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/**
* PROPRIETARY/CONFIDENTIAL. Use of this product is subject to
* license terms. Copyright © 2001 Sun Microsystems, Inc.
* Some preexisting portions Copyright © 2001 Netscape Communications Corp.
* All rights reserved.
*/
/*
* tutor.c - Take a qs, and spit out the appropriate tutorial
*
* All blame to Mike McCool
*/
#include <stdio.h>
#include <stdlib.h>
#include "dsgw.h"
#define BASE_MAN_DIRECTORY "manual/"
#define BASE_INFO_DIRECTORY "info/"
#define HELP_INDEX_HTML "manual/index.html"
/*#define MANUAL_HPATH "bin/lang?file=" DSGW_MANUALSHORTCUT "/"*/
/* Copied from ldapserver/lib/base/util.c */
static int
my_util_uri_is_evil(char *t)
{
register int x;
for(x = 0; t[x]; ++x) {
if(t[x] == '/') {
if(t[x+1] == '/')
return 1;
if(t[x+1] == '.') {
switch(t[x+2]) {
case '.':
if((!t[x+3]) || (t[x+3] == '/'))
return 1;
case '/':
case '\0':
return 1;
}
}
}
#ifdef XP_WIN32
/* On NT, the directory "abc...." is the same as "abc"
* The only cheap way to catch this globally is to disallow
* names with the trailing "."s. Hopefully this is not over
* restrictive
*/
if ((t[x] == '.') && ( (t[x+1] == '/') || (t[x+1] == '\0') )) {
return 1;
}
#endif
}
return 0;
}
FILE *
_open_html_file( char *filename )
{
FILE *f;
char *mypath;
char *p;
p = dsgw_file2path( DSGW_MANROOT, "slapd/gw/" );
mypath = (char *)dsgw_ch_malloc( strlen( p ) +
strlen( filename ) + 1 );
sprintf( mypath, "%s%s", p, filename );
if (!(f = fopen( mypath, "r" ))) {
dsgw_error( DSGW_ERR_OPENHTMLFILE, filename, DSGW_ERROPT_EXIT,
0, NULL );
}
free( p );
free( mypath );
return f;
}
/* Had to copy and paste so wouldn't set referer. */
void _my_return_html_file(char *filename, char *base) {
char line[BIG_LINE];
FILE *html = _open_html_file(filename);
if(base) {
char *tmp;
char *surl=getenv("SERVER_URL");
char *sn=dsgw_ch_strdup(getenv("SCRIPT_NAME"));
tmp=strchr(&(sn[1]), '/');
*tmp='\0';
dsgw_emitf("<BASE href=\"%s%s/%s\">\n", surl, sn, base);
}
while( fgets(line, BIG_LINE, html)) {
dsgw_emits( line );
}
}
int
main(
int argc,
char *argv[]
#ifdef DSGW_DEBUG
,char *env[]
#endif
)
{
char *qs = getenv("QUERY_STRING");
char *html=NULL;
char *base=NULL;
#ifdef DSGW_DEBUG
dsgw_logstringarray( "env", env );
#endif
if(qs == NULL || *qs == '\0') {
dsgw_send_header();
_my_return_html_file(BASE_MAN_DIRECTORY HELP_INDEX_HTML, NULL);
exit(0);
} else {
/* parse the query string: */
auto char *p, *iter = NULL;
/*get a pointer to the context. It should be the last part of the qs*/
p = ldap_utf8strtok_r( qs, "&", &iter );
/*
* Get the conf file name. It'll be translated
* into /dsgw/context/CONTEXT.conf if
* CONTEXT is all alphanumeric (no slahes,
* or dots). CONTEXT is passed into the cgi.
