summaryrefslogtreecommitdiffabout
path: root/cgit.c
Unidiff
Diffstat (limited to 'cgit.c') (more/less context) (ignore whitespace changes)
-rw-r--r--cgit.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/cgit.c b/cgit.c
index 3d85a08..9e63d18 100644
--- a/cgit.c
+++ b/cgit.c
@@ -1,259 +1,260 @@
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
11const char cgit_version[] = CGIT_VERSION; 11const char cgit_version[] = CGIT_VERSION;
12 12
13 13
14static struct repoinfo *cgit_get_repoinfo(char *url) 14static struct repoinfo *cgit_get_repoinfo(char *url)
15{ 15{
16 int i; 16 int i;
17 struct repoinfo *repo; 17 struct repoinfo *repo;
18 18
19 for (i=0; i<cgit_repolist.count; i++) { 19 for (i=0; i<cgit_repolist.count; i++) {
20 repo = &cgit_repolist.repos[i]; 20 repo = &cgit_repolist.repos[i];
21 if (!strcmp(repo->url, url)) 21 if (!strcmp(repo->url, url))
22 return repo; 22 return repo;
23 } 23 }
24 return NULL; 24 return NULL;
25} 25}
26 26
27 27
28static int cgit_prepare_cache(struct cacheitem *item) 28static int cgit_prepare_cache(struct cacheitem *item)
29{ 29{
30 if (!cgit_query_repo) { 30 if (!cgit_query_repo) {
31 item->name = xstrdup(fmt("%s/index.html", cgit_cache_root)); 31 item->name = xstrdup(fmt("%s/index.html", cgit_cache_root));
32 item->ttl = cgit_cache_root_ttl; 32 item->ttl = cgit_cache_root_ttl;
33 return 1; 33 return 1;
34 } 34 }
35 cgit_repo = cgit_get_repoinfo(cgit_query_repo); 35 cgit_repo = cgit_get_repoinfo(cgit_query_repo);
36 if (!cgit_repo) { 36 if (!cgit_repo) {
37 char *title = fmt("%s - %s", cgit_root_title, "Bad request"); 37 char *title = fmt("%s - %s", cgit_root_title, "Bad request");
38 cgit_print_docstart(title, item); 38 cgit_print_docstart(title, item);
39 cgit_print_pageheader(title, 0); 39 cgit_print_pageheader(title, 0);
40 cgit_print_error(fmt("Unknown repo: %s", cgit_query_repo)); 40 cgit_print_error(fmt("Unknown repo: %s", cgit_query_repo));
41 cgit_print_docend(); 41 cgit_print_docend();
42 return 0; 42 return 0;
43 } 43 }
44 44
45 if (!cgit_query_page) { 45 if (!cgit_query_page) {
46 item->name = xstrdup(fmt("%s/%s/index.html", cgit_cache_root, 46 item->name = xstrdup(fmt("%s/%s/index.html", cgit_cache_root,
47 cgit_repo->url)); 47 cgit_repo->url));
48 item->ttl = cgit_cache_repo_ttl; 48 item->ttl = cgit_cache_repo_ttl;
49 } else { 49 } else {
50 item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root, 50 item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root,
51 cgit_repo->url, cgit_query_page, 51 cgit_repo->url, cgit_query_page,
52 cache_safe_filename(cgit_querystring))); 52 cache_safe_filename(cgit_querystring)));
53 if (cgit_query_has_symref) 53 if (cgit_query_has_symref)
54 item->ttl = cgit_cache_dynamic_ttl; 54 item->ttl = cgit_cache_dynamic_ttl;
55 else if (cgit_query_has_sha1) 55 else if (cgit_query_has_sha1)
56 item->ttl = cgit_cache_static_ttl; 56 item->ttl = cgit_cache_static_ttl;
57 else 57 else
58 item->ttl = cgit_cache_repo_ttl; 58 item->ttl = cgit_cache_repo_ttl;
59 } 59 }
60 return 1; 60 return 1;
61} 61}
62 62
63static void cgit_print_repo_page(struct cacheitem *item) 63static void cgit_print_repo_page(struct cacheitem *item)
64{ 64{
65 char *title; 65 char *title;
66 int show_search; 66 int show_search;
67 67
68 if (chdir(cgit_repo->path)) { 68 if (chdir(cgit_repo->path)) {
