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1.16 ! schwarze 1: /* $Id: cgi.c,v 1.15 2014/07/18 19:02:07 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 *);
1.12 schwarze 63: static void pg_error_badrequest(const char *);
64: static void pg_error_internal(void);
65: static void pg_index(const struct req *);
66: static void pg_noresult(const struct req *, const char *);
1.6 schwarze 67: static void pg_search(const struct req *);
1.12 schwarze 68: static void pg_searchres(const struct req *,
69: struct manpage *, size_t);
1.6 schwarze 70: static void pg_show(const struct req *, const char *);
1.1 schwarze 71: static void resp_begin_html(int, const char *);
72: static void resp_begin_http(int, const char *);
73: static void resp_end_html(void);
74: static void resp_searchform(const struct req *);
1.10 schwarze 75: static void resp_show(const struct req *, const char *);
1.1 schwarze 76:
77: static const char *scriptname; /* CGI script name */
78:
1.10 schwarze 79: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.8 schwarze 80: static const char *const sec_numbers[] = {
81: "0", "1", "2", "3", "3p", "4", "5", "6", "7", "8", "9"
82: };
83: static const char *const sec_names[] = {
84: "All Sections",
85: "1 - General Commands",
86: "2 - System Calls",
87: "3 - Subroutines",
88: "3p - Perl Subroutines",
89: "4 - Special Files",
90: "5 - File Formats",
91: "6 - Games",
92: "7 - Macros and Conventions",
93: "8 - Maintenance Commands",
94: "9 - Kernel Interface"
95: };
96: static const int sec_MAX = sizeof(sec_names) / sizeof(char *);
97:
98: static const char *const arch_names[] = {
99: "amd64", "alpha", "armish", "armv7",
100: "aviion", "hppa", "hppa64", "i386",
101: "ia64", "landisk", "loongson", "luna88k",
102: "macppc", "mips64", "octeon", "sgi",
103: "socppc", "solbourne", "sparc", "sparc64",
104: "vax", "zaurus",
105: "amiga", "arc", "arm32", "atari",
106: "beagle", "cats", "hp300", "mac68k",
107: "mvme68k", "mvme88k", "mvmeppc", "palm",
108: "pc532", "pegasos", "pmax", "powerpc",
109: "sun3", "wgrisc", "x68k"
110: };
111: static const int arch_MAX = sizeof(arch_names) / sizeof(char *);
112:
1.1 schwarze 113: /*
114: * Print a character, escaping HTML along the way.
115: * This will pass non-ASCII straight to output: be warned!
116: */
117: static void
118: html_putchar(char c)
119: {
120:
121: switch (c) {
122: case ('"'):
123: printf(""e;");
124: break;
125: case ('&'):
126: printf("&");
127: break;
128: case ('>'):
129: printf(">");
130: break;
131: case ('<'):
132: printf("<");
133: break;
134: default:
135: putchar((unsigned char)c);
136: break;
137: }
138: }
139:
140: static void
141: http_printquery(const struct req *req)
142: {
143:
144: if (NULL != req->q.manpath) {
145: printf("&manpath=");
146: http_print(req->q.manpath);
147: }
148: if (NULL != req->q.sec) {
149: printf("&sec=");
150: http_print(req->q.sec);
151: }
152: if (NULL != req->q.arch) {
153: printf("&arch=");
154: http_print(req->q.arch);
155: }
156: if (NULL != req->q.expr) {
1.5 schwarze 157: printf("&query=");
158: http_print(req->q.expr);
1.1 schwarze 159: }
1.5 schwarze 160: if (0 == req->q.equal)
161: printf("&apropos=1");
1.1 schwarze 162: }
163:
164: static void
165: html_printquery(const struct req *req)
166: {
167:
168: if (NULL != req->q.manpath) {
169: printf("&manpath=");
170: html_print(req->q.manpath);
171: }
172: if (NULL != req->q.sec) {
173: printf("&sec=");
174: html_print(req->q.sec);
175: }
176: if (NULL != req->q.arch) {
177: printf("&arch=");
178: html_print(req->q.arch);
179: }
180: if (NULL != req->q.expr) {
1.5 schwarze 181: printf("&query=");
1.3 tedu 182: html_print(req->q.expr);
1.1 schwarze 183: }
1.5 schwarze 184: if (0 == req->q.equal)
185: printf("&apropos=1");
1.1 schwarze 186: }
187:
188: static void
189: http_print(const char *p)
190: {
191:
192: if (NULL == p)
193: return;
194: while ('\0' != *p)
195: http_putchar(*p++);
196: }
197:
198: /*
199: * Call through to html_putchar().
