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- /* ====================================================================
- * Copyright (c) 1995-1997 The Apache Group. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission.
- *
- * 5. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
- * IT'S CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
- /*
- * This imagemap module started as a port of the original imagemap.c
- * written by Rob McCool (11/13/93 robm@ncsa.uiuc.edu).
- * This version includes the mapping algorithms found in version 1.3
- * of imagemap.c.
- *
- * Contributors to this code include:
- *
- * Kevin Hughes, kevinh@pulua.hcc.hawaii.edu
- *
- * Eric Haines, erich@eye.com
- * "macmartinized" polygon code copyright 1992 by Eric Haines, erich@eye.com
- *
- * Randy Terbush, randy@zyzzyva.com
- * port to Apache module format, "base_uri" and support for relative URLs
- *
- * James H. Cloos, Jr., cloos@jhcloos.com
- * Added point datatype, using code in NCSA's version 1.8 imagemap.c
- * program, as distributed with version 1.4.1 of their server.
- * The point code is originally added by Craig Milo Rogers, Rogers@ISI.Edu
- *
- * Nathan Kurz, nate@tripod.com
- * Rewrite/reorganization. New handling of default, base and relative URLs.
- * New Configuration directives:
- * ImapMenu {none, formatted, semiformatted, unformatted}
- * ImapDefault {error, nocontent, referer, menu, URL}
- * ImapBase {map, referer, URL}
- * Support for creating non-graphical menu added. (backwards compatible):
- * Old: directive URL [x,y ...]
- * New: directive URL "Menu text" [x,y ...]
- * or: directive URL x,y ... "Menu text"
- * Map format and menu concept courtesy Joshua Bell, jsbell@acs.ucalgary.ca.
- *
- * Mark Cox, mark@ukweb.com, Allow relative URLs even when no base specified
- *
- * Tim Baverstock, warwick@mmm.co.uk, Interpreted <AREA> tags to .map format.
- * Added phantom .map file support and <MAP NAME=""> support.
- * Refer to index.html.map to read index.html's first <MAP></MAP> element.
- * Refer to index.html.something.map to read <MAP NAME="something"></MAP>
- */
-
- #include "httpd.h"
- #include "http_config.h"
- #include "http_request.h"
- #include "http_core.h"
- #include "http_protocol.h"
- #include "http_main.h"
- #include "http_log.h"
- #include "util_script.h"
-
- #define IMAP_MAGIC_TYPE "application/x-httpd-imap"
- #define LARGEBUF 500
- #define SMALLBUF 256
- #define MAXVERTS 100
- #define X 0
- #define Y 1
-
- #define IMAP_MENU_DEFAULT "formatted"
- #define IMAP_DEFAULT_DEFAULT "nocontent"
- #define IMAP_BASE_DEFAULT "map"
-
- #ifdef SUNOS4
- double strtod(); /* SunOS needed this */
- #endif
-
- module imap_module;
-
- typedef struct {
- char *imap_menu;
- char *imap_default;
- char *imap_base;
- } imap_conf_rec;
-
- void *create_imap_dir_config (pool *p, char *dummy) {
- imap_conf_rec *icr =
- (imap_conf_rec *)palloc(p, sizeof(imap_conf_rec));
-
- icr->imap_menu = NULL;
- icr->imap_default = NULL;
- icr->imap_base = NULL;
-
- return icr;
- }
-
- void *merge_imap_dir_configs (pool *p, void *basev, void *addv)
- {
- imap_conf_rec *new=(imap_conf_rec *)pcalloc (p, sizeof(imap_conf_rec));
- imap_conf_rec *base = (imap_conf_rec *)basev;
- imap_conf_rec *add = (imap_conf_rec *)addv;
-
- new->imap_menu = add->imap_menu ? add->imap_menu : base->imap_menu;
- new->imap_default=add->imap_default ? add->imap_default : base->imap_default;
- new->imap_base =add-> imap_base ? add->imap_base : base->imap_base;
-
- return new;
- }
-
-
- command_rec imap_cmds[] = {
- { "ImapMenu", set_string_slot,
- (void*)XtOffsetOf(imap_conf_rec, imap_menu), OR_INDEXES, TAKE1,
