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1.10 ! tobias 1: /* $OpenBSD: trigger.c,v 1.9 2008/06/10 04:38:46 tobias Exp $ */
1.1 joris 2: /*
3: * Copyright (c) 2008 Tobias Stoeckmann <tobias@openbsd.org>
4: * Copyright (c) 2008 Jonathan Armani <dbd@asystant.net>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/queue.h>
20: #include <sys/types.h>
21:
22: #include <ctype.h>
23: #include <errno.h>
1.3 joris 24: #include <libgen.h>
1.1 joris 25: #include <regex.h>
26: #include <stdio.h>
27: #include <stdlib.h>
28: #include <string.h>
29: #include <unistd.h>
30:
31: #include "config.h"
32: #include "cvs.h"
33:
34: static int expand_args(BUF *, struct file_info_list *, const char *,
35: const char *, char *);
36: static char *parse_cmd(int, char *, const char *, struct file_info_list *);
37:
38: static int
39: expand_args(BUF *buf, struct file_info_list *file_info, const char *repo,
40: const char *allowed_args, char *format)
41: {
42: int oldstyle, quote;
43: struct file_info *fi = NULL;
44: char *p, valbuf[2] = { '\0', '\0' };
45: const char *val;
46:
47: if (file_info != NULL && !TAILQ_EMPTY(file_info))
48: fi = TAILQ_FIRST(file_info);
49:
50: quote = oldstyle = 0;
51:
52: /* Why does GNU cvs print something if it encounters %{}? */
53: if (*format == '\0')
54: oldstyle = 1;
55:
56: for (p = format; *p != '\0'; p++) {
57: if (*p != '%' && strchr(allowed_args, *p) == NULL)
58: return 1;
59:
60: switch (*p) {
61: case 's':
62: case 'V':
63: case 'v':
64: quote = 1;
65: oldstyle = 1;
66: break;
67: default:
68: break;
69: }
70: }
71: if (quote)
72: cvs_buf_putc(buf, '"');
73: if (oldstyle) {
1.10 ! tobias 74: cvs_buf_puts(buf, repo);
1.1 joris 75: cvs_buf_putc(buf, ' ');
76: }
77:
78: if (*format == '\0')
79: return 0;
80:
1.7 joris 81: /*
82: * check like this, add only uses loginfo for directories anyway
83: */
84: if (cvs_cmdop == CVS_OP_ADD) {
1.10 ! tobias 85: cvs_buf_puts(buf, "- New directory");
1.8 joris 86: if (quote)
87: cvs_buf_putc(buf, '"');
88: return (0);
89: }
90:
91: if (cvs_cmdop == CVS_OP_IMPORT) {
1.10 ! tobias 92: cvs_buf_puts(buf, "- Imported sources");
1.7 joris 93: if (quote)
94: cvs_buf_putc(buf, '"');
95: return (0);
96: }
97:
1.1 joris 98: for (;;) {
99: for (p = format; *p != '\0';) {
100: val = NULL;
101:
102: switch (*p) {
103: case '%':
104: val = "%";
105: break;
106: case 'b':
107: if (fi != NULL) {
108: valbuf[0] = fi->tag_type;
109: val = valbuf;
110: }
111: break;
112: case 'o':
113: if (fi != NULL)
114: val = fi->tag_op;
115: break;
116: case 'p':
117: val = current_cvsroot->cr_dir;
118: break;
119: case 'r':
120: val = repo;
121: break;
122: case 'l':
123: case 'S':
124: case 's':
1.6 joris 125: if (fi != NULL) {
126: val = basename(fi->file_path);
127: if (val == NULL) {
128: fatal("basename: %s",
129: strerror(errno));
130: }
131: }
1.1 joris 132: break;
133: case 't':
134: if (fi != NULL)
