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-rw-r--r--parsing.c146
1 files changed, 11 insertions, 135 deletions
diff --git a/parsing.c b/parsing.c
index 5093b8b..66e8b3d 100644
--- a/parsing.c
+++ b/parsing.c
@@ -1,332 +1,208 @@
1/* config.c: parsing of config files 1/* config.c: parsing of config files
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
11int next_char(FILE *f)
12{
13 int c = fgetc(f);
14 if (c=='\r') {
15 c = fgetc(f);
16 if (c!='\n') {
17 ungetc(c, f);
18 c = '\r';
19 }
20 }
21 return c;
22}
23
24void skip_line(FILE *f)
25{
26 int c;
27
28 while((c=next_char(f)) && c!='\n' && c!=EOF)
29 ;
30}
31
32int read_config_line(FILE *f, char *line, const char **value, int bufsize)
33{
34 int i = 0, isname = 0;
35
36 *value = NULL;
37 while(i<bufsize-1) {
38 int c = next_char(f);
39 if (!isname && (c=='#' || c==';')) {
40 skip_line(f);
41 continue;
42 }
43 if (!isname && isspace(c))
44 continue;
45
46 if (c=='=' && !*value) {
47 line[i] = 0;
48 *value = &line[i+1];
49 } else if (c=='\n' && !isname) {
50 i = 0;
51 continue;
52 } else if (c=='\n' || c==EOF) {
53 line[i] = 0;
54 break;
55 } else {
56 line[i]=c;
57 }
58 isname = 1;
59 i++;
60 }
61 line[i+1] = 0;
62 return i;
63}
64
65int cgit_read_config(const char *filename, configfn fn)
66{
67 static int nesting;
68 int len;
69 char line[256];
70 const char *value;
71 FILE *f;
72
73 /* cancel deeply nested include-commands */
74 if (nesting > 8)
75 return -1;
76 if (!(f = fopen(filename, "r")))
77 return -1;
78 nesting++;
79 while((len = read_config_line(f, line, &value, sizeof(line))) > 0)
80 (*fn)(line, value);
81 nesting--;
82 fclose(f);
83 return 0;
84}
85
86char *convert_query_hexchar(char *txt)
87{
88 int d1, d2;
89 if (strlen(txt) < 3) {
90 *txt = '\0';
91 return txt-1;
92 }
93 d1 = hextoint(*(txt+1));
94 d2 = hextoint(*(txt+2));
95 if (d1<0 || d2<0) {
96 strcpy(txt, txt+3);
97 return txt-1;
98 } else {
99 *txt = d1 * 16 + d2;
100 strcpy(txt+1, txt+3);
101 return txt;
102 }
103}
104
105int cgit_parse_query(char *txt, configfn fn)
106{
107 char *t, *value = NULL, c;
108
109 if (!txt)
110 return 0;
111
112 t = txt = xstrdup(txt);
113
114 while((c=*t) != '\0') {
115 if (c=='=') {
116 *t = '\0';
117 value = t+1;
118 } else if (c=='+') {
119 *t = ' ';
120 } else if (c=='%') {
121 t = convert_query_hexchar(t);
122 } else if (c=='&') {
123 *t = '\0';
124 (*fn)(txt, value);
125 txt = t+1;
126 value = NULL;
127 }
128 t++;
129 }
130 if (t!=txt)
131 (*fn)(txt, value);
132 return 0;
133}
134
135/* 11/*
136 * url syntax: [repo ['/' cmd [ '/' path]]] 12 * url syntax: [repo ['/' cmd [ '/' path]]]
137 * repo: any valid repo url, may contain '/' 13 * repo: any valid repo url, may contain '/'
138 * cmd: log | commit | diff | tree | view | blob | snapshot 14 * cmd: log | commit | diff | tree | view | blob | snapshot
