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a hyperfast web frontend for git written in c

ui-shared.c (view raw)

  1/* ui-shared.c: common web output functions
  2 *
  3 * Copyright (C) 2006 Lars Hjemli
  4 *
  5 * Licensed under GNU General Public License v2
  6 *   (see COPYING for full license text)
  7 */
  8
  9#include "cgit.h"
 10#include "cmd.h"
 11#include "html.h"
 12
 13const char cgit_doctype[] =
 14"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
 15"  \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
 16
 17static char *http_date(time_t t)
 18{
 19	static char day[][4] =
 20		{"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
 21	static char month[][4] =
 22		{"Jan", "Feb", "Mar", "Apr", "May", "Jun",
 23		 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
 24	struct tm *tm = gmtime(&t);
 25	return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
 26		   tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
 27		   tm->tm_hour, tm->tm_min, tm->tm_sec);
 28}
 29
 30void cgit_print_error(const char *msg)
 31{
 32	html("<div class='error'>");
 33	html_txt(msg);
 34	html("</div>\n");
 35}
 36
 37char *cgit_httpscheme()
 38{
 39	if (ctx.env.https && !strcmp(ctx.env.https, "on"))
 40		return "https://";
 41	else
 42		return "http://";
 43}
 44
 45char *cgit_hosturl()
 46{
 47	if (ctx.env.http_host)
 48		return ctx.env.http_host;
 49	if (!ctx.env.server_name)
 50		return NULL;
 51	if (!ctx.env.server_port || atoi(ctx.env.server_port) == 80)
 52		return ctx.env.server_name;
 53	return xstrdup(fmt("%s:%s", ctx.env.server_name, ctx.env.server_port));
 54}
 55
 56char *cgit_rooturl()
 57{
 58	if (ctx.cfg.virtual_root)
 59		return fmt("%s/", ctx.cfg.virtual_root);
 60	else
 61		return ctx.cfg.script_name;
 62}
 63
 64char *cgit_repourl(const char *reponame)
 65{
 66	if (ctx.cfg.virtual_root) {
 67		return fmt("%s/%s/", ctx.cfg.virtual_root, reponame);
 68	} else {
 69		return fmt("?r=%s", reponame);
 70	}
 71}
 72
 73char *cgit_fileurl(const char *reponame, const char *pagename,
 74		   const char *filename, const char *query)
 75{
 76	char *tmp;
 77	char *delim;
 78
 79	if (ctx.cfg.virtual_root) {
 80		tmp = fmt("%s/%s/%s/%s", ctx.cfg.virtual_root, reponame,
 81			  pagename, (filename ? filename:""));
 82		delim = "?";
 83	} else {
 84		tmp = fmt("?url=%s/%s/%s", reponame, pagename,
 85			  (filename ? filename : ""));
 86		delim = "&amp;";
 87	}
 88	if (query)
 89		tmp = fmt("%s%s%s", tmp, delim, query);
 90	return tmp;
 91}
 92
 93char *cgit_pageurl(const char *reponame, const char *pagename,
 94		   const char *query)
 95{
 96	return cgit_fileurl(reponame,pagename,0,query);
 97}
 98
 99const char *cgit_repobasename(const char *reponame)
100{
101	/* I assume we don't need to store more than one repo basename */
102	static char rvbuf[1024];
103	int p;
104	const char *rv;
105	strncpy(rvbuf,reponame,sizeof(rvbuf));
106	if(rvbuf[sizeof(rvbuf)-1])
107		die("cgit_repobasename: truncated repository name '%s'", reponame);
108	p = strlen(rvbuf)-1;
109	/* strip trailing slashes */
110	while(p && rvbuf[p]=='/') rvbuf[p--]=0;
111	/* strip trailing .git */
112	if(p>=3 && !strncmp(&rvbuf[p-3],".git",4)) {
113		p -= 3; rvbuf[p--] = 0;
114	}
115	/* strip more trailing slashes if any */
116	while( p && rvbuf[p]=='/') rvbuf[p--]=0;
117	/* find last slash in the remaining string */
118	rv = strrchr(rvbuf,'/');
119	if(rv)
120		return ++rv;
121	return rvbuf;
122}
123
124char *cgit_currurl()
125{
126	if (!ctx.cfg.virtual_root)
127		return ctx.cfg.script_name;
128	else if (ctx.qry.page)