- "the type of menu generated: none, formatted, semiformatted, unformatted"},
- { "ImapDefault", set_string_slot,
- (void*)XtOffsetOf(imap_conf_rec, imap_default), OR_INDEXES, TAKE1,
- "the action taken if no match: error, nocontent, referer, menu, URL" },
- { "ImapBase", set_string_slot,
- (void*)XtOffsetOf(imap_conf_rec, imap_base), OR_INDEXES, TAKE1,
- "the base for all URL's: map, referer, URL (or start of)" },
- { NULL }
- };
-
- int pointinrect(double point[2], double coords[MAXVERTS][2])
- {
- double max[2], min[2];
- if (coords[0][X] > coords[1][X]) {
- max[0] = coords[0][X];
- min[0] = coords[1][X];
- } else {
- max[0] = coords[1][X];
- min[0] = coords[0][X];
- }
-
- if (coords[0][Y] > coords[1][Y]) {
- max[1] = coords[0][Y];
- min[1] = coords[1][Y];
- } else {
- max[1] = coords[1][Y];
- min[1] = coords[0][Y];
- }
-
- return ((point[X] >= min[0] && point[X] <= max[0]) &&
- (point[Y] >= min[1] && point[Y] <= max[1]));
- }
-
- int pointincircle(double point[2], double coords[MAXVERTS][2])
- {
- int radius1, radius2;
-
- radius1 = ((coords[0][Y] - coords[1][Y]) * (coords[0][Y] - coords[1][Y]))
- + ((coords[0][X] - coords[1][X]) * (coords[0][X] - coords[1][X]));
-
- radius2 = ((coords[0][Y] - point[Y]) * (coords[0][Y] - point[Y]))
- + ((coords[0][X] - point[X]) * (coords[0][X] - point[X]));
-
- return (radius2 <= radius1);
- }
-
- int pointinpoly(double point[2], double pgon[MAXVERTS][2])
- {
- int i, numverts, inside_flag, xflag0;
- int crossings;
- double *p, *stop;
- double tx, ty, y;
-
- for (i = 0; pgon[i][X] != -1 && i < MAXVERTS; i++);
-
- numverts = i;
- crossings = 0;
-
- tx = point[X];
- ty = point[Y];
- y = pgon[numverts - 1][Y];
-
- p = (double *) pgon + 1;
- if ((y >= ty) != (*p >= ty)) {
-
- if ((xflag0 = (pgon[numverts - 1][X] >= tx)) == (*(double *) pgon >= tx)) {
- if (xflag0)
- crossings++;
- }
- else {
- crossings += (pgon[numverts - 1][X] - (y - ty) *
- (*(double *) pgon - pgon[numverts - 1][X]) /
- (*p - y)) >= tx;
- }
- }
-
- stop = pgon[numverts];
-
- for (y = *p, p += 2; p < stop; y = *p, p += 2) {
-
- if (y >= ty) {
-
- while ((p < stop) && (*p >= ty))
- p += 2;
-
- if (p >= stop)
- break;
- if ((xflag0 = (*(p - 3) >= tx)) == (*(p - 1) >= tx)) {
-
- if (xflag0)
- crossings++;
- }
- else {
- crossings += (*(p - 3) - (*(p - 2) - ty) *
- (*(p - 1) - *(p - 3)) / (*p - *(p - 2))) >= tx;
- }
- }
- else {
- while ((p < stop) && (*p < ty))
- p += 2;
-
- if (p >= stop)
- break;
-
- if ((xflag0 = (*(p - 3) >= tx)) == (*(p - 1) >= tx)) {
- if (xflag0)
- crossings++;
- }
- else {
- crossings += (*(p - 3) - (*(p - 2) - ty) *
- (*(p - 1) - *(p - 3)) / (*p - *(p - 2))) >= tx;
- }
- }
- }
-
- inside_flag = crossings & 0x01;
- return (inside_flag);
- }
-
-
- int is_closer(double point[2], double coords[MAXVERTS][2], double *closest)
- {
- double dist_squared =((point[X] - coords[0][X]) * (point[X] - coords[0][X]))
- + ((point[Y] - coords[0][Y]) * (point[Y] - coords[0][Y]));
-
- if (point[X] < 0 || point[Y] < 0 )
- return(0); /* don't mess around with negative coordinates */
-
- if ( *closest < 0 || dist_squared < *closest ) {
- *closest = dist_squared;
- return(1); /* if this is the first point or is the closest yet
- set 'closest' equal to this distance^2 */
- }
-
- return(0); /* if it's not the first or closest */
-
- }
-
- double get_x_coord(char *args)
- {
- char *endptr; /* we want it non-null */
- double x_coord = -1; /* -1 is returned if no coordinate is given */
-
- if (args == NULL)
- return(-1); /* in case we aren't passed anything */
-
- while( *args && !isdigit(*args) && *args != ',')
- args++; /* jump to the first digit, but not past a comma or end */
-
- x_coord = strtod(args, &endptr);
-
