File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / php / sapi / apache2handler / sapi_apache2.c
Revision 1.1.1.2 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Tue May 29 12:34:35 2012 UTC (12 years, 1 month ago) by misho
Branches: php, MAIN
CVS tags: v5_4_3elwix, v5_4_17p0, HEAD
php 5.4.3+patches

    1: /*
    2:    +----------------------------------------------------------------------+
    3:    | PHP Version 5                                                        |
    4:    +----------------------------------------------------------------------+
    5:    | Copyright (c) 1997-2012 The PHP Group                                |
    6:    +----------------------------------------------------------------------+
    7:    | This source file is subject to version 3.01 of the PHP license,      |
    8:    | that is bundled with this package in the file LICENSE, and is        |
    9:    | available through the world-wide-web at the following url:           |
   10:    | http://www.php.net/license/3_01.txt                                  |
   11:    | If you did not receive a copy of the PHP license and are unable to   |
   12:    | obtain it through the world-wide-web, please send a note to          |
   13:    | license@php.net so we can mail you a copy immediately.               |
   14:    +----------------------------------------------------------------------+
   15:    | Authors: Sascha Schumann <sascha@schumann.cx>                        |
   16:    |          Parts based on Apache 1.3 SAPI module by                    |
   17:    |          Rasmus Lerdorf and Zeev Suraski                             |
   18:    +----------------------------------------------------------------------+
   19:  */
   20: 
   21: /* $Id: sapi_apache2.c,v 1.1.1.2 2012/05/29 12:34:35 misho Exp $ */
   22: 
   23: #define ZEND_INCLUDE_FULL_WINDOWS_HEADERS
   24: 
   25: #include "php.h"
   26: #include "php_main.h"
   27: #include "php_ini.h"
   28: #include "php_variables.h"
   29: #include "SAPI.h"
   30: 
   31: #include <fcntl.h>
   32: 
   33: #include "ext/standard/php_smart_str.h"
   34: #ifndef NETWARE
   35: #include "ext/standard/php_standard.h"
   36: #else
   37: #include "ext/standard/basic_functions.h"
   38: #endif
   39: 
   40: #include "apr_strings.h"
   41: #include "ap_config.h"
   42: #include "util_filter.h"
   43: #include "httpd.h"
   44: #include "http_config.h"
   45: #include "http_request.h"
   46: #include "http_core.h"
   47: #include "http_protocol.h"
   48: #include "http_log.h"
   49: #include "http_main.h"
   50: #include "util_script.h"
   51: #include "http_core.h"
   52: #include "ap_mpm.h"
   53: 
   54: #include "php_apache.h"
   55: 
   56: #ifdef PHP_WIN32
   57: # if _MSC_VER <= 1300
   58: #  include "win32/php_strtoi64.h"
   59: # endif
   60: #endif
   61: 
   62: /* UnixWare and Netware define shutdown to _shutdown, which causes problems later
   63:  * on when using a structure member named shutdown. Since this source
   64:  * file does not use the system call shutdown, it is safe to #undef it.K
   65:  */
   66: #undef shutdown
   67: 
   68: #define PHP_MAGIC_TYPE "application/x-httpd-php"
   69: #define PHP_SOURCE_MAGIC_TYPE "application/x-httpd-php-source"
   70: #define PHP_SCRIPT "php5-script"
   71: 
   72: /* A way to specify the location of the php.ini dir in an apache directive */
   73: char *apache2_php_ini_path_override = NULL;
   74: 
   75: static int
   76: php_apache_sapi_ub_write(const char *str, uint str_length TSRMLS_DC)
   77: {
   78: 	request_rec *r;
   79: 	php_struct *ctx;
   80: 
   81: 	ctx = SG(server_context);
   82: 	r = ctx->r;
   83: 
   84: 	if (ap_rwrite(str, str_length, r) < 0) {
   85: 		php_handle_aborted_connection();
   86: 	}
   87: 
