Annotation of mandoc/cgi.c, Revision 1.53
1.53 ! schwarze 1: /* $Id: cgi.c,v 1.52 2014/07/09 07:30:47 schwarze Exp $ */
1.6 kristaps 2: /*
1.42 kristaps 3: * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.52 schwarze 4: * Copyright (c) 2014 Ingo Schwarze <schwarze@usta.de>
1.6 kristaps 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: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
22: #include <ctype.h>
1.24 kristaps 23: #include <dirent.h>
1.1 kristaps 24: #include <fcntl.h>
1.6 kristaps 25: #include <limits.h>
1.1 kristaps 26: #include <stdio.h>
27: #include <stdlib.h>
28: #include <string.h>
1.6 kristaps 29: #include <unistd.h>
1.1 kristaps 30:
1.46 schwarze 31: #if defined(__sun)
32: /* for stat() */
33: #include <fcntl.h>
34: #include <sys/types.h>
35: #include <sys/stat.h>
36: #endif
37:
1.4 schwarze 38: #include "mandoc.h"
1.50 schwarze 39: #include "mandoc_aux.h"
1.8 kristaps 40: #include "main.h"
1.6 kristaps 41: #include "manpath.h"
1.52 schwarze 42: #include "mansearch.h"
1.1 kristaps 43:
44: enum page {
45: PAGE_INDEX,
46: PAGE_SEARCH,
1.6 kristaps 47: PAGE_SHOW,
1.1 kristaps 48: PAGE__MAX
49: };
50:
1.20 kristaps 51: /*
52: * A query as passed to the search function.
53: */
54: struct query {
1.52 schwarze 55: const char *manroot; /* manual root directory */
1.20 kristaps 56: const char *arch; /* architecture */
57: const char *sec; /* manual section */
58: const char *expr; /* unparsed expression string */
59: int legacy; /* whether legacy mode */
60: };
61:
1.1 kristaps 62: struct req {
1.24 kristaps 63: struct query q;
1.52 schwarze 64: char **p; /* array of available manroots */
1.24 kristaps 65: size_t psz;
1.1 kristaps 66: enum page page;
67: };
68:
1.32 kristaps 69: static void catman(const struct req *, const char *);
1.15 kristaps 70: static int cmp(const void *, const void *);
1.32 kristaps 71: static void format(const struct req *, const char *);
1.6 kristaps 72: static void html_print(const char *);
1.36 kristaps 73: static void html_printquery(const struct req *);
1.10 kristaps 74: static void html_putchar(char);
1.24 kristaps 75: static int http_decode(char *);
1.26 kristaps 76: static void http_parse(struct req *, char *);
1.36 kristaps 77: static void http_print(const char *);
78: static void http_putchar(char);
79: static void http_printquery(const struct req *);
1.52 schwarze 80: static void pathgen(DIR *, struct req *);
1.24 kristaps 81: static void pg_index(const struct req *, char *);
82: static void pg_search(const struct req *, char *);
83: static void pg_show(const struct req *, char *);
1.7 kristaps 84: static void resp_bad(void);
1.6 kristaps 85: static void resp_baddb(void);
1.10 kristaps 86: static void resp_error400(void);
87: static void resp_error404(const char *);
1.6 kristaps 88: static void resp_begin_html(int, const char *);
89: static void resp_begin_http(int, const char *);
90: static void resp_end_html(void);
91: static void resp_index(const struct req *);
1.52 schwarze 92: static void resp_search(const struct req *,
93: struct manpage *, size_t);
1.6 kristaps 94: static void resp_searchform(const struct req *);
95:
1.29 kristaps 96: static const char *progname; /* cgi script name */
97: static const char *cache; /* cache directory */
98: static const char *css; /* css directory */
99: static const char *host; /* hostname */
1.1 kristaps 100:
101: static const char * const pages[PAGE__MAX] = {
102: "index", /* PAGE_INDEX */
103: "search", /* PAGE_SEARCH */
1.6 kristaps 104: "show", /* PAGE_SHOW */
1.1 kristaps 105: };
106:
1.6 kristaps 107: /*
1.20 kristaps 108: * Print a character, escaping HTML along the way.
109: * This will pass non-ASCII straight to output: be warned!
