Annotation of mandoc/cgi.c, Revision 1.67
1.67 ! schwarze 1: /* $Id: cgi.c,v 1.66 2014/07/12 17:21:45 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"
1.67 ! schwarze 36: #include "cgi.h"
1.1 kristaps 37:
1.20 kristaps 38: /*
39: * A query as passed to the search function.
40: */
41: struct query {
1.58 schwarze 42: const char *manpath; /* desired manual directory */
1.20 kristaps 43: const char *arch; /* architecture */
44: const char *sec; /* manual section */
45: const char *expr; /* unparsed expression string */
1.65 schwarze 46: int equal; /* match whole names, not substrings */
1.20 kristaps 47: };
48:
1.1 kristaps 49: struct req {
1.58 schwarze 50: struct query q;
51: char **p; /* array of available manpaths */
52: size_t psz; /* number of available manpaths */
1.1 kristaps 53: };
54:
1.32 kristaps 55: static void catman(const struct req *, const char *);
1.15 kristaps 56: static int cmp(const void *, const void *);
1.32 kristaps 57: static void format(const struct req *, const char *);
1.6 kristaps 58: static void html_print(const char *);
1.36 kristaps 59: static void html_printquery(const struct req *);
1.10 kristaps 60: static void html_putchar(char);
1.24 kristaps 61: static int http_decode(char *);
1.26 kristaps 62: static void http_parse(struct req *, char *);
1.36 kristaps 63: static void http_print(const char *);
64: static void http_putchar(char);
65: static void http_printquery(const struct req *);
1.54 schwarze 66: static void pathgen(struct req *);
1.66 schwarze 67: static void pg_search(const struct req *);
68: static void pg_show(const struct req *, const char *);
1.6 kristaps 69: static void resp_begin_html(int, const char *);
70: static void resp_begin_http(int, const char *);
71: static void resp_end_html(void);
1.59 schwarze 72: static void resp_error_badrequest(const char *);
73: static void resp_error_internal(void);
1.6 kristaps 74: static void resp_index(const struct req *);
1.59 schwarze 75: static void resp_noresult(const struct req *,
76: const char *);
1.52 schwarze 77: static void resp_search(const struct req *,
78: struct manpage *, size_t);
1.6 kristaps 79: static void resp_searchform(const struct req *);
80:
1.58 schwarze 81: static const char *scriptname; /* CGI script name */
82: static const char *httphost; /* hostname used in the URIs */
1.1 kristaps 83:
1.6 kristaps 84: /*
1.20 kristaps 85: * Print a character, escaping HTML along the way.
86: * This will pass non-ASCII straight to output: be warned!
87: */
1.10 kristaps 88: static void
89: html_putchar(char c)
90: {
91:
92: switch (c) {
93: case ('"'):
94: printf(""e;");
95: break;
96: case ('&'):
97: printf("&");
98: break;
99: case ('>'):
100: printf(">");
101: break;
102: case ('<'):
103: printf("<");
104: break;
105: default:
106: putchar((unsigned char)c);
107: break;
108: }
109: }
1.57 schwarze 110:
1.36 kristaps 111: static void
112: http_printquery(const struct req *req)
113: {
114:
1.58 schwarze 115: if (NULL != req->q.manpath) {
1.53 schwarze 116: printf("&manpath=");
1.58 schwarze 117: http_print(req->q.manpath);
1.53 schwarze 118: }
119: if (NULL != req->q.sec) {
120: printf("&sec=");
121: http_print(req->q.sec);
122: }
123: if (NULL != req->q.arch) {
124: printf("&arch=");
125: http_print(req->q.arch);
126: }
127: if (NULL != req->q.expr) {
1.65 schwarze 128: printf("&query=");
129: http_print(req->q.expr);
1.53 schwarze 130: }
1.65 schwarze 131: if (0 == req->q.equal)
132: printf("&apropos=1");
1.36 kristaps 133: }
134:
135: static void
136: html_printquery(const struct req *req)
137: {
138:
1.58 schwarze 139: if (NULL != req->q.manpath) {
1.53 schwarze 140: printf("&manpath=");
1.58 schwarze 141: html_print(req->q.manpath);
1.53 schwarze 142: }
143: if (NULL != req->q.sec) {
144: printf("&sec=");
145: html_print(req->q.sec);
146: }
147: if (NULL != req->q.arch) {
148: printf("&arch=");
149: html_print(req->q.arch);
150: }
151: if (NULL != req->q.expr) {
1.65 schwarze 152: printf("&query=");
1.63 schwarze 153: html_print(req->q.expr);
1.53 schwarze 154: }
1.65 schwarze 155: if (0 == req->q.equal)
156: printf("&apropos=1");
1.36 kristaps 157: }
158:
159: static void
160: http_print(const char *p)
161: {
162:
163: if (NULL == p)
164: return;
165: while ('\0' != *p)
166: http_putchar(*p++);
167: }
1.10 kristaps 168:
1.6 kristaps 169: /*
1.20 kristaps 170: * Call through to html_putchar().