- if (endptr > args) /* if a conversion was made */
- return(x_coord);
-
- return(-1); /* else if no conversion was made, or if no args was given */
- }
-
- double get_y_coord(char *args)
- {
- char *endptr; /* we want it non-null */
- char *start_of_y = NULL;
- double y_coord = -1; /* -1 is returned on error */
-
- if (args == NULL)
- return(-1); /* in case we aren't passed anything */
-
- start_of_y = strchr(args, ','); /* the comma */
-
- if (start_of_y) {
-
- start_of_y++; /* start looking at the character after the comma */
-
- while( *start_of_y && !isdigit(*start_of_y))
- start_of_y++; /* jump to the first digit, but not past the end */
-
- y_coord = strtod(start_of_y, &endptr);
-
- if (endptr > start_of_y)
- return(y_coord);
- }
-
- return(-1); /* if no conversion was made, or no comma was found in args */
- }
-
-
- int read_quoted(char *string, char *quoted_part)
- {
- char *starting_pos = string;
-
- while ( isspace(*string) )
- string++; /* go along string until non-whitespace */
-
- if ( *string == '"' ) { /* if that character is a double quote */
-
- string++; /* step over it */
-
- while ( *string && *string != '"' ) {
- *quoted_part++ = *string++; /* copy the quoted portion */
- }
-
- *quoted_part = '\0'; /* end the string with a SNUL */
-
- string++; /* step over the last double quote */
- }
-
- return(string - starting_pos); /* return the total characters read */
- }
-
- /*
- * url needs to point to a string with at least SMALLBUF memory allocated
- */
- void imap_url(request_rec *r, char *base, char *value, char *url)
- {
- /* translates a value into a URL. */
- int slen, clen;
- char *string_pos = NULL;
- char *directory = NULL;
- char *referer = NULL;
- char my_base[SMALLBUF] = {'\0'};
-
- if ( ! strcasecmp(value, "map" ) || ! strcasecmp(value, "menu") ) {
- if (r->server->port == DEFAULT_PORT ) {
- ap_snprintf(url, SMALLBUF,
- "http://%s%s", r->server->server_hostname, r->uri);
- }
- else {
- ap_snprintf(url, SMALLBUF, "http://%s:%d%s", r->server->server_hostname,
- r->server->port, r->uri);
- }
- return;
- }
-
- if ( ! strcasecmp(value, "nocontent") || ! strcasecmp(value, "error") ) {
- strncpy(url, value, SMALLBUF-1);
- url[SMALLBUF-1] = '\0';
- return; /* these are handled elsewhere, so just copy them */
- }
-
- if ( ! strcasecmp(value, "referer" ) ) {
- referer = table_get(r->headers_in, "Referer");
- if ( referer && *referer ) {
- strncpy(url, referer, SMALLBUF-1);
- url[SMALLBUF-1] = '\0';
- return;
- }
- else {
- *value = '\0'; /* if 'referer' but no referring page, null the value */
- }
- }
-
- string_pos = value;
- while ( isalpha(*string_pos) )
- string_pos++; /* go along the URL from the map until a non-letter */
- if ( *string_pos == ':' ) {
- strncpy(url, value, SMALLBUF-1); /* if letters and then a colon (like http:) */
- url[SMALLBUF-1] = '\0';
- return; /* it's an absolute URL, so use it! */
- }
-
- if ( ! base || ! *base ) {
- if ( value && *value ) {
- strncpy(url, value, SMALLBUF-1); /* no base: use what is given */
- url[SMALLBUF-1] = '\0';
- }
- else {
- if (r->server->port == DEFAULT_PORT ) {
- ap_snprintf(url, SMALLBUF, "http://%s/", r->server->server_hostname);
- }
- if (r->server->port != DEFAULT_PORT ) {
- ap_snprintf(url, SMALLBUF, "http://%s:%d/",
- r->server->server_hostname, r->server->port);
- } /* no base, no value: pick a simple default */
- }
- return;
- }
-
- strncpy(my_base, base, sizeof(my_base)-1); /* must be a relative URL to be combined with base */
- my_base[sizeof(my_base)-1] = '\0';
- if (strchr(my_base, '/') == NULL && (!strncmp(value, "../", 3) || !strcmp(value, "..")) ) {
- url[0] = '\0';
- log_reason("invalid base directive in map file", r->uri, r);