110: */
1.10 kristaps 111: static void
112: html_putchar(char c)
113: {
114:
115: switch (c) {
116: case ('"'):
117: printf(""e;");
118: break;
119: case ('&'):
120: printf("&");
121: break;
122: case ('>'):
123: printf(">");
124: break;
125: case ('<'):
126: printf("<");
127: break;
128: default:
129: putchar((unsigned char)c);
130: break;
131: }
132: }
1.36 kristaps 133: static void
134: http_printquery(const struct req *req)
135: {
136:
1.53 ! schwarze 137: if (NULL != req->q.manroot) {
! 138: printf("&manpath=");
! 139: http_print(req->q.manroot);
! 140: }
! 141: if (NULL != req->q.sec) {
! 142: printf("&sec=");
! 143: http_print(req->q.sec);
! 144: }
! 145: if (NULL != req->q.arch) {
! 146: printf("&arch=");
! 147: http_print(req->q.arch);
! 148: }
! 149: if (NULL != req->q.expr) {
! 150: printf("&expr=");
! 151: http_print(req->q.expr ? req->q.expr : "");
! 152: }
1.36 kristaps 153: }
154:
155:
156: static void
157: html_printquery(const struct req *req)
158: {
159:
1.53 ! schwarze 160: if (NULL != req->q.manroot) {
! 161: printf("&manpath=");
! 162: html_print(req->q.manroot);
! 163: }
! 164: if (NULL != req->q.sec) {
! 165: printf("&sec=");
! 166: html_print(req->q.sec);
! 167: }
! 168: if (NULL != req->q.arch) {
! 169: printf("&arch=");
! 170: html_print(req->q.arch);
! 171: }
! 172: if (NULL != req->q.expr) {
! 173: printf("&expr=");
! 174: html_print(req->q.expr ? req->q.expr : "");
! 175: }
1.36 kristaps 176: }
177:
178: static void
179: http_print(const char *p)
180: {
181:
182: if (NULL == p)
183: return;
184: while ('\0' != *p)
185: http_putchar(*p++);
186: }
1.10 kristaps 187:
1.6 kristaps 188: /*
1.20 kristaps 189: * Call through to html_putchar().
190: * Accepts NULL strings.
1.6 kristaps 191: */
1.1 kristaps 192: static void
1.6 kristaps 193: html_print(const char *p)
1.1 kristaps 194: {
1.6 kristaps 195:
196: if (NULL == p)
197: return;
1.1 kristaps 198: while ('\0' != *p)
1.10 kristaps 199: html_putchar(*p++);
1.1 kristaps 200: }
201:
202: /*
203: * Parse out key-value pairs from an HTTP request variable.
1.6 kristaps 204: * This can be either a cookie or a POST/GET string, although man.cgi
205: * uses only GET for simplicity.
1.1 kristaps 206: */
207: static void
1.26 kristaps 208: http_parse(struct req *req, char *p)
1.1 kristaps 209: {
1.52 schwarze 210: char *key, *val;
211: int legacy;
1.1 kristaps 212:
1.26 kristaps 213: memset(&req->q, 0, sizeof(struct query));
1.52 schwarze 214: req->q.manroot = req->p[0];
1.24 kristaps 215:
216: legacy = -1;
1.36 kristaps 217: while ('\0' != *p) {
1.1 kristaps 218: key = p;
219: val = NULL;
220:
1.36 kristaps 221: p += (int)strcspn(p, ";&");
222: if ('\0' != *p)
1.1 kristaps 223: *p++ = '\0';
1.36 kristaps 224: if (NULL != (val = strchr(key, '=')))
225: *val++ = '\0';
1.1 kristaps 226:
1.36 kristaps 227: if ('\0' == *key || NULL == val || '\0' == *val)
1.1 kristaps 228: continue;
229:
230: /* Just abort handling. */
231:
1.24 kristaps 232: if ( ! http_decode(key))
233: break;
1.36 kristaps 234: if (NULL != val && ! http_decode(val))
1.24 kristaps 235: break;
236:
237: if (0 == strcmp(key, "expr"))
1.26 kristaps 238: req->q.expr = val;
1.24 kristaps 239: else if (0 == strcmp(key, "query"))
1.26 kristaps 240: req->q.expr = val;
1.24 kristaps 241: else if (0 == strcmp(key, "sec"))
1.26 kristaps 242: req->q.sec = val;
1.24 kristaps 243: else if (0 == strcmp(key, "sektion"))
1.26 kristaps 244: req->q.sec = val;
1.24 kristaps 245: else if (0 == strcmp(key, "arch"))
1.26 kristaps 246: req->q.arch = val;
247: else if (0 == strcmp(key, "manpath"))
1.52 schwarze 248: req->q.manroot = val;
1.24 kristaps 249: else if (0 == strcmp(key, "apropos"))
250: legacy = 0 == strcmp(val, "0");
251: }
1.1 kristaps 252:
1.24 kristaps 253: /* Test for old man.cgi compatibility mode. */
1.1 kristaps 254:
1.40 kristaps 255: req->q.legacy = legacy > 0;
1.24 kristaps 256:
257: /*
258: * Section "0" means no section when in legacy mode.