69 title = fmt("%s - %s", cgit_root_title, "Bad request"); 69 title = fmt("%s - %s", cgit_root_title, "Bad request");
70 cgit_print_docstart(title, item); 70 cgit_print_docstart(title, item);
71 cgit_print_pageheader(title, 0); 71 cgit_print_pageheader(title, 0);
72 cgit_print_error(fmt("Unable to scan repository: %s", 72 cgit_print_error(fmt("Unable to scan repository: %s",
73 strerror(errno))); 73 strerror(errno)));
74 cgit_print_docend(); 74 cgit_print_docend();
75 return; 75 return;
76 } 76 }
77 77
78 title = fmt("%s - %s", cgit_repo->name, cgit_repo->desc); 78 title = fmt("%s - %s", cgit_repo->name, cgit_repo->desc);
79 show_search = 0; 79 show_search = 0;
80 setenv("GIT_DIR", cgit_repo->path, 1); 80 setenv("GIT_DIR", cgit_repo->path, 1);
81 81
82 if (cgit_query_page) { 82 if (cgit_query_page) {
83 if (cgit_repo->snapshots && !strcmp(cgit_query_page, "snapshot")) { 83 if (cgit_repo->snapshots && !strcmp(cgit_query_page, "snapshot")) {
84 cgit_print_snapshot(item, cgit_query_sha1, "zip", 84 cgit_print_snapshot(item, cgit_query_sha1, "zip",
85 cgit_repo->url, cgit_query_name); 85 cgit_repo->url, cgit_query_name);
86 return; 86 return;
87 } 87 }
88 if (!strcmp(cgit_query_page, "blob")) { 88 if (!strcmp(cgit_query_page, "blob")) {
89 cgit_print_blob(item, cgit_query_sha1, cgit_query_path); 89 cgit_print_blob(item, cgit_query_sha1, cgit_query_path);
90 return; 90 return;
91 } 91 }
92 } 92 }
93 93
94 if (cgit_query_page && !strcmp(cgit_query_page, "log")) 94 if (cgit_query_page && !strcmp(cgit_query_page, "log"))
95 show_search = 1; 95 show_search = 1;
96 96
97 cgit_print_docstart(title, item); 97 cgit_print_docstart(title, item);
98 98
99 99
100 if (!cgit_query_page) { 100 if (!cgit_query_page) {
101 cgit_print_pageheader("summary", show_search); 101 cgit_print_pageheader("summary", show_search);
102 cgit_print_summary(); 102 cgit_print_summary();
103 cgit_print_docend(); 103 cgit_print_docend();
104 return; 104 return;
105 } 105 }
106 106
107 cgit_print_pageheader(cgit_query_page, show_search); 107 cgit_print_pageheader(cgit_query_page, show_search);
108 108
109 if (!strcmp(cgit_query_page, "log")) { 109 if (!strcmp(cgit_query_page, "log")) {
110 cgit_print_log(cgit_query_head, cgit_query_ofs, 110 cgit_print_log(cgit_query_head, cgit_query_ofs,
111 cgit_max_commit_count, cgit_query_search); 111 cgit_max_commit_count, cgit_query_search,
112 cgit_query_path);
112 } else if (!strcmp(cgit_query_page, "tree")) { 113 } else if (!strcmp(cgit_query_page, "tree")) {
113 cgit_print_tree(cgit_query_sha1, cgit_query_path); 114 cgit_print_tree(cgit_query_head, cgit_query_sha1, cgit_query_path);
114 } else if (!strcmp(cgit_query_page, "commit")) { 115 } else if (!strcmp(cgit_query_page, "commit")) {
115 cgit_print_commit(cgit_query_sha1); 116 cgit_print_commit(cgit_query_sha1);
116 } else if (!strcmp(cgit_query_page, "view")) { 117 } else if (!strcmp(cgit_query_page, "view")) {
117 cgit_print_view(cgit_query_sha1, cgit_query_path); 118 cgit_print_view(cgit_query_sha1, cgit_query_path);
118 } else if (!strcmp(cgit_query_page, "diff")) { 119 } else if (!strcmp(cgit_query_page, "diff")) {
119 cgit_print_diff(cgit_query_sha1, cgit_query_sha2, cgit_query_path); 120 cgit_print_diff(cgit_query_sha1, cgit_query_sha2, cgit_query_path);
120 } else { 121 } else {
121 cgit_print_error("Invalid request"); 122 cgit_print_error("Invalid request");
122 } 123 }