- return;
- }
- string_pos = my_base;
- while (*string_pos) {
- if (*string_pos == '/' && *(string_pos+1) == '/') {
- string_pos += 2; /* if there are two slashes, jump over them */
- continue;
- }
- if (*string_pos == '/') { /* the first single slash */
- if ( value[0] == '/' ) {
- *string_pos = '\0';
- } /* if the URL from the map starts from root, end the
- base URL string at the first single slash */
- else {
- directory = string_pos; /* save the start of the directory portion */
-
- string_pos = strrchr(string_pos, '/'); /* now reuse string_pos */
- string_pos++; /* step over that last slash */
- *string_pos = '\0';
- } /* but if the map url is relative, leave the
- slash on the base (if there is one) */
- break;
- }
- string_pos++; /* until we get to the end of my_base without finding
- a slash by itself */
- }
-
- while ( ! strncmp(value, "../", 3) || ! strcmp(value, "..") ) {
-
- if (directory && (slen = strlen (directory))) {
-
- /* for each '..', knock a directory off the end
- by ending the string right at the last slash.
- But only consider the directory portion: don't eat
- into the server name. And only try if a directory
- portion was found */
-
- clen = slen - 1;
-
- while ((slen - clen) == 1) {
-
- if ((string_pos = strrchr(directory, '/')))
- *string_pos = '\0';
- clen = strlen (directory);
- if (clen == 0) break;
- }
-
- value += 2; /* jump over the '..' that we found in the value */
- }
-
- if (! strncmp(value, "/../", 4) || ! strcmp(value, "/..") )
-
- value++; /* step over the '/' if there are more '..' to do.
- this way, we leave the starting '/' on value after
- the last '..', but get rid of it otherwise */
-
- } /* by this point, value does not start with '..' */
-
- if ( value && *value ) {
- ap_snprintf(url, SMALLBUF, "%s%s", my_base, value);
- }
- else {
- ap_snprintf(url, SMALLBUF, "%s", my_base);
- }
- return;
- }
-
- int imap_reply(request_rec *r, char *redirect)
- {
- if ( ! strcasecmp(redirect, "error") ) {
- return SERVER_ERROR; /* they actually requested an error! */
- }
- if ( ! strcasecmp(redirect, "nocontent") ) {
- return HTTP_NO_CONTENT; /* tell the client to keep the page it has */
- }
- if (redirect && *redirect ) {
- table_set(r->headers_out, "Location", redirect);
- return REDIRECT; /* must be a URL, so redirect to it */
- }
- return SERVER_ERROR;
- }
-
- void menu_header(request_rec *r, char *menu)
- {
- r->content_type = "text/html";
- send_http_header(r);
- hard_timeout("send menu", r); /* killed in menu_footer */
-
- rvputs(r, "<html><head>\n<title>Menu for ", r->uri,
- "</title>\n</head><body>\n", NULL);
-
- if (!strcasecmp(menu, "formatted")) {
- rvputs(r, "<h1>Menu for ", r->uri, "</h1>\n<hr>\n\n", NULL);
- }
-
- return;
- }
-
- void menu_blank(request_rec *r, char *menu)
- {
- if (! strcasecmp(menu, "formatted") ) {
- rputs("\n", r);
- }
- if (! strcasecmp(menu, "semiformatted") ) {
- rputs("<br>\n", r);
- }
- if (! strcasecmp(menu, "unformatted") ) {
- rputs("\n", r);
- }
- return;
- }
-
- void menu_comment(request_rec *r, char *menu, char *comment)
- {
- if (! strcasecmp(menu, "formatted") ) {
- rputs("\n", r); /* print just a newline if 'formatted' */
- }
- if (! strcasecmp(menu, "semiformatted") && *comment ) {
- rvputs(r, comment, "\n", NULL);
- }
- if (! strcasecmp(menu, "unformatted") && *comment ) {
- rvputs(r, comment, "\n", NULL);
- }
- return; /* comments are ignored in the 'formatted' form */
- }
-
- void menu_default(request_rec *r, char *menu, char *href, char *text)
- {
- if ( ! strcasecmp(href, "error") || ! strcasecmp(href, "nocontent") ) {
- return; /* don't print such lines, these aren'te really href's */
- }
