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1.11 ! kristaps 1: /* $Id: cgi.c,v 1.10 2011/12/07 00:23:04 kristaps Exp $ */
1.6 kristaps 2: /*
3: * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
21: #include <sys/param.h>
22: #include <sys/wait.h>
23:
1.1 kristaps 24: #include <assert.h>
1.6 kristaps 25: #include <ctype.h>
26: #include <errno.h>
1.1 kristaps 27: #include <fcntl.h>
1.6 kristaps 28: #include <limits.h>
1.1 kristaps 29: #include <regex.h>
30: #include <stdio.h>
31: #include <stdarg.h>
1.5 kristaps 32: #include <stdint.h>
1.1 kristaps 33: #include <stdlib.h>
34: #include <string.h>
1.6 kristaps 35: #include <unistd.h>
1.1 kristaps 36:
1.6 kristaps 37: #include "apropos_db.h"
1.4 schwarze 38: #include "mandoc.h"
1.8 kristaps 39: #include "mdoc.h"
40: #include "man.h"
41: #include "main.h"
1.6 kristaps 42: #include "manpath.h"
43:
44: #ifdef __linux__
45: # include <db_185.h>
46: #else
47: # include <db.h>
48: #endif
1.1 kristaps 49:
50: enum page {
51: PAGE_INDEX,
52: PAGE_SEARCH,
1.6 kristaps 53: PAGE_SHOW,
1.1 kristaps 54: PAGE__MAX
55: };
56:
57: struct kval {
58: char *key;
59: char *val;
60: };
61:
62: struct req {
1.6 kristaps 63: struct kval *fields;
1.1 kristaps 64: size_t fieldsz;
65: enum page page;
66: };
67:
1.6 kristaps 68: static int atou(const char *, unsigned *);
1.9 kristaps 69: static void catman(const char *);
1.8 kristaps 70: static void format(const char *);
1.6 kristaps 71: static void html_print(const char *);
1.10 kristaps 72: static void html_putchar(char);
1.1 kristaps 73: static int kval_decode(char *);
74: static void kval_parse(struct kval **, size_t *, char *);
75: static void kval_free(struct kval *, size_t);
1.6 kristaps 76: static void pg_index(const struct manpaths *,
77: const struct req *, char *);
78: static void pg_search(const struct manpaths *,
79: const struct req *, char *);
80: static void pg_show(const struct manpaths *,
81: const struct req *, char *);
1.7 kristaps 82: static void resp_bad(void);
1.6 kristaps 83: static void resp_baddb(void);
1.10 kristaps 84: static void resp_error400(void);
85: static void resp_error404(const char *);
1.6 kristaps 86: static void resp_begin_html(int, const char *);
87: static void resp_begin_http(int, const char *);
88: static void resp_end_html(void);
89: static void resp_index(const struct req *);
90: static void resp_search(struct res *, size_t, void *);
91: static void resp_searchform(const struct req *);
92:
93: static const char *progname;
1.7 kristaps 94: static const char *cache;
1.6 kristaps 95: static const char *host;
1.1 kristaps 96:
97: static const char * const pages[PAGE__MAX] = {
98: "index", /* PAGE_INDEX */
99: "search", /* PAGE_SEARCH */
1.6 kristaps 100: "show", /* PAGE_SHOW */
1.1 kristaps 101: };
102:
1.6 kristaps 103: /*
104: * This is just OpenBSD's strtol(3) suggestion.
105: * I use it instead of strtonum(3) for portability's sake.
106: */
107: static int
108: atou(const char *buf, unsigned *v)
109: {
110: char *ep;
111: long lval;
112:
113: errno = 0;
114: lval = strtol(buf, &ep, 10);
115: if (buf[0] == '\0' || *ep != '\0')
116: return(0);
117: if ((errno == ERANGE && (lval == LONG_MAX ||
118: lval == LONG_MIN)) ||
119: (lval > UINT_MAX || lval < 0))
120: return(0);
121:
122: *v = (unsigned int)lval;
123: return(1);
124: }
1.1 kristaps 125:
1.10 kristaps 126: static void
127: html_putchar(char c)
128: {
129:
130: switch (c) {
131: case ('"'):
132: printf(""e;");
133: break;
134: case ('&'):
135: printf("&");
136: break;
137: case ('>'):
138: printf(">");
139: break;
140: case ('<'):
141: printf("<");
142: break;
143: default:
144: putchar((unsigned char)c);
145: break;
146: }
147: }
148:
1.6 kristaps 149: /*
150: * Print a word, escaping HTML along the way.