200: * Accepts NULL strings.
201: */
202: static void
203: html_print(const char *p)
204: {
205:
206: if (NULL == p)
207: return;
208: while ('\0' != *p)
209: html_putchar(*p++);
210: }
211:
212: /*
213: * Parse out key-value pairs from an HTTP request variable.
214: * This can be either a cookie or a POST/GET string, although man.cgi
215: * uses only GET for simplicity.
216: */
217: static void
218: http_parse(struct req *req, char *p)
219: {
220: char *key, *val;
221:
222: memset(&req->q, 0, sizeof(struct query));
223: req->q.manpath = req->p[0];
1.5 schwarze 224: req->q.equal = 1;
1.1 schwarze 225:
226: while ('\0' != *p) {
227: key = p;
228: val = NULL;
229:
230: p += (int)strcspn(p, ";&");
231: if ('\0' != *p)
232: *p++ = '\0';
233: if (NULL != (val = strchr(key, '=')))
234: *val++ = '\0';
235:
236: if ('\0' == *key || NULL == val || '\0' == *val)
237: continue;
238:
239: /* Just abort handling. */
240:
241: if ( ! http_decode(key))
242: break;
243: if (NULL != val && ! http_decode(val))
244: break;
245:
1.5 schwarze 246: if (0 == strcmp(key, "query"))
1.1 schwarze 247: req->q.expr = val;
1.13 schwarze 248: else if (0 == strcmp(key, "manpath")) {
249: #ifdef COMPAT_OLDURI
250: if (0 == strncmp(val, "OpenBSD ", 8)) {
251: val[7] = '-';
252: if ('C' == val[8])
253: val[8] = 'c';
254: }
255: #endif
1.1 schwarze 256: req->q.manpath = val;
1.13 schwarze 257: } else if (0 == strcmp(key, "apropos"))
1.5 schwarze 258: req->q.equal = !strcmp(val, "0");
1.13 schwarze 259: else if (0 == strcmp(key, "sec")) {
1.5 schwarze 260: if (strcmp(val, "0"))
261: req->q.sec = val;
1.13 schwarze 262: #ifdef COMPAT_OLDURI
263: } else if (0 == strcmp(key, "sektion")) {
264: if (strcmp(val, "0"))
265: req->q.sec = val;
266: #endif
1.5 schwarze 267: } else if (0 == strcmp(key, "arch")) {
268: if (strcmp(val, "default"))
269: req->q.arch = val;
270: }
1.1 schwarze 271: }
272: }
273:
274: static void
275: http_putchar(char c)
276: {
277:
278: if (isalnum((unsigned char)c)) {
279: putchar((unsigned char)c);
280: return;
281: } else if (' ' == c) {
282: putchar('+');
283: return;
284: }
285: printf("%%%.2x", c);
286: }
287:
288: /*
289: * HTTP-decode a string. The standard explanation is that this turns
290: * "%4e+foo" into "n foo" in the regular way. This is done in-place
291: * over the allocated string.