259: * For some man.cgi scripts, "default" arch is none.
260: */
261:
1.26 kristaps 262: if (req->q.legacy && NULL != req->q.sec)
263: if (0 == strcmp(req->q.sec, "0"))
264: req->q.sec = NULL;
265: if (req->q.legacy && NULL != req->q.arch)
266: if (0 == strcmp(req->q.arch, "default"))
267: req->q.arch = NULL;
1.1 kristaps 268: }
269:
1.36 kristaps 270: static void
271: http_putchar(char c)
272: {
273:
274: if (isalnum((unsigned char)c)) {
275: putchar((unsigned char)c);
276: return;
277: } else if (' ' == c) {
278: putchar('+');
279: return;
280: }
281: printf("%%%.2x", c);
282: }
283:
1.1 kristaps 284: /*
1.6 kristaps 285: * HTTP-decode a string. The standard explanation is that this turns
286: * "%4e+foo" into "n foo" in the regular way. This is done in-place
287: * over the allocated string.
1.1 kristaps 288: */
289: static int
1.24 kristaps 290: http_decode(char *p)
1.1 kristaps 291: {
292: char hex[3];
293: int c;
294:
295: hex[2] = '\0';
296:
297: for ( ; '\0' != *p; p++) {
298: if ('%' == *p) {
299: if ('\0' == (hex[0] = *(p + 1)))
300: return(0);
301: if ('\0' == (hex[1] = *(p + 2)))
302: return(0);
303: if (1 != sscanf(hex, "%x", &c))
304: return(0);
305: if ('\0' == c)
306: return(0);
307:
308: *p = (char)c;
309: memmove(p + 1, p + 3, strlen(p + 3) + 1);
310: } else
311: *p = '+' == *p ? ' ' : *p;
312: }
313:
314: *p = '\0';
315: return(1);
316: }
317:
1.6 kristaps 318: static void
319: resp_begin_http(int code, const char *msg)
320: {
321:
322: if (200 != code)
323: printf("Status: %d %s\n", code, msg);
324:
1.20 kristaps 325: puts("Content-Type: text/html; charset=utf-8\n"
326: "Cache-Control: no-cache\n"
327: "Pragma: no-cache\n"
1.6 kristaps 328: "");
329:
330: fflush(stdout);
331: }
332:
333: static void
334: resp_begin_html(int code, const char *msg)
335: {
336:
337: resp_begin_http(code, msg);
338:
1.29 kristaps 339: printf("<!DOCTYPE HTML PUBLIC "
340: " \"-//W3C//DTD HTML 4.01//EN\""
341: " \"http://www.w3.org/TR/html4/strict.dtd\">\n"
342: "<HTML>\n"
343: "<HEAD>\n"
344: "<META HTTP-EQUIV=\"Content-Type\""
345: " CONTENT=\"text/html; charset=utf-8\">\n"
1.32 kristaps 346: "<LINK REL=\"stylesheet\" HREF=\"%s/man-cgi.css\""
347: " TYPE=\"text/css\" media=\"all\">\n"
348: "<LINK REL=\"stylesheet\" HREF=\"%s/man.css\""
1.29 kristaps 349: " TYPE=\"text/css\" media=\"all\">\n"
350: "<TITLE>System Manpage Reference</TITLE>\n"
351: "</HEAD>\n"
352: "<BODY>\n"
1.32 kristaps 353: "<!-- Begin page content. //-->\n", css, css);
1.6 kristaps 354: }
355:
356: static void
357: resp_end_html(void)
358: {
359:
1.20 kristaps 360: puts("</BODY>\n"
361: "</HTML>");
1.6 kristaps 362: }
363:
364: static void
365: resp_searchform(const struct req *req)
366: {
1.27 kristaps 367: int i;
1.13 kristaps 368:
1.6 kristaps 369: puts("<!-- Begin search form. //-->");
1.32 kristaps 370: printf("<DIV ID=\"mancgi\">\n"
1.52 schwarze 371: "<FORM ACTION=\"%s/search\" METHOD=\"get\">\n"
1.29 kristaps 372: "<FIELDSET>\n"
1.16 kristaps 373: "<LEGEND>Search Parameters</LEGEND>\n"
1.40 kristaps 374: "<INPUT TYPE=\"submit\" "
375: " VALUE=\"Search\"> for manuals satisfying \n"
1.29 kristaps 376: "<INPUT TYPE=\"text\" NAME=\"expr\" VALUE=\"",
