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1.11 ! schwarze 1: /* $Id: cgi.c,v 1.10 2014/07/13 12:31:00 schwarze Exp $ */
1.1 schwarze 2: /*
3: * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
4: * Copyright (c) 2014 Ingo Schwarze <schwarze@usta.de>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18: #include <ctype.h>
19: #include <errno.h>
20: #include <fcntl.h>
21: #include <limits.h>
22: #include <stdio.h>
23: #include <stdlib.h>
24: #include <string.h>
25: #include <unistd.h>
26:
27: #include "mandoc.h"
28: #include "mandoc_aux.h"
29: #include "main.h"
30: #include "manpath.h"
31: #include "mansearch.h"
1.7 schwarze 32: #include "cgi.h"
1.1 schwarze 33:
34: /*
35: * A query as passed to the search function.
36: */
37: struct query {
38: const char *manpath; /* desired manual directory */
39: const char *arch; /* architecture */
40: const char *sec; /* manual section */
41: const char *expr; /* unparsed expression string */
1.5 schwarze 42: int equal; /* match whole names, not substrings */
1.1 schwarze 43: };
44:
45: struct req {
46: struct query q;
47: char **p; /* array of available manpaths */
48: size_t psz; /* number of available manpaths */
49: };
50:
51: static void catman(const struct req *, const char *);
52: static int cmp(const void *, const void *);
53: static void format(const struct req *, const char *);
54: static void html_print(const char *);
55: static void html_printquery(const struct req *);
56: static void html_putchar(char);
57: static int http_decode(char *);
58: static void http_parse(struct req *, char *);
59: static void http_print(const char *);
60: static void http_putchar(char);
61: static void http_printquery(const struct req *);
62: static void pathgen(struct req *);
1.6 schwarze 63: static void pg_search(const struct req *);
64: static void pg_show(const struct req *, const char *);
1.1 schwarze 65: static void resp_begin_html(int, const char *);
66: static void resp_begin_http(int, const char *);
67: static void resp_end_html(void);
68: static void resp_error_badrequest(const char *);
69: static void resp_error_internal(void);
70: static void resp_index(const struct req *);
71: static void resp_noresult(const struct req *,
72: const char *);
73: static void resp_search(const struct req *,
74: struct manpage *, size_t);
75: static void resp_searchform(const struct req *);
1.10 schwarze 76: static void resp_show(const struct req *, const char *);
1.1 schwarze 77:
78: static const char *scriptname; /* CGI script name */
79: static const char *httphost; /* hostname used in the URIs */
80:
1.10 schwarze 81: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.8 schwarze 82: static const char *const sec_numbers[] = {
83: "0", "1", "2", "3", "3p", "4", "5", "6", "7", "8", "9"
84: };
85: static const char *const sec_names[] = {
86: "All Sections",
87: "1 - General Commands",
88: "2 - System Calls",
89: "3 - Subroutines",
90: "3p - Perl Subroutines",
91: "4 - Special Files",
92: "5 - File Formats",
93: "6 - Games",
94: "7 - Macros and Conventions",
95: "8 - Maintenance Commands",
96: "9 - Kernel Interface"
97: };
98: static const int sec_MAX = sizeof(sec_names) / sizeof(char *);
99:
100: static const char *const arch_names[] = {
101: "amd64", "alpha", "armish", "armv7",
102: "aviion", "hppa", "hppa64", "i386",
103: "ia64", "landisk", "loongson", "luna88k",
104: "macppc", "mips64", "octeon", "sgi",
105: "socppc", "solbourne", "sparc", "sparc64",
106: "vax", "zaurus",
107: "amiga", "arc", "arm32", "atari",
108: "beagle", "cats", "hp300", "mac68k",
109: "mvme68k", "mvme88k", "mvmeppc", "palm",
110: "pc532", "pegasos", "pmax", "powerpc",
111: "sun3", "wgrisc", "x68k"
112: };
113: static const int arch_MAX = sizeof(arch_names) / sizeof(char *);
114:
1.1 schwarze 115: /*
116: * Print a character, escaping HTML along the way.