292: */
293: static int
294: http_decode(char *p)
295: {
296: char hex[3];
1.3 tedu 297: char *q;
1.1 schwarze 298: int c;
299:
300: hex[2] = '\0';
301:
1.3 tedu 302: q = p;
303: for ( ; '\0' != *p; p++, q++) {
1.1 schwarze 304: if ('%' == *p) {
305: if ('\0' == (hex[0] = *(p + 1)))
306: return(0);
307: if ('\0' == (hex[1] = *(p + 2)))
308: return(0);
309: if (1 != sscanf(hex, "%x", &c))
310: return(0);
311: if ('\0' == c)
312: return(0);
313:
1.3 tedu 314: *q = (char)c;
315: p += 2;
1.1 schwarze 316: } else
1.3 tedu 317: *q = '+' == *p ? ' ' : *p;
1.1 schwarze 318: }
319:
1.3 tedu 320: *q = '\0';
1.1 schwarze 321: return(1);
322: }
323:
324: static void
325: resp_begin_http(int code, const char *msg)
326: {
327:
328: if (200 != code)
1.2 tedu 329: printf("Status: %d %s\r\n", code, msg);
1.1 schwarze 330:
1.2 tedu 331: printf("Content-Type: text/html; charset=utf-8\r\n"
332: "Cache-Control: no-cache\r\n"
333: "Pragma: no-cache\r\n"
334: "\r\n");
1.1 schwarze 335:
336: fflush(stdout);
337: }
338:
339: static void
340: resp_begin_html(int code, const char *msg)
341: {
342:
343: resp_begin_http(code, msg);
344:
345: printf("<!DOCTYPE HTML PUBLIC "
346: " \"-//W3C//DTD HTML 4.01//EN\""
347: " \"http://www.w3.org/TR/html4/strict.dtd\">\n"
348: "<HTML>\n"
349: "<HEAD>\n"
350: "<META HTTP-EQUIV=\"Content-Type\""
351: " CONTENT=\"text/html; charset=utf-8\">\n"
352: "<LINK REL=\"stylesheet\" HREF=\"%s/man-cgi.css\""
353: " TYPE=\"text/css\" media=\"all\">\n"
354: "<LINK REL=\"stylesheet\" HREF=\"%s/man.css\""
355: " TYPE=\"text/css\" media=\"all\">\n"
1.7 schwarze 356: "<TITLE>%s</TITLE>\n"
1.1 schwarze 357: "</HEAD>\n"
358: "<BODY>\n"
359: "<!-- Begin page content. //-->\n",
1.7 schwarze 360: CSS_DIR, CSS_DIR, CUSTOMIZE_TITLE);
1.1 schwarze 361: }
362:
363: static void
364: resp_end_html(void)
365: {
366:
367: puts("</BODY>\n"
368: "</HTML>");
369: }
370:
371: static void
372: resp_searchform(const struct req *req)
373: {
374: int i;
375:
1.7 schwarze 376: puts(CUSTOMIZE_BEGIN);
1.1 schwarze 377: puts("<!-- Begin search form. //-->");
378: printf("<DIV ID=\"mancgi\">\n"
1.6 schwarze 379: "<FORM ACTION=\"%s\" METHOD=\"get\">\n"
1.1 schwarze 380: "<FIELDSET>\n"
1.8 schwarze 381: "<LEGEND>Manual Page Search Parameters</LEGEND>\n",
1.1 schwarze 382: scriptname);
1.8 schwarze 383:
384: /* Write query input box. */
385:
386: printf( "<TABLE><TR><TD>\n"
387: "<INPUT TYPE=\"text\" NAME=\"query\" VALUE=\"");
388: if (NULL != req->q.expr)
389: html_print(req->q.expr);
390: puts("\" SIZE=\"40\">");
391:
392: /* Write submission and reset buttons. */
393:
394: printf( "<INPUT TYPE=\"submit\" VALUE=\"Submit\">\n"
395: "<INPUT TYPE=\"reset\" VALUE=\"Reset\">\n");
396:
397: /* Write show radio button */
398:
399: printf( "</TD><TD>\n"
400: "<INPUT TYPE=\"radio\" ");
1.5 schwarze 401: if (req->q.equal)
1.8 schwarze 402: printf("CHECKED ");
403: printf( "NAME=\"apropos\" ID=\"show\" VALUE=\"0\">\n"
404: "<LABEL FOR=\"show\">Show named manual page</LABEL>\n");
405:
406: /* Write section selector. */
407:
408: printf( "</TD></TR><TR><TD>\n"
409: "<SELECT NAME=\"sec\">");
410: for (i = 0; i < sec_MAX; i++) {
411: printf("<OPTION VALUE=\"%s\"", sec_numbers[i]);
412: if (NULL != req->q.sec &&
413: 0 == strcmp(sec_numbers[i], req->q.sec))
414: printf(" SELECTED");
415: printf(">%s</OPTION>\n", sec_names[i]);
416: }
417: puts("</SELECT>");
418:
419: /* Write architecture selector. */
420:
421: puts("<SELECT NAME=\"arch\">");
422: for (i = 0; i < arch_MAX; i++) {
