Annotation of mandoc/cgi.c, Revision 1.65
1.65 ! schwarze 1: /* $Id: cgi.c,v 1.64 2014/07/12 01:55:30 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>
1.58 schwarze 23: #include <errno.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:
1.4 schwarze 31: #include "mandoc.h"
1.50 schwarze 32: #include "mandoc_aux.h"
1.8 kristaps 33: #include "main.h"
1.6 kristaps 34: #include "manpath.h"
1.52 schwarze 35: #include "mansearch.h"
1.1 kristaps 36:
37: enum page {
38: PAGE_INDEX,
39: PAGE_SEARCH,
1.6 kristaps 40: PAGE_SHOW,
1.1 kristaps 41: PAGE__MAX
42: };
43:
1.20 kristaps 44: /*
45: * A query as passed to the search function.
46: */
47: struct query {
1.58 schwarze 48: const char *manpath; /* desired manual directory */
1.20 kristaps 49: const char *arch; /* architecture */
50: const char *sec; /* manual section */
51: const char *expr; /* unparsed expression string */
1.65 ! schwarze 52: int equal; /* match whole names, not substrings */
1.20 kristaps 53: };
54:
1.1 kristaps 55: struct req {
1.58 schwarze 56: struct query q;
57: char **p; /* array of available manpaths */
58: size_t psz; /* number of available manpaths */
59: enum page page;
1.1 kristaps 60: };
61:
1.32 kristaps 62: static void catman(const struct req *, const char *);
1.15 kristaps 63: static int cmp(const void *, const void *);
1.32 kristaps 64: static void format(const struct req *, const char *);
1.6 kristaps 65: static void html_print(const char *);
1.36 kristaps 66: static void html_printquery(const struct req *);
1.10 kristaps 67: static void html_putchar(char);
1.24 kristaps 68: static int http_decode(char *);
1.26 kristaps 69: static void http_parse(struct req *, char *);
1.36 kristaps 70: static void http_print(const char *);
71: static void http_putchar(char);
72: static void http_printquery(const struct req *);
1.54 schwarze 73: static void pathgen(struct req *);
1.24 kristaps 74: static void pg_index(const struct req *, char *);
75: static void pg_search(const struct req *, char *);
76: static void pg_show(const struct req *, char *);
1.6 kristaps 77: static void resp_begin_html(int, const char *);
78: static void resp_begin_http(int, const char *);
79: static void resp_end_html(void);
1.59 schwarze 80: static void resp_error_badrequest(const char *);
81: static void resp_error_internal(void);
82: static void resp_error_notfound(const char *);
1.6 kristaps 83: static void resp_index(const struct req *);
1.59 schwarze 84: static void resp_noresult(const struct req *,
85: const char *);
1.52 schwarze 86: static void resp_search(const struct req *,
87: struct manpage *, size_t);
1.6 kristaps 88: static void resp_searchform(const struct req *);
89:
1.58 schwarze 90: static const char *scriptname; /* CGI script name */
91: static const char *mandir; /* contains all manpath directories */
92: static const char *cssdir; /* css directory */
93: static const char *httphost; /* hostname used in the URIs */
1.1 kristaps 94:
95: static const char * const pages[PAGE__MAX] = {
96: "index", /* PAGE_INDEX */
97: "search", /* PAGE_SEARCH */
1.6 kristaps 98: "show", /* PAGE_SHOW */
1.1 kristaps 99: };
100:
1.6 kristaps 101: /*
1.20 kristaps 102: * Print a character, escaping HTML along the way.
103: * This will pass non-ASCII straight to output: be warned!