151: * This will pass non-ASCII straight to output: be warned!
152: */
1.1 kristaps 153: static void
1.6 kristaps 154: html_print(const char *p)
1.1 kristaps 155: {
1.6 kristaps 156:
157: if (NULL == p)
158: return;
1.1 kristaps 159: while ('\0' != *p)
1.10 kristaps 160: html_putchar(*p++);
1.1 kristaps 161: }
162:
163: static void
164: kval_free(struct kval *p, size_t sz)
165: {
166: int i;
167:
168: for (i = 0; i < (int)sz; i++) {
169: free(p[i].key);
170: free(p[i].val);
171: }
172: free(p);
173: }
174:
175: /*
176: * Parse out key-value pairs from an HTTP request variable.
1.6 kristaps 177: * This can be either a cookie or a POST/GET string, although man.cgi
178: * uses only GET for simplicity.
1.1 kristaps 179: */
180: static void
181: kval_parse(struct kval **kv, size_t *kvsz, char *p)
182: {
183: char *key, *val;
184: size_t sz, cur;
185:
186: cur = 0;
187:
188: while (p && '\0' != *p) {
189: while (' ' == *p)
190: p++;
191:
192: key = p;
193: val = NULL;
194:
195: if (NULL != (p = strchr(p, '='))) {
196: *p++ = '\0';
197: val = p;
198:
199: sz = strcspn(p, ";&");
200: /* LINTED */
201: p += sz;
202:
203: if ('\0' != *p)
204: *p++ = '\0';
205: } else {
206: p = key;
207: sz = strcspn(p, ";&");
208: /* LINTED */
209: p += sz;
210:
211: if ('\0' != *p)
212: p++;
213: continue;
214: }
215:
216: if ('\0' == *key || '\0' == *val)
217: continue;
218:
219: /* Just abort handling. */
220:
221: if ( ! kval_decode(key))
222: return;
223: if ( ! kval_decode(val))
224: return;
225:
226: if (*kvsz + 1 >= cur) {
227: cur++;
228: *kv = mandoc_realloc
229: (*kv, cur * sizeof(struct kval));
230: }
231:
232: (*kv)[(int)*kvsz].key = mandoc_strdup(key);
233: (*kv)[(int)*kvsz].val = mandoc_strdup(val);
234: (*kvsz)++;
235: }
236: }
237:
238: /*
1.6 kristaps 239: * HTTP-decode a string. The standard explanation is that this turns
240: * "%4e+foo" into "n foo" in the regular way. This is done in-place
241: * over the allocated string.
1.1 kristaps 242: */
243: static int
244: kval_decode(char *p)
245: {
246: char hex[3];
247: int c;
248:
249: hex[2] = '\0';
250:
251: for ( ; '\0' != *p; p++) {
252: if ('%' == *p) {
253: if ('\0' == (hex[0] = *(p + 1)))
254: return(0);
255: if ('\0' == (hex[1] = *(p + 2)))
256: return(0);
257: if (1 != sscanf(hex, "%x", &c))
258: return(0);
259: if ('\0' == c)
260: return(0);
261:
262: *p = (char)c;
263: memmove(p + 1, p + 3, strlen(p + 3) + 1);
264: } else
265: *p = '+' == *p ? ' ' : *p;
266: }
267:
268: *p = '\0';
269: return(1);
270: }
271:
1.6 kristaps 272: static void
273: resp_begin_http(int code, const char *msg)
274: {
275:
276: if (200 != code)
277: printf("Status: %d %s\n", code, msg);
278:
279: puts("Content-Type: text/html; charset=utf-8" "\n"
280: "Cache-Control: no-cache" "\n"
281: "Pragma: no-cache" "\n"
282: "");
283:
284: fflush(stdout);
285: }
286:
287: static void
288: resp_begin_html(int code, const char *msg)
289: {
290:
291: resp_begin_http(code, msg);
292:
293: puts("<!DOCTYPE HTML PUBLIC " "\n"
294: " \"-//W3C//DTD HTML 4.01//EN\"" "\n"
295: " \"http://www.w3.org/TR/html4/strict.dtd\">" "\n"
296: "<HTML>" "\n"
297: " <HEAD>" "\n"
1.10 kristaps 298: " <META HTTP-EQUIV=\"Content-Type\" " "\n"