423: printf("<OPTION VALUE=\"%s\"", arch_names[i]);
424: if (NULL != req->q.arch &&
425: 0 == strcmp(arch_names[i], req->q.arch))
426: printf(" SELECTED");
427: printf(">%s</OPTION>\n", arch_names[i]);
428: }
429: puts("</SELECT>");
430:
431: /* Write manpath selector. */
432:
1.1 schwarze 433: if (req->psz > 1) {
1.8 schwarze 434: puts("<SELECT NAME=\"manpath\">");
1.1 schwarze 435: for (i = 0; i < (int)req->psz; i++) {
436: printf("<OPTION ");
437: if (NULL == req->q.manpath ? 0 == i :
438: 0 == strcmp(req->q.manpath, req->p[i]))
1.8 schwarze 439: printf("SELECTED ");
1.1 schwarze 440: printf("VALUE=\"");
441: html_print(req->p[i]);
442: printf("\">");
443: html_print(req->p[i]);
444: puts("</OPTION>");
445: }
446: puts("</SELECT>");
447: }
1.8 schwarze 448:
449: /* Write search radio button */
450:
451: printf( "</TD><TD>\n"
452: "<INPUT TYPE=\"radio\" ");
453: if (0 == req->q.equal)
454: printf("CHECKED ");
455: printf( "NAME=\"apropos\" ID=\"search\" VALUE=\"1\">\n"
456: "<LABEL FOR=\"search\">Search with apropos query</LABEL>\n");
457:
458: puts("</TD></TR></TABLE>\n"
1.1 schwarze 459: "</FIELDSET>\n"
460: "</FORM>\n"
461: "</DIV>");
462: puts("<!-- End search form. //-->");
463: }
464:
1.16 ! schwarze 465: static int
! 466: validate_filename(const char *file)
! 467: {
! 468:
! 469: if ('.' == file[0] && '/' == file[1])
! 470: file += 2;
! 471:
! 472: return ( ! (strstr(file, "../") || strstr(file, "/..") ||
! 473: (strncmp(file, "man", 3) && strncmp(file, "cat", 3))));
! 474: }
! 475:
1.1 schwarze 476: static void
1.12 schwarze 477: pg_index(const struct req *req)
1.1 schwarze 478: {
479:
480: resp_begin_html(200, NULL);
481: resp_searchform(req);
1.4 schwarze 482: printf("<P>\n"
483: "This web interface is documented in the "
1.9 schwarze 484: "<A HREF=\"%s/mandoc/man8/man.cgi.8\">man.cgi</A> "
485: "manual, and the "
486: "<A HREF=\"%s/mandoc/man1/apropos.1\">apropos</A> "
487: "manual explains the query syntax.\n"
1.4 schwarze 488: "</P>\n",
489: scriptname, scriptname);
1.1 schwarze 490: resp_end_html();
491: }
492:
493: static void
1.12 schwarze 494: pg_noresult(const struct req *req, const char *msg)
1.1 schwarze 495: {
496: resp_begin_html(200, NULL);
497: resp_searchform(req);
498: puts("<P>");
499: puts(msg);
500: puts("</P>");
501: resp_end_html();
502: }
503:
504: static void
1.12 schwarze 505: pg_error_badrequest(const char *msg)
1.1 schwarze 506: {
507:
508: resp_begin_html(400, "Bad Request");
509: puts("<H1>Bad Request</H1>\n"
510: "<P>\n");
511: puts(msg);
512: printf("Try again from the\n"
513: "<A HREF=\"%s\">main page</A>.\n"
514: "</P>", scriptname);
515: resp_end_html();
516: }
517:
518: static void
1.12 schwarze 519: pg_error_internal(void)
1.1 schwarze 520: {
521: resp_begin_html(500, "Internal Server Error");
522: puts("<P>Internal Server Error</P>");
523: resp_end_html();
524: }
525:
526: static void
1.12 schwarze 527: pg_searchres(const struct req *req, struct manpage *r, size_t sz)
1.1 schwarze 528: {
1.10 schwarze 529: size_t i, iuse, isec;
530: int prio, priouse;
531: char sec;
1.1 schwarze 532:
1.16 ! schwarze 533: for (i = 0; i < sz; i++) {
! 534: if (validate_filename(r[i].file))
! 535: continue;
! 536: fprintf(stderr, "invalid filename %s in %s database\n",
! 537: r[i].file, req->q.manpath);
! 538: pg_error_internal();
! 539: return;
! 540: }
! 541:
1.1 schwarze 542: if (1 == sz) {
543: /*
544: * If we have just one result, then jump there now
545: * without any delay.