104: */
1.10 kristaps 105: static void
106: html_putchar(char c)
107: {
108:
109: switch (c) {
110: case ('"'):
111: printf(""e;");
112: break;
113: case ('&'):
114: printf("&");
115: break;
116: case ('>'):
117: printf(">");
118: break;
119: case ('<'):
120: printf("<");
121: break;
122: default:
123: putchar((unsigned char)c);
124: break;
125: }
126: }
1.57 schwarze 127:
1.36 kristaps 128: static void
129: http_printquery(const struct req *req)
130: {
131:
1.58 schwarze 132: if (NULL != req->q.manpath) {
1.53 schwarze 133: printf("&manpath=");
1.58 schwarze 134: http_print(req->q.manpath);
1.53 schwarze 135: }
136: if (NULL != req->q.sec) {
137: printf("&sec=");
138: http_print(req->q.sec);
139: }
140: if (NULL != req->q.arch) {
141: printf("&arch=");
142: http_print(req->q.arch);
143: }
144: if (NULL != req->q.expr) {
1.65 ! schwarze 145: printf("&query=");
! 146: http_print(req->q.expr);
1.53 schwarze 147: }
1.65 ! schwarze 148: if (0 == req->q.equal)
! 149: printf("&apropos=1");
1.36 kristaps 150: }
151:
152: static void
153: html_printquery(const struct req *req)
154: {
155:
1.58 schwarze 156: if (NULL != req->q.manpath) {
1.53 schwarze 157: printf("&manpath=");
1.58 schwarze 158: html_print(req->q.manpath);
1.53 schwarze 159: }
160: if (NULL != req->q.sec) {
161: printf("&sec=");
162: html_print(req->q.sec);
163: }
164: if (NULL != req->q.arch) {
165: printf("&arch=");
166: html_print(req->q.arch);
167: }
168: if (NULL != req->q.expr) {
1.65 ! schwarze 169: printf("&query=");
1.63 schwarze 170: html_print(req->q.expr);
1.53 schwarze 171: }
1.65 ! schwarze 172: if (0 == req->q.equal)
! 173: printf("&apropos=1");
1.36 kristaps 174: }
175:
176: static void
177: http_print(const char *p)
178: {
179:
180: if (NULL == p)
181: return;
182: while ('\0' != *p)
183: http_putchar(*p++);
184: }
1.10 kristaps 185:
1.6 kristaps 186: /*
1.20 kristaps 187: * Call through to html_putchar().
188: * Accepts NULL strings.
1.6 kristaps 189: */
1.1 kristaps 190: static void
1.6 kristaps 191: html_print(const char *p)
1.1 kristaps 192: {
1.6 kristaps 193:
194: if (NULL == p)
195: return;
1.1 kristaps 196: while ('\0' != *p)
1.10 kristaps 197: html_putchar(*p++);
1.1 kristaps 198: }
199:
200: /*
201: * Parse out key-value pairs from an HTTP request variable.
1.6 kristaps 202: * This can be either a cookie or a POST/GET string, although man.cgi
203: * uses only GET for simplicity.
1.1 kristaps 204: */
205: static void
1.26 kristaps 206: http_parse(struct req *req, char *p)
1.1 kristaps 207: {
1.52 schwarze 208: char *key, *val;
1.1 kristaps 209:
1.26 kristaps 210: memset(&req->q, 0, sizeof(struct query));
1.58 schwarze 211: req->q.manpath = req->p[0];
1.65 ! schwarze 212: req->q.equal = 1;
1.24 kristaps 213:
1.36 kristaps 214: while ('\0' != *p) {
1.1 kristaps 215: key = p;
216: val = NULL;
217:
1.36 kristaps 218: p += (int)strcspn(p, ";&");
219: if ('\0' != *p)
1.1 kristaps 220: *p++ = '\0';
1.36 kristaps 221: if (NULL != (val = strchr(key, '=')))
222: *val++ = '\0';
1.1 kristaps 223:
1.36 kristaps 224: if ('\0' == *key || NULL == val || '\0' == *val)
1.1 kristaps 225: continue;
226:
227: /* Just abort handling. */
228:
1.24 kristaps 229: if ( ! http_decode(key))
230: break;
1.36 kristaps 231: if (NULL != val && ! http_decode(val))
1.24 kristaps 232: break;
233:
1.65 ! schwarze 234: if (0 == strcmp(key, "query"))
1.26 kristaps 235: req->q.expr = val;
236: else if (0 == strcmp(key, "manpath"))
1.58 schwarze 237: req->q.manpath = val;
1.24 kristaps 238: else if (0 == strcmp(key, "apropos"))
1.65 ! schwarze 239: req->q.equal = !strcmp(val, "0");
! 240: else if (0 == strcmp(key, "sec") ||
! 241: 0 == strcmp(key, "sektion")) {
! 242: if (strcmp(val, "0"))
! 243: req->q.sec = val;
! 244: } else if (0 == strcmp(key, "arch")) {
! 245: if (strcmp(val, "default"))
! 246: req->q.arch = val;
! 247: }
1.24 kristaps 248: }
1.1 kristaps 249: }
250:
1.36 kristaps 251: static void
252: http_putchar(char c)
253: {
254:
255: if (isalnum((unsigned char)c)) {
256: putchar((unsigned char)c);
257: return;
258: } else if (' ' == c) {
259: putchar('+');
260: return;
261: }
262: printf("%%%.2x", c);
263: }
264:
1.1 kristaps 265: /*
1.6 kristaps 266: * HTTP-decode a string. The standard explanation is that this turns
267: * "%4e+foo" into "n foo" in the regular way. This is done in-place
268: * over the allocated string.