117: * This will pass non-ASCII straight to output: be warned!
118: */
119: static void
120: html_putchar(char c)
121: {
122:
123: switch (c) {
124: case ('"'):
125: printf(""e;");
126: break;
127: case ('&'):
128: printf("&");
129: break;
130: case ('>'):
131: printf(">");
132: break;
133: case ('<'):
134: printf("<");
135: break;
136: default:
137: putchar((unsigned char)c);
138: break;
139: }
140: }
141:
142: static void
143: http_printquery(const struct req *req)
144: {
145:
146: if (NULL != req->q.manpath) {
147: printf("&manpath=");
148: http_print(req->q.manpath);
149: }
150: if (NULL != req->q.sec) {
151: printf("&sec=");
152: http_print(req->q.sec);
153: }
154: if (NULL != req->q.arch) {
155: printf("&arch=");
156: http_print(req->q.arch);
157: }
158: if (NULL != req->q.expr) {
1.5 schwarze 159: printf("&query=");
160: http_print(req->q.expr);
1.1 schwarze 161: }
1.5 schwarze 162: if (0 == req->q.equal)
163: printf("&apropos=1");
1.1 schwarze 164: }
165:
166: static void
167: html_printquery(const struct req *req)
168: {
169:
170: if (NULL != req->q.manpath) {
171: printf("&manpath=");
172: html_print(req->q.manpath);
173: }
174: if (NULL != req->q.sec) {
175: printf("&sec=");
176: html_print(req->q.sec);
177: }
178: if (NULL != req->q.arch) {
179: printf("&arch=");
180: html_print(req->q.arch);
181: }
182: if (NULL != req->q.expr) {
1.5 schwarze 183: printf("&query=");
1.3 tedu 184: html_print(req->q.expr);
1.1 schwarze 185: }
1.5 schwarze 186: if (0 == req->q.equal)
187: printf("&apropos=1");
1.1 schwarze 188: }
189:
190: static void
191: http_print(const char *p)
192: {
193:
194: if (NULL == p)
195: return;
196: while ('\0' != *p)
197: http_putchar(*p++);
198: }
199:
200: /*
201: * Call through to html_putchar().
202: * Accepts NULL strings.
203: */
204: static void
205: html_print(const char *p)
206: {
207:
208: if (NULL == p)
209: return;
210: while ('\0' != *p)
211: html_putchar(*p++);
212: }
213:
214: /*
215: * Parse out key-value pairs from an HTTP request variable.
216: * This can be either a cookie or a POST/GET string, although man.cgi
217: * uses only GET for simplicity.
218: */
219: static void
220: http_parse(struct req *req, char *p)
221: {
222: char *key, *val;
223:
224: memset(&req->q, 0, sizeof(struct query));
225: req->q.manpath = req->p[0];
1.5 schwarze 226: req->q.equal = 1;
1.1 schwarze 227:
228: while ('\0' != *p) {
229: key = p;
230: val = NULL;
231:
232: p += (int)strcspn(p, ";&");
233: if ('\0' != *p)
234: *p++ = '\0';
235: if (NULL != (val = strchr(key, '=')))
236: *val++ = '\0';
237:
238: if ('\0' == *key || NULL == val || '\0' == *val)
239: continue;
240:
241: /* Just abort handling. */
242:
243: if ( ! http_decode(key))
244: break;
245: if (NULL != val && ! http_decode(val))
246: break;
247:
1.5 schwarze 248: if (0 == strcmp(key, "query"))
1.1 schwarze 249: req->q.expr = val;
250: else if (0 == strcmp(key, "manpath"))
251: req->q.manpath = val;
252: else if (0 == strcmp(key, "apropos"))
1.5 schwarze 253: req->q.equal = !strcmp(val, "0");
254: else if (0 == strcmp(key, "sec") ||
255: 0 == strcmp(key, "sektion")) {
256: if (strcmp(val, "0"))
257: req->q.sec = val;
258: } else if (0 == strcmp(key, "arch")) {
259: if (strcmp(val, "default"))
260: req->q.arch = val;
261: }
1.1 schwarze 262: }
263: }
264:
265: static void
266: http_putchar(char c)
267: {
268:
269: if (isalnum((unsigned char)c)) {
270: putchar((unsigned char)c);
271: return;
272: } else if (' ' == c) {
273: putchar('+');
274: return;
275: }
276: printf("%%%.2x", c);
277: }
278:
279: /*
280: * HTTP-decode a string. The standard explanation is that this turns
281: * "%4e+foo" into "n foo" in the regular way. This is done in-place
282: * over the allocated string.
