Commit | Line | Data |
---|---|---|
f8beb284 MW |
1 | /*$Id: ezmlm-cgi.c,v 1.17 1999/12/24 04:21:26 lindberg Exp $*/ |
2 | /*$Name: ezmlm-idx-040 $*/ | |
3 | ||
4 | /* Please leave. Will hopefully help pay for further improvement. */ | |
5 | #define EZ_CRIGHT "<a href=\"http://www.lindeinc.com\">(c) 1999 Lin-De, Inc</a>" | |
6 | /******/ | |
7 | #include <sys/types.h> | |
8 | #include "direntry.h" | |
9 | #include "datetime.h" | |
10 | #include "now.h" | |
11 | #include "stralloc.h" | |
12 | #include "strerr.h" | |
13 | #include "error.h" | |
14 | #include "env.h" | |
15 | #include "sig.h" | |
16 | #include "open.h" | |
17 | #include "getln.h" | |
18 | #include "case.h" | |
19 | #include "scan.h" | |
20 | #include "str.h" | |
21 | #include "fmt.h" | |
22 | #include "readwrite.h" | |
23 | #include "fork.h" | |
24 | #include "wait.h" | |
25 | #include "exit.h" | |
26 | #include "substdio.h" | |
27 | #include "getconf.h" | |
28 | #include "gen_alloc.h" | |
29 | #include "gen_allocdefs.h" | |
30 | #include "constmap.h" | |
31 | #include "byte.h" | |
32 | #include "subscribe.h" | |
33 | #include "errtxt.h" | |
34 | #include "makehash.h" | |
35 | #include "mime.h" | |
36 | #include "idx.h" | |
37 | #include "yyyymm.h" | |
38 | ||
39 | #define FATAL "ezmlm-cgi: fatal: " | |
40 | #define GET "-getv" | |
41 | #define THREAD "-threadv" | |
42 | #define SUBSCRIBE "-subscribe" | |
43 | #define FAQ "-faq" | |
44 | #define TXT_CGI_SUBSCRIBE "\">[eSubscribe]</a>\n" | |
45 | #define TXT_CGI_FAQ "\">[eFAQ]</a>\n" | |
46 | ||
47 | int flagshowhtml = 1; /* show text/html parts. This leads to duplication */ | |
48 | /* when both text/plain and text/html are in a */ | |
49 | /* multipart/alternative message, but it is assumed*/ | |
50 | /* that text/html is not frivolous, but only used */ | |
51 | /* when the formatting is important. */ | |
52 | int flagobscure = 0; /* Don't remove Sender's E-mail address in message */ | |
53 | /* view. Overridden by config file (- before list */ | |
54 | /* name). */ | |
55 | ||
56 | /**************** Header processing ***********************/ | |
57 | char headers_used[] = "Subject\\From\\Date\\content-type\\" | |
58 | "content-transfer-encoding\\mime-version"; | |
59 | /* index of headers displayed (shown in order listed above) */ | |
60 | int headers_shown[] = {1,1,1,0,0,0}; | |
61 | /* index of specific headers */ | |
62 | #define NO_HDRS 6 | |
63 | #define HDR_SUBJECT 1 | |
64 | #define HDR_FROM 2 | |
65 | #define HDR_CT 4 | |
66 | #define HDR_CTENC 5 | |
67 | #define HDR_VERSION 6 | |
68 | ||
69 | /* Need to add inits if you increase NO_HDRS */ | |
70 | stralloc hdr[NO_HDRS] = { {0},{0},{0},{0},{0},{0} }; | |
71 | /**************** Header processing ***********************/ | |
72 | ||
73 | ||
74 | /* index of subject in above, first = 1 */ | |
75 | ||
76 | /* TODO: Sort headers before display. Find a way to display the body with the*/ | |
77 | /* correct charset, ideally letting the browser do the work (should really */ | |
78 | /* be able to specify charset for DIV ! */ | |
79 | ||
80 | /* ulong at least 32 bits. (Creating a Year 0xffffff problem ;-) */ | |
81 | #define MAXULONG 0xffffffff | |
82 | ||
83 | char cmdstr[5] = "xxx:"; | |
84 | #define ITEM "-msadiz" | |
85 | #define ITEM_MESSAGE 1 | |
86 | #define ITEM_SUBJECT 2 | |
87 | #define ITEM_AUTHOR 3 | |
88 | #define ITEM_DATE 4 | |
89 | #define ITEM_INDEX 5 | |
90 | ||
91 | #define DIRECT "psnpn" | |
92 | #define DIRECT_SAME 0 | |
93 | #define DIRECT_NEXT 1 | |
94 | #define DIRECT_PREV -1 | |
95 | /* use only as the argument for some functions. Terrible hack for date links */ | |
96 | #define DIRECT_FIRST 3 | |
97 | #define DIRECT_LAST 2 | |
98 | ||
99 | char *dir = 0; | |
100 | char *local = 0; | |
101 | char *host = 0; | |
102 | char *home = 0; | |
103 | char *banner = 0; | |
104 | char *charset = 0; | |
105 | char *stylesheet = 0; | |
106 | char *cmd; | |
107 | char strnum[FMT_ULONG]; | |
108 | /* these are the only headers we really care about for message display */ | |
109 | /* one can always retrieve the complete message by E-mail */ | |
110 | stralloc charg = {0}; | |
111 | stralloc url = {0}; | |
112 | stralloc author = {0}; | |
113 | stralloc subject = {0}; | |
114 | stralloc base = {0}; | |
115 | stralloc line = {0}; | |
116 | stralloc decline = {0}; /* for rfc2047-decoded headers and QP/base64 */ | |
117 | stralloc cfline = {0}; /* from config file */ | |
118 | stralloc fn = {0}; | |
119 | stralloc dtline = {0}; | |
120 | stralloc headers = {0}; | |
121 | stralloc encoding = {0}; | |
122 | stralloc content = {0}; | |
123 | stralloc charsetbase = {0}; | |
124 | stralloc curcharset = {0}; | |
125 | stralloc sainit = {0}; | |
126 | struct constmap headermap; | |
127 | unsigned long uid,euid; | |
128 | int recursion_level; | |
129 | int so = 0; | |
130 | int ss23 = 0; | |
131 | int state = 0; | |
132 | int newlevel; | |
133 | int match; /* used everywhere and no overlap */ | |
134 | int fd; /* same; never >1 open */ | |
135 | int cache; /* 0 = don't; 1 = don't know; 2 = do */ | |
136 | int child,wstat; | |
137 | int flagtoplevel; | |
138 | unsigned int flagmime; | |
139 | unsigned int cs,csbase; | |
140 | int flagrobot; | |
141 | int flagpre; | |
142 | int precharcount; | |
143 | char cn1 = 0; | |
144 | char cn2 = 0; | |
145 | char lastjp[] = "B"; /* to get back to the correct JP after line break */ | |
146 | char *bannerargs[4]; | |
147 | ||
148 | ||
149 | mime_info *mime_current = 0; | |
150 | mime_info *mime_tmp = 0; | |
151 | ||
152 | datetime_sec when; | |
153 | struct datetime dt; | |
154 | ||
155 | char inbuf[4096]; | |
156 | substdio ssin; | |
157 | ||
158 | void die_nomem() { strerr_die2x(111,FATAL,ERR_NOMEM); } | |
159 | ||
160 | void die_syntax(char *s) | |
161 | { | |
162 | strerr_die4x(100,FATAL,ERR_SYNTAX,"config file: ",s); | |
163 | } | |
164 | ||
165 | char outbuf[4096]; | |
166 | substdio ssout = SUBSTDIO_FDBUF(write,1,outbuf,sizeof(outbuf)); | |
167 | ||
168 | void oput(register char *s, register unsigned int l) | |
169 | /* unbuffered. Avoid extra copy as httpd buffers */ | |
170 | { | |
171 | if (substdio_put(&ssout,s,l) == -1) | |
172 | strerr_die3sys(111,FATAL,ERR_WRITE,"stdout: "); | |
173 | } | |
174 | ||
175 | void oputs(register char *s) | |
176 | { | |
177 | oput(s,str_len(s)); | |
178 | } | |
179 | ||
180 | /* this error is for things that happen only if program logic is screwed up */ | |
181 | void die_prog(char *s) { strerr_die5x(100,FATAL,"program error (please send bug report to bugs@ezmlm.org): ",s," Command: ",cmd); } | |
182 | ||
183 | /* If we already issued a header than this will look ugly */ | |
184 | void cgierr(char *s,char *s1,char *s2) | |
185 | { | |
186 | strerr_warn4(FATAL,s,s1,s2,(struct strerr *)0); | |
187 | oputs("Content-type: text/plain\n"); | |
188 | oputs("Status: 500 Couldn't do it\n\n"); | |
189 | oputs("I tried my best, but:\n\n"); | |
190 | if (s) oputs(s); | |
191 | if (s1) oputs(s1); | |
192 | if (s2) oputs(s2); | |
193 | oputs("\n"); | |
194 | substdio_flush(&ssout); | |
195 | _exit(0); | |
196 | } | |
197 | ||
198 | unsigned long msgnav[5]; /* 0 prev prev 1 prev 2 this 3 next 4 next-next */ | |
199 | ||
200 | struct msginfo { /* clean info on the target message */ | |
201 | char item; /* What we want */ | |
202 | char direction; /* Relation to current msg */ | |
203 | char axis; /* Axis of desired movement [may be calculated] */ | |
204 | unsigned long source; /* reference message number */ | |
205 | unsigned long target; | |
206 | unsigned long date; | |
207 | unsigned long *authnav; /* msgnav structure */ | |
208 | unsigned long *subjnav; /* msgnav structure */ | |
209 | char *author; | |
210 | char *subject; | |
211 | char *cgiarg; /* sub/auth as expected from axis */ | |
212 | } msginfo; | |
213 | ||
214 | void toggle_flagpre(int flag) | |
215 | { | |
216 | flagpre = flag; | |
217 | precharcount = 0; | |
218 | cn1 = 0; cn2 = 0; /* just in case */ | |
219 | } | |
220 | ||
221 | unsigned int decode_charset(register char *s, register unsigned int l) | |
222 | /* return charset code. CS_BAD means that base charset should be used, i.e. */ | |
223 | /* that charset is empty or likely invalid. CS_NONE are charsets for which */ | |
224 | /* we don't need to do anything special. */ | |
225 | { | |
226 | unsigned int r; | |
227 | ||
228 | if (case_startb(s,l,"iso-8859") || case_startb(s,l,"us-ascii") || | |
229 | case_startb(s,l,"utf")) /* at the moment, we can do utf-8 right */ | |
230 | return CS_NONE; /* what is utf-7 (used by OE)? */ | |
231 | if (case_startb(s,l,"x-cp") || | |
232 | case_startb(s,l,"cp") || | |
233 | case_startb(s,l,"x-mac") || | |
234 | case_startb(s,l,"koi8")) return CS_NONE; | |
235 | if (!l || *s == 'x' || *s == 'X') return CS_BAD; | |
236 | if (case_startb(s,l,"iso-2022")) { | |
237 | if (case_startb(s+8,l-8,"-cn")) | |
238 | return CS_2022_CN; | |
239 | if (case_startb(s+8,l-8,"-jp")) | |
240 | return CS_2022_JP; | |
241 | return CS_2022_KR; | |
242 | } | |
243 | if (case_startb(s,l,"cn-") || | |
244 | case_startb(s,l,"hz-gb") || | |
245 | case_startb(s,l,"gb") || | |
246 | case_startb(s,l,"big5")) | |
247 | return CS_CN; /* Only consideration for linebreak */ | |
248 | if (case_startb(s,l,"iso_8859") || | |
249 | case_startb(s,l,"latin") || | |
250 | case_startb(s,l,"windows")) return CS_NONE; | |
251 | /* Add other charsets here. Later we will add code to replace a detected */ | |
252 | /* charset name with another, and to connect conversion routines, such as */ | |
253 | /* between windows-1251/koi-8r/iso-8859-5 */ | |
254 | return CS_BAD; | |
255 | } | |
256 | ||
257 | void htmlencode_put (register char *s,register unsigned int l) | |
258 | /* At this time, us-ascii, iso-8859-? create no problems. We just encode */ | |
259 | /* some html chars. iso-2022 may have these chars as character components.*/ | |
260 | /* cs is set for these, 3 for CN, 2 for others. Bit 0 set means 2 byte */ | |
261 | /* chars for SS2/SS3 shiftouts (JP doesn't use them, KR has single byte. */ | |
262 | /* If cs is set and we're shifted out (so set) we don't substitute. We */ | |
263 | /* also look for SI/SO to adjust so, and ESC to detect SS2/SS3. Need to */ | |
264 | /* ignore other ESC seqs correctly. JP doesn't use SI/SO, but uses */ | |
