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diff --git a/cgit.c b/cgit.c index 3e7e595..431e8fb 100644 --- a/ cgit.c+++ b/ cgit.c |
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@@ -1,266 +1,252 @@ |
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 | |
11 | const char cgit_version[] = CGIT_VERSION; |
11 | const char cgit_version[] = CGIT_VERSION; |
12 | |
12 | |
13 | |
13 | |
14 | static struct repoinfo *cgit_get_repoinfo(char *url) |
| |
15 | { |
| |
16 | int i; |
| |
17 | struct repoinfo *repo; |
| |
18 | |
| |
19 | for (i=0; i<cgit_repolist.count; i++) { |
| |
20 | repo = &cgit_repolist.repos[i]; |
| |
21 | if (!strcmp(repo->url, url)) |
| |
22 | return repo; |
| |
23 | } |
| |
24 | return NULL; |
| |
25 | } |
| |
26 | |
| |
27 | |
| |
28 | static int cgit_prepare_cache(struct cacheitem *item) |
14 | static int cgit_prepare_cache(struct cacheitem *item) |
29 | { |
15 | { |
30 | if (!cgit_query_repo) { |
16 | if (!cgit_query_repo) { |
31 | item->name = xstrdup(fmt("%s/index.html", cgit_cache_root)); |
17 | item->name = xstrdup(fmt("%s/index.html", cgit_cache_root)); |
32 | item->ttl = cgit_cache_root_ttl; |
18 | item->ttl = cgit_cache_root_ttl; |
33 | return 1; |
19 | return 1; |
34 | } |
20 | } |
35 | cgit_repo = cgit_get_repoinfo(cgit_query_repo); |
21 | cgit_repo = cgit_get_repoinfo(cgit_query_repo); |
36 | if (!cgit_repo) { |
22 | if (!cgit_repo) { |
37 | char *title = fmt("%s - %s", cgit_root_title, "Bad request"); |
23 | char *title = fmt("%s - %s", cgit_root_title, "Bad request"); |
38 | cgit_print_docstart(title, item); |
24 | cgit_print_docstart(title, item); |
39 | cgit_print_pageheader(title, 0); |
25 | cgit_print_pageheader(title, 0); |
40 | cgit_print_error(fmt("Unknown repo: %s", cgit_query_repo)); |
26 | cgit_print_error(fmt("Unknown repo: %s", cgit_query_repo)); |
41 | cgit_print_docend(); |
27 | cgit_print_docend(); |
42 | return 0; |
28 | return 0; |
43 | } |
29 | } |
44 | |
30 | |
45 | if (!cgit_query_page) { |
31 | if (!cgit_query_page) { |
46 | item->name = xstrdup(fmt("%s/%s/index.html", cgit_cache_root, |
32 | item->name = xstrdup(fmt("%s/%s/index.html", cgit_cache_root, |
47 | cgit_repo->url)); |
33 | cgit_repo->url)); |
48 | item->ttl = cgit_cache_repo_ttl; |
34 | item->ttl = cgit_cache_repo_ttl; |
49 | } else { |
35 | } else { |
50 | item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root, |
36 | item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root, |
51 | cgit_repo->url, cgit_query_page, |
37 | cgit_repo->url, cgit_query_page, |
52 | cache_safe_filename(cgit_querystring))); |
38 | cache_safe_filename(cgit_querystring))); |
53 | if (cgit_query_has_symref) |
39 | if (cgit_query_has_symref) |
54 | item->ttl = cgit_cache_dynamic_ttl; |
40 | item->ttl = cgit_cache_dynamic_ttl; |
55 | else if (cgit_query_has_sha1) |
41 | else if (cgit_query_has_sha1) |
56 | item->ttl = cgit_cache_static_ttl; |
42 | item->ttl = cgit_cache_static_ttl; |
57 | else |
43 | else |
58 | item->ttl = cgit_cache_repo_ttl; |
44 | item->ttl = cgit_cache_repo_ttl; |
59 | } |
45 | } |
60 | return 1; |
46 | return 1; |
61 | } |
47 | } |
62 | |