139 * path: any valid path, may contain '/' 15 * path: any valid path, may contain '/'
140 * 16 *
141 */ 17 */
142void cgit_parse_url(const char *url) 18void cgit_parse_url(const char *url)
143{ 19{
144 char *cmd, *p; 20 char *cmd, *p;
145 21
146 cgit_repo = NULL; 22 ctx.repo = NULL;
147 if (!url || url[0] == '\0') 23 if (!url || url[0] == '\0')
148 return; 24 return;
149 25
150 cgit_repo = cgit_get_repoinfo(url); 26 ctx.repo = cgit_get_repoinfo(url);
151 if (cgit_repo) { 27 if (ctx.repo) {
152 cgit_query_repo = cgit_repo->url; 28 ctx.qry.repo = ctx.repo->url;
153 return; 29 return;
154 } 30 }
155 31
156 cmd = strchr(url, '/'); 32 cmd = strchr(url, '/');
157 while (!cgit_repo && cmd) { 33 while (!ctx.repo && cmd) {
158 cmd[0] = '\0'; 34 cmd[0] = '\0';
159 cgit_repo = cgit_get_repoinfo(url); 35 ctx.repo = cgit_get_repoinfo(url);
160 if (cgit_repo == NULL) { 36 if (ctx.repo == NULL) {
161 cmd[0] = '/'; 37 cmd[0] = '/';
162 cmd = strchr(cmd + 1, '/'); 38 cmd = strchr(cmd + 1, '/');
163 continue; 39 continue;
164 } 40 }
165 41
166 cgit_query_repo = cgit_repo->url; 42 ctx.qry.repo = ctx.repo->url;
167 p = strchr(cmd + 1, '/'); 43 p = strchr(cmd + 1, '/');
168 if (p) { 44 if (p) {
169 p[0] = '\0'; 45 p[0] = '\0';
170 if (p[1]) 46 if (p[1])
171 cgit_query_path = trim_end(p + 1, '/'); 47 ctx.qry.path = trim_end(p + 1, '/');
172 } 48 }
173 cgit_cmd = cgit_get_cmd_index(cmd + 1); 49 if (cmd[1])
174 cgit_query_page = xstrdup(cmd + 1); 50 ctx.qry.page = xstrdup(cmd + 1);
175 return; 51 return;
176 } 52 }
177} 53}
178 54
179char *substr(const char *head, const char *tail) 55char *substr(const char *head, const char *tail)
180{ 56{
181 char *buf; 57 char *buf;
182 58
183 buf = xmalloc(tail - head + 1); 59 buf = xmalloc(tail - head + 1);
184 strncpy(buf, head, tail - head); 60 strncpy(buf, head, tail - head);
185 buf[tail - head] = '\0'; 61 buf[tail - head] = '\0';
186 return buf; 62 return buf;
187} 63}
188 64
189struct commitinfo *cgit_parse_commit(struct commit *commit) 65struct commitinfo *cgit_parse_commit(struct commit *commit)
190{ 66{
191 struct commitinfo *ret; 67 struct commitinfo *ret;
192 char *p = commit->buffer, *t = commit->buffer; 68 char *p = commit->buffer, *t = commit->buffer;
193 69
194 ret = xmalloc(sizeof(*ret)); 70 ret = xmalloc(sizeof(*ret));
195 ret->commit = commit; 71 ret->commit = commit;
196 ret->author = NULL; 72 ret->author = NULL;
197 ret->author_email = NULL; 73 ret->author_email = NULL;
198 ret->committer = NULL; 74 ret->committer = NULL;
199 ret->committer_email = NULL; 75 ret->committer_email = NULL;
200 ret->subject = NULL; 76 ret->subject = NULL;
201 ret->msg = NULL; 77 ret->msg = NULL;
202 ret->msg_encoding = NULL; 78 ret->msg_encoding = NULL;
203 79
204 if (p == NULL) 80 if (p == NULL)