265 | /* ESC ( B/J and ESC $ B/@ analogously, so we use these to toggle so. */ | |
266 | /* "Roman", i.e. ESC ( J is treated as ascii - no differences in html- */ | |
267 | /* relevant chars. Together, this allows us to deal with all iso-2022-* */ | |
268 | /* as a package. see rfc1468, 1554, 1557, 1922 for more info. */ | |
269 | /* line break at 84 to avoid splits with lines just a little too long. */ | |
270 | { | |
271 | if (!cs) { /* us-ascii & iso-8859- & unrecognized */ | |
272 | for (;l--;s++) { | |
273 | precharcount++; | |
274 | switch (*s) { | |
275 | case '>': oputs(">"); break; | |
276 | case '<': oputs("<"); break; | |
277 | case '"': oputs("""); break; | |
278 | case '&': oputs("&"); break; | |
279 | case '\n': precharcount = 0; oput(s,1); break; | |
280 | case ' ': | |
281 | if (precharcount >= 84 && flagpre) { | |
282 | oput("\n",1); /* in place of ' ' */ | |
283 | precharcount = 0; | |
284 | } else | |
285 | oput(s,1); /* otherwise out with it. */ | |
286 | break; | |
287 | default: oput(s,1); break; | |
288 | } | |
289 | } | |
290 | } else if (cs == CS_CN) { /* cn-, gb*, big5 */ | |
291 | for (;l--;s++) { | |
292 | precharcount++; | |
293 | if (cn1) { cn2 = cn1; cn1 = 0; } /* this is byte 2 */ | |
294 | else { cn2 = 0; cn1 = *s & 0x80; } /* this is byte 1/2 or ascii */ | |
295 | if (!cn1 && !cn2) { /* ascii */ | |
296 | switch (*s) { | |
297 | case '>': oputs(">"); break; | |
298 | case '<': oputs("<"); break; | |
299 | case '"': oputs("""); break; | |
300 | case '&': oputs("&"); break; | |
301 | case '\n': precharcount = 0; oput(s,1); break; | |
302 | case ' ': | |
303 | if (precharcount >= 84 && flagpre) { | |
304 | oput("\n",1); /* break in ascii sequence */ | |
305 | precharcount = 0; | |
306 | } else | |
307 | oput(s,1); | |
308 | break; | |
309 | default: oput(s,1); break; | |
310 | } | |
311 | } else if (precharcount >= 84 && flagpre && cn2) { | |
312 | oput("\n",1); /* break after 2-byte code */ | |
313 | precharcount = 0; | |
314 | } | |
315 | } | |
316 | } else { /* iso-2022 => PAIN! */ | |
317 | for (;l--;s++) { | |
318 | precharcount++; | |
319 | if (ss23) { /* ss2/ss3 character */ | |
320 | ss23--; | |
321 | oput(s,1); | |
322 | continue; | |
323 | } | |
324 | if (so) { /* = 0 ascii, = 1 SO charset */ | |
325 | if (!(*s & 0xe0)) { /* ctrl-char */ | |
326 | switch (*s) { | |
327 | case ESC: state = 1; break; | |
328 | case SI: so = 0; break; | |
329 | case '\n': precharcount = 0; break; | |
330 | default: break; | |
331 | } | |
332 | } | |
333 | oput(s,1); | |
334 | } else { /* check only ascii */ | |
335 | switch (*s) { | |
336 | case '>': oputs(">"); break; | |
337 | case '<': oputs("<"); break; | |
338 | case '"': oputs("""); break; | |
339 | case '&': oputs("&"); break; | |
340 | case ' ': | |
341 | if (precharcount >= 84 && flagpre) { | |
342 | oput("\n",1); /* break in ascii sequence */ | |
343 | precharcount = 0; | |
344 | } else | |
345 | oput(s,1); | |
346 | break; | |
347 | default: | |
348 | oput(s,1); | |
349 | if (!(*s & 0xe0)) { | |
350 | switch (*s) { | |
351 | case SO: so = 1; break; | |
352 | case ESC: state = 1; break; | |
353 | case SI: so = 0; break; /* shouldn't happen */ | |
354 | case '\n': precharcount = 0; break; | |
355 | default: break; | |
356 | } | |
357 | } | |
358 | } | |
359 | } /* by now all output is done, now ESC interpretation */ | |
360 | if (state) { | |
361 | /* ESC code - don't count */ | |
362 | if (precharcount) precharcount--; | |
363 | state++; | |
364 | switch (state) { | |
365 | case 2: break; /* this was the ESC */ | |
366 | case 3: switch (*s) { | |
367 | case 'N': ss23 = (cs & 1) + 1; state = 0; break; | |
368 | case 'O': ss23 = 2; state = 0; break; | |
369 | case '(': state = 20; so = 0; break; /* JP ascii */ | |
370 | case '$': break; /* var S2/SS2/SS3 des*/ | |
371 | case '.': state = 10; /* g3 settings, one more char */ | |
372 | default: state = 0; break; /* or JP */ | |
373 | } | |
374 | break; | |
375 | case 4: switch (*s) { /* s2/ss2/ss3 or JP 2 byte shift */ | |
376 | case 'B': | |
377 | case '@': lastjp[0] = *s; | |
378 | so = 1; state = 0; break; /* JP */ | |
379 | default: break; /* other SS2/3 des */ | |
380 | } | |
381 | break; | |
382 | case 5: state = 0; break; /* 4th char of ESC $ *|+|) X */ | |
383 | case 11: state = 0; break; /* 3nd char of ESC . */ | |
384 | case 21: state = 0; break; /* ESC ( X for JP */ | |
385 | default: die_prog("bad state in htmlencode_put"); break; | |
386 | } | |
387 | } else if (so && flagpre && precharcount >= 84) { | |
388 | /* 84 is nicer than 78/80 since most use GUI browser */ | |
389 | /* iso-2022-* line splitter here. SO only, SI done above */ | |
390 | /* For JP need even precharcount, add ESC ( B \n ESC $B */ | |
391 | if (so && !(precharcount & 1)) { /* even */ | |
392 | precharcount = 0; /* reset */ | |
393 | if (cs == CS_2022_JP) { /* JP uses ESC like SI/SO */ | |
394 | oputs(TOASCII); | |
395 | oput("\n",1); | |
396 | oputs(TOJP); | |
397 | oput(lastjp,1); | |
398 | } else { | |
399 | if (so) { | |
400 | /* For iso-2022-CN: nothing if SI, otherwise SI \n SO */ | |
401 | /* For iso-2022-KR same */ | |
402 | oputs(SI_LF_SO); | |
403 | } else | |
404 | oput("\n",1); | |
405 | } | |
406 | } | |
407 | } | |
408 | } | |
409 | } | |
410 | } | |
411 | ||
412 | char hexchar[] = "0123456789ABCDEF"; | |
413 | char enc_url[] = "%00"; | |
414 | ||
415 | void urlencode_put (register char *s,register unsigned int l) | |
416 | { | |
417 | for (;l--;s++) { | |
418 | register unsigned char ch; | |
419 | ch = (unsigned char) *s; | |
420 | if (ch <= 32 || ch > 127 || byte_chr("?<>=/:%+#\"",10,ch) != 10) { | |
421 | enc_url[2] = hexchar[ch & 0xf]; | |
422 | enc_url[1] = hexchar[(ch >> 4) & 0xf]; | |
423 | oput(enc_url,3); | |
424 | } else | |
425 | oput(s,1); | |
426 | } | |
427 | } | |
428 | ||
429 | void urlencode_puts(register char *s) | |
430 | { | |
431 | urlencode_put(s,str_len(s)); | |
432 | } | |
433 | ||
434 | int checkhash(register char *s) | |
435 | { | |
436 | register int l = HASHLEN; | |
437 | while (l--) { | |
438 | if (*s < 'a' || *s > 'p') return 0; /* illegal */ | |
439 | s++; | |
440 | } | |
441 | if (*s) return 0; /* extraneous junk */ | |
442 | return 1; | |
443 | } | |
444 | ||
445 | int makefn(stralloc *sa,char item, unsigned long n, char *hash) | |
446 | { | |
447 | if (!stralloc_copys(sa,"archive/")) die_nomem(); | |
448 | if (item == ITEM_MESSAGE) { | |
449 | if (!stralloc_catb(sa,strnum,fmt_ulong(strnum, n / 100))) die_nomem(); | |
450 | if (!stralloc_cats(sa,"/")) die_nomem(); | |
451 | if (!stralloc_catb(sa,strnum,fmt_uint0(strnum,(unsigned int) (n % 100),2))) | |
452 | die_nomem(); | |
453 | } else if (item == ITEM_DATE) { | |
454 | if (!stralloc_cats(sa,"threads/")) die_nomem(); | |
455 | if (!stralloc_catb(sa,strnum,fmt_ulong(strnum,n))) | |
456 | die_nomem(); | |
457 | } else if (item == ITEM_INDEX) { | |
458 | if (!stralloc_catb(sa,strnum,fmt_ulong(strnum, n / 100))) die_nomem(); | |
459 | if (!stralloc_cats(sa,"/index")) die_nomem(); | |
460 | } else { | |
461 | if (item == ITEM_AUTHOR) { | |
462 | if (!stralloc_cats(sa,"authors/")) die_nomem(); | |
463 | } else { | |
464 | if (!stralloc_cats(sa,"subjects/")) die_nomem(); | |
465 | } | |
466 | if (!hash) return 0; | |
467 | if (!stralloc_catb(sa,hash,2)) die_nomem(); | |
468 | if (!stralloc_cats(sa,"/")) die_nomem(); | |
469 | if (!stralloc_catb(sa,hash+2,HASHLEN-2)) die_nomem(); | |
470 | } | |
471 | if (!stralloc_0(sa)) die_nomem(); | |
472 | return 1; | |
473 | } | |
474 | ||
475 | void link(struct msginfo *infop,char item,char axis,unsigned long msg, | |
476 | char *data,unsigned int l) | |
477 | /* links with targets other msg -> msg. If the link is for author, we */ | |
478 | /* still supply subject, since most navigation at the message level will */ | |
479 | /* be along threads rather than author and we don't have an author index.*/ | |
480 | { | |
481 | char *cp; | |
482 | ||
483 | cp = (char *) 0; | |
484 | /* this should be separate routine. Works because all index views */ | |
485 | /* have at least a subject link */ | |
486 | if (axis == ITEM_SUBJECT && infop->target == msg) | |
487 | oputs("<a name=b></a>"); | |
488 | oput(url.s,url.len); | |
489 | cmdstr[0] = ITEM[item]; | |
490 | cmdstr[1] = ITEM[axis]; | |
491 | cmdstr[2] = DIRECT[DIRECT_SAME + 1]; | |
492 | if (item == ITEM_MESSAGE && axis == ITEM_AUTHOR) { | |
493 | if (infop->subject) { | |
494 | cmdstr[1] = ITEM[ITEM_SUBJECT]; | |
495 | cp = infop->subject; /* always HASLEN in length due to decode_cmd */ | |
496 | } | |
497 | } | |
498 | oputs(cmdstr); /* e.g. map: */ | |
499 | oput(strnum,fmt_ulong(strnum,msg)); | |
500 | if (!cp && l >= HASHLEN) | |
501 | cp = data; | |
502 | if (infop->date) { | |
503 | oput(":",1); | |
504 | oput(strnum,fmt_ulong(strnum,infop->date)); | |
505 | } | |
506 | if (cp) { | |
507 | oput(":",1); | |
508 | oput(cp,HASHLEN); | |
509 | } | |
510 | switch (item) { | |
511 | case ITEM_MESSAGE: oputs("\" class=mlk>"); break; | |
512 | case ITEM_AUTHOR: oputs("#b\" class=alk>"); break; | |
513 | case ITEM_SUBJECT: oputs("#b\" class=slk>"); break; | |
514 | default: oputs("#b\">"); break; | |
515 | } | |
516 | if (HASHLEN + 1 < l) | |
517 | htmlencode_put(data + HASHLEN + 1,l - HASHLEN - 1); | |
518 | else | |
519 | oputs("(none)"); | |
520 | oputs("</A>"); | |
521 | } | |
522 | ||
523 | void linktoindex(struct msginfo *infop,char item) | |
524 | /* for links from message view back to author/subject/threads index */ | |
525 | { | |
526 | oput(url.s,url.len); | |
527 | cmdstr[0] = ITEM[item]; | |
528 | cmdstr[1] = ITEM[item]; | |
529 | cmdstr[2] = DIRECT[DIRECT_SAME + 1]; | |
530 | oputs(cmdstr); /* e.g. map: */ | |
531 | oput(strnum,fmt_ulong(strnum,infop->target)); | |
532 | if (infop->date) { | |
533 | oput(":",1); | |
534 | oput(strnum,fmt_ulong(strnum,infop->date)); | |
535 | } | |
536 | switch (item) { | |
537 | case ITEM_AUTHOR: | |
538 | if (infop->author) { | |
539 | oput(":",1); | |
540 | oputs(infop->author); | |
541 | } | |
542 | break; | |
543 | case ITEM_SUBJECT: | |
544 | if (infop->subject) { | |
545 | oput(":",1); | |
546 | oputs(infop->subject); | |
547 | } | |
548 | break; | |
549 | default: | |
550 | break; | |
551 | } | |
552 | oputs("#b\""); | |
553 | } | |
554 | ||
555 | void link_msg(struct msginfo *infop,char axis,char direction) | |
