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diff --git a/cgit.c b/cgit.c index 28bab8d..aee7ba3 100644 --- a/ cgit.c+++ b/ cgit.c |
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@@ -1,259 +1,259 @@ |
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) |
14 | static 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 | |
28 | static int cgit_prepare_cache(struct cacheitem *item) |
28 | static 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 | |
63 | static void cgit_print_repo_page(struct cacheitem *item) |
63 | static 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, 100, |
110 | cgit_print_log(cgit_query_head, cgit_query_ofs, |
111 | cgit_query_search); |
111 | cgit_max_commit_count, cgit_query_search); |
112 | } else if (!strcmp(cgit_query_page, "tree")) { |
112 | } else if (!strcmp(cgit_query_page, "tree")) { |
113 | cgit_print_tree(cgit_query_sha1, cgit_query_path); |
113 | cgit_print_tree(cgit_query_sha1, cgit_query_path); |
114 | } else if (!strcmp(cgit_query_page, "commit")) { |
114 | } else if (!strcmp(cgit_query_page, "commit")) { |
115 | cgit_print_commit(cgit_query_sha1); |
115 | cgit_print_commit(cgit_query_sha1); |
116 | } else if (!strcmp(cgit_query_page, "view")) { |
116 | } else if (!strcmp(cgit_query_page, "view")) { |
117 | cgit_print_view(cgit_query_sha1, cgit_query_path); |
117 | cgit_print_view(cgit_query_sha1, cgit_query_path); |
118 | } else if (!strcmp(cgit_query_page, "diff")) { |
118 | } else if (!strcmp(cgit_query_page, "diff")) { |
119 | cgit_print_diff(cgit_query_sha1, cgit_query_sha2); |
119 | cgit_print_diff(cgit_query_sha1, cgit_query_sha2); |
120 | } else { |
120 | } else { |
121 | cgit_print_error("Invalid request"); |
121 | cgit_print_error("Invalid request"); |
122 | } |
122 | } |
123 | cgit_print_docend(); |
123 | cgit_print_docend(); |
124 | } |
124 | } |
125 | |
125 | |
126 | static void cgit_fill_cache(struct cacheitem *item, int use_cache) |
126 | static void cgit_fill_cache(struct cacheitem *item, int use_cache) |
127 | { |
127 | { |
128 | static char buf[PATH_MAX]; |
128 | static char buf[PATH_MAX]; |
129 | int stdout2; |
129 | int stdout2; |
130 | |
130 | |
131 | getcwd(buf, sizeof(buf)); |
131 | getcwd(buf, sizeof(buf)); |
132 | item->st.st_mtime = time(NULL); |
132 | item->st.st_mtime = time(NULL); |
133 | |
133 | |
134 | if (use_cache) { |
134 | if (use_cache) { |
135 | stdout2 = chk_positive(dup(STDOUT_FILENO), |
135 | stdout2 = chk_positive(dup(STDOUT_FILENO), |
136 | "Preserving STDOUT"); |
136 | "Preserving STDOUT"); |
137 | chk_zero(close(STDOUT_FILENO), "Closing STDOUT"); |
137 | chk_zero(close(STDOUT_FILENO), "Closing STDOUT"); |
138 | chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)"); |
138 | chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)"); |
139 | } |
139 | } |
140 | |
140 | |
141 | if (cgit_query_repo) |
141 | if (cgit_query_repo) |
142 | cgit_print_repo_page(item); |
142 | cgit_print_repo_page(item); |
143 | else |
143 | else |
144 | cgit_print_repolist(item); |
144 | cgit_print_repolist(item); |
145 | |
145 | |
146 | if (use_cache) { |
146 | if (use_cache) { |
147 | chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT"); |
147 | chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT"); |
