Annotation of mandoc/cgi.c, Revision 1.54
1.54 ! schwarze 1: /* $Id: cgi.c,v 1.53 2014/07/09 08:53:28 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>
1.1 kristaps 23: #include <fcntl.h>
1.6 kristaps 24: #include <limits.h>
1.1 kristaps 25: #include <stdio.h>
26: #include <stdlib.h>
27: #include <string.h>
1.6 kristaps 28: #include <unistd.h>
1.1 kristaps 29:
1.46 schwarze 30: #if defined(__sun)
31: /* for stat() */
32: #include <fcntl.h>
33: #include <sys/types.h>
34: #include <sys/stat.h>
35: #endif
36:
1.4 schwarze 37: #include "mandoc.h"
1.50 schwarze 38: #include "mandoc_aux.h"
1.8 kristaps 39: #include "main.h"
1.6 kristaps 40: #include "manpath.h"
1.52 schwarze 41: #include "mansearch.h"
1.1 kristaps 42:
43: enum page {
44: PAGE_INDEX,
45: PAGE_SEARCH,
1.6 kristaps 46: PAGE_SHOW,
1.1 kristaps 47: PAGE__MAX
48: };
49:
1.20 kristaps 50: /*
51: * A query as passed to the search function.
52: */
53: struct query {
1.52 schwarze 54: const char *manroot; /* manual root directory */
1.20 kristaps 55: const char *arch; /* architecture */
56: const char *sec; /* manual section */
57: const char *expr; /* unparsed expression string */
58: int legacy; /* whether legacy mode */
59: };
60:
1.1 kristaps 61: struct req {
1.24 kristaps 62: struct query q;
1.52 schwarze 63: char **p; /* array of available manroots */
1.24 kristaps 64: size_t psz;
1.1 kristaps 65: enum page page;
66: };
67:
1.32 kristaps 68: static void catman(const struct req *, const char *);
1.15 kristaps 69: static int cmp(const void *, const void *);
1.32 kristaps 70: static void format(const struct req *, const char *);
1.6 kristaps 71: static void html_print(const char *);
1.36 kristaps 72: static void html_printquery(const struct req *);
1.10 kristaps 73: static void html_putchar(char);
1.24 kristaps 74: static int http_decode(char *);
1.26 kristaps 75: static void http_parse(struct req *, char *);
1.36 kristaps 76: static void http_print(const char *);
77: static void http_putchar(char);
78: static void http_printquery(const struct req *);
1.54 ! schwarze 79: static void pathgen(struct req *);
1.24 kristaps 80: static void pg_index(const struct req *, char *);
81: static void pg_search(const struct req *, char *);
82: static void pg_show(const struct req *, char *);
1.7 kristaps 83: static void resp_bad(void);
1.6 kristaps 84: static void resp_baddb(void);
1.10 kristaps 85: static void resp_error400(void);
86: static void resp_error404(const char *);
1.6 kristaps 87: static void resp_begin_html(int, const char *);
88: static void resp_begin_http(int, const char *);
89: static void resp_end_html(void);
90: static void resp_index(const struct req *);
1.52 schwarze 91: static void resp_search(const struct req *,
92: struct manpage *, size_t);
1.6 kristaps 93: static void resp_searchform(const struct req *);
94:
1.29 kristaps 95: static const char *progname; /* cgi script name */
96: static const char *cache; /* cache directory */
97: static const char *css; /* css directory */
98: static const char *host; /* hostname */
1.1 kristaps 99:
100: static const char * const pages[PAGE__MAX] = {
101: "index", /* PAGE_INDEX */
102: "search", /* PAGE_SEARCH */
1.6 kristaps 103: "show", /* PAGE_SHOW */
1.1 kristaps 104: };
105:
1.6 kristaps 106: /*
1.20 kristaps 107: * Print a character, escaping HTML along the way.
108: * This will pass non-ASCII straight to output: be warned!