48 | |
63 | static void cgit_print_repo_page(struct cacheitem *item) |
49 | static void cgit_print_repo_page(struct cacheitem *item) |
64 | { |
50 | { |
65 | char *title; |
51 | char *title; |
66 | int show_search; |
52 | int show_search; |
67 | |
53 | |
68 | if (!cgit_query_head) |
54 | if (!cgit_query_head) |
69 | cgit_query_head = cgit_repo->defbranch; |
55 | cgit_query_head = cgit_repo->defbranch; |
70 | |
56 | |
71 | if (chdir(cgit_repo->path)) { |
57 | if (chdir(cgit_repo->path)) { |
72 | title = fmt("%s - %s", cgit_root_title, "Bad request"); |
58 | title = fmt("%s - %s", cgit_root_title, "Bad request"); |
73 | cgit_print_docstart(title, item); |
59 | cgit_print_docstart(title, item); |
74 | cgit_print_pageheader(title, 0); |
60 | cgit_print_pageheader(title, 0); |
75 | cgit_print_error(fmt("Unable to scan repository: %s", |
61 | cgit_print_error(fmt("Unable to scan repository: %s", |
76 | strerror(errno))); |
62 | strerror(errno))); |
77 | cgit_print_docend(); |
63 | cgit_print_docend(); |
78 | return; |
64 | return; |
79 | } |
65 | } |
80 | |
66 | |
81 | title = fmt("%s - %s", cgit_repo->name, cgit_repo->desc); |
67 | title = fmt("%s - %s", cgit_repo->name, cgit_repo->desc); |
82 | show_search = 0; |
68 | show_search = 0; |
83 | setenv("GIT_DIR", cgit_repo->path, 1); |
69 | setenv("GIT_DIR", cgit_repo->path, 1); |
84 | |
70 | |
85 | if (cgit_query_page) { |
71 | if (cgit_query_page) { |
86 | if (cgit_repo->snapshots && !strcmp(cgit_query_page, "snapshot")) { |
72 | if (cgit_repo->snapshots && !strcmp(cgit_query_page, "snapshot")) { |
87 | cgit_print_snapshot(item, cgit_query_sha1, "zip", |
73 | cgit_print_snapshot(item, cgit_query_sha1, "zip", |
88 | cgit_repo->url, cgit_query_name); |
74 | cgit_repo->url, cgit_query_name); |
89 | return; |
75 | return; |
90 | } |
76 | } |
91 | if (!strcmp(cgit_query_page, "blob")) { |
77 | if (!strcmp(cgit_query_page, "blob")) { |
92 | cgit_print_blob(item, cgit_query_sha1, cgit_query_path); |
78 | cgit_print_blob(item, cgit_query_sha1, cgit_query_path); |
93 | return; |
79 | return; |
94 | } |
80 | } |
95 | } |
81 | } |
96 | |
82 | |
97 | if (cgit_query_page && !strcmp(cgit_query_page, "log")) |
83 | if (cgit_query_page && !strcmp(cgit_query_page, "log")) |
98 | show_search = 1; |
84 | show_search = 1; |
99 | |
85 | |
100 | cgit_print_docstart(title, item); |
86 | cgit_print_docstart(title, item); |
101 | |
87 | |
102 | |
88 | |
103 | if (!cgit_query_page) { |
89 | if (!cgit_query_page) { |
104 | cgit_print_pageheader("summary", show_search); |
90 | cgit_print_pageheader("summary", show_search); |
105 | cgit_print_summary(); |
91 | cgit_print_summary(); |
106 | cgit_print_docend(); |
92 | cgit_print_docend(); |
107 | return; |
93 | return; |
108 | } |
94 | } |
109 | |
95 | |
110 | cgit_print_pageheader(cgit_query_page, show_search); |
96 | cgit_print_pageheader(cgit_query_page, show_search); |
111 | |
97 | |
112 | if (!strcmp(cgit_query_page, "log")) { |
98 | if (!strcmp(cgit_query_page, "log")) { |
113 | cgit_print_log(cgit_query_head, cgit_query_ofs, |
99 | cgit_print_log(cgit_query_head, cgit_query_ofs, |