171: * Accepts NULL strings.
1.6 kristaps 172: */
1.1 kristaps 173: static void
1.6 kristaps 174: html_print(const char *p)
1.1 kristaps 175: {
1.6 kristaps 176:
177: if (NULL == p)
178: return;
1.1 kristaps 179: while ('\0' != *p)
1.10 kristaps 180: html_putchar(*p++);
1.1 kristaps 181: }
182:
183: /*
184: * Parse out key-value pairs from an HTTP request variable.
1.6 kristaps 185: * This can be either a cookie or a POST/GET string, although man.cgi
186: * uses only GET for simplicity.
1.1 kristaps 187: */
188: static void
1.26 kristaps 189: http_parse(struct req *req, char *p)
1.1 kristaps 190: {
1.52 schwarze 191: char *key, *val;
1.1 kristaps 192:
1.26 kristaps 193: memset(&req->q, 0, sizeof(struct query));
1.58 schwarze 194: req->q.manpath = req->p[0];
1.65 schwarze 195: req->q.equal = 1;
1.24 kristaps 196:
1.36 kristaps 197: while ('\0' != *p) {
1.1 kristaps 198: key = p;
199: val = NULL;
200:
1.36 kristaps 201: p += (int)strcspn(p, ";&");
202: if ('\0' != *p)
1.1 kristaps 203: *p++ = '\0';
1.36 kristaps 204: if (NULL != (val = strchr(key, '=')))
205: *val++ = '\0';
1.1 kristaps 206:
1.36 kristaps 207: if ('\0' == *key || NULL == val || '\0' == *val)
1.1 kristaps 208: continue;
209:
210: /* Just abort handling. */
211:
1.24 kristaps 212: if ( ! http_decode(key))
213: break;
1.36 kristaps 214: if (NULL != val && ! http_decode(val))
1.24 kristaps 215: break;
216:
1.65 schwarze 217: if (0 == strcmp(key, "query"))
1.26 kristaps 218: req->q.expr = val;
219: else if (0 == strcmp(key, "manpath"))
1.58 schwarze 220: req->q.manpath = val;
1.24 kristaps 221: else if (0 == strcmp(key, "apropos"))
1.65 schwarze 222: req->q.equal = !strcmp(val, "0");
223: else if (0 == strcmp(key, "sec") ||
224: 0 == strcmp(key, "sektion")) {
225: if (strcmp(val, "0"))
226: req->q.sec = val;
227: } else if (0 == strcmp(key, "arch")) {
228: if (strcmp(val, "default"))
229: req->q.arch = val;
230: }
1.24 kristaps 231: }
1.1 kristaps 232: }
233:
1.36 kristaps 234: static void
235: http_putchar(char c)
236: {
237:
238: if (isalnum((unsigned char)c)) {
239: putchar((unsigned char)c);
240: return;
241: } else if (' ' == c) {
242: putchar('+');
243: return;
244: }
245: printf("%%%.2x", c);
246: }
247:
1.1 kristaps 248: /*
1.6 kristaps 249: * HTTP-decode a string. The standard explanation is that this turns
250: * "%4e+foo" into "n foo" in the regular way. This is done in-place
251: * over the allocated string.