283: */
284: static int
285: http_decode(char *p)
286: {
287: char hex[3];
1.3 tedu 288: char *q;
1.1 schwarze 289: int c;
290:
291: hex[2] = '\0';
292:
1.3 tedu 293: q = p;
294: for ( ; '\0' != *p; p++, q++) {
1.1 schwarze 295: if ('%' == *p) {
296: if ('\0' == (hex[0] = *(p + 1)))
297: return(0);
298: if ('\0' == (hex[1] = *(p + 2)))
299: return(0);
300: if (1 != sscanf(hex, "%x", &c))
301: return(0);
302: if ('\0' == c)
303: return(0);
304:
1.3 tedu 305: *q = (char)c;
306: p += 2;
1.1 schwarze 307: } else
1.3 tedu 308: *q = '+' == *p ? ' ' : *p;
1.1 schwarze 309: }
310:
1.3 tedu 311: *q = '\0';
1.1 schwarze 312: return(1);
313: }
314:
315: static void
316: resp_begin_http(int code, const char *msg)
317: {
318:
319: if (200 != code)
1.2 tedu 320: printf("Status: %d %s\r\n", code, msg);
1.1 schwarze 321:
1.2 tedu 322: printf("Content-Type: text/html; charset=utf-8\r\n"
323: "Cache-Control: no-cache\r\n"
324: "Pragma: no-cache\r\n"
325: "\r\n");
1.1 schwarze 326:
327: fflush(stdout);
328: }
329:
330: static void
331: resp_begin_html(int code, const char *msg)
332: {
333:
334: resp_begin_http(code, msg);
335:
336: printf("<!DOCTYPE HTML PUBLIC "
337: " \"-//W3C//DTD HTML 4.01//EN\""
338: " \"http://www.w3.org/TR/html4/strict.dtd\">\n"
339: "<HTML>\n"
340: "<HEAD>\n"
341: "<META HTTP-EQUIV=\"Content-Type\""
342: " CONTENT=\"text/html; charset=utf-8\">\n"
343: "<LINK REL=\"stylesheet\" HREF=\"%s/man-cgi.css\""
344: " TYPE=\"text/css\" media=\"all\">\n"
345: "<LINK REL=\"stylesheet\" HREF=\"%s/man.css\""
346: " TYPE=\"text/css\" media=\"all\">\n"
1.7 schwarze 347: "<TITLE>%s</TITLE>\n"
1.1 schwarze 348: "</HEAD>\n"
349: "<BODY>\n"
350: "<!-- Begin page content. //-->\n",
1.7 schwarze 351: CSS_DIR, CSS_DIR, CUSTOMIZE_TITLE);
1.1 schwarze 352: }
353:
354: static void
355: resp_end_html(void)
356: {
357:
358: puts("</BODY>\n"
359: "</HTML>");
360: }
361:
362: static void
363: resp_searchform(const struct req *req)
364: {
365: int i;
366:
1.7 schwarze 367: puts(CUSTOMIZE_BEGIN);
1.1 schwarze 368: puts("<!-- Begin search form. //-->");
369: printf("<DIV ID=\"mancgi\">\n"
1.6 schwarze 370: "<FORM ACTION=\"%s\" METHOD=\"get\">\n"
1.1 schwarze 371: "<FIELDSET>\n"
1.8 schwarze 372: "<LEGEND>Manual Page Search Parameters</LEGEND>\n",
1.1 schwarze 373: scriptname);
1.8 schwarze 374:
375: /* Write query input box. */
376:
377: printf( "<TABLE><TR><TD>\n"
378: "<INPUT TYPE=\"text\" NAME=\"query\" VALUE=\"");
379: if (NULL != req->q.expr)
380: html_print(req->q.expr);
381: puts("\" SIZE=\"40\">");
382:
383: /* Write submission and reset buttons. */
384:
385: printf( "<INPUT TYPE=\"submit\" VALUE=\"Submit\">\n"
386: "<INPUT TYPE=\"reset\" VALUE=\"Reset\">\n");
387:
388: /* Write show radio button */
389:
390: printf( "</TD><TD>\n"