   88: 	return str_length; /* we always consume all the data passed to us. */
   89: }
   90: 
   91: static int
   92: php_apache_sapi_header_handler(sapi_header_struct *sapi_header, sapi_header_op_enum op, sapi_headers_struct *sapi_headers TSRMLS_DC)
   93: {
   94: 	php_struct *ctx;
   95: 	char *val, *ptr;
   96: 
   97: 	ctx = SG(server_context);
   98: 
   99: 	switch (op) {
  100: 		case SAPI_HEADER_DELETE:
  101: 			apr_table_unset(ctx->r->headers_out, sapi_header->header);
  102: 			return 0;
  103: 
  104: 		case SAPI_HEADER_DELETE_ALL:
  105: 			apr_table_clear(ctx->r->headers_out);
  106: 			return 0;
  107: 
  108: 		case SAPI_HEADER_ADD:
  109: 		case SAPI_HEADER_REPLACE:
  110: 			val = strchr(sapi_header->header, ':');
  111: 
  112: 			if (!val) {
  113: 				return 0;
  114: 			}
  115: 			ptr = val;
  116: 
  117: 			*val = '\0';
  118: 
  119: 			do {
  120: 				val++;
  121: 			} while (*val == ' ');
  122: 
  123: 			if (!strcasecmp(sapi_header->header, "content-type")) {
  124: 				if (ctx->content_type) {
  125: 					efree(ctx->content_type);
  126: 				}
  127: 				ctx->content_type = estrdup(val);
  128: 			} else if (!strcasecmp(sapi_header->header, "content-length")) {
  129: #ifdef PHP_WIN32
  130: # ifdef APR_HAS_LARGE_FILES
  131: 				ap_set_content_length(ctx->r, (apr_off_t) _strtoui64(val, (char **)NULL, 10));
  132: # else
  133: 				ap_set_content_length(ctx->r, (apr_off_t) strtol(val, (char **)NULL, 10));
  134: # endif
  135: #else
  136: 				ap_set_content_length(ctx->r, (apr_off_t) strtol(val, (char **)NULL, 10));
  137: #endif
  138: 			} else if (op == SAPI_HEADER_REPLACE) {
  139: 				apr_table_set(ctx->r->headers_out, sapi_header->header, val);
  140: 			} else {
  141: 				apr_table_add(ctx->r->headers_out, sapi_header->header, val);
  142: 			}
  143: 
  144: 			*ptr = ':';
  145: 
  146: 			return SAPI_HEADER_ADD;
  147: 
  148: 		default:
  149: 			return 0;
  150: 	}
  151: }
  152: 
  153: static int
  154: php_apache_sapi_send_headers(sapi_headers_struct *sapi_headers TSRMLS_DC)
  155: {
  156: 	php_struct *ctx = SG(server_context);
  157: 	const char *sline = SG(sapi_headers).http_status_line;
  158: 
  159: 	ctx->r->status = SG(sapi_headers).http_response_code;
  160: 
  161: 	/* httpd requires that r->status_line is set to the first digit of
  162: 	 * the status-code: */
  163: 	if (sline && strlen(sline) > 12 && strncmp(sline, "HTTP/1.", 7) == 0 && sline[8] == ' ') {
  164: 		ctx->r->status_line = apr_pstrdup(ctx->r->pool, sline + 9);
  165: 		ctx->r->proto_num = 1000 + (sline[7]-'0');
  166: 		if ((sline[7]-'0') == 0) {
  167: 			apr_table_set(ctx->r->subprocess_env, "force-response-1.0", "true");
  168: 		}
  169: 	}
  170: 
  171: 	/*	call ap_set_content_type only once, else each time we call it,
  172: 		configured output filters for that content type will be added */
  173: 	if (!ctx->content_type) {
  174: 		ctx->content_type = sapi_get_default_content_type(TSRMLS_C);
  175: 	}
  176: 	ap_set_content_type(ctx->r, apr_pstrdup(ctx->r->pool, ctx->content_type));
  177: 	efree(ctx->content_type);
  178: 	ctx->content_type = NULL;
  179: 
  180: 	return SAPI_HEADER_SENT_SUCCESSFULLY;
  181: }
  182: 
  183: static int
  184: php_apache_sapi_read_post(char *buf, uint count_bytes TSRMLS_DC)
  185: {
  186: 	apr_size_t len, tlen=0;
  187: 	php_struct *ctx = SG(server_context);
  188: 	request_rec *r;
  189: 	apr_bucket_brigade *brigade;
  190: 
  191: 	r = ctx->r;
  192: 	brigade = ctx->brigade;
  193: 	len = count_bytes;
  194: 
  195: 	/*
  196: 	 * This loop is needed because ap_get_brigade() can return us partial data
  197: 	 * which would cause premature termination of request read. Therefor we
  198: 	 * need to make sure that if data is available we fill the buffer completely.