299: " CONTENT=\"text/html; charset=utf-8\">" "\n"
1.6 kristaps 300: " <TITLE>System Manpage Reference</TITLE>" "\n"
301: " </HEAD>" "\n"
302: " <BODY>" "\n"
303: "<!-- Begin page content. //-->");
304: }
305:
306: static void
307: resp_end_html(void)
308: {
309:
310: puts(" </BODY>\n</HTML>");
311: }
312:
313: static void
314: resp_searchform(const struct req *req)
315: {
316: int i;
317: const char *expr, *sec, *arch;
318:
319: expr = sec = arch = "";
320:
321: for (i = 0; i < (int)req->fieldsz; i++)
322: if (0 == strcmp(req->fields[i].key, "expr"))
323: expr = req->fields[i].val;
324: else if (0 == strcmp(req->fields[i].key, "sec"))
325: sec = req->fields[i].val;
326: else if (0 == strcmp(req->fields[i].key, "arch"))
327: arch = req->fields[i].val;
328:
329: puts("<!-- Begin search form. //-->");
330: printf("<FORM ACTION=\"");
331: html_print(progname);
1.9 kristaps 332: printf("/search.html\" METHOD=\"get\">\n");
1.10 kristaps 333: puts(" <FIELDSET>\n"
1.6 kristaps 334: " <INPUT TYPE=\"submit\" VALUE=\"Search:\">");
335: printf(" Terms: <INPUT TYPE=\"text\" "
336: "SIZE=\"60\" NAME=\"expr\" VALUE=\"");
337: html_print(expr);
338: puts("\">");
339: printf(" Section: <INPUT TYPE=\"text\" "
340: "SIZE=\"4\" NAME=\"sec\" VALUE=\"");
341: html_print(sec);
342: puts("\">");
343: printf(" Arch: <INPUT TYPE=\"text\" "
344: "SIZE=\"8\" NAME=\"arch\" VALUE=\"");
345: html_print(arch);
346: puts("\">");
347: puts(" </FIELDSET>\n</FORM>\n<!-- End search form. //-->");
348: }
349:
350: static void
351: resp_index(const struct req *req)
352: {
353:
354: resp_begin_html(200, NULL);
355: resp_searchform(req);
356: resp_end_html();
357: }
358:
359: static void
1.10 kristaps 360: resp_error400(void)
1.9 kristaps 361: {
362:
1.10 kristaps 363: resp_begin_html(400, "Query Malformed");
364: puts("<H1>Malformed Query</H1>\n"
365: "<P>\n"
366: " The query your entered was malformed.\n"
367: " Try again from the\n"
368: " <A HREF=\"/index.html\">main page</A>\n"
369: "</P>");
1.9 kristaps 370: resp_end_html();
371: }
372:
373: static void
1.10 kristaps 374: resp_error404(const char *page)
1.6 kristaps 375: {
376:
377: resp_begin_html(404, "Not Found");
1.10 kristaps 378: puts("<H1>Page Not Found</H1>\n"
379: "<P>\n"
380: " The page you're looking for, ");
381: printf(" <B>");
382: html_print(page);
383: puts("</B>,\n"
384: " could not be found.\n"
385: " Try searching from the\n"
386: " <A HREF=\"/index.html\">main page</A>\n"
387: "</P>");
1.6 kristaps 388: resp_end_html();
389: }
1.1 kristaps 390:
391: static void
1.7 kristaps 392: resp_bad(void)
393: {
394: resp_begin_html(500, "Internal Server Error");
395: puts("<P>Generic badness happened.</P>");
396: resp_end_html();
397: }
398:
399: static void
1.6 kristaps 400: resp_baddb(void)
1.1 kristaps 401: {
402:
1.6 kristaps 403: resp_begin_html(500, "Internal Server Error");
404: puts("<P>Your database is broken.</P>");
405: resp_end_html();
1.1 kristaps 406: }
407:
408: static void
1.6 kristaps 409: resp_search(struct res *r, size_t sz, void *arg)
1.1 kristaps 410: {
411: int i;
412:
1.6 kristaps 413: if (1 == sz) {
414: /*
415: * If we have just one result, then jump there now
416: * without any delay.
