1/* ui-summary.c: functions for generating repo summary page
  2 *
  3 * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
  4 *
  5 * Licensed under GNU General Public License v2
  6 *   (see COPYING for full license text)
  7 */
  8
  9#include "cgit.h"
 10#include "ui-summary.h"
 11#include "html.h"
 12#include "ui-blob.h"
 13#include "ui-log.h"
 14#include "ui-plain.h"
 15#include "ui-refs.h"
 16#include "ui-shared.h"
 17
 18static int urls;
 19
 20static void print_url(const char *url)
 21{
 22	int columns = 3;
 23
 24	if (ctx.repo->enable_log_filecount)
 25		columns++;
 26	if (ctx.repo->enable_log_linecount)
 27		columns++;
 28
 29	if (urls++ == 0) {
 30		htmlf("<tr class='nohover'><td colspan='%d'>&nbsp;</td></tr>", columns);
 31		htmlf("<tr class='nohover'><th class='left' colspan='%d'>Clone</th></tr>\n", columns);
 32	}
 33
 34	htmlf("<tr><td colspan='%d'><a rel='vcs-git' href='", columns);
 35	html_url_path(url);
 36	html("' title='");
 37	html_attr(ctx.repo->name);
 38	html(" Git repository'>");
 39	html_txt(url);
 40	html("</a></td></tr>\n");
 41}
 42
 43void cgit_print_summary(void)
 44{
 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	cgit_print_layout_start();
 53	html("<table summary='repository info' class='list nowrap'>");
 54	cgit_print_branches(ctx.cfg.summary_branches);
 55	htmlf("<tr class='nohover'><td colspan='%d'>&nbsp;</td></tr>", columns);
 56	cgit_print_tags(ctx.cfg.summary_tags);
 57	if (ctx.cfg.summary_log > 0) {
 58		htmlf("<tr class='nohover'><td colspan='%d'>&nbsp;</td></tr>", columns);
 59		cgit_print_log(ctx.qry.head, 0, ctx.cfg.summary_log, NULL,
 60			       NULL, NULL, 0, 0, 0);
 61	}
 62	urls = 0;
 63	cgit_add_clone_urls(print_url);
 64	html("</table>");
 65	cgit_print_layout_end();
 66}
 67
 68/* The caller must free the return value. */
 69static char* append_readme_path(const char *filename, const char *ref, const char *path)
 70{
 71	char *file, *base_dir, *full_path, *resolved_base = NULL, *resolved_full = NULL;
 72	/* If a subpath is specified for the about page, make it relative
 73	 * to the directory containing the configured readme. */
 74
 75	file = xstrdup(filename);
 76	base_dir = dirname(file);
 77	if (!strcmp(base_dir, ".") || !strcmp(base_dir, "..")) {
 78		if (!ref) {
 79			free(file);
 80			return NULL;
 81		}
 82		full_path = xstrdup(path);
 83	} else
 84		full_path = fmtalloc("%s/%s", base_dir, path);
 85
 86	if (!ref) {
 87		resolved_base = realpath(base_dir, NULL);
 88		resolved_full = realpath(full_path, NULL);
 89		if (!resolved_base || !resolved_full || !starts_with(resolved_full, resolved_base)) {
 90			free(full_path);
 91			full_path = NULL;
 92		}
 93	}
 94
 95	free(file);
 96	free(resolved_base);
 97	free(resolved_full);
 98
 99	return full_path;
100}
101
102void cgit_print_repo_readme(char *path)
103{
104	char *filename, *ref, *mimetype;
105	int free_filename = 0;
106
107	mimetype = get_mimetype_for_filename(path);
108	if (mimetype && (!strncmp(mimetype, "image/", 6) || !strncmp(mimetype, "video/", 6))) {
109		ctx.page.mimetype = mimetype;
110		ctx.page.charset = NULL;
111		cgit_print_plain();
112		free(mimetype);
113		return;
114	}
115	free(mimetype);
116
117	cgit_print_layout_start();
118	if (ctx.repo->readme.nr == 0)
119		goto done;
120
121	filename = ctx.repo->readme.items[0].string;
122	ref = ctx.repo->readme.items[0].util;
123
124	if (path) {
125		free_filename = 1;
126		filename = append_readme_path(filename, ref, path);
127		if (!filename)
128			goto done;
129	}
130
131	/* Print the calculated readme, either from the git repo or from the
132	 * filesystem, while applying the about-filter.
133	 */
134	html("<div id='summary'>");
135	cgit_open_filter(ctx.repo->about_filter, filename);
136	if (ref)
137		cgit_print_file(filename, ref, 1);
138	else
139		html_include(filename);
140	cgit_close_filter(ctx.repo->about_filter);
141
142	html("</div>");
143	if (free_filename)
144		free(filename);
145
146done:
147	cgit_print_layout_end();
148}