root/sapi/apache2handler/php_functions.c

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. php_apache_lookup_uri
  2. PHP_FUNCTION
  3. PHP_FUNCTION
  4. PHP_FUNCTION
  5. PHP_FUNCTION
  6. PHP_FUNCTION
  7. PHP_FUNCTION
  8. PHP_FUNCTION
  9. php_apache_get_version
  10. PHP_FUNCTION
  11. PHP_FUNCTION
  12. PHP_MINFO_FUNCTION
  13. PHP_INI_BEGIN
  14. PHP_MSHUTDOWN_FUNCTION

/*
   +----------------------------------------------------------------------+
   | PHP Version 5                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2015 The PHP Group                                |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.php.net/license/3_01.txt                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Author: Sascha Schumann <sascha@schumann.cx>                         |
   +----------------------------------------------------------------------+
 */

/* $Id$ */

#define ZEND_INCLUDE_FULL_WINDOWS_HEADERS

#include "php.h"
#include "ext/standard/php_smart_str.h"
#include "ext/standard/info.h"
#include "ext/standard/head.h"
#include "php_ini.h"
#include "SAPI.h"

#define CORE_PRIVATE
#include "apr_strings.h"
#include "apr_time.h"
#include "ap_config.h"
#include "util_filter.h"
#include "httpd.h"
#include "http_config.h"
#include "http_request.h"
#include "http_core.h"
#include "http_protocol.h"
#include "http_log.h"
#include "http_main.h"
#include "util_script.h"
#include "http_core.h"
#include "ap_mpm.h"
#if !defined(WIN32) && !defined(WINNT) && !defined(NETWARE)
#include "unixd.h"
#endif

#include "php_apache.h"

#ifdef ZTS
int php_apache2_info_id;
#else
php_apache2_info_struct php_apache2_info;
#endif

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

static request_rec *php_apache_lookup_uri(char *filename TSRMLS_DC)
{
        php_struct *ctx = SG(server_context);
        
        if (!filename || !ctx || !ctx->r) {
                return NULL;
        }

        return ap_sub_req_lookup_uri(filename, ctx->r, ctx->r->output_filters);
}

/* {{{ proto bool virtual(string uri)
 Perform an apache sub-request */
PHP_FUNCTION(virtual)
{
        char *filename;
        int filename_len;
        request_rec *rr;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "p", &filename, &filename_len) == FAILURE) {
                return;
        }

        if (!(rr = php_apache_lookup_uri(filename TSRMLS_CC))) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to include '%s' - URI lookup failed", filename);
                RETURN_FALSE;
        }

        if (rr->status != HTTP_OK) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to include '%s' - error finding URI", filename);
                ap_destroy_sub_req(rr);
                RETURN_FALSE;
        }

        /* Flush everything. */
        php_output_end_all(TSRMLS_C);
        php_header(TSRMLS_C);

        /* Ensure that the ap_r* layer for the main request is flushed, to
         * work around http://issues.apache.org/bugzilla/show_bug.cgi?id=17629 */
        ap_rflush(rr->main);

        if (ap_run_sub_req(rr)) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to include '%s' - request execution failed", filename);
                ap_destroy_sub_req(rr);
                RETURN_FALSE;
        }
        ap_destroy_sub_req(rr);
        RETURN_TRUE;
}
/* }}} */

#define ADD_LONG(name) \
                add_property_long(return_value, #name, rr->name)
#define ADD_TIME(name) \
                add_property_long(return_value, #name, apr_time_sec(rr->name));
#define ADD_STRING(name) \
                if (rr->name) add_property_string(return_value, #name, (char *) rr->name, 1)

PHP_FUNCTION(apache_lookup_uri)
{
        request_rec *rr;
        char *filename;
        int filename_len;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "p", &filename, &filename_len) == FAILURE) {
                return;
        }

        if (!(rr = php_apache_lookup_uri(filename TSRMLS_CC))) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to include '%s' - URI lookup failed", filename);
                RETURN_FALSE;
        }
        
        if (rr->status == HTTP_OK) {
                object_init(return_value);

                ADD_LONG(status);
                ADD_STRING(the_request);
                ADD_STRING(status_line);
                ADD_STRING(method);
                ADD_TIME(mtime);
                ADD_LONG(clength);
#if MODULE_MAGIC_NUMBER < 20020506
                ADD_STRING(boundary);
#endif
                ADD_STRING(range);
                ADD_LONG(chunked);
                ADD_STRING(content_type);
                ADD_STRING(handler);
                ADD_LONG(no_cache);
                ADD_LONG(no_local_copy);
                ADD_STRING(unparsed_uri);
                ADD_STRING(uri);
                ADD_STRING(filename);
                ADD_STRING(path_info);
                ADD_STRING(args);
                ADD_LONG(allowed);
                ADD_LONG(sent_bodyct);
                ADD_LONG(bytes_sent);
                ADD_LONG(mtime);
                ADD_TIME(request_time);

                ap_destroy_sub_req(rr);
                return;
        }
        
        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to include '%s' - error finding URI", filename);
        ap_destroy_sub_req(rr);
        RETURN_FALSE;
}

/* {{{ proto array getallheaders(void)
   Fetch all HTTP request headers */
PHP_FUNCTION(apache_request_headers)
{
        php_struct *ctx;
        const apr_array_header_t *arr;
        char *key, *val;

        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }

        array_init(return_value);
        
        ctx = SG(server_context);
        arr = apr_table_elts(ctx->r->headers_in);

        APR_ARRAY_FOREACH_OPEN(arr, key, val)
                if (!val) val = "";
                add_assoc_string(return_value, key, val, 1);
        APR_ARRAY_FOREACH_CLOSE()
}
/* }}} */

/* {{{ proto array apache_response_headers(void)
   Fetch all HTTP response headers */
PHP_FUNCTION(apache_response_headers)
{
        php_struct *ctx;
        const apr_array_header_t *arr;
        char *key, *val;

        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }

        array_init(return_value);
        
        ctx = SG(server_context);
        arr = apr_table_elts(ctx->r->headers_out);

        APR_ARRAY_FOREACH_OPEN(arr, key, val)
                if (!val) val = "";
                add_assoc_string(return_value, key, val, 1);
        APR_ARRAY_FOREACH_CLOSE()
}
/* }}} */

/* {{{ proto string apache_note(string note_name [, string note_value])
   Get and set Apache request notes */
PHP_FUNCTION(apache_note)
{
        php_struct *ctx;
        char *note_name, *note_val = NULL;
        int note_name_len, note_val_len;
        char *old_note_val=NULL;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s", &note_name, &note_name_len, &note_val, &note_val_len) == FAILURE) {
                return;
        }

        ctx = SG(server_context);

        old_note_val = (char *) apr_table_get(ctx->r->notes, note_name);

        if (note_val) {
                apr_table_set(ctx->r->notes, note_name, note_val);
        }

        if (old_note_val) {
                RETURN_STRING(old_note_val, 1);
        }

        RETURN_FALSE;
}
/* }}} */


/* {{{ proto bool apache_setenv(string variable, string value [, bool walk_to_top])
   Set an Apache subprocess_env variable */
/*
 * XXX this doesn't look right. shouldn't it be the parent ?*/
PHP_FUNCTION(apache_setenv)
{
        php_struct *ctx;
        char *variable=NULL, *string_val=NULL;
        int variable_len, string_val_len;
        zend_bool walk_to_top = 0;
        int arg_count = ZEND_NUM_ARGS();
        request_rec *r;

        if (zend_parse_parameters(arg_count TSRMLS_CC, "ss|b", &variable, &variable_len, &string_val, &string_val_len, &walk_to_top) == FAILURE) {
                return;
        }

        ctx = SG(server_context);

        r = ctx->r;
        if (arg_count == 3) {
                if (walk_to_top) {
                        while(r->prev) {
                                r = r->prev;
                        }
                }
        }

        apr_table_set(r->subprocess_env, variable, string_val);

        RETURN_TRUE;
}
/* }}} */

/* {{{ proto bool apache_getenv(string variable [, bool walk_to_top])
   Get an Apache subprocess_env variable */
/*
 * XXX: shouldn't this be the parent not the 'prev'
 */
PHP_FUNCTION(apache_getenv)
{
        php_struct *ctx;
        char *variable=NULL;
        int variable_len;
        zend_bool walk_to_top = 0;
        int arg_count = ZEND_NUM_ARGS();
        char *env_val=NULL;
        request_rec *r;

        if (zend_parse_parameters(arg_count TSRMLS_CC, "s|b", &variable, &variable_len, &walk_to_top) == FAILURE) {
                return;
        }

        ctx = SG(server_context);

        r = ctx->r;
        if (arg_count == 2) {
                if (walk_to_top) {
                        while(r->prev) {
                                r = r->prev;
                        }
                }
        }

        env_val = (char*) apr_table_get(r->subprocess_env, variable);

        if (env_val != NULL) {
                RETURN_STRING(env_val, 1);
        }

        RETURN_FALSE;
}
/* }}} */

static char *php_apache_get_version()
{
#if MODULE_MAGIC_NUMBER_MAJOR >= 20060905
        return (char *) ap_get_server_banner();
#else
        return (char *) ap_get_server_version();
#endif
}