1.1 kristaps 269: */
270: static int
1.24 kristaps 271: http_decode(char *p)
1.1 kristaps 272: {
273: char hex[3];
1.63 schwarze 274: char *q;
1.1 kristaps 275: int c;
276:
277: hex[2] = '\0';
278:
1.63 schwarze 279: q = p;
280: for ( ; '\0' != *p; p++, q++) {
1.1 kristaps 281: if ('%' == *p) {
282: if ('\0' == (hex[0] = *(p + 1)))
283: return(0);
284: if ('\0' == (hex[1] = *(p + 2)))
285: return(0);
286: if (1 != sscanf(hex, "%x", &c))
287: return(0);
288: if ('\0' == c)
289: return(0);
290:
1.63 schwarze 291: *q = (char)c;
292: p += 2;
1.1 kristaps 293: } else
1.63 schwarze 294: *q = '+' == *p ? ' ' : *p;
1.1 kristaps 295: }
296:
1.63 schwarze 297: *q = '\0';
1.1 kristaps 298: return(1);
299: }
300:
1.6 kristaps 301: static void
302: resp_begin_http(int code, const char *msg)
303: {
304:
305: if (200 != code)
1.62 schwarze 306: printf("Status: %d %s\r\n", code, msg);
1.6 kristaps 307:
1.62 schwarze 308: printf("Content-Type: text/html; charset=utf-8\r\n"
309: "Cache-Control: no-cache\r\n"
310: "Pragma: no-cache\r\n"
311: "\r\n");
1.6 kristaps 312:
313: fflush(stdout);
314: }
315:
316: static void
317: resp_begin_html(int code, const char *msg)
318: {
319:
320: resp_begin_http(code, msg);
321:
1.29 kristaps 322: printf("<!DOCTYPE HTML PUBLIC "
323: " \"-//W3C//DTD HTML 4.01//EN\""
324: " \"http://www.w3.org/TR/html4/strict.dtd\">\n"
325: "<HTML>\n"
326: "<HEAD>\n"
327: "<META HTTP-EQUIV=\"Content-Type\""
328: " CONTENT=\"text/html; charset=utf-8\">\n"
1.32 kristaps 329: "<LINK REL=\"stylesheet\" HREF=\"%s/man-cgi.css\""
330: " TYPE=\"text/css\" media=\"all\">\n"
331: "<LINK REL=\"stylesheet\" HREF=\"%s/man.css\""
1.29 kristaps 332: " TYPE=\"text/css\" media=\"all\">\n"
333: "<TITLE>System Manpage Reference</TITLE>\n"
334: "</HEAD>\n"
335: "<BODY>\n"
1.58 schwarze 336: "<!-- Begin page content. //-->\n",
337: cssdir, cssdir);
1.6 kristaps 338: }
339:
340: static void
341: resp_end_html(void)
342: {
343:
1.20 kristaps 344: puts("</BODY>\n"
345: "</HTML>");
1.6 kristaps 346: }
347:
348: static void
349: resp_searchform(const struct req *req)
350: {
1.27 kristaps 351: int i;
1.13 kristaps 352:
1.6 kristaps 353: puts("<!-- Begin search form. //-->");
1.32 kristaps 354: printf("<DIV ID=\"mancgi\">\n"
1.52 schwarze 355: "<FORM ACTION=\"%s/search\" METHOD=\"get\">\n"
1.29 kristaps 356: "<FIELDSET>\n"
1.16 kristaps 357: "<LEGEND>Search Parameters</LEGEND>\n"
1.65 ! schwarze 358: "<INPUT TYPE=\"submit\" VALUE=\"Search\"> "
! 359: "for manuals \n",
1.58 schwarze 360: scriptname);
1.65 ! schwarze 361: printf("<SELECT NAME=\"apropos\">\n"
! 362: "<OPTION VALUE=\"0\"");
! 363: if (req->q.equal)
! 364: printf(" SELECTED=\"selected\"");
! 365: printf(">named</OPTION>\n"
! 366: "<OPTION VALUE=\"1\"");
! 367: if (0 == req->q.equal)
! 368: printf(" SELECTED=\"selected\"");
! 369: printf(">matching</OPTION>\n"
! 370: "</SELECT>\n"
! 371: "<INPUT TYPE=\"text\" NAME=\"query\" VALUE=\"");
1.24 kristaps 372: html_print(req->q.expr ? req->q.expr : "");
1.14 kristaps 373: printf("\">, section "
1.20 kristaps 374: "<INPUT TYPE=\"text\""
375: " SIZE=\"4\" NAME=\"sec\" VALUE=\"");
1.24 kristaps 376: html_print(req->q.sec ? req->q.sec : "");
1.14 kristaps 377: printf("\">, arch "
1.20 kristaps 378: "<INPUT TYPE=\"text\""
379: " SIZE=\"8\" NAME=\"arch\" VALUE=\"");
1.24 kristaps 380: html_print(req->q.arch ? req->q.arch : "");
1.27 kristaps 381: printf("\">");
382: if (req->psz > 1) {
1.60 schwarze 383: puts(", in <SELECT NAME=\"manpath\">");
1.27 kristaps 384: for (i = 0; i < (int)req->psz; i++) {
1.52 schwarze 385: printf("<OPTION ");
1.58 schwarze 386: if (NULL == req->q.manpath ? 0 == i :
387: 0 == strcmp(req->q.manpath, req->p[i]))
1.52 schwarze 388: printf("SELECTED=\"selected\" ");
389: printf("VALUE=\"");
390: html_print(req->p[i]);
1.27 kristaps 391: printf("\">");
1.52 schwarze 392: html_print(req->p[i]);
1.27 kristaps 393: puts("</OPTION>");
394: }
395: puts("</SELECT>");
396: }
1.60 schwarze 397: puts("—\n"
1.12 kristaps 398: "<INPUT TYPE=\"reset\" VALUE=\"Reset\">\n"
399: "</FIELDSET>\n"
1.32 kristaps 400: "</FORM>\n"
401: "</DIV>");
1.20 kristaps 402: puts("<!-- End search form. //-->");
1.6 kristaps 403: }
404:
405: static void
406: resp_index(const struct req *req)
407: {
408:
409: resp_begin_html(200, NULL);
1.60 schwarze 410: puts("<H1>\n"
411: "Online manuals with "
412: "<A HREF=\"http://mdocml.bsd.lv/\">mandoc</A>\n"
413: "</H1>");
1.6 kristaps 414: resp_searchform(req);
1.64 schwarze 415: printf("<P>\n"
416: "This web interface is documented in the "
417: "<A HREF=\"%s/search?expr=Nm~^man\\.cgi$&sec=8\">"
418: "man.cgi</A> manual, and the "
419: "<A HREF=\"%s/search?expr=Nm~^apropos$&sec=1\">"
420: "apropos</A> manual explains the query syntax.\n"
421: "</P>\n",
422: scriptname, scriptname);
1.6 kristaps 423: resp_end_html();
424: }
425:
426: static void
1.59 schwarze 427: resp_noresult(const struct req *req, const char *msg)
428: {
429: resp_begin_html(200, NULL);
430: resp_searchform(req);
431: puts("<P>");
432: puts(msg);
433: puts("</P>");
434: resp_end_html();
435: }
436:
437: static void
438: resp_error_badrequest(const char *msg)
1.9 kristaps 439: {
440:
1.59 schwarze 441: resp_begin_html(400, "Bad Request");
442: puts("<H1>Bad Request</H1>\n"
443: "<P>\n");
444: puts(msg);
445: printf("Try again from the\n"
446: "<A HREF=\"%s\">main page</A>.\n"
1.58 schwarze 447: "</P>", scriptname);
1.9 kristaps 448: resp_end_html();
449: }
450:
451: static void
1.59 schwarze 452: resp_error_notfound(const char *page)
1.6 kristaps 453: {
454:
455: resp_begin_html(404, "Not Found");
1.10 kristaps 456: puts("<H1>Page Not Found</H1>\n"
457: "<P>\n"
1.20 kristaps 458: "The page you're looking for, ");
459: printf("<B>");
1.10 kristaps 460: html_print(page);
1.12 kristaps 461: printf("</B>,\n"
1.20 kristaps 462: "could not be found.\n"
463: "Try searching from the\n"
1.58 schwarze 464: "<A HREF=\"%s\">main page</A>.\n"
465: "</P>", scriptname);
1.6 kristaps 466: resp_end_html();
467: }
1.1 kristaps 468:
469: static void
1.59 schwarze 470: resp_error_internal(void)
1.7 kristaps 471: {
472: resp_begin_html(500, "Internal Server Error");
1.58 schwarze 473: puts("<P>Internal Server Error</P>");
1.7 kristaps 474: resp_end_html();
475: }
476:
477: static void
1.52 schwarze 478: resp_search(const struct req *req, struct manpage *r, size_t sz)
1.1 kristaps 479: {
1.52 schwarze 480: size_t i;
1.19 kristaps 481:
1.52 schwarze 482: if (1 == sz) {
1.6 kristaps 483: /*
484: * If we have just one result, then jump there now
485: * without any delay.
486: */
1.62 schwarze 487: printf("Status: 303 See Other\r\n");
1.52 schwarze 488: printf("Location: http://%s%s/show/%s/%s?",
1.58 schwarze 489: httphost, scriptname, req->q.manpath, r[0].file);
1.36 kristaps 490: http_printquery(req);
1.62 schwarze 491: printf("\r\n"
492: "Content-Type: text/html; charset=utf-8\r\n"
493: "\r\n");
1.6 kristaps 494: return;
495: }
496:
1.59 schwarze 497: qsort(r, sz, sizeof(struct manpage), cmp);
498:
1.12 kristaps 499: resp_begin_html(200, NULL);
1.19 kristaps 500: resp_searchform(req);
1.33 kristaps 501: puts("<DIV CLASS=\"results\">");
502: puts("<TABLE>");
1.1 kristaps 503:
1.41 kristaps 504: for (i = 0; i < sz; i++) {
1.20 kristaps 505: printf("<TR>\n"
506: "<TD CLASS=\"title\">\n"
1.52 schwarze 507: "<A HREF=\"%s/show/%s/%s?",
1.58 schwarze 508: scriptname, req->q.manpath, r[i].file);
1.36 kristaps 509: html_printquery(req);
510: printf("\">");
1.52 schwarze 511: html_print(r[i].names);
512: printf("</A>\n"
1.20 kristaps 513: "</TD>\n"
514: "<TD CLASS=\"desc\">");
1.52 schwarze 515: html_print(r[i].output);
1.20 kristaps 516: puts("</TD>\n"
517: "</TR>");
1.1 kristaps 518: }
1.16 kristaps 519:
1.33 kristaps 520: puts("</TABLE>\n"
521: "</DIV>");
1.6 kristaps 522: resp_end_html();
523: }
524:
525: /* ARGSUSED */
526: static void
1.24 kristaps 527: pg_index(const struct req *req, char *path)
1.6 kristaps 528: {
529:
530: resp_index(req);
1.1 kristaps 531: }
532:
533: static void
1.32 kristaps 534: catman(const struct req *req, const char *file)
1.9 kristaps 535: {
1.10 kristaps 536: FILE *f;
537: size_t len;
538: int i;
539: char *p;
540: int italic, bold;
1.9 kristaps 541:
1.10 kristaps 542: if (NULL == (f = fopen(file, "r"))) {
1.59 schwarze 543: resp_error_badrequest(
544: "You specified an invalid manual file.");
1.9 kristaps 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))) {
1.59 schwarze 682: resp_error_badrequest(
683: "You specified an invalid manual file.");
1.7 kristaps 684: return;
685: }
686:
1.56 schwarze 687: mp = mparse_alloc(MPARSE_SO, MANDOCLEVEL_FATAL, NULL,
1.58 schwarze 688: req->q.manpath);
1.8 kristaps 689: rc = mparse_readfd(mp, fd, file);
690: close(fd);
1.7 kristaps 691:
1.8 kristaps 692: if (rc >= MANDOCLEVEL_FATAL) {
1.59 schwarze 693: fprintf(stderr, "fatal mandoc error: %s/%s\n",
694: req->q.manpath, file);
695: resp_error_internal();
1.7 kristaps 696: return;
697: }
698:
1.52 schwarze 699: snprintf(opts, sizeof(opts),
700: "fragment,man=%s/search?sec=%%S&expr=Nm~^%%N$",
1.58 schwarze 701: scriptname);
1.10 kristaps 702:
1.49 schwarze 703: mparse_result(mp, &mdoc, &man, NULL);
1.32 kristaps 704: if (NULL == man && NULL == mdoc) {
1.59 schwarze 705: fprintf(stderr, "fatal mandoc error: %s/%s\n",
706: req->q.manpath, file);
707: resp_error_internal();
1.32 kristaps 708: mparse_free(mp);
709: return;
710: }
711:
712: resp_begin_html(200, NULL);
713: resp_searchform(req);
714:
1.10 kristaps 715: vp = html_alloc(opts);
1.7 kristaps 716:
1.32 kristaps 717: if (NULL != mdoc)
1.8 kristaps 718: html_mdoc(vp, mdoc);
1.32 kristaps 719: else
1.8 kristaps 720: html_man(vp, man);
1.32 kristaps 721:
722: puts("</BODY>\n"
723: "</HTML>");
1.7 kristaps 724:
1.8 kristaps 725: html_free(vp);
726: mparse_free(mp);
1.7 kristaps 727: }
728:
729: static void
1.24 kristaps 730: pg_show(const struct req *req, char *path)
1.1 kristaps 731: {
1.6 kristaps 732: char *sub;
1.25 kristaps 733:
734: if (NULL == path || NULL == (sub = strchr(path, '/'))) {
1.59 schwarze 735: resp_error_badrequest(
736: "You did not specify a page to show.");
1.25 kristaps 737: return;
738: }
739: *sub++ = '\0';
1.6 kristaps 740:
1.24 kristaps 741: /*
1.58 schwarze 742: * Begin by chdir()ing into the manpath.
1.24 kristaps 743: * This way we can pick up the database files, which are
744: * relative to the manpath root.
745: */
746:
1.52 schwarze 747: if (-1 == chdir(path)) {
1.59 schwarze 748: resp_error_badrequest(
749: "You specified an invalid manpath.");
1.24 kristaps 750: return;
751: }
752:
1.52 schwarze 753: if ('c' == *sub)
754: catman(req, sub);
755: else
756: format(req, sub);
1.6 kristaps 757: }
758:
759: static void
1.24 kristaps 760: pg_search(const struct req *req, char *path)
1.6 kristaps 761: {
1.52 schwarze 762: struct mansearch search;
763: struct manpaths paths;
764: struct manpage *res;
765: char **cp;
766: const char *ep, *start;
767: size_t ressz;
768: int i, sz;
1.6 kristaps 769:
770: /*
1.24 kristaps 771: * Begin by chdir()ing into the root of the manpath.