1.1 kristaps 252: */
253: static int
1.24 kristaps 254: http_decode(char *p)
1.1 kristaps 255: {
256: char hex[3];
1.63 schwarze 257: char *q;
1.1 kristaps 258: int c;
259:
260: hex[2] = '\0';
261:
1.63 schwarze 262: q = p;
263: for ( ; '\0' != *p; p++, q++) {
1.1 kristaps 264: if ('%' == *p) {
265: if ('\0' == (hex[0] = *(p + 1)))
266: return(0);
267: if ('\0' == (hex[1] = *(p + 2)))
268: return(0);
269: if (1 != sscanf(hex, "%x", &c))
270: return(0);
271: if ('\0' == c)
272: return(0);
273:
1.63 schwarze 274: *q = (char)c;
275: p += 2;
1.1 kristaps 276: } else
1.63 schwarze 277: *q = '+' == *p ? ' ' : *p;
1.1 kristaps 278: }
279:
1.63 schwarze 280: *q = '\0';
1.1 kristaps 281: return(1);
282: }
283:
1.6 kristaps 284: static void
285: resp_begin_http(int code, const char *msg)
286: {
287:
288: if (200 != code)
1.62 schwarze 289: printf("Status: %d %s\r\n", code, msg);
1.6 kristaps 290:
1.62 schwarze 291: printf("Content-Type: text/html; charset=utf-8\r\n"
292: "Cache-Control: no-cache\r\n"
293: "Pragma: no-cache\r\n"
294: "\r\n");
1.6 kristaps 295:
296: fflush(stdout);
297: }
298:
299: static void
300: resp_begin_html(int code, const char *msg)
301: {
302:
303: resp_begin_http(code, msg);
304:
1.29 kristaps 305: printf("<!DOCTYPE HTML PUBLIC "
306: " \"-//W3C//DTD HTML 4.01//EN\""
307: " \"http://www.w3.org/TR/html4/strict.dtd\">\n"
308: "<HTML>\n"
309: "<HEAD>\n"
310: "<META HTTP-EQUIV=\"Content-Type\""
311: " CONTENT=\"text/html; charset=utf-8\">\n"
1.32 kristaps 312: "<LINK REL=\"stylesheet\" HREF=\"%s/man-cgi.css\""
313: " TYPE=\"text/css\" media=\"all\">\n"
314: "<LINK REL=\"stylesheet\" HREF=\"%s/man.css\""
1.29 kristaps 315: " TYPE=\"text/css\" media=\"all\">\n"
1.67 ! schwarze 316: "<TITLE>%s</TITLE>\n"
1.29 kristaps 317: "</HEAD>\n"
318: "<BODY>\n"
1.58 schwarze 319: "<!-- Begin page content. //-->\n",
1.67 ! schwarze 320: CSS_DIR, CSS_DIR, CUSTOMIZE_TITLE);
1.6 kristaps 321: }
322:
323: static void
324: resp_end_html(void)
325: {
326:
1.20 kristaps 327: puts("</BODY>\n"
328: "</HTML>");
1.6 kristaps 329: }
330:
331: static void
332: resp_searchform(const struct req *req)
333: {
1.27 kristaps 334: int i;
1.13 kristaps 335:
1.67 ! schwarze 336: puts(CUSTOMIZE_BEGIN);
1.6 kristaps 337: puts("<!-- Begin search form. //-->");
1.32 kristaps 338: printf("<DIV ID=\"mancgi\">\n"
1.66 schwarze 339: "<FORM ACTION=\"%s\" METHOD=\"get\">\n"
1.29 kristaps 340: "<FIELDSET>\n"
1.16 kristaps 341: "<LEGEND>Search Parameters</LEGEND>\n"
1.65 schwarze 342: "<INPUT TYPE=\"submit\" VALUE=\"Search\"> "
343: "for manuals \n",
1.58 schwarze 344: scriptname);
1.65 schwarze 345: printf("<SELECT NAME=\"apropos\">\n"
346: "<OPTION VALUE=\"0\"");
347: if (req->q.equal)
348: printf(" SELECTED=\"selected\"");
349: printf(">named</OPTION>\n"
350: "<OPTION VALUE=\"1\"");
351: if (0 == req->q.equal)
352: printf(" SELECTED=\"selected\"");
353: printf(">matching</OPTION>\n"
354: "</SELECT>\n"
355: "<INPUT TYPE=\"text\" NAME=\"query\" VALUE=\"");