135: val = fi->tag_new;
136: break;
137: case 'V':
1.5 joris 138: if (fi != NULL) {
1.7 joris 139: if (fi->crevstr != NULL &&
140: !strcmp(fi->crevstr,
1.5 joris 141: "Non-existent"))
142: val = "NONE";
143: else
144: val = fi->crevstr;
145: }
1.1 joris 146: break;
147: case 'v':
148: if (fi != NULL)
149: val = fi->nrevstr;
150: break;
151: default:
152: return 1;
153: }
154:
155: if (val != NULL)
1.10 ! tobias 156: cvs_buf_puts(buf, val);
1.1 joris 157:
158: if (*(++p) != '\0')
159: cvs_buf_putc(buf, ',');
160: }
161:
162: if (fi != NULL)
163: fi = TAILQ_NEXT(fi, flist);
164: if (fi == NULL)
165: break;
166:
167: if (strlen(format) == 1 && (*format == '%' || *format == 'o' ||
168: *format == 'p' || *format == 'r' || *format == 't'))
169: break;
170:
171: cvs_buf_putc(buf, ' ');
172: }
173:
174: if (quote)
175: cvs_buf_putc(buf, '"');
176:
177: return 0;
178: }
179:
180: static char *
181: parse_cmd(int type, char *cmd, const char *repo,
182: struct file_info_list *file_info)
183: {
184: int expanded = 0;
185: char argbuf[2] = { '\0', '\0' };
1.9 tobias 186: char *allowed_args, *default_args, *args, *file, *p, *q = NULL;
1.1 joris 187: size_t pos;
188: BUF *buf;
189:
190: switch (type) {
191: case CVS_TRIGGER_COMMITINFO:
192: allowed_args = "prsS{}";
193: default_args = " %p/%r %S";
1.9 tobias 194: file = CVS_PATH_COMMITINFO;
1.1 joris 195: break;
196: case CVS_TRIGGER_LOGINFO:
1.4 joris 197: allowed_args = "prsSvVt{}";
1.1 joris 198: default_args = NULL;
1.9 tobias 199: file = CVS_PATH_LOGINFO;
1.1 joris 200: break;
201: case CVS_TRIGGER_VERIFYMSG:
202: allowed_args = "l";
203: default_args = " %l";
1.9 tobias 204: file = CVS_PATH_VERIFYMSG;
1.1 joris 205: break;
206: case CVS_TRIGGER_TAGINFO:
207: allowed_args = "btoprsSvV{}";
208: default_args = " %t %o %p/%r %{sv}";
1.9 tobias 209: file = CVS_PATH_TAGINFO;
1.1 joris 210: break;
211: default:
212: return (NULL);
213: }
214:
215: /* XXX move this out of this function */
216: /* before doing any stuff, check if the command starts with % */
217: for (p = cmd; *p != '%' && !isspace(*p) && *p != '\0'; p++)
218: ;
219: if (*p == '%')
220: return (NULL);
221:
222: buf = cvs_buf_alloc(1024);
223:
224: p = cmd;
225: again:
226: for (; *p != '\0'; p++) {
227: if ((pos = strcspn(p, "%")) != 0) {
228: cvs_buf_append(buf, p, pos);
229: p += pos;
230: }
231:
232: if (*p++ == '\0')
233: break;
234:
235: q = NULL;
236: switch (*p) {
237: case '\0':
238: goto bad;
239: case '{':
240: if (strchr(allowed_args, '{') == NULL)
241: goto bad;
242: pos = strcspn(++p, "}");
243: if (p[pos] == '\0')
244: goto bad;
245: q = xmalloc(pos + 1);
246: memcpy(q, p, pos);
247: q[pos] = '\0';
248: args = q;
249: p += pos;
250: break;
251: default:
252: argbuf[0] = *p;
253: args = argbuf;
254: break;
255: }
256:
257: if (expand_args(buf, file_info, repo, allowed_args, args))
258: goto bad;
259: expanded = 1;
