_page = -1,
1137 			.page = -1,
1138 			.path = qs->path,
1139 			.headref = refname,
1140 		    }, "commits");
1141 		if (r == -1)
1142 			goto done;
1143 
1144 		r = fcgi_printf(c, "</div>\n"	/* .navs */
1145 		    "</div>\n"			/* .navs_wrapper */
1146 		    "<div class='dotted_line'></div>\n"
1147 		    "</div>\n");		/* .branches_wrapper */
1148 		if (r == -1)
1149 			goto done;
1150 
1151 		free(age);
1152 		age = NULL;
1153 		free(escaped_refname);
1154 		escaped_refname = NULL;
1155 	}
1156 	fcgi_printf(c, "</div>\n"); /* #branches_content */
1157 done:
1158 	free(age);
1159 	free(escaped_refname);
1160 	got_ref_list_free(&refs);
1161 	return error;
1162 }
1163 
1164 static const struct got_error *
1165 gotweb_render_tree(struct request *c)
1166 {
1167 	const struct got_error *error = NULL;
1168 	struct transport *t = c->t;
1169 	struct repo_commit *rc = NULL;
1170 	char *age = NULL, *msg = NULL;
1171 	int r;
1172 
1173 	error = got_get_repo_commits(c, 1);
1174 	if (error)
1175 		return error;
1176 
1177 	rc = TAILQ_FIRST(&t->repo_commits);
1178 
1179 	error = gotweb_get_time_str(&age, rc->committer_time, TM_LONG);
1180 	if (error)
1181 		goto done;
1182 
1183 	error = gotweb_escape_html(&msg, rc->commit_msg);
1184 	if (error)
1185 		goto done;
1186 
1187 	r = fcgi_printf(c, "<div id='tree_title_wrapper'>\n"
1188 	    "<div id='tree_title'>Tree</div>\n"
1189 	    "</div>\n"		/* #tree_title_wrapper */
1190 	    "<div id='tree_content'>\n"
1191 	    "<div id='tree_header_wrapper'>\n"
1192 	    "<div id='tree_header'>\n"
1193 	    "<div id='header_tree_title'>Tree:</div>\n"
1194 	    "<div id='header_tree'>%s</div>\n"
1195 	    "<div class='header_age_title'>Date:</div>\n"
1196 	    "<div class='header_age'>%s</div>\n"
1197 	    "<div id='header_commit_msg_title'>Message:</div>\n"
1198 	    "<div id='header_commit_msg'>%s</div>\n"
1199 	    "</div>\n"		/* #tree_header */
1200 	    "</div>\n"		/* #tree_header_wrapper */
1201 	    "<div class='dotted_line'></div>\n"
1202 	    "<div id='tree'>\n",
1203 	    rc->tree_id,
1204 	    age,
1205 	    msg);
1206 	if (r == -1)
1207 		goto done;
1208 
1209 	error = got_output_repo_tree(c);
1210 	if (error)
1211 		goto done;
1212 
1213 	fcgi_printf(c, "</div>\n"); /* #tree */
1214 	fcgi_printf(c, "</div>\n"); /* #tree_content */
1215 done:
1216 	free(age);
1217 	free(msg);
1218 	return error;
1219 }
1220 
1221 static const struct got_error *
1222 gotweb_render_diff(struct request *c)
1223 {
1224 	const struct got_error *error = NULL;
1225 	struct transport *t = c->t;
1226 	struct repo_commit *rc = NULL;
1227 	char *age = NULL, *author = NULL, *msg = NULL;
1228 	int r;
1229 
1230 	error = got_get_repo_commits(c, 1);
1231 	if (error)
1232 		return error;
1233 
1234 	rc = TAILQ_FIRST(&t->repo_commits);
1235 
1236 	error = gotweb_get_time_str(&age, rc->committer_time, TM_LONG);
1237 	if (error)
1238 		goto done;
1239 	error = gotweb_escape_html(&author, rc->author);
1240 	if (error)
1241 		goto done;
1242 	error = gotweb_escape_html(&msg, rc->commit_msg);
1243 	if (error)
1244 		goto done;
1245 
1246 	r = fcgi_printf(c, "<div id='diff_title_wrapper'>\n"
1247 	    "<div id='diff_title'>Commit Diff</div>\n"
1248 	    "</div>\n"		/* #diff_title_wrapper */
1249 	    "<div id='diff_content'>\n"
1250 	    "<div id='diff_header_wrapper'>\n"
1251 	    "<div id='diff_header'>\n"
1252 	    "<div id='header_diff_title'>Diff:</div>\n"
1253 	    "<div id='header_diff'>%s<br />%s</div>\n"
1254 	    "<div class='header_commit_title'>Commit:</div>\n"
1255 	    "<div class='header_commit'>%s</div>\n"
1256 	    "<div id='header_tree_title'>Tree:</div>\n"
1257 	    "<div id='header_tree'>%s</div>\n"