1.24 kristaps 356: html_print(req->q.expr ? req->q.expr : "");
1.14 kristaps 357: printf("\">, section "
1.20 kristaps 358: "<INPUT TYPE=\"text\""
359: " SIZE=\"4\" NAME=\"sec\" VALUE=\"");
1.24 kristaps 360: html_print(req->q.sec ? req->q.sec : "");
1.14 kristaps 361: printf("\">, arch "
1.20 kristaps 362: "<INPUT TYPE=\"text\""
363: " SIZE=\"8\" NAME=\"arch\" VALUE=\"");
1.24 kristaps 364: html_print(req->q.arch ? req->q.arch : "");
1.27 kristaps 365: printf("\">");
366: if (req->psz > 1) {
1.60 schwarze 367: puts(", in <SELECT NAME=\"manpath\">");
1.27 kristaps 368: for (i = 0; i < (int)req->psz; i++) {
1.52 schwarze 369: printf("<OPTION ");
1.58 schwarze 370: if (NULL == req->q.manpath ? 0 == i :
371: 0 == strcmp(req->q.manpath, req->p[i]))
1.52 schwarze 372: printf("SELECTED=\"selected\" ");
373: printf("VALUE=\"");
374: html_print(req->p[i]);
1.27 kristaps 375: printf("\">");
1.52 schwarze 376: html_print(req->p[i]);
1.27 kristaps 377: puts("</OPTION>");
378: }
379: puts("</SELECT>");
380: }
1.60 schwarze 381: puts("—\n"
1.12 kristaps 382: "<INPUT TYPE=\"reset\" VALUE=\"Reset\">\n"
383: "</FIELDSET>\n"
1.32 kristaps 384: "</FORM>\n"
385: "</DIV>");
1.20 kristaps 386: puts("<!-- End search form. //-->");
1.6 kristaps 387: }
388:
389: static void
390: resp_index(const struct req *req)
391: {
392:
393: resp_begin_html(200, NULL);
394: resp_searchform(req);
1.64 schwarze 395: printf("<P>\n"
396: "This web interface is documented in the "
1.66 schwarze 397: "<A HREF=\"%s?query=man.cgi&sec=8\">"
1.64 schwarze 398: "man.cgi</A> manual, and the "
1.66 schwarze 399: "<A HREF=\"%s?query=apropos&sec=1\">"
1.64 schwarze 400: "apropos</A> manual explains the query syntax.\n"
401: "</P>\n",
402: scriptname, scriptname);
1.6 kristaps 403: resp_end_html();
404: }
405:
406: static void
1.59 schwarze 407: resp_noresult(const struct req *req, const char *msg)
408: {
409: resp_begin_html(200, NULL);
410: resp_searchform(req);
411: puts("<P>");
412: puts(msg);
413: puts("</P>");
414: resp_end_html();
415: }
416:
417: static void
418: resp_error_badrequest(const char *msg)
1.9 kristaps 419: {
420:
1.59 schwarze 421: resp_begin_html(400, "Bad Request");
422: puts("<H1>Bad Request</H1>\n"
423: "<P>\n");
424: puts(msg);
425: printf("Try again from the\n"
426: "<A HREF=\"%s\">main page</A>.\n"
1.58 schwarze 427: "</P>", scriptname);
1.9 kristaps 428: resp_end_html();
429: }
430:
431: static void
1.59 schwarze 432: resp_error_internal(void)
1.7 kristaps 433: {
434: resp_begin_html(500, "Internal Server Error");
1.58 schwarze 435: puts("<P>Internal Server Error</P>");
1.7 kristaps 436: resp_end_html();
437: }
438:
439: static void
1.52 schwarze 440: resp_search(const struct req *req, struct manpage *r, size_t sz)
1.1 kristaps 441: {
1.52 schwarze 442: size_t i;
1.19 kristaps 443:
1.52 schwarze 444: if (1 == sz) {
1.6 kristaps 445: /*
446: * If we have just one result, then jump there now
447: * without any delay.