205 return ret; 81 return ret;
206 82
207 if (strncmp(p, "tree ", 5)) 83 if (strncmp(p, "tree ", 5))
208 die("Bad commit: %s", sha1_to_hex(commit->object.sha1)); 84 die("Bad commit: %s", sha1_to_hex(commit->object.sha1));
209 else 85 else
210 p += 46; // "tree " + hex[40] + "\n" 86 p += 46; // "tree " + hex[40] + "\n"
211 87
212 while (!strncmp(p, "parent ", 7)) 88 while (!strncmp(p, "parent ", 7))
213 p += 48; // "parent " + hex[40] + "\n" 89 p += 48; // "parent " + hex[40] + "\n"
214 90
215 if (!strncmp(p, "author ", 7)) { 91 if (!strncmp(p, "author ", 7)) {
216 p += 7; 92 p += 7;
217 t = strchr(p, '<') - 1; 93 t = strchr(p, '<') - 1;
218 ret->author = substr(p, t); 94 ret->author = substr(p, t);
219 p = t; 95 p = t;
220 t = strchr(t, '>') + 1; 96 t = strchr(t, '>') + 1;
221 ret->author_email = substr(p, t); 97 ret->author_email = substr(p, t);
222 ret->author_date = atol(t+1); 98 ret->author_date = atol(t+1);
223 p = strchr(t, '\n') + 1; 99 p = strchr(t, '\n') + 1;
224 } 100 }
225 101
226 if (!strncmp(p, "committer ", 9)) { 102 if (!strncmp(p, "committer ", 9)) {
227 p += 9; 103 p += 9;
228 t = strchr(p, '<') - 1; 104 t = strchr(p, '<') - 1;
229 ret->committer = substr(p, t); 105 ret->committer = substr(p, t);
230 p = t; 106 p = t;
231 t = strchr(t, '>') + 1; 107 t = strchr(t, '>') + 1;
232 ret->committer_email = substr(p, t); 108 ret->committer_email = substr(p, t);
233 ret->committer_date = atol(t+1); 109 ret->committer_date = atol(t+1);
234 p = strchr(t, '\n') + 1; 110 p = strchr(t, '\n') + 1;
235 } 111 }
236 112
237 if (!strncmp(p, "encoding ", 9)) { 113 if (!strncmp(p, "encoding ", 9)) {
238 p += 9; 114 p += 9;
239 t = strchr(p, '\n') + 1; 115 t = strchr(p, '\n') + 1;
240 ret->msg_encoding = substr(p, t); 116 ret->msg_encoding = substr(p, t);
241 p = t; 117 p = t;
242 } else 118 } else
243 ret->msg_encoding = xstrdup(PAGE_ENCODING); 119 ret->msg_encoding = xstrdup(PAGE_ENCODING);
244 120
245 while (*p && (*p != '\n')) 121 while (*p && (*p != '\n'))
246 p = strchr(p, '\n') + 1; // skip unknown header fields 122 p = strchr(p, '\n') + 1; // skip unknown header fields
247 123
248 while (*p == '\n') 124 while (*p == '\n')
249 p = strchr(p, '\n') + 1; 125 p = strchr(p, '\n') + 1;
250 126
251 t = strchr(p, '\n'); 127 t = strchr(p, '\n');
252 if (t) { 128 if (t) {
253 if (*t == '\0') 129 if (*t == '\0')
254 ret->subject = "** empty **"; 130 ret->subject = "** empty **";
255 else 131 else
256 ret->subject = substr(p, t); 132 ret->subject = substr(p, t);
257 p = t + 1; 133 p = t + 1;
258 134
259 while (*p == '\n') 135 while (*p == '\n')
260 p = strchr(p, '\n') + 1; 136 p = strchr(p, '\n') + 1;
261 ret->msg = xstrdup(p); 137 ret->msg = xstrdup(p);
262 } else 138 } else
263 ret->subject = substr(p, p+strlen(p)); 139 ret->subject = substr(p, p+strlen(p));