/* {{{ proto string apache_get_version(void)
   Fetch Apache version */
PHP_FUNCTION(apache_get_version)
{
        char *apv = php_apache_get_version();

        if (apv && *apv) {
                RETURN_STRING(apv, 1);
        } else {
                RETURN_FALSE;
        }
}
/* }}} */

/* {{{ proto array apache_get_modules(void)
   Get a list of loaded Apache modules */
PHP_FUNCTION(apache_get_modules)
{
        int n;
        char *p;
        
        array_init(return_value);
        
        for (n = 0; ap_loaded_modules[n]; ++n) {
                char *s = (char *) ap_loaded_modules[n]->name;
                if ((p = strchr(s, '.'))) {
                        add_next_index_stringl(return_value, s, (p - s), 1);
                } else {
                        add_next_index_string(return_value, s, 1);
                }
        }
}
/* }}} */

PHP_MINFO_FUNCTION(apache)
{
        char *apv = php_apache_get_version();
        smart_str tmp1 = {0};
        char tmp[1024];
        int n, max_requests;
        char *p;
        server_rec *serv = ((php_struct *) SG(server_context))->r->server;
#if !defined(WIN32) && !defined(WINNT) && !defined(NETWARE)
#if MODULE_MAGIC_NUMBER_MAJOR >= 20081201
        AP_DECLARE_DATA extern unixd_config_rec ap_unixd_config;
#else
        AP_DECLARE_DATA extern unixd_config_rec unixd_config;
#endif
#endif
        
        for (n = 0; ap_loaded_modules[n]; ++n) {
                char *s = (char *) ap_loaded_modules[n]->name;
                if ((p = strchr(s, '.'))) {
                        smart_str_appendl(&tmp1, s, (p - s));
                } else {
                        smart_str_appends(&tmp1, s);
                }
                smart_str_appendc(&tmp1, ' ');
        }
        if ((tmp1.len - 1) >= 0) {
                tmp1.c[tmp1.len - 1] = '\0';
        }
            
        php_info_print_table_start();
        if (apv && *apv) {
                php_info_print_table_row(2, "Apache Version", apv);
        }
        snprintf(tmp, sizeof(tmp), "%d", MODULE_MAGIC_NUMBER);
        php_info_print_table_row(2, "Apache API Version", tmp);
        
        if (serv->server_admin && *(serv->server_admin)) {
                php_info_print_table_row(2, "Server Administrator", serv->server_admin);
        }
        
        snprintf(tmp, sizeof(tmp), "%s:%u", serv->server_hostname, serv->port);
        php_info_print_table_row(2, "Hostname:Port", tmp);
        
#if !defined(WIN32) && !defined(WINNT) && !defined(NETWARE)
#if MODULE_MAGIC_NUMBER_MAJOR >= 20081201
        snprintf(tmp, sizeof(tmp), "%s(%d)/%d", ap_unixd_config.user_name, ap_unixd_config.user_id, ap_unixd_config.group_id);
#else
        snprintf(tmp, sizeof(tmp), "%s(%d)/%d", unixd_config.user_name, unixd_config.user_id, unixd_config.group_id);
#endif
        php_info_print_table_row(2, "User/Group", tmp);
#endif

        ap_mpm_query(AP_MPMQ_MAX_REQUESTS_DAEMON, &max_requests);
        snprintf(tmp, sizeof(tmp), "Per Child: %d - Keep Alive: %s - Max Per Connection: %d", max_requests, (serv->keep_alive ? "on":"off"), serv->keep_alive_max);
        php_info_print_table_row(2, "Max Requests", tmp);

        apr_snprintf(tmp, sizeof tmp,
                                 "Connection: %" APR_TIME_T_FMT " - Keep-Alive: %" APR_TIME_T_FMT, 
                                 apr_time_sec(serv->timeout), apr_time_sec(serv->keep_alive_timeout));
        php_info_print_table_row(2, "Timeouts", tmp);
        
        php_info_print_table_row(2, "Virtual Server", (serv->is_virtual ? "Yes" : "No"));
        php_info_print_table_row(2, "Server Root", ap_server_root);
        php_info_print_table_row(2, "Loaded Modules", tmp1.c);

        smart_str_free(&tmp1);
        php_info_print_table_end();
        
        DISPLAY_INI_ENTRIES();

        {
                const apr_array_header_t *arr = apr_table_elts(((php_struct *) SG(server_context))->r->subprocess_env);
                char *key, *val;
                
                SECTION("Apache Environment");
                php_info_print_table_start();   
                php_info_print_table_header(2, "Variable", "Value");
                APR_ARRAY_FOREACH_OPEN(arr, key, val)
                        if (!val) {
                                val = "";
                        }
                        php_info_print_table_row(2, key, val);
                APR_ARRAY_FOREACH_CLOSE()
                                                                
                php_info_print_table_end();     
                
                SECTION("HTTP Headers Information");
                php_info_print_table_start();
                php_info_print_table_colspan_header(2, "HTTP Request Headers");
                php_info_print_table_row(2, "HTTP Request", ((php_struct *) SG(server_context))->r->the_request);
                
                arr = apr_table_elts(((php_struct *) SG(server_context))->r->headers_in);
                APR_ARRAY_FOREACH_OPEN(arr, key, val)
                        if (!val) {
                                val = "";
                        }
                        php_info_print_table_row(2, key, val);
                APR_ARRAY_FOREACH_CLOSE()

                php_info_print_table_colspan_header(2, "HTTP Response Headers");
                arr = apr_table_elts(((php_struct *) SG(server_context))->r->headers_out);
                APR_ARRAY_FOREACH_OPEN(arr, key, val)
                        if (!val) {
                                val = "";
                        }
                        php_info_print_table_row(2, key, val);
                APR_ARRAY_FOREACH_CLOSE()
                
                php_info_print_table_end();
        }
}

/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_apache2handler_lookup_uri, 0, 0, 1)
        ZEND_ARG_INFO(0, filename)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_apache2handler_virtual, 0, 0, 1)
        ZEND_ARG_INFO(0, uri)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO(arginfo_apache2handler_response_headers, 0)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO(arginfo_apache2handler_getallheaders, 0)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_apache2handler_note, 0, 0, 1)
        ZEND_ARG_INFO(0, note_name)
        ZEND_ARG_INFO(0, note_value)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_apache2handler_setenv, 0, 0, 2)
        ZEND_ARG_INFO(0, variable)
        ZEND_ARG_INFO(0, value)
        ZEND_ARG_INFO(0, walk_to_top)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_apache2handler_getenv, 0, 0, 1)
        ZEND_ARG_INFO(0, variable)
        ZEND_ARG_INFO(0, walk_to_top)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO(arginfo_apache2handler_get_version, 0)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO(arginfo_apache2handler_get_modules, 0)
ZEND_END_ARG_INFO()
/* }}} */

static const zend_function_entry apache_functions[] = {
        PHP_FE(apache_lookup_uri,               arginfo_apache2handler_lookup_uri)
        PHP_FE(virtual,                                 arginfo_apache2handler_virtual) 
        PHP_FE(apache_request_headers,  arginfo_apache2handler_getallheaders)
        PHP_FE(apache_response_headers, arginfo_apache2handler_response_headers)
        PHP_FE(apache_setenv,           arginfo_apache2handler_setenv)
        PHP_FE(apache_getenv,           arginfo_apache2handler_getenv)
        PHP_FE(apache_note,             arginfo_apache2handler_note)
        PHP_FE(apache_get_version,      arginfo_apache2handler_get_version)
        PHP_FE(apache_get_modules,      arginfo_apache2handler_get_modules)
        PHP_FALIAS(getallheaders,       apache_request_headers, arginfo_apache2handler_getallheaders)
        {NULL, NULL, NULL}
};

PHP_INI_BEGIN()
        STD_PHP_INI_ENTRY("xbithack",           "0",    PHP_INI_ALL,    OnUpdateLong,   xbithack,       php_apache2_info_struct, php_apache2_info)
        STD_PHP_INI_ENTRY("engine",             "1",    PHP_INI_ALL,    OnUpdateLong,   engine,         php_apache2_info_struct, php_apache2_info)
        STD_PHP_INI_ENTRY("last_modified",      "0",    PHP_INI_ALL,    OnUpdateLong,   last_modified,  php_apache2_info_struct, php_apache2_info)
PHP_INI_END()

static PHP_MINIT_FUNCTION(apache)
{
#ifdef ZTS
        ts_allocate_id(&php_apache2_info_id, sizeof(php_apache2_info_struct), (ts_allocate_ctor) NULL, NULL);
#endif
        REGISTER_INI_ENTRIES();
        return SUCCESS;
}

static PHP_MSHUTDOWN_FUNCTION(apache)
{
        UNREGISTER_INI_ENTRIES();
        return SUCCESS;
}

zend_module_entry php_apache_module = {
        STANDARD_MODULE_HEADER,
        "apache2handler",
        apache_functions,
        PHP_MINIT(apache),
        PHP_MSHUTDOWN(apache),
        NULL,
        NULL, 
        PHP_MINFO(apache),
        NULL,
        STANDARD_MODULE_PROPERTIES
};

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: sw=4 ts=4 fdm=marker
 * vim<600: sw=4 ts=4
 */

/* [<][>][^][v][top][bottom][index][help] */