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-rw-r--r--cgit.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/cgit.c b/cgit.c
index 4b91829..6597529 100644
--- a/cgit.c
+++ b/cgit.c
@@ -1,254 +1,256 @@
1/* cgit.c: cgi for the git scm 1/* cgit.c: cgi for the git scm
2 * 2 *
3 * Copyright (C) 2006 Lars Hjemli 3 * Copyright (C) 2006 Lars Hjemli
4 * 4 *
5 * Licensed under GNU General Public License v2 5 * Licensed under GNU General Public License v2
6 * (see COPYING for full license text) 6 * (see COPYING for full license text)
7 */ 7 */
8 8
9#include "cgit.h" 9#include "cgit.h"
10 10
11static int cgit_prepare_cache(struct cacheitem *item) 11static int cgit_prepare_cache(struct cacheitem *item)
12{ 12{
13 if (!cgit_repo && cgit_query_repo) { 13 if (!cgit_repo && cgit_query_repo) {
14 char *title = fmt("%s - %s", cgit_root_title, "Bad request"); 14 char *title = fmt("%s - %s", cgit_root_title, "Bad request");
15 cgit_print_docstart(title, item); 15 cgit_print_docstart(title, item);
16 cgit_print_pageheader(title, 0); 16 cgit_print_pageheader(title, 0);
17 cgit_print_error(fmt("Unknown repo: %s", cgit_query_repo)); 17 cgit_print_error(fmt("Unknown repo: %s", cgit_query_repo));
18 cgit_print_docend(); 18 cgit_print_docend();
19 return 0; 19 return 0;
20 } 20 }
21 21
22 if (!cgit_repo) { 22 if (!cgit_repo) {
23 item->name = xstrdup(fmt("%s/index.html", cgit_cache_root)); 23 item->name = xstrdup(fmt("%s/index.html", cgit_cache_root));
24 item->ttl = cgit_cache_root_ttl; 24 item->ttl = cgit_cache_root_ttl;
25 return 1; 25 return 1;
26 } 26 }
27 27
28 if (!cgit_cmd) { 28 if (!cgit_cmd) {
29 item->name = xstrdup(fmt("%s/%s/index.%s.html", cgit_cache_root, 29 item->name = xstrdup(fmt("%s/%s/index.%s.html", cgit_cache_root,
30 cache_safe_filename(cgit_repo->url), 30 cache_safe_filename(cgit_repo->url),
31 cache_safe_filename(cgit_querystring))); 31 cache_safe_filename(cgit_querystring)));
32 item->ttl = cgit_cache_repo_ttl; 32 item->ttl = cgit_cache_repo_ttl;
33 } else { 33 } else {
34 item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root, 34 item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root,
35 cache_safe_filename(cgit_repo->url), 35 cache_safe_filename(cgit_repo->url),
36 cgit_query_page, 36 cgit_query_page,
37 cache_safe_filename(cgit_querystring))); 37 cache_safe_filename(cgit_querystring)));
38 if (cgit_query_has_symref) 38 if (cgit_query_has_symref)
39 item->ttl = cgit_cache_dynamic_ttl; 39 item->ttl = cgit_cache_dynamic_ttl;
40 else if (cgit_query_has_sha1) 40 else if (cgit_query_has_sha1)
41 item->ttl = cgit_cache_static_ttl; 41 item->ttl = cgit_cache_static_ttl;
42 else 42 else
43 item->ttl = cgit_cache_repo_ttl; 43 item->ttl = cgit_cache_repo_ttl;
44 } 44 }
45 return 1; 45 return 1;
46} 46}
47 47
48static void cgit_print_repo_page(struct cacheitem *item) 48static void cgit_print_repo_page(struct cacheitem *item)
49{ 49{
50 char *title; 50 char *title;
51 int show_search; 51 int show_search;
52 52
53 if (!cgit_query_head) 53 if (!cgit_query_head)
54 cgit_query_head = cgit_repo->defbranch; 54 cgit_query_head = cgit_repo->defbranch;
55 55
56 if (chdir(cgit_repo->path)) { 56 if (chdir(cgit_repo->path)) {
57 title = fmt("%s - %s", cgit_root_title, "Bad request"); 57 title = fmt("%s - %s", cgit_root_title, "Bad request");