123 cgit_print_docend(); 124 cgit_print_docend();
124} 125}
125 126
126static void cgit_fill_cache(struct cacheitem *item, int use_cache) 127static void cgit_fill_cache(struct cacheitem *item, int use_cache)
127{ 128{
128 static char buf[PATH_MAX]; 129 static char buf[PATH_MAX];
129 int stdout2; 130 int stdout2;
130 131
131 getcwd(buf, sizeof(buf)); 132 getcwd(buf, sizeof(buf));
132 item->st.st_mtime = time(NULL); 133 item->st.st_mtime = time(NULL);
133 134
134 if (use_cache) { 135 if (use_cache) {
135 stdout2 = chk_positive(dup(STDOUT_FILENO), 136 stdout2 = chk_positive(dup(STDOUT_FILENO),
136 "Preserving STDOUT"); 137 "Preserving STDOUT");
137 chk_zero(close(STDOUT_FILENO), "Closing STDOUT"); 138 chk_zero(close(STDOUT_FILENO), "Closing STDOUT");
138 chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)"); 139 chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)");
139 } 140 }
140 141
141 if (cgit_query_repo) 142 if (cgit_query_repo)
142 cgit_print_repo_page(item); 143 cgit_print_repo_page(item);
143 else 144 else
144 cgit_print_repolist(item); 145 cgit_print_repolist(item);
145 146
146 if (use_cache) { 147 if (use_cache) {
147 chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT"); 148 chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT");
148 chk_positive(dup2(stdout2, STDOUT_FILENO), 149 chk_positive(dup2(stdout2, STDOUT_FILENO),
149 "Restoring original STDOUT"); 150 "Restoring original STDOUT");
150 chk_zero(close(stdout2), "Closing temporary STDOUT"); 151 chk_zero(close(stdout2), "Closing temporary STDOUT");
151 } 152 }
152 153
153 chdir(buf); 154 chdir(buf);
154} 155}
155 156
156static void cgit_check_cache(struct cacheitem *item) 157static void cgit_check_cache(struct cacheitem *item)
157{ 158{
158 int i = 0; 159 int i = 0;
159 160
160 top: 161 top:
161 if (++i > cgit_max_lock_attempts) { 162 if (++i > cgit_max_lock_attempts) {
162 die("cgit_refresh_cache: unable to lock %s: %s", 163 die("cgit_refresh_cache: unable to lock %s: %s",
163 item->name, strerror(errno)); 164 item->name, strerror(errno));
164 } 165 }
165 if (!cache_exist(item)) { 166 if (!cache_exist(item)) {
166 if (!cache_lock(item)) { 167 if (!cache_lock(item)) {
167 sleep(1); 168 sleep(1);
168 goto top; 169 goto top;
169 } 170 }
170 if (!cache_exist(item)) { 171 if (!cache_exist(item)) {
171 cgit_fill_cache(item, 1); 172 cgit_fill_cache(item, 1);
172 cache_unlock(item); 173 cache_unlock(item);
173 } else { 174 } else {
174 cache_cancel_lock(item); 175 cache_cancel_lock(item);
175 } 176 }
176 } else if (cache_expired(item) && cache_lock(item)) { 177 } else if (cache_expired(item) && cache_lock(item)) {
177 if (cache_expired(item)) { 178 if (cache_expired(item)) {
178 cgit_fill_cache(item, 1); 179 cgit_fill_cache(item, 1);
179 cache_unlock(item); 180 cache_unlock(item);
180 } else { 181 } else {
181 cache_cancel_lock(item); 182 cache_cancel_lock(item);
182 } 183 }
183 } 184 }
184} 185}
185 186
186static void cgit_print_cache(struct cacheitem *item) 187static void cgit_print_cache(struct cacheitem *item)
187{ 188{
188 static char buf[4096]; 189 static char buf[4096];
189 ssize_t i; 190 ssize_t i;
190 191
191 int fd = open(item->name, O_RDONLY); 192 int fd = open(item->name, O_RDONLY);
192 if (fd<0) 193 if (fd<0)
193 die("Unable to open cached file %s", item->name); 194 die("Unable to open cached file %s", item->name);
194 195