109: */
1.10 kristaps 110: static void
111: html_putchar(char c)
112: {
113:
114: switch (c) {
115: case ('"'):
116: printf(""e;");
117: break;
118: case ('&'):
119: printf("&");
120: break;
121: case ('>'):
122: printf(">");
123: break;
124: case ('<'):
125: printf("<");
126: break;
127: default:
128: putchar((unsigned char)c);
129: break;
130: }
131: }
1.36 kristaps 132: static void
133: http_printquery(const struct req *req)
134: {
135:
1.53 schwarze 136: if (NULL != req->q.manroot) {
137: printf("&manpath=");
138: http_print(req->q.manroot);
139: }
140: if (NULL != req->q.sec) {
141: printf("&sec=");
142: http_print(req->q.sec);
143: }
144: if (NULL != req->q.arch) {
145: printf("&arch=");
146: http_print(req->q.arch);
147: }
148: if (NULL != req->q.expr) {
149: printf("&expr=");
150: http_print(req->q.expr ? req->q.expr : "");
151: }
1.36 kristaps 152: }
153:
154:
155: static void
156: html_printquery(const struct req *req)
157: {
158:
1.53 schwarze 159: if (NULL != req->q.manroot) {
160: printf("&manpath=");
161: html_print(req->q.manroot);
162: }
163: if (NULL != req->q.sec) {
164: printf("&sec=");
165: html_print(req->q.sec);
166: }
167: if (NULL != req->q.arch) {
168: printf("&arch=");
169: html_print(req->q.arch);
170: }
171: if (NULL != req->q.expr) {
172: printf("&expr=");
173: html_print(req->q.expr ? req->q.expr : "");
174: }
1.36 kristaps 175: }
176:
177: static void
178: http_print(const char *p)
179: {
180:
181: if (NULL == p)
182: return;
183: while ('\0' != *p)
184: http_putchar(*p++);
185: }
1.10 kristaps 186:
1.6 kristaps 187: /*
1.20 kristaps 188: * Call through to html_putchar().
189: * Accepts NULL strings.
1.6 kristaps 190: */
1.1 kristaps 191: static void
1.6 kristaps 192: html_print(const char *p)
1.1 kristaps 193: {
1.6 kristaps 194:
195: if (NULL == p)
196: return;
1.1 kristaps 197: while ('\0' != *p)
1.10 kristaps 198: html_putchar(*p++);
1.1 kristaps 199: }
200:
201: /*
202: * Parse out key-value pairs from an HTTP request variable.
1.6 kristaps 203: * This can be either a cookie or a POST/GET string, although man.cgi
204: * uses only GET for simplicity.
1.1 kristaps 205: */
206: static void
1.26 kristaps 207: http_parse(struct req *req, char *p)
1.1 kristaps 208: {
1.52 schwarze 209: char *key, *val;
210: int legacy;
1.1 kristaps 211:
1.26 kristaps 212: memset(&req->q, 0, sizeof(struct query));
1.52 schwarze 213: req->q.manroot = req->p[0];
1.24 kristaps 214:
215: legacy = -1;
1.36 kristaps 216: while ('\0' != *p) {
1.1 kristaps 217: key = p;
218: val = NULL;
219:
1.36 kristaps 220: p += (int)strcspn(p, ";&");
221: if ('\0' != *p)
1.1 kristaps 222: *p++ = '\0';
1.36 kristaps 223: if (NULL != (val = strchr(key, '=')))
224: *val++ = '\0';
1.1 kristaps 225:
1.36 kristaps 226: if ('\0' == *key || NULL == val || '\0' == *val)
1.1 kristaps 227: continue;
228:
229: /* Just abort handling. */
230:
1.24 kristaps 231: if ( ! http_decode(key))
232: break;
1.36 kristaps 233: if (NULL != val && ! http_decode(val))
1.24 kristaps 234: break;
235:
236: if (0 == strcmp(key, "expr"))
1.26 kristaps 237: req->q.expr = val;
1.24 kristaps 238: else if (0 == strcmp(key, "query"))
1.26 kristaps 239: req->q.expr = val;
1.24 kristaps 240: else if (0 == strcmp(key, "sec"))
1.26 kristaps 241: req->q.sec = val;
1.24 kristaps 242: else if (0 == strcmp(key, "sektion"))
1.26 kristaps 243: req->q.sec = val;
1.24 kristaps 244: else if (0 == strcmp(key, "arch"))
1.26 kristaps 245: req->q.arch = val;
246: else if (0 == strcmp(key, "manpath"))
1.52 schwarze 247: req->q.manroot = val;
1.24 kristaps 248: else if (0 == strcmp(key, "apropos"))
249: legacy = 0 == strcmp(val, "0");
250: }
1.1 kristaps 251:
1.24 kristaps 252: /* Test for old man.cgi compatibility mode. */
1.1 kristaps 253:
1.40 kristaps 254: req->q.legacy = legacy > 0;
1.24 kristaps 255:
256: /*
257: * Section "0" means no section when in legacy mode.