391: "<INPUT TYPE=\"radio\" ");
1.5 schwarze 392: if (req->q.equal)
1.8 schwarze 393: printf("CHECKED ");
394: printf( "NAME=\"apropos\" ID=\"show\" VALUE=\"0\">\n"
395: "<LABEL FOR=\"show\">Show named manual page</LABEL>\n");
396:
397: /* Write section selector. */
398:
399: printf( "</TD></TR><TR><TD>\n"
400: "<SELECT NAME=\"sec\">");
401: for (i = 0; i < sec_MAX; i++) {
402: printf("<OPTION VALUE=\"%s\"", sec_numbers[i]);
403: if (NULL != req->q.sec &&
404: 0 == strcmp(sec_numbers[i], req->q.sec))
405: printf(" SELECTED");
406: printf(">%s</OPTION>\n", sec_names[i]);
407: }
408: puts("</SELECT>");
409:
410: /* Write architecture selector. */
411:
412: puts("<SELECT NAME=\"arch\">");
413: for (i = 0; i < arch_MAX; i++) {
414: printf("<OPTION VALUE=\"%s\"", arch_names[i]);
415: if (NULL != req->q.arch &&
416: 0 == strcmp(arch_names[i], req->q.arch))
417: printf(" SELECTED");
418: printf(">%s</OPTION>\n", arch_names[i]);
419: }
420: puts("</SELECT>");
421:
422: /* Write manpath selector. */
423:
1.1 schwarze 424: if (req->psz > 1) {
1.8 schwarze 425: puts("<SELECT NAME=\"manpath\">");
1.1 schwarze 426: for (i = 0; i < (int)req->psz; i++) {
427: printf("<OPTION ");
428: if (NULL == req->q.manpath ? 0 == i :
429: 0 == strcmp(req->q.manpath, req->p[i]))
1.8 schwarze 430: printf("SELECTED ");
1.1 schwarze 431: printf("VALUE=\"");
432: html_print(req->p[i]);
433: printf("\">");
434: html_print(req->p[i]);
435: puts("</OPTION>");
436: }
437: puts("</SELECT>");
438: }
1.8 schwarze 439:
440: /* Write search radio button */
441:
442: printf( "</TD><TD>\n"
443: "<INPUT TYPE=\"radio\" ");
444: if (0 == req->q.equal)
445: printf("CHECKED ");
446: printf( "NAME=\"apropos\" ID=\"search\" VALUE=\"1\">\n"
447: "<LABEL FOR=\"search\">Search with apropos query</LABEL>\n");
448:
449: puts("</TD></TR></TABLE>\n"
1.1 schwarze 450: "</FIELDSET>\n"
451: "</FORM>\n"
452: "</DIV>");
453: puts("<!-- End search form. //-->");
454: }
455:
456: static void
457: resp_index(const struct req *req)
458: {
459:
460: resp_begin_html(200, NULL);
461: resp_searchform(req);
1.4 schwarze 462: printf("<P>\n"
463: "This web interface is documented in the "
1.9 schwarze 464: "<A HREF=\"%s/mandoc/man8/man.cgi.8\">man.cgi</A> "
465: "manual, and the "
466: "<A HREF=\"%s/mandoc/man1/apropos.1\">apropos</A> "
467: "manual explains the query syntax.\n"
1.4 schwarze 468: "</P>\n",
469: scriptname, scriptname);
1.1 schwarze 470: resp_end_html();
471: }
472:
473: static void
474: resp_noresult(const struct req *req, const char *msg)
475: {
476: resp_begin_html(200, NULL);
477: resp_searchform(req);
478: puts("<P>");
479: puts(msg);
480: puts("</P>");
481: resp_end_html();
482: }
483:
484: static void
485: resp_error_badrequest(const char *msg)
486: {
487:
488: resp_begin_html(400, "Bad Request");
489: puts("<H1>Bad Request</H1>\n"
490: "<P>\n");
491: puts(msg);
492: printf("Try again from the\n"
493: "<A HREF=\"%s\">main page</A>.\n"
494: "</P>", scriptname);
495: resp_end_html();
496: }
497:
498: static void
499: resp_error_internal(void)
500: {
501: resp_begin_html(500, "Internal Server Error");
502: puts("<P>Internal Server Error</P>");
503: resp_end_html();
504: }
505:
506: static void
507: resp_search(const struct req *req, struct manpage *r, size_t sz)
508: {
1.10 schwarze 509: size_t i, iuse, isec;
510: int prio, priouse;
511: char sec;
1.1 schwarze 512:
513: if (1 == sz) {
514: /*
515: * If we have just one result, then jump there now
516: * without any delay.
517: */
1.2 tedu 518: printf("Status: 303 See Other\r\n");
1.6 schwarze 519: printf("Location: http://%s%s/%s/%s?",
1.1 schwarze 520: httphost, scriptname, req->q.manpath, r[0].file);
521: http_printquery(req);
1.2 tedu 522: printf("\r\n"
523: "Content-Type: text/html; charset=utf-8\r\n"
524: "\r\n");
1.1 schwarze 525: return;
526: }
527:
528: qsort(r, sz, sizeof(struct manpage), cmp);
529:
530: resp_begin_html(200, NULL);
531: resp_searchform(req);
532: puts("<DIV CLASS=\"results\">");
533: puts("<TABLE>");
534:
535: for (i = 0; i < sz; i++) {
536: printf("<TR>\n"
537: "<TD CLASS=\"title\">\n"
1.6 schwarze 538: "<A HREF=\"%s/%s/%s?",
1.1 schwarze 539: scriptname, req->q.manpath, r[i].file);
540: html_printquery(req);
541: printf("\">");
542: html_print(r[i].names);
543: printf("</A>\n"
544: "</TD>\n"
545: "<TD CLASS=\"desc\">");
546: html_print(r[i].output);
547: puts("</TD>\n"
548: "</TR>");
549: }
550:
551: puts("</TABLE>\n"
552: "</DIV>");
1.10 schwarze 553:
554: /*
555: * In man(1) mode, show one of the pages
556: * even if more than one is found.
557: */
558:
559: if (req->q.equal) {
560: puts("<HR>");
561: iuse = 0;
562: priouse = 10;
563: for (i = 0; i < sz; i++) {
564: isec = strcspn(r[i].file, "123456789");
565: sec = r[i].file[isec];
566: if ('\0' == sec)
567: continue;
568: prio = sec_prios[sec - '1'];
569: if (prio >= priouse)
570: continue;
571: priouse = prio;
572: iuse = i;
573: }
574: resp_show(req, r[iuse].file);
575: }
576:
1.1 schwarze 577: resp_end_html();
578: }
579:
580: static void
581: catman(const struct req *req, const char *file)
582: {
583: FILE *f;
584: size_t len;
585: int i;
586: char *p;
587: int italic, bold;
588:
589: if (NULL == (f = fopen(file, "r"))) {
1.10 schwarze 590: puts("<P>You specified an invalid manual file.</P>");
1.1 schwarze 591: return;
592: }
593:
594: puts("<DIV CLASS=\"catman\">\n"
595: "<PRE>");
596:
597: while (NULL != (p = fgetln(f, &len))) {
598: bold = italic = 0;
599: for (i = 0; i < (int)len - 1; i++) {
600: /*
601: * This means that the catpage is out of state.