448: */
1.62 schwarze 449: printf("Status: 303 See Other\r\n");
1.66 schwarze 450: printf("Location: http://%s%s/%s/%s?",
1.58 schwarze 451: httphost, scriptname, req->q.manpath, r[0].file);
1.36 kristaps 452: http_printquery(req);
1.62 schwarze 453: printf("\r\n"
454: "Content-Type: text/html; charset=utf-8\r\n"
455: "\r\n");
1.6 kristaps 456: return;
457: }
458:
1.59 schwarze 459: qsort(r, sz, sizeof(struct manpage), cmp);
460:
1.12 kristaps 461: resp_begin_html(200, NULL);
1.19 kristaps 462: resp_searchform(req);
1.33 kristaps 463: puts("<DIV CLASS=\"results\">");
464: puts("<TABLE>");
1.1 kristaps 465:
1.41 kristaps 466: for (i = 0; i < sz; i++) {
1.20 kristaps 467: printf("<TR>\n"
468: "<TD CLASS=\"title\">\n"
1.66 schwarze 469: "<A HREF=\"%s/%s/%s?",
1.58 schwarze 470: scriptname, req->q.manpath, r[i].file);
1.36 kristaps 471: html_printquery(req);
472: printf("\">");
1.52 schwarze 473: html_print(r[i].names);
474: printf("</A>\n"
1.20 kristaps 475: "</TD>\n"
476: "<TD CLASS=\"desc\">");
1.52 schwarze 477: html_print(r[i].output);
1.20 kristaps 478: puts("</TD>\n"
479: "</TR>");
1.1 kristaps 480: }
1.16 kristaps 481:
1.33 kristaps 482: puts("</TABLE>\n"
483: "</DIV>");
1.6 kristaps 484: resp_end_html();
485: }
486:
1.1 kristaps 487: static void
1.32 kristaps 488: catman(const struct req *req, const char *file)
1.9 kristaps 489: {
1.10 kristaps 490: FILE *f;
491: size_t len;
492: int i;
493: char *p;
494: int italic, bold;
1.9 kristaps 495:
1.10 kristaps 496: if (NULL == (f = fopen(file, "r"))) {
1.59 schwarze 497: resp_error_badrequest(
498: "You specified an invalid manual file.");
1.9 kristaps 499: return;
500: }
501:
1.32 kristaps 502: resp_begin_html(200, NULL);
503: resp_searchform(req);
504: puts("<DIV CLASS=\"catman\">\n"
505: "<PRE>");
1.10 kristaps 506:
507: while (NULL != (p = fgetln(f, &len))) {
508: bold = italic = 0;
509: for (i = 0; i < (int)len - 1; i++) {
510: /*
511: * This means that the catpage is out of state.
512: * Ignore it and keep going (although the
513: * catpage is bogus).
514: */
515:
516: if ('\b' == p[i] || '\n' == p[i])
517: continue;
518:
519: /*
520: * Print a regular character.
521: * Close out any bold/italic scopes.
522: * If we're in back-space mode, make sure we'll
523: * have something to enter when we backspace.
524: */
525:
526: if ('\b' != p[i + 1]) {
527: if (italic)
528: printf("</I>");
529: if (bold)
530: printf("</B>");
531: italic = bold = 0;
532: html_putchar(p[i]);
533: continue;
534: } else if (i + 2 >= (int)len)
535: continue;
536:
537: /* Italic mode. */
538:
539: if ('_' == p[i]) {
540: if (bold)
541: printf("</B>");
542: if ( ! italic)
543: printf("<I>");
544: bold = 0;
545: italic = 1;
546: i += 2;
547: html_putchar(p[i]);
548: continue;
549: }
550:
551: /*
552: * Handle funny behaviour troff-isms.
553: * These grok'd from the original man2html.c.