* if context=CONTEXT is not there, or PATH_INFO
* was used, then use dsgw.conf
*/
if ( iter != NULL && !strncasecmp( iter, "context=", 8 )) {
context = dsgw_ch_strdup( iter + 8 );
dsgw_form_unescape( context );
}
}
dsgw_init( argc, argv, DSGW_METHOD_GET );
html = (char *) dsgw_ch_malloc(strlen(qs)+10+10);
sprintf(html, "%s.html", qs);
if (my_util_uri_is_evil(html)) {
dsgw_send_header();
dsgw_emits( "<CENTER><H2>Error</H2></CENTER>\n"
"<P>\n"
"URL contains dangerous characters. Cannot display\n"
"help text." );
exit( 0 );
}
if(qs[0]=='!') {
qs++;
if(!strncmp(qs, BASE_INFO_DIRECTORY, strlen(BASE_INFO_DIRECTORY))) {
sprintf(html, "%s.html", qs);
} else if(!strncmp(qs, BASE_MAN_DIRECTORY, strlen(BASE_MAN_DIRECTORY))) {
if(!strstr(qs, ".html")) {
sprintf(html, "%s.htm", qs);
} else {
sprintf(html, "%s", qs);
}
base=qs;
}
else {
char line[BIG_LINE];
FILE *map=NULL;
char *man_index=NULL;
man_index = dsgw_file2path ( DSGW_MANROOT, "slapd/gw/manual/index.map" );
html[0]='\0';
map=fopen(man_index, "r");
if(!map)
goto ohwell;
while(fgets(line, BIG_LINE, map)) {
if(line[0]==';')
continue;
else if(ldap_utf8isspace(line))
continue;
else {
/* parse out the line */
register char *head=NULL, *tail=NULL;
int found;
head=&(line[0]);
tail=head;
found=0;
while(*tail) {
if(ldap_utf8isspace(tail) || *tail=='=') {
*tail='\0';
found=1;
/* get rid of extra stuff at the end */
tail++;
while(1) {
if (*tail == 0) {
++tail; /* This looks wrong. */
break;
}
LDAP_UTF8INC(tail);
if((!ldap_utf8isspace(tail)) && (*tail!='='))
break;
}
break;
}
LDAP_UTF8INC(tail);
}
if(!found) continue;
/* script name is in head */
if(strncasecmp(head, qs, strlen(qs))) {
continue;
}
/* match found. get the actual file name */
head=tail;
/* Step on CRs and LFs. */
while(*tail) {
if((*tail=='\r') || (*tail=='\n') || (*tail==';')) {
*tail='\0';
break;
}
LDAP_UTF8INC(tail);
}
#if 0
/* No longer remove whitespace at end of line. Now is whitespace in link. */
while(*LDAP_UTF8DEC(tail)) {
if(ldap_utf8isspace(tail)) *tail='\0';
else break;
}
#endif
/* assumedly, head should now have the proper HTML file
* from the manual inside. redirect the client 'cause
* there's no other way to get them to jump to the
* right place.
* Looks like:
* http://host:port/dsgw/bin/lang?context=CONTEXT&file=.MANUAL/FILE.HTM
* Where MANUAL is literal
*/
dsgw_emitf("Location: %s%s/%s\n\n",
gc->gc_urlpfxmain, DSGW_MANUALSHORTCUT, head);
fclose(map);
exit(0);
}
}
fclose(map);
free( man_index );
ohwell:
if(!html[0])
sprintf(html, "%s%s.html", BASE_MAN_DIRECTORY, qs);
}
dsgw_send_header();
_my_return_html_file(html, base);
} else {
dsgw_send_header();
dsgw_emits("<TITLE>Directory Server Gateway Help</TITLE>\n");
dsgw_emits("\n");
dsgw_emits("<frameset BORDER=0 FRAMEBORDER=NO rows=\"57,*\" "
"onLoad=\"top.master=top.opener.top;top.master.helpwin=self;\" "
"onUnload=\"if (top.master) { top.master.helpwin=0; }\">\n" );
dsgw_emitf("<frame src=\"%s?!info/infonav&context=%s\" scrolling=no "
"marginwidth=0 marginheight=0 "
"name=\"infobuttons\">\n", dsgw_getvp(DSGW_CGINUM_TUTOR), context);
dsgw_emitf("<frame src=\"%s?!%s&context=%s\" "
"name=\"infotopic\">\n", dsgw_getvp(DSGW_CGINUM_TUTOR), qs, context);
dsgw_emits("</frameset>\n");
}
return 1;
}
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