1258 	    "<div class='header_author_title'>Author:</div>\n"
1259 	    "<div class='header_author'>%s</div>\n"
1260 	    "<div class='header_age_title'>Date:</div>\n"
1261 	    "<div class='header_age'>%s</div>\n"
1262 	    "<div id='header_commit_msg_title'>Message:</div>\n"
1263 	    "<div id='header_commit_msg'>%s</div>\n"
1264 	    "</div>\n"		/* #diff_header */
1265 	    "</div>\n"		/* #diff_header_wrapper */
1266 	    "<div class='dotted_line'></div>\n"
1267 	    "<div id='diff'>\n",
1268 	    rc->parent_id, rc->commit_id,
1269 	    rc->commit_id,
1270 	    rc->tree_id,
1271 	    author,
1272 	    age,
1273 	    msg);
1274 	if (r == -1)
1275 		goto done;
1276 
1277 	error = got_output_repo_diff(c);
1278 	if (error)
1279 		goto done;
1280 
1281 	fcgi_printf(c, "</div>\n"); /* #diff */
1282 	fcgi_printf(c, "</div>\n"); /* #diff_content */
1283 done:
1284 	free(age);
1285 	free(author);
1286 	free(msg);
1287 	return error;
1288 }
1289 
1290 static const struct got_error *
1291 gotweb_render_summary(struct request *c)
1292 {
1293 	const struct got_error *error = NULL;
1294 	struct transport *t = c->t;
1295 	struct server *srv = c->srv;
1296 	int r;
1297 
1298 	if (fcgi_printf(c, "<div id='summary_wrapper'>\n") == -1)
1299 		goto done;
1300 
1301 	if (srv->show_repo_description) {
1302 		r = fcgi_printf(c,
1303 		    "<div id='description_title'>Description:</div>\n"
1304 		    "<div id='description'>%s</div>\n",
1305 		    t->repo_dir->description ? t->repo_dir->description : "");
1306 		if (r == -1)
1307 			goto done;
1308 	}
1309 
1310 	if (srv->show_repo_owner) {
1311 		r = fcgi_printf(c,
1312 		    "<div id='repo_owner_title'>Owner:</div>\n"
1313 		    "<div id='repo_owner'>%s</div>\n",
1314 		    t->repo_dir->owner ? t->repo_dir->owner : "");
1315 		if (r == -1)
1316 			goto done;
1317 	}
1318 
1319 	if (srv->show_repo_age) {
1320 		r = fcgi_printf(c,
1321 		    "<div id='last_change_title'>Last Change:</div>\n"
1322 		    "<div id='last_change'>%s</div>\n",
1323 		    t->repo_dir->age);
1324 		if (r == -1)
1325 			goto done;
1326 	}
1327 
1328 	if (srv->show_repo_cloneurl) {
1329 		r = fcgi_printf(c,
1330 		    "<div id='cloneurl_title'>Clone URL:</div>\n"
1331 		    "<div id='cloneurl'>%s</div>\n",
1332 		    t->repo_dir->url ? t->repo_dir->url : "");
1333 		if (r == -1)
1334 			goto done;
1335 	}
1336 
1337 	r = fcgi_printf(c, "</div>\n"); /* #summary_wrapper */
1338 	if (r == -1)
1339 		goto done;
1340 
1341 	if (gotweb_render_briefs(c->tp) == -1)
1342 		goto done;
1343 
1344 	error = gotweb_render_tags(c);
1345 	if (error) {
1346 		log_warnx("%s: %s", __func__, error->msg);
1347 		goto done;
1348 	}
1349 
1350 	error = gotweb_render_branches(c);
1351 	if (error)
1352 		log_warnx("%s: %s", __func__, error->msg);
1353 done:
1354 	return error;
1355 }
1356 
1357 static const struct got_error *
1358 gotweb_render_tag(struct request *c)
1359 {
1360 	const struct got_error *error = NULL;
1361 	struct repo_tag *rt = NULL;
1362 	struct transport *t = c->t;
1363 	char *tagname = NULL, *age = NULL, *author = NULL, *msg = NULL;
1364 
1365 	error = got_get_repo_tags(c, 1);
1366 	if (error)
1367 		goto done;
1368 
1369 	if (t->tag_count == 0) {
1370 		error = got_error_set_errno(GOT_ERR_BAD_OBJ_ID,
1371 		    "bad commit id");
1372 		goto done;
1373 	}
1374 
1375 	rt = TAILQ_LAST(&t->repo_tags, repo_tags_head);
1376 
1377 	error = gotweb_get_time_str(&age, rt->tagger_time, TM_LONG);
1378 	if (error)
1379 		goto done;
1380 	error = gotweb_escape_html(&author, rt->tagger);
1381 	if (error)
1382 		goto done;
1383 	error = gotweb_escape_html(&msg, rt->commit_msg);
1384 	if (error)