195 while((i=read(fd, buf, sizeof(buf))) > 0) 196 while((i=read(fd, buf, sizeof(buf))) > 0)
196 write(STDOUT_FILENO, buf, i); 197 write(STDOUT_FILENO, buf, i);
197 198
198 close(fd); 199 close(fd);
199} 200}
200 201
201static void cgit_parse_args(int argc, const char **argv) 202static void cgit_parse_args(int argc, const char **argv)
202{ 203{
203 int i; 204 int i;
204 205
205 for (i = 1; i < argc; i++) { 206 for (i = 1; i < argc; i++) {
206 if (!strncmp(argv[i], "--cache=", 8)) { 207 if (!strncmp(argv[i], "--cache=", 8)) {
207 cgit_cache_root = xstrdup(argv[i]+8); 208 cgit_cache_root = xstrdup(argv[i]+8);
208 } 209 }
209 if (!strcmp(argv[i], "--nocache")) { 210 if (!strcmp(argv[i], "--nocache")) {
210 cgit_nocache = 1; 211 cgit_nocache = 1;
211 } 212 }
212 if (!strncmp(argv[i], "--query=", 8)) { 213 if (!strncmp(argv[i], "--query=", 8)) {
213 cgit_querystring = xstrdup(argv[i]+8); 214 cgit_querystring = xstrdup(argv[i]+8);
214 } 215 }
215 if (!strncmp(argv[i], "--repo=", 7)) { 216 if (!strncmp(argv[i], "--repo=", 7)) {
216 cgit_query_repo = xstrdup(argv[i]+7); 217 cgit_query_repo = xstrdup(argv[i]+7);
217 } 218 }
218 if (!strncmp(argv[i], "--page=", 7)) { 219 if (!strncmp(argv[i], "--page=", 7)) {
219 cgit_query_page = xstrdup(argv[i]+7); 220 cgit_query_page = xstrdup(argv[i]+7);
220 } 221 }
221 if (!strncmp(argv[i], "--head=", 7)) { 222 if (!strncmp(argv[i], "--head=", 7)) {
222 cgit_query_head = xstrdup(argv[i]+7); 223 cgit_query_head = xstrdup(argv[i]+7);
223 cgit_query_has_symref = 1; 224 cgit_query_has_symref = 1;
224 } 225 }
225 if (!strncmp(argv[i], "--sha1=", 7)) { 226 if (!strncmp(argv[i], "--sha1=", 7)) {
226 cgit_query_sha1 = xstrdup(argv[i]+7); 227 cgit_query_sha1 = xstrdup(argv[i]+7);
227 cgit_query_has_sha1 = 1; 228 cgit_query_has_sha1 = 1;
228 } 229 }
229 if (!strncmp(argv[i], "--ofs=", 6)) { 230 if (!strncmp(argv[i], "--ofs=", 6)) {
230 cgit_query_ofs = atoi(argv[i]+6); 231 cgit_query_ofs = atoi(argv[i]+6);
231 } 232 }
232 } 233 }
233} 234}
234 235
235int main(int argc, const char **argv) 236int main(int argc, const char **argv)
236{ 237{
237 struct cacheitem item; 238 struct cacheitem item;
238 239
239 htmlfd = STDOUT_FILENO; 240 htmlfd = STDOUT_FILENO;
240 item.st.st_mtime = time(NULL); 241 item.st.st_mtime = time(NULL);
241 cgit_repolist.length = 0; 242 cgit_repolist.length = 0;
242 cgit_repolist.count = 0; 243 cgit_repolist.count = 0;
243 cgit_repolist.repos = NULL; 244 cgit_repolist.repos = NULL;
244 245
245 cgit_read_config("/etc/cgitrc", cgit_global_config_cb); 246 cgit_read_config("/etc/cgitrc", cgit_global_config_cb);
246 if (getenv("QUERY_STRING")) 247 if (getenv("QUERY_STRING"))
247 cgit_querystring = xstrdup(getenv("QUERY_STRING")); 248 cgit_querystring = xstrdup(getenv("QUERY_STRING"));
248 cgit_parse_args(argc, argv); 249 cgit_parse_args(argc, argv);
249 cgit_parse_query(cgit_querystring, cgit_querystring_cb); 250 cgit_parse_query(cgit_querystring, cgit_querystring_cb);
250 if (!cgit_prepare_cache(&item)) 251 if (!cgit_prepare_cache(&item))
251 return 0; 252 return 0;
252 if (cgit_nocache) { 253 if (cgit_nocache) {
253 cgit_fill_cache(&item, 0); 254 cgit_fill_cache(&item, 0);
254 } else { 255 } else {
255 cgit_check_cache(&item); 256 cgit_check_cache(&item);
256 cgit_print_cache(&item); 257 cgit_print_cache(&item);
257 } 258 }
258 return 0; 259 return 0;
259} 260}