114 | cgit_max_commit_count, cgit_query_search, |
100 | cgit_max_commit_count, cgit_query_search, |
115 | cgit_query_path); |
101 | cgit_query_path); |
116 | } else if (!strcmp(cgit_query_page, "tree")) { |
102 | } else if (!strcmp(cgit_query_page, "tree")) { |
117 | cgit_print_tree(cgit_query_head, cgit_query_sha1, cgit_query_path); |
103 | cgit_print_tree(cgit_query_head, cgit_query_sha1, cgit_query_path); |
118 | } else if (!strcmp(cgit_query_page, "commit")) { |
104 | } else if (!strcmp(cgit_query_page, "commit")) { |
119 | cgit_print_commit(cgit_query_head); |
105 | cgit_print_commit(cgit_query_head); |
120 | } else if (!strcmp(cgit_query_page, "view")) { |
106 | } else if (!strcmp(cgit_query_page, "view")) { |
121 | cgit_print_view(cgit_query_sha1, cgit_query_path); |
107 | cgit_print_view(cgit_query_sha1, cgit_query_path); |
122 | } else if (!strcmp(cgit_query_page, "diff")) { |
108 | } else if (!strcmp(cgit_query_page, "diff")) { |
123 | cgit_print_diff(cgit_query_head, cgit_query_sha1, cgit_query_sha2, |
109 | cgit_print_diff(cgit_query_head, cgit_query_sha1, cgit_query_sha2, |
124 | cgit_query_path); |
110 | cgit_query_path); |
125 | } else { |
111 | } else { |
126 | cgit_print_error("Invalid request"); |
112 | cgit_print_error("Invalid request"); |
127 | } |
113 | } |
128 | cgit_print_docend(); |
114 | cgit_print_docend(); |
129 | } |
115 | } |
130 | |
116 | |
131 | static void cgit_fill_cache(struct cacheitem *item, int use_cache) |
117 | static void cgit_fill_cache(struct cacheitem *item, int use_cache) |
132 | { |
118 | { |
133 | static char buf[PATH_MAX]; |
119 | static char buf[PATH_MAX]; |
134 | int stdout2; |
120 | int stdout2; |
135 | |
121 | |
136 | getcwd(buf, sizeof(buf)); |
122 | getcwd(buf, sizeof(buf)); |
137 | item->st.st_mtime = time(NULL); |
123 | item->st.st_mtime = time(NULL); |
138 | |
124 | |
139 | if (use_cache) { |
125 | if (use_cache) { |
140 | stdout2 = chk_positive(dup(STDOUT_FILENO), |
126 | stdout2 = chk_positive(dup(STDOUT_FILENO), |
141 | "Preserving STDOUT"); |
127 | "Preserving STDOUT"); |
142 | chk_zero(close(STDOUT_FILENO), "Closing STDOUT"); |
128 | chk_zero(close(STDOUT_FILENO), "Closing STDOUT"); |
143 | chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)"); |
129 | chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)"); |
144 | } |
130 | } |
145 | |
131 | |
146 | if (cgit_query_repo) |
132 | if (cgit_query_repo) |
147 | cgit_print_repo_page(item); |
133 | cgit_print_repo_page(item); |
148 | else |
134 | else |
149 | cgit_print_repolist(item); |
135 | cgit_print_repolist(item); |
150 | |
136 | |
151 | if (use_cache) { |
137 | if (use_cache) { |
152 | chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT"); |
138 | chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT"); |
153 | chk_positive(dup2(stdout2, STDOUT_FILENO), |
139 | chk_positive(dup2(stdout2, STDOUT_FILENO), |
154 | "Restoring original STDOUT"); |
140 | "Restoring original STDOUT"); |
155 | chk_zero(close(stdout2), "Closing temporary STDOUT"); |
141 | chk_zero(close(stdout2), "Closing temporary STDOUT"); |
156 | } |
142 | } |
157 | |
143 | |
158 | chdir(buf); |
