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/** --- BEGIN COPYRIGHT BLOCK ---
* This Program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; version 2 of the License.
*
* This Program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA.
*
* In addition, as a special exception, Red Hat, Inc. gives You the additional
* right to link the code of this Program with code not covered under the GNU
* General Public License ("Non-GPL Code") and to distribute linked combinations
* including the two, subject to the limitations in this paragraph. Non-GPL Code
* permitted under this exception must only link to the code of this Program
* through those well defined interfaces identified in the file named EXCEPTION
* found in the source code files (the "Approved Interfaces"). The files of
* Non-GPL Code may instantiate templates or use macros or inline functions from
* the Approved Interfaces without causing the resulting work to be covered by
* the GNU General Public License. Only Red Hat, Inc. may make changes or
* additions to the list of Approved Interfaces. You must obey the GNU General
* Public License in all respects for all of the Program code and other code used
* in conjunction with the Program except the Non-GPL Code covered by this
* exception. If you modify this file, you may extend this exception to your
* version of the file, but you are not obligated to do so. If you do not wish to
* provide this exception without modification, you must delete this exception
* statement from your version and license this file solely under the GPL without
* exception.
*
*
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
--- END COPYRIGHT BLOCK --- */
/*
* htmlout.c -- routines to output HTML elements -- HTTP gateway
*/
#include "dsgw.h"
#include "dbtdsgw.h"
#define DSGW_POSTEDVARARG_NAME "name"
static char*
dsgw_change( char *s, dsgwsubst *changes )
{
auto dsgwsubst *ch;
if ( changes == NULL ) return s;
for ( ch = changes; ch; ch = ch->dsgwsubst_next ) {
if ( strstr( s, ch->dsgwsubst_from ) ) {
break;
}
}
if ( ch != NULL ) {
auto char *cs = dsgw_ch_strdup( s );
for ( ch = changes; ch; ch = ch->dsgwsubst_next ) {
auto const size_t from_len = strlen( ch->dsgwsubst_from );
auto const size_t to_len = strlen( ch->dsgwsubst_to );
auto const long change_len = to_len - from_len;
auto char *p;
for ( p = cs; (p = strstr( p, ch->dsgwsubst_from )) != NULL; p += to_len ) {
if ( change_len ) {
if ( change_len > 0 ) { /* allocate more space: */
auto const size_t offset = p - cs;
cs = dsgw_ch_realloc( cs, strlen( cs ) + change_len + 1 );
p = cs + offset;
}
memmove( p + to_len, p + from_len, strlen( p + from_len ) + 1 );
}
if ( to_len != 0 ) {
memcpy( p, ch->dsgwsubst_to, to_len );
}
}
}
return cs;
}
return s;
}
void
dsgw_HTML_emits( char *s )
{
auto char *sc = dsgw_change( s, gc->gc_changeHTML );
dsgw_emits( sc );
if ( sc != s ) free( sc );
}
void
dsgw_html_begin( char *title, int titleinbody )
{
static int header_done = 0;
if ( !header_done ) {
dsgw_emits( "<HTML>" );
dsgw_head_begin();
dsgw_emits( "\n" );
if ( title != NULL ) {
dsgw_emitf( "<TITLE>%s</TITLE>\n", title );
}
dsgw_emitf( "</HEAD>\n<BODY %s>\n", dsgw_html_body_colors );
} else {
dsgw_emits( "\n<HR>\n" );
}
if (( title != NULL ) && ( header_done || titleinbody )) {
dsgw_emitf( "<CENTER><TABLE BORDER=\"2\" CELLPADDING=\"10\" WIDTH=100%%>\n"
"<TR><TD ALIGN=\"center\" WIDTH=\"100%%\">\n<FONT SIZE=\"+2\">"
"<B>%s</B></FONT></TD></TR></TABLE></CENTER>\n<P>\n", title );
}
header_done = 1;
}
void
dsgw_html_end()
{
dsgw_emits( "</BODY></HTML>\n" );
/* make sure everything has been written to the server before we exit */
fflush( stdout );
fflush( stderr );
}
/*
* output a hypertext reference/URL:
* if "urlprefix" != NULL, it is prepended to "url" and "url" is hex-escaped.
* if "urlprefix" == NULL, "url" is assumed to be already escaped as needed.
*
* if "value" != NULL, any occurrence of "--value--" in "url" is replaced by
* a URL-escaped version of the actual value.
* if "value" == NULL, no substitution is done.
*
* if "label" == NULL or is of zero length, the closing ">LABEL</A>" is omitted.