58 cgit_print_docstart(title, item); 58 cgit_print_docstart(title, item);
59 cgit_print_pageheader(title, 0); 59 cgit_print_pageheader(title, 0);
60 cgit_print_error(fmt("Unable to scan repository: %s", 60 cgit_print_error(fmt("Unable to scan repository: %s",
61 strerror(errno))); 61 strerror(errno)));
62 cgit_print_docend(); 62 cgit_print_docend();
63 return; 63 return;
64 } 64 }
65 65
66 title = fmt("%s - %s", cgit_repo->name, cgit_repo->desc); 66 title = fmt("%s - %s", cgit_repo->name, cgit_repo->desc);
67 show_search = 0; 67 show_search = 0;
68 setenv("GIT_DIR", cgit_repo->path, 1); 68 setenv("GIT_DIR", cgit_repo->path, 1);
69 69
70 if ((cgit_cmd == CMD_SNAPSHOT) && cgit_repo->snapshots) { 70 if ((cgit_cmd == CMD_SNAPSHOT) && cgit_repo->snapshots) {
71 cgit_print_snapshot(item, cgit_query_sha1, "zip", 71 cgit_print_snapshot(item, cgit_query_sha1,
72 cgit_repo->url, cgit_query_name); 72 cgit_repobasename(cgit_repo->url),
73 cgit_query_name,
74 cgit_repo->snapshots );
73 return; 75 return;
74 } 76 }
75 77
76 if (cgit_cmd == CMD_BLOB) { 78 if (cgit_cmd == CMD_BLOB) {
77 cgit_print_blob(item, cgit_query_sha1, cgit_query_path); 79 cgit_print_blob(item, cgit_query_sha1, cgit_query_path);
78 return; 80 return;
79 } 81 }
80 82
81 show_search = (cgit_cmd == CMD_LOG); 83 show_search = (cgit_cmd == CMD_LOG);
82 cgit_print_docstart(title, item); 84 cgit_print_docstart(title, item);
83 if (!cgit_cmd) { 85 if (!cgit_cmd) {
84 cgit_print_pageheader("summary", show_search); 86 cgit_print_pageheader("summary", show_search);
85 cgit_print_summary(); 87 cgit_print_summary();
86 cgit_print_docend(); 88 cgit_print_docend();
87 return; 89 return;
88 } 90 }
89 91
90 cgit_print_pageheader(cgit_query_page, show_search); 92 cgit_print_pageheader(cgit_query_page, show_search);
91 93
92 switch(cgit_cmd) { 94 switch(cgit_cmd) {
93 case CMD_LOG: 95 case CMD_LOG:
94 cgit_print_log(cgit_query_sha1, cgit_query_ofs, 96 cgit_print_log(cgit_query_sha1, cgit_query_ofs,
95 cgit_max_commit_count, cgit_query_search, 97 cgit_max_commit_count, cgit_query_search,
96 cgit_query_path, 1); 98 cgit_query_path, 1);
97 break; 99 break;
98 case CMD_TREE: 100 case CMD_TREE:
99 cgit_print_tree(cgit_query_sha1, cgit_query_path); 101 cgit_print_tree(cgit_query_sha1, cgit_query_path);
100 break; 102 break;
101 case CMD_COMMIT: 103 case CMD_COMMIT:
102 cgit_print_commit(cgit_query_sha1); 104 cgit_print_commit(cgit_query_sha1);
103 break; 105 break;
104 case CMD_TAG: 106 case CMD_TAG:
105 cgit_print_tag(cgit_query_sha1); 107 cgit_print_tag(cgit_query_sha1);
106 break; 108 break;
107 case CMD_DIFF: 109 case CMD_DIFF:
108 cgit_print_diff(cgit_query_sha1, cgit_query_sha2); 110 cgit_print_diff(cgit_query_sha1, cgit_query_sha2);
109 break; 111 break;
110 default: 112 default:
111 cgit_print_error("Invalid request"); 113 cgit_print_error("Invalid request");
112 } 114 }
113 cgit_print_docend(); 115 cgit_print_docend();
114} 116}
115 117
116static void cgit_fill_cache(struct cacheitem *item, int use_cache) 118static void cgit_fill_cache(struct cacheitem *item, int use_cache)
117{ 119{
118 static char buf[PATH_MAX]; 120 static char buf[PATH_MAX];
119 int stdout2; 121 int stdout2;
120 122
121 getcwd(buf, sizeof(buf)); 123 getcwd(buf, sizeof(buf));
122 item->st.st_mtime = time(NULL); 124 item->st.st_mtime = time(NULL);
123 125