144 | chdir(buf); |
159 | } |
145 | } |
160 | |
146 | |
161 | static void cgit_check_cache(struct cacheitem *item) |
147 | static void cgit_check_cache(struct cacheitem *item) |
162 | { |
148 | { |
163 | int i = 0; |
149 | int i = 0; |
164 | |
150 | |
165 | top: |
151 | top: |
166 | if (++i > cgit_max_lock_attempts) { |
152 | if (++i > cgit_max_lock_attempts) { |
167 | die("cgit_refresh_cache: unable to lock %s: %s", |
153 | die("cgit_refresh_cache: unable to lock %s: %s", |
168 | item->name, strerror(errno)); |
154 | item->name, strerror(errno)); |
169 | } |
155 | } |
170 | if (!cache_exist(item)) { |
156 | if (!cache_exist(item)) { |
171 | if (!cache_lock(item)) { |
157 | if (!cache_lock(item)) { |
172 | sleep(1); |
158 | sleep(1); |
173 | goto top; |
159 | goto top; |
174 | } |
160 | } |
175 | if (!cache_exist(item)) { |
161 | if (!cache_exist(item)) { |
176 | cgit_fill_cache(item, 1); |
162 | cgit_fill_cache(item, 1); |
177 | cache_unlock(item); |
163 | cache_unlock(item); |
178 | } else { |
164 | } else { |
179 | cache_cancel_lock(item); |
165 | cache_cancel_lock(item); |
180 | } |
166 | } |
181 | } else if (cache_expired(item) && cache_lock(item)) { |
167 | } else if (cache_expired(item) && cache_lock(item)) { |
182 | if (cache_expired(item)) { |
168 | if (cache_expired(item)) { |
183 | cgit_fill_cache(item, 1); |
169 | cgit_fill_cache(item, 1); |
184 | cache_unlock(item); |
170 | cache_unlock(item); |
185 | } else { |
171 | } else { |
186 | cache_cancel_lock(item); |
172 | cache_cancel_lock(item); |
187 | } |
173 | } |
188 | } |
174 | } |
189 | } |
175 | } |
190 | |
176 | |
191 | static void cgit_print_cache(struct cacheitem *item) |
177 | static void cgit_print_cache(struct cacheitem *item) |
192 | { |
178 | { |
193 | static char buf[4096]; |
179 | static char buf[4096]; |
194 | ssize_t i; |
180 | ssize_t i; |
195 | |
181 | |
196 | int fd = open(item->name, O_RDONLY); |
182 | int fd = open(item->name, O_RDONLY); |
197 | if (fd<0) |
183 | if (fd<0) |
198 | die("Unable to open cached file %s", item->name); |
184 | die("Unable to open cached file %s", item->name); |
199 | |
185 | |
200 | while((i=read(fd, buf, sizeof(buf))) > 0) |
186 | while((i=read(fd, buf, sizeof(buf))) > 0) |
201 | write(STDOUT_FILENO, buf, i); |
187 | write(STDOUT_FILENO, buf, i); |
202 | |
188 | |
203 | close(fd); |
189 | close(fd); |
204 | } |
190 | } |
205 | |
191 | |
206 | static void cgit_parse_args(int argc, const char **argv) |
192 | static void cgit_parse_args(int argc, const char **argv) |
207 | { |
193 | { |
208 | int i; |
194 | int i; |
209 | |
195 | |
210 | for (i = 1; i < argc; i++) { |
196 | for (i = 1; i < argc; i++) { |
211 | if (!strncmp(argv[i], "--cache=", 8)) { |
197 | if (!strncmp(argv[i], "--cache=", 8)) { |
212 | cgit_cache_root = xstrdup(argv[i]+8); |
198 | cgit_cache_root = xstrdup(argv[i]+8); |
213 | } |
199 | } |
214 | if (!strcmp(argv[i], "--nocache")) { |
200 | if (!strcmp(argv[i], "--nocache")) { |
215 | cgit_nocache = 1; |
201 | cgit_nocache = 1; |
216 | } |
202 | } |
217 | if (!strncmp(argv[i], "--query=", 8)) { |
203 | if (!strncmp(argv[i], "--query=", 8)) { |