  199: 	 */
  200: 
  201: 	while (ap_get_brigade(r->input_filters, brigade, AP_MODE_READBYTES, APR_BLOCK_READ, len) == APR_SUCCESS) {
  202: 		apr_brigade_flatten(brigade, buf, &len);
  203: 		apr_brigade_cleanup(brigade);
  204: 		tlen += len;
  205: 		if (tlen == count_bytes || !len) {
  206: 			break;
  207: 		}
  208: 		buf += len;
  209: 		len = count_bytes - tlen;
  210: 	}
  211: 
  212: 	return tlen;
  213: }
  214: 
  215: static struct stat*
  216: php_apache_sapi_get_stat(TSRMLS_D)
  217: {
  218: 	php_struct *ctx = SG(server_context);
  219: 
  220: 	ctx->finfo.st_uid = ctx->r->finfo.user;
  221: 	ctx->finfo.st_gid = ctx->r->finfo.group;
  222: 	ctx->finfo.st_dev = ctx->r->finfo.device;
  223: 	ctx->finfo.st_ino = ctx->r->finfo.inode;
  224: #if defined(NETWARE) && defined(CLIB_STAT_PATCH)
  225: 	ctx->finfo.st_atime.tv_sec = apr_time_sec(ctx->r->finfo.atime);
  226: 	ctx->finfo.st_mtime.tv_sec = apr_time_sec(ctx->r->finfo.mtime);
  227: 	ctx->finfo.st_ctime.tv_sec = apr_time_sec(ctx->r->finfo.ctime);
  228: #else
  229: 	ctx->finfo.st_atime = apr_time_sec(ctx->r->finfo.atime);
  230: 	ctx->finfo.st_mtime = apr_time_sec(ctx->r->finfo.mtime);
  231: 	ctx->finfo.st_ctime = apr_time_sec(ctx->r->finfo.ctime);
  232: #endif
  233: 
  234: 	ctx->finfo.st_size = ctx->r->finfo.size;
  235: 	ctx->finfo.st_nlink = ctx->r->finfo.nlink;
  236: 
  237: 	return &ctx->finfo;
  238: }
  239: 
  240: static char *
  241: php_apache_sapi_read_cookies(TSRMLS_D)
  242: {
  243: 	php_struct *ctx = SG(server_context);
  244: 	const char *http_cookie;
  245: 
  246: 	http_cookie = apr_table_get(ctx->r->headers_in, "cookie");
  247: 
  248: 	/* The SAPI interface should use 'const char *' */
  249: 	return (char *) http_cookie;
  250: }
  251: 
  252: static char *
  253: php_apache_sapi_getenv(char *name, size_t name_len TSRMLS_DC)
  254: {
  255: 	php_struct *ctx = SG(server_context);
  256: 	const char *env_var;
  257: 
  258: 	if (ctx == NULL) {
  259: 		return NULL;
  260: 	}
  261: 
  262: 	env_var = apr_table_get(ctx->r->subprocess_env, name);
  263: 
  264: 	return (char *) env_var;
  265: }
  266: 
  267: static void
  268: php_apache_sapi_register_variables(zval *track_vars_array TSRMLS_DC)
  269: {
  270: 	php_struct *ctx = SG(server_context);
  271: 	const apr_array_header_t *arr = apr_table_elts(ctx->r->subprocess_env);
  272: 	char *key, *val;
  273: 	int new_val_len;
  274: 
  275: 	APR_ARRAY_FOREACH_OPEN(arr, key, val)
  276: 		if (!val) {
  277: 			val = "";
  278: 		}
  279: 		if (sapi_module.input_filter(PARSE_SERVER, key, &val, strlen(val), &new_val_len TSRMLS_CC)) {
  280: 			php_register_variable_safe(key, val, new_val_len, track_vars_array TSRMLS_CC);
  281: 		}
  282: 	APR_ARRAY_FOREACH_CLOSE()
  283: 
  284: 	if (sapi_module.input_filter(PARSE_SERVER, "PHP_SELF", &ctx->r->uri, strlen(ctx->r->uri), &new_val_len TSRMLS_CC)) {
  285: 		php_register_variable_safe("PHP_SELF", ctx->r->uri, new_val_len, track_vars_array TSRMLS_CC);
  286: 	}
  287: }
  288: 
  289: static void
  290: php_apache_sapi_flush(void *server_context)
  291: {
  292: 	php_struct *ctx;
  293: 	request_rec *r;
  294: 	TSRMLS_FETCH();
  295: 
  296: 	ctx = server_context;
  297: 
  298: 	/* If we haven't registered a server_context yet,
  299: 	 * then don't bother flushing. */
  300: 	if (!server_context) {
  301: 		return;