602: * Ignore it and keep going (although the
603: * catpage is bogus).
604: */
605:
606: if ('\b' == p[i] || '\n' == p[i])
607: continue;
608:
609: /*
610: * Print a regular character.
611: * Close out any bold/italic scopes.
612: * If we're in back-space mode, make sure we'll
613: * have something to enter when we backspace.
614: */
615:
616: if ('\b' != p[i + 1]) {
617: if (italic)
618: printf("</I>");
619: if (bold)
620: printf("</B>");
621: italic = bold = 0;
622: html_putchar(p[i]);
623: continue;
624: } else if (i + 2 >= (int)len)
625: continue;
626:
627: /* Italic mode. */
628:
629: if ('_' == p[i]) {
630: if (bold)
631: printf("</B>");
632: if ( ! italic)
633: printf("<I>");
634: bold = 0;
635: italic = 1;
636: i += 2;
637: html_putchar(p[i]);
638: continue;
639: }
640:
641: /*
642: * Handle funny behaviour troff-isms.
643: * These grok'd from the original man2html.c.
644: */
645:
646: if (('+' == p[i] && 'o' == p[i + 2]) ||
647: ('o' == p[i] && '+' == p[i + 2]) ||
648: ('|' == p[i] && '=' == p[i + 2]) ||
649: ('=' == p[i] && '|' == p[i + 2]) ||
650: ('*' == p[i] && '=' == p[i + 2]) ||
651: ('=' == p[i] && '*' == p[i + 2]) ||
652: ('*' == p[i] && '|' == p[i + 2]) ||
653: ('|' == p[i] && '*' == p[i + 2])) {
654: if (italic)
655: printf("</I>");
656: if (bold)
657: printf("</B>");
658: italic = bold = 0;
659: putchar('*');
660: i += 2;
661: continue;
662: } else if (('|' == p[i] && '-' == p[i + 2]) ||
663: ('-' == p[i] && '|' == p[i + 1]) ||
664: ('+' == p[i] && '-' == p[i + 1]) ||
665: ('-' == p[i] && '+' == p[i + 1]) ||
666: ('+' == p[i] && '|' == p[i + 1]) ||
667: ('|' == p[i] && '+' == p[i + 1])) {
668: if (italic)
669: printf("</I>");
670: if (bold)
671: printf("</B>");
672: italic = bold = 0;
673: putchar('+');
674: i += 2;
675: continue;
676: }
677:
678: /* Bold mode. */
679:
680: if (italic)
681: printf("</I>");
682: if ( ! bold)
683: printf("<B>");
684: bold = 1;
685: italic = 0;
686: i += 2;
687: html_putchar(p[i]);
688: }
689:
690: /*
691: * Clean up the last character.
692: * We can get to a newline; don't print that.