258: * For some man.cgi scripts, "default" arch is none.
259: */
260:
1.26 kristaps 261: if (req->q.legacy && NULL != req->q.sec)
262: if (0 == strcmp(req->q.sec, "0"))
263: req->q.sec = NULL;
264: if (req->q.legacy && NULL != req->q.arch)
265: if (0 == strcmp(req->q.arch, "default"))
266: req->q.arch = NULL;
1.1 kristaps 267: }
268:
1.36 kristaps 269: static void
270: http_putchar(char c)
271: {
272:
273: if (isalnum((unsigned char)c)) {
274: putchar((unsigned char)c);
275: return;
276: } else if (' ' == c) {
277: putchar('+');
278: return;
279: }
280: printf("%%%.2x", c);
281: }
282:
1.1 kristaps 283: /*
1.6 kristaps 284: * HTTP-decode a string. The standard explanation is that this turns
285: * "%4e+foo" into "n foo" in the regular way. This is done in-place
286: * over the allocated string.
1.1 kristaps 287: */
288: static int
1.24 kristaps 289: http_decode(char *p)
1.1 kristaps 290: {
291: char hex[3];
292: int c;
293:
294: hex[2] = '\0';
295:
296: for ( ; '\0' != *p; p++) {
297: if ('%' == *p) {
298: if ('\0' == (hex[0] = *(p + 1)))
299: return(0);
300: if ('\0' == (hex[1] = *(p + 2)))
301: return(0);
302: if (1 != sscanf(hex, "%x", &c))
303: return(0);
304: if ('\0' == c)
305: return(0);
306:
307: *p = (char)c;
308: memmove(p + 1, p + 3, strlen(p + 3) + 1);
309: } else
310: *p = '+' == *p ? ' ' : *p;
311: }
312:
313: *p = '\0';
314: return(1);
315: }
316:
1.6 kristaps 317: static void
318: resp_begin_http(int code, const char *msg)
319: {
320:
321: if (200 != code)
322: printf("Status: %d %s\n", code, msg);
323:
1.20 kristaps 324: puts("Content-Type: text/html; charset=utf-8\n"
325: "Cache-Control: no-cache\n"
326: "Pragma: no-cache\n"
1.6 kristaps 327: "");
328:
329: fflush(stdout);
330: }
331:
332: static void
333: resp_begin_html(int code, const char *msg)
334: {
335:
336: resp_begin_http(code, msg);
337:
1.29 kristaps 338: printf("<!DOCTYPE HTML PUBLIC "
339: " \"-//W3C//DTD HTML 4.01//EN\""
340: " \"http://www.w3.org/TR/html4/strict.dtd\">\n"
341: "<HTML>\n"
342: "<HEAD>\n"
343: "<META HTTP-EQUIV=\"Content-Type\""
344: " CONTENT=\"text/html; charset=utf-8\">\n"
1.32 kristaps 345: "<LINK REL=\"stylesheet\" HREF=\"%s/man-cgi.css\""
346: " TYPE=\"text/css\" media=\"all\">\n"
347: "<LINK REL=\"stylesheet\" HREF=\"%s/man.css\""
1.29 kristaps 348: " TYPE=\"text/css\" media=\"all\">\n"
349: "<TITLE>System Manpage Reference</TITLE>\n"
350: "</HEAD>\n"
351: "<BODY>\n"
1.32 kristaps 352: "<!-- Begin page content. //-->\n", css, css);
1.6 kristaps 353: }
354:
355: static void
356: resp_end_html(void)
357: {
358:
1.20 kristaps 359: puts("</BODY>\n"
360: "</HTML>");
1.6 kristaps 361: }
362:
363: static void
364: resp_searchform(const struct req *req)
365: {
1.27 kristaps 366: int i;
1.13 kristaps 367:
1.6 kristaps 368: puts("<!-- Begin search form. //-->");
1.32 kristaps 369: printf("<DIV ID=\"mancgi\">\n"
1.52 schwarze 370: "<FORM ACTION=\"%s/search\" METHOD=\"get\">\n"
1.29 kristaps 371: "<FIELDSET>\n"
1.16 kristaps 372: "<LEGEND>Search Parameters</LEGEND>\n"
1.40 kristaps 373: "<INPUT TYPE=\"submit\" "
374: " VALUE=\"Search\"> for manuals satisfying \n"
1.29 kristaps 375: "<INPUT TYPE=\"text\" NAME=\"expr\" VALUE=\"",