1385 		goto done;
1386 
1387 	tagname = rt->tag_name;
1388 	if (strncmp(tagname, "refs/", 5) == 0)
1389 		tagname += 5;
1390 	error = gotweb_escape_html(&tagname, tagname);
1391 	if (error)
1392 		goto done;
1393 
1394 	fcgi_printf(c, "<div id='tags_title_wrapper'>\n"
1395 	    "<div id='tags_title'>Tag</div>\n"
1396 	    "</div>\n"		/* #tags_title_wrapper */
1397 	    "<div id='tags_content'>\n"
1398 	    "<div id='tag_header_wrapper'>\n"
1399 	    "<div id='tag_header'>\n"
1400 	    "<div class='header_commit_title'>Commit:</div>\n"
1401 	    "<div class='header_commit'>%s"
1402 	    " <span class='refs_str'>(%s)</span></div>\n"
1403 	    "<div class='header_author_title'>Tagger:</div>\n"
1404 	    "<div class='header_author'>%s</div>\n"
1405 	    "<div class='header_age_title'>Date:</div>\n"
1406 	    "<div class='header_age'>%s</div>\n"
1407 	    "<div id='header_commit_msg_title'>Message:</div>\n"
1408 	    "<div id='header_commit_msg'>%s</div>\n"
1409 	    "</div>\n"		/* #tag_header */
1410 	    "<div class='dotted_line'></div>\n"
1411 	    "<div id='tag_commit'>\n%s</div>"
1412 	    "</div>"		/* #tag_header_wrapper */
1413 	    "</div>",		/* #tags_content */
1414 	    rt->commit_id,
1415 	    tagname,
1416 	    author,
1417 	    age,
1418 	    msg,
1419 	    rt->tag_commit);
1420 
1421 done:
1422 	free(age);
1423 	free(author);
1424 	free(msg);
1425 	return error;
1426 }
1427 
1428 static const struct got_error *
1429 gotweb_render_tags(struct request *c)
1430 {
1431 	const struct got_error *error = NULL;
1432 	struct repo_tag *rt = NULL;
1433 	struct server *srv = c->srv;
1434 	struct transport *t = c->t;
1435 	struct querystring *qs = t->qs;
1436 	struct repo_dir *repo_dir = t->repo_dir;
1437 	char *age = NULL, *tagname = NULL, *msg = NULL, *newline;
1438 	int r, commit_found = 0;
1439 
1440 	if (qs->action == BRIEFS) {
1441 		qs->action = TAGS;
1442 		error = got_get_repo_tags(c, D_MAXSLCOMMDISP);
1443 	} else
1444 		error = got_get_repo_tags(c, srv->max_commits_display);
1445 	if (error)
1446 		goto done;
1447 
1448 	r = fcgi_printf(c, "<div id='tags_title_wrapper'>\n"
1449 	    "<div id='tags_title'>Tags</div>\n"
1450 	    "</div>\n"		/* #tags_title_wrapper */
1451 	    "<div id='tags_content'>\n");
1452 	if (r == -1)
1453 		goto done;
1454 
1455 	if (t->tag_count == 0) {
1456 		r = fcgi_printf(c, "<div id='err_content'>%s\n</div>\n",
1457 		    "This repository contains no tags");
1458 		if (r == -1)
1459 			goto done;
1460 	}
1461 
1462 	TAILQ_FOREACH(rt, &t->repo_tags, entry) {
1463 		if (commit_found == 0 && qs->commit != NULL) {
1464 			if (strcmp(qs->commit, rt->commit_id) != 0)
1465 				continue;
1466 			else
1467 				commit_found = 1;
1468 		}
1469 		error = gotweb_get_time_str(&age, rt->tagger_time, TM_DIFF);
1470 		if (error)
1471 			goto done;
1472 
1473 		tagname = rt->tag_name;
1474 		if (strncmp(tagname, "refs/tags/", 10) == 0)
1475 			tagname += 10;
1476 		error = gotweb_escape_html(&tagname, tagname);
1477 		if (error)
1478 			goto done;
1479 
1480 		if (rt->tag_commit != NULL) {
1481 			newline = strchr(rt->tag_commit, '\n');
1482 			if (newline)
1483 				*newline = '\0';
1484 			error = gotweb_escape_html(&msg, rt->tag_commit);
1485 			if (error)
1486 				goto done;
1487 		}
1488 
1489 		if (fcgi_printf(c, "<div class='tag_age'>%s</div>\n"
1490 		    "<div class='tag'>%s</div>\n"
1491 		    "<div class='tag_log'>", age, tagname) == -1)
1492 			goto done;
1493 
1494 		r = gotweb_link(c, &(struct gotweb_url){
1495 			.action = TAG,
1496 			.index_page = -1,
1497 			.page = -1,
1498 			.path = repo_dir->name,
1499 			.commit = rt->commit_id,
1500 		    }, "%s", msg ? msg : "");