693: */
694:
695: if (italic)
696: printf("</I>");
697: if (bold)
698: printf("</B>");
699:
700: if (i == (int)len - 1 && '\n' != p[i])
701: html_putchar(p[i]);
702:
703: putchar('\n');
704: }
705:
706: puts("</PRE>\n"
1.10 schwarze 707: "</DIV>");
1.1 schwarze 708:
709: fclose(f);
710: }
711:
712: static void
713: format(const struct req *req, const char *file)
714: {
715: struct mparse *mp;
716: int fd;
717: struct mdoc *mdoc;
718: struct man *man;
719: void *vp;
720: enum mandoclevel rc;
721: char opts[PATH_MAX + 128];
722:
723: if (-1 == (fd = open(file, O_RDONLY, 0))) {
1.10 schwarze 724: puts("<P>You specified an invalid manual file.</P>");
1.1 schwarze 725: return;
726: }
727:
728: mp = mparse_alloc(MPARSE_SO, MANDOCLEVEL_FATAL, NULL,
729: req->q.manpath);
730: rc = mparse_readfd(mp, fd, file);
731: close(fd);
732:
733: if (rc >= MANDOCLEVEL_FATAL) {
734: fprintf(stderr, "fatal mandoc error: %s/%s\n",
735: req->q.manpath, file);
736: resp_error_internal();
737: return;
738: }
739:
740: snprintf(opts, sizeof(opts),
1.6 schwarze 741: "fragment,man=%s?query=%%N&sec=%%S",
1.1 schwarze 742: scriptname);
743:
744: mparse_result(mp, &mdoc, &man, NULL);
745: if (NULL == man && NULL == mdoc) {
746: fprintf(stderr, "fatal mandoc error: %s/%s\n",
747: req->q.manpath, file);
748: resp_error_internal();
749: mparse_free(mp);
750: return;
751: }
752:
753: vp = html_alloc(opts);
754:
755: if (NULL != mdoc)
756: html_mdoc(vp, mdoc);
757: else
758: html_man(vp, man);
759:
760: html_free(vp);
761: mparse_free(mp);
762: }
763:
764: static void
1.10 schwarze 765: resp_show(const struct req *req, const char *file)
766: {
1.11 ! schwarze 767: if ('.' == file[0] || '/' == file[1])
! 768: file += 2;
1.10 schwarze 769:
770: if ('c' == *file)
771: catman(req, file);
772: else
773: format(req, file);
774: }
775:
776: static void
1.6 schwarze 777: pg_show(const struct req *req, const char *path)
1.1 schwarze 778: {
779: char *sub;
780:
781: if (NULL == path || NULL == (sub = strchr(path, '/'))) {
782: resp_error_badrequest(
783: "You did not specify a page to show.");
784: return;
785: }
786: *sub++ = '\0';
787:
788: /*
789: * Begin by chdir()ing into the manpath.
790: * This way we can pick up the database files, which are
791: * relative to the manpath root.
792: */
793:
794: if (-1 == chdir(path)) {
795: resp_error_badrequest(
796: "You specified an invalid manpath.");
797: return;
798: }
799:
1.10 schwarze 800: resp_begin_html(200, NULL);
801: resp_searchform(req);
802: resp_show(req, sub);
803: resp_end_html();
1.1 schwarze 804: }
805:
806: static void
1.6 schwarze 807: pg_search(const struct req *req)
1.1 schwarze 808: {
809: struct mansearch search;
810: struct manpaths paths;
811: struct manpage *res;
812: char **cp;
813: const char *ep, *start;
814: size_t ressz;
815: int i, sz;
816:
817: /*
818: * Begin by chdir()ing into the root of the manpath.
819: * This way we can pick up the database files, which are
820: * relative to the manpath root.
821: */
822:
823: if (-1 == (chdir(req->q.manpath))) {
824: resp_error_badrequest(
825: "You specified an invalid manpath.");
826: return;
827: }
828:
829: search.arch = req->q.arch;
830: search.sec = req->q.sec;
1.5 schwarze 831: search.deftype = req->q.equal ? TYPE_Nm : (TYPE_Nm | TYPE_Nd);
832: search.flags = req->q.equal ? MANSEARCH_MAN : 0;
1.1 schwarze 833:
834: paths.sz = 1;
835: paths.paths = mandoc_malloc(sizeof(char *));
836: paths.paths[0] = mandoc_strdup(".");
837:
838: /*
839: * Poor man's tokenisation: just break apart by spaces.
840: * Yes, this is half-ass. But it works for now.