376: progname);
1.24 kristaps 377: html_print(req->q.expr ? req->q.expr : "");
1.14 kristaps 378: printf("\">, section "
1.20 kristaps 379: "<INPUT TYPE=\"text\""
380: " SIZE=\"4\" NAME=\"sec\" VALUE=\"");
1.24 kristaps 381: html_print(req->q.sec ? req->q.sec : "");
1.14 kristaps 382: printf("\">, arch "
1.20 kristaps 383: "<INPUT TYPE=\"text\""
384: " SIZE=\"8\" NAME=\"arch\" VALUE=\"");
1.24 kristaps 385: html_print(req->q.arch ? req->q.arch : "");
1.27 kristaps 386: printf("\">");
387: if (req->psz > 1) {
388: puts(", <SELECT NAME=\"manpath\">");
389: for (i = 0; i < (int)req->psz; i++) {
1.52 schwarze 390: printf("<OPTION ");
391: if (NULL == req->q.manroot ? 0 == i :
392: 0 == strcmp(req->q.manroot, req->p[i]))
393: printf("SELECTED=\"selected\" ");
394: printf("VALUE=\"");
395: html_print(req->p[i]);
1.27 kristaps 396: printf("\">");
1.52 schwarze 397: html_print(req->p[i]);
1.27 kristaps 398: puts("</OPTION>");
399: }
400: puts("</SELECT>");
401: }
402: puts(".\n"
1.12 kristaps 403: "<INPUT TYPE=\"reset\" VALUE=\"Reset\">\n"
404: "</FIELDSET>\n"
1.32 kristaps 405: "</FORM>\n"
406: "</DIV>");
1.20 kristaps 407: puts("<!-- End search form. //-->");
1.6 kristaps 408: }
409:
410: static void
411: resp_index(const struct req *req)
412: {
413:
414: resp_begin_html(200, NULL);
415: resp_searchform(req);
416: resp_end_html();
417: }
418:
419: static void
1.10 kristaps 420: resp_error400(void)
1.9 kristaps 421: {
422:
1.10 kristaps 423: resp_begin_html(400, "Query Malformed");
1.12 kristaps 424: printf("<H1>Malformed Query</H1>\n"
425: "<P>\n"
1.20 kristaps 426: "The query your entered was malformed.\n"
427: "Try again from the\n"
1.22 kristaps 428: "<A HREF=\"%s/index.html\">main page</A>.\n"
1.12 kristaps 429: "</P>", progname);
1.9 kristaps 430: resp_end_html();
431: }
432:
433: static void
1.10 kristaps 434: resp_error404(const char *page)
1.6 kristaps 435: {
436:
437: resp_begin_html(404, "Not Found");
1.10 kristaps 438: puts("<H1>Page Not Found</H1>\n"
439: "<P>\n"
1.20 kristaps 440: "The page you're looking for, ");
441: printf("<B>");
1.10 kristaps 442: html_print(page);
1.12 kristaps 443: printf("</B>,\n"
1.20 kristaps 444: "could not be found.\n"
445: "Try searching from the\n"
1.22 kristaps 446: "<A HREF=\"%s/index.html\">main page</A>.\n"
1.12 kristaps 447: "</P>", progname);
1.6 kristaps 448: resp_end_html();
449: }
1.1 kristaps 450:
451: static void
1.7 kristaps 452: resp_bad(void)
453: {
454: resp_begin_html(500, "Internal Server Error");
455: puts("<P>Generic badness happened.</P>");
456: resp_end_html();
457: }
458:
459: static void
1.6 kristaps 460: resp_baddb(void)
1.1 kristaps 461: {
462:
1.6 kristaps 463: resp_begin_html(500, "Internal Server Error");
464: puts("<P>Your database is broken.</P>");
465: resp_end_html();
1.1 kristaps 466: }
467:
468: static void
1.52 schwarze 469: resp_search(const struct req *req, struct manpage *r, size_t sz)
1.1 kristaps 470: {
1.52 schwarze 471: size_t i;
1.19 kristaps 472:
1.52 schwarze 473: if (1 == sz) {
1.6 kristaps 474: /*
475: * If we have just one result, then jump there now
476: * without any delay.
477: */
478: puts("Status: 303 See Other");
1.52 schwarze 479: printf("Location: http://%s%s/show/%s/%s?",
480: host, progname, req->q.manroot, r[0].file);
1.36 kristaps 481: http_printquery(req);
482: puts("\n"
483: "Content-Type: text/html; charset=utf-8\n");
1.6 kristaps 484: return;
485: }
486:
1.12 kristaps 487: resp_begin_html(200, NULL);
1.19 kristaps 488: resp_searchform(req);
1.6 kristaps 489:
1.33 kristaps 490: puts("<DIV CLASS=\"results\">");
491:
1.52 schwarze 492: if (0 == sz) {
1.40 kristaps 493: puts("<P>\n"
494: "No results found.\n"
495: "</P>\n"
496: "</DIV>");
1.14 kristaps 497: resp_end_html();
498: return;
499: }
500:
1.52 schwarze 501: qsort(r, sz, sizeof(struct manpage), cmp);
1.41 kristaps 502:
1.33 kristaps 503: puts("<TABLE>");
1.1 kristaps 504:
1.41 kristaps 505: for (i = 0; i < sz; i++) {
1.20 kristaps 506: printf("<TR>\n"
507: "<TD CLASS=\"title\">\n"
1.52 schwarze 508: "<A HREF=\"%s/show/%s/%s?",
509: progname, req->q.manroot, r[i].file);
1.36 kristaps 510: html_printquery(req);
511: printf("\">");
1.52 schwarze 512: html_print(r[i].names);
513: printf("</A>\n"
1.20 kristaps 514: "</TD>\n"
515: "<TD CLASS=\"desc\">");
1.52 schwarze 516: html_print(r[i].output);
1.20 kristaps 517: puts("</TD>\n"
518: "</TR>");
1.1 kristaps 519: }
1.16 kristaps 520:
1.33 kristaps 521: puts("</TABLE>\n"
522: "</DIV>");
1.6 kristaps 523: resp_end_html();
524: }
525:
526: /* ARGSUSED */
527: static void
1.24 kristaps 528: pg_index(const struct req *req, char *path)
1.6 kristaps 529: {
530:
531: resp_index(req);
1.1 kristaps 532: }
533:
534: static void
1.32 kristaps 535: catman(const struct req *req, const char *file)
1.9 kristaps 536: {
1.10 kristaps 537: FILE *f;
538: size_t len;
539: int i;
540: char *p;
541: int italic, bold;
1.9 kristaps 542:
1.10 kristaps 543: if (NULL == (f = fopen(file, "r"))) {
1.9 kristaps 544: resp_baddb();
545: return;
546: }
547:
1.32 kristaps 548: resp_begin_html(200, NULL);
549: resp_searchform(req);
550: puts("<DIV CLASS=\"catman\">\n"
551: "<PRE>");
1.10 kristaps 552:
553: while (NULL != (p = fgetln(f, &len))) {
554: bold = italic = 0;
555: for (i = 0; i < (int)len - 1; i++) {
556: /*
557: * This means that the catpage is out of state.
558: * Ignore it and keep going (although the
559: * catpage is bogus).
560: */
561:
562: if ('\b' == p[i] || '\n' == p[i])
563: continue;
564:
565: /*
566: * Print a regular character.
567: * Close out any bold/italic scopes.
568: * If we're in back-space mode, make sure we'll
569: * have something to enter when we backspace.