1501 		if (r == -1)
1502 			goto done;
1503 
1504 		if (fcgi_printf(c, "</div>\n"	/* .tag_log */
1505 		    "<div class='navs_wrapper'>\n"
1506 		    "<div class='navs'>") == -1)
1507 			goto done;
1508 
1509 		r = gotweb_link(c, &(struct gotweb_url){
1510 			.action = TAG,
1511 			.index_page = -1,
1512 			.page = -1,
1513 			.path = repo_dir->name,
1514 			.commit = rt->commit_id,
1515 		    }, "tag");
1516 		if (r == -1)
1517 			goto done;
1518 
1519 		if (fcgi_printf(c, " | ") == -1)
1520 			goto done;
1521 
1522 		r = gotweb_link(c, &(struct gotweb_url){
1523 			.action = BRIEFS,
1524 			.index_page = -1,
1525 			.page = -1,
1526 			.path = repo_dir->name,
1527 			.commit = rt->commit_id,
1528 		    }, "commit briefs");
1529 		if (r == -1)
1530 			goto done;
1531 
1532 		if (fcgi_printf(c, " | ") == -1)
1533 			goto done;
1534 
1535 		r = gotweb_link(c, &(struct gotweb_url){
1536 			.action = COMMITS,
1537 			.index_page = -1,
1538 			.page = -1,
1539 			.path = repo_dir->name,
1540 			.commit = rt->commit_id,
1541 		    }, "commits");
1542 		if (r == -1)
1543 			goto done;
1544 
1545 		r = fcgi_printf(c,
1546 		    "</div>\n"	/* .navs */
1547 		    "</div>\n"	/* .navs_wrapper */
1548 		    "<div class='dotted_line'></div>\n");
1549 		if (r == -1)
1550 			goto done;
1551 
1552 		free(age);
1553 		age = NULL;
1554 		free(tagname);
1555 		tagname = NULL;
1556 		free(msg);
1557 		msg = NULL;
1558 	}
1559 	if (t->next_id || t->prev_id) {
1560 		if (gotweb_render_navs(c->tp) == -1)
1561 			goto done;
1562 	}
1563 	fcgi_printf(c, "</div>\n"); /* #tags_content */
1564 done:
1565 	free(age);
1566 	free(tagname);
1567 	free(msg);
1568 	return error;
1569 }
1570 
1571 const struct got_error *
1572 gotweb_escape_html(char **escaped_html, const char *orig_html)
1573 {
1574 	const struct got_error *error = NULL;
1575 	struct escape_pair {
1576 		char c;
1577 		const char *s;
1578 	} esc[] = {
1579 		{ '>', "&gt;" },
1580 		{ '<', "&lt;" },
1581 		{ '&', "&amp;" },
1582 		{ '"', "&quot;" },
1583 		{ '\'', "&apos;" },
1584 		{ '\n', "<br />" },
1585 	};
1586 	size_t orig_len, len;
1587 	int i, j, x;
1588 
1589 	orig_len = strlen(orig_html);
1590 	len = orig_len;
1591 	for (i = 0; i < orig_len; i++) {
1592 		for (j = 0; j < nitems(esc); j++) {
1593 			if (orig_html[i] != esc[j].c)
1594 				continue;
1595 			len += strlen(esc[j].s) - 1 /* escaped char */;
1596 		}
1597 	}
1598 
1599 	*escaped_html = calloc(len + 1 /* NUL */, sizeof(**escaped_html));
1600 	if (*escaped_html == NULL)
1601 		return got_error_from_errno("calloc");
1602 
1603 	x = 0;
1604 	for (i = 0; i < orig_len; i++) {
1605 		int escaped = 0;
1606 		for (j = 0; j < nitems(esc); j++) {
1607 			if (orig_html[i] != esc[j].c)
1608 				continue;
1609 
1610 			if (strlcat(*escaped_html, esc[j].s, len + 1)
1611 			    >= len + 1) {
1612 				error = got_error(GOT_ERR_NO_SPACE);
1613 				goto done;
1614 			}
1615 			x += strlen(esc[j].s);
1616 			escaped = 1;
1617 			break;
1618 		}
1619 		if (!escaped) {
1620 			(*escaped_html)[x] = orig_html[i];
1621 			x++;
1622 		}
1623 	}
1624 done:
1625 	if (error) {
1626 		free(*escaped_html);
1627 		*escaped_html = NULL;
1628 	} else {
1629 		(*escaped_html)[x] = '\0';
1630 	}
1631 
1632 	return error;
1633 }
1634 
1635 static inline int
1636 should_urlencode(int c)
1637 {
1638 	if (c <= ' ' || c >= 127)
1639 		return 1;
1640 
1641 	switch (c) {
1642 		/* gen-delim */
1643 	case ':':
1644 	case '/':
1645 	case '?':
1646 	case '#':
1647 	case '[':
1648 	case ']':
1649 	case '@':
1650 		/* sub-delims */
1651 	case '!':
1652 	case '$':
1653 	case '&':
1654 	case '\'':
1655 	case '(':
1656 	case ')':
1657 	case '*':