- if ( ! strcasecmp(menu, "formatted" ) ) {
- rvputs(r, "<pre>(Default) <a href=\"", href, "\">", text, "</a></pre>\n",
- NULL);
- }
- if ( ! strcasecmp(menu, "semiformatted" ) ) {
- rvputs(r, "<pre>(Default) <a href=\"", href, "\">", text, "</a></pre>\n",
- NULL);
- }
- if ( ! strcasecmp(menu, "unformatted" ) ) {
- rvputs(r, "<a href=\"", href, "\">", text, "</a>", NULL);
- }
- return;
- }
-
- void menu_directive(request_rec *r, char *menu, char *href, char *text)
- {
- if ( ! strcasecmp(href, "error") || ! strcasecmp(href, "nocontent") ) {
- return; /* don't print such lines, as this isn't really an href */
- }
- if ( ! strcasecmp(menu, "formatted" ) ) {
- rvputs(r, "<pre> <a href=\"", href, "\">", text, "</a></pre>\n",
- NULL);
- }
- if ( ! strcasecmp(menu, "semiformatted" ) ) {
- rvputs(r, "<pre> <a href=\"", href, "\">", text, "</a></pre>\n",
- NULL);
- }
- if ( ! strcasecmp(menu, "unformatted" ) ) {
- rvputs(r, "<a href=\"", href, "\">", text, "</a>", NULL);
- }
- return;
- }
-
- void menu_footer(request_rec *r)
- {
- rputs("\n\n</body>\n</html>\n", r); /* finish the menu */
- kill_timeout(r);
- }
-
- /* -------------------------------------------------------------- */
-
- /* Return length of this quotedstring/barevalue, and its startpointer */
-
- int len_attr ( char *found, char **from ) {
- char rej[]=" \t\n\r>";
- if ( !found || !*found || !from ) return 0;
- if ( *found=='"' || *found=='\'' ) {
- rej[0]=*found; rej[1]=0; *from=found+1;
- }
- else
- *from=found;
- return strcspn(*from,rej);
- }
-
- /* Find *find, with optional =; return something interesting or NULL */
-
- char *find_attr ( char *from, char *find, char equals ) {
- int findlen=strlen(find);
- while ( *from && !isalpha(*from) ) from++;
- while ( *from && strlen(from)>=findlen ) {
- if ( !strncasecmp(from,find,findlen)
- && !isalpha(from[findlen]) ) { /* isalpha's not really right */
- char *p=from+findlen;
- while ( isspace(*p) ) p++;
- if ( equals ) {
- if ( *p == '=' ) {
- p++;
- while ( isspace(*p) ) p++;
- return p;
- }
- }
- else {
- return p;
- }
- }
- if ( *from ) from++; /* Eat a char (okayed in while(*from)) */
- while ( isalpha(*from) ) from++;
- while ( isspace(*from) ) from++;
- if ( *from == '=' ) {
- int len; char *p;
- from++;
- while ( isspace(*from) ) from++;
- len=len_attr(from,&p);
- if ( ( *from=='"' || *from=='\'' ) && p[len+1] ) len++;
- from=p+len;
- }
- while ( isspace(*from) ) from++;
- }
- return NULL;
- }
-
- /* Find *find after *from; copy its attribute to *to, with <nul> term */
-
- char *copy_attr ( char *from, char *find, char *to ) {
- char *found=find_attr(from,find,(to?'=':0));
- int len=len_attr(found,&from);
- if ( !len || len>=SMALLBUF ) return NULL; /* Huh? */
- strncpy(to,from,len); to[len]=0;
- return found;
- }
-
- /* -------------------------------------------------------------- */
-
- int imap_handler(request_rec *r)
- {
- char input[LARGEBUF] = {'\0'};
- /* size of input can not be lowered without changing hard-coded
- * checks
- */
- char href_text[SMALLBUF] = {'\0'};
- char base[SMALLBUF] = {'\0'};
- char redirect[SMALLBUF] = {'\0'};
- char directive[SMALLBUF] = {'\0'};
- char value[SMALLBUF] = {'\0'};
- char mapdflt[SMALLBUF] = {'\0'};
- char closest[SMALLBUF] = {'\0'};
- double closest_yet = -1;
-
- double testpoint[2] = { -1,-1 };
- double pointarray[MAXVERTS + 1][2] = { {-1,-1} };
- int vertex = 0;
-
- char usemap_only = 0;
- char searching_for_map = 0;
- char usemap_name[SMALLBUF] = {'\0'};
-
- char *string_pos = NULL;
- int chars_read = 0;
- int showmenu = 0;
-
- imap_conf_rec *icr = get_module_config(r->per_dir_config, &imap_module);
-
- char *imap_menu = icr->imap_menu ?