556 | /* Creates <a href="mapa:123:aaaaa...."> using a maximum of available */ | |
557 | /* info only for links where the target is a message */ | |
558 | { | |
559 | unsigned long msg; | |
560 | char *acc; | |
561 | oput(url.s,url.len); | |
562 | cmdstr[0] = ITEM[ITEM_MESSAGE]; | |
563 | cmdstr[1] = ITEM[axis]; | |
564 | cmdstr[2] = DIRECT[direction + 1]; | |
565 | msg = infop->target; | |
566 | acc = 0; | |
567 | switch(axis) { | |
568 | case ITEM_SUBJECT: | |
569 | if (infop->subject) | |
570 | acc = infop->subject; | |
571 | if (infop->subjnav) /* translate to message navigation */ | |
572 | if (infop->subjnav[direction]) { | |
573 | msg = infop->subjnav[direction]; | |
574 | cmdstr[2] = DIRECT[DIRECT_SAME + 1]; | |
575 | } | |
576 | acc = infop->subject; | |
577 | break; | |
578 | case ITEM_AUTHOR: | |
579 | if (infop->author) | |
580 | acc = infop->author; | |
581 | if (infop->authnav) /* translate to message navigation */ | |
582 | if (infop->authnav[direction]) { | |
583 | msg = infop->authnav[direction]; | |
584 | cmdstr[2] = DIRECT[DIRECT_SAME + 1]; | |
585 | } | |
586 | acc = infop->author; | |
587 | break; | |
588 | default: | |
589 | break; | |
590 | } | |
591 | oputs(cmdstr); | |
592 | oput(strnum,fmt_ulong(strnum,msg)); | |
593 | if (acc) { | |
594 | oputs(":"); | |
595 | oputs(acc); | |
596 | } | |
597 | oputs("\">"); | |
598 | } | |
599 | ||
600 | void justpress() | |
601 | { | |
602 | oputs("?subject="); | |
603 | urlencode_puts("Just Click \"SEND\"!"); | |
604 | } | |
605 | ||
606 | void homelink() | |
607 | { | |
608 | register char *cp,*cp1,*cp2; | |
609 | ||
610 | if (home && *home) { | |
611 | cp = home; | |
612 | for(;;) { | |
613 | cp1 = cp; | |
614 | while(*cp1 && *cp1 != '=') cp1++; | |
615 | if (!*cp1) break; | |
616 | cp2 = cp1; | |
617 | while(*cp2 && *cp2 != ',') cp2++; | |
618 | oputs("<a href=\""); | |
619 | oput(cp1 + 1,cp2 - cp1 - 1); | |
620 | oputs("\">"); | |
621 | oput(cp,cp1 - cp); | |
622 | oputs("</a>\n"); | |
623 | if (!*cp2) break; | |
624 | cp = cp2 + 1; | |
625 | } | |
626 | } | |
627 | } | |
628 | ||
629 | void subfaqlinks() | |
630 | { | |
631 | oputs("<a href=\"mailto:"); | |
632 | oputs(local); | |
633 | oputs(SUBSCRIBE); | |
634 | oputs("@"); | |
635 | oputs(host); | |
636 | justpress(); | |
637 | oputs(TXT_CGI_SUBSCRIBE); | |
638 | oputs("<a href=\"mailto:"); | |
639 | oputs(local); | |
640 | oputs(FAQ); | |
641 | oputs("@"); | |
642 | oputs(host); | |
643 | justpress(); | |
644 | oputs(TXT_CGI_FAQ); | |
645 | } | |
646 | ||
647 | void msglinks(struct msginfo *infop) | |
648 | /* Creates the html for all links from one message view */ | |
649 | { | |
650 | oputs("<DIV class=msglinks><STRONG>Msg by: "); | |
651 | link_msg(infop,ITEM_SUBJECT,DIRECT_PREV); | |
652 | oputs("[<-</A> "); | |
653 | linktoindex(infop,ITEM_SUBJECT); | |
654 | oputs(">thread</A> "); | |
655 | link_msg(infop,ITEM_SUBJECT,DIRECT_NEXT); | |
656 | oputs("->]</A> \n"); | |
657 | link_msg(infop,ITEM_MESSAGE,DIRECT_PREV); | |
658 | oputs("[<-</A> "); | |
659 | linktoindex(infop,ITEM_INDEX); | |
660 | oputs(">time</A> "); | |
661 | link_msg(infop,ITEM_MESSAGE,DIRECT_NEXT); | |
662 | oputs("->]</A> \n"); | |
663 | link_msg(infop,ITEM_AUTHOR,DIRECT_PREV); | |
664 | oputs("[<-</A> "); | |
665 | linktoindex(infop,ITEM_AUTHOR); | |
666 | oputs(">author</A> "); | |
667 | link_msg(infop,ITEM_AUTHOR,DIRECT_NEXT); | |
668 | oputs("->]</A> |\n"); | |
669 | linktoindex(infop,ITEM_DATE); | |
670 | oputs(">[Threads]</A>\n"); | |
671 | homelink(); | |
672 | oputs("\n<a href=\"mailto:"); | |
673 | oputs(local); | |
674 | oputs(GET); | |
675 | strnum[fmt_ulong(strnum,infop->target)] = '\0'; | |
676 | oputs(strnum); | |
677 | oputs("@"); | |
678 | oputs(host); | |
679 | justpress(); | |
680 | oputs("\">[eMsg]</A>\n"); | |
681 | oputs("<a href=\"mailto:"); | |
682 | oputs(local); | |
683 | oputs(THREAD); | |
684 | oputs(strnum); | |
685 | oputs("@"); | |
686 | oputs(host); | |
687 | justpress(); | |
688 | oputs("\">[eThread]</A>\n"); | |
689 | subfaqlinks(); | |
690 | oputs("</STRONG></DIV>\n"); | |
691 | } | |
692 | ||
693 | #define SPC_BASE 1 | |
694 | #define SPC_BANNER 2 | |
695 | ||
696 | void html_header(char *t,char *s, unsigned int l,char *class,int flagspecial) | |
697 | /* flagspecial: 0x1 => robot index; no style sheet, no BASE */ | |
698 | /* flagspecial: 0x2 => banner, if available */ | |
699 | { | |
700 | oputs("Content-Type: text/html; charset="); | |
701 | oput(curcharset.s,curcharset.len); | |
702 | ||
703 | oputs("\nCache-Control: "); | |
704 | switch (cache) { | |
705 | case 0: | |
706 | oputs("no-cache"); /* known upper border */ | |
707 | break; | |
708 | case 1: | |
709 | oputs("max-age=300"); /* 5 min - most lists aren't that fast*/ | |
710 | break; | |
711 | case 2: | |
712 | oputs("max-age=1209600"); /* 14 days is a long time */ | |
713 | break; | |
714 | } | |
715 | oputs("\n\n"); | |
716 | oputs("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\">\n"); | |
717 | oputs("<HTML><HEAD>\n<TITLE>"); | |
718 | if (local) { | |
719 | oputs(local); | |
720 | oputs("@"); | |
721 | oputs(host); | |
722 | oputs(": "); | |
723 | } | |
724 | if (t) oputs(t); | |
725 | if (s) htmlencode_put(s,l); | |
726 | oputs("</TITLE>\n"); | |
727 | if (class && *class && stylesheet && *stylesheet) { | |
728 | oputs("<LINK href=\""); | |
729 | oputs(stylesheet); | |
730 | oputs("\" rel=\"stylesheet\" type=\"text/css\">\n"); | |
731 | } | |
732 | if (!flagrobot) /* robot access allowed to follow */ | |
733 | oputs("<META NAME=\"robots\" CONTENT=\"noindex\">\n"); | |
734 | if (flagrobot < 2) | |
735 | oputs("<META NAME=\"robots\" CONTENT=\"nofollow\">\n"); | |
736 | if (flagspecial & SPC_BASE) | |
737 | oput(base.s,base.len); | |
738 | oputs("</HEAD>\n"); | |
739 | if (class && *class) { | |
740 | oputs("<BODY class="); | |
741 | oputs(class); | |
742 | oputs(">\n"); | |
743 | } else | |
744 | oputs("<BODY>\n"); | |
745 | ||
746 | } | |
747 | ||
748 | void html_footer(int flagspecial) | |
749 | { | |
750 | oputs("<HR><DIV class=copyright>"); | |
751 | oputs(EZ_CRIGHT); | |
752 | oputs("</DIV>"); | |
753 | if ((flagspecial & SPC_BANNER) && banner && *banner) { | |
754 | oputs("<DIV class=banner>\n"); | |
755 | if (*banner == '<') oputs(banner); | |
756 | else { | |
757 | substdio_flush(&ssout); | |
758 | sig_pipeignore(); | |
759 | bannerargs[0] = banner; | |
760 | bannerargs[1] = host; | |
761 | bannerargs[2] = local; | |
762 | bannerargs[3] = 0; | |
763 | /* We log errors but just complete the page anyway, since we're */ | |
764 | /* already committed to output something. */ | |
765 | switch(child = fork()) { | |
766 | case -1: | |
767 | strerr_warn3(FATAL,ERR_FORK,"banner program: ",&strerr_sys); | |
768 | break; | |
769 | case 0: | |
770 | execv(*bannerargs,bannerargs); | |
771 | strerr_die3x(100,FATAL,ERR_EXECUTE,"banner program: "); | |
772 | break; | |
773 | } | |
774 | /* parent */ | |
775 | wait_pid(&wstat,child); | |
776 | if (wait_crashed(wstat)) | |
777 | strerr_warn2(FATAL,ERR_CHILD_CRASHED,(struct strerr *) 0); | |
778 | if (wait_exitcode(wstat)) | |
779 | strerr_warn2(FATAL,ERR_CHILD_UNKNOWN,(struct strerr *) 0); | |
780 | } | |
781 | oputs("</DIV>\n"); | |
782 | } | |
783 | oputs("</BODY>\n</HTML>\n"); | |
784 | substdio_flush(&ssout); | |
785 | } | |
786 | ||
787 | /* DATE functions */ | |
788 | ||
789 | void datelink(struct msginfo *infop,unsigned long d,char direction) | |
790 | /* output a date with link back to thread index */ | |
791 | { | |
792 | oput(url.s,url.len); | |
793 | cmdstr[0] = ITEM[ITEM_DATE]; | |
794 | cmdstr[1] = ITEM[ITEM_DATE]; | |
795 | cmdstr[2] = DIRECT[direction + 1]; | |
796 | oputs(cmdstr); | |
797 | if (direction == DIRECT_LAST) | |
798 | oput("0",1); /* suppress msgnum to avoid going there */ | |
799 | else | |
800 | oput(strnum,fmt_ulong(strnum,infop->target)); | |
801 | oputs(":"); | |
802 | oput(strnum,fmt_ulong(strnum,d)); | |
803 | oputs("#b\">"); | |
804 | switch (direction) { | |
805 | case DIRECT_SAME: | |
806 | if (dateline(&dtline,d) < 0) die_nomem(); | |
807 | oput(dtline.s,dtline.len); | |
808 | break; | |
809 | case DIRECT_PREV: | |
810 | oputs("[<-]"); | |
811 | break; | |
812 | case DIRECT_NEXT: | |
813 | oputs("[->]"); | |
814 | break; | |
815 | case DIRECT_FIRST: | |
816 | oputs("[<<-]"); | |
817 | break; | |
818 | case DIRECT_LAST: | |
819 | oputs("[->>]"); | |
820 | break; | |
821 | } | |
822 | oputs("</A>"); | |
823 | } | |
824 | ||
825 | void finddate(struct msginfo *infop) | |
826 | /* DIRECT_SAME works as DIRECT_PREV, dvs returns previous date or last date */ | |
827 | { | |
828 | DIR *archivedir; | |
829 | direntry *d; | |
830 | unsigned long ddate, startdate; | |
831 | unsigned long below, above; | |
832 | ||
833 | below = 0L; | |
834 | above = MAXULONG; /* creating a Y 0xffffff problem */ | |
835 | startdate = infop->date; | |
836 | archivedir = opendir("archive/threads/"); | |
837 | if (!archivedir) | |
838 | if (errno != error_noent) | |
839 | strerr_die4sys(111,FATAL,ERR_OPEN,dir,"/archive/threads: "); | |
840 | else | |
841 | strerr_die4sys(100,FATAL,ERR_OPEN,dir,"/archive/threads: "); | |
842 | ||
843 | while ((d = readdir(archivedir))) { /* dxxx/ */ | |
844 | if (str_equal(d->d_name,".")) continue; | |
845 | if (str_equal(d->d_name,"..")) continue; | |
846 | scan_ulong(d->d_name,&ddate); | |
847 | if (!ddate) continue; /* just in case some smart guy ... */ | |
848 | if (startdate) { | |
849 | if (ddate > startdate && ddate < above) above = ddate; | |
850 | if (ddate < startdate && ddate > below) below = ddate; | |
851 | } else { | |
852 | if (ddate < above) above = ddate; | |
853 | if (ddate > below) below = ddate; | |
854 | } | |
855 | } | |
856 | closedir(archivedir); | |
857 | ||
858 | if (infop->direction == DIRECT_NEXT && above != MAXULONG || !below) | |
859 | /* we always give a valid date as long as there is at least one */ | |
860 | infop->date = above; | |
861 | else | |
862 | infop->date = below; | |
863 | return; | |
864 | } | |
865 | ||
866 | void latestdate(struct msginfo *infop,int flagfail) | |
867 | { | |
868 | if (!flagfail) { | |
869 | datetime_tai(&dt,now()); | |
870 | infop->date = ((unsigned long) dt.year + 1900) * 100 + dt.mon + 1; | |
871 | } else { | |
872 | infop->date = 0; | |