  302: 	}
  303: 
  304: 	r = ctx->r;
  305: 
  306: 	sapi_send_headers(TSRMLS_C);
  307: 
  308: 	r->status = SG(sapi_headers).http_response_code;
  309: 	SG(headers_sent) = 1;
  310: 
  311: 	if (ap_rflush(r) < 0 || r->connection->aborted) {
  312: 		php_handle_aborted_connection();
  313: 	}
  314: }
  315: 
  316: static void php_apache_sapi_log_message(char *msg TSRMLS_DC)
  317: {
  318: 	php_struct *ctx;
  319: 
  320: 	ctx = SG(server_context);
  321: 
  322: 	if (ctx == NULL) { /* we haven't initialized our ctx yet, oh well */
  323: 		ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, 0, NULL, "%s", msg);
  324: 	} else {
  325: 		ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, ctx->r, "%s", msg);
  326: 	}
  327: }
  328: 
  329: static void php_apache_sapi_log_message_ex(char *msg, request_rec *r TSRMLS_DC)
  330: {
  331: 	if (r) {
  332: 		ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, msg, r->filename);
  333: 	} else {
  334: 		php_apache_sapi_log_message(msg TSRMLS_CC);
  335: 	}
  336: }
  337: 
  338: static double php_apache_sapi_get_request_time(TSRMLS_D)
  339: {
  340: 	php_struct *ctx = SG(server_context);
  341: 	return ((double) apr_time_as_msec(ctx->r->request_time)) / 1000.0;
  342: }
  343: 
  344: extern zend_module_entry php_apache_module;
  345: 
  346: static int php_apache2_startup(sapi_module_struct *sapi_module)
  347: {
  348: 	if (php_module_startup(sapi_module, &php_apache_module, 1)==FAILURE) {
  349: 		return FAILURE;
  350: 	}
  351: 	return SUCCESS;
  352: }
  353: 
  354: static sapi_module_struct apache2_sapi_module = {
  355: 	"apache2handler",
  356: 	"Apache 2.0 Handler",
  357: 
  358: 	php_apache2_startup,				/* startup */
  359: 	php_module_shutdown_wrapper,			/* shutdown */
  360: 
  361: 	NULL,						/* activate */
  362: 	NULL,						/* deactivate */
  363: 
  364: 	php_apache_sapi_ub_write,			/* unbuffered write */
  365: 	php_apache_sapi_flush,				/* flush */
  366: 	php_apache_sapi_get_stat,			/* get uid */
  367: 	php_apache_sapi_getenv,				/* getenv */
  368: 
  369: 	php_error,					/* error handler */
  370: 
  371: 	php_apache_sapi_header_handler,			/* header handler */
  372: 	php_apache_sapi_send_headers,			/* send headers handler */
  373: 	NULL,						/* send header handler */
  374: 
  375: 	php_apache_sapi_read_post,			/* read POST data */
  376: 	php_apache_sapi_read_cookies,			/* read Cookies */
  377: 
  378: 	php_apache_sapi_register_variables,
  379: 	php_apache_sapi_log_message,			/* Log message */
  380: 	php_apache_sapi_get_request_time,		/* Request Time */
  381: 	NULL,						/* Child Terminate */
  382: 
  383: 	STANDARD_SAPI_MODULE_PROPERTIES
  384: };
  385: 
  386: static apr_status_t php_apache_server_shutdown(void *tmp)
  387: {
  388: 	apache2_sapi_module.shutdown(&apache2_sapi_module);
  389: 	sapi_shutdown();
  390: #ifdef ZTS
  391: 	tsrm_shutdown();
  392: #endif
  393: 	return APR_SUCCESS;
  394: }
  395: 
  396: static apr_status_t php_apache_child_shutdown(void *tmp)
  397: {
  398: 	apache2_sapi_module.shutdown(&apache2_sapi_module);
  399: #if defined(ZTS) && !defined(PHP_WIN32)
  400: 	tsrm_shutdown();
  401: #endif
  402: 	return APR_SUCCESS;
  403: }
  404: 
  405: static void php_apache_add_version(apr_pool_t *p)
  406: {
  407: 	TSRMLS_FETCH();
  408: 	if (PG(expose_php)) {