260:
261: if (q != NULL)
262: xfree(q);
263: }
264:
265: if (!expanded && default_args != NULL) {
266: p = default_args;
267: expanded = 1;
268: goto again;
269: }
270:
271: cvs_buf_putc(buf, '\0');
272: return (cvs_buf_release(buf));
273:
274: bad:
275: if (q != NULL)
276: xfree(q);
1.9 tobias 277: cvs_log(LP_NOTICE, "%s contains malformed command '%s'", file, cmd);
1.1 joris 278: cvs_buf_free(buf);
279: return (NULL);
280: }
281:
282: int
283: cvs_trigger_handle(int type, char *repo, char *in, struct trigger_list *list,
284: struct file_info_list *files)
285: {
286: int r;
287: char *cmd;
288: struct trigger_line *line;
289:
290: TAILQ_FOREACH(line, list, flist) {
291: cmd = parse_cmd(type, line->line, repo, files);
292: if (cmd != NULL) {
293: switch(type) {
294: case CVS_TRIGGER_COMMITINFO:
295: case CVS_TRIGGER_TAGINFO:
296: case CVS_TRIGGER_VERIFYMSG:
297: if ((r = cvs_exec(cmd, NULL, 1)) != 0) {
298: xfree(cmd);
299: return r;
300: }
301: break;
302: default:
303: (void)cvs_exec(cmd, in, 1);
304: break;
305: }
306: xfree(cmd);
307: }
308: }
309:
310: return 0;
311: }
312:
313: struct trigger_list *
314: cvs_trigger_getlines(char * file, char * repo)
315: {
316: FILE *fp;
317: int allow_all, lineno, match = 0;
318: size_t len;
319: regex_t preg;
320: struct trigger_list *list;
321: struct trigger_line *tline;
322: char fpath[MAXPATHLEN];
323: char *currentline, *defaultline = NULL, *nline, *p, *q, *regex;
324:
325: list = xmalloc(sizeof(*list));
326: TAILQ_INIT(list);
327:
328: if (strcmp(file, CVS_PATH_EDITINFO) == 0 ||
329: strcmp(file, CVS_PATH_VERIFYMSG) == 0)
330: allow_all = 0;
331: else
332: allow_all = 1;
333:
334: (void)xsnprintf(fpath, MAXPATHLEN, "%s/%s", current_cvsroot->cr_dir,
335: file);
336:
337: if ((fp = fopen(fpath, "r")) == NULL) {
338: if (errno != ENOENT)
339: cvs_log(LP_ERRNO, "cvs_trigger_getlines: %s", file);
340: return (NULL);
341: }
342:
343: lineno = 0;
344: nline = NULL;
1.2 joris 345: while ((currentline = fgetln(fp, &len)) != NULL) {
1.1 joris 346: if (currentline[len - 1] == '\n') {
347: currentline[len - 1] = '\0';
348: } else {
349: nline = xmalloc(len + 1);
350: memcpy(nline, currentline, len);
351: nline[len] = '\0';
352: currentline = nline;
353: }
354:
355: lineno++;
356:
357: for (p = currentline; isspace(*p); p++)
358: ;
359:
360: if (*p == '\0' || *p == '#')
361: continue;
362:
363: for (q = p; !isspace(*q) && *q != '\0'; q++)
364: ;
365:
366: if (*q == '\0')
367: goto bad;
368:
369: /* XXX why do you check *p (regex)? */
370: if (*p == '%')
371: goto bad;
372:
373: *q++ = '\0';
374: regex = p;
375:
376: for (; isspace(*q); q++)
377: ;
378:
379: if (*q == '\0')
380: goto bad;
381:
382: if (strcmp(regex, "ALL") == 0 && allow_all) {
383: tline = xmalloc(sizeof(*tline));
384: tline->line = xstrdup(q);
385: TAILQ_INSERT_TAIL(list, tline, flist);
386: } else if (defaultline == NULL && !match &&
