ui-plain.c (view raw)
1/* ui-plain.c: functions for output of plain blobs by path
2 *
3 * Copyright (C) 2008 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
13int match_baselen;
14int match;
15
16static void print_object(const unsigned char *sha1, const char *path)
17{
18 enum object_type type;
19 char *buf, *ext;
20 unsigned long size;
21 struct string_list_item *mime;
22
23 type = sha1_object_info(sha1, &size);
24 if (type == OBJ_BAD) {
25 html_status(404, "Not found", 0);
26 return;
27 }
28
29 buf = read_sha1_file(sha1, &type, &size);
30 if (!buf) {
31 html_status(404, "Not found", 0);
32 return;
33 }
34 ctx.page.mimetype = NULL;
35 ext = strrchr(path, '.');
36 if (ext && *(++ext)) {
37 mime = string_list_lookup(ext, &ctx.cfg.mimetypes);
38 if (mime)
39 ctx.page.mimetype = (char *)mime->util;
40 }
41 if (!ctx.page.mimetype) {
42 if (buffer_is_binary(buf, size))
43 ctx.page.mimetype = "application/octet-stream";
44 else
45 ctx.page.mimetype = "text/plain";
46 }
47 ctx.page.filename = fmt("%s", path);
48 ctx.page.size = size;
49 ctx.page.etag = sha1_to_hex(sha1);
50 cgit_print_http_headers(&ctx);
51 html_raw(buf, size);
52 match = 1;
53}
54
55static void print_dir(const unsigned char *sha1, const char *path,
56 const char *base)
57{
58 char *fullpath;
59 if (path[0] || base[0])
60 fullpath = fmt("/%s%s/", base, path);
61 else
62 fullpath = "/";
63 ctx.page.etag = sha1_to_hex(sha1);
64 cgit_print_http_headers(&ctx);
65 htmlf("<html><head><title>%s</title></head>\n<body>\n"
66 " <h2>%s</h2>\n <ul>\n", fullpath, fullpath);
67 if (path[0] || base[0])
68 html(" <li><a href=\"../\">../</a></li>\n");
69 match = 2;
70}
71
72static void print_dir_entry(const unsigned char *sha1, const char *path,
73 unsigned mode)
74{
75 const char *sep = "";
76 if (S_ISDIR(mode))
77 sep = "/";
78 htmlf(" <li><a href=\"%s%s\">%s%s</a></li>\n", path, sep, path, sep);
79 match = 2;
80}
81
82static void print_dir_tail(void)
83{
84 html(" </ul>\n</body></html>\n");
85}
86
87static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
88 const char *pathname, unsigned mode, int stage,
89 void *cbdata)
90{
91 if (baselen == match_baselen) {
92 if (S_ISREG(mode))
93 print_object(sha1, pathname);
94 else if (S_ISDIR(mode)) {
95 print_dir(sha1, pathname, base);
96 return READ_TREE_RECURSIVE;
97 }
98 }
99 else if (baselen > match_baselen)
100 print_dir_entry(sha1, pathname, mode);
101 else if (S_ISDIR(mode))
102 return READ_TREE_RECURSIVE;
103
104 return 0;
105}
106
107static int basedir_len(const char *path)
108{
109 char *p = strrchr(path, '/');
110 if (p)
111 return p - path + 1;
112 return 0;
113}
114
115void cgit_print_plain(struct cgit_context *ctx)
116{
117 const char *rev = ctx->qry.sha1;
118 unsigned char sha1[20];
119 struct commit *commit;
120 const char *paths[] = {ctx->qry.path, NULL};
121
122 if (!rev)
123 rev = ctx->qry.head;
124
125 if (get_sha1(rev, sha1)) {
126 html_status(404, "Not found", 0);
127 return;
128 }
129 commit = lookup_commit_reference(sha1);
130 if (!commit || parse_commit(commit)) {
131 html_status(404, "Not found", 0);
132 return;
133 }
134 if (!paths[0]) {
135 paths[0] = "";
136 match_baselen = -1;
137 print_dir(commit->tree->object.sha1, "", "");
138 }
139 else
140 match_baselen = basedir_len(paths[0]);
141 read_tree_recursive(commit->tree, "", 0, 0, paths, walk_tree, NULL);
142 if (!match)
143 html_status(404, "Not found", 0);
144 else if (match == 2)
145 print_dir_tail();
146}