377: progname);
1.24 kristaps 378: html_print(req->q.expr ? req->q.expr : "");
1.14 kristaps 379: printf("\">, section "
1.20 kristaps 380: "<INPUT TYPE=\"text\""
381: " SIZE=\"4\" NAME=\"sec\" VALUE=\"");
1.24 kristaps 382: html_print(req->q.sec ? req->q.sec : "");
1.14 kristaps 383: printf("\">, arch "
1.20 kristaps 384: "<INPUT TYPE=\"text\""
385: " SIZE=\"8\" NAME=\"arch\" VALUE=\"");
1.24 kristaps 386: html_print(req->q.arch ? req->q.arch : "");
1.27 kristaps 387: printf("\">");
388: if (req->psz > 1) {
389: puts(", <SELECT NAME=\"manpath\">");
390: for (i = 0; i < (int)req->psz; i++) {
1.52 schwarze 391: printf("<OPTION ");
392: if (NULL == req->q.manroot ? 0 == i :
393: 0 == strcmp(req->q.manroot, req->p[i]))
394: printf("SELECTED=\"selected\" ");
395: printf("VALUE=\"");
396: html_print(req->p[i]);
1.27 kristaps 397: printf("\">");
1.52 schwarze 398: html_print(req->p[i]);
1.27 kristaps 399: puts("</OPTION>");
400: }
401: puts("</SELECT>");
402: }
403: puts(".\n"
1.12 kristaps 404: "<INPUT TYPE=\"reset\" VALUE=\"Reset\">\n"
405: "</FIELDSET>\n"
1.32 kristaps 406: "</FORM>\n"
407: "</DIV>");
1.20 kristaps 408: puts("<!-- End search form. //-->");
1.6 kristaps 409: }
410:
411: static void
412: resp_index(const struct req *req)
413: {
414:
415: resp_begin_html(200, NULL);
416: resp_searchform(req);
417: resp_end_html();
418: }
419:
420: static void
1.10 kristaps 421: resp_error400(void)
1.9 kristaps 422: {
423:
1.10 kristaps 424: resp_begin_html(400, "Query Malformed");
1.12 kristaps 425: printf("<H1>Malformed Query</H1>\n"
426: "<P>\n"
1.20 kristaps 427: "The query your entered was malformed.\n"
428: "Try again from the\n"
1.22 kristaps 429: "<A HREF=\"%s/index.html\">main page</A>.\n"
1.12 kristaps 430: "</P>", progname);
1.9 kristaps 431: resp_end_html();
432: }
433:
434: static void
1.10 kristaps 435: resp_error404(const char *page)
1.6 kristaps 436: {
437:
438: resp_begin_html(404, "Not Found");
1.10 kristaps 439: puts("<H1>Page Not Found</H1>\n"
440: "<P>\n"
1.20 kristaps 441: "The page you're looking for, ");
442: printf("<B>");
1.10 kristaps 443: html_print(page);
1.12 kristaps 444: printf("</B>,\n"
1.20 kristaps 445: "could not be found.\n"
446: "Try searching from the\n"
1.22 kristaps 447: "<A HREF=\"%s/index.html\">main page</A>.\n"
1.12 kristaps 448: "</P>", progname);
1.6 kristaps 449: resp_end_html();
450: }
1.1 kristaps 451:
452: static void
1.7 kristaps 453: resp_bad(void)
454: {
455: resp_begin_html(500, "Internal Server Error");
456: puts("<P>Generic badness happened.</P>");
457: resp_end_html();
458: }
459:
460: static void
1.6 kristaps 461: resp_baddb(void)
1.1 kristaps 462: {
463:
1.6 kristaps 464: resp_begin_html(500, "Internal Server Error");
465: puts("<P>Your database is broken.</P>");
466: resp_end_html();
1.1 kristaps 467: }
468:
469: static void
1.52 schwarze 470: resp_search(const struct req *req, struct manpage *r, size_t sz)
1.1 kristaps 471: {
1.52 schwarze 472: size_t i;
1.19 kristaps 473:
1.52 schwarze 474: if (1 == sz) {
1.6 kristaps 475: /*
476: * If we have just one result, then jump there now
477: * without any delay.