124 if (use_cache) { 126 if (use_cache) {
125 stdout2 = chk_positive(dup(STDOUT_FILENO), 127 stdout2 = chk_positive(dup(STDOUT_FILENO),
126 "Preserving STDOUT"); 128 "Preserving STDOUT");
127 chk_zero(close(STDOUT_FILENO), "Closing STDOUT"); 129 chk_zero(close(STDOUT_FILENO), "Closing STDOUT");
128 chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)"); 130 chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)");
129 } 131 }
130 132
131 if (cgit_repo) 133 if (cgit_repo)
132 cgit_print_repo_page(item); 134 cgit_print_repo_page(item);
133 else 135 else
134 cgit_print_repolist(item); 136 cgit_print_repolist(item);
135 137
136 if (use_cache) { 138 if (use_cache) {
137 chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT"); 139 chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT");
138 chk_positive(dup2(stdout2, STDOUT_FILENO), 140 chk_positive(dup2(stdout2, STDOUT_FILENO),
139 "Restoring original STDOUT"); 141 "Restoring original STDOUT");
140 chk_zero(close(stdout2), "Closing temporary STDOUT"); 142 chk_zero(close(stdout2), "Closing temporary STDOUT");
141 } 143 }
142 144
143 chdir(buf); 145 chdir(buf);
144} 146}
145 147
146static void cgit_check_cache(struct cacheitem *item) 148static void cgit_check_cache(struct cacheitem *item)
147{ 149{
148 int i = 0; 150 int i = 0;
149 151
150 top: 152 top:
151 if (++i > cgit_max_lock_attempts) { 153 if (++i > cgit_max_lock_attempts) {
152 die("cgit_refresh_cache: unable to lock %s: %s", 154 die("cgit_refresh_cache: unable to lock %s: %s",
153 item->name, strerror(errno)); 155 item->name, strerror(errno));
154 } 156 }
155 if (!cache_exist(item)) { 157 if (!cache_exist(item)) {
156 if (!cache_lock(item)) { 158 if (!cache_lock(item)) {
157 sleep(1); 159 sleep(1);
158 goto top; 160 goto top;
159 } 161 }
160 if (!cache_exist(item)) { 162 if (!cache_exist(item)) {
161 cgit_fill_cache(item, 1); 163 cgit_fill_cache(item, 1);
162 cache_unlock(item); 164 cache_unlock(item);
163 } else { 165 } else {
164 cache_cancel_lock(item); 166 cache_cancel_lock(item);
165 } 167 }
166 } else if (cache_expired(item) && cache_lock(item)) { 168 } else if (cache_expired(item) && cache_lock(item)) {
167 if (cache_expired(item)) { 169 if (cache_expired(item)) {
168 cgit_fill_cache(item, 1); 170 cgit_fill_cache(item, 1);
169 cache_unlock(item); 171 cache_unlock(item);
170 } else { 172 } else {
171 cache_cancel_lock(item); 173 cache_cancel_lock(item);
172 } 174 }
173 } 175 }
174} 176}
175 177
176static void cgit_print_cache(struct cacheitem *item) 178static void cgit_print_cache(struct cacheitem *item)
177{ 179{
178 static char buf[4096]; 180 static char buf[4096];
179 ssize_t i; 181 ssize_t i;
180 182
181 int fd = open(item->name, O_RDONLY); 183 int fd = open(item->name, O_RDONLY);
182 if (fd<0) 184 if (fd<0)
183 die("Unable to open cached file %s", item->name); 185 die("Unable to open cached file %s", item->name);
184 186
185 while((i=read(fd, buf, sizeof(buf))) > 0) 187 while((i=read(fd, buf, sizeof(buf))) > 0)
186 write(STDOUT_FILENO, buf, i); 188 write(STDOUT_FILENO, buf, i);
187 189
188 close(fd); 190 close(fd);
189} 191}
190 192
191static void cgit_parse_args(int argc, const char **argv) 193static void cgit_parse_args(int argc, const char **argv)
192{ 194{
193 int i; 195 int i;
194 196
195 for (i = 1; i < argc; i++) { 197 for (i = 1; i < argc; i++) {
196 if (!strncmp(argv[i], "--cache=", 8)) { 198 if (!strncmp(argv[i], "--cache=", 8)) {
197 cgit_cache_root = xstrdup(argv[i]+8); 199 cgit_cache_root = xstrdup(argv[i]+8);
198 } 200 }
199 if (!strcmp(argv[i], "--nocache")) { 201 if (!strcmp(argv[i], "--nocache")) {
200 cgit_nocache = 1; 202 cgit_nocache = 1;
201 } 203 }
202 if (!strncmp(argv[i], "--query=", 8)) { 204 if (!strncmp(argv[i], "--query=", 8)) {
203 cgit_querystring = xstrdup(argv[i]+8); 205 cgit_querystring = xstrdup(argv[i]+8);
204 } 206 }
205 if (!strncmp(argv[i], "--repo=", 7)) { 207 if (!strncmp(argv[i], "--repo=", 7)) {
206 cgit_query_repo = xstrdup(argv[i]+7); 208 cgit_query_repo = xstrdup(argv[i]+7);
207 } 209 }
208 if (!strncmp(argv[i], "--page=", 7)) { 210 if (!strncmp(argv[i], "--page=", 7)) {
209 cgit_query_page = xstrdup(argv[i]+7); 211 cgit_query_page = xstrdup(argv[i]+7);
210 } 212 }
211 if (!strncmp(argv[i], "--head=", 7)) { 213 if (!strncmp(argv[i], "--head=", 7)) {
212 cgit_query_head = xstrdup(argv[i]+7); 214 cgit_query_head = xstrdup(argv[i]+7);
213 cgit_query_has_symref = 1; 215 cgit_query_has_symref = 1;
214 } 216 }
215 if (!strncmp(argv[i], "--sha1=", 7)) { 217 if (!strncmp(argv[i], "--sha1=", 7)) {
216 cgit_query_sha1 = xstrdup(argv[i]+7); 218 cgit_query_sha1 = xstrdup(argv[i]+7);
217 cgit_query_has_sha1 = 1; 219 cgit_query_has_sha1 = 1;
218 } 220 }
219 if (!strncmp(argv[i], "--ofs=", 6)) { 221 if (!strncmp(argv[i], "--ofs=", 6)) {
220 cgit_query_ofs = atoi(argv[i]+6); 222 cgit_query_ofs = atoi(argv[i]+6);
221 } 223 }
222 } 224 }
223} 225}
224 226
225int main(int argc, const char **argv) 227int main(int argc, const char **argv)
226{ 228{
227 struct cacheitem item; 229 struct cacheitem item;
228 const char *cgit_config_env = getenv("CGIT_CONFIG"); 230 const char *cgit_config_env = getenv("CGIT_CONFIG");
229 231
230 htmlfd = STDOUT_FILENO; 232 htmlfd = STDOUT_FILENO;
231 item.st.st_mtime = time(NULL); 233 item.st.st_mtime = time(NULL);
232 cgit_repolist.length = 0; 234 cgit_repolist.length = 0;
233 cgit_repolist.count = 0; 235 cgit_repolist.count = 0;
234 cgit_repolist.repos = NULL; 236 cgit_repolist.repos = NULL;
235 237
236 cgit_read_config(cgit_config_env ? cgit_config_env : CGIT_CONFIG, 238 cgit_read_config(cgit_config_env ? cgit_config_env : CGIT_CONFIG,
237 cgit_global_config_cb); 239 cgit_global_config_cb);
238 cgit_repo = NULL; 240 cgit_repo = NULL;
239 if (getenv("SCRIPT_NAME")) 241 if (getenv("SCRIPT_NAME"))
240 cgit_script_name = xstrdup(getenv("SCRIPT_NAME")); 242 cgit_script_name = xstrdup(getenv("SCRIPT_NAME"));
241 if (getenv("QUERY_STRING")) 243 if (getenv("QUERY_STRING"))
242 cgit_querystring = xstrdup(getenv("QUERY_STRING")); 244 cgit_querystring = xstrdup(getenv("QUERY_STRING"));
243 cgit_parse_args(argc, argv); 245 cgit_parse_args(argc, argv);
244 cgit_parse_query(cgit_querystring, cgit_querystring_cb); 246 cgit_parse_query(cgit_querystring, cgit_querystring_cb);
245 if (!cgit_prepare_cache(&item)) 247 if (!cgit_prepare_cache(&item))
246 return 0; 248 return 0;
247 if (cgit_nocache) { 249 if (cgit_nocache) {
248 cgit_fill_cache(&item, 0); 250 cgit_fill_cache(&item, 0);
249 } else { 251 } else {
250 cgit_check_cache(&item); 252 cgit_check_cache(&item);
251 cgit_print_cache(&item); 253 cgit_print_cache(&item);
252 } 254 }
253 return 0; 255 return 0;
254} 256}