873 | infop->direction = DIRECT_PREV; | |
874 | finddate(infop); | |
875 | } | |
876 | } | |
877 | ||
878 | void firstdate(struct msginfo *infop,int flagfail) | |
879 | { | |
880 | infop->date = 0; | |
881 | infop->direction = DIRECT_NEXT; | |
882 | finddate(infop); | |
883 | } | |
884 | ||
885 | void getdate(struct msginfo *infop,int flagfail) | |
886 | /* infop->date has to be 0 or valid on entry. Month outside of [1-12] on */ | |
887 | /* entry causes GIGO */ | |
888 | { | |
889 | if (!flagfail) { /* guess */ | |
890 | if (infop->direction == DIRECT_NEXT) { | |
891 | infop->date++; | |
892 | if (infop->date % 100 > 12) infop->date += (100 - 12); | |
893 | } else if (infop->direction == DIRECT_PREV) { | |
894 | infop->date--; | |
895 | if (!infop->date % 100) infop->date -= (100 - 12); | |
896 | } | |
897 | } else | |
898 | finddate(infop); | |
899 | return; | |
900 | } | |
901 | ||
902 | indexlinks(struct msginfo *infop) | |
903 | { | |
904 | unsigned long tmpmsg; | |
905 | ||
906 | tmpmsg = infop->target; | |
907 | infop->target = 1; | |
908 | oputs("<DIV class=idxlinks><STRONG>"); | |
909 | linktoindex(infop,ITEM_INDEX); | |
910 | oputs(">[<<-]</A>\n"); | |
911 | if (tmpmsg >= 100) infop->target = tmpmsg - 100; | |
912 | linktoindex(infop,ITEM_INDEX); | |
913 | oputs(">[<-]</A>\n"); | |
914 | infop->target = tmpmsg + 100; | |
915 | linktoindex(infop,ITEM_INDEX); | |
916 | oputs(">[->]</A>\n"); | |
917 | infop->target = MAXULONG; | |
918 | linktoindex(infop,ITEM_INDEX); | |
919 | oputs(">[->>]</A> |\n"); | |
920 | infop->target = tmpmsg; | |
921 | linktoindex(infop,ITEM_DATE); | |
922 | oputs(">[Threads by date]</A>\n"); | |
923 | subfaqlinks(); | |
924 | homelink(); | |
925 | oputs("</STRONG></DIV>\n"); | |
926 | } | |
927 | ||
928 | int show_index(struct msginfo *infop) | |
929 | { | |
930 | unsigned long thismsg; | |
931 | unsigned int pos,l; | |
932 | char ch; | |
933 | ||
934 | (void) makefn(&fn,ITEM_INDEX,msginfo.target,""); | |
935 | if ((fd = open_read(fn.s)) == -1) | |
936 | if (errno == error_noent) | |
937 | return 0; | |
938 | else | |
939 | strerr_die4sys(111,FATAL,ERR_OPEN,fn.s,": "); | |
940 | substdio_fdbuf(&ssin,read,fd,inbuf,sizeof(inbuf)); | |
941 | if (!stralloc_copyb(&line,strnum, | |
942 | fmt_ulong(strnum,(unsigned long) (infop->target / 100)))) | |
943 | die_nomem(); | |
944 | if (!stralloc_cats(&line,"xx")) die_nomem(); | |
945 | html_header("Messages ",line.s,line.len,"idxbody",SPC_BANNER | SPC_BASE); | |
946 | indexlinks(infop); | |
947 | oputs("<HR><H1 id=\"idxhdr\">"); | |
948 | oputs("Messages "); | |
949 | oput(line.s,line.len); | |
950 | oputs("</H1>\n"); | |
951 | oputs("<HR><DIV class=idx>\n"); | |
952 | for (;;) { | |
953 | if (getln(&ssin,&line,&match,'\n') == -1) | |
954 | strerr_die4sys(111,FATAL,ERR_READ,fn.s,": "); | |
955 | if (!match) | |
956 | break; | |
957 | pos = scan_ulong(line.s,&thismsg); | |
958 | l = pos; | |
959 | ch = line.s[pos++]; | |
960 | pos++; | |
961 | if (line.len < pos + 1 + HASHLEN) | |
962 | strerr_die2x(100,FATAL,"index line with truncated subject entry"); | |
963 | if (!stralloc_copyb(&subject,line.s+pos,HASHLEN)) die_nomem(); | |
964 | if (!stralloc_0(&subject)) die_nomem(); | |
965 | infop->axis = ITEM_SUBJECT; | |
966 | infop->subject = subject.s; | |
967 | oput(strnum,fmt_uint0(strnum,(unsigned int) thismsg % 100,2)); | |
968 | oputs(": "); | |
969 | link(infop,ITEM_MESSAGE,ITEM_SUBJECT,thismsg,line.s+pos,line.len - pos - 1); | |
970 | oputs("\n"); | |
971 | if (ch == ':') { | |
972 | if (getln(&ssin,&line,&match,'\n') == -1) | |
973 | strerr_die4sys(111,FATAL,ERR_READ,fn.s,": "); | |
974 | if (!match) | |
975 | break; | |
976 | pos = byte_chr(line.s,line.len,';'); | |
977 | if (pos != line.len) { | |
978 | infop->date = date2yyyymm(line.s); | |
979 | oputs("("); | |
980 | link(infop,ITEM_AUTHOR,ITEM_AUTHOR,thismsg,line.s+pos+1, | |
981 | line.len - pos - 2); | |
982 | oputs(")<BR>\n"); | |
983 | } | |
984 | } | |
985 | } | |
986 | close(fd); | |
987 | oputs("\n</DIV><HR>\n"); | |
988 | indexlinks(infop); | |
989 | html_footer(SPC_BANNER); | |
990 | return 1; | |
991 | } | |
992 | ||
993 | void objectlinks(struct msginfo *infop, char item) | |
994 | { | |
995 | oputs("<DIV class=objlinks><STRONG>\n"); | |
996 | if (item == ITEM_DATE) { | |
997 | datelink(infop,0,DIRECT_FIRST); | |
998 | datelink(infop,infop->date,DIRECT_PREV); | |
999 | datelink(infop,infop->date,DIRECT_NEXT); | |
1000 | datelink(infop,0,DIRECT_LAST); | |
1001 | oputs("\n"); | |
1002 | } else { | |
1003 | if (!infop->target) infop->axis = ITEM_DATE; | |
1004 | linktoindex(infop,ITEM_DATE); | |
1005 | oputs(">[Threads by date]</A>\n"); | |
1006 | } | |
1007 | if (item != ITEM_INDEX) { | |
1008 | linktoindex(infop,ITEM_INDEX); | |
1009 | oputs(">[Messages by date]</A>\n"); | |
1010 | } | |
1011 | homelink(); | |
1012 | subfaqlinks(); | |
1013 | oputs("</STRONG></DIV>\n"); | |
1014 | } | |
1015 | ||
1016 | int show_object(struct msginfo *infop,char item) | |
1017 | /* shows thread, threads, author */ | |
1018 | /* infop has the info needed to access the author/subject/thread file */ | |
1019 | { | |
1020 | unsigned long lastdate,thisdate,thismsg; | |
1021 | char linkitem; | |
1022 | char targetitem; | |
1023 | unsigned int pos; | |
1024 | ||
1025 | lastdate = 0L; | |
1026 | targetitem = ITEM_MESSAGE; /* default message is target */ | |
1027 | switch (item) { | |
1028 | case ITEM_SUBJECT: | |
1029 | if (!makefn(&fn,ITEM_SUBJECT,0L,infop->subject)) return 0; | |
1030 | break; | |
1031 | case ITEM_AUTHOR: | |
1032 | if (!makefn(&fn,ITEM_AUTHOR,0L,infop->author)) return 0; | |
1033 | break; | |
1034 | case ITEM_DATE: | |
1035 | if (!makefn(&fn,ITEM_DATE,infop->date,"")) return 0; | |
1036 | break; | |
1037 | default: | |
1038 | die_prog("Bad object type in show_object"); | |
1039 | } | |
1040 | if ((fd = open_read(fn.s)) == -1) | |
1041 | if (errno == error_noent) | |
1042 | return 0; | |
1043 | else | |
1044 | strerr_die4sys(111,FATAL,ERR_OPEN,fn.s,": "); | |
1045 | substdio_fdbuf(&ssin,read,fd,inbuf,sizeof(inbuf)); | |
1046 | if (item != ITEM_DATE) { | |
1047 | if (getln(&ssin,&line,&match,'\n') == -1) /* read subject */ | |
1048 | strerr_die4sys(111,FATAL,ERR_READ,fn.s,": "); | |
1049 | if (!match || line.len < HASHLEN + 2) | |
1050 | strerr_die4x(111,FATAL,ERR_READ,fn.s,": nothing there"); | |
1051 | } | |
1052 | switch (item) { | |
1053 | case ITEM_SUBJECT: | |
1054 | html_header("Thread on: ",line.s + HASHLEN + 1, | |
1055 | line.len - HASHLEN - 2,"subjbody",SPC_BANNER | SPC_BASE); | |
1056 | objectlinks(infop,item); | |
1057 | oputs("<HR><H1>On: "); | |
1058 | oput(line.s+HASHLEN+1,line.len-HASHLEN-2); | |
1059 | oputs("</H1>\n"); | |
1060 | break; | |
1061 | case ITEM_AUTHOR: | |
1062 | html_header("Posts by: ",line.s + HASHLEN + 1, | |
1063 | line.len - HASHLEN - 2,"authbody",SPC_BANNER | SPC_BASE); | |
1064 | objectlinks(infop,item); | |
1065 | oputs("<HR><H1>By: "); | |
1066 | oput(line.s+HASHLEN+1,line.len-HASHLEN-2); | |
1067 | oputs("</H1>\n"); | |
1068 | break; | |
1069 | case ITEM_DATE: | |
1070 | /* targetitem = ITEM_SUBJECT;*/ /* thread index is target */ | |
1071 | thisdate = infop->date; | |
1072 | if (dateline(&dtline,infop->date) < 0) die_nomem(); | |
1073 | html_header("Threads for ", | |
1074 | dtline.s,dtline.len,"threadsbody",SPC_BANNER | SPC_BASE); | |
1075 | objectlinks(infop,item); | |
1076 | oputs("<HR><H1>Threads for "); | |
1077 | oput(dtline.s,dtline.len); | |
1078 | oputs("</H1>\n"); | |
1079 | break; | |
1080 | default: die_prog("unrecognized object type in show_object"); | |
1081 | } | |
1082 | ||
1083 | oputs("<DIV class=obj>\n"); | |
1084 | for (;;) { | |
1085 | if (getln(&ssin,&line,&match,'\n') == -1) /* read subject */ | |
1086 | strerr_die4sys(111,FATAL,ERR_READ,fn.s,": "); | |
1087 | if (!match) | |
1088 | break; | |
1089 | pos = scan_ulong(line.s,&thismsg); | |
1090 | if (line.s[pos++] != ':') | |
1091 | strerr_die4x(100,FATAL,"entry in ",fn.s," lacks message number"); | |
1092 | if (item != ITEM_DATE) { /* no date for threads by date */ | |
1093 | pos += scan_ulong(line.s+pos,&thisdate); | |
1094 | infop->date = thisdate; | |
1095 | if (line.s[pos++] != ':') | |
1096 | strerr_die4x(100,FATAL,"entry in ",fn.s," lacks date"); | |
1097 | } | |
1098 | if (line.len < pos + HASHLEN + 2) | |
1099 | strerr_die4x(100,FATAL,"entry in ",fn.s," lacks hash"); | |
1100 | if (thisdate != lastdate) { | |
1101 | if (!lastdate) | |
1102 | oputs("<UL>\n"); | |
1103 | else | |
1104 | oputs("<P>"); | |
1105 | oputs("<LI><H2>"); | |
1106 | datelink(infop,thisdate,DIRECT_SAME); | |
1107 | lastdate = thisdate; | |
1108 | oputs("</H2>\n"); | |
1109 | } | |
1110 | if (item == ITEM_SUBJECT) | |
1111 | linkitem = ITEM_AUTHOR; | |
1112 | else | |
1113 | linkitem = ITEM_SUBJECT; | |
1114 | link(infop,targetitem,linkitem,thismsg,line.s+pos,line.len - pos - 1); | |
1115 | oputs("<BR>\n"); | |
1116 | } | |
1117 | close(fd); | |
1118 | oputs("</UL>\n"); | |
1119 | if (!infop->target) | |
1120 | oputs("<a name=b></a>"); | |
1121 | oputs("<HR></DIV>\n"); | |
1122 | objectlinks(infop,item); | |
1123 | html_footer(SPC_BANNER); | |
1124 | return 1; | |
1125 | } | |
1126 | ||
1127 | void clear_mime() | |
1128 | { | |
1129 | mime_current->charset.len = 0; /* exist but need emptying */ | |
1130 | mime_current->boundary.len = 0; | |
1131 | mime_current->ctype.len = 0; | |
1132 | mime_current->mimetype = MIME_NONE; | |
1133 | mime_current->ctenc = CTENC_NONE; | |
1134 | mime_current->cs = CS_NONE; | |
1135 | } | |
1136 | ||
1137 | void new_mime() | |
1138 | { | |
1139 | mime_tmp = mime_current; | |
1140 | if (mime_current) | |
1141 | mime_current = mime_current->next; | |
1142 | if (!mime_current) { | |
1143 | if (!(mime_current = (mime_info *) alloc(sizeof (mime_info)))) | |
1144 | die_nomem(); | |
1145 | mime_current->charset = sainit; /* init */ | |
1146 | mime_current->boundary = sainit; | |
1147 | mime_current->ctype = sainit; | |
1148 | mime_current->next = (mime_info *) 0; | |
1149 | mime_current->previous = mime_tmp; | |
1150 | } | |
1151 | clear_mime(); | |
1152 | if (mime_tmp) | |
1153 | mime_current->level = mime_tmp->level + 1; | |
1154 | else | |
1155 | mime_current->level = 1; | |
1156 | } | |
1157 | ||
1158 | void mime_getarg(stralloc *sa,char **s, unsigned int *l) | |