*/
void
dsgw_html_href( char *urlprefix, char *url, char *label, char *value,
char *extra )
{
char *escaped_url, *tag = "--value--";
char *newlabel = NULL;
int freenewlabel;
if ( urlprefix == NULL ) {
dsgw_emits( "<A HREF=" );
escaped_url = NULL;
} else {
dsgw_emitf( "<A HREF=%s", urlprefix );
escaped_url = dsgw_ch_malloc( 3 * strlen( url ) + 1 );
*escaped_url = '\0';
dsgw_strcat_escaped( escaped_url, url );
url = escaped_url;
}
if ( value != NULL ) {
dsgw_substitute_and_output( url, tag, value, 1 );
} else {
dsgw_emits( url );
}
if ( extra != NULL ) {
dsgw_emits( " " );
if ( value != NULL ) {
dsgw_substitute_and_output( extra, tag, value, 1 );
} else {
dsgw_emits( extra );
}
}
newlabel = dsgw_strdup_with_entities( label, &freenewlabel );
if ( newlabel != NULL && *newlabel != '\0' ) {
dsgw_emitf( ">%s</A>\n", newlabel );
if ( freenewlabel ) {
free( newlabel );
}
} else {
dsgw_emits( "></A>\n" );
}
if ( escaped_url != NULL ) {
free( escaped_url );
}
}
void
dsgw_substitute_and_output( char *s, char *tag, char *value, int escape )
{
char *p, *escval;
escval = NULL;
while ( ( p = strstr( s, tag )) != NULL ) {
if ( p > s ) {
dsgw_emitn( stdout, s, p - s );
}
if ( escape ) {
if ( escval == NULL ) {
escval = dsgw_strdup_escaped( value );
}
dsgw_emits( escval );
} else {
dsgw_emits( value );
}
s = p + strlen( tag );
}
if ( escval != NULL ) {
free( escval );
}
if ( *s != '\0' ) {
dsgw_emits( s );
}
}
char *
dsgw_strdup_escaped( const char *s )
{
char *p;
p = dsgw_ch_malloc( 3 * strlen( s ) + 1 );
*p = '\0';
dsgw_strcat_escaped( p, s );
return( p );
}
/* this macro was copied from libldap/tmplout.c */
#define HREF_CHAR_ACCEPTABLE( c ) (( c >= '-' && c <= '9' ) || \
( c >= '@' && c <= 'Z' ) || \
( c == '_' ) || \
( c >= 'a' && c <= 'z' ))
/* this function is copied from libldap/tmplout.c:strcat_escaped */
void
dsgw_strcat_escaped( char *s1, const char *s2 )
{
unsigned char *q;
char *p, *hexdig = "0123456789ABCDEF";
p = s1 + strlen( s1 );
for ( q = (unsigned char *)s2; *q != '\0'; ++q ) {
if ( HREF_CHAR_ACCEPTABLE( *q )) {
*p++ = *q;
} else {
*p++ = '%';
*p++ = hexdig[ 0x0F & ((*(unsigned char*)q) >> 4) ];
*p++ = hexdig[ 0x0F & *q ];
}
}
*p = '\0';
}
#define DSGW_MAX_ENTITY_LEN 6 /* " */
static char *specials = "&\"<>";
static char *entities[] = { "&", """, "<", ">" };
static int entitylen[] = { 5, 6, 4, 4 };
char *
dsgw_strdup_with_entities( char *s, int *madecopyp )
{
/*
* If the UTF8 string "s" contains any HTML special characters, make a
* duplicate where the appropriate HTML "entities" have been substituted
* for the special chars. For example, "<mcs@ace.com>" will be translated
* to "<mcs@ace.com>".
*
* If "s" does not contain any special characters, it is returned and
* *madecopyp is set to 0.
* Otherwise a malloc'd string is returned and *madecopyp is set to 1.
*/
int spcount, idx;
char *p, *q, *r, *d;
spcount = 0;
for ( p = s; *p != '\0'; LDAP_UTF8INC( p )) {
if ( ((*p) & 0x80) == 0 && strchr( specials, *p ) != NULL ) {
++spcount;
}
}
if ( spcount == 0 ) {
*madecopyp = 0;
return( s );
}
d = r = dsgw_ch_malloc( strlen( s ) + 1 + spcount * DSGW_MAX_ENTITY_LEN );
for ( p = s; *p != '\0'; LDAP_UTF8INC( p )) {
if ( ((*p) & 0x80) == 0 && ( q = strchr( specials, *p )) != NULL ) {
idx = ( q - specials );
memcpy( r, entities[ idx ], entitylen[ idx ] );
r += entitylen[ idx ];
} else {
r += LDAP_UTF8COPY( r, p );
}
}
*r = '\0';
*madecopyp = 1;
return( d );
}
void
dsgw_form_begin( const char* name, const char* format, ... )
{
dsgw_emits ("<FORM method=POST");
if (name) {
dsgw_emitf (" name=\"%s\"", name);
}
if (format) {
va_list argl;
va_start (argl, format);
dsgw_emits (" ");
dsgw_emitfv (format, argl);
va_end (argl);
}
dsgw_emits (">");
dsgw_emitf("<INPUT type=hidden name=context value=\"%s\">", context);
dsgw_emitf ("<INPUT type=hidden name=charset value=\"%s\">",