417: */
418: puts("Status: 303 See Other");
419: printf("Location: http://%s%s/show/%u/%u.html\n",
420: host, progname,
421: r[0].volume, r[0].rec);
422: puts("Content-Type: text/html; charset=utf-8\n");
423: return;
424: }
425:
1.11 ! kristaps 426: resp_begin_http(200, NULL);
! 427: puts("<!DOCTYPE HTML PUBLIC " "\n"
! 428: " \"-//W3C//DTD HTML 4.01//EN\"" "\n"
! 429: " \"http://www.w3.org/TR/html4/strict.dtd\">" "\n"
! 430: "<HTML>" "\n"
! 431: " <HEAD>" "\n"
! 432: " <META HTTP-EQUIV=\"Content-Type\" " "\n"
! 433: " CONTENT=\"text/html; charset=utf-8\">" "\n"
! 434: " <LINK REL=\"stylesheet\" HREF=\"/catman.css\"" "\n"
! 435: " TYPE=\"text/css\" media=\"all\">" "\n"
! 436: " <TITLE>System Manpage Reference</TITLE>" "\n"
! 437: " </HEAD>" "\n"
! 438: " <BODY>" "\n"
! 439: "<!-- Begin page content. //-->");
! 440:
1.6 kristaps 441: resp_searchform((const struct req *)arg);
442:
443: if (0 == sz)
444: puts("<P>No results found.</P>");
1.1 kristaps 445:
446: for (i = 0; i < (int)sz; i++) {
1.6 kristaps 447: printf("<P><A HREF=\"");
448: html_print(progname);
449: printf("/show/%u/%u.html\">", r[i].volume, r[i].rec);
450: html_print(r[i].title);
1.1 kristaps 451: putchar('(');
1.6 kristaps 452: html_print(r[i].cat);
453: if (r[i].arch && '\0' != *r[i].arch) {
454: putchar('/');
455: html_print(r[i].arch);
456: }
457: printf(")</A> ");
458: html_print(r[i].desc);
459: puts("</P>");
1.1 kristaps 460: }
1.6 kristaps 461:
462: resp_end_html();
463: }
464:
465: /* ARGSUSED */
466: static void
467: pg_index(const struct manpaths *ps, const struct req *req, char *path)
468: {
469:
470: resp_index(req);
1.1 kristaps 471: }
472:
473: static void
1.9 kristaps 474: catman(const char *file)
475: {
1.10 kristaps 476: FILE *f;
477: size_t len;
478: int i;
479: char *p;
480: int italic, bold;
1.9 kristaps 481:
1.10 kristaps 482: if (NULL == (f = fopen(file, "r"))) {
1.9 kristaps 483: resp_baddb();
484: return;
485: }
486:
1.10 kristaps 487: resp_begin_html(200, NULL);
488:
489: puts("<PRE>");
490: while (NULL != (p = fgetln(f, &len))) {
491: bold = italic = 0;
492: for (i = 0; i < (int)len - 1; i++) {
493: /*
494: * This means that the catpage is out of state.
495: * Ignore it and keep going (although the
496: * catpage is bogus).
497: */
498:
499: if ('\b' == p[i] || '\n' == p[i])
500: continue;
501:
502: /*
503: * Print a regular character.
504: * Close out any bold/italic scopes.
505: * If we're in back-space mode, make sure we'll
506: * have something to enter when we backspace.
507: */
508:
509: if ('\b' != p[i + 1]) {
510: if (italic)
511: printf("</I>");
512: if (bold)
513: printf("</B>");
514: italic = bold = 0;
515: html_putchar(p[i]);
516: continue;
517: } else if (i + 2 >= (int)len)
518: continue;
519:
520: /* Italic mode. */
521:
522: if ('_' == p[i]) {
523: if (bold)
524: printf("</B>");
525: if ( ! italic)
526: printf("<I>");
527: bold = 0;
528: italic = 1;
529: i += 2;
530: html_putchar(p[i]);
531: continue;
532: }
533:
534: /*
535: * Handle funny behaviour troff-isms.