- icr->imap_menu : IMAP_MENU_DEFAULT;
- char *imap_default = icr->imap_default ?
- icr->imap_default : IMAP_DEFAULT_DEFAULT;
- char *imap_base = icr->imap_base ?
- icr->imap_base : IMAP_BASE_DEFAULT;
-
- FILE *imap = pfopen(r->pool, r->filename, "r");
-
- /* Phantom .map files:
- * Since imap can now read <AREA> tags, it makes sense to permit it to
- * read .html files as .map files. Further, since .html files may well
- * contain multiple <MAP>s, it should be possible to specify which <MAP>
- * to read.
- * Specify as index.html.mapname.map or index.html.map: in absence of
- * mapname, the file will only be read to the first </MAP>
- */
- if ( ! imap && strrchr(r->filename,'.') ) {
- char *p;
- strcpy(input, r->filename);
- *strrchr(input,'.')=0; /* Remove .map */
- if ( (p=strrchr(input,'.')) ) {
- imap = pfopen(r->pool, input, "r");
- if ( ! imap ) { /* Not file.html.map */
- strcpy(usemap_name,p+1); *p=0; /* Try file.html.mapname.map */
- if ( strrchr(input,'.') )
- imap = pfopen(r->pool, input, "r");
- }
- }
- usemap_only=1; /* Only read <AREA> tags */
- searching_for_map=1; /* Skip until a suitable <MAP> tag */
- }
-
- if ( ! imap )
- return NOT_FOUND;
-
- imap_url(r, NULL, imap_base, base); /* set base according to default */
- imap_url(r, NULL, imap_default, mapdflt); /* and default to global default */
-
- testpoint[X] = get_x_coord(r->args);
- testpoint[Y] = get_y_coord(r->args);
-
- if ((testpoint[X] == -1 || testpoint[Y] == -1) ||
- (testpoint[X] == 0 && testpoint[Y] == 0) ) {
- /* if either is -1 or if both are zero (new Lynx) */
- /* we don't have valid coordinates */
- testpoint[X] = -1;
- testpoint[Y] = -1;
- if ( strncasecmp(imap_menu, "none", 2) )
- showmenu = 1; /* show the menu _unless_ ImapMenu is 'none' or 'no' */
- }
-
- if (showmenu) { /* send start of imagemap menu if we're going to */
- menu_header(r, imap_menu);
- }
-
- while (!cfg_getline(input, LARGEBUF, imap)) {
- string_pos = input; /* always start at the beginning of line */
-
- directive[0] = '\0';
- value[0] = '\0';
- href_text[0] = '\0';
- redirect[0] = '\0';
- chars_read = 0; /* clear these before using */
-
- if ( ! input[0] ) {
- if (showmenu) {
- menu_blank(r, imap_menu);
- }
- continue;
- }
-
- if ( input[0] == '#' ) {
- if (showmenu) {
- menu_comment(r, imap_menu, input + 1);
- }
- continue;
- } /* blank lines and comments are ignored if we aren't printing a menu */
-
-
-
- if (!strncasecmp(input,"<MAP",4)) { /* Assume it's a MAP tag on one line */
- usemap_only=1;
- searching_for_map=1;
- if ( ! copy_attr(input,"NAME",directive) ) {
- continue;
- }
- if ( !*usemap_name || !strcmp(usemap_name,directive) ) {
- searching_for_map=0;
- }
- continue;
- }
- else if (!strncasecmp(input,"</MAP",4)) { /* Assume it's a /MAP tag on one line */
- if ( !searching_for_map ) break;
- searching_for_map=1;
- continue;
- }
-
- if ( searching_for_map ) continue;
-
- if (!strncasecmp(input,"<AREA",5)) { /* Assume it's an AREA tag on one line */
- /* Translate this into a .map format (gets smaller :) */
- usemap_only=1;
- if ( ! copy_attr(input,"SHAPE",directive) ) {
-
- /* Define a CONTINUE which breaks out of nested loops, on error */
- #define CONTINUE goto AREA_CONTINUE
- AREA_CONTINUE:
- continue;
-
- }
- if ( ! copy_attr(input,"HREF",value) ) {
- if ( ! find_attr(input,"NOHREF",0) ) CONTINUE;
- strcpy(value,"nocontent");
- }
- { char
- *coords=find_attr(input,"COORDS",'='),