478: */
479: puts("Status: 303 See Other");
1.52 schwarze 480: printf("Location: http://%s%s/show/%s/%s?",
481: host, progname, req->q.manroot, r[0].file);
1.36 kristaps 482: http_printquery(req);
483: puts("\n"
484: "Content-Type: text/html; charset=utf-8\n");
1.6 kristaps 485: return;
486: }
487:
1.12 kristaps 488: resp_begin_html(200, NULL);
1.19 kristaps 489: resp_searchform(req);
1.6 kristaps 490:
1.33 kristaps 491: puts("<DIV CLASS=\"results\">");
492:
1.52 schwarze 493: if (0 == sz) {
1.40 kristaps 494: puts("<P>\n"
495: "No results found.\n"
496: "</P>\n"
497: "</DIV>");
1.14 kristaps 498: resp_end_html();
499: return;
500: }
501:
1.52 schwarze 502: qsort(r, sz, sizeof(struct manpage), cmp);
1.41 kristaps 503:
1.33 kristaps 504: puts("<TABLE>");
1.1 kristaps 505:
1.41 kristaps 506: for (i = 0; i < sz; i++) {
1.20 kristaps 507: printf("<TR>\n"
508: "<TD CLASS=\"title\">\n"
1.52 schwarze 509: "<A HREF=\"%s/show/%s/%s?",
510: progname, req->q.manroot, r[i].file);
1.36 kristaps 511: html_printquery(req);
512: printf("\">");
1.52 schwarze 513: html_print(r[i].names);
514: printf("</A>\n"
1.20 kristaps 515: "</TD>\n"
516: "<TD CLASS=\"desc\">");
1.52 schwarze 517: html_print(r[i].output);
1.20 kristaps 518: puts("</TD>\n"
519: "</TR>");
1.1 kristaps 520: }
1.16 kristaps 521:
1.33 kristaps 522: puts("</TABLE>\n"
523: "</DIV>");
1.6 kristaps 524: resp_end_html();
525: }
526:
527: /* ARGSUSED */
528: static void
1.24 kristaps 529: pg_index(const struct req *req, char *path)
1.6 kristaps 530: {
531:
532: resp_index(req);
1.1 kristaps 533: }
534:
535: static void
1.32 kristaps 536: catman(const struct req *req, const char *file)
1.9 kristaps 537: {
1.10 kristaps 538: FILE *f;
539: size_t len;
540: int i;
541: char *p;
542: int italic, bold;
1.9 kristaps 543:
1.10 kristaps 544: if (NULL == (f = fopen(file, "r"))) {
1.9 kristaps 545: resp_baddb();
546: return;
547: }
548:
1.32 kristaps 549: resp_begin_html(200, NULL);
550: resp_searchform(req);
551: puts("<DIV CLASS=\"catman\">\n"
552: "<PRE>");
1.10 kristaps 553:
554: while (NULL != (p = fgetln(f, &len))) {
555: bold = italic = 0;
556: for (i = 0; i < (int)len - 1; i++) {
557: /*
558: * This means that the catpage is out of state.
559: * Ignore it and keep going (although the
560: * catpage is bogus).
561: */
562:
563: if ('\b' == p[i] || '\n' == p[i])
564: continue;
565:
566: /*
567: * Print a regular character.
568: * Close out any bold/italic scopes.
569: * If we're in back-space mode, make sure we'll
570: * have something to enter when we backspace.
571: */
572:
573: if ('\b' != p[i + 1]) {
574: if (italic)
575: printf("</I>");
576: if (bold)
577: printf("</B>");
578: italic = bold = 0;
579: html_putchar(p[i]);
580: continue;
581: } else if (i + 2 >= (int)len)
582: continue;
583:
584: /* Italic mode. */
585:
586: if ('_' == p[i]) {
587: if (bold)
588: printf("</B>");
589: if ( ! italic)
590: printf("<I>");
591: bold = 0;
592: italic = 1;
593: i += 2;
594: html_putchar(p[i]);
595: continue;
596: }
597:
598: /*
599: * Handle funny behaviour troff-isms.
600: * These grok'd from the original man2html.c.