1658 	case '+':
1659 	case ',':
1660 	case ';':
1661 	case '=':
1662 		return 1;
1663 	default:
1664 		return 0;
1665 	}
1666 }
1667 
1668 static char *
1669 gotweb_urlencode(const char *str)
1670 {
1671 	const char *s;
1672 	char *escaped;
1673 	size_t i, len;
1674 	int a, b;
1675 
1676 	len = 0;
1677 	for (s = str; *s; ++s) {
1678 		len++;
1679 		if (should_urlencode(*s))
1680 			len += 2;
1681 	}
1682 
1683 	escaped = calloc(1, len + 1);
1684 	if (escaped == NULL)
1685 		return NULL;
1686 
1687 	i = 0;
1688 	for (s = str; *s; ++s) {
1689 		if (should_urlencode(*s)) {
1690 			a = (*s & 0xF0) >> 4;
1691 			b = (*s & 0x0F);
1692 
1693 			escaped[i++] = '%';
1694 			escaped[i++] = a <= 9 ? ('0' + a) : ('7' + a);
1695 			escaped[i++] = b <= 9 ? ('0' + b) : ('7' + b);
1696 		} else
1697 			escaped[i++] = *s;
1698 	}
1699 
1700 	return escaped;
1701 }
1702 
1703 const char *
1704 gotweb_action_name(int action)
1705 {
1706 	switch (action) {
1707 	case BLAME:
1708 		return "blame";
1709 	case BLOB:
1710 		return "blob";
1711 	case BRIEFS:
1712 		return "briefs";
1713 	case COMMITS:
1714 		return "commits";
1715 	case DIFF:
1716 		return "diff";
1717 	case ERR:
1718 		return "err";
1719 	case INDEX:
1720 		return "index";
1721 	case SUMMARY:
1722 		return "summary";
1723 	case TAG:
1724 		return "tag";
1725 	case TAGS:
1726 		return "tags";
1727 	case TREE:
1728 		return "tree";
1729 	default:
1730 		return NULL;
1731 	}
1732 }
1733 
1734 int
1735 gotweb_render_url(struct request *c, struct gotweb_url *url)
1736 {
1737 	const char *sep = "?", *action;
1738 	char *tmp;
1739 	int r;
1740 
1741 	action = gotweb_action_name(url->action);
1742 	if (action != NULL) {
1743 		if (fcgi_printf(c, "?action=%s", action) == -1)
1744 			return -1;
1745 		sep = "&";
1746 	}
1747 
1748 	if (url->commit) {
1749 		if (fcgi_printf(c, "%scommit=%s", sep, url->commit) == -1)
1750 			return -1;
1751 		sep = "&";
1752 	}
1753 
1754 	if (url->previd) {
1755 		if (fcgi_printf(c, "%sprevid=%s", sep, url->previd) == -1)
1756 			return -1;
1757 		sep = "&";
1758 	}
1759 
1760 	if (url->prevset) {
1761 		if (fcgi_printf(c, "%sprevset=%s", sep, url->prevset) == -1)
1762 			return -1;
1763 		sep = "&";
1764 	}
1765 
1766 	if (url->file) {
1767 		tmp = gotweb_urlencode(url->file);
1768 		if (tmp == NULL)
1769 			return -1;
1770 		r = fcgi_printf(c, "%sfile=%s", sep, tmp);
1771 		free(tmp);
1772 		if (r == -1)
1773 			return -1;
1774 		sep = "&";
1775 	}
1776 
1777 	if (url->folder) {
1778 		tmp = gotweb_urlencode(url->folder);
1779 		if (tmp == NULL)
1780 			return -1;
1781 		r = fcgi_printf(c, "%sfolder=%s", sep, tmp);
1782 		free(tmp);
1783 		if (r == -1)
1784 			return -1;
1785 		sep = "&";
1786 	}
1787 
1788 	if (url->headref) {
1789 		tmp = gotweb_urlencode(url->headref);
1790 		if (tmp == NULL)
1791 			return -1;
1792 		r = fcgi_printf(c, "%sheadref=%s", sep, url->headref);
1793 		free(tmp);
1794 		if (r == -1)
1795 			return -1;
1796 		sep = "&";
1797 	}
1798 
1799 	if (url->index_page != -1) {
1800 		if (fcgi_printf(c, "%sindex_page=%d", sep,
1801 		    url->index_page) == -1)
1802 			return -1;
1803 		sep = "&";
1804 	}
1805 
1806 	if (url->path) {
1807 		tmp = gotweb_urlencode(url->path);
1808 		if (tmp == NULL)
1809 			return -1;
1810 		r = fcgi_printf(c, "%spath=%s", sep, tmp);
1811 		free(tmp);
1812 		if (r == -1)
1813 			return -1;
1814 		sep = "&";
1815 	}
1816 
1817 	if (url->page != -1) {
1818 		if (fcgi_printf(c, "%spage=%d", sep, url->page) == -1)
1819 			return -1;
1820 		sep = "&";
1821 	}
1822 
1823 	return 0;
1824 }
1825 
1826 int
1827 gotweb_link(struct request *c, struct gotweb_url *url, const char *fmt, ...)