129		return fmt("%s/%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo, ctx.qry.page);
130	else if (ctx.qry.repo)
131		return fmt("%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo);
132	else
133		return fmt("%s/", ctx.cfg.virtual_root);
134}
135
136static void site_url(const char *page, const char *search, const char *sort, int ofs)
137{
138	char *delim = "?";
139
140	if (ctx.cfg.virtual_root) {
141		html_attr(ctx.cfg.virtual_root);
142		if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
143			html("/");
144	} else
145		html(ctx.cfg.script_name);
146
147	if (page) {
148		htmlf("?p=%s", page);
149		delim = "&amp;";
150	}
151	if (search) {
152		html(delim);
153		html("q=");
154		html_attr(search);
155		delim = "&amp;";
156	}
157	if (sort) {
158		html(delim);
159		html("s=");
160		html_attr(sort);
161		delim = "&amp;";
162	}
163	if (ofs) {
164		html(delim);
165		htmlf("ofs=%d", ofs);
166	}
167}
168
169static void site_link(const char *page, const char *name, const char *title,
170		      const char *class, const char *search, const char *sort, int ofs)
171{
172	html("<a");
173	if (title) {
174		html(" title='");
175		html_attr(title);
176		html("'");
177	}
178	if (class) {
179		html(" class='");
180		html_attr(class);
181		html("'");
182	}
183	html(" href='");
184	site_url(page, search, sort, ofs);
185	html("'>");
186	html_txt(name);
187	html("</a>");
188}
189
190void cgit_index_link(const char *name, const char *title, const char *class,
191		     const char *pattern, const char *sort, int ofs)
192{
193	site_link(NULL, name, title, class, pattern, sort, ofs);
194}
195
196static char *repolink(const char *title, const char *class, const char *page,
197		      const char *head, const char *path)
198{
199	char *delim = "?";
200
201	html("<a");
202	if (title) {
203		html(" title='");
204		html_attr(title);
205		html("'");
206	}
207	if (class) {
208		html(" class='");
209		html_attr(class);
210		html("'");
211	}
212	html(" href='");
213	if (ctx.cfg.virtual_root) {
214		html_url_path(ctx.cfg.virtual_root);
215		if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
216			html("/");
217		html_url_path(ctx.repo->url);
218		if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
219			html("/");
220		if (page) {
221			html_url_path(page);
222			html("/");
223			if (path)
224				html_url_path(path);
225		}
226	} else {
227		html(ctx.cfg.script_name);
228		html("?url=");
229		html_url_arg(ctx.repo->url);
230		if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
231			html("/");
232		if (page) {
233			html_url_arg(page);
234			html("/");
235			if (path)
236				html_url_arg(path);
237		}
238		delim = "&amp;";
239	}
240	if (head && strcmp(head, ctx.repo->defbranch)) {
241		html(delim);
242		html("h=");
243		html_url_arg(head);
244		delim = "&amp;";
245	}
246	return fmt("%s", delim);
247}
248
249static void reporevlink(const char *page, const char *name, const char *title,
250			const char *class, const char *head, const char *rev,
251			const char *path)
252{
253	char *delim;
254
255	delim = repolink(title, class, page, head, path);
256	if (rev && ctx.qry.head != NULL && strcmp(rev, ctx.qry.head)) {
257		html(delim);
258		html("id=");
259		html_url_arg(rev);
260	}
261	html("'>");
262	html_txt(name);
263	html("</a>");
264}
265
266void cgit_summary_link(const char *name, const char *title, const char *class,
267		       const char *head)
268{
269	reporevlink(NULL, name, title, class, head, NULL, NULL);
270}
271
272void cgit_tag_link(const char *name, const char *title, const char *class,
273		   const char *head, const char *rev)
274{
275	reporevlink("tag", name, title, class, head, rev, NULL);
276}
277
278void cgit_tree_link(const char *name, const char *title, const char *class,
279		    const char *head, const char *rev, const char *path)
280{
281	reporevlink("tree", name, title, class, head, rev, path);
282}
283
284void cgit_plain_link(const char *name, const char *title, const char *class,
285		     const char *head, const char *rev, const char *path)
286{
287	reporevlink("plain", name, title, class, head, rev, path);
288}
289
290void cgit_log_link(const char *name, const char *title, const char *class,
291		   const char *head, const char *rev, const char *path,
292		   int ofs, const char *grep, const char *pattern, int showmsg)
293{
294	char *delim;
295
296	delim = repolink(title, class, "log", head, path);
297	if (rev && ctx.qry.head && strcmp(rev, ctx.qry.head)) {
298		html(delim);
299		html("id=");
300		html_url_arg(rev);
301		delim = "&amp;";
302	}
303	if (grep && pattern) {
304		html(delim);
305		html("qt=");
306		html_url_arg(grep);
307		delim = "&amp;";
308		html(delim);
309		html("q=");
310		html_url_arg(pattern);
311	}
312	if (ofs > 0) {
313		html(delim);
314		html("ofs=");
315		htmlf("%d", ofs);
316		delim = "&amp;";
317	}
318	if (showmsg) {
319		html(delim);
320		html("showmsg=1");
321	}
322	html("'>");
323	html_txt(name);
324	html("</a>");
325}
326
327void cgit_commit_link(char *name, const char *title, const char *class,
328		      const char *head, const char *rev, const char *path,
329		      int toggle_ssdiff)
330{
331	if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
332		name[ctx.cfg.max_msg_len] = '\0';
333		name[ctx.cfg.max_msg_len - 1] = '.';
334		name[ctx.cfg.max_msg_len - 2] = '.';
335		name[ctx.cfg.max_msg_len - 3] = '.';
336	}
337
338	char *delim;
339
340	delim = repolink(title, class, "commit", head, path);
341	if (rev && ctx.qry.head && strcmp(rev, ctx.qry.head)) {
342		html(delim);
343		html("id=");
344		html_url_arg(rev);
345		delim = "&amp;";
346	}
347	if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
348		html(delim);
349		html("ss=1");
350		delim = "&amp;";
351	}
352	if (ctx.qry.context > 0 && ctx.qry.context != 3) {
353		html(delim);
354		html("context=");
355		htmlf("%d", ctx.qry.context);
356		delim = "&amp;";
357	}
358	if (ctx.qry.ignorews) {
359		html(delim);
360		html("ignorews=1");
361		delim = "&amp;";
362	}
363	html("'>");
364	if (name[0] != '\0')
365		html_txt(name);
366	else
367		html_txt("(no commit message)");
368	html("</a>");
369}
370
371void cgit_refs_link(const char *name, const char *title, const char *class,
372		    const char *head, const char *rev, const char *path)
373{
374	reporevlink("refs", name, title, class, head, rev, path);
375}
376
377void cgit_snapshot_link(const char *name, const char *title, const char *class,
378			const char *head, const char *rev,
379			const char *archivename)
380{
381	reporevlink("snapshot", name, title, class, head, rev, archivename);
382}
383
384void cgit_diff_link(const char *name, const char *title, const char *class,
385		    const char *head, const char *new_rev, const char *old_rev,
386		    const char *path, int toggle_ssdiff)
387{
388	char *delim;
389
390	delim = repolink(title, class, "diff", head, path);
391	if (new_rev && ctx.qry.head != NULL && strcmp(new_rev, ctx.qry.head)) {
392		html(delim);
393		html("id=");
394		html_url_arg(new_rev);
395		delim = "&amp;";
396	}
397	if (old_rev) {
398		html(delim);
399		html("id2=");
400		html_url_arg(old_rev);
401		delim = "&amp;";
402	}
403	if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
404		html(delim);
405		html("ss=1");
406		delim = "&amp;";
407	}
408	if (ctx.qry.context > 0 && ctx.qry.context != 3) {
409		html(delim);
410		html("context=");
411		htmlf("%d", ctx.qry.context);
412		delim = "&amp;";
413	}
414	if (ctx.qry.ignorews) {
415		html(delim);
416		html("ignorews=1");
417		delim = "&amp;";
418	}
419	html("'>");
420	html_txt(name);
421	html("</a>");
422}
423
424void cgit_patch_link(const char *name, const char *title, const char *class,
425		     const char *head, const char *rev, const char *path)
426{
427	reporevlink("patch", name, title, class, head, rev, path);
428}
429
430void cgit_stats_link(const char *name, const char *title, const char *class,
431		     const char *head, const char *path)
432{
433	reporevlink("stats", name, title, class, head, NULL, path);
434}
435
436void cgit_self_link(char *name, const char *title, const char *class,
437		    struct cgit_context *ctx)
438{
439	if (!strcmp(ctx->qry.page, "repolist"))
440		return cgit_index_link(name, title, class, ctx->qry.search, ctx->qry.sort,
441				       ctx->qry.ofs);
442	else if (!strcmp(ctx->qry.page, "summary"))
443		return cgit_summary_link(name, title, class, ctx->qry.head);
444	else if (!strcmp(ctx->qry.page, "tag"))
445		return cgit_tag_link(name, title, class, ctx->qry.head,
446				     ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL);
447	else if (!strcmp(ctx->qry.page, "tree"))
448		return cgit_tree_link(name, title, class, ctx->qry.head,
449				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
450				      ctx->qry.path);
451	else if (!strcmp(ctx->qry.page, "plain"))
452		return cgit_plain_link(name, title, class, ctx->qry.head,
453				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
454				      ctx->qry.path);
455	else if (!strcmp(ctx->qry.page, "log"))
456		return cgit_log_link(name, title, class, ctx->qry.head,
457				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
458				      ctx->qry.path, ctx->qry.ofs,
459				      ctx->qry.grep, ctx->qry.search,
460				      ctx->qry.showmsg);
461	else if (!strcmp(ctx->qry.page, "commit"))
462		return cgit_commit_link(name, title, class, ctx->qry.head,
463				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
464				      ctx->qry.path, 0);
465	else if (!strcmp(ctx->qry.page, "patch"))
466		return cgit_patch_link(name, title, class, ctx->qry.head,
467				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
468				      ctx->qry.path);
469	else if (!strcmp(ctx->qry.page, "refs"))
470		return cgit_refs_link(name, title, class, ctx->qry.head,
471				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
472				      ctx->qry.path);
473	else if (!strcmp(ctx->qry.page, "snapshot"))
474		return cgit_snapshot_link(name, title, class, ctx->qry.head,
475				      ctx->qry.has_sha1 ? ctx->qry.sha1 : NULL,
476				      ctx->qry.path);
477	else if (!strcmp(ctx->qry.page, "diff"))
478		return cgit_diff_link(name, title, class, ctx->qry.head,
479				      ctx->qry.sha1, ctx->qry.sha2,
480				      ctx->qry.path, 0);
481	else if (!strcmp(ctx->qry.page, "stats"))
482		return cgit_stats_link(name, title, class, ctx->qry.head,
483				      ctx->qry.path);
484
485	/* Don't known how to make link for this page */
486	repolink(title, class, ctx->qry.page, ctx->qry.head, ctx->qry.path);
487	html("><!-- cgit_self_link() doesn't know how to make link for page '");
488	html_txt(ctx->qry.page);
489	html("' -->");
490	html_txt(name);
491	html("</a>");
492}
493
