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/*
* "$Id: html.c 5549 2006-05-19 19:39:28Z mike $"
*
* HTML support functions for the Common UNIX Printing System (CUPS).
*
* Copyright 1997-2006 by Easy Software Products.
*
* These coded instructions, statements, and computer programs are the
* property of Easy Software Products and are protected by Federal
* copyright law. Distribution and use rights are outlined in the file
* "LICENSE.txt" which should have been included with this file. If this
* file is missing or damaged please contact Easy Software Products
* at:
*
* Attn: CUPS Licensing Information
* Easy Software Products
* 44141 Airport View Drive, Suite 204
* Hollywood, Maryland 20636 USA
*
* Voice: (301) 373-9600
* EMail: cups-info@cups.org
* WWW: http://www.cups.org
*
* Contents:
*
* cgiEndHTML() - End a HTML page.
* cgiFormEncode() - Encode a string as a form variable...
* cgiStartHTML() - Start a HTML page.
* cgi_null_passwd() - Return a NULL password for authentication.
*/
/*
* Include necessary headers...
*/
#include "cgi-private.h"
/*
* Local functions...
*/
static const char *cgi_null_passwd(const char *prompt);
/*
* 'cgiEndHTML()' - End a HTML page.
*/
void
cgiEndHTML(void)
{
/*
* Send the standard trailer...
*/
cgiCopyTemplateLang("trailer.tmpl");
}
/*
* 'cgiFormEncode()' - Encode a string as a form variable...
*/
char * /* O - Destination string */
cgiFormEncode(char *dst, /* I - Destination string */
const char *src, /* I - Source string */
size_t dstsize) /* I - Size of destination string */
{
char *dstptr, /* Pointer into destination */
*dstend; /* End of destination */
static const char *hex = /* Hexadecimal characters */
"0123456789ABCDEF";
/*
* Mark the end of the string...
*/
dstend = dst + dstsize - 1;
/*
* Loop through the source string and copy...
*/
for (dstptr = dst; *src && dstptr < dstend;)
{
switch (*src)
{
case ' ' :
/*
* Encode spaces with a "+"...
*/
*dstptr++ = '+';
src ++;
break;
case '&' :
case '%' :
case '+' :
/*
* Encode special characters with %XX escape...
*/
if (dstptr < (dstend - 2))
{
*dstptr++ = '%';
*dstptr++ = hex[(*src & 255) >> 4];
*dstptr++ = hex[*src & 15];
src ++;
}
break;
default :
/*
* Copy other characters literally...
*/
*dstptr++ = *src++;
break;
}
}
/*
* Nul-terminate the destination string...
*/
*dstptr = '\0';
/*
* Return the encoded string...
*/
return (dst);
}
/*
* 'cgiStartHTML()' - Start a HTML page.
*/
void
cgiStartHTML(const char *title) /* I - Title of page */
{
/*
* Disable any further authentication attempts...
*/
cupsSetPasswordCB(cgi_null_passwd);
/*
* Tell the client to expect UTF-8 encoded HTML...
*/
puts("Content-Type: text/html;charset=utf-8\n");
/*
* Send a standard header...
*/
cgiSetVariable("TITLE", title);
cgiSetServerVersion();
cgiCopyTemplateLang("header.tmpl");
}
/*
* 'cgi_null_passwd()' - Return a NULL password for authentication.
*/
static const char * /* O - NULL */
cgi_null_passwd(const char *prompt) /* I - Prompt string (unused) */
{
(void)prompt;
fprintf(stderr, "DEBUG: cgi_null_passwd(prompt=\"%s\") called!\n",
prompt ? prompt : "(null)");
return (NULL);
}
/*
* End of "$Id: html.c 5549 2006-05-19 19:39:28Z mike $".
*/
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