1/* ui-summary.c: functions for generating repo summary page
  2 *
  3 * Copyright (C) 2006 Lars Hjemli
  4 * Copyright (C) 2010 Jason A. Donenfeld <Jason@zx2c4.com>
  5 *
  6 * Licensed under GNU General Public License v2
  7 *   (see COPYING for full license text)
  8 */
  9
 10#include "cgit.h"
 11#include "ui-summary.h"
 12#include "html.h"
 13#include "ui-log.h"
 14#include "ui-refs.h"
 15#include "ui-blob.h"
 16
 17static void print_url(char *base, char *suffix)
 18{
 19	int columns = 3;
 20	struct strbuf basebuf = STRBUF_INIT;
 21
 22	if (ctx.repo->enable_log_filecount)
 23		columns++;
 24	if (ctx.repo->enable_log_linecount)
 25		columns++;
 26
 27	if (!base || !*base)
 28		return;
 29	if (suffix && *suffix) {
 30		strbuf_addf(&basebuf, "%s/%s", base, suffix);
 31		base = basebuf.buf;
 32	}
 33	htmlf("<tr><td colspan='%d'><a href='", columns);
 34	html_url_path(base);
 35	html("'>");
 36	html_txt(base);
 37	html("</a></td></tr>\n");
 38	strbuf_release(&basebuf);
 39}
 40
 41static void print_urls(char *txt, char *suffix)
 42{
 43	char *h = txt, *t, c;
 44	int urls = 0;
 45	int columns = 3;
 46
 47	if (ctx.repo->enable_log_filecount)
 48		columns++;
 49	if (ctx.repo->enable_log_linecount)
 50		columns++;
 51
 52
 53	while (h && *h) {
 54		while (h && *h == ' ')
 55			h++;
 56		if (!*h)
 57			break;
 58		t = h;
 59		while (t && *t && *t != ' ')
 60			t++;
 61		c = *t;
 62		*t = 0;
 63		if (urls++ == 0) {
 64			htmlf("<tr class='nohover'><td colspan='%d'>&nbsp;</td></tr>", columns);
 65			htmlf("<tr><th class='left' colspan='%d'>Clone</th></tr>\n", columns);
 66		}
 67		print_url(h, suffix);
 68		*t = c;
 69		h = t;
 70	}
 71}
 72
 73void cgit_print_summary()
 74{
 75	int columns = 3;
 76
 77	if (ctx.repo->enable_log_filecount)
 78		columns++;
 79	if (ctx.repo->enable_log_linecount)
 80		columns++;
 81
 82	html("<table summary='repository info' class='list nowrap'>");
 83	cgit_print_branches(ctx.cfg.summary_branches);
 84	htmlf("<tr class='nohover'><td colspan='%d'>&nbsp;</td></tr>", columns);
 85	cgit_print_tags(ctx.cfg.summary_tags);
 86	if (ctx.cfg.summary_log > 0) {
 87		htmlf("<tr class='nohover'><td colspan='%d'>&nbsp;</td></tr>", columns);
 88		cgit_print_log(ctx.qry.head, 0, ctx.cfg.summary_log, NULL,
 89			       NULL, NULL, 0, 0, 0);
 90	}
 91	if (ctx.repo->clone_url)
 92		print_urls(expand_macros(ctx.repo->clone_url), NULL);
 93	else if (ctx.cfg.clone_prefix)
 94		print_urls(ctx.cfg.clone_prefix, ctx.repo->url);
 95	html("</table>");
 96}
 97
 98/* The caller must free filename and ref after calling this. */
 99void cgit_parse_readme(const char *readme, const char *path, char **filename, char **ref, struct cgit_repo *repo)
100{
101	const char *slash, *colon;
102	char *resolved_base, *resolved_full;
103
104	*filename = NULL;
105	*ref = NULL;
106
107	if (!readme || !(*readme))
108		return;
109
110	/* Check if the readme is tracked in the git repo. */
111	colon = strchr(readme, ':');
112	if (colon && strlen(colon) > 1) {
113		/* If it starts with a colon, we want to use
114		 * the default branch */
115		if (colon == readme && repo->defbranch)
116			*ref = xstrdup(repo->defbranch);
117		else
118			*ref = xstrndup(readme, colon - readme);
119		readme = colon + 1;
120	}
121
122	/* Prepend repo path to relative readme path unless tracked. */
123	if (!(*ref) && *readme != '/')
124		readme = fmtalloc("%s/%s", repo->path, readme);
125
126	/* If a subpath is specified for the about page, make it relative
127	 * to the directory containing the configured readme. */
128	if (path) {
129		slash = strrchr(readme, '/');
130		if (!slash) {
131			if (!colon)
132				return;
133			slash = colon;
134		}
135		*filename = xmalloc(slash - readme + 1 + strlen(path) + 1);
136		strncpy(*filename, readme, slash - readme + 1);
137		if (!(*ref))
138			resolved_base = realpath(*filename, NULL);
139		strcpy(*filename + (slash - readme + 1), path);
140		if (!(*ref))
141			resolved_full = realpath(*filename, NULL);
142		if (!(*ref) && (!resolved_base || !resolved_full || strstr(resolved_full, resolved_base) != resolved_full)) {
143			free(*filename);
144			*filename = NULL;
145		}
146		if (!(*ref)) {
147			free(resolved_base);
148			free(resolved_full);
149		}
150	} else
151		*filename = xstrdup(readme);
152}
153
154void cgit_print_repo_readme(char *path)
155{
156	char *filename, *ref;
157	cgit_parse_readme(ctx.repo->readme, path, &filename, &ref, ctx.repo);
158
159	if (!filename)
160		return;
161
162	/* Print the calculated readme, either from the git repo or from the
163	 * filesystem, while applying the about-filter.
164	 */
165	html("<div id='summary'>");
166	if (ctx.repo->about_filter) {
167		ctx.repo->about_filter->argv[1] = filename;
168		cgit_open_filter(ctx.repo->about_filter);
169	}
170	if (ref)
171		cgit_print_file(filename, ref);
172	else
173		html_include(filename);
174	if (ctx.repo->about_filter) {
175		cgit_close_filter(ctx.repo->about_filter);
176		ctx.repo->about_filter->argv[1] = NULL;
177	}
178	html("</div>");
179	free(filename);
180	free(ref);
181}