387: strcmp(regex, "DEFAULT") == 0) {
388: defaultline = xstrdup(q);
389: } else if (!match) {
390: if (regcomp(&preg, regex, REG_NOSUB|REG_EXTENDED))
391: goto bad;
392:
393: if (regexec(&preg, repo, 0, NULL, 0) != REG_NOMATCH) {
394: match = 1;
395:
396: tline = xmalloc(sizeof(*tline));
397: tline->line = xstrdup(q);
398: TAILQ_INSERT_HEAD(list, tline, flist);
399: }
400: regfree(&preg);
401: }
402: }
1.2 joris 403:
1.1 joris 404: if (nline != NULL)
405: xfree(nline);
406:
407: if (defaultline != NULL) {
408: if (!match) {
409: tline = xmalloc(sizeof(*tline));
410: tline->line = defaultline;
411: TAILQ_INSERT_HEAD(list, tline, flist);
412: } else
413: xfree(defaultline);
414: }
415:
416: if (TAILQ_EMPTY(list)) {
417: xfree(list);
418: list = NULL;
419: }
420:
421: return (list);
422:
423: bad:
424: cvs_log(LP_NOTICE, "%s: malformed line %d", file, lineno);
425:
426: if (defaultline != NULL)
427: xfree(defaultline);
428: cvs_trigger_freelist(list);
429:
430: return (NULL);
431: }
432:
433: void
434: cvs_trigger_freelist(struct trigger_list * list)
435: {
436: struct trigger_line *line;
437:
438: while ((line = TAILQ_FIRST(list)) != NULL) {
439: TAILQ_REMOVE(list, line, flist);
440: xfree(line->line);
441: xfree(line);
442: }
443:
444: xfree(list);
445: }
446:
447: void
448: cvs_trigger_freeinfo(struct file_info_list * list)
449: {
450: struct file_info * fi;
451:
452: while ((fi = TAILQ_FIRST(list)) != NULL) {
453: TAILQ_REMOVE(list, fi, flist);
454:
455: if (fi->file_path != NULL)
456: xfree(fi->file_path);
457: if (fi->file_wd != NULL)
458: xfree(fi->file_wd);
459: if (fi->crevstr != NULL)
460: xfree(fi->crevstr);
461: if (fi->nrevstr != NULL)
462: xfree(fi->nrevstr);
463: if (fi->tag_new != NULL)
464: xfree(fi->tag_new);
465: if (fi->tag_old != NULL)
466: xfree(fi->tag_old);
467:
468: xfree(fi);
469: }
470: }
471:
472: void
473: cvs_trigger_loginfo_header(BUF *buf, char *repo)
474: {
475: char *dir, pwd[MAXPATHLEN];
476: char hostname[MAXHOSTNAMELEN];
477:
478: if (gethostname(hostname, sizeof(hostname)) == -1) {
479: fatal("cvs_trigger_loginfo_header: gethostname failed %s",
480: strerror(errno));
481: }
482:
483: if (getcwd(pwd, sizeof(pwd)) == NULL)
484: fatal("cvs_trigger_loginfo_header: Cannot get working "
485: "directory");
486:
487: if ((dir = dirname(pwd)) == NULL) {
488: fatal("cvs_trigger_loginfo_header: dirname failed %s",
489: strerror(errno));
490: }
491:
492: cvs_buf_puts(buf, "Update of ");
493: cvs_buf_puts(buf, current_cvsroot->cr_dir);
494: cvs_buf_putc(buf, '/');
495: cvs_buf_puts(buf, repo);
496: cvs_buf_putc(buf, '\n');
497:
498: cvs_buf_puts(buf, "In directory ");
499: cvs_buf_puts(buf, hostname);
500: cvs_buf_puts(buf, ":");
501: cvs_buf_puts(buf, dirname(pwd));
502: cvs_buf_putc(buf, '/');
503: cvs_buf_puts(buf, repo);
504: cvs_buf_putc(buf, '\n');
505: cvs_buf_putc(buf, '\n');
506: }
507: