/* 
   +----------------------------------------------------------------------+
   | PHP HTML Embedded Scripting Language Version 3.0                     |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997,1998 PHP Development Team (See Credits file)      |
   +----------------------------------------------------------------------+
   | This program is free software; you can redistribute it and/or modify |
   | it under the terms of one of the following licenses:                 |
   |                                                                      |
   |  A) the GNU General Public License as published by the Free Software |
   |     Foundation; either version 2 of the License, or (at your option) |
   |     any later version.                                               |
   |                                                                      |
   |  B) the PHP License as published by the PHP Development Team and     |
   |     included in the distribution in the file: 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 both licenses referred to here.   |
   | If you did not, or have any questions about PHP licensing, please    |
   | contact core@php.net.                                                |
   +----------------------------------------------------------------------+
   | Authors: Rasmus Lerdorf <rasmus@lerdorf.on.ca>                       |
   |          Zeev Suraski <zeev@zend.com>                                |
   +----------------------------------------------------------------------+
 */

#include "php.h"
#include "php_ini.h"
#include "php_globals.h"
#include "ext/standard/head.h"
#include "info.h"
#include "SAPI.h"
#ifndef MSVC5
#include "build-defs.h"
#endif
#include "zend_globals.h"		/* needs ELS */


#define PHP3_CONF_LONG(directive,value1,value2) \
	php3_printf("<tr><td bgcolor=\"" PHP_ENTRY_NAME_COLOR "\">%s</td><td bgcolor=\"" PHP_CONTENTS_COLOR "\">%ld</td><td bgcolor=\"" PHP_CONTENTS_COLOR "\">%ld</td></tr>\n",directive,value1,value2);

#define SECTION(name)  PUTS("<hr><h2>" name "</h2>\n")

#define CREDIT_LINE(module, authors) php_info_print_table_row(2, module, authors)


static int _display_module_info(php3_module_entry *module)
{
	if (module->info_func) {
		php3_printf("<hr><h2>%s</h2>\n", module->name);
		module->info_func(module);
	}
	return 0;
}


PHPAPI void _php3_info(void)
{
	char **env,*tmp1,*tmp2;
	char *php3_uname;
#if WIN32|WINNT
	char php3_windows_uname[256];
	DWORD dwBuild=0;
	DWORD dwVersion = GetVersion();
	DWORD dwWindowsMajorVersion =  (DWORD)(LOBYTE(LOWORD(dwVersion)));
	DWORD dwWindowsMinorVersion =  (DWORD)(HIBYTE(LOWORD(dwVersion)));
#endif
	ELS_FETCH();
	PLS_FETCH();
	SLS_FETCH();
	
#if WIN32|WINNT
	// Get build numbers for Windows NT or Win95
	if (dwVersion < 0x80000000){
		dwBuild = (DWORD)(HIWORD(dwVersion));
		snprintf(php3_windows_uname,255,"%s %d.%d build %d","Windows NT",dwWindowsMajorVersion,dwWindowsMinorVersion,dwBuild);
	} else {
		snprintf(php3_windows_uname,255,"%s %d.%d","Windows 95/98",dwWindowsMajorVersion,dwWindowsMinorVersion);
	}
	php3_uname = php3_windows_uname;
#else
	php3_uname=PHP_UNAME;
#endif


	php3_printf("<center><h1>PHP Version %s</h1></center>\n", PHP_VERSION);

	PUTS("<hr><a href=\"http://www.php.net/\"><img src=\"");
	if (SG(request_info).request_uri) {
		PUTS(SG(request_info).request_uri);
	}
	PUTS("?=PHPE9568F34-D428-11d2-A769-00AA001ACF42\" border=\"0\" width=\"100\" height=\"56\" align=\"right\"></a>\n");
	php3_printf("System: %s<br>Build Date: %s\n<br>", php3_uname, __DATE__);
	php3_printf("php3.ini path:  %s<br>\n", CONFIGURATION_FILE_PATH);

	php3_printf("ZEND_DEBUG=%d<br>\n", ZEND_DEBUG);
#ifdef ZTS
	php3_printf("ZTS is defined");
#else
	php3_printf("ZTS is undefined");
#endif
	/* Zend Engine */
	PUTS("<hr><a href=\"http://www.zend.com/\"><img src=\"");
	if (SG(request_info).request_uri) {
		PUTS(SG(request_info).request_uri);
	}
	PUTS("?=PHPE9568F35-D428-11d2-A769-00AA001ACF42\" border=\"0\" width=\"100\" height=\"89\" align=\"right\"></a>\n");
	php3_printf("This program makes use of the Zend scripting language engine:<br><pre>%s</pre>", get_zend_version());


	PUTS("<center>");
	
	PUTS("<hr><h1>Credits</h1>\n");

	PUTS("<table border=5 width=\"600\">\n");
	PUTS("<tr><th colspan=\"2\" bgcolor=\"" PHP_HEADER_COLOR "\">PHP 4.0 Authors</th></tr>\n");
	php_info_print_table_header(2, "Module", "Authors");
	CREDIT_LINE("Scripting Language Engine", "Andi Gutmans, Zeev Suraski");
	CREDIT_LINE("Extension Module API", "Andi Gutmans, Zeev Suraski");
	CREDIT_LINE("UNIX Build and Modularization", "Stig Bakken");
	CREDIT_LINE("Win32 Port", "Shane Caraveo, Zeev Suraski");
	CREDIT_LINE("Server API (SAPI) Abstraction Layer", "Andi Gutmans, Shane Caraveo, Zeev Suraski");
	CREDIT_LINE("Apache SAPI Module", "Rasmus Lerdorf, Zeev Suraski");
	CREDIT_LINE("ISAPI SAPI Module", "Andi Gutmans, Zeev Suraski");
	CREDIT_LINE("CGI SAPI Module", "Rasmus Lerdorf, Stig Bakken");
	PUTS("</table>\n");


	PUTS("<hr><h1>Configuraton</h1>\n");
	PUTS("<h2>PHP Core</h2>\n");
	display_ini_entries(NULL);
	_php3_hash_apply(&module_registry,(int (*)(void *)) _display_module_info);

#if 0
	/* apache only directives */
	PHP3_CONF_LONG("engine", INI_ORIG_INT("engine"), INI_INT("engine")); /* apache only */
	PHP3_CONF_LONG("xbithack", INI_ORIG_INT("xbithack"), INI_INT("xbithack"));	/* apache only */
	PHP3_CONF_LONG("last_modified", INI_ORIG_INT("last_modified"), INI_INT("last_modified"));  /* apache only */
	/* end of apache only directives */
#endif

	SECTION("Environment");
	PUTS("<table border=5 width=\"600\">\n");
	php_info_print_table_header(2, "Variable", "Value");
	for (env=environ; env!=NULL && *env !=NULL; env++) {
		tmp1 = estrdup(*env);
		if (!(tmp2=strchr(tmp1,'='))) { /* malformed entry? */
			efree(tmp1);
			continue;
		}
		*tmp2 = 0;
		tmp2++;
		php_info_print_table_row(2, tmp1, tmp2);
		efree(tmp1);
	}
	PUTS("</table>\n");

	{
		pval **data, **tmp;
		char *string_key;
		ulong num_key;

		SECTION("PHP Variables");

		PUTS("<table border=5 width=\"600\">\n");
		php_info_print_table_header(2, "Variable", "Value");
		if (_php3_hash_find(&EG(symbol_table), "PHP_SELF", sizeof("PHP_SELF"), (void **) &data) != FAILURE) {
			php_info_print_table_row(2, "PHP_SELF", (*data)->value.str.val);
		}
		if (_php3_hash_find(&EG(symbol_table), "PHP_AUTH_TYPE", sizeof("PHP_AUTH_TYPE"), (void **) &data) != FAILURE) {
			php_info_print_table_row(2, "PHP_AUTH_TYPE", (*data)->value.str.val);
		}
		if (_php3_hash_find(&EG(symbol_table), "PHP_AUTH_USER", sizeof("PHP_AUTH_USER"), (void **) &data) != FAILURE) {
			php_info_print_table_row(2, "PHP_AUTH_USER", (*data)->value.str.val);
		}
		if (_php3_hash_find(&EG(symbol_table), "PHP_AUTH_PW", sizeof("PHP_AUTH_PW"), (void **) &data) != FAILURE) {
			php_info_print_table_row(2, "PHP_AUTH_PW", (*data)->value.str.val);
		}
		if (_php3_hash_find(&EG(symbol_table), "HTTP_GET_VARS", sizeof("HTTP_GET_VARS"), (void **) &data) != FAILURE) {
			_php3_hash_internal_pointer_reset((*data)->value.ht);
			while (_php3_hash_get_current_data((*data)->value.ht, (void **) &tmp) == SUCCESS) {
				convert_to_string(*tmp);
				PUTS("<tr><td bgcolor=\"" PHP_ENTRY_NAME_COLOR "\">HTTP_GET_VARS[\"");
				switch (_php3_hash_get_current_key((*data)->value.ht, &string_key, &num_key)) {
					case HASH_KEY_IS_STRING:
						PUTS(string_key);
						efree(string_key);
						break;
					case HASH_KEY_IS_LONG:
						php3_printf("%ld",num_key);
						break;
				}
				PUTS("\"]</td><td bgcolor=\"" PHP_CONTENTS_COLOR "\">");
				PUTS((*tmp)->value.str.val); /* This could be "Array" - too ugly to expand that for now */
				PUTS("</td></tr>\n");
				_php3_hash_move_forward((*data)->value.ht);
			}
		}
		if (_php3_hash_find(&EG(symbol_table), "HTTP_POST_VARS", sizeof("HTTP_POST_VARS"), (void **) &data) != FAILURE) {
			_php3_hash_internal_pointer_reset((*data)->value.ht);
			while (_php3_hash_get_current_data((*data)->value.ht, (void **) &tmp) == SUCCESS) {
				convert_to_string(*tmp);
				PUTS("<tr><td bgcolor=\"" PHP_ENTRY_NAME_COLOR "\">HTTP_POST_VARS[\"");
				switch (_php3_hash_get_current_key((*data)->value.ht, &string_key, &num_key)) {
					case HASH_KEY_IS_STRING:
						PUTS(string_key);
						efree(string_key);
						break;
					case HASH_KEY_IS_LONG:
						php3_printf("%ld",num_key);
						break;
				}
				PUTS("\"]</td><td bgcolor=\"" PHP_CONTENTS_COLOR "\">");
				PUTS((*tmp)->value.str.val);
				PUTS("</td></tr>\n");
				_php3_hash_move_forward((*data)->value.ht);
			}
		}
		if (_php3_hash_find(&EG(symbol_table), "HTTP_COOKIE_VARS", sizeof("HTTP_COOKIE_VARS"), (void **) &data) != FAILURE) {
			_php3_hash_internal_pointer_reset((*data)->value.ht);
			while (_php3_hash_get_current_data((*data)->value.ht, (void **) &tmp) == SUCCESS) {
				convert_to_string(*tmp);
				PUTS("<tr><td bgcolor=\"" PHP_ENTRY_NAME_COLOR "\">HTTP_COOKIE_VARS[\"");
				switch (_php3_hash_get_current_key((*data)->value.ht, &string_key, &num_key)) {
					case HASH_KEY_IS_STRING:
						PUTS(string_key);
						efree(string_key);
						break;
					case HASH_KEY_IS_LONG:
						php3_printf("%ld",num_key);
						break;
				}
				PUTS("\"]</td><td bgcolor=\"" PHP_CONTENTS_COLOR "\">");
				PUTS((*tmp)->value.str.val);
				PUTS("</td></tr>\n");
				_php3_hash_move_forward((*data)->value.ht);
			}
		}
		PUTS("</table>\n");
	}

#if APACHE
	{
		register int i;
		array_header *arr;
		table_entry *elts;
		request_rec *r;
		SLS_FETCH();

		r = ((request_rec *) SG(server_context));
		arr = table_elts(r->subprocess_env);
		elts = (table_entry *)arr->elts;
		
		SECTION("Apache Environment");	
		PUTS("<table border=5 width=\"600\">\n");
		php_info_print_table_header(2, "Variable", "Value");
		for (i=0; i < arr->nelts; i++) {
			php_info_print_table_row(2, elts[i].key, elts[i].val);
		}
		PUTS("</table>\n");
	}
#endif		

#if APACHE
	{
		array_header *env_arr;
		table_entry *env;
		int i;
		request_rec *r;
		SLS_FETCH();
		
		r = ((request_rec *) SG(server_context));
		SECTION("HTTP Headers Information");
		PUTS("<table border=5 width=\"600\">\n");
		PUTS(" <tr><th colspan=2 bgcolor=\"" PHP_HEADER_COLOR "\">HTTP Request Headers</th></tr>\n");
		php_info_print_table_row(2, "HTTP Request", r->the_request);
		env_arr = table_elts(r->headers_in);
		env = (table_entry *)env_arr->elts;
		for (i = 0; i < env_arr->nelts; ++i) {
			if (env[i].key) {
				php_info_print_table_row(2, env[i].key, env[i].val);
			}
		}
		PUTS(" <tr><th colspan=2  bgcolor=\"" PHP_HEADER_COLOR "\">HTTP Response Headers</th></tr>\n");
		env_arr = table_elts(r->headers_out);
		env = (table_entry *)env_arr->elts;
		for(i = 0; i < env_arr->nelts; ++i) {
			if (env[i].key) {
				php_info_print_table_row(2, env[i].key, env[i].val);
			}
		}
		PUTS("</table>\n\n");
	}
#endif

	PUTS("</center>");


	SECTION("PHP License");
	PUTS("<PRE>This program is free software; you can redistribute it and/or modify\n");
	PUTS("it under the terms of:\n");
	PUTS("\n");
	PUTS("A) the GNU General Public License as published by the Free Software\n");
    PUTS("   Foundation; either version 2 of the License, or (at your option)\n");
    PUTS("   any later version.\n");
	PUTS("\n");
	PUTS("B) the PHP License as published by the PHP Development Team and\n");
    PUTS("   included in the distribution in the file: LICENSE\n");
	PUTS("\n");
	PUTS("This program is distributed in the hope that it will be useful,\n");
	PUTS("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
	PUTS("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
	PUTS("GNU General Public License for more details.\n");
	PUTS("\n");
	PUTS("You should have received a copy of both licenses referred to here.\n");
	PUTS("If you did not, or have any questions about PHP licensing, please\n");
	PUTS("contact core@php.net.</PRE>\n");
	
}


PHPAPI void php_info_print_table_header(int num_cols, ...)
{
	int i;
	va_list row_elements;
	char *row_element;

	va_start(row_elements, num_cols);

	php3_printf("<tr>");
	for (i=0; i<num_cols; i++) {
		row_element = va_arg(row_elements, char *);
		if (!row_element || !*row_element) {
			row_element = "&nbsp;";
		}
		php3_printf("<th bgcolor=\"" PHP_HEADER_COLOR "\" valign=\"top\">%s</th>", row_element);
	}
	php3_printf("</tr>\n");

	va_end(row_elements);
}


PHPAPI void php_info_print_table_row(int num_cols, ...)
{
	int i;
	va_list row_elements;
	char *color = PHP_ENTRY_NAME_COLOR;
	char *row_element;

	va_start(row_elements, num_cols);

	php3_printf("<tr>");
	for (i=0; i<num_cols; i++) {
		row_element = va_arg(row_elements, char *);
		if (!row_element || !*row_element) {
			row_element = "&nbsp;";
		}
		php3_printf("<td bgcolor=\"%s\" valign=\"top\">%s</td>", color, row_element);
		color = PHP_CONTENTS_COLOR;
	}
	php3_printf("</tr>\n");

	va_end(row_elements);
}


/* {{{ proto void phpinfo(void)
   Output a page of useful information about PHP and the current request */
PHP_FUNCTION(info)
{
	_php3_info();
	RETURN_TRUE;
}
/* }}} */

/* {{{ proto string phpversion(void)
   Return the current PHP version */
PHP_FUNCTION(version)
{
    RETURN_STRING(PHP_VERSION,1);
}
/* }}} */

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 */