494void cgit_object_link(struct object *obj)
495{
496	char *page, *shortrev, *fullrev, *name;
497
498	fullrev = sha1_to_hex(obj->sha1);
499	shortrev = xstrdup(fullrev);
500	shortrev[10] = '\0';
501	if (obj->type == OBJ_COMMIT) {
502                cgit_commit_link(fmt("commit %s...", shortrev), NULL, NULL,
503				 ctx.qry.head, fullrev, NULL, 0);
504		return;
505	} else if (obj->type == OBJ_TREE)
506		page = "tree";
507	else if (obj->type == OBJ_TAG)
508		page = "tag";
509	else
510		page = "blob";
511	name = fmt("%s %s...", typename(obj->type), shortrev);
512	reporevlink(page, name, NULL, NULL, ctx.qry.head, fullrev, NULL);
513}
514
515struct string_list_item *lookup_path(struct string_list *list,
516				     const char *path)
517{
518	struct string_list_item *item;
519
520	while (path && path[0]) {
521		if ((item = string_list_lookup(list, path)))
522			return item;
523		if (!(path = strchr(path, '/')))
524			break;
525		path++;
526	}
527	return NULL;
528}
529
530void cgit_submodule_link(const char *class, char *path, const char *rev)
531{
532	struct string_list *list;
533	struct string_list_item *item;
534	char tail, *dir;
535	size_t len;
536
537	tail = 0;
538	list = &ctx.repo->submodules;
539	item = lookup_path(list, path);
540	if (!item) {
541		len = strlen(path);
542		tail = path[len - 1];
543		if (tail == '/') {
544			path[len - 1] = 0;
545			item = lookup_path(list, path);
546		}
547	}
548	html("<a ");
549	if (class)
550		htmlf("class='%s' ", class);
551	html("href='");
552	if (item) {
553		html_attr(fmt(item->util, rev));
554	} else if (ctx.repo->module_link) {
555		dir = strrchr(path, '/');
556		if (dir)
557			dir++;
558		else
559			dir = path;
560		html_attr(fmt(ctx.repo->module_link, dir, rev));
561	} else {
562		html("#");
563	}
564	html("'>");
565	html_txt(path);
566	html("</a>");
567	if (item && tail)
568		path[len - 1] = tail;
569}
570
571void cgit_print_date(time_t secs, const char *format, int local_time)
572{
573	char buf[64];
574	struct tm *time;
575
576	if (!secs)
577		return;
578	if(local_time)
579		time = localtime(&secs);
580	else
581		time = gmtime(&secs);
582	strftime(buf, sizeof(buf)-1, format, time);
583	html_txt(buf);
584}
585
586void cgit_print_age(time_t t, time_t max_relative, const char *format)
587{
588	time_t now, secs;
589
590	if (!t)
591		return;
592	time(&now);
593	secs = now - t;
594
595	if (secs > max_relative && max_relative >= 0) {
596		cgit_print_date(t, format, ctx.cfg.local_time);
597		return;
598	}
599
600	if (secs < TM_HOUR * 2) {
601		htmlf("<span class='age-mins'>%.0f min.</span>",
602		      secs * 1.0 / TM_MIN);
603		return;
604	}
605	if (secs < TM_DAY * 2) {
606		htmlf("<span class='age-hours'>%.0f hours</span>",
607		      secs * 1.0 / TM_HOUR);
608		return;
609	}
610	if (secs < TM_WEEK * 2) {
611		htmlf("<span class='age-days'>%.0f days</span>",
612		      secs * 1.0 / TM_DAY);
613		return;
614	}
615	if (secs < TM_MONTH * 2) {
616		htmlf("<span class='age-weeks'>%.0f weeks</span>",
617		      secs * 1.0 / TM_WEEK);
618		return;
619	}
620	if (secs < TM_YEAR * 2) {
621		htmlf("<span class='age-months'>%.0f months</span>",
622		      secs * 1.0 / TM_MONTH);
623		return;
624	}
625	htmlf("<span class='age-years'>%.0f years</span>",
626	      secs * 1.0 / TM_YEAR);
627}
628
629void cgit_print_http_headers(struct cgit_context *ctx)
630{
631	if (ctx->env.no_http && !strcmp(ctx->env.no_http, "1"))
632		return;
633
634	if (ctx->page.status)
635		htmlf("Status: %d %s\n", ctx->page.status, ctx->page.statusmsg);
636	if (ctx->page.mimetype && ctx->page.charset)