1828 {
1829 	va_list ap;
1830 	int r;
1831 
1832 	if (fcgi_printf(c, "<a href='") == -1)
1833 		return -1;
1834 
1835 	if (gotweb_render_url(c, url) == -1)
1836 		return -1;
1837 
1838 	if (fcgi_printf(c, "'>") == -1)
1839 		return -1;
1840 
1841 	va_start(ap, fmt);
1842 	r = fcgi_vprintf(c, fmt, ap);
1843 	va_end(ap);
1844 	if (r == -1)
1845 		return -1;
1846 
1847 	if (fcgi_printf(c, "</a>"))
1848 		return -1;
1849 	return 0;
1850 }
1851 
1852 static struct got_repository *
1853 find_cached_repo(struct server *srv, const char *path)
1854 {
1855 	int i;
1856 
1857 	for (i = 0; i < srv->ncached_repos; i++) {
1858 		if (strcmp(srv->cached_repos[i].path, path) == 0)
1859 			return srv->cached_repos[i].repo;
1860 	}
1861 
1862 	return NULL;
1863 }
1864 
1865 static const struct got_error *
1866 cache_repo(struct got_repository **new, struct server *srv,
1867     struct repo_dir *repo_dir, struct socket *sock)
1868 {
1869 	const struct got_error *error = NULL;
1870 	struct got_repository *repo;
1871 	struct cached_repo *cr;
1872 	int evicted = 0;
1873 
1874 	if (srv->ncached_repos >= GOTWEBD_REPO_CACHESIZE) {
1875 		cr = &srv->cached_repos[srv->ncached_repos - 1];
1876 		error = got_repo_close(cr->repo);
1877 		memset(cr, 0, sizeof(*cr));
1878 		srv->ncached_repos--;
1879 		if (error)
1880 			return error;
1881 		memmove(&srv->cached_repos[1], &srv->cached_repos[0],
1882 		    srv->ncached_repos * sizeof(srv->cached_repos[0]));
1883 		cr = &srv->cached_repos[0];
1884 		evicted = 1;
1885 	} else {
1886 		cr = &srv->cached_repos[srv->ncached_repos];
1887 	}
1888 
1889 	error = got_repo_open(&repo, repo_dir->path, NULL, sock->pack_fds);
1890 	if (error) {
1891 		if (evicted) {
1892 			memmove(&srv->cached_repos[0], &srv->cached_repos[1],
1893 			    srv->ncached_repos * sizeof(srv->cached_repos[0]));
1894 		}
1895 		return error;
1896 	}
1897 
1898 	if (strlcpy(cr->path, repo_dir->path, sizeof(cr->path))
1899 	    >= sizeof(cr->path)) {
1900 		if (evicted) {
1901 			memmove(&srv->cached_repos[0], &srv->cached_repos[1],
1902 			    srv->ncached_repos * sizeof(srv->cached_repos[0]));
1903 		}
1904 		return got_error(GOT_ERR_NO_SPACE);
1905 	}
1906 
1907 	cr->repo = repo;
1908 	srv->ncached_repos++;
1909 	*new = repo;
1910 	return NULL;
1911 }
1912 
1913 static const struct got_error *
1914 gotweb_load_got_path(struct request *c, struct repo_dir *repo_dir)
1915 {
1916 	const struct got_error *error = NULL;
1917 	struct socket *sock = c->sock;
1918 	struct server *srv = c->srv;
1919 	struct transport *t = c->t;
1920 	struct got_repository *repo = NULL;
1921 	DIR *dt;
1922 	char *dir_test;
1923 
1924 	if (asprintf(&dir_test, "%s/%s/%s", srv->repos_path, repo_dir->name,
1925 	    GOTWEB_GIT_DIR) == -1)
1926 		return got_error_from_errno("asprintf");
1927 
1928 	dt = opendir(dir_test);
1929 	if (dt == NULL) {
1930 		free(dir_test);
1931 	} else {
1932 		repo_dir->path = dir_test;
1933 		dir_test = NULL;
1934 		goto done;
1935 	}
1936 
1937 	if (asprintf(&dir_test, "%s/%s", srv->repos_path,
1938 	    repo_dir->name) == -1)
1939 		return got_error_from_errno("asprintf");
1940 
1941 	dt = opendir(dir_test);
1942 	if (dt == NULL) {
1943 		error = got_error_path(repo_dir->name, GOT_ERR_NOT_GIT_REPO);
1944 		goto err;
1945 	} else {
1946 		repo_dir->path = dir_test;
1947 		dir_test = NULL;
1948 	}
1949 
1950 done:
1951 	if (srv->respect_exportok &&
1952 	    faccessat(dirfd(dt), "git-daemon-export-ok", F_OK, 0) == -1) {
1953 		error = got_error_path(repo_dir->name, GOT_ERR_NOT_GIT_REPO);
1954 		goto err;
1955 	}
1956 
1957 	repo = find_cached_repo(srv, repo_dir->path);
1958 	if (repo == NULL) {
1959 		error = cache_repo(&repo, srv, repo_dir, sock);
1960 		if (error)
1961 			goto err;
1962 	}
1963 	t->repo = repo;
1964 	error = gotweb_get_repo_description(&repo_dir->description, srv,
1965 	    repo_dir->path, dirfd(dt));
1966 	if (error)
1967 		goto err;
1968 	error = got_get_repo_owner(&repo_dir->owner, c);
1969 	if (error)
1970 		goto err;
1971 	error = got_get_repo_age(&repo_dir->age, c, NULL, TM_DIFF);
1972 	if (error)
1973 		goto err;
1974 	error = gotweb_get_clone_url(&repo_dir->url, srv, repo_dir->path,
1975 	    dirfd(dt));
1976 err:
1977 	free(dir_test);
1978 	if (dt != NULL && closedir(dt) == EOF && error == NULL)
1979 		error = got_error_from_errno("closedir");
1980 	return error;
1981 }
1982 
1983 static const struct got_error *
1984 gotweb_init_repo_dir(struct repo_dir **repo_dir, const char *dir)
1985 {
1986 	const struct got_error *error;
1987 
1988 	*repo_dir = calloc(1, sizeof(**repo_dir));
1989 	if (*repo_dir == NULL)
1990 		return got_error_from_errno("calloc");
1991 
1992 	if (asprintf(&(*repo_dir)->name, "%s", dir) == -1) {
1993 		error = got_error_from_errno("asprintf");
1994 		free(*repo_dir);
1995 		*repo_dir = NULL;
1996 		return error;
1997 	}
1998 	(*repo_dir)->owner = NULL;
1999 	(*repo_dir)->description = NULL;
2000 	(*repo_dir)->url = NULL;
2001 	(*repo_dir)->age = NULL;
2002 	(*repo_dir)->path = NULL;
2003 
2004 	return NULL;
2005 }
2006 
2007 static const struct got_error *
2008 gotweb_get_repo_description(char **description, struct server *srv,
2009     const char *dirpath, int dir)
2010 {
2011 	const struct got_error *error = NULL;
2012 	struct stat sb;
2013 	int fd = -1;
2014 	off_t len;
2015 
2016 	*description = NULL;
2017 	if (srv->show_repo_description == 0)
2018 		return NULL;
2019 
2020 	fd = openat(dir, "description", O_RDONLY);
2021 	if (fd == -1) {
2022 		if (errno != ENOENT && errno != EACCES) {
2023 			error = got_error_from_errno_fmt("openat %s/%s",
2024 			    dirpath, "description");
2025 		}
2026 		goto done;
2027 	}
2028 
2029 	if (fstat(fd, &sb) == -1) {
2030 		error = got_error_from_errno_fmt("fstat %s/%s",
2031 		    dirpath, "description");
2032 		goto done;
2033 	}
2034 
2035 	len = sb.st_size;
2036 	if (len > GOTWEBD_MAXDESCRSZ - 1)
2037 		len = GOTWEBD_MAXDESCRSZ - 1;
2038 
2039 	*description = calloc(len + 1, sizeof(**description));
2040 	if (*description == NULL) {
2041 		error = got_error_from_errno("calloc");
2042 		goto done;
2043 	}
2044 
2045 	if (read(fd, *description, len) == -1)
2046 		error = got_error_from_errno("read");
2047 done:
2048 	if (fd != -1 && close(fd) == -1 && error == NULL)
2049 		error = got_error_from_errno("close");
2050 	return error;
2051 }
2052 
2053 static const struct got_error *
2054 gotweb_get_clone_url(char **url, struct server *srv, const char *dirpath,
2055     int dir)
2056 {
2057 	const struct got_error *error = NULL;
2058 	struct stat sb;
2059 	int fd = -1;
2060 	off_t len;
2061 
2062 	*url = NULL;
2063 	if (srv->show_repo_cloneurl == 0)
2064 		return NULL;
2065 
2066 	fd = openat(dir, "cloneurl", O_RDONLY);
2067 	if (fd == -1) {
2068 		if (errno != ENOENT && errno != EACCES) {
2069 			error = got_error_from_errno_fmt("openat %s/%s",
2070 			    dirpath, "cloneurl");
2071 		}
2072 		goto done;
2073 	}
2074 
2075 	if (fstat(fd, &sb) == -1) {
2076 		error = got_error_from_errno_fmt("fstat %s/%s",
2077 		    dirpath, "cloneurl");
2078 		goto done;
2079 	}
2080 
2081 	len = sb.st_size;
2082 	if (len > GOTWEBD_MAXCLONEURLSZ - 1)
2083 		len = GOTWEBD_MAXCLONEURLSZ - 1;
2084 
2085 	*url = calloc(len + 1, sizeof(**url));
2086 	if (*url == NULL) {
2087 		error = got_error_from_errno("calloc");
2088 		goto done;
2089 	}
2090 
2091 	if (read(fd, *url, len) == -1)
2092 		error = got_error_from_errno("read");
2093 done:
2094 	if (fd != -1 && close(fd) == -1 && error == NULL)
2095 		error = got_error_from_errno("close");
2096 	return error;
2097 }
2098 
2099 const struct got_error *
2100 gotweb_get_time_str(char **repo_age, time_t committer_time, int ref_tm)
2101 {
2102 	struct tm tm;
2103 	long long diff_time;
2104 	const char *years = "years ago", *months = "months ago";
2105 	const char *weeks = "weeks ago", *days = "days ago";
2106 	const char *hours = "hours ago",  *minutes = "minutes ago";
2107 	const char *seconds = "seconds ago", *now = "right now";
2108 	char *s;
2109 	char datebuf[29];
2110 
2111 	*repo_age = NULL;
2112 
2113 	switch (ref_tm) {
2114 	case TM_DIFF:
2115 		diff_time = time(NULL) - committer_time;
2116 		if (diff_time > 60 * 60 * 24 * 365 * 2) {
2117 			if (asprintf(repo_age, "%lld %s",
2118 			    (diff_time / 60 / 60 / 24 / 365), years) == -1)
2119 				return got_error_from_errno("asprintf");
2120 		} else if (diff_time > 60 * 60 * 24 * (365 / 12) * 2) {
2121 			if (asprintf(repo_age, "%lld %s",
2122 			    (diff_time / 60 / 60 / 24 / (365 / 12)),
2123 			    months) == -1)
2124 				return got_error_from_errno("asprintf");
2125 		} else if (diff_time > 60 * 60 * 24 * 7 * 2) {
2126 			if (asprintf(repo_age, "%lld %s",
2127 			    (diff_time / 60 / 60 / 24 / 7), weeks) == -1)
2128 				return got_error_from_errno("asprintf");
2129 		} else if (diff_time > 60 * 60 * 24 * 2) {
2130 			if (asprintf(repo_age, "%lld %s",
2131 			    (diff_time / 60 / 60 / 24), days) == -1)
2132 				return got_error_from_errno("asprintf");
2133 		} else if (diff_time > 60 * 60 * 2) {
2134 			if (asprintf(repo_age, "%lld %s",
2135 			    (diff_time / 60 / 60), hours) == -1)
2136 				return got_error_from_errno("asprintf");
2137 		} else if (diff_time > 60 * 2) {
2138 			if (asprintf(repo_age, "%lld %s", (diff_time / 60),
2139 			    minutes) == -1)
2140 				return got_error_from_errno("asprintf");
2141 		} else if (diff_time > 2) {
2142 			if (asprintf(repo_age, "%lld %s", diff_time,
2143 			    seconds) == -1)
2144 				return got_error_from_errno("asprintf");
2145 		} else {
2146 			if (asprintf(repo_age, "%s", now) == -1)
2147 				return got_error_from_errno("asprintf");
2148 		}
2149 		break;
2150 	case TM_LONG:
2151 		if (gmtime_r(&committer_time, &tm) == NULL)
2152 			return got_error_from_errno("gmtime_r");
2153 
2154 		s = asctime_r(&tm, datebuf);
2155 		if (s == NULL)
2156 			return got_error_from_errno("asctime_r");
2157 
2158 		if (asprintf(repo_age, "%s UTC", datebuf) == -1)
2159 			return got_error_from_errno("asprintf");
2160 		break;
2161 	}
2162 	return NULL;
2163 }