554: */
555:
556: if (('+' == p[i] && 'o' == p[i + 2]) ||
557: ('o' == p[i] && '+' == p[i + 2]) ||
558: ('|' == p[i] && '=' == p[i + 2]) ||
559: ('=' == p[i] && '|' == p[i + 2]) ||
560: ('*' == p[i] && '=' == p[i + 2]) ||
561: ('=' == p[i] && '*' == p[i + 2]) ||
562: ('*' == p[i] && '|' == p[i + 2]) ||
563: ('|' == p[i] && '*' == p[i + 2])) {
564: if (italic)
565: printf("</I>");
566: if (bold)
567: printf("</B>");
568: italic = bold = 0;
569: putchar('*');
570: i += 2;
571: continue;
572: } else if (('|' == p[i] && '-' == p[i + 2]) ||
573: ('-' == p[i] && '|' == p[i + 1]) ||
574: ('+' == p[i] && '-' == p[i + 1]) ||
575: ('-' == p[i] && '+' == p[i + 1]) ||
576: ('+' == p[i] && '|' == p[i + 1]) ||
577: ('|' == p[i] && '+' == p[i + 1])) {
578: if (italic)
579: printf("</I>");
580: if (bold)
581: printf("</B>");
582: italic = bold = 0;
583: putchar('+');
584: i += 2;
585: continue;
586: }
587:
588: /* Bold mode. */
589:
590: if (italic)
591: printf("</I>");
592: if ( ! bold)
593: printf("<B>");
594: bold = 1;
595: italic = 0;
596: i += 2;
597: html_putchar(p[i]);
598: }
599:
600: /*
601: * Clean up the last character.
602: * We can get to a newline; don't print that.
603: */
1.9 kristaps 604:
1.10 kristaps 605: if (italic)
606: printf("</I>");
607: if (bold)
608: printf("</B>");
1.9 kristaps 609:
1.10 kristaps 610: if (i == (int)len - 1 && '\n' != p[i])
611: html_putchar(p[i]);
1.9 kristaps 612:
1.10 kristaps 613: putchar('\n');
614: }
615:
616: puts("</PRE>\n"
1.32 kristaps 617: "</DIV>\n"
1.10 kristaps 618: "</BODY>\n"
619: "</HTML>");
620:
621: fclose(f);
1.9 kristaps 622: }
623:
624: static void
1.32 kristaps 625: format(const struct req *req, const char *file)
1.7 kristaps 626: {
1.8 kristaps 627: struct mparse *mp;
628: int fd;
629: struct mdoc *mdoc;
630: struct man *man;
631: void *vp;
632: enum mandoclevel rc;
1.45 schwarze 633: char opts[PATH_MAX + 128];
1.7 kristaps 634:
1.8 kristaps 635: if (-1 == (fd = open(file, O_RDONLY, 0))) {
1.59 schwarze 636: resp_error_badrequest(
637: "You specified an invalid manual file.");
1.7 kristaps 638: return;
639: }
640:
1.56 schwarze 641: mp = mparse_alloc(MPARSE_SO, MANDOCLEVEL_FATAL, NULL,
1.58 schwarze 642: req->q.manpath);
1.8 kristaps 643: rc = mparse_readfd(mp, fd, file);
644: close(fd);
1.7 kristaps 645:
1.8 kristaps 646: if (rc >= MANDOCLEVEL_FATAL) {
1.59 schwarze 647: fprintf(stderr, "fatal mandoc error: %s/%s\n",
648: req->q.manpath, file);
649: resp_error_internal();
1.7 kristaps 650: return;
651: }
652:
1.52 schwarze 653: snprintf(opts, sizeof(opts),
1.66 schwarze 654: "fragment,man=%s?query=%%N&sec=%%S",
1.58 schwarze 655: scriptname);
1.10 kristaps 656:
1.49 schwarze 657: mparse_result(mp, &mdoc, &man, NULL);
