1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
|
/* ui-plain.c: functions for output of plain blobs by path
*
* Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include <stdio.h>
#include "cgit.h"
#include "ui-plain.h"
#include "html.h"
#include "ui-shared.h"
struct walk_tree_context {
int match_baselen;
int match;
};
static char *get_mimetype_from_file(const char *filename, const char *ext)
{
static const char *delimiters;
char *result;
FILE *fd;
char line[1024];
char *mimetype;
char *token;
if (!filename)
return NULL;
fd = fopen(filename, "r");
if (!fd)
return NULL;
delimiters = " \t\r\n";
result = NULL;
/* loop over all lines in the file */
while (!result && fgets(line, sizeof(line), fd)) {
mimetype = strtok(line, delimiters);
/* skip empty lines and comment lines */
if (!mimetype || (mimetype[0] == '#'))
continue;
/* loop over all extensions of mimetype */
while ((token = strtok(NULL, delimiters))) {
if (!strcasecmp(ext, token)) {
result = xstrdup(mimetype);
break;
}
}
}
fclose(fd);
return result;
}
static int print_object(const unsigned char *sha1, const char *path)
{
enum object_type type;
char *buf, *ext;
unsigned long size;
struct string_list_item *mime;
int freemime;
type = sha1_object_info(sha1, &size);
if (type == OBJ_BAD) {
html_status(404, "Not found", 0);
return 0;
}
buf = read_sha1_file(sha1, &type, &size);
if (!buf) {
html_status(404, "Not found", 0);
return 0;
}
ctx.page.mimetype = NULL;
ext = strrchr(path, '.');
freemime = 0;
if (ext && *(++ext)) {
mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
if (mime) {
ctx.page.mimetype = (char *)mime->util;
ctx.page.charset = NULL;
} else {
ctx.page.mimetype = get_mimetype_from_file(ctx.cfg.mimetype_file, ext);
if (ctx.page.mimetype) {
freemime = 1;
ctx.page.charset = NULL;
}
}
}
if (!ctx.page.mimetype) {
if (buffer_is_binary(buf, size)) {
ctx.page.mimetype = "application/octet-stream";
ctx.page.charset = NULL;
} else {
ctx.page.mimetype = "text/plain";
}
}
ctx.page.filename = path;
ctx.page.size = size;
ctx.page.etag = sha1_to_hex(sha1);
cgit_print_http_headers();
html_raw(buf, size);
/* If we allocated this, then casting away const is safe. */
if (freemime)
free((char*) ctx.page.mimetype);
return 1;
}
static char *buildpath(const char *base, int baselen, const char *path)
{
if (path[0])
return fmtalloc("%.*s%s/", baselen, base, path);
else
return fmtalloc("%.*s/", baselen, base);
}
static void print_dir(const unsigned char *sha1, const char *base,
int baselen, const char *path)
{
char *fullpath, *slash;
size_t len;
fullpath = buildpath(base, baselen, path);
slash = (fullpath[0] == '/' ? "" : "/");
ctx.page.etag = sha1_to_hex(sha1);
cgit_print_http_headers();
htmlf("<html><head><title>%s", slash);
html_txt(fullpath);
htmlf("</title></head>\n<body>\n<h2>%s", slash);
html_txt(fullpath);
html("</h2>\n<ul>\n");
len = strlen(fullpath);
if (len > 1) {
fullpath[len - 1] = 0;
slash = strrchr(fullpath, '/');
if (slash)
*(slash + 1) = 0;
else
fullpath = NULL;
html("<li>");
cgit_plain_link("../", NULL, NULL, ctx.qry.head, ctx.qry.sha1,
fullpath);
html("</li>\n");
}
free(fullpath);
}
static void print_dir_entry(const unsigned char *sha1, const char *base,
int baselen, const char *path, unsigned mode)
{
char *fullpath;
fullpath = buildpath(base, baselen, path);
if (!S_ISDIR(mode) && !S_ISGITLINK(mode))
fullpath[strlen(fullpath) - 1] = 0;
html(" <li>");
if (S_ISGITLINK(mode)) {
cgit_submodule_link(NULL, fullpath, sha1_to_hex(sha1));
} else
cgit_plain_link(path, NULL, NULL, ctx.qry.head, ctx.qry.sha1,
fullpath);
html("</li>\n");
free(fullpath);
}
static void print_dir_tail(void)
{
html(" </ul>\n</body></html>\n");
}
static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
const char *pathname, unsigned mode, int stage,
void *cbdata)
{
struct walk_tree_context *walk_tree_ctx = cbdata;
if (baselen == walk_tree_ctx->match_baselen) {
if (S_ISREG(mode)) {
if (print_object(sha1, pathname))
walk_tree_ctx->match = 1;
} else if (S_ISDIR(mode)) {
print_dir(sha1, base, baselen, pathname);
walk_tree_ctx->match = 2;
return READ_TREE_RECURSIVE;
}
} else if (baselen > walk_tree_ctx->match_baselen) {
print_dir_entry(sha1, base, baselen, pathname, mode);
walk_tree_ctx->match = 2;
} else if (S_ISDIR(mode)) {
return READ_TREE_RECURSIVE;
}
return 0;
}
static int basedir_len(const char *path)
{
char *p = strrchr(path, '/');
if (p)
return p - path + 1;
return 0;
}
void cgit_print_plain(void)
{
const char *rev = ctx.qry.sha1;
unsigned char sha1[20];
struct commit *commit;
struct pathspec_item path_items = {
.match = ctx.qry.path,
.len = ctx.qry.path ? strlen(ctx.qry.path) : 0
};
struct pathspec paths = {
.nr = 1,
.items = &path_items
};
struct walk_tree_context walk_tree_ctx = {
.match = 0
};
if (!rev)
rev = ctx.qry.head;
if (get_sha1(rev, sha1)) {
html_status(404, "Not found", 0);
return;
}
commit = lookup_commit_reference(sha1);
if (!commit || parse_commit(commit)) {
html_status(404, "Not found", 0);
return;
}
if (!path_items.match) {
path_items.match = "";
walk_tree_ctx.match_baselen = -1;
print_dir(commit->tree->object.sha1, "", 0, "");
walk_tree_ctx.match = 2;
}
else
walk_tree_ctx.match_baselen = basedir_len(path_items.match);
read_tree_recursive(commit->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
if (!walk_tree_ctx.match)
html_status(404, "Not found", 0);
else if (walk_tree_ctx.match == 2)
print_dir_tail();
}
|