570: */
571:
572: if ('\b' != p[i + 1]) {
573: if (italic)
574: printf("</I>");
575: if (bold)
576: printf("</B>");
577: italic = bold = 0;
578: html_putchar(p[i]);
579: continue;
580: } else if (i + 2 >= (int)len)
581: continue;
582:
583: /* Italic mode. */
584:
585: if ('_' == p[i]) {
586: if (bold)
587: printf("</B>");
588: if ( ! italic)
589: printf("<I>");
590: bold = 0;
591: italic = 1;
592: i += 2;
593: html_putchar(p[i]);
594: continue;
595: }
596:
597: /*
598: * Handle funny behaviour troff-isms.
599: * These grok'd from the original man2html.c.
600: */
601:
602: if (('+' == p[i] && 'o' == p[i + 2]) ||
603: ('o' == p[i] && '+' == p[i + 2]) ||
604: ('|' == 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: if (italic)
611: printf("</I>");
612: if (bold)
613: printf("</B>");
614: italic = bold = 0;
615: putchar('*');
616: i += 2;
617: continue;
618: } else if (('|' == p[i] && '-' == p[i + 2]) ||
619: ('-' == p[i] && '|' == p[i + 1]) ||
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: if (italic)
625: printf("</I>");
626: if (bold)
627: printf("</B>");
628: italic = bold = 0;
629: putchar('+');
630: i += 2;
631: continue;
632: }
633:
634: /* Bold mode. */
635:
636: if (italic)
637: printf("</I>");
638: if ( ! bold)
639: printf("<B>");
640: bold = 1;
641: italic = 0;
642: i += 2;
643: html_putchar(p[i]);
644: }
645:
646: /*
647: * Clean up the last character.
648: * We can get to a newline; don't print that.
649: */
1.9 kristaps 650:
1.10 kristaps 651: if (italic)
652: printf("</I>");
653: if (bold)
654: printf("</B>");
1.9 kristaps 655:
1.10 kristaps 656: if (i == (int)len - 1 && '\n' != p[i])
657: html_putchar(p[i]);
1.9 kristaps 658:
1.10 kristaps 659: putchar('\n');
660: }
661:
662: puts("</PRE>\n"
1.32 kristaps 663: "</DIV>\n"
1.10 kristaps 664: "</BODY>\n"
665: "</HTML>");
666:
667: fclose(f);
1.9 kristaps 668: }
669:
670: static void
1.32 kristaps 671: format(const struct req *req, const char *file)
1.7 kristaps 672: {
1.8 kristaps 673: struct mparse *mp;
674: int fd;
675: struct mdoc *mdoc;
676: struct man *man;
677: void *vp;
678: enum mandoclevel rc;
1.45 schwarze 679: char opts[PATH_MAX + 128];
1.7 kristaps 680:
1.8 kristaps 681: if (-1 == (fd = open(file, O_RDONLY, 0))) {
682: resp_baddb();
1.7 kristaps 683: return;
684: }
685:
1.48 schwarze 686: mp = mparse_alloc(MPARSE_SO, MANDOCLEVEL_FATAL, NULL, NULL);
1.8 kristaps 687: rc = mparse_readfd(mp, fd, file);
688: close(fd);
1.7 kristaps 689:
1.8 kristaps 690: if (rc >= MANDOCLEVEL_FATAL) {
1.7 kristaps 691: resp_baddb();
692: return;
693: }
694:
1.52 schwarze 695: snprintf(opts, sizeof(opts),
696: "fragment,man=%s/search?sec=%%S&expr=Nm~^%%N$",
697: progname);
1.10 kristaps 698:
1.49 schwarze 699: mparse_result(mp, &mdoc, &man, NULL);
1.32 kristaps 700: if (NULL == man && NULL == mdoc) {
701: resp_baddb();
702: mparse_free(mp);
703: return;
704: }
705:
706: resp_begin_html(200, NULL);
707: resp_searchform(req);
708:
1.10 kristaps 709: vp = html_alloc(opts);
1.7 kristaps 710:
1.32 kristaps 711: if (NULL != mdoc)
1.8 kristaps 712: html_mdoc(vp, mdoc);
1.32 kristaps 713: else
1.8 kristaps 714: html_man(vp, man);
1.32 kristaps 715:
716: puts("</BODY>\n"
717: "</HTML>");
1.7 kristaps 718:
1.8 kristaps 719: html_free(vp);
720: mparse_free(mp);
1.7 kristaps 721: }
722:
723: static void
1.24 kristaps 724: pg_show(const struct req *req, char *path)
1.1 kristaps 725: {
1.6 kristaps 726: char *sub;
1.25 kristaps 727:
728: if (NULL == path || NULL == (sub = strchr(path, '/'))) {
729: resp_error400();
730: return;
731: }
732: *sub++ = '\0';
1.6 kristaps 733:
1.24 kristaps 734: /*
1.26 kristaps 735: * Begin by chdir()ing into the manroot.