601: */
602:
603: if (('+' == p[i] && 'o' == p[i + 2]) ||
604: ('o' == p[i] && '+' == p[i + 2]) ||
605: ('|' == p[i] && '=' == p[i + 2]) ||
606: ('=' == p[i] && '|' == p[i + 2]) ||
607: ('*' == p[i] && '=' == p[i + 2]) ||
608: ('=' == p[i] && '*' == p[i + 2]) ||
609: ('*' == p[i] && '|' == p[i + 2]) ||
610: ('|' == p[i] && '*' == p[i + 2])) {
611: if (italic)
612: printf("</I>");
613: if (bold)
614: printf("</B>");
615: italic = bold = 0;
616: putchar('*');
617: i += 2;
618: continue;
619: } else if (('|' == p[i] && '-' == p[i + 2]) ||
620: ('-' == p[i] && '|' == p[i + 1]) ||
621: ('+' == p[i] && '-' == p[i + 1]) ||
622: ('-' == p[i] && '+' == p[i + 1]) ||
623: ('+' == p[i] && '|' == p[i + 1]) ||
624: ('|' == p[i] && '+' == p[i + 1])) {
625: if (italic)
626: printf("</I>");
627: if (bold)
628: printf("</B>");
629: italic = bold = 0;
630: putchar('+');
631: i += 2;
632: continue;
633: }
634:
635: /* Bold mode. */
636:
637: if (italic)
638: printf("</I>");
639: if ( ! bold)
640: printf("<B>");
641: bold = 1;
642: italic = 0;
643: i += 2;
644: html_putchar(p[i]);
645: }
646:
647: /*
648: * Clean up the last character.
649: * We can get to a newline; don't print that.
650: */
1.9 kristaps 651:
1.10 kristaps 652: if (italic)
653: printf("</I>");
654: if (bold)
655: printf("</B>");
1.9 kristaps 656:
1.10 kristaps 657: if (i == (int)len - 1 && '\n' != p[i])
658: html_putchar(p[i]);
1.9 kristaps 659:
1.10 kristaps 660: putchar('\n');
661: }
662:
663: puts("</PRE>\n"
1.32 kristaps 664: "</DIV>\n"
1.10 kristaps 665: "</BODY>\n"
666: "</HTML>");
667:
668: fclose(f);
1.9 kristaps 669: }
670:
671: static void
1.32 kristaps 672: format(const struct req *req, const char *file)
1.7 kristaps 673: {
1.8 kristaps 674: struct mparse *mp;
675: int fd;
676: struct mdoc *mdoc;
677: struct man *man;
678: void *vp;
679: enum mandoclevel rc;
1.45 schwarze 680: char opts[PATH_MAX + 128];
1.7 kristaps 681:
1.8 kristaps 682: if (-1 == (fd = open(file, O_RDONLY, 0))) {
683: resp_baddb();
1.7 kristaps 684: return;
685: }
686:
1.48 schwarze 687: mp = mparse_alloc(MPARSE_SO, MANDOCLEVEL_FATAL, NULL, NULL);
1.8 kristaps 688: rc = mparse_readfd(mp, fd, file);
689: close(fd);
1.7 kristaps 690:
1.8 kristaps 691: if (rc >= MANDOCLEVEL_FATAL) {
1.7 kristaps 692: resp_baddb();
693: return;
694: }
695:
1.52 schwarze 696: snprintf(opts, sizeof(opts),
697: "fragment,man=%s/search?sec=%%S&expr=Nm~^%%N$",
698: progname);
1.10 kristaps 699:
1.49 schwarze 700: mparse_result(mp, &mdoc, &man, NULL);
1.32 kristaps 701: if (NULL == man && NULL == mdoc) {
702: resp_baddb();
703: mparse_free(mp);
704: return;
705: }
706:
707: resp_begin_html(200, NULL);
708: resp_searchform(req);
709:
1.10 kristaps 710: vp = html_alloc(opts);
1.7 kristaps 711:
1.32 kristaps 712: if (NULL != mdoc)
1.8 kristaps 713: html_mdoc(vp, mdoc);
1.32 kristaps 714: else
1.8 kristaps 715: html_man(vp, man);
1.32 kristaps 716:
717: puts("</BODY>\n"
718: "</HTML>");
1.7 kristaps 719:
1.8 kristaps 720: html_free(vp);
721: mparse_free(mp);
1.7 kristaps 722: }
723:
724: static void
1.24 kristaps 725: pg_show(const struct req *req, char *path)
1.1 kristaps 726: {
1.6 kristaps 727: char *sub;
1.25 kristaps 728:
729: if (NULL == path || NULL == (sub = strchr(path, '/'))) {
730: resp_error400();
731: return;
732: }
733: *sub++ = '\0';
1.6 kristaps 734:
1.24 kristaps 735: /*
1.26 kristaps 736: * Begin by chdir()ing into the manroot.