772: * This way we can pick up the database files, which are
773: * relative to the manpath root.
774: */
775:
1.58 schwarze 776: if (-1 == (chdir(req->q.manpath))) {
1.59 schwarze 777: resp_error_badrequest(
778: "You specified an invalid manpath.");
1.24 kristaps 779: return;
780: }
781:
1.52 schwarze 782: search.arch = req->q.arch;
783: search.sec = req->q.sec;
1.65 ! schwarze 784: search.deftype = req->q.equal ? TYPE_Nm : (TYPE_Nm | TYPE_Nd);
! 785: search.flags = req->q.equal ? MANSEARCH_MAN : 0;
1.52 schwarze 786:
787: paths.sz = 1;
788: paths.paths = mandoc_malloc(sizeof(char *));
789: paths.paths[0] = mandoc_strdup(".");
1.24 kristaps 790:
791: /*
792: * Poor man's tokenisation: just break apart by spaces.
1.6 kristaps 793: * Yes, this is half-ass. But it works for now.
794: */
795:
1.52 schwarze 796: ep = req->q.expr;
1.6 kristaps 797: while (ep && isspace((unsigned char)*ep))
798: ep++;
799:
1.52 schwarze 800: sz = 0;
801: cp = NULL;
1.6 kristaps 802: while (ep && '\0' != *ep) {
1.51 schwarze 803: cp = mandoc_reallocarray(cp, sz + 1, sizeof(char *));
1.6 kristaps 804: start = ep;
805: while ('\0' != *ep && ! isspace((unsigned char)*ep))
806: ep++;
807: cp[sz] = mandoc_malloc((ep - start) + 1);
808: memcpy(cp[sz], start, ep - start);
809: cp[sz++][ep - start] = '\0';
810: while (isspace((unsigned char)*ep))
811: ep++;
812: }
813:
1.59 schwarze 814: if (0 == mansearch(&search, &paths, sz, cp, "Nd", &res, &ressz))
815: resp_noresult(req, "You entered an invalid query.");
816: else if (0 == ressz)
817: resp_noresult(req, "No results found.");
818: else
1.52 schwarze 819: resp_search(req, res, ressz);
1.6 kristaps 820:
821: for (i = 0; i < sz; i++)
822: free(cp[i]);
1.52 schwarze 823: free(cp);
824:
825: for (i = 0; i < (int)ressz; i++) {
826: free(res[i].file);
827: free(res[i].names);
828: free(res[i].output);
829: }
830: free(res);
1.6 kristaps 831:
1.52 schwarze 832: free(paths.paths[0]);
833: free(paths.paths);
1.1 kristaps 834: }
835:
836: int
837: main(void)
838: {
839: int i;
840: struct req req;
1.58 schwarze 841: char *querystring, *path, *subpath;
1.6 kristaps 842:
1.24 kristaps 843: /* Scan our run-time environment. */
1.6 kristaps 844:
1.58 schwarze 845: if (NULL == (mandir = getenv("MAN_DIR")))
846: mandir = "/man";
1.29 kristaps 847:
1.58 schwarze 848: if (NULL == (scriptname = getenv("SCRIPT_NAME")))
849: scriptname = "";
1.6 kristaps 850:
1.58 schwarze 851: if (NULL == (cssdir = getenv("CSS_DIR")))
852: cssdir = "";
1.7 kristaps 853:
1.58 schwarze 854: if (NULL == (httphost = getenv("HTTP_HOST")))
855: httphost = "localhost";
1.24 kristaps 856:
857: /*
1.58 schwarze 858: * First we change directory into the mandir so that
1.24 kristaps 859: * subsequent scanning for manpath directories is rooted
860: * relative to the same position.