841: */
842:
843: ep = req->q.expr;
844: while (ep && isspace((unsigned char)*ep))
845: ep++;
846:
847: sz = 0;
848: cp = NULL;
849: while (ep && '\0' != *ep) {
850: cp = mandoc_reallocarray(cp, sz + 1, sizeof(char *));
851: start = ep;
852: while ('\0' != *ep && ! isspace((unsigned char)*ep))
853: ep++;
854: cp[sz] = mandoc_malloc((ep - start) + 1);
855: memcpy(cp[sz], start, ep - start);
856: cp[sz++][ep - start] = '\0';
857: while (isspace((unsigned char)*ep))
858: ep++;
859: }
860:
861: if (0 == mansearch(&search, &paths, sz, cp, "Nd", &res, &ressz))
862: resp_noresult(req, "You entered an invalid query.");
863: else if (0 == ressz)
864: resp_noresult(req, "No results found.");
865: else
866: resp_search(req, res, ressz);
867:
868: for (i = 0; i < sz; i++)
869: free(cp[i]);
870: free(cp);
871:
872: for (i = 0; i < (int)ressz; i++) {
873: free(res[i].file);
874: free(res[i].names);
875: free(res[i].output);
876: }
877: free(res);
878:
879: free(paths.paths[0]);
880: free(paths.paths);
881: }
882:
883: int
884: main(void)
885: {
1.6 schwarze 886: struct req req;
887: const char *path;
888: char *querystring;
1.1 schwarze 889: int i;
890:
891: /* Scan our run-time environment. */
892:
893: if (NULL == (scriptname = getenv("SCRIPT_NAME")))
894: scriptname = "";
895:
896: if (NULL == (httphost = getenv("HTTP_HOST")))
897: httphost = "localhost";
898:
899: /*
1.7 schwarze 900: * First we change directory into the MAN_DIR so that
1.1 schwarze 901: * subsequent scanning for manpath directories is rooted
902: * relative to the same position.
903: */
904:
1.7 schwarze 905: if (-1 == chdir(MAN_DIR)) {
1.1 schwarze 906: fprintf(stderr, "MAN_DIR: %s: %s\n",
1.7 schwarze 907: MAN_DIR, strerror(errno));
1.1 schwarze 908: resp_error_internal();
909: return(EXIT_FAILURE);
910: }
911:
912: memset(&req, 0, sizeof(struct req));
913: pathgen(&req);
914:
915: /* Next parse out the query string. */
916:
917: if (NULL != (querystring = getenv("QUERY_STRING")))
918: http_parse(&req, querystring);
919:
1.6 schwarze 920: /* Dispatch to the three different pages. */
1.1 schwarze 921:
1.6 schwarze 922: path = getenv("PATH_INFO");
923: if (NULL == path)
924: path = "";
925: else if ('/' == *path)
926: path++;
927:
928: if ('\0' != *path)
929: pg_show(&req, path);
930: else if (NULL != req.q.expr)
931: pg_search(&req);
932: else
933: resp_index(&req);
1.1 schwarze 934:
935: for (i = 0; i < (int)req.psz; i++)
936: free(req.p[i]);
937: free(req.p);
938: return(EXIT_SUCCESS);
939: }
940:
941: static int
942: cmp(const void *p1, const void *p2)
943: {
944:
945: return(strcasecmp(((const struct manpage *)p1)->names,
946: ((const struct manpage *)p2)->names));
947: }
948:
949: /*
950: * Scan for indexable paths.
951: */
952: static void
953: pathgen(struct req *req)
954: {
955: FILE *fp;
956: char *dp;
957: size_t dpsz;
958:
959: if (NULL == (fp = fopen("manpath.conf", "r")))
960: return;
961:
962: while (NULL != (dp = fgetln(fp, &dpsz))) {
963: if ('\n' == dp[dpsz - 1])
964: dpsz--;
965: req->p = mandoc_realloc(req->p,
966: (req->psz + 1) * sizeof(char *));
967: req->p[req->psz++] = mandoc_strndup(dp, dpsz);
968: }
969: }