536: * These grok'd from the original man2html.c.
537: */
538:
539: if (('+' == p[i] && 'o' == p[i + 2]) ||
540: ('o' == p[i] && '+' == p[i + 2]) ||
541: ('|' == p[i] && '=' == p[i + 2]) ||
542: ('=' == p[i] && '|' == p[i + 2]) ||
543: ('*' == p[i] && '=' == p[i + 2]) ||
544: ('=' == p[i] && '*' == p[i + 2]) ||
545: ('*' == p[i] && '|' == p[i + 2]) ||
546: ('|' == p[i] && '*' == p[i + 2])) {
547: if (italic)
548: printf("</I>");
549: if (bold)
550: printf("</B>");
551: italic = bold = 0;
552: putchar('*');
553: i += 2;
554: continue;
555: } else if (('|' == p[i] && '-' == p[i + 2]) ||
556: ('-' == p[i] && '|' == p[i + 1]) ||
557: ('+' == p[i] && '-' == p[i + 1]) ||
558: ('-' == p[i] && '+' == p[i + 1]) ||
559: ('+' == p[i] && '|' == p[i + 1]) ||
560: ('|' == p[i] && '+' == p[i + 1])) {
561: if (italic)
562: printf("</I>");
563: if (bold)
564: printf("</B>");
565: italic = bold = 0;
566: putchar('+');
567: i += 2;
568: continue;
569: }
570:
571: /* Bold mode. */
572:
573: if (italic)
574: printf("</I>");
575: if ( ! bold)
576: printf("<B>");
577: bold = 1;
578: italic = 0;
579: i += 2;
580: html_putchar(p[i]);
581: }
582:
583: /*
584: * Clean up the last character.
585: * We can get to a newline; don't print that.
586: */
1.9 kristaps 587:
1.10 kristaps 588: if (italic)
589: printf("</I>");
590: if (bold)
591: printf("</B>");
1.9 kristaps 592:
1.10 kristaps 593: if (i == (int)len - 1 && '\n' != p[i])
594: html_putchar(p[i]);
1.9 kristaps 595:
1.10 kristaps 596: putchar('\n');
597: }
598:
599: puts("</PRE>\n"
600: "</BODY>\n"
601: "</HTML>");
602:
603: fclose(f);
1.9 kristaps 604: }
605:
606: static void
1.8 kristaps 607: format(const char *file)
1.7 kristaps 608: {
1.8 kristaps 609: struct mparse *mp;
610: int fd;
611: struct mdoc *mdoc;
612: struct man *man;
613: void *vp;
614: enum mandoclevel rc;
1.10 kristaps 615: char opts[MAXPATHLEN + 128];
1.7 kristaps 616:
1.8 kristaps 617: if (-1 == (fd = open(file, O_RDONLY, 0))) {
618: resp_baddb();
1.7 kristaps 619: return;
620: }
621:
1.8 kristaps 622: mp = mparse_alloc(MPARSE_AUTO, MANDOCLEVEL_FATAL, NULL, NULL);
623: rc = mparse_readfd(mp, fd, file);
624: close(fd);
1.7 kristaps 625:
1.8 kristaps 626: if (rc >= MANDOCLEVEL_FATAL) {
1.7 kristaps 627: resp_baddb();
628: return;
629: }
630:
1.11 ! kristaps 631: snprintf(opts, sizeof(opts), "style=/man.css,"
1.10 kristaps 632: "man=%s/search.html?sec=%%S&expr=%%N,"
1.11 ! kristaps 633: /*"includes=/cgi-bin/man.cgi/usr/include/%%I"*/,
1.10 kristaps 634: progname);
635:
1.8 kristaps 636: mparse_result(mp, &mdoc, &man);
1.10 kristaps 637: vp = html_alloc(opts);
1.7 kristaps 638:
1.8 kristaps 639: if (NULL != mdoc) {
640: resp_begin_http(200, NULL);
641: html_mdoc(vp, mdoc);
642: } else if (NULL != man) {
643: resp_begin_http(200, NULL);
644: html_man(vp, man);
645: } else
646: resp_baddb();
1.7 kristaps 647:
1.8 kristaps 648: html_free(vp);
649: mparse_free(mp);
1.7 kristaps 650: }
651:
652: static void
1.6 kristaps 653: pg_show(const struct manpaths *ps, const struct req *req, char *path)
1.1 kristaps 654: {
1.6 kristaps 655: char *sub;