546: */
1.2 tedu 547: printf("Status: 303 See Other\r\n");
1.15 schwarze 548: printf("Location: %s/%s/%s?",
549: scriptname, req->q.manpath, r[0].file);
1.1 schwarze 550: http_printquery(req);
1.2 tedu 551: printf("\r\n"
552: "Content-Type: text/html; charset=utf-8\r\n"
553: "\r\n");
1.1 schwarze 554: return;
555: }
556:
557: qsort(r, sz, sizeof(struct manpage), cmp);
558:
559: resp_begin_html(200, NULL);
560: resp_searchform(req);
561: puts("<DIV CLASS=\"results\">");
562: puts("<TABLE>");
563:
564: for (i = 0; i < sz; i++) {
565: printf("<TR>\n"
566: "<TD CLASS=\"title\">\n"
1.6 schwarze 567: "<A HREF=\"%s/%s/%s?",
1.1 schwarze 568: scriptname, req->q.manpath, r[i].file);
569: html_printquery(req);
570: printf("\">");
571: html_print(r[i].names);
572: printf("</A>\n"
573: "</TD>\n"
574: "<TD CLASS=\"desc\">");
575: html_print(r[i].output);
576: puts("</TD>\n"
577: "</TR>");
578: }
579:
580: puts("</TABLE>\n"
581: "</DIV>");
1.10 schwarze 582:
583: /*
584: * In man(1) mode, show one of the pages
585: * even if more than one is found.
586: */
587:
588: if (req->q.equal) {
589: puts("<HR>");
590: iuse = 0;
591: priouse = 10;
592: for (i = 0; i < sz; i++) {
593: isec = strcspn(r[i].file, "123456789");
594: sec = r[i].file[isec];
595: if ('\0' == sec)
596: continue;
597: prio = sec_prios[sec - '1'];
598: if (prio >= priouse)
599: continue;
600: priouse = prio;
601: iuse = i;
602: }
603: resp_show(req, r[iuse].file);
604: }
605:
1.1 schwarze 606: resp_end_html();
607: }
608:
609: static void
610: catman(const struct req *req, const char *file)
611: {
612: FILE *f;
613: size_t len;
614: int i;
615: char *p;
616: int italic, bold;
617:
618: if (NULL == (f = fopen(file, "r"))) {
1.10 schwarze 619: puts("<P>You specified an invalid manual file.</P>");
1.1 schwarze 620: return;
621: }
622:
623: puts("<DIV CLASS=\"catman\">\n"
624: "<PRE>");
625:
626: while (NULL != (p = fgetln(f, &len))) {
627: bold = italic = 0;
628: for (i = 0; i < (int)len - 1; i++) {
629: /*
630: * This means that the catpage is out of state.
631: * Ignore it and keep going (although the
632: * catpage is bogus).
633: */
634:
635: if ('\b' == p[i] || '\n' == p[i])
636: continue;
637:
638: /*
639: * Print a regular character.
640: * Close out any bold/italic scopes.