1159 | /* copies next token or "token" into sa and sets s & l appropriately */ | |
1160 | /* for continuing the search */ | |
1161 | { | |
1162 | char *cp, *cpafter, *cpnext; | |
1163 | ||
1164 | if (!*l || !**s) return; | |
1165 | if (**s == '"') { | |
1166 | (*s)++; (*l)--; | |
1167 | cp = *s; cpnext = cp + *l; cpafter = cpnext; | |
1168 | while (cp < cpafter) { | |
1169 | if (*cp == '"') { | |
1170 | break; | |
1171 | } | |
1172 | cp++; | |
1173 | } | |
1174 | cpnext = cp; | |
1175 | } else { | |
1176 | cp = *s; cpnext = cp + *l; cpafter = cpnext; | |
1177 | while (cp < cpafter) { | |
1178 | if (*cp == ' ' || *cp == '\t' || *cp == '\n' || *cp == ';') { | |
1179 | break; | |
1180 | } | |
1181 | cp++; | |
1182 | } | |
1183 | cpnext = cp; | |
1184 | } | |
1185 | if (!stralloc_copyb(sa,*s,cp - *s)) die_nomem(); | |
1186 | *l = cpafter - cpnext; /* always >= 0 */ | |
1187 | *s = cpnext; | |
1188 | return; | |
1189 | } | |
1190 | ||
1191 | void decode_mime_type(char *s,unsigned int l,unsigned int flagmime) | |
1192 | { | |
1193 | char *st; | |
1194 | unsigned int r,lt; | |
1195 | if (!flagmime || !l) { /* treat non-MIME as plain text */ | |
1196 | mime_current->mimetype = MIME_TEXT_PLAIN; | |
1197 | if (!stralloc_copys(&curcharset,charset)) die_nomem(); | |
1198 | /* should be us-ascii, but this is very likely better */ | |
1199 | return; | |
1200 | } | |
1201 | r = MIME_APPLICATION_OCTETSTREAM; | |
1202 | while (l && (*s == ' ' || *s == '\t')) { s++; l--; } /* skip LWSP */ | |
1203 | mime_getarg(&(mime_current->ctype),&s,&l); | |
1204 | st = mime_current->ctype.s; | |
1205 | lt = mime_current->ctype.len; | |
1206 | if (case_startb(st,lt,"text")) { /* text types */ | |
1207 | r = MIME_TEXT; st+= 4; lt-= 4; | |
1208 | if (case_startb(st,lt,"/plain")) { | |
1209 | r = MIME_TEXT_PLAIN; st+= 6; lt-= 6; | |
1210 | } else if (case_startb(st,lt,"/html")) { | |
1211 | r = MIME_TEXT_HTML; st+= 5; lt-= 5; | |
1212 | } else if (case_startb(st,lt,"/enriched")) { | |
1213 | r = MIME_TEXT_ENRICHED; st+= 9; lt-= 9; | |
1214 | } else if (case_startb(st,lt,"/x-vcard")) { | |
1215 | r = MIME_TEXT_ENRICHED; st+= 8; lt-= 8; | |
1216 | } | |
1217 | } else if (case_startb(st,lt,"multipart")) { /* multipart types */ | |
1218 | r = MIME_MULTI; st += 9; lt-= 9; | |
1219 | if (case_startb(st,lt,"/alternative")) { | |
1220 | r = MIME_MULTI_ALTERNATIVE; st+= 12; lt-= 12; | |
1221 | } else if (case_startb(st,lt,"/mixed")) { | |
1222 | r = MIME_MULTI_MIXED; st+= 6; lt-= 6; | |
1223 | } else if (case_startb(st,lt,"/digest")) { | |
1224 | r = MIME_MULTI_DIGEST; st+= 7; lt-= 7; | |
1225 | } else if (case_startb(st,lt,"/signed")) { | |
1226 | r = MIME_MULTI_SIGNED; st+= 7; lt-= 7; | |
1227 | } | |
1228 | } else if (case_startb(st,lt,"message")) { /* message types */ | |
1229 | r = MIME_MESSAGE; st += 7; lt -= 7; | |
1230 | if (case_startb(st,lt,"/rfc822")) { | |
1231 | r = MIME_MESSAGE_RFC822; st+= 7; lt-= 7; | |
1232 | } | |
1233 | } | |
1234 | mime_current->mimetype = r; | |
1235 | while (l) { | |
1236 | while (l && (*s == ' ' || *s == '\t' || *s == ';' || *s == '\n')) { | |
1237 | s++; l--; } /* skip ;LWSP */ | |
1238 | if (case_startb(s,l,"boundary=")) { | |
1239 | s += 9; l-= 9; | |
1240 | mime_getarg(&(mime_current->boundary),&s,&l); | |
1241 | } else if (case_startb(s,l,"charset=")) { | |
1242 | s += 8; l-= 8; | |
1243 | mime_getarg(&(mime_current->charset),&s,&l); | |
1244 | cs = decode_charset(mime_current->charset.s, | |
1245 | mime_current->charset.len); | |
1246 | if (cs == CS_BAD) cs = csbase; /* keep base cs */ | |
1247 | else | |
1248 | if (!stralloc_copy(&curcharset,&mime_current->charset)) die_nomem(); | |
1249 | } else { /* skip non LWSP */ | |
1250 | for (;;) { | |
1251 | if (!l) break; | |
1252 | if (*s == '"') { | |
1253 | s++, l--; | |
1254 | while (l && *s != '"') { s++, l--; } | |
1255 | if (l) { s++, l--; } | |
1256 | break; | |
1257 | } else { | |
1258 | if (!l || *s == ' ' || *s == '\t' || *s == '\n') break; | |
1259 | s++; l--; | |
1260 | } | |
1261 | } | |
1262 | } | |
1263 | } | |
1264 | return; | |
1265 | } | |
1266 | ||
1267 | void decode_transfer_encoding(register char *s,register unsigned int l) | |
1268 | { | |
1269 | unsigned int r; | |
1270 | mime_current->ctenc = CTENC_NONE; | |
1271 | if (!l || (mime_current->mimetype & MIME_MULTI)) return; | |
1272 | /* base64/QP ignored for multipart */ | |
1273 | r = CTENC_NONE; | |
1274 | while (l && (*s == ' ' || *s == '\t')) { s++; l--; } /* skip LWSP */ | |
1275 | if (case_startb(s,l,"quoted-printable")) { | |
1276 | r = CTENC_QP; | |
1277 | } else if (case_startb(s,l,"base64")) { | |
1278 | r = CTENC_BASE64; | |
1279 | } | |
1280 | mime_current->ctenc = r; | |
1281 | return; | |
1282 | } | |
1283 | ||
1284 | int check_boundary() | |
1285 | /* return 0 if no boundary, 1 if start, 2 if end */ | |
1286 | { | |
1287 | mime_info *tmp; | |
1288 | ||
1289 | if (*line.s != '-' || line.s[1] != '-') return 0; | |
1290 | tmp = mime_current; | |
1291 | while (tmp) { | |
1292 | if (tmp->boundary.len) { | |
1293 | if (line.len > tmp->boundary.len + 2 && | |
1294 | !case_diffb(line.s+2,tmp->boundary.len,tmp->boundary.s)) { | |
1295 | if (line.s[tmp->boundary.len + 2] == '-' && | |
1296 | line.s[tmp->boundary.len + 3] == '-') { /* end */ | |
1297 | mime_current = tmp; | |
1298 | clear_mime(); | |
1299 | return 2; | |
1300 | ||
1301 | } else { /* start */ | |
1302 | mime_current = tmp; | |
1303 | new_mime(); | |
1304 | return 1; | |
1305 | } | |
1306 | } | |
1307 | } | |
1308 | tmp = tmp->previous; | |
1309 | } | |
1310 | if (!stralloc_copys(&curcharset,charset)) die_nomem(); | |
1311 | /* suprtfluous since header done by now */ | |
1312 | cs = csbase; | |
1313 | return 0; | |
1314 | } | |
1315 | ||
1316 | void start_message_page(struct msginfo *infop) | |
1317 | /* header etc for message. Delayed to collect subject so that we can put */ | |
1318 | /* that in TITLE. This in turn needed for good looking robot index. */ | |
1319 | /* Yep, not pretty, but it works and it's abhorrent to seek()/rewind */ | |
1320 | /* and another hack: it's hard to mix charsets within a doc. So, we disp */ | |
1321 | /* messages entirely in the charset of the message. This is ok, since */ | |
1322 | /* headers will be us-ascii or have encoded segments usually matching */ | |
1323 | /* the charset in the message. Of course, we should be able to used e.g. */ | |
1324 | /* <DIV charset=iso-2022-jp> with internal resources as well as internal */ | |
1325 | /* ones. One might make other-charset messages external resources as well*/ | |
1326 | /* Now, the problem is that we need to "preview" MIME info _before_ */ | |
1327 | /* seeing the start boundary. */ | |
1328 | { | |
1329 | if (!stralloc_copyb(&decline,strnum,fmt_ulong(strnum,infop->target))) | |
1330 | die_nomem(); | |
1331 | if (!stralloc_cats(&decline,":")) die_nomem(); | |
1332 | if (!stralloc_0(&decline)) die_nomem(); | |
1333 | decodeHDR(hdr[HDR_SUBJECT - 1].s,hdr[HDR_SUBJECT - 1].len,&line,"",FATAL); | |
1334 | if (!mime_current) | |
1335 | new_mime(); /* allocate */ | |
1336 | else | |
1337 | clear_mime(); | |
1338 | decode_mime_type(hdr[HDR_CT - 1].s,hdr[HDR_CT - 1].len, | |
1339 | hdr[HDR_VERSION - 1].len); | |
1340 | html_header(decline.s,line.s,line.len - 1, | |
1341 | "msgbody",SPC_BASE); | |
1342 | msglinks(infop); | |
1343 | oputs("<DIV class=message>\n"); | |
1344 | } | |
1345 | ||
1346 | void show_part(struct msginfo *infop,int flagshowheaders, | |
1347 | int flagskip,int flagstartseen) | |
1348 | /* if flagshowheaders we display headers, otherwise not */ | |
1349 | /* if flagstartseen we've already see the start boundary for this part, */ | |
1350 | /* if not we'll ignore what's there up to it */ | |
1351 | /* if flagskip we skip this part */ | |
1352 | { | |
1353 | char *cp; | |
1354 | int flaginheader; | |
1355 | int whatheader; | |
1356 | int flaggoodfield; | |
1357 | int flaghtml; | |
1358 | int btype,i; | |
1359 | unsigned int colpos,l,pos; | |
1360 | char linetype; | |
1361 | ||
1362 | flaginheader = 1; | |
1363 | for (i = 0; i < NO_HDRS; i++) hdr[i].len = 0; | |
1364 | flaggoodfield = 1; | |
1365 | match = 1; | |
1366 | recursion_level++; /* one up */ | |
1367 | for (;;) { | |
1368 | if (!match) return; | |
1369 | if (getln(&ssin,&line,&match,'\n') == -1) | |
1370 | strerr_die4sys(111,FATAL,ERR_READ,fn.s,": "); | |
1371 | if (!match) return; | |
1372 | if ((btype = check_boundary())) { | |
1373 | if (flagpre) { | |
1374 | oputs("</PRE>"); | |
1375 | toggle_flagpre(0); | |
1376 | } | |
1377 | if (mime_current->level < recursion_level) { | |
1378 | return; | |
1379 | } | |
1380 | if (btype == 1) { | |
1381 | flagstartseen = 1; | |
1382 | flaggoodfield = 1; | |
1383 | flaginheader = 1; | |
1384 | } else | |
1385 | flagstartseen = 0; | |
1386 | continue; | |
1387 | } | |
1388 | if (!flagstartseen) continue; /* skip to start */ | |
1389 | if (flaginheader) { | |
1390 | if (line.len == 1) { | |
1391 | if (flagshowheaders) { /* rfc822hdr only */ | |
1392 | if (flagtoplevel) | |
1393 | start_message_page(infop); /* so we can put subj in TITLE */ | |
1394 | oputs("<DIV class=rfc822hdr><HR>\n"); | |
1395 | for (i = 0; i < NO_HDRS; i++) { | |
1396 | if (!hdr[i].len || !headers_shown[i]) continue; | |
1397 | if (i == HDR_SUBJECT - 1 && flagtoplevel) | |
1398 | oputs("<SPAN class=subject>"); | |
1399 | oputs("<EM>"); | |
1400 | oputs(constmap_get(&headermap,i + 1)); | |
1401 | oputs(":</EM>"); | |
1402 | decodeHDR(hdr[i].s,hdr[i].len,&line,"",FATAL); | |
1403 | if (i == HDR_SUBJECT - 1 && flagtoplevel) { | |
1404 | oputs("<A class=relk href=\"mailto:"); | |
1405 | oputs(local); | |
1406 | oput("@",1); | |
1407 | oputs(host); | |
1408 | oputs("?subject="); | |
1409 | urlencode_put(line.s + 1,line.len - 2); | |
1410 | oputs("\">"); | |
1411 | } | |
1412 | if (flagobscure && i == HDR_FROM - 1) { | |
1413 | oputs(" "); | |
1414 | decodeHDR(cp,author_name(&cp,line.s,line.len),&decline,"",FATAL); | |
1415 | htmlencode_put(decline.s,decline.len); | |
1416 | } else { | |
1417 | decodeHDR(hdr[i].s,hdr[i].len,&decline,"",FATAL); | |
1418 | htmlencode_put(decline.s,decline.len - 1); | |
1419 | } | |
1420 | if (i == HDR_SUBJECT - 1 && flagtoplevel) | |
1421 | oputs("</A></SPAN>"); | |
1422 | oputs("\n<BR>"); | |
1423 | } | |
1424 | oputs("</DIV>\n"); | |