218 | cgit_querystring = xstrdup(argv[i]+8); |
204 | cgit_querystring = xstrdup(argv[i]+8); |
219 | } |
205 | } |
220 | if (!strncmp(argv[i], "--repo=", 7)) { |
206 | if (!strncmp(argv[i], "--repo=", 7)) { |
221 | cgit_query_repo = xstrdup(argv[i]+7); |
207 | cgit_query_repo = xstrdup(argv[i]+7); |
222 | } |
208 | } |
223 | if (!strncmp(argv[i], "--page=", 7)) { |
209 | if (!strncmp(argv[i], "--page=", 7)) { |
224 | cgit_query_page = xstrdup(argv[i]+7); |
210 | cgit_query_page = xstrdup(argv[i]+7); |
225 | } |
211 | } |
226 | if (!strncmp(argv[i], "--head=", 7)) { |
212 | if (!strncmp(argv[i], "--head=", 7)) { |
227 | cgit_query_head = xstrdup(argv[i]+7); |
213 | cgit_query_head = xstrdup(argv[i]+7); |
228 | cgit_query_has_symref = 1; |
214 | cgit_query_has_symref = 1; |
229 | } |
215 | } |
230 | if (!strncmp(argv[i], "--sha1=", 7)) { |
216 | if (!strncmp(argv[i], "--sha1=", 7)) { |
231 | cgit_query_sha1 = xstrdup(argv[i]+7); |
217 | cgit_query_sha1 = xstrdup(argv[i]+7); |
232 | cgit_query_has_sha1 = 1; |
218 | cgit_query_has_sha1 = 1; |
233 | } |
219 | } |
234 | if (!strncmp(argv[i], "--ofs=", 6)) { |
220 | if (!strncmp(argv[i], "--ofs=", 6)) { |
235 | cgit_query_ofs = atoi(argv[i]+6); |
221 | cgit_query_ofs = atoi(argv[i]+6); |
236 | } |
222 | } |
237 | } |
223 | } |
238 | } |
224 | } |
239 | |
225 | |
240 | int main(int argc, const char **argv) |
226 | int main(int argc, const char **argv) |
241 | { |
227 | { |
242 | struct cacheitem item; |
228 | struct cacheitem item; |
243 | |
229 | |
244 | htmlfd = STDOUT_FILENO; |
230 | htmlfd = STDOUT_FILENO; |
245 | item.st.st_mtime = time(NULL); |
231 | item.st.st_mtime = time(NULL); |
246 | cgit_repolist.length = 0; |
232 | cgit_repolist.length = 0; |
247 | cgit_repolist.count = 0; |
233 | cgit_repolist.count = 0; |
248 | cgit_repolist.repos = NULL; |
234 | cgit_repolist.repos = NULL; |
249 | |
235 | |
250 | cgit_read_config(CGIT_CONFIG, cgit_global_config_cb); |
236 | cgit_read_config(CGIT_CONFIG, cgit_global_config_cb); |
251 | if (getenv("SCRIPT_NAME")) |
237 | if (getenv("SCRIPT_NAME")) |
252 | cgit_script_name = xstrdup(getenv("SCRIPT_NAME")); |
238 | cgit_script_name = xstrdup(getenv("SCRIPT_NAME")); |
253 | if (getenv("QUERY_STRING")) |
239 | if (getenv("QUERY_STRING")) |
254 | cgit_querystring = xstrdup(getenv("QUERY_STRING")); |
240 | cgit_querystring = xstrdup(getenv("QUERY_STRING")); |
255 | cgit_parse_args(argc, argv); |
241 | cgit_parse_args(argc, argv); |
256 | cgit_parse_query(cgit_querystring, cgit_querystring_cb); |
242 | cgit_parse_query(cgit_querystring, cgit_querystring_cb); |
257 | if (!cgit_prepare_cache(&item)) |
243 | if (!cgit_prepare_cache(&item)) |
258 | return 0; |
244 | return 0; |
259 | if (cgit_nocache) { |
245 | if (cgit_nocache) { |
260 | cgit_fill_cache(&item, 0); |
246 | cgit_fill_cache(&item, 0); |
261 | } else { |
247 | } else { |
262 | cgit_check_cache(&item); |
248 | cgit_check_cache(&item); |
263 | cgit_print_cache(&item); |
249 | cgit_print_cache(&item); |
264 | } |
250 | } |
265 | return 0; |
251 | return 0; |
266 | } |
252 | } |
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