1.24 kristaps 737: * This way we can pick up the database files, which are
738: * relative to the manpath root.
739: */
740:
1.52 schwarze 741: if (-1 == chdir(path)) {
742: perror(path);
1.25 kristaps 743: resp_baddb();
1.24 kristaps 744: return;
745: }
746:
1.52 schwarze 747: if ('c' == *sub)
748: catman(req, sub);
749: else
750: format(req, sub);
1.6 kristaps 751: }
752:
753: static void
1.24 kristaps 754: pg_search(const struct req *req, char *path)
1.6 kristaps 755: {
1.52 schwarze 756: struct mansearch search;
757: struct manpaths paths;
758: struct manpage *res;
759: char **cp;
760: const char *ep, *start;
761: size_t ressz;
762: int i, sz;
1.6 kristaps 763:
764: /*
1.24 kristaps 765: * Begin by chdir()ing into the root of the manpath.
766: * This way we can pick up the database files, which are
767: * relative to the manpath root.
768: */
769:
1.52 schwarze 770: if (-1 == (chdir(req->q.manroot))) {
771: perror(req->q.manroot);
772: resp_search(req, NULL, 0);
1.24 kristaps 773: return;
774: }
775:
1.52 schwarze 776: search.arch = req->q.arch;
777: search.sec = req->q.sec;
778: search.deftype = TYPE_Nm | TYPE_Nd;
779: search.flags = 0;
780:
781: paths.sz = 1;
782: paths.paths = mandoc_malloc(sizeof(char *));
783: paths.paths[0] = mandoc_strdup(".");
1.24 kristaps 784:
785: /*
786: * Poor man's tokenisation: just break apart by spaces.
1.6 kristaps 787: * Yes, this is half-ass. But it works for now.
788: */
789:
1.52 schwarze 790: ep = req->q.expr;
1.6 kristaps 791: while (ep && isspace((unsigned char)*ep))
792: ep++;
793:
1.52 schwarze 794: sz = 0;
795: cp = NULL;
1.6 kristaps 796: while (ep && '\0' != *ep) {
1.51 schwarze 797: cp = mandoc_reallocarray(cp, sz + 1, sizeof(char *));
1.6 kristaps 798: start = ep;
799: while ('\0' != *ep && ! isspace((unsigned char)*ep))
800: ep++;
801: cp[sz] = mandoc_malloc((ep - start) + 1);
802: memcpy(cp[sz], start, ep - start);
803: cp[sz++][ep - start] = '\0';
804: while (isspace((unsigned char)*ep))
805: ep++;
806: }
807:
1.52 schwarze 808: if (mansearch(&search, &paths, sz, cp, "Nd", &res, &ressz))
809: resp_search(req, res, ressz);
810: else
1.6 kristaps 811: resp_baddb();
812:
813: for (i = 0; i < sz; i++)
814: free(cp[i]);
1.52 schwarze 815: free(cp);
816:
817: for (i = 0; i < (int)ressz; i++) {
818: free(res[i].file);
819: free(res[i].names);
820: free(res[i].output);
821: }
822: free(res);
1.6 kristaps 823:
1.52 schwarze 824: free(paths.paths[0]);
825: free(paths.paths);
1.1 kristaps 826: }
827:
828: int
829: main(void)
830: {
831: int i;
1.24 kristaps 832: DIR *cwd;
1.1 kristaps 833: struct req req;
1.6 kristaps 834: char *p, *path, *subpath;
835:
1.24 kristaps 836: /* Scan our run-time environment. */
1.6 kristaps 837:
1.29 kristaps 838: if (NULL == (cache = getenv("CACHE_DIR")))
839: cache = "/cache/man.cgi";
840:
841: if (NULL == (progname = getenv("SCRIPT_NAME")))
1.6 kristaps 842: progname = "";
843:
1.29 kristaps 844: if (NULL == (css = getenv("CSS_DIR")))
1.31 kristaps 845: css = "";
1.7 kristaps 846:
1.29 kristaps 847: if (NULL == (host = getenv("HTTP_HOST")))
1.24 kristaps 848: host = "localhost";
849:
850: /*
851: * First we change directory into the cache directory so that
852: * subsequent scanning for manpath directories is rooted
853: * relative to the same position.