861: */
862:
1.58 schwarze 863: if (-1 == chdir(mandir)) {
864: fprintf(stderr, "MAN_DIR: %s: %s\n",
865: mandir, strerror(errno));
1.59 schwarze 866: resp_error_internal();
1.24 kristaps 867: return(EXIT_FAILURE);
868: }
869:
870: memset(&req, 0, sizeof(struct req));
1.54 schwarze 871: pathgen(&req);
1.1 kristaps 872:
1.24 kristaps 873: /* Next parse out the query string. */
1.1 kristaps 874:
1.58 schwarze 875: if (NULL != (querystring = getenv("QUERY_STRING")))
876: http_parse(&req, querystring);
1.1 kristaps 877:
1.24 kristaps 878: /*
879: * Now juggle paths to extract information.
880: * We want to extract our filetype (the file suffix), the
881: * initial path component, then the trailing component(s).
882: * Start with leading subpath component.
883: */
1.1 kristaps 884:
1.6 kristaps 885: subpath = path = NULL;
1.1 kristaps 886: req.page = PAGE__MAX;
887:
888: if (NULL == (path = getenv("PATH_INFO")) || '\0' == *path)
889: req.page = PAGE_INDEX;
1.6 kristaps 890:
1.1 kristaps 891: if (NULL != path && '/' == *path && '\0' == *++path)
892: req.page = PAGE_INDEX;
893:
1.6 kristaps 894: /* Resolve subpath component. */
1.1 kristaps 895:
896: if (NULL != path && NULL != (subpath = strchr(path, '/')))
1.6 kristaps 897: *subpath++ = '\0';
1.1 kristaps 898:
1.6 kristaps 899: /* Map path into one we recognise. */
1.1 kristaps 900:
901: if (NULL != path && '\0' != *path)
902: for (i = 0; i < (int)PAGE__MAX; i++)
903: if (0 == strcmp(pages[i], path)) {
904: req.page = (enum page)i;
905: break;
906: }
907:
1.6 kristaps 908: /* Route pages. */
909:
1.1 kristaps 910: switch (req.page) {
911: case (PAGE_INDEX):
1.24 kristaps 912: pg_index(&req, subpath);
1.1 kristaps 913: break;
914: case (PAGE_SEARCH):
1.24 kristaps 915: pg_search(&req, subpath);
1.6 kristaps 916: break;
917: case (PAGE_SHOW):
1.24 kristaps 918: pg_show(&req, subpath);
1.1 kristaps 919: break;
920: default:
1.59 schwarze 921: resp_error_notfound(path);
1.1 kristaps 922: break;
923: }
924:
1.52 schwarze 925: for (i = 0; i < (int)req.psz; i++)
926: free(req.p[i]);
1.24 kristaps 927: free(req.p);
1.1 kristaps 928: return(EXIT_SUCCESS);
929: }
1.15 kristaps 930:
931: static int
932: cmp(const void *p1, const void *p2)
933: {
934:
1.52 schwarze 935: return(strcasecmp(((const struct manpage *)p1)->names,
936: ((const struct manpage *)p2)->names));
1.24 kristaps 937: }
938:
939: /*
940: * Scan for indexable paths.
941: */
942: static void
1.54 schwarze 943: pathgen(struct req *req)
1.24 kristaps 944: {
1.54 schwarze 945: FILE *fp;
946: char *dp;
947: size_t dpsz;
948:
949: if (NULL == (fp = fopen("manpath.conf", "r")))
950: return;
1.24 kristaps 951:
1.54 schwarze 952: while (NULL != (dp = fgetln(fp, &dpsz))) {
1.55 schwarze 953: if ('\n' == dp[dpsz - 1])
954: dpsz--;
1.54 schwarze 955: req->p = mandoc_realloc(req->p,
956: (req->psz + 1) * sizeof(char *));
957: req->p[req->psz++] = mandoc_strndup(dp, dpsz);
1.24 kristaps 958: }
959: }
CVSweb
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to cgi.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [cvsweb.bsd.lv] / mandoc