1.7 kristaps 656: char file[MAXPATHLEN];
1.9 kristaps 657: const char *fn, *cp;
1.6 kristaps 658: int rc;
659: unsigned int vol, rec;
1.9 kristaps 660: DB *idx;
1.6 kristaps 661: DBT key, val;
662:
663: if (NULL == path) {
1.10 kristaps 664: resp_error400();
1.6 kristaps 665: return;
666: } else if (NULL == (sub = strrchr(path, '/'))) {
1.10 kristaps 667: resp_error400();
1.6 kristaps 668: return;
669: } else
670: *sub++ = '\0';
671:
672: if ( ! (atou(path, &vol) && atou(sub, &rec))) {
1.10 kristaps 673: resp_error400();
1.6 kristaps 674: return;
675: } else if (vol >= (unsigned int)ps->sz) {
1.10 kristaps 676: resp_error400();
1.6 kristaps 677: return;
678: }
679:
680: strlcpy(file, ps->paths[vol], MAXPATHLEN);
681: strlcat(file, "/mandoc.index", MAXPATHLEN);
682:
683: /* Open the index recno(3) database. */
684:
1.9 kristaps 685: idx = dbopen(file, O_RDONLY, 0, DB_RECNO, NULL);
686: if (NULL == idx) {
1.6 kristaps 687: resp_baddb();
688: return;
689: }
690:
691: key.data = &rec;
692: key.size = 4;
693:
1.9 kristaps 694: if (0 != (rc = (*idx->get)(idx, &key, &val, 0))) {
1.10 kristaps 695: rc < 0 ? resp_baddb() : resp_error400();
1.9 kristaps 696: goto out;
1.6 kristaps 697: }
698:
1.9 kristaps 699: cp = (char *)val.data;
1.6 kristaps 700:
1.9 kristaps 701: if (NULL == (fn = memchr(cp, '\0', val.size)))
702: resp_baddb();
703: else if (++fn - cp >= (int)val.size)
704: resp_baddb();
705: else if (NULL == memchr(fn, '\0', val.size - (fn - cp)))
706: resp_baddb();
707: else {
708: strlcpy(file, ps->paths[vol], MAXPATHLEN);
709: strlcat(file, "/", MAXPATHLEN);
710: strlcat(file, fn, MAXPATHLEN);
711: if (0 == strcmp(cp, "cat"))
712: catman(file);
713: else
714: format(file);
715: }
716: out:
717: (*idx->close)(idx);
1.6 kristaps 718: }
719:
720: static void
721: pg_search(const struct manpaths *ps, const struct req *req, char *path)
722: {
723: size_t tt;
724: int i, sz, rc;
725: const char *ep, *start;
726: char **cp;
727: struct opts opt;
728: struct expr *expr;
729:
730: expr = NULL;
731: cp = NULL;
732: ep = NULL;
733: sz = 0;
1.1 kristaps 734:
735: memset(&opt, 0, sizeof(struct opts));
1.6 kristaps 736:
737: for (sz = i = 0; i < (int)req->fieldsz; i++)
738: if (0 == strcmp(req->fields[i].key, "expr"))
739: ep = req->fields[i].val;
740: else if (0 == strcmp(req->fields[i].key, "sec"))
741: opt.cat = req->fields[i].val;
742: else if (0 == strcmp(req->fields[i].key, "arch"))
743: opt.arch = req->fields[i].val;
744:
745: /*
746: * Poor man's tokenisation.
747: * Just break apart by spaces.
748: * Yes, this is half-ass. But it works for now.
749: */
750:
751: while (ep && isspace((unsigned char)*ep))
752: ep++;
753:
754: while (ep && '\0' != *ep) {
755: cp = mandoc_realloc(cp, (sz + 1) * sizeof(char *));
756: start = ep;
757: while ('\0' != *ep && ! isspace((unsigned char)*ep))
758: ep++;
759: cp[sz] = mandoc_malloc((ep - start) + 1);
760: memcpy(cp[sz], start, ep - start);
761: cp[sz++][ep - start] = '\0';
762: while (isspace((unsigned char)*ep))
763: ep++;
764: }
765:
766: rc = -1;
767:
768: /*
769: * Pump down into apropos backend.