1425 | } | |
1426 | flaginheader = 0; | |
1427 | flagtoplevel = 0; | |
1428 | flaggoodfield = 1; | |
1429 | flaghtml = 0; | |
1430 | if (!flagmime) | |
1431 | flagmime = hdr[HDR_VERSION - 1].len; /* MIME-Version header */ | |
1432 | decode_mime_type(hdr[HDR_CT - 1].s,hdr[HDR_CT - 1].len,flagmime); | |
1433 | decode_transfer_encoding(hdr[HDR_CTENC - 1].s,hdr[HDR_CTENC - 1].len); | |
1434 | content.len = 0; encoding.len = 0; | |
1435 | switch (mime_current->mimetype) { | |
1436 | case MIME_MULTI_SIGNED: | |
1437 | case MIME_MULTI_MIXED: | |
1438 | case MIME_MULTI_ALTERNATIVE: | |
1439 | case MIME_MULTI_DIGEST: | |
1440 | show_part(infop,0,0,0); | |
1441 | recursion_level--; | |
1442 | flagstartseen = 0; | |
1443 | flaginheader = 1; | |
1444 | continue; | |
1445 | case MIME_MESSAGE_RFC822: | |
1446 | oputs("\n<PRE>"); | |
1447 | toggle_flagpre(1); | |
1448 | flagshowheaders = 1; | |
1449 | flaginheader = 1; | |
1450 | flagmime = 0; /* need new MIME-Version header */ | |
1451 | continue; | |
1452 | case MIME_TEXT_HTML: | |
1453 | if (flagshowhtml) { | |
1454 | oputs("<HR>\n"); | |
1455 | flaghtml = 1; | |
1456 | } else { | |
1457 | oputs("<strong>[\""); | |
1458 | oput(mime_current->ctype.s,mime_current->ctype.len); | |
1459 | oputs("\" not shown]</strong>\n"); | |
1460 | flaggoodfield = 0; /* hide */ | |
1461 | } | |
1462 | continue; | |
1463 | case MIME_TEXT_PLAIN: | |
1464 | case MIME_TEXT: /* in honor of Phil using "text" on */ | |
1465 | case MIME_NONE: /* the qmail list and rfc2045:5.2 */ | |
1466 | oputs("<HR>\n<PRE>\n"); | |
1467 | toggle_flagpre(1); | |
1468 | continue; | |
1469 | case MIME_TEXT_VCARD: | |
1470 | default: /* application/octetstream...*/ | |
1471 | oputs("<HR><strong>[\""); | |
1472 | oput(mime_current->ctype.s,mime_current->ctype.len); | |
1473 | oputs("\" not shown]</strong>\n"); | |
1474 | flaggoodfield = 0; /* hide */ | |
1475 | continue; | |
1476 | } | |
1477 | } else if (line.s[0] != ' ' && line.s[0] != '\t') { | |
1478 | linetype = ' '; | |
1479 | flaggoodfield = 0; | |
1480 | colpos = byte_chr(line.s,line.len,':'); | |
1481 | if ((whatheader = constmap_index(&headermap,line.s,colpos))) { | |
1482 | flaggoodfield = 1; | |
1483 | if (!stralloc_copyb(&hdr[whatheader - 1],line.s + colpos + 1, | |
1484 | line.len - colpos - 1)) die_nomem(); | |
1485 | } | |
1486 | } else { | |
1487 | if (whatheader) | |
1488 | if (!stralloc_catb(&hdr[whatheader - 1],line.s,line.len)) | |
1489 | die_nomem(); | |
1490 | } | |
1491 | } else { | |
1492 | if (flaggoodfield) { | |
1493 | if (mime_current->ctenc) { | |
1494 | if (!stralloc_copy(&decline,&line)) die_nomem(); | |
1495 | line.len = 0; | |
1496 | if (mime_current->ctenc == CTENC_QP) | |
1497 | decodeQ(decline.s,decline.len,&line); | |
1498 | else | |
1499 | decodeB(decline.s,decline.len,&line); | |
1500 | } | |
1501 | if (flaghtml) | |
1502 | oput(line.s,line.len); | |
1503 | else { | |
1504 | htmlencode_put(line.s,line.len); /* body */ | |
1505 | } | |
1506 | } | |
1507 | } | |
1508 | } | |
1509 | } | |
1510 | ||
1511 | int show_message(struct msginfo *infop) | |
1512 | { | |
1513 | char *psz; | |
1514 | ||
1515 | if(!stralloc_copys(&headers,(char *) headers_used)) die_nomem(); | |
1516 | if (!stralloc_0(&headers)) die_nomem(); | |
1517 | psz = headers.s; | |
1518 | while (*psz) { | |
1519 | if (*psz == '\\') *psz = '\0'; | |
1520 | ++psz; | |
1521 | } | |
1522 | if (!constmap_init(&headermap,headers.s,headers.len,0)) | |
1523 | die_nomem(); | |
1524 | ||
1525 | (void) makefn(&fn,ITEM_MESSAGE,msginfo.target,""); | |
1526 | if ((fd = open_read(fn.s)) == -1) | |
1527 | if (errno == error_noent) | |
1528 | return 0; | |
1529 | else | |
1530 | strerr_die4sys(111,FATAL,ERR_OPEN,fn.s,": "); | |
1531 | substdio_fdbuf(&ssin,read,fd,inbuf,sizeof(inbuf)); | |
1532 | toggle_flagpre(0); | |
1533 | recursion_level = 0; /* recursion level for show_part */ | |
1534 | flagmime = 0; /* no active mime */ | |
1535 | flagtoplevel = 1; /* top message/rfc822 get special rx */ | |
1536 | new_mime(); /* initiate a MIME info storage slot */ | |
1537 | ||
1538 | show_part(infop,1,0,1); /* do real work, including html header etc */ | |
1539 | if (flagpre) | |
1540 | oputs("</PRE>\n"); | |
1541 | close(fd); | |
1542 | oputs("<HR></DIV>\n"); | |
1543 | msglinks(infop); | |
1544 | html_footer(0); | |
1545 | return 1; | |
1546 | } | |
1547 | ||
1548 | char decode_item(char ch) | |
1549 | { | |
1550 | switch (ch) { | |
1551 | case 'm': return ITEM_MESSAGE; | |
1552 | case 'a': return ITEM_AUTHOR ; | |
1553 | case 's': return ITEM_SUBJECT; | |
1554 | case 'd': return ITEM_DATE ; | |
1555 | case 'i': return ITEM_INDEX ; | |
1556 | default: cgierr("Navigation command contains ", | |
1557 | "illegal item code",""); | |
1558 | } | |
1559 | return 0; /* never reached */ | |
1560 | } | |
1561 | ||
1562 | char decode_direction(char ch) | |
1563 | { | |
1564 | switch (ch) { | |
1565 | case 's': return DIRECT_SAME; | |
1566 | case 'n': return DIRECT_NEXT; | |
1567 | case 'p': return DIRECT_PREV; | |
1568 | default: cgierr("Navigation command contains ", | |
1569 | "illegal direction code",""); | |
1570 | } | |
1571 | return 0; /* never reached */ | |
1572 | } | |
1573 | ||
1574 | int decode_cmd(char *s,struct msginfo *infop) | |
1575 | /* decodes s into infop. Assures that no security problems slip through by */ | |
1576 | /* checking everything */ | |
1577 | /* commands xyd:123[:abc]. x what we want, y is the axis, d the direction. */ | |
1578 | /* 123 is the current message number. abc is a date/subject/author hash, */ | |
1579 | /* depending on axis, or empty if not available. */ | |
1580 | /* returns: 0 no command+msgnum. */ | |
1581 | /* 1 empty or at least cmd + msgnum. */ | |
1582 | /* Guarantee: Only legal values accepted */ | |
1583 | { | |
1584 | register char ch; | |
1585 | ||
1586 | infop->source = 0L; | |
1587 | infop->date = 0L; | |
1588 | infop->author = (char *)0; | |
1589 | infop->subject = (char *)0; | |
1590 | infop->cgiarg = (char *)0; | |
1591 | ||
1592 | if (!s || !*s) { /* main index */ | |
1593 | infop->item = ITEM_DATE; | |
1594 | infop->axis = ITEM_DATE; | |
1595 | infop->direction = DIRECT_SAME; | |
1596 | latestdate(&msginfo,0); | |
1597 | infop->target = MAXULONG; | |
1598 | return 1; | |
1599 | } | |
1600 | ch = *(s++); | |
1601 | if (ch >= '0' && ch <= '9') { /* numeric - simplified cmd: msgnum ... */ | |
1602 | s--; | |
1603 | infop->item = ITEM_MESSAGE; | |
1604 | infop->axis = ITEM_MESSAGE; | |
1605 | infop->direction = DIRECT_SAME; | |
1606 | } else { /* what:axis:direction:msgnum ... */ | |
1607 | infop->item = decode_item(ch); | |
1608 | ch = *(s++); | |
1609 | infop->axis = decode_item(ch); | |
1610 | ch = *(s++); | |
1611 | infop->direction = decode_direction(ch); | |
1612 | if (*(s++) != ':') return 0; | |
1613 | } | |
1614 | s+= scan_ulong(s,&(infop->source)); | |
1615 | if (*(s++) != ':') return 0; | |
1616 | if (*s >= '0' && *s <= '9') { /* numeric nav hint [date] */ | |
1617 | s+= scan_ulong(s,&(infop->date)); | |
1618 | if (!*s++) return 1; /* skip any char - should be ':' unless NUL */ | |
1619 | } | |
1620 | if (checkhash(s)) { /* Ignore if illegal rather than complaining*/ | |
1621 | if (!stralloc_copyb(&charg,s,HASHLEN)) die_nomem(); | |
1622 | if (!stralloc_0(&charg)) die_nomem(); | |
1623 | infop->cgiarg = charg.s; | |
1624 | } | |
1625 | return 1; | |
1626 | } | |
1627 | ||
1628 | int msg2hash(struct msginfo *infop) | |
1629 | { | |
1630 | unsigned int pos; | |
1631 | unsigned long tmpmsg; | |
1632 | ||
1633 | if (!infop->source) die_prog("source is 0 in msg2hash"); | |
1634 | (void) makefn(&fn,ITEM_INDEX,infop->source,""); | |
1635 | if ((fd = open_read(fn.s)) == -1) { | |
1636 | if (errno == error_noent) | |
1637 | return 0; | |
1638 | else | |
1639 | strerr_die4sys(111,FATAL,ERR_OPEN,fn.s,": "); | |
1640 | } | |
1641 | substdio_fdbuf(&ssin,read,fd,inbuf,sizeof(inbuf)); | |
1642 | for (;;) { | |
1643 | if (getln(&ssin,&line,&match,'\n') == -1) | |
1644 | strerr_die3sys(111,FATAL,ERR_READ,"index: "); | |
1645 | if (!match) | |
1646 | return 0; /* didn't find message */ | |
1647 | if (*line.s == '\t') continue; /* author line */ | |
1648 | pos = scan_ulong(line.s,&tmpmsg); | |
1649 | if (tmpmsg == infop->source) { | |
1650 | if (line.s[pos++] != ':' || line.s[pos++] != ' ') | |
1651 | strerr_die3x(100,ERR_SYNTAX,fn.s,": missing subject separator"); | |
1652 | if (line.len < HASHLEN + pos) | |
1653 | strerr_die3x(100,ERR_SYNTAX,fn.s,": missing subject hash"); | |
1654 | if (!stralloc_copyb(&subject,line.s+pos,HASHLEN)) die_nomem(); | |
1655 | if (!stralloc_0(&subject)) die_nomem(); | |
1656 | infop->subject = subject.s; | |
1657 | if (getln(&ssin,&line,&match,'\n') == -1) | |
1658 | strerr_die3sys(111,FATAL,ERR_READ,"index: "); | |
1659 | if (!match) | |
1660 | strerr_die3x(100,ERR_SYNTAX,fn.s, | |
1661 | ": author info missing. Truncated?"); | |
1662 | pos = byte_chr(line.s,line.len,';'); | |
1663 | if (pos == line.len) | |
1664 | strerr_die3x(100,ERR_SYNTAX,fn.s,"missing ';' after date"); | |
1665 | if (pos > 1) | |
1666 | infop->date = date2yyyymm(line.s+1); /* ';' marks end ok */ | |
1667 | pos++; | |
1668 | if (line.len < HASHLEN + pos) | |
1669 | strerr_die3x(100,ERR_SYNTAX,fn.s,": missing author hash"); | |
1670 | if (!stralloc_copyb(&author,line.s+pos,HASHLEN)) die_nomem(); | |
1671 | if (!stralloc_0(&author)) die_nomem(); | |
1672 | infop->author = author.s; | |
1673 | close(fd); | |
1674 | return 1; /* success */ | |
1675 | } | |
1676 | } | |
1677 | close(fd); | |
1678 | return 0; /* failed to match */ | |
1679 | } | |
1680 | ||
1681 | void setmsg(struct msginfo *infop) | |
1682 | /* Reads the file corresponding to infop->axis and assumes fn.s is set */ | |
1683 | /* correctly for this. Sets up a msgnav structure and links it in */ | |
1684 | /* correction for axis=author/subject. For axis=date it supports also */ | |
1685 | /* direction=DIRECT_FIRST which will return the first message of the */ | |
1686 | /* first thread in the date file. DIRECT_LAST is not supported. */ | |
1687 | /* DIRECT_FIRST is supported ONLY for date. */ | |
1688 | { | |
1689 | if (infop->direction == DIRECT_SAME) { | |
1690 | infop->target = infop->source; | |
1691 | return; | |
1692 | } | |
1693 | if ((fd = open_read(fn.s)) == -1) { | |