148 | chk_positive(dup2(stdout2, STDOUT_FILENO), |
148 | chk_positive(dup2(stdout2, STDOUT_FILENO), |
149 | "Restoring original STDOUT"); |
149 | "Restoring original STDOUT"); |
150 | chk_zero(close(stdout2), "Closing temporary STDOUT"); |
150 | chk_zero(close(stdout2), "Closing temporary STDOUT"); |
151 | } |
151 | } |
152 | |
152 | |
153 | chdir(buf); |
153 | chdir(buf); |
154 | } |
154 | } |
155 | |
155 | |
156 | static void cgit_check_cache(struct cacheitem *item) |
156 | static void cgit_check_cache(struct cacheitem *item) |
157 | { |
157 | { |
158 | int i = 0; |
158 | int i = 0; |
159 | |
159 | |
160 | top: |
160 | top: |
161 | if (++i > cgit_max_lock_attempts) { |
161 | if (++i > cgit_max_lock_attempts) { |
162 | die("cgit_refresh_cache: unable to lock %s: %s", |
162 | die("cgit_refresh_cache: unable to lock %s: %s", |
163 | item->name, strerror(errno)); |
163 | item->name, strerror(errno)); |
164 | } |
164 | } |
165 | if (!cache_exist(item)) { |
165 | if (!cache_exist(item)) { |
166 | if (!cache_lock(item)) { |
166 | if (!cache_lock(item)) { |
167 | sleep(1); |
167 | sleep(1); |
168 | goto top; |
168 | goto top; |
169 | } |
169 | } |
170 | if (!cache_exist(item)) { |
170 | if (!cache_exist(item)) { |
171 | cgit_fill_cache(item, 1); |
171 | cgit_fill_cache(item, 1); |
172 | cache_unlock(item); |
172 | cache_unlock(item); |
173 | } else { |
173 | } else { |
174 | cache_cancel_lock(item); |
174 | cache_cancel_lock(item); |
175 | } |
175 | } |
176 | } else if (cache_expired(item) && cache_lock(item)) { |
176 | } else if (cache_expired(item) && cache_lock(item)) { |
177 | if (cache_expired(item)) { |
177 | if (cache_expired(item)) { |
178 | cgit_fill_cache(item, 1); |
178 | cgit_fill_cache(item, 1); |
179 | cache_unlock(item); |
179 | cache_unlock(item); |
180 | } else { |
180 | } else { |
181 | cache_cancel_lock(item); |
181 | cache_cancel_lock(item); |
182 | } |
182 | } |
183 | } |
183 | } |
184 | } |
184 | } |
185 | |
185 | |
186 | static void cgit_print_cache(struct cacheitem *item) |
186 | static void cgit_print_cache(struct cacheitem *item) |
187 | { |
187 | { |
188 | static char buf[4096]; |
188 | static char buf[4096]; |
189 | ssize_t i; |
189 | ssize_t i; |
190 | |
190 | |
191 | int fd = open(item->name, O_RDONLY); |
191 | int fd = open(item->name, O_RDONLY); |
192 | if (fd<0) |
192 | if (fd<0) |
193 | die("Unable to open cached file %s", item->name); |
193 | die("Unable to open cached file %s", item->name); |
194 | |
194 | |
195 | while((i=read(fd, buf, sizeof(buf))) > 0) |
195 | while((i=read(fd, buf, sizeof(buf))) > 0) |
196 | write(STDOUT_FILENO, buf, i); |
196 | write(STDOUT_FILENO, buf, i); |
197 | |
197 | |
198 | close(fd); |
198 | close(fd); |
199 | } |
199 | } |
200 | |
200 | |
201 | static void cgit_parse_args(int argc, const char **argv) |
201 | static void cgit_parse_args(int argc, const char **argv) |
202 | { |
202 | { |
203 | int i; |
203 | int i; |
204 | |
204 | |
205 | for (i = 1; i < argc; i++) { |
205 | for (i = 1; i < argc; i++) { |
206 | if (!strncmp(argv[i], "--cache=", 8)) { |
206 | if (!strncmp(argv[i], "--cache=", 8)) { |
207 | cgit_cache_root = xstrdup(argv[i]+8); |
207 | cgit_cache_root = xstrdup(argv[i]+8); |
208 | } |
208 | } |
209 | if (!strcmp(argv[i], "--nocache")) { |
209 | if (!strcmp(argv[i], "--nocache")) { |
210 | cgit_nocache = 1; |
210 | cgit_nocache = 1; |
211 | } |
211 | } |
212 | if (!strncmp(argv[i], "--query=", 8)) { |
212 | if (!strncmp(argv[i], "--query=", 8)) { |
213 | cgit_querystring = xstrdup(argv[i]+8); |
213 | cgit_querystring = xstrdup(argv[i]+8); |
214 | } |
214 | } |
215 | if (!strncmp(argv[i], "--repo=", 7)) { |
215 | if (!strncmp(argv[i], "--repo=", 7)) { |
216 | cgit_query_repo = xstrdup(argv[i]+7); |
216 | cgit_query_repo = xstrdup(argv[i]+7); |
217 | } |
217 | } |
218 | if (!strncmp(argv[i], "--page=", 7)) { |
218 | if (!strncmp(argv[i], "--page=", 7)) { |
219 | cgit_query_page = xstrdup(argv[i]+7); |
219 | cgit_query_page = xstrdup(argv[i]+7); |
220 | } |
220 | } |
221 | if (!strncmp(argv[i], "--head=", 7)) { |
221 | if (!strncmp(argv[i], "--head=", 7)) { |
222 | cgit_query_head = xstrdup(argv[i]+7); |
222 | cgit_query_head = xstrdup(argv[i]+7); |
223 | cgit_query_has_symref = 1; |
223 | cgit_query_has_symref = 1; |
224 | } |
224 | } |
225 | if (!strncmp(argv[i], "--sha1=", 7)) { |
225 | if (!strncmp(argv[i], "--sha1=", 7)) { |
226 | cgit_query_sha1 = xstrdup(argv[i]+7); |
226 | cgit_query_sha1 = xstrdup(argv[i]+7); |
227 | cgit_query_has_sha1 = 1; |
227 | cgit_query_has_sha1 = 1; |
228 | } |
228 | } |
229 | if (!strncmp(argv[i], "--ofs=", 6)) { |
229 | if (!strncmp(argv[i], "--ofs=", 6)) { |
230 | cgit_query_ofs = atoi(argv[i]+6); |
230 | cgit_query_ofs = atoi(argv[i]+6); |
231 | } |
231 | } |
232 | } |
232 | } |
233 | } |
233 | } |
234 | |
234 | |
235 | int main(int argc, const char **argv) |
235 | int main(int argc, const char **argv) |
236 | { |
236 | { |
237 | struct cacheitem item; |
237 | struct cacheitem item; |
238 | |
238 | |
239 | htmlfd = STDOUT_FILENO; |
239 | htmlfd = STDOUT_FILENO; |
240 | item.st.st_mtime = time(NULL); |
240 | item.st.st_mtime = time(NULL); |
241 | cgit_repolist.length = 0; |
241 | cgit_repolist.length = 0; |
242 | cgit_repolist.count = 0; |
242 | cgit_repolist.count = 0; |
243 | cgit_repolist.repos = NULL; |
243 | cgit_repolist.repos = NULL; |
244 | |
244 | |
245 | cgit_read_config("/etc/cgitrc", cgit_global_config_cb); |
245 | cgit_read_config("/etc/cgitrc", cgit_global_config_cb); |
246 | if (getenv("QUERY_STRING")) |
246 | if (getenv("QUERY_STRING")) |
247 | cgit_querystring = xstrdup(getenv("QUERY_STRING")); |
247 | cgit_querystring = xstrdup(getenv("QUERY_STRING")); |
248 | cgit_parse_args(argc, argv); |
248 | cgit_parse_args(argc, argv); |
249 | cgit_parse_query(cgit_querystring, cgit_querystring_cb); |
249 | cgit_parse_query(cgit_querystring, cgit_querystring_cb); |
250 | if (!cgit_prepare_cache(&item)) |
250 | if (!cgit_prepare_cache(&item)) |
251 | return 0; |
251 | return 0; |
252 | if (cgit_nocache) { |
252 | if (cgit_nocache) { |
253 | cgit_fill_cache(&item, 0); |
253 | cgit_fill_cache(&item, 0); |
254 | } else { |
254 | } else { |
255 | cgit_check_cache(&item); |
255 | cgit_check_cache(&item); |
256 | cgit_print_cache(&item); |
256 | cgit_print_cache(&item); |
257 | } |
257 | } |
258 | return 0; |
258 | return 0; |
259 | } |
259 | } |
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