1/* ui-tree.c: functions for tree output
  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 "html.h"
 11#include "ui-shared.h"
 12
 13char *curr_rev;
 14char *match_path;
 15int header = 0;
 16
 17static void print_object(const unsigned char *sha1, char *path)
 18{
 19	enum object_type type;
 20	char *buf;
 21	unsigned long size, lineno, start, idx;
 22	const char *linefmt = "<tr><td class='no'><a id='n%1$d' name='n%1$d' href='#n%1$d'>%1$d</a></td><td class='txt'>";
 23
 24	type = sha1_object_info(sha1, &size);
 25	if (type == OBJ_BAD) {
 26		cgit_print_error(fmt("Bad object name: %s",
 27				     sha1_to_hex(sha1)));
 28		return;
 29	}
 30
 31	buf = read_sha1_file(sha1, &type, &size);
 32	if (!buf) {
 33		cgit_print_error(fmt("Error reading object %s",
 34				     sha1_to_hex(sha1)));
 35		return;
 36	}
 37
 38	html(" blob: <a href='");
 39	html_attr(cgit_pageurl(ctx.qry.repo, "blob",
 40			       fmt("id=%s&path=%s", sha1_to_hex(sha1), path)));
 41	htmlf("'>%s</a>",sha1_to_hex(sha1));
 42
 43	html("<table summary='blob content' class='blob'>\n");
 44	idx = 0;
 45	start = 0;
 46	lineno = 0;
 47	while(idx < size) {
 48		if (buf[idx] == '\n') {
 49			buf[idx] = '\0';
 50			htmlf(linefmt, ++lineno);
 51			html_txt(buf + start);
 52			html("</td></tr>\n");
 53			start = idx + 1;
 54		}
 55		idx++;
 56	}
 57	htmlf(linefmt, ++lineno);
 58	html_txt(buf + start);
 59	html("</td></tr>\n");
 60	html("</table>\n");
 61}
 62
 63
 64static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 65		   const char *pathname, unsigned int mode, int stage)
 66{
 67	char *name;
 68	char *fullpath;
 69	enum object_type type;
 70	unsigned long size = 0;
 71
 72	name = xstrdup(pathname);
 73	fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
 74		       ctx.qry.path ? "/" : "", name);
 75
 76	if (!S_ISGITLINK(mode)) {
 77		type = sha1_object_info(sha1, &size);
 78		if (type == OBJ_BAD) {
 79			htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
 80			      name,
 81			      sha1_to_hex(sha1));
 82			return 0;
 83		}
 84	}
 85
 86	html("<tr><td class='ls-mode'>");
 87	cgit_print_filemode(mode);
 88	html("</td><td>");
 89	if (S_ISGITLINK(mode)) {
 90		htmlf("<a class='ls-mod' href='");
 91		html_attr(fmt(ctx.repo->module_link,
 92			      name,
 93			      sha1_to_hex(sha1)));
 94		html("'>");
 95		html_txt(name);
 96		html("</a>");
 97	} else if (S_ISDIR(mode)) {
 98		cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
 99			       curr_rev, fullpath);
100	} else {
101		cgit_tree_link(name, NULL, "ls-blob", ctx.qry.head,
102			       curr_rev, fullpath);
103	}
104	htmlf("</td><td class='ls-size'>%li</td>", size);
105
106	html("<td>");
107	cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
108		      fullpath, 0, NULL, NULL);
109	html("</td></tr>\n");
110	free(name);
111	return 0;
112}
113
114static void ls_head()
115{
116	html("<table summary='tree listing' class='list'>\n");
117	html("<tr class='nohover'>");
118	html("<th class='left'>Mode</th>");
119	html("<th class='left'>Name</th>");
120	html("<th class='right'>Size</th>");
121	html("<th/>");
122	html("</tr>\n");
123	header = 1;
124}
125
126static void ls_tail()
127{
128	if (!header)
129		return;
130	html("</table>\n");
131	header = 0;
132}
133
134static void ls_tree(const unsigned char *sha1, char *path)
135{
136	struct tree *tree;
137
138	tree = parse_tree_indirect(sha1);
139	if (!tree) {
140		cgit_print_error(fmt("Not a tree object: %s",
141				     sha1_to_hex(sha1)));
142		return;
143	}
144
145	ls_head();
146	read_tree_recursive(tree, "", 0, 1, NULL, ls_item);
147	ls_tail();
148}
149
150
151static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
152		     const char *pathname, unsigned mode, int stage)
153{
154	static int state;
155	static char buffer[PATH_MAX];
156	char *url;
157
158	if (state == 0) {
159		memcpy(buffer, base, baselen);
160		strcpy(buffer+baselen, pathname);
161		url = cgit_pageurl(ctx.qry.repo, "tree",
162				   fmt("h=%s&amp;path=%s", curr_rev, buffer));
163		html("/");
164		cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
165			       curr_rev, buffer);
166
167		if (strcmp(match_path, buffer))
168			return READ_TREE_RECURSIVE;
169
170		if (S_ISDIR(mode)) {
171			state = 1;
172			ls_head();
173			return READ_TREE_RECURSIVE;
174		} else {
175			print_object(sha1, buffer);
176			return 0;
177		}
178	}
179	ls_item(sha1, base, baselen, pathname, mode, stage);
180	return 0;
181}
182
183
184/*
185 * Show a tree or a blob
186 *   rev:  the commit pointing at the root tree object
187 *   path: path to tree or blob
188 */
189void cgit_print_tree(const char *rev, char *path)
190{
191	unsigned char sha1[20];
192	struct commit *commit;
193	const char *paths[] = {path, NULL};
194
195	if (!rev)
196		rev = ctx.qry.head;
197
198	curr_rev = xstrdup(rev);
199	if (get_sha1(rev, sha1)) {
200		cgit_print_error(fmt("Invalid revision name: %s", rev));
201		return;
202	}
203	commit = lookup_commit_reference(sha1);
204	if (!commit || parse_commit(commit)) {
205		cgit_print_error(fmt("Invalid commit reference: %s", rev));
206		return;
207	}
208
209	html("path: <a href='");
210	html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
211	html("'>root</a>");
212
213	if (path == NULL) {
214		ls_tree(commit->tree->object.sha1, NULL);
215		return;
216	}
217
218	match_path = path;
219	read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree);
220	ls_tail();
221}