- *alt=find_attr(input,"ALT",'=');
-
- if ( alt && alt < coords ) { /* "alt" coords appeared first */
- char *p; int len=len_attr(alt,&p);
- input[0]='"';
- memmove(input+1,p,len);
- strcpy(input+len+1,"\" ");
- alt=NULL;
- }
- else
- input[0]=0; /* Ripe for strcat() */
- string_pos=input+strlen(input);
- if ( coords ) { /* Coords. Minor surgery for circles */
- char quotes=(*coords=='"' || *coords=='\'');
- char *p=coords+quotes;
- char *p2;
- if ( !strcasecmp(directive,"CIRCLE") ) {
- long x,y,r;
- p2=p; x=strtol(p,&p,10); if ( p2==p ) CONTINUE;
- while ( isspace(*p) ) p++; if ( *p++!=',' ) CONTINUE;
- p2=p; y=strtol(p,&p,10); if ( p2==p ) CONTINUE;
- while ( isspace(*p) ) p++; if ( *p++!=',' ) CONTINUE;
- p2=p; r=strtol(p,&p,10); if ( p2==p ) CONTINUE;
- if ( quotes ) {
- while ( isspace(*p) ) p++;
- if ( *p!=*coords ) CONTINUE;
- }
- else {
- if ( *p!='>' || *p!=' ' ) CONTINUE;
- }
- /* XX This is dodgy in a totally pathological case */
- sprintf(string_pos,"%ld,%ld %ld,%ld ",x,y,x,y+r);
- string_pos+=strlen(string_pos);
- }
- else { /* Not circle - take n,n,n,n -> n,n n,n */
- long x,y;
- do {
- p2=p; x=strtol(p,&p,10); if ( p2==p ) CONTINUE;
- while ( isspace(*p) ) p++; if ( *p++!=',' ) CONTINUE;
- p2=p; y=strtol(p,&p,10); if ( p2==p ) CONTINUE;
- while ( isspace(*p) ) p++;
- sprintf(string_pos,"%ld,%ld ",x,y);
- string_pos+=strlen(string_pos);
- } while ( *p++==',' );
- p--;
- if ( quotes ) {
- while ( isspace(*p) ) p++;
- if ( *p!=*coords ) CONTINUE;
- }
- else {
- if ( *p!='>' || *p!=' ' ) CONTINUE;
- }
- } /* else (directive!="circle") */
- } /* if (coords) */
- if ( alt ) { /* coords "alt" */
- char *p; int len=len_attr(alt,&p);
- *string_pos++='"';
- memmove(string_pos,p,len);
- strcpy(string_pos+len,"\"");
- }
- }
- string_pos=input;
-
- /* Don't need this any more */
- #undef CONTINUE
- }
-
-
-
- else {
-
- if ( usemap_only ) {
- continue; /* Don't read anything if we're in HTML mode */
- }
-
- if (sscanf(input, "%255s %255s", directive, value) != 2) {
- continue; /* make sure we read two fields */
- }
- /* Now skip what we just read... we can't use ANSIism %n */
- while (!(isspace(*string_pos))) /* past directive */
- string_pos++;
- while (isspace(*string_pos)) /* and whitespace */
- string_pos++;
- while (!(isspace(*string_pos))) /* and value... have to watch it */
- string_pos++; /* can have punctuation and stuff */
- }
-
- if ( ! strncasecmp(directive, "base", 4 ) ) { /* base, base_uri */
- imap_url(r, NULL, value, base);
- continue; /* base is never printed to a menu */
- }
-
- chars_read = read_quoted(string_pos, href_text);
- string_pos += chars_read; /* read the quoted href text if present */
-
- if ( ! strcasecmp(directive, "default" ) ) { /* default */
- imap_url(r, NULL, value, mapdflt);
- if (showmenu) { /* print the default if there's a menu */
- if (! *href_text) { /* if we didn't find a "href text" */
- strncpy(href_text, mapdflt, sizeof(href_text)-1); /* use the href itself as text */
- href_text[sizeof(href_text)-1] = '\0';
- }
- imap_url(r, base, mapdflt, redirect);
- menu_default(r, imap_menu, redirect, href_text);
- }
- continue;
- }
-
- vertex = 0;
- while ( vertex < MAXVERTS &&
- sscanf(string_pos, "%lf, %lf",
- &pointarray[vertex][X], &pointarray[vertex][Y]) == 2)
- {
- /* Now skip what we just read... we can't use ANSIism %n */
- while(isspace(*string_pos)) /* past whitespace */