770: * The resp_search() function is called with the results.
771: */
772:
773: if (NULL != (expr = exprcomp(sz, cp, &tt)))
774: rc = apropos_search
775: (ps->sz, ps->paths, &opt,
776: expr, tt, (void *)req, resp_search);
777:
778: /* ...unless errors occured. */
779:
780: if (0 == rc)
781: resp_baddb();
782: else if (-1 == rc)
1.10 kristaps 783: resp_search(NULL, 0, (void *)req);
1.6 kristaps 784:
785: for (i = 0; i < sz; i++)
786: free(cp[i]);
787:
788: free(cp);
789: exprfree(expr);
1.1 kristaps 790: }
791:
792: int
793: main(void)
794: {
795: int i;
796: struct req req;
1.6 kristaps 797: char *p, *path, *subpath;
798: struct manpaths paths;
799:
800: /* HTTP init: read and parse the query string. */
801:
802: progname = getenv("SCRIPT_NAME");
803: if (NULL == progname)
804: progname = "";
805:
1.7 kristaps 806: cache = getenv("CACHE_DIR");
807: if (NULL == cache)
808: cache = "/cache/man.cgi";
809:
1.8 kristaps 810: if (-1 == chdir(cache)) {
811: resp_bad();
812: return(EXIT_FAILURE);
1.7 kristaps 813: }
814:
1.6 kristaps 815: host = getenv("HTTP_HOST");
816: if (NULL == host)
817: host = "localhost";
1.1 kristaps 818:
819: memset(&req, 0, sizeof(struct req));
820:
821: if (NULL != (p = getenv("QUERY_STRING")))
822: kval_parse(&req.fields, &req.fieldsz, p);
823:
1.6 kristaps 824: /* Resolve leading subpath component. */
1.1 kristaps 825:
1.6 kristaps 826: subpath = path = NULL;
1.1 kristaps 827: req.page = PAGE__MAX;
828:
829: if (NULL == (path = getenv("PATH_INFO")) || '\0' == *path)
830: req.page = PAGE_INDEX;
1.6 kristaps 831:
1.1 kristaps 832: if (NULL != path && '/' == *path && '\0' == *++path)
833: req.page = PAGE_INDEX;
834:
1.6 kristaps 835: /* Strip file suffix. */
836:
837: if (NULL != path && NULL != (p = strrchr(path, '.')))
838: if (NULL != p && NULL == strchr(p, '/'))
839: *p++ = '\0';
840:
841: /* Resolve subpath component. */
1.1 kristaps 842:
843: if (NULL != path && NULL != (subpath = strchr(path, '/')))
1.6 kristaps 844: *subpath++ = '\0';
1.1 kristaps 845:
1.6 kristaps 846: /* Map path into one we recognise. */
1.1 kristaps 847:
848: if (NULL != path && '\0' != *path)
849: for (i = 0; i < (int)PAGE__MAX; i++)
850: if (0 == strcmp(pages[i], path)) {
851: req.page = (enum page)i;
852: break;
853: }
854:
1.6 kristaps 855: /* Initialise MANPATH. */
856:
857: memset(&paths, 0, sizeof(struct manpaths));
1.9 kristaps 858: manpath_manconf("etc/catman.conf", &paths);
1.6 kristaps 859:
860: /* Route pages. */
861:
1.1 kristaps 862: switch (req.page) {
863: case (PAGE_INDEX):
1.6 kristaps 864: pg_index(&paths, &req, subpath);
1.1 kristaps 865: break;
866: case (PAGE_SEARCH):
1.6 kristaps 867: pg_search(&paths, &req, subpath);
868: break;
869: case (PAGE_SHOW):
870: pg_show(&paths, &req, subpath);
1.1 kristaps 871: break;
872: default:
1.10 kristaps 873: resp_error404(path);
1.1 kristaps 874: break;
875: }
876:
1.6 kristaps 877: manpath_free(&paths);
1.1 kristaps 878: kval_free(req.fields, req.fieldsz);
1.6 kristaps 879:
1.1 kristaps 880: return(EXIT_SUCCESS);
881: }