(gc->gc_charset && *(gc->gc_charset)) ? gc->gc_charset : ISO_8859_1_ENCODING );
}
void
dsgw_emit_cgi_var( int argc, char **argv )
{
char *name, *postedvalue;
if (( name = get_arg_by_name( DSGW_POSTEDVARARG_NAME, argc, argv ))
== NULL ) {
dsgw_emitf( XP_GetClientStr(DBT_missingS_1), DSGW_POSTEDVARARG_NAME );
} else if (( postedvalue = dsgw_get_cgi_var( name, DSGW_CGIVAR_OPTIONAL ))
!= NULL ) {
dsgw_emits( postedvalue );
}
}
void
dsgw_emit_button( int argc, char **argv, const char* format, ... )
{
auto char *name = get_arg_by_name( DSGW_ARG_BUTTON_NAME, argc, argv );
auto char *label = get_arg_by_name( DSGW_ARG_BUTTON_LABEL, argc, argv );
if ( !label ) label = XP_GetClientStr( DBT_closeWindow_3 );
dsgw_emitf( "<INPUT TYPE=\"button\" VALUE=\"%s\"", label );
if ( name ) dsgw_emitf( " NAME=\"%s\"", name );
if ( format ) {
va_list argl;
va_start( argl, format );
dsgw_emits( " " );
dsgw_emitfv( format, argl );
va_end( argl );
}
dsgw_emits( ">" );
}
void
dsgw_emit_alertForm ()
{
dsgw_form_begin ("alertForm", "action=\"%s\" target=alertWindow",
DSGW_URLPREFIX_MAIN_HTTP "alert.html");
dsgw_emitf ("<INPUT TYPE=hidden NAME=TITLE VALUE=\"%s\">", XP_GetClientStr(DBT_alertTitle_));
dsgw_emits ("<INPUT TYPE=hidden NAME=MSG VALUE=\"\">"
"</FORM>\n");
}
void
dsgw_emit_confirmForm ()
{
dsgw_form_begin ("confirmForm", "action=\"%s\" target=confirmWindow",
DSGW_URLPREFIX_MAIN_HTTP "confirm.html");
dsgw_emitf ("<INPUT TYPE=hidden NAME=TITLE VALUE=\"%s\">", XP_GetClientStr(DBT_confirmTitle_));
dsgw_emits ("<INPUT TYPE=hidden NAME=MSG VALUE=\"\">"
"<INPUT TYPE=hidden NAME=YES VALUE=\"\">"
"<INPUT TYPE=hidden NAME=NO VALUE=\"\">"
"</FORM>\n");
}
static const char*
defaultWindowOptions = "width=350,height=130,resizable";
void
dsgw_emit_alert (const char* frame, const char* windowOptions, const char* format, ...)
{
if (!windowOptions) windowOptions = defaultWindowOptions;
dsgw_emits (" var aw = window.open(");
dsgw_emits ("''");
/* dsgw_quote_emits (QUOTATION_JAVASCRIPT, DSGW_URLPREFIX_MAIN_HTTP "emptyFrame.html"); */
dsgw_emits ( ", 'alertWindow', ");
dsgw_quote_emits (QUOTATION_JAVASCRIPT, windowOptions);
dsgw_emits ( ");\n"
" aw.focus();\n"
" window."); /* Navigator 3 needs this */
if (frame) dsgw_emitf ("%s.", frame);
dsgw_emits ( "document.alertForm.MSG.value =");
dsgw_quotation_begin (QUOTATION_JAVASCRIPT);
if (format) {
va_list argl;
va_start (argl, format);
dsgw_emitfv (format, argl);
va_end (argl);
}
dsgw_quotation_end();
dsgw_emits ( ";\n"
" window.");
if (frame) dsgw_emitf ("%s.", frame);
dsgw_emits ("document.alertForm.submit();\n");
}
void
dsgw_emit_confirm (const char* frame, const char* yes, const char* no,
const char* windowOptions, int enquote, const char* format, ...)
{
if (!windowOptions) windowOptions = defaultWindowOptions;
dsgw_emits (" cw = window.open ('', 'confirmWindow', ");
dsgw_quote_emits (QUOTATION_JAVASCRIPT, windowOptions);
dsgw_emits ( ");\n"
" cw.focus();\n"
" if (cw.opener == null) cw.opener = self;\n" /* Navigator 2 needs this */
" window."); /* Navigator 3 needs this */
if (frame) dsgw_emitf ("%s.", frame);
dsgw_emits ( "document.confirmForm.MSG.value = ");
if (enquote) dsgw_quotation_begin (QUOTATION_JAVASCRIPT);
if (format) {
va_list argl;
va_start (argl, format);
dsgw_emitfv (format, argl);
va_end (argl);
}
if (enquote) dsgw_quotation_end();
dsgw_emits ( ";\n");
dsgw_emits (" window.");
if (frame) dsgw_emitf ("%s.", frame);
dsgw_emits ( "document.confirmForm.YES.value = ");
dsgw_quote_emits (QUOTATION_JAVASCRIPT, yes ? yes : "");
dsgw_emits ( ";\n");
dsgw_emits (" window.");
if (frame) dsgw_emitf ("%s.", frame);
dsgw_emits ( "document.confirmForm.NO.value = ");
dsgw_quote_emits (QUOTATION_JAVASCRIPT, no ? no : "");
dsgw_emits ( ";\n");
dsgw_emits (" window.");
if (frame) dsgw_emitf ("%s.", frame);
dsgw_emits ( "document.confirmForm.submit();\n");
}
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