1.24 kristaps 736: * This way we can pick up the database files, which are
737: * relative to the manpath root.
738: */
739:
1.52 schwarze 740: if (-1 == chdir(path)) {
741: perror(path);
1.25 kristaps 742: resp_baddb();
1.24 kristaps 743: return;
744: }
745:
1.52 schwarze 746: if ('c' == *sub)
747: catman(req, sub);
748: else
749: format(req, sub);
1.6 kristaps 750: }
751:
752: static void
1.24 kristaps 753: pg_search(const struct req *req, char *path)
1.6 kristaps 754: {
1.52 schwarze 755: struct mansearch search;
756: struct manpaths paths;
757: struct manpage *res;
758: char **cp;
759: const char *ep, *start;
760: size_t ressz;
761: int i, sz;
1.6 kristaps 762:
763: /*
1.24 kristaps 764: * Begin by chdir()ing into the root of the manpath.
765: * This way we can pick up the database files, which are
766: * relative to the manpath root.
767: */
768:
1.52 schwarze 769: if (-1 == (chdir(req->q.manroot))) {
770: perror(req->q.manroot);
771: resp_search(req, NULL, 0);
1.24 kristaps 772: return;
773: }
774:
1.52 schwarze 775: search.arch = req->q.arch;
776: search.sec = req->q.sec;
777: search.deftype = TYPE_Nm | TYPE_Nd;
778: search.flags = 0;
779:
780: paths.sz = 1;
781: paths.paths = mandoc_malloc(sizeof(char *));
782: paths.paths[0] = mandoc_strdup(".");
1.24 kristaps 783:
784: /*
785: * Poor man's tokenisation: just break apart by spaces.
1.6 kristaps 786: * Yes, this is half-ass. But it works for now.
787: */
788:
1.52 schwarze 789: ep = req->q.expr;
1.6 kristaps 790: while (ep && isspace((unsigned char)*ep))
791: ep++;
792:
1.52 schwarze 793: sz = 0;
794: cp = NULL;
1.6 kristaps 795: while (ep && '\0' != *ep) {
1.51 schwarze 796: cp = mandoc_reallocarray(cp, sz + 1, sizeof(char *));
1.6 kristaps 797: start = ep;
798: while ('\0' != *ep && ! isspace((unsigned char)*ep))
799: ep++;
800: cp[sz] = mandoc_malloc((ep - start) + 1);
801: memcpy(cp[sz], start, ep - start);
802: cp[sz++][ep - start] = '\0';
803: while (isspace((unsigned char)*ep))
804: ep++;
805: }
806:
1.52 schwarze 807: if (mansearch(&search, &paths, sz, cp, "Nd", &res, &ressz))
808: resp_search(req, res, ressz);
809: else
1.6 kristaps 810: resp_baddb();
811:
812: for (i = 0; i < sz; i++)
813: free(cp[i]);
1.52 schwarze 814: free(cp);
815:
816: for (i = 0; i < (int)ressz; i++) {
817: free(res[i].file);
818: free(res[i].names);
819: free(res[i].output);
820: }
821: free(res);
1.6 kristaps 822:
1.52 schwarze 823: free(paths.paths[0]);
824: free(paths.paths);
1.1 kristaps 825: }
826:
827: int
828: main(void)
829: {
830: int i;
831: struct req req;
1.6 kristaps 832: char *p, *path, *subpath;
833:
1.24 kristaps 834: /* Scan our run-time environment. */
1.6 kristaps 835:
1.29 kristaps 836: if (NULL == (cache = getenv("CACHE_DIR")))
837: cache = "/cache/man.cgi";
838:
839: if (NULL == (progname = getenv("SCRIPT_NAME")))
1.6 kristaps 840: progname = "";
841:
1.29 kristaps 842: if (NULL == (css = getenv("CSS_DIR")))
1.31 kristaps 843: css = "";
1.7 kristaps 844:
1.29 kristaps 845: if (NULL == (host = getenv("HTTP_HOST")))
1.24 kristaps 846: host = "localhost";
847:
848: /*
849: * First we change directory into the cache directory so that
850: * subsequent scanning for manpath directories is rooted
851: * relative to the same position.