641: * If we're in back-space mode, make sure we'll
642: * have something to enter when we backspace.
643: */
644:
645: if ('\b' != p[i + 1]) {
646: if (italic)
647: printf("</I>");
648: if (bold)
649: printf("</B>");
650: italic = bold = 0;
651: html_putchar(p[i]);
652: continue;
653: } else if (i + 2 >= (int)len)
654: continue;
655:
656: /* Italic mode. */
657:
658: if ('_' == p[i]) {
659: if (bold)
660: printf("</B>");
661: if ( ! italic)
662: printf("<I>");
663: bold = 0;
664: italic = 1;
665: i += 2;
666: html_putchar(p[i]);
667: continue;
668: }
669:
670: /*
671: * Handle funny behaviour troff-isms.
672: * These grok'd from the original man2html.c.
673: */
674:
675: if (('+' == p[i] && 'o' == p[i + 2]) ||
676: ('o' == p[i] && '+' == p[i + 2]) ||
677: ('|' == p[i] && '=' == p[i + 2]) ||
678: ('=' == p[i] && '|' == p[i + 2]) ||
679: ('*' == p[i] && '=' == p[i + 2]) ||
680: ('=' == p[i] && '*' == p[i + 2]) ||
681: ('*' == p[i] && '|' == p[i + 2]) ||
682: ('|' == p[i] && '*' == p[i + 2])) {
683: if (italic)
684: printf("</I>");
685: if (bold)
686: printf("</B>");
687: italic = bold = 0;
688: putchar('*');
689: i += 2;
690: continue;
691: } else if (('|' == p[i] && '-' == p[i + 2]) ||
692: ('-' == p[i] && '|' == p[i + 1]) ||
693: ('+' == p[i] && '-' == p[i + 1]) ||
694: ('-' == p[i] && '+' == p[i + 1]) ||
695: ('+' == p[i] && '|' == p[i + 1]) ||
696: ('|' == p[i] && '+' == p[i + 1])) {
697: if (italic)
698: printf("</I>");
699: if (bold)
700: printf("</B>");
701: italic = bold = 0;
702: putchar('+');
703: i += 2;
704: continue;
705: }
706:
707: /* Bold mode. */
708:
709: if (italic)
710: printf("</I>");
711: if ( ! bold)
712: printf("<B>");
713: bold = 1;
714: italic = 0;
715: i += 2;
716: html_putchar(p[i]);
717: }
718:
719: /*
720: * Clean up the last character.
721: * We can get to a newline; don't print that.
722: */
723:
724: if (italic)
725: printf("</I>");
726: if (bold)
727: printf("</B>");
728:
729: if (i == (int)len - 1 && '\n' != p[i])
730: html_putchar(p[i]);
731:
732: putchar('\n');
733: }
734:
735: puts("</PRE>\n"
1.10 schwarze 736: "</DIV>");
1.1 schwarze 737:
738: fclose(f);
739: }
740:
741: static void
742: format(const struct req *req, const char *file)
743: {
744: struct mparse *mp;
745: int fd;
746: struct mdoc *mdoc;
747: struct man *man;
748: void *vp;
749: enum mandoclevel rc;
750: char opts[PATH_MAX + 128];
751:
752: if (-1 == (fd = open(file, O_RDONLY, 0))) {
1.10 schwarze 753: puts("<P>You specified an invalid manual file.</P>");
1.1 schwarze 754: return;
755: }
756:
757: mp = mparse_alloc(MPARSE_SO, MANDOCLEVEL_FATAL, NULL,
758: req->q.manpath);
759: rc = mparse_readfd(mp, fd, file);
760: close(fd);
761:
762: if (rc >= MANDOCLEVEL_FATAL) {
763: fprintf(stderr, "fatal mandoc error: %s/%s\n",
764: req->q.manpath, file);
1.12 schwarze 765: pg_error_internal();
1.1 schwarze 766: return;
767: }
768:
769: snprintf(opts, sizeof(opts),
1.6 schwarze 770: "fragment,man=%s?query=%%N&sec=%%S",
1.1 schwarze 771: scriptname);
772:
773: mparse_result(mp, &mdoc, &man, NULL);
774: if (NULL == man && NULL == mdoc) {
775: fprintf(stderr, "fatal mandoc error: %s/%s\n",
776: req->q.manpath, file);
1.12 schwarze 777: pg_error_internal();
1.1 schwarze 778: mparse_free(mp);
779: return;
780: }
781:
782: vp = html_alloc(opts);
783:
784: if (NULL != mdoc)
785: html_mdoc(vp, mdoc);
786: else
787: html_man(vp, man);
788:
789: html_free(vp);
790: mparse_free(mp);
791: }
792:
793: static void
1.10 schwarze 794: resp_show(const struct req *req, const char *file)
795: {
1.16 ! schwarze 796:
! 797: if ('.' == file[0] && '/' == file[1])
1.11 schwarze 798: file += 2;
1.10 schwarze 799:
800: if ('c' == *file)
801: catman(req, file);
802: else
803: format(req, file);
804: }
805:
806: static void
1.6 schwarze 807: pg_show(const struct req *req, const char *path)
1.1 schwarze 808: {
809: char *sub;
810:
811: if (NULL == path || NULL == (sub = strchr(path, '/'))) {
1.12 schwarze 812: pg_error_badrequest(
1.1 schwarze 813: "You did not specify a page to show.");
814: return;
815: }
816: *sub++ = '\0';
817:
818: /*
819: * Begin by chdir()ing into the manpath.
820: * This way we can pick up the database files, which are
821: * relative to the manpath root.
822: */
823:
824: if (-1 == chdir(path)) {
1.12 schwarze 825: pg_error_badrequest(
1.1 schwarze 826: "You specified an invalid manpath.");
1.16 ! schwarze 827: return;
! 828: }
! 829:
! 830: if ( ! validate_filename(sub)) {
! 831: pg_error_badrequest(
! 832: "You specified an invalid manual file.");
1.1 schwarze 833: return;
834: }
835:
1.10 schwarze 836: resp_begin_html(200, NULL);
837: resp_searchform(req);
838: resp_show(req, sub);
839: resp_end_html();
1.1 schwarze 840: }
841:
842: static void
1.6 schwarze 843: pg_search(const struct req *req)
1.1 schwarze 844: {
845: struct mansearch search;
846: struct manpaths paths;
847: struct manpage *res;
848: char **cp;
849: const char *ep, *start;
850: size_t ressz;
851: int i, sz;
852:
853: /*
854: * Begin by chdir()ing into the root of the manpath.
855: * This way we can pick up the database files, which are
856: * relative to the manpath root.
857: */
858:
859: if (-1 == (chdir(req->q.manpath))) {
1.12 schwarze 860: pg_error_badrequest(
1.1 schwarze 861: "You specified an invalid manpath.");
862: return;
863: }
864:
865: search.arch = req->q.arch;
866: search.sec = req->q.sec;
1.5 schwarze 867: search.deftype = req->q.equal ? TYPE_Nm : (TYPE_Nm | TYPE_Nd);
868: search.flags = req->q.equal ? MANSEARCH_MAN : 0;
1.1 schwarze 869:
870: paths.sz = 1;
871: paths.paths = mandoc_malloc(sizeof(char *));
872: paths.paths[0] = mandoc_strdup(".");
873:
874: /*
875: * Poor man's tokenisation: just break apart by spaces.
876: * Yes, this is half-ass. But it works for now.