1.32 kristaps 658: if (NULL == man && NULL == mdoc) {
1.59 schwarze 659: fprintf(stderr, "fatal mandoc error: %s/%s\n",
660: req->q.manpath, file);
661: resp_error_internal();
1.32 kristaps 662: mparse_free(mp);
663: return;
664: }
665:
666: resp_begin_html(200, NULL);
667: resp_searchform(req);
668:
1.10 kristaps 669: vp = html_alloc(opts);
1.7 kristaps 670:
1.32 kristaps 671: if (NULL != mdoc)
1.8 kristaps 672: html_mdoc(vp, mdoc);
1.32 kristaps 673: else
1.8 kristaps 674: html_man(vp, man);
1.32 kristaps 675:
676: puts("</BODY>\n"
677: "</HTML>");
1.7 kristaps 678:
1.8 kristaps 679: html_free(vp);
680: mparse_free(mp);
1.7 kristaps 681: }
682:
683: static void
1.66 schwarze 684: pg_show(const struct req *req, const char *path)
1.1 kristaps 685: {
1.6 kristaps 686: char *sub;
1.25 kristaps 687:
688: if (NULL == path || NULL == (sub = strchr(path, '/'))) {
1.59 schwarze 689: resp_error_badrequest(
690: "You did not specify a page to show.");
1.25 kristaps 691: return;
692: }
693: *sub++ = '\0';
1.6 kristaps 694:
1.24 kristaps 695: /*
1.58 schwarze 696: * Begin by chdir()ing into the manpath.
1.24 kristaps 697: * This way we can pick up the database files, which are
698: * relative to the manpath root.
699: */
700:
1.52 schwarze 701: if (-1 == chdir(path)) {
1.59 schwarze 702: resp_error_badrequest(
703: "You specified an invalid manpath.");
1.24 kristaps 704: return;
705: }
706:
1.52 schwarze 707: if ('c' == *sub)
708: catman(req, sub);
709: else
710: format(req, sub);
1.6 kristaps 711: }
712:
713: static void
1.66 schwarze 714: pg_search(const struct req *req)
1.6 kristaps 715: {
1.52 schwarze 716: struct mansearch search;
717: struct manpaths paths;
718: struct manpage *res;
719: char **cp;
720: const char *ep, *start;
721: size_t ressz;
722: int i, sz;
1.6 kristaps 723:
724: /*
1.24 kristaps 725: * Begin by chdir()ing into the root of the manpath.
726: * This way we can pick up the database files, which are
727: * relative to the manpath root.
728: */
729:
1.58 schwarze 730: if (-1 == (chdir(req->q.manpath))) {
1.59 schwarze 731: resp_error_badrequest(
732: "You specified an invalid manpath.");
1.24 kristaps 733: return;
734: }
735:
1.52 schwarze 736: search.arch = req->q.arch;
737: search.sec = req->q.sec;
1.65 schwarze 738: search.deftype = req->q.equal ? TYPE_Nm : (TYPE_Nm | TYPE_Nd);
739: search.flags = req->q.equal ? MANSEARCH_MAN : 0;
1.52 schwarze 740:
741: paths.sz = 1;
742: paths.paths = mandoc_malloc(sizeof(char *));
743: paths.paths[0] = mandoc_strdup(".");
1.24 kristaps 744:
745: /*
746: * Poor man's tokenisation: just break apart by spaces.
1.6 kristaps 747: * Yes, this is half-ass. But it works for now.