852: */
853:
1.8 kristaps 854: if (-1 == chdir(cache)) {
1.24 kristaps 855: perror(cache);
856: resp_bad();
857: return(EXIT_FAILURE);
858: }
859:
860: memset(&req, 0, sizeof(struct req));
1.54 ! schwarze 861: pathgen(&req);
1.1 kristaps 862:
1.24 kristaps 863: /* Next parse out the query string. */
1.1 kristaps 864:
865: if (NULL != (p = getenv("QUERY_STRING")))
1.26 kristaps 866: http_parse(&req, p);
1.1 kristaps 867:
1.24 kristaps 868: /*
869: * Now juggle paths to extract information.
870: * We want to extract our filetype (the file suffix), the
871: * initial path component, then the trailing component(s).
872: * Start with leading subpath component.
873: */
1.1 kristaps 874:
1.6 kristaps 875: subpath = path = NULL;
1.1 kristaps 876: req.page = PAGE__MAX;
877:
878: if (NULL == (path = getenv("PATH_INFO")) || '\0' == *path)
879: req.page = PAGE_INDEX;
1.6 kristaps 880:
1.1 kristaps 881: if (NULL != path && '/' == *path && '\0' == *++path)
882: req.page = PAGE_INDEX;
883:
1.6 kristaps 884: /* Resolve subpath component. */
1.1 kristaps 885:
886: if (NULL != path && NULL != (subpath = strchr(path, '/')))
1.6 kristaps 887: *subpath++ = '\0';
1.1 kristaps 888:
1.6 kristaps 889: /* Map path into one we recognise. */
1.1 kristaps 890:
891: if (NULL != path && '\0' != *path)
892: for (i = 0; i < (int)PAGE__MAX; i++)
893: if (0 == strcmp(pages[i], path)) {
894: req.page = (enum page)i;
895: break;
896: }
897:
1.6 kristaps 898: /* Route pages. */
899:
1.1 kristaps 900: switch (req.page) {
901: case (PAGE_INDEX):
1.24 kristaps 902: pg_index(&req, subpath);
1.1 kristaps 903: break;
904: case (PAGE_SEARCH):
1.24 kristaps 905: pg_search(&req, subpath);
1.6 kristaps 906: break;
907: case (PAGE_SHOW):
1.24 kristaps 908: pg_show(&req, subpath);
1.1 kristaps 909: break;
910: default:
1.10 kristaps 911: resp_error404(path);
1.1 kristaps 912: break;
913: }
914:
1.52 schwarze 915: for (i = 0; i < (int)req.psz; i++)
916: free(req.p[i]);
1.24 kristaps 917: free(req.p);
1.1 kristaps 918: return(EXIT_SUCCESS);
919: }
1.15 kristaps 920:
921: static int
922: cmp(const void *p1, const void *p2)
923: {
924:
1.52 schwarze 925: return(strcasecmp(((const struct manpage *)p1)->names,
926: ((const struct manpage *)p2)->names));
1.24 kristaps 927: }
928:
929: /*
930: * Scan for indexable paths.
931: */
932: static void
1.54 ! schwarze 933: pathgen(struct req *req)
1.24 kristaps 934: {
1.54 ! schwarze 935: FILE *fp;
! 936: char *dp;
! 937: size_t dpsz;
! 938:
! 939: if (NULL == (fp = fopen("manpath.conf", "r")))
! 940: return;
1.24 kristaps 941:
1.54 ! schwarze 942: while (NULL != (dp = fgetln(fp, &dpsz))) {
! 943: req->p = mandoc_realloc(req->p,
! 944: (req->psz + 1) * sizeof(char *));
! 945: req->p[req->psz++] = mandoc_strndup(dp, dpsz);
1.24 kristaps 946: }
947: }
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