854: */
855:
1.8 kristaps 856: if (-1 == chdir(cache)) {
1.24 kristaps 857: perror(cache);
858: resp_bad();
859: return(EXIT_FAILURE);
860: } else if (NULL == (cwd = opendir(cache))) {
861: perror(cache);
1.8 kristaps 862: resp_bad();
863: return(EXIT_FAILURE);
1.24 kristaps 864: }
865:
866: memset(&req, 0, sizeof(struct req));
1.7 kristaps 867:
1.52 schwarze 868: pathgen(cwd, &req);
1.24 kristaps 869: closedir(cwd);
1.1 kristaps 870:
1.24 kristaps 871: /* Next parse out the query string. */
1.1 kristaps 872:
873: if (NULL != (p = getenv("QUERY_STRING")))
1.26 kristaps 874: http_parse(&req, p);
1.1 kristaps 875:
1.24 kristaps 876: /*
877: * Now juggle paths to extract information.
878: * We want to extract our filetype (the file suffix), the
879: * initial path component, then the trailing component(s).
880: * Start with leading subpath component.
881: */
1.1 kristaps 882:
1.6 kristaps 883: subpath = path = NULL;
1.1 kristaps 884: req.page = PAGE__MAX;
885:
886: if (NULL == (path = getenv("PATH_INFO")) || '\0' == *path)
887: req.page = PAGE_INDEX;
1.6 kristaps 888:
1.1 kristaps 889: if (NULL != path && '/' == *path && '\0' == *++path)
890: req.page = PAGE_INDEX;
891:
1.6 kristaps 892: /* Resolve subpath component. */
1.1 kristaps 893:
894: if (NULL != path && NULL != (subpath = strchr(path, '/')))
1.6 kristaps 895: *subpath++ = '\0';
1.1 kristaps 896:
1.6 kristaps 897: /* Map path into one we recognise. */
1.1 kristaps 898:
899: if (NULL != path && '\0' != *path)
900: for (i = 0; i < (int)PAGE__MAX; i++)
901: if (0 == strcmp(pages[i], path)) {
902: req.page = (enum page)i;
903: break;
904: }
905:
1.6 kristaps 906: /* Route pages. */
907:
1.1 kristaps 908: switch (req.page) {
909: case (PAGE_INDEX):
1.24 kristaps 910: pg_index(&req, subpath);
1.1 kristaps 911: break;
912: case (PAGE_SEARCH):
1.24 kristaps 913: pg_search(&req, subpath);
1.6 kristaps 914: break;
915: case (PAGE_SHOW):
1.24 kristaps 916: pg_show(&req, subpath);
1.1 kristaps 917: break;
918: default:
1.10 kristaps 919: resp_error404(path);
1.1 kristaps 920: break;
921: }
922:
1.52 schwarze 923: for (i = 0; i < (int)req.psz; i++)
924: free(req.p[i]);
1.24 kristaps 925: free(req.p);
1.1 kristaps 926: return(EXIT_SUCCESS);
927: }
1.15 kristaps 928:
929: static int
930: cmp(const void *p1, const void *p2)
931: {
932:
1.52 schwarze 933: return(strcasecmp(((const struct manpage *)p1)->names,
934: ((const struct manpage *)p2)->names));
1.24 kristaps 935: }
936:
937: /*
938: * Scan for indexable paths.
939: */
940: static void
1.52 schwarze 941: pathgen(DIR *dir, struct req *req)
1.24 kristaps 942: {
943: struct dirent *d;
1.46 schwarze 944: #if defined(__sun)
945: struct stat sb;
946: #endif
1.24 kristaps 947:
948: while (NULL != (d = readdir(dir))) {
1.46 schwarze 949: #if defined(__sun)
950: stat(d->d_name, &sb);
951: if (!(S_IFDIR & sb.st_mode)
952: #else
953: if (DT_DIR != d->d_type
954: #endif
1.52 schwarze 955: || '.' != d->d_name[0]) {
956: req->p = mandoc_realloc(req->p,
957: (req->psz + 1) * sizeof(char *));
958: req->p[req->psz++] = mandoc_strdup(d->d_name);
1.24 kristaps 959: }
960: }
961: }
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