1694 | if (errno == error_noent) | |
1695 | strerr_die4x(100,FATAL,ERR_OPEN,fn.s, | |
1696 | " in listmsgs. Rerun ezmlm-archive!"); | |
1697 | else | |
1698 | strerr_die4sys(111,FATAL,ERR_OPEN,fn.s,": "); | |
1699 | } | |
1700 | substdio_fdbuf(&ssin,read,fd,inbuf,sizeof(inbuf)); | |
1701 | if (infop->source != ITEM_DATE) { | |
1702 | if (getln(&ssin,&line,&match,'\n') == -1) /* first line */ | |
1703 | strerr_die4sys(111,FATAL,ERR_READ,fn.s,": "); | |
1704 | if (!match) | |
1705 | strerr_die3x(100,ERR_SYNTAX,fn.s,": first line missing"); | |
1706 | } | |
1707 | msgnav[3] = 0L; /* next */ | |
1708 | msgnav[4] = 0L; /* after */ | |
1709 | infop->target = 0L; | |
1710 | for (;;) { | |
1711 | if (getln(&ssin,&line,&match,'\n') == -1) | |
1712 | strerr_die4sys(111,FATAL,ERR_READ,fn.s,": "); | |
1713 | if (!match) break; | |
1714 | msgnav[0] = msgnav[1]; | |
1715 | msgnav[1] = msgnav[2]; | |
1716 | (void) scan_ulong(line.s,&(msgnav[2])); | |
1717 | if (infop->direction == DIRECT_FIRST) break; | |
1718 | if (msgnav[2] == infop->source) { | |
1719 | if (getln(&ssin,&line,&match,'\n') == -1) | |
1720 | strerr_die4sys(111,FATAL,ERR_READ,fn.s,": "); | |
1721 | if (!match) break; | |
1722 | (void) scan_ulong(line.s,&(msgnav[3])); | |
1723 | if (getln(&ssin,&line,&match,'\n') == -1) | |
1724 | strerr_die4sys(111,FATAL,ERR_READ,fn.s,": "); | |
1725 | if (!match) break; | |
1726 | (void) scan_ulong(line.s,&(msgnav[4])); | |
1727 | break; | |
1728 | } | |
1729 | } | |
1730 | close(fd); | |
1731 | switch (infop->axis) { | |
1732 | case ITEM_AUTHOR: | |
1733 | infop->authnav = msgnav + 2 + infop->direction; | |
1734 | infop->target = *(infop->authnav); | |
1735 | infop->subject = (char *)0; /* what we know is not for this msg */ | |
1736 | infop->date = 0; | |
1737 | break; | |
1738 | case ITEM_SUBJECT: | |
1739 | infop->subjnav = msgnav + 2 + infop->direction; | |
1740 | infop->target = *(infop->subjnav); | |
1741 | infop->author = (char *)0; /* what we know is not for this msg */ | |
1742 | infop->date = 0; | |
1743 | break; | |
1744 | case ITEM_DATE: | |
1745 | infop->target = msgnav[2]; | |
1746 | infop->subject = (char *)0; /* what we know is not for this msg */ | |
1747 | infop->author = (char *)0; /* what we know is not for this msg */ | |
1748 | default: | |
1749 | die_prog("Bad item in setmsg"); | |
1750 | } | |
1751 | return; | |
1752 | } | |
1753 | ||
1754 | void auth2msg(struct msginfo *infop) | |
1755 | { | |
1756 | if (!infop->author) die_prog("no such author in authmsg"); | |
1757 | if (!makefn(&fn,ITEM_AUTHOR,0L,infop->author)) die_prog("auth2msg"); | |
1758 | setmsg(infop); | |
1759 | } | |
1760 | ||
1761 | void subj2msg(struct msginfo *infop) | |
1762 | { | |
1763 | if (!infop->subject) die_prog("no such subject in subj2msg"); | |
1764 | if (!makefn(&fn,ITEM_SUBJECT,0L,infop->subject)) die_prog("subj2msg"); | |
1765 | setmsg(infop); | |
1766 | } | |
1767 | ||
1768 | void date2msg(struct msginfo *infop) | |
1769 | { | |
1770 | (void) makefn(&fn,ITEM_DATE,infop->date,""); | |
1771 | setmsg(infop); | |
1772 | } | |
1773 | ||
1774 | void findlastmsg(struct msginfo *infop) | |
1775 | { | |
1776 | if (!getconf_line(&line,"num",dir,0,FATAL)) | |
1777 | cgierr("Sorry, there are no messages in the archive","",""); | |
1778 | if (!stralloc_0(&line)) die_nomem(); | |
1779 | (void) scan_ulong(line.s,&(infop->target)); | |
1780 | } | |
1781 | ||
1782 | int do_cmd(struct msginfo *infop) | |
1783 | /* interprets msginfo to create msginfo. Upon return, msginfo can be trusted */ | |
1784 | /* to have all info needed, and that all info is correct. There may be more */ | |
1785 | /* info than needed. This can be used to build more specific links. NOTE: */ | |
1786 | /* there is no guarantee that a message meeting the criteria actually exists*/ | |
1787 | { | |
1788 | infop->target = infop->source; | |
1789 | ||
1790 | switch (infop->item) { | |
1791 | case ITEM_MESSAGE: /* we want to get a message back */ | |
1792 | { | |
1793 | switch (infop->axis) { | |
1794 | case ITEM_MESSAGE: | |
1795 | if (infop->direction == DIRECT_SAME) | |
1796 | break; | |
1797 | else if (infop->direction == DIRECT_NEXT) | |
1798 | (infop->target)++; | |
1799 | else { /* previous */ | |
1800 | cache = 2; | |
1801 | if (infop->target >= 2) | |
1802 | (infop->target)--; | |
1803 | else | |
1804 | infop->target = 1; | |
1805 | } | |
1806 | break; | |
1807 | case ITEM_AUTHOR: | |
1808 | infop->author = infop->cgiarg; | |
1809 | if (!infop->author) /* we don't know author hash */ | |
1810 | if (!msg2hash(infop)) return 0; | |
1811 | auth2msg(infop); | |
1812 | break; | |
1813 | case ITEM_SUBJECT: | |
1814 | infop->subject = infop->cgiarg; | |
1815 | if (!infop->subject) /* we don't know Subject hash */ | |
1816 | if (!msg2hash(infop)) return 0; | |
1817 | subj2msg(infop); | |
1818 | break; | |
1819 | } | |
1820 | break; | |
1821 | } | |
1822 | case ITEM_AUTHOR: | |
1823 | switch (infop->axis) { | |
1824 | case ITEM_MESSAGE: | |
1825 | if (!infop->author) | |
1826 | if (!msg2hash(infop)) return 0; | |
1827 | break; | |
1828 | case ITEM_AUTHOR: | |
1829 | infop->author = infop->cgiarg; | |
1830 | if (!infop->author) | |
1831 | if (!msg2hash(infop)) return 0; | |
1832 | auth2msg(infop); | |
1833 | break; | |
1834 | case ITEM_SUBJECT: | |
1835 | infop->subject = infop->cgiarg; | |
1836 | if (!infop->subject) /* we don't know Subject hash */ | |
1837 | if (!msg2hash(infop)) return 0; | |
1838 | subj2msg(infop); | |
1839 | break; | |
1840 | } | |
1841 | break; | |
1842 | case ITEM_SUBJECT: | |
1843 | switch (infop->axis) { | |
1844 | case ITEM_MESSAGE: | |
1845 | if (!msg2hash(infop)) return 0; | |
1846 | break; | |
1847 | case ITEM_AUTHOR: | |
1848 | infop->author = infop->cgiarg; | |
1849 | if (!infop->author) | |
1850 | if (!msg2hash(infop)) return 0; | |
1851 | auth2msg(infop); | |
1852 | break; | |
1853 | case ITEM_SUBJECT: | |
1854 | infop->subject = infop->cgiarg; | |
1855 | if (!infop->subject) /* we don't know Subject hash */ | |
1856 | if (!msg2hash(infop)) return 0; | |
1857 | subj2msg(infop); | |
1858 | break; | |
1859 | } | |
1860 | break; | |
1861 | case ITEM_DATE: /* want a date reference */ | |
1862 | switch (infop->axis) { | |
1863 | case ITEM_MESSAGE: | |
1864 | case ITEM_AUTHOR: | |
1865 | case ITEM_SUBJECT: | |
1866 | case ITEM_DATE: | |
1867 | if (!infop->date && infop->source) | |
1868 | if (!msg2hash(infop)) return 0; | |
1869 | getdate(infop,0); | |
1870 | break; | |
1871 | } | |
1872 | break; | |
1873 | case ITEM_INDEX: /* ignore direction etc - only for index */ | |
1874 | if (!infop->target) | |
1875 | infop->target = infop->source; | |
1876 | if (!infop->target) | |
1877 | findlastmsg(infop); | |
1878 | break; | |
1879 | } | |
1880 | return 1; | |
1881 | } | |
1882 | ||
1883 | void list_lists() | |
1884 | { | |
1885 | unsigned long lno; | |
1886 | cache = 2; | |
1887 | flagrobot = 2; | |
1888 | html_header("Robot index of lists",0,0,0,0); | |
1889 | for (;;) { | |
1890 | if (getln(&ssin,&cfline,&match,'\n') == -1) /* read line */ | |
1891 | strerr_die4sys(111,FATAL,ERR_READ,fn.s,": "); | |
1892 | if (!match) | |
1893 | break; | |
1894 | if (cfline.s[0] == '#') continue; /* skip comment */ | |
1895 | cfline.s[cfline.len - 1] = '\0'; /* so all are sz */ | |
1896 | (void) scan_ulong(cfline.s,&lno); /* listno for line */ | |
1897 | if (lno) { /* don't expose default list */ | |
1898 | oputs("<A href=\""); | |
1899 | oput(strnum,fmt_ulong(strnum,lno)); | |
1900 | oputs("/index\">[link]</a>\n"); | |
1901 | } | |
1902 | } | |
1903 | html_footer(0); | |
1904 | } | |
1905 | ||
1906 | void list_list(unsigned long listno) | |
1907 | /* Make one link [for list_set()] per set of 100 archive messages. */ | |
1908 | /* Assumption: Any directory DIR/archive/xxx where 'xxx' is a numeric,*/ | |
1909 | /* is part of the list archive and has in it an index file and one */ | |
1910 | /* or more messages. */ | |
1911 | { | |
1912 | DIR *archivedir; | |
1913 | direntry *d; | |
1914 | unsigned long msgset; | |
1915 | ||
1916 | flagrobot = 2; | |
1917 | strnum[fmt_ulong(strnum,listno)] = '\0'; | |
1918 | archivedir = opendir("archive/"); | |
1919 | if (!archivedir) | |
1920 | if (errno != error_noent) | |
1921 | strerr_die4sys(111,FATAL,ERR_OPEN,dir,"/archive: "); | |
1922 | else | |
1923 | strerr_die4sys(100,FATAL,ERR_OPEN,dir,"/archive: "); | |
1924 | ||
1925 | cache = 1; | |
1926 | html_header("Robot index for message sets in list",0,0,0,0); | |
1927 | ||
1928 | while ((d = readdir(archivedir))) { | |
1929 | if (d->d_name[scan_ulong(d->d_name,&msgset)]) | |
1930 | continue; /* not numeric */ | |
1931 | oputs("<a href=\"../"); /* from /ezcgi/0/index to /ezcgi/listno/index*/ | |
1932 | oputs(strnum); | |
1933 | oputs("/index/"); | |
1934 | oputs(d->d_name); | |
1935 | oputs("\">[link]</a>\n"); | |
1936 | } | |
1937 | closedir(archivedir); | |
1938 | html_footer(0); | |
1939 | } | |
1940 | ||
1941 | void list_set(unsigned long listno,unsigned long msgset) | |
1942 | { | |
1943 | unsigned int msgfirst,msgmax; | |
1944 | unsigned long lastset; | |
1945 | ||
1946 | flagrobot = 2; | |
1947 | findlastmsg(&msginfo); | |
1948 | if (!stralloc_copys(&line,"<a href=\"../")) die_nomem(); | |
1949 | if (!stralloc_catb(&line,strnum,fmt_ulong(strnum,msgset))) die_nomem(); | |
1950 | lastset = msginfo.target / 100; | |
1951 | cache = 2; | |
1952 | msgfirst = 0; | |
1953 | if (!msgset) | |
1954 | msgfirst = 1; | |
1955 | msgmax = 99; | |
1956 | if (msgset > lastset) { /* assure empty list */ | |
1957 | msgmax = 0; | |
1958 | msgfirst = 1; | |
1959 | } else if (msgset == lastset) { | |
1960 | cache = 0; /* still changing */ | |
1961 | msgmax = msginfo.target % 100; | |
1962 | } | |
1963 | html_header("Robot index for messages in set",0,0,0,0); | |
1964 | while (msgfirst <= msgmax) { | |
1965 | oput(line.s,line.len); | |
1966 | oput(strnum,fmt_uint0(strnum,msgfirst,2)); | |
1967 | oputs("\">[link]</a>\n"); | |
1968 | msgfirst++; | |
1969 | } | |
1970 | html_footer(0); | |
1971 | } | |
1972 | ||
1973 | /**************** MAY BE SUID ROOT HERE ****************************/ | |
1974 | void drop_priv(int flagchroot) | |
1975 | { | |
1976 | if (!uid) strerr_die2x(100,FATAL,ERR_SUID); /* not as root */ | |
1977 | if (!euid) { | |
1978 | if (flagchroot) | |