- string_pos++;
- while(isdigit(*string_pos)) /* and the 1st number */
- string_pos++;
- string_pos++; /* skip the ',' */
- while(isspace(*string_pos)) /* past any more whitespace */
- string_pos++;
- while(isdigit(*string_pos)) /* 2nd number */
- string_pos++;
- vertex++;
- } /* so long as there are more vertices to read, and
- we have room, read them in. We start where we left
- off of the last sscanf, not at the beginning.*/
-
- pointarray[vertex][X] = -1; /* signals the end of vertices */
-
- if (showmenu) {
- read_quoted(string_pos, href_text); /* href text could be here instead */
- if (! *href_text) { /* if we didn't find a "href text" */
- strncpy(href_text, value, sizeof(href_text)-1); /* use the href itself in the menu */
- href_text[sizeof(href_text)-1] = '\0';
- }
- imap_url(r, base, value, redirect);
- menu_directive(r, imap_menu, redirect, href_text);
- continue;
- }
- /* note that we don't make it past here if we are making a menu */
-
- if (testpoint[X] == -1 || pointarray[0][X] == -1 )
- continue; /* don't try the following tests if testpoints
- are invalid, or if there are no coordinates */
-
- if ( ! strcasecmp(directive, "poly" ) ) { /* poly */
-
- if (pointinpoly (testpoint, pointarray) ) {
- pfclose(r->pool, imap);
- imap_url(r, base, value, redirect);
- return (imap_reply(r, redirect));
- }
- continue;
- }
-
- if ( ! strcasecmp(directive, "circle" ) ) { /* circle */
-
- if (pointincircle (testpoint, pointarray) ) {
- pfclose(r->pool, imap);
- imap_url(r, base, value, redirect);
- return (imap_reply(r, redirect));
- }
- continue;
- }
-
- if ( ! strcasecmp(directive, "rect" ) ) { /* rect */
-
- if (pointinrect (testpoint, pointarray) ) {
- pfclose(r->pool, imap);
- imap_url(r, base, value, redirect);
- return (imap_reply(r, redirect));
- }
- continue;
- }
-
- if ( ! strcasecmp(directive, "point" ) ) { /* point */
-
- if (is_closer(testpoint, pointarray, &closest_yet) ) {
- strncpy(closest, value, sizeof(closest)-1); /* if the closest point yet save it */
- closest[sizeof(closest)-1] = '\0';
- }
-
- continue;
- } /* move on to next line whether it's closest or not */
-
- } /* nothing matched, so we get another line! */
-
- pfclose(r->pool, imap); /* we are done with the map file, so close it */
-
- if (showmenu) {
- menu_footer(r); /* finish the menu and we are done */
- return OK;
- }
-
- if (*closest) { /* if a 'point' directive has been seen */
- imap_url(r, base, closest, redirect);
- return (imap_reply(r, redirect));
- }
-
- if (*mapdflt ) { /* a default should be defined, even if only 'nocontent'*/
- imap_url(r, base, mapdflt, redirect);
- return(imap_reply(r, redirect));
- }
-
- return SERVER_ERROR; /* If we make it this far, we failed. They lose! */
- }
-
-
- handler_rec imap_handlers[] = {
- { IMAP_MAGIC_TYPE, imap_handler },
- { "imap-file", imap_handler },
- { NULL }
- };
-
- module imap_module = {
- STANDARD_MODULE_STUFF,
- NULL, /* initializer */
- create_imap_dir_config, /* dir config creater */
- merge_imap_dir_configs, /* dir merger --- default is to override */
- NULL, /* server config */
- NULL, /* merge server config */
- imap_cmds, /* command table */
- imap_handlers, /* handlers */
- NULL, /* filename translation */
- NULL, /* check_user_id */
- NULL, /* check auth */
- NULL, /* check access */
- NULL, /* type_checker */
- NULL, /* fixups */
- NULL, /* logger */
- NULL /* header parser */
- };
-