748: */
749:
1.52 schwarze 750: ep = req->q.expr;
1.6 kristaps 751: while (ep && isspace((unsigned char)*ep))
752: ep++;
753:
1.52 schwarze 754: sz = 0;
755: cp = NULL;
1.6 kristaps 756: while (ep && '\0' != *ep) {
1.51 schwarze 757: cp = mandoc_reallocarray(cp, sz + 1, sizeof(char *));
1.6 kristaps 758: start = ep;
759: while ('\0' != *ep && ! isspace((unsigned char)*ep))
760: ep++;
761: cp[sz] = mandoc_malloc((ep - start) + 1);
762: memcpy(cp[sz], start, ep - start);
763: cp[sz++][ep - start] = '\0';
764: while (isspace((unsigned char)*ep))
765: ep++;
766: }
767:
1.59 schwarze 768: if (0 == mansearch(&search, &paths, sz, cp, "Nd", &res, &ressz))
769: resp_noresult(req, "You entered an invalid query.");
770: else if (0 == ressz)
771: resp_noresult(req, "No results found.");
772: else
1.52 schwarze 773: resp_search(req, res, ressz);
1.6 kristaps 774:
775: for (i = 0; i < sz; i++)
776: free(cp[i]);
1.52 schwarze 777: free(cp);
778:
779: for (i = 0; i < (int)ressz; i++) {
780: free(res[i].file);
781: free(res[i].names);
782: free(res[i].output);
783: }
784: free(res);
1.6 kristaps 785:
1.52 schwarze 786: free(paths.paths[0]);
787: free(paths.paths);
1.1 kristaps 788: }
789:
790: int
791: main(void)
792: {
1.66 schwarze 793: struct req req;
794: const char *path;
795: char *querystring;
1.1 kristaps 796: int i;
1.6 kristaps 797:
1.24 kristaps 798: /* Scan our run-time environment. */
1.6 kristaps 799:
1.58 schwarze 800: if (NULL == (scriptname = getenv("SCRIPT_NAME")))
801: scriptname = "";
1.6 kristaps 802:
1.58 schwarze 803: if (NULL == (httphost = getenv("HTTP_HOST")))
804: httphost = "localhost";
1.24 kristaps 805:
806: /*
1.67 ! schwarze 807: * First we change directory into the MAN_DIR so that
1.24 kristaps 808: * subsequent scanning for manpath directories is rooted
809: * relative to the same position.
810: */
811:
1.67 ! schwarze 812: if (-1 == chdir(MAN_DIR)) {
1.58 schwarze 813: fprintf(stderr, "MAN_DIR: %s: %s\n",
1.67 ! schwarze 814: MAN_DIR, strerror(errno));
1.59 schwarze 815: resp_error_internal();
1.24 kristaps 816: return(EXIT_FAILURE);
817: }
818:
819: memset(&req, 0, sizeof(struct req));
1.54 schwarze 820: pathgen(&req);
1.1 kristaps 821:
1.24 kristaps 822: /* Next parse out the query string. */
1.1 kristaps 823:
1.58 schwarze 824: if (NULL != (querystring = getenv("QUERY_STRING")))
825: http_parse(&req, querystring);
1.1 kristaps 826:
1.66 schwarze 827: /* Dispatch to the three different pages. */
1.1 kristaps 828:
1.66 schwarze 829: path = getenv("PATH_INFO");
830: if (NULL == path)
831: path = "";
832: else if ('/' == *path)
833: path++;
834:
835: if ('\0' != *path)
836: pg_show(&req, path);
837: else if (NULL != req.q.expr)
838: pg_search(&req);
839: else
840: resp_index(&req);
1.1 kristaps 841:
1.52 schwarze 842: for (i = 0; i < (int)req.psz; i++)
843: free(req.p[i]);
1.24 kristaps 844: free(req.p);
1.1 kristaps 845: return(EXIT_SUCCESS);
846: }
1.15 kristaps 847:
848: static int
849: cmp(const void *p1, const void *p2)
850: {
851:
1.52 schwarze 852: return(strcasecmp(((const struct manpage *)p1)->names,
853: ((const struct manpage *)p2)->names));
1.24 kristaps 854: }
855:
856: /*
857: * Scan for indexable paths.
858: */
859: static void
1.54 schwarze 860: pathgen(struct req *req)
1.24 kristaps 861: {
1.54 schwarze 862: FILE *fp;
863: char *dp;
864: size_t dpsz;
865:
866: if (NULL == (fp = fopen("manpath.conf", "r")))
867: return;
1.24 kristaps 868:
1.54 schwarze 869: while (NULL != (dp = fgetln(fp, &dpsz))) {
1.55 schwarze 870: if ('\n' == dp[dpsz - 1])
871: dpsz--;
1.54 schwarze 872: req->p = mandoc_realloc(req->p,
873: (req->psz + 1) * sizeof(char *));
874: req->p[req->psz++] = mandoc_strndup(dp, dpsz);
1.24 kristaps 875: }
876: }
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