264 140
265 if(strcmp(ret->msg_encoding, PAGE_ENCODING)) { 141 if(strcmp(ret->msg_encoding, PAGE_ENCODING)) {
266 t = reencode_string(ret->subject, PAGE_ENCODING, 142 t = reencode_string(ret->subject, PAGE_ENCODING,
267 ret->msg_encoding); 143 ret->msg_encoding);
268 if(t) { 144 if(t) {
269 free(ret->subject); 145 free(ret->subject);
270 ret->subject = t; 146 ret->subject = t;
271 } 147 }
272 148
273 t = reencode_string(ret->msg, PAGE_ENCODING, 149 t = reencode_string(ret->msg, PAGE_ENCODING,
274 ret->msg_encoding); 150 ret->msg_encoding);
275 if(t) { 151 if(t) {
276 free(ret->msg); 152 free(ret->msg);
277 ret->msg = t; 153 ret->msg = t;
278 } 154 }
279 } 155 }
280 156
281 return ret; 157 return ret;
282} 158}
283 159
284 160
285struct taginfo *cgit_parse_tag(struct tag *tag) 161struct taginfo *cgit_parse_tag(struct tag *tag)
286{ 162{
287 void *data; 163 void *data;
288 enum object_type type; 164 enum object_type type;
289 unsigned long size; 165 unsigned long size;
290 char *p, *t; 166 char *p, *t;
291 struct taginfo *ret; 167 struct taginfo *ret;
292 168
293 data = read_sha1_file(tag->object.sha1, &type, &size); 169 data = read_sha1_file(tag->object.sha1, &type, &size);
294 if (!data || type != OBJ_TAG) { 170 if (!data || type != OBJ_TAG) {
295 free(data); 171 free(data);
296 return 0; 172 return 0;
297 } 173 }
298 174
299 ret = xmalloc(sizeof(*ret)); 175 ret = xmalloc(sizeof(*ret));
300 ret->tagger = NULL; 176 ret->tagger = NULL;
301 ret->tagger_email = NULL; 177 ret->tagger_email = NULL;
302 ret->tagger_date = 0; 178 ret->tagger_date = 0;
303 ret->msg = NULL; 179 ret->msg = NULL;
304 180
305 p = data; 181 p = data;
306 182
307 while (p && *p) { 183 while (p && *p) {
308 if (*p == '\n') 184 if (*p == '\n')
309 break; 185 break;
310 186
311 if (!strncmp(p, "tagger ", 7)) { 187 if (!strncmp(p, "tagger ", 7)) {
312 p += 7; 188 p += 7;
313 t = strchr(p, '<') - 1; 189 t = strchr(p, '<') - 1;
314 ret->tagger = substr(p, t); 190 ret->tagger = substr(p, t);
315 p = t; 191 p = t;
316 t = strchr(t, '>') + 1; 192 t = strchr(t, '>') + 1;
317 ret->tagger_email = substr(p, t); 193 ret->tagger_email = substr(p, t);
318 ret->tagger_date = atol(t+1); 194 ret->tagger_date = atol(t+1);
319 } 195 }
320 p = strchr(p, '\n') + 1; 196 p = strchr(p, '\n') + 1;
321 } 197 }
322 198
323 while (p && *p && (*p != '\n')) 199 while (p && *p && (*p != '\n'))
324 p = strchr(p, '\n') + 1; // skip unknown tag fields 200 p = strchr(p, '\n') + 1; // skip unknown tag fields
325 201
326 while (p && (*p == '\n')) 202 while (p && (*p == '\n'))
327 p = strchr(p, '\n') + 1; 203 p = strchr(p, '\n') + 1;
328 if (p && *p) 204 if (p && *p)
329 ret->msg = xstrdup(p); 205 ret->msg = xstrdup(p);
330 free(data); 206 free(data);
331 return ret; 207 return ret;
332} 208}