1979 | if (chroot(dir) == -1) /* chroot listdir */ | |
1980 | strerr_die4sys(111,FATAL,"failed to chroot ",dir,": "); | |
1981 | if (setuid(uid) == -1) /* setuid */ | |
1982 | strerr_die2sys(111,FATAL,ERR_SETUID); | |
1983 | } | |
1984 | euid = (unsigned long) geteuid(); | |
1985 | if (!euid) strerr_die2x(100,FATAL,ERR_SUID); /* setuid didn't do it*/ | |
1986 | } | |
1987 | /*******************************************************************/ | |
1988 | ||
1989 | int main(argc,argv) | |
1990 | int argc; | |
1991 | char **argv; | |
1992 | { | |
1993 | char *cp,*cppath; | |
1994 | unsigned long listno,thislistno,tmpuid,msgset; | |
1995 | unsigned long msgnum = 0; | |
1996 | unsigned long port = 0L; | |
1997 | unsigned long tmptarget; | |
1998 | unsigned int pos,l; | |
1999 | int flagindex = 0; | |
2000 | int flagchroot = 1; /* chroot listdir if SUID root */ | |
2001 | int ret; | |
2002 | char sep; | |
2003 | ||
2004 | /******************** we may be SUID ROOT ******************************/ | |
2005 | uid = (unsigned long) getuid(); /* should be http */ | |
2006 | euid = (unsigned long) geteuid(); /* chroot only if 0 */ | |
2007 | ||
2008 | if (!euid) { | |
2009 | if ((fd = open_read(EZ_CGIRC)) == -1) /* open config */ | |
2010 | strerr_die4sys(111,FATAL,ERR_OPEN,EZ_CGIRC,": "); | |
2011 | } else { | |
2012 | if ((fd = open_read(EZ_CGIRC_LOC)) == -1) /* open local config */ | |
2013 | strerr_die4sys(111,FATAL,ERR_OPEN,EZ_CGIRC_LOC,": "); | |
2014 | } | |
2015 | ||
2016 | substdio_fdbuf(&ssin,read,fd,inbuf,sizeof(inbuf)); /* set up buffer */ | |
2017 | /* ##### tainted info #####*/ | |
2018 | ||
2019 | cmd = env_get("QUERY_STRING"); /* get command */ | |
2020 | cppath = env_get("PATH_INFO"); /* get path_info */ | |
2021 | ||
2022 | if (!cppath || !*cppath) { | |
2023 | if (cmd && *cmd) { | |
2024 | cmd += scan_ulong(cmd,&thislistno); | |
2025 | if (*cmd == ':') cmd++; /* allow ':' after ln*/ | |
2026 | } else | |
2027 | thislistno = 0L; | |
2028 | } else { | |
2029 | cppath++; | |
2030 | cppath += scan_ulong(cppath,&thislistno); /* this listno */ | |
2031 | if (!thislistno || *cppath++ == '/') { | |
2032 | if (str_start(cppath,"index")) { | |
2033 | cppath += 5; | |
2034 | flagindex = 1; | |
2035 | if (!thislistno) { /* list index */ | |
2036 | drop_priv(0); /* <---- dropping privs */ | |
2037 | list_lists(); | |
2038 | close(fd); | |
2039 | _exit(0); | |
2040 | } | |
2041 | } | |
2042 | } /* rest done per list */ | |
2043 | } | |
2044 | ||
2045 | for (;;) { | |
2046 | if (getln(&ssin,&cfline,&match,'\n') == -1) /* read line */ | |
2047 | strerr_die4sys(111,FATAL,ERR_READ,fn.s,": "); | |
2048 | if (!match) | |
2049 | break; | |
2050 | if (*cfline.s == '#' || cfline.len == 1) continue; /* skip comment/blank */ | |
2051 | cfline.s[cfline.len - 1] = '\0'; /* so all are sz */ | |
2052 | pos = scan_ulong(cfline.s,&listno); /* listno for line */ | |
2053 | if (thislistno != listno) continue; | |
2054 | sep = cfline.s[pos++]; | |
2055 | if (cfline.s[pos] == '-') { /* no chroot if -uid*/ | |
2056 | flagchroot = 0; | |
2057 | pos++; | |
2058 | } | |
2059 | pos += scan_ulong(cfline.s+pos,&tmpuid); /* listno for line */ | |
2060 | if (tmpuid) uid = tmpuid; /* override default */ | |
2061 | if (!cfline.s[pos++] == sep) | |
2062 | die_syntax("missing separator after user id"); | |
2063 | if (cfline.s[pos] != '/') | |
2064 | die_syntax("dir"); /* absolute path */ | |
2065 | l = byte_chr(cfline.s + pos, cfline.len - pos,sep); | |
2066 | if (l == cfline.len - pos) /* listno:path:...*/ | |
2067 | die_syntax("missing separator after path"); | |
2068 | dir = cfline.s + pos; | |
2069 | pos += l; | |
2070 | cfline.s[pos++] = '\0'; /* .../dir\0 */ | |
2071 | break; /* do rest after dropping priv */ | |
2072 | } | |
2073 | close(fd); /* don't accept uid 0*/ | |
2074 | if (!dir) { | |
2075 | drop_priv(0); /* don't trust cgierr. No dir, no chroot */ | |
2076 | cgierr("list ",ERR_NOEXIST,""); | |
2077 | } | |
2078 | if (chdir(dir) == -1) /* chdir listdir */ | |
2079 | strerr_die4sys(111,FATAL,ERR_SWITCH,dir,": "); | |
2080 | drop_priv(flagchroot); | |
2081 | ||
2082 | /******************************* RELAX **********************************/ | |
2083 | ||
2084 | /********************* continue to process config line ******************/ | |
2085 | ||
2086 | flagrobot = 0; | |
2087 | if (cfline.s[pos] == '-') { | |
2088 | flagobscure = 1; | |
2089 | pos++; | |
2090 | } | |
2091 | local = cfline.s + pos; | |
2092 | l = byte_chr(cfline.s + pos, cfline.len - pos,sep); /* ... home */ | |
2093 | if (l < cfline.len - pos) { /* optional */ | |
2094 | pos += l; | |
2095 | cfline.s[pos++] = '\0'; | |
2096 | home = cfline.s + pos; | |
2097 | l = byte_chr(cfline.s + pos, cfline.len - pos,sep); /* ... charset */ | |
2098 | if (l < cfline.len - pos) { /* optional */ | |
2099 | pos += l; | |
2100 | cfline.s[pos++] = '\0'; | |
2101 | charset = cfline.s + pos; | |
2102 | l = byte_chr(cfline.s+pos,cfline.len - pos,sep); /* ... stylesheet */ | |
2103 | if (l < cfline.len - pos) { /* optional */ | |
2104 | pos += l; | |
2105 | cfline.s[pos++] = '\0'; | |
2106 | stylesheet = cfline.s + pos; | |
2107 | l = byte_chr(cfline.s+pos,cfline.len-pos,sep); /* ... bannerURL */ | |
2108 | if (l < cfline.len - pos) { /* optional */ | |
2109 | pos += l; | |
2110 | cfline.s[pos++] = '\0'; | |
2111 | banner = cfline.s + pos; | |
2112 | } | |
2113 | } | |
2114 | } | |
2115 | } | |
2116 | if (!charset || !*charset) /* rfc822 default */ | |
2117 | charset = EZ_CHARSET; | |
2118 | if (!stralloc_copys(&curcharset,charset)) die_nomem(); | |
2119 | csbase = decode_charset(curcharset.s,curcharset.len); | |
2120 | if (csbase == CS_BAD) csbase = CS_NONE; | |
2121 | cs = csbase; | |
2122 | pos = + str_rchr(local,'@'); | |
2123 | if (!local[pos]) | |
2124 | die_syntax("listaddress lacks '@'"); /* require host */ | |
2125 | local[pos++] = '\0'; | |
2126 | host = local + pos; | |
2127 | ||
2128 | /********************* Accomodate robots and PATH_INFO ****************/ | |
2129 | ||
2130 | if (flagindex) { | |
2131 | if (*(cppath++) == '/') { /* /2/index/123 */ | |
2132 | cppath += scan_ulong(cppath,&msgset); | |
2133 | list_set(thislistno,msgset); | |
2134 | } else /* /2/index */ | |
2135 | list_list(thislistno); | |
2136 | _exit(0); | |
2137 | } | |
2138 | ||
2139 | if (cppath && *cppath) { /* /2/msgnum */ | |
2140 | flagrobot = 1; /* allow index, but "nofollow" */ | |
2141 | scan_ulong(cppath,&msgnum); | |
2142 | } /* dealt with normally */ | |
2143 | ||
2144 | /********************* Get info from server on BASE etc ****************/ | |
2145 | ||
2146 | if (!stralloc_copys(&base,"<BASE href=\"http://")) die_nomem(); | |
2147 | cp = env_get("SERVER_PORT"); | |
2148 | if (cp) { /* port */ | |
2149 | (void) scan_ulong(cp,&port); | |
2150 | if ((unsigned int) port == 443) { /* https: */ | |
2151 | if (!stralloc_copys(&base,"<BASE href=\"https://")) die_nomem(); | |
2152 | } | |
2153 | } | |
2154 | if (port && (unsigned int) port != 80 && (unsigned int) port != 443) { | |
2155 | if (!stralloc_cats(&base,":")) die_nomem(); | |
2156 | if (!stralloc_catb(&base,strnum,fmt_ulong(strnum,port))) die_nomem(); | |
2157 | } | |
2158 | if (!(cp = env_get("HTTP_HOST"))) | |
2159 | if (!(cp = env_get("SERVER_NAME"))) | |
2160 | strerr_die2x(100,FATAL,"both HTTP_HOST and SERVER_NAME are empty"); | |
2161 | if (!stralloc_cats(&base,cp)) die_nomem(); | |
2162 | if (!(cp = env_get("SCRIPT_NAME"))) | |
2163 | strerr_die2x(100,FATAL,"empty SCRIPT_NAME"); | |
2164 | if (!stralloc_cats(&base,cp)) die_nomem(); | |
2165 | if (!stralloc_cats(&base,"\">\n")) die_nomem(); | |
2166 | if (!stralloc_copys(&url,"<A HREF=\"")) die_nomem(); | |
2167 | pos = str_rchr(cp,'/'); | |
2168 | if (cp[pos]) | |
2169 | if (!stralloc_cats(&url,cp + pos + 1)) die_nomem(); | |
2170 | if (!stralloc_cats(&url,"?")) die_nomem(); | |
2171 | if (thislistno) { | |
2172 | if (!stralloc_catb(&url,strnum,fmt_ulong(strnum,thislistno))) die_nomem(); | |
2173 | if (!stralloc_cats(&url,":")) die_nomem(); | |
2174 | } | |
2175 | ||
2176 | cache = 1; /* don't know if we want to cache */ | |
2177 | ||
2178 | /****************************** Get command ****************************/ | |
2179 | ||
2180 | if (msgnum) { /* to support /listno/msgno */ | |
2181 | msginfo.target = msgnum; | |
2182 | msginfo.item = ITEM_MESSAGE; | |
2183 | cache = 2; | |
2184 | } else { | |
2185 | (void) decode_cmd(cmd,&msginfo); | |
2186 | if (!do_cmd(&msginfo)) | |
2187 | cgierr("I'm sorry, Dave ... I can't do that, Dave ...","",""); | |
2188 | } | |
2189 | ||
2190 | switch (msginfo.item) { | |
2191 | case ITEM_MESSAGE: | |
2192 | if (!show_message(&msginfo)) { /* assume next exists ... */ | |
2193 | cache = 0; /* border cond. - no cache */ | |
2194 | msginfo.target = msginfo.source; /* show same */ | |
2195 | msginfo.subjnav = 0; | |
2196 | msginfo.authnav = 0; | |
2197 | ret = show_message(&msginfo); | |
2198 | } | |
2199 | break; | |
2200 | case ITEM_AUTHOR: | |
2201 | if (!show_object(&msginfo,ITEM_AUTHOR)) | |
2202 | cgierr ("I couldn't find the author for that message","",""); | |
2203 | break; | |
2204 | case ITEM_SUBJECT: | |
2205 | if (!show_object(&msginfo,ITEM_SUBJECT)) | |
2206 | cgierr ("I couldn't find the subject for that message","",""); | |
2207 | break; | |
2208 | case ITEM_DATE: | |
2209 | if (!show_object(&msginfo,ITEM_DATE)) { | |
2210 | finddate(&msginfo); | |
2211 | ret = show_object(&msginfo,ITEM_DATE); | |
2212 | } | |
2213 | break; | |
2214 | case ITEM_INDEX: | |
2215 | if (!show_index(&msginfo)) { | |
2216 | tmptarget = msginfo.target; | |
2217 | findlastmsg(&msginfo); | |
2218 | cache = 0; /* latest one - no cache */ | |
2219 | if (!msginfo.target || msginfo.target > tmptarget) { | |
2220 | cache = 2; /* won't change */ | |
2221 | firstdate(&msginfo,1); /* first thread index */ | |
2222 | msginfo.direction = DIRECT_FIRST; | |
2223 | date2msg(&msginfo); /* (may not be 1 if parts removed) */ | |
2224 | } | |
2225 | ret = show_index(&msginfo); | |
2226 | } | |
2227 | break; | |
2228 | default: | |
2229 | strerr_die2x(100,FATAL,"bad item in main"); | |
2230 | } | |
2231 | if (!ret) { | |
2232 | findlastmsg(&msginfo); /* as last resort; last msgindex */ | |
2233 | cache = 0; | |
2234 | ret = show_message(&msginfo); | |
2235 | } | |
2236 | ||
2237 | _exit(0); | |
2238 | } |