637		htmlf("Content-Type: %s; charset=%s\n", ctx->page.mimetype,
638		      ctx->page.charset);
639	else if (ctx->page.mimetype)
640		htmlf("Content-Type: %s\n", ctx->page.mimetype);
641	if (ctx->page.size)
642		htmlf("Content-Length: %zd\n", ctx->page.size);
643	if (ctx->page.filename)
644		htmlf("Content-Disposition: inline; filename=\"%s\"\n",
645		      ctx->page.filename);
646	htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
647	htmlf("Expires: %s\n", http_date(ctx->page.expires));
648	if (ctx->page.etag)
649		htmlf("ETag: \"%s\"\n", ctx->page.etag);
650	html("\n");
651	if (ctx->env.request_method && !strcmp(ctx->env.request_method, "HEAD"))
652		exit(0);
653}
654
655void cgit_print_docstart(struct cgit_context *ctx)
656{
657	if (ctx->cfg.embedded) {
658		if (ctx->cfg.header)
659			html_include(ctx->cfg.header);
660		return;
661	}
662
663	char *host = cgit_hosturl();
664	html(cgit_doctype);
665	html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
666	html("<head>\n");
667	html("<title>");
668	html_txt(ctx->page.title);
669	html("</title>\n");
670	htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
671	if (ctx->cfg.robots && *ctx->cfg.robots)
672		htmlf("<meta name='robots' content='%s'/>\n", ctx->cfg.robots);
673	html("<link rel='stylesheet' type='text/css' href='");
674	html_attr(ctx->cfg.css);
675	html("'/>\n");
676	if (ctx->cfg.favicon) {
677		html("<link rel='shortcut icon' href='");
678		html_attr(ctx->cfg.favicon);
679		html("'/>\n");
680	}
681	if (host && ctx->repo && ctx->qry.head) {
682		html("<link rel='alternate' title='Atom feed' href='");
683		html(cgit_httpscheme());
684		html_attr(cgit_hosturl());
685		html_attr(cgit_fileurl(ctx->repo->url, "atom", ctx->qry.vpath,
686				       fmt("h=%s", ctx->qry.head)));
687		html("' type='application/atom+xml'/>\n");
688	}
689	if (ctx->cfg.head_include)
690		html_include(ctx->cfg.head_include);
691	html("</head>\n");
692	html("<body>\n");
693	if (ctx->cfg.header)
694		html_include(ctx->cfg.header);
695}
696
697void cgit_print_docend()
698{
699	html("</div> <!-- class=content -->\n");
700	if (ctx.cfg.embedded) {
701		html("</div> <!-- id=cgit -->\n");
702		if (ctx.cfg.footer)
703			html_include(ctx.cfg.footer);
704		return;
705	}
706	if (ctx.cfg.footer)
707		html_include(ctx.cfg.footer);
708	else {
709		htmlf("<div class='footer'>generated  by cgit %s at ",
710			cgit_version);
711		cgit_print_date(time(NULL), FMT_LONGDATE, ctx.cfg.local_time);
712		html("</div>\n");
713	}
714	html("</div> <!-- id=cgit -->\n");
715	html("</body>\n</html>\n");
716}
717
718int print_branch_option(const char *refname, const unsigned char *sha1,
719			int flags, void *cb_data)
720{
721	char *name = (char *)refname;
722	html_option(name, name, ctx.qry.head);
723	return 0;
724}
725
726int print_archive_ref(const char *refname, const unsigned char *sha1,
727		       int flags, void *cb_data)
728{
729	struct tag *tag;
730	struct taginfo *info;
731	struct object *obj;
732	char buf[256], *url;
733	unsigned char fileid[20];
734	int *header = (int *)cb_data;
735
736	if (prefixcmp(refname, "refs/archives"))
737		return 0;
738	strncpy(buf, refname+14, sizeof(buf));
739	obj = parse_object(sha1);
740	if (!obj)
741		return 1;
742	if (obj->type == OBJ_TAG) {
743		tag = lookup_tag(sha1);
744		if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag)))
745			return 0;
746		hashcpy(fileid, tag->tagged->sha1);
747	} else if (obj->type != OBJ_BLOB) {
748		return 0;
749	} else {
750		hashcpy(fileid, sha1);
751	}
752	if (!*header) {
753		html("<h1>download</h1>\n");
754		*header = 1;
755	}
756	url = cgit_pageurl(ctx.qry.repo, "blob",
757			   fmt("id=%s&amp;path=%s", sha1_to_hex(fileid),
758			       buf));
759	html_link_open(url, NULL, "menu");
760	html_txt(strlpart(buf, 20));
761	html_link_close();
762	return 0;
763}
764
765void cgit_add_hidden_formfields(int incl_head, int incl_search,
766				const char *page)
767{
768	char *url;
769
770	if (!ctx.cfg.virtual_root) {
771		url = fmt("%s/%s", ctx.qry.repo, page);
772		if (ctx.qry.vpath)
773			url = fmt("%s/%s", url, ctx.qry.vpath);
774		html_hidden("url", url);
775	}
776
777	if (incl_head && ctx.qry.head && ctx.repo->defbranch &&
778	    strcmp(ctx.qry.head, ctx.repo->defbranch))
779		html_hidden("h", ctx.qry.head);
780
781	if (ctx.qry.sha1)
782		html_hidden("id", ctx.qry.sha1);
783	if (ctx.qry.sha2)
784		html_hidden("id2", ctx.qry.sha2);
785	if (ctx.qry.showmsg)
786		html_hidden("showmsg", "1");
787
788	if (incl_search) {
789		if (ctx.qry.grep)
790			html_hidden("qt", ctx.qry.grep);
791		if (ctx.qry.search)
792			html_hidden("q", ctx.qry.search);
793	}
794}
795
796static const char *hc(struct cgit_context *ctx, const char *page)
797{
798	return strcmp(ctx->qry.page, page) ? NULL : "active";
799}
800
801static void cgit_print_path_crumbs(struct cgit_context *ctx, char *path)
802{
803	char *old_path = ctx->qry.path;
804	char *p = path, *q, *end = path + strlen(path);
805
806	ctx->qry.path = NULL;
807	cgit_self_link("root", NULL, NULL, ctx);
808	ctx->qry.path = p = path;
809	while (p < end) {
810		if (!(q = strchr(p, '/')))
811			q = end;
812		*q = '\0';
813		html_txt("/");
814		cgit_self_link(p, NULL, NULL, ctx);
815		if (q < end)
816			*q = '/';
817		p = q + 1;
818	}
819	ctx->qry.path = old_path;
820}
821
822static void print_header(struct cgit_context *ctx)
823{
824	char *logo = NULL, *logo_link = NULL;
825
826	html("<table id='header'>\n");
827	html("<tr>\n");
828
829	if (ctx->repo && ctx->repo->logo && *ctx->repo->logo)
830		logo = ctx->repo->logo;
831	else
832		logo = ctx->cfg.logo;
833	if (ctx->repo && ctx->repo->logo_link && *ctx->repo->logo_link)
834		logo_link = ctx->repo->logo_link;
835	else
836		logo_link = ctx->cfg.logo_link;
837	if (logo && *logo) {
838		html("<td class='logo' rowspan='2'><a href='");
839		if (logo_link && *logo_link)
840			html_attr(logo_link);
841		else
842			html_attr(cgit_rooturl());
843		html("'><img src='");
844		html_attr(logo);
845		html("' alt='cgit logo'/></a></td>\n");
846	}
847
848	html("<td class='main'>");
849	if (ctx->repo) {
850		cgit_index_link("index", NULL, NULL, NULL, NULL, 0);
851		html(" : ");
852		cgit_summary_link(ctx->repo->name, ctx->repo->name, NULL, NULL);
853		html("</td><td class='form'>");
854		html("<form method='get' action=''>\n");
855		cgit_add_hidden_formfields(0, 1, ctx->qry.page);
856		html("<select name='h' onchange='this.form.submit();'>\n");
857		for_each_branch_ref(print_branch_option, ctx->qry.head);
858		html("</select> ");
859		html("<input type='submit' name='' value='switch'/>");
860		html("</form>");
861	} else
862		html_txt(ctx->cfg.root_title);
863	html("</td></tr>\n");
864
865	html("<tr><td class='sub'>");
866	if (ctx->repo) {
867		html_txt(ctx->repo->desc);
868		html("</td><td class='sub right'>");
869		html_txt(ctx->repo->owner);
870	} else {
871		if (ctx->cfg.root_desc)
872			html_txt(ctx->cfg.root_desc);
873		else if (ctx->cfg.index_info)
874			html_include(ctx->cfg.index_info);
875	}
876	html("</td></tr></table>\n");
877}
878
879void cgit_print_pageheader(struct cgit_context *ctx)
880{
881	html("<div id='cgit'>");
882	if (!ctx->cfg.noheader)
883		print_header(ctx);
884
885	html("<table class='tabs'><tr><td>\n");
886	if (ctx->repo) {
887		cgit_summary_link("summary", NULL, hc(ctx, "summary"),
888				  ctx->qry.head);
889		cgit_refs_link("refs", NULL, hc(ctx, "refs"), ctx->qry.head,
890			       ctx->qry.sha1, NULL);
891		cgit_log_link("log", NULL, hc(ctx, "log"), ctx->qry.head,
892			      NULL, ctx->qry.vpath, 0, NULL, NULL,
893			      ctx->qry.showmsg);
894		cgit_tree_link("tree", NULL, hc(ctx, "tree"), ctx->qry.head,
895			       ctx->qry.sha1, ctx->qry.vpath);
896		cgit_commit_link("commit", NULL, hc(ctx, "commit"),
897				 ctx->qry.head, ctx->qry.sha1, ctx->qry.vpath, 0);
898		cgit_diff_link("diff", NULL, hc(ctx, "diff"), ctx->qry.head,
899			       ctx->qry.sha1, ctx->qry.sha2, ctx->qry.vpath, 0);
900		if (ctx->repo->max_stats)
901			cgit_stats_link("stats", NULL, hc(ctx, "stats"),
902					ctx->qry.head, ctx->qry.vpath);
903		if (ctx->repo->readme)
904			reporevlink("about", "about", NULL,
905				    hc(ctx, "about"), ctx->qry.head, NULL,
906				    NULL);
907		html("</td><td class='form'>");
908		html("<form class='right' method='get' action='");
909		if (ctx->cfg.virtual_root)
910			html_url_path(cgit_fileurl(ctx->qry.repo, "log",
911						   ctx->qry.vpath, NULL));
912		html("'>\n");
913		cgit_add_hidden_formfields(1, 0, "log");
914		html("<select name='qt'>\n");
915		html_option("grep", "log msg", ctx->qry.grep);
916		html_option("author", "author", ctx->qry.grep);
917		html_option("committer", "committer", ctx->qry.grep);
918		html_option("range", "range", ctx->qry.grep);
919		html("</select>\n");
920		html("<input class='txt' type='text' size='10' name='q' value='");
921		html_attr(ctx->qry.search);
922		html("'/>\n");
923		html("<input type='submit' value='search'/>\n");
924		html("</form>\n");
925	} else {
926		site_link(NULL, "index", NULL, hc(ctx, "repolist"), NULL, NULL, 0);
927		if (ctx->cfg.root_readme)
928			site_link("about", "about", NULL, hc(ctx, "about"),
929				  NULL, NULL, 0);
930		html("</td><td class='form'>");
931		html("<form method='get' action='");
932		html_attr(cgit_rooturl());
933		html("'>\n");
934		html("<input type='text' name='q' size='10' value='");
935		html_attr(ctx->qry.search);
936		html("'/>\n");
937		html("<input type='submit' value='search'/>\n");
938		html("</form>");
939	}
940	html("</td></tr></table>\n");
941	if (ctx->qry.vpath) {
942		html("<div class='path'>");
943		html("path: ");
944		cgit_print_path_crumbs(ctx, ctx->qry.vpath);
945		html("</div>");
946	}
947	html("<div class='content'>");
948}
949
950void cgit_print_filemode(unsigned short mode)
951{
952	if (S_ISDIR(mode))
953		html("d");
954	else if (S_ISLNK(mode))
955		html("l");
956	else if (S_ISGITLINK(mode))
957		html("m");
958	else
959		html("-");
960	html_fileperm(mode >> 6);
961	html_fileperm(mode >> 3);
962	html_fileperm(mode);
963}
964
965void cgit_print_snapshot_links(const char *repo, const char *head,
966			       const char *hex, int snapshots)
967{
968	const struct cgit_snapshot_format* f;
969	char *prefix;
970    	char *filename;
971	unsigned char sha1[20];
972
973	if (get_sha1(fmt("refs/tags/%s", hex), sha1) == 0 &&
974	    (hex[0] == 'v' || hex[0] == 'V') && isdigit(hex[1]))
975		hex++;
976	prefix = xstrdup(fmt("%s-%s", cgit_repobasename(repo), hex));
977	for (f = cgit_snapshot_formats; f->suffix; f++) {
978		if (!(snapshots & f->bit))
979			continue;
980		filename = fmt("%s%s", prefix, f->suffix);
981		cgit_snapshot_link(filename, NULL, NULL, NULL, NULL, filename);
982		html("<br/>");
983	}
984}