877: */
878:
879: ep = req->q.expr;
880: while (ep && isspace((unsigned char)*ep))
881: ep++;
882:
883: sz = 0;
884: cp = NULL;
885: while (ep && '\0' != *ep) {
886: cp = mandoc_reallocarray(cp, sz + 1, sizeof(char *));
887: start = ep;
888: while ('\0' != *ep && ! isspace((unsigned char)*ep))
889: ep++;
890: cp[sz] = mandoc_malloc((ep - start) + 1);
891: memcpy(cp[sz], start, ep - start);
892: cp[sz++][ep - start] = '\0';
893: while (isspace((unsigned char)*ep))
894: ep++;
895: }
896:
897: if (0 == mansearch(&search, &paths, sz, cp, "Nd", &res, &ressz))
1.12 schwarze 898: pg_noresult(req, "You entered an invalid query.");
1.1 schwarze 899: else if (0 == ressz)
1.12 schwarze 900: pg_noresult(req, "No results found.");
1.1 schwarze 901: else
1.12 schwarze 902: pg_searchres(req, res, ressz);
1.1 schwarze 903:
904: for (i = 0; i < sz; i++)
905: free(cp[i]);
906: free(cp);
907:
908: for (i = 0; i < (int)ressz; i++) {
909: free(res[i].file);
910: free(res[i].names);
911: free(res[i].output);
912: }
913: free(res);
914:
915: free(paths.paths[0]);
916: free(paths.paths);
917: }
918:
919: int
920: main(void)
921: {
1.6 schwarze 922: struct req req;
923: const char *path;
924: char *querystring;
1.1 schwarze 925: int i;
926:
927: /* Scan our run-time environment. */
928:
929: if (NULL == (scriptname = getenv("SCRIPT_NAME")))
930: scriptname = "";
931:
932: /*
1.7 schwarze 933: * First we change directory into the MAN_DIR so that
1.1 schwarze 934: * subsequent scanning for manpath directories is rooted
935: * relative to the same position.
936: */
937:
1.7 schwarze 938: if (-1 == chdir(MAN_DIR)) {
1.1 schwarze 939: fprintf(stderr, "MAN_DIR: %s: %s\n",
1.7 schwarze 940: MAN_DIR, strerror(errno));
1.12 schwarze 941: pg_error_internal();
1.1 schwarze 942: return(EXIT_FAILURE);
943: }
944:
945: memset(&req, 0, sizeof(struct req));
946: pathgen(&req);
947:
948: /* Next parse out the query string. */
949:
950: if (NULL != (querystring = getenv("QUERY_STRING")))
951: http_parse(&req, querystring);
952:
1.6 schwarze 953: /* Dispatch to the three different pages. */
1.1 schwarze 954:
1.6 schwarze 955: path = getenv("PATH_INFO");
956: if (NULL == path)
957: path = "";
958: else if ('/' == *path)
959: path++;
960:
961: if ('\0' != *path)
962: pg_show(&req, path);
963: else if (NULL != req.q.expr)
964: pg_search(&req);
965: else
1.12 schwarze 966: pg_index(&req);
1.1 schwarze 967:
968: for (i = 0; i < (int)req.psz; i++)
969: free(req.p[i]);
970: free(req.p);
971: return(EXIT_SUCCESS);
972: }
973:
974: static int
975: cmp(const void *p1, const void *p2)
976: {
977:
978: return(strcasecmp(((const struct manpage *)p1)->names,
979: ((const struct manpage *)p2)->names));
980: }
981:
982: /*
983: * Scan for indexable paths.
984: */
985: static void
986: pathgen(struct req *req)
987: {
988: FILE *fp;
989: char *dp;
990: size_t dpsz;
991:
1.14 schwarze 992: if (NULL == (fp = fopen("manpath.conf", "r"))) {
993: fprintf(stderr, "%s/manpath.conf: %s\n",
994: MAN_DIR, strerror(errno));
995: pg_error_internal();
996: exit(EXIT_FAILURE);
997: }
1.1 schwarze 998:
999: while (NULL != (dp = fgetln(fp, &dpsz))) {
1000: if ('\n' == dp[dpsz - 1])
1001: dpsz--;
1002: req->p = mandoc_realloc(req->p,
1003: (req->psz + 1) * sizeof(char *));
1004: req->p[req->psz++] = mandoc_strndup(dp, dpsz);
1.14 schwarze 1005: }
1006:
1007: if ( req->p == NULL ) {
1008: fprintf(stderr, "%s/manpath.conf is empty\n", MAN_DIR);
1009: pg_error_internal();
1010: exit(EXIT_FAILURE);
1.1 schwarze 1011: }
1012: }