  409: 		ap_add_version_component(p, "PHP/" PHP_VERSION);
  410: 	}
  411: }
  412: 
  413: static int php_pre_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp)
  414: {
  415: #ifndef ZTS
  416: 	int threaded_mpm;
  417: 
  418: 	ap_mpm_query(AP_MPMQ_IS_THREADED, &threaded_mpm);
  419: 	if(threaded_mpm) {
  420: 		ap_log_error(APLOG_MARK, APLOG_CRIT, 0, 0, "Apache is running a threaded MPM, but your PHP Module is not compiled to be threadsafe.  You need to recompile PHP.");
  421: 		return DONE;
  422: 	}
  423: #endif
  424: 	/* When this is NULL, apache won't override the hard-coded default
  425: 	 * php.ini path setting. */
  426: 	apache2_php_ini_path_override = NULL;
  427: 	return OK;
  428: }
  429: 
  430: static int
  431: php_apache_server_startup(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
  432: {
  433: 	void *data = NULL;
  434: 	const char *userdata_key = "apache2hook_post_config";
  435: 
  436: 	/* Apache will load, unload and then reload a DSO module. This
  437: 	 * prevents us from starting PHP until the second load. */
  438: 	apr_pool_userdata_get(&data, userdata_key, s->process->pool);
  439: 	if (data == NULL) {
  440: 		/* We must use set() here and *not* setn(), otherwise the
  441: 		 * static string pointed to by userdata_key will be mapped
  442: 		 * to a different location when the DSO is reloaded and the
  443: 		 * pointers won't match, causing get() to return NULL when
  444: 		 * we expected it to return non-NULL. */
  445: 		apr_pool_userdata_set((const void *)1, userdata_key, apr_pool_cleanup_null, s->process->pool);
  446: 		return OK;
  447: 	}
  448: 
  449: 	/* Set up our overridden path. */
  450: 	if (apache2_php_ini_path_override) {
  451: 		apache2_sapi_module.php_ini_path_override = apache2_php_ini_path_override;
  452: 	}
  453: #ifdef ZTS
  454: 	tsrm_startup(1, 1, 0, NULL);
  455: #endif
  456: 	sapi_startup(&apache2_sapi_module);
  457: 	apache2_sapi_module.startup(&apache2_sapi_module);
  458: 	apr_pool_cleanup_register(pconf, NULL, php_apache_server_shutdown, apr_pool_cleanup_null);
  459: 	php_apache_add_version(pconf);
  460: 
  461: 	return OK;
  462: }
  463: 
  464: static apr_status_t php_server_context_cleanup(void *data_)
  465: {
  466: 	void **data = data_;
  467: 	*data = NULL;
  468: 	return APR_SUCCESS;
  469: }
  470: 
  471: static int php_apache_request_ctor(request_rec *r, php_struct *ctx TSRMLS_DC)
  472: {
  473: 	char *content_length;
  474: 	const char *auth;
  475: 
  476: 	SG(sapi_headers).http_response_code = !r->status ? HTTP_OK : r->status;
  477: 	SG(request_info).content_type = apr_table_get(r->headers_in, "Content-Type");
  478: 	SG(request_info).query_string = apr_pstrdup(r->pool, r->args);
  479: 	SG(request_info).request_method = r->method;
  480: 	SG(request_info).proto_num = r->proto_num;
  481: 	SG(request_info).request_uri = apr_pstrdup(r->pool, r->uri);
  482: 	SG(request_info).path_translated = apr_pstrdup(r->pool, r->filename);
  483: 	r->no_local_copy = 1;
  484: 
  485: 	content_length = (char *) apr_table_get(r->headers_in, "Content-Length");
  486: 	SG(request_info).content_length = (content_length ? atol(content_length) : 0);
  487: 
  488: 	apr_table_unset(r->headers_out, "Content-Length");
  489: 	apr_table_unset(r->headers_out, "Last-Modified");
  490: 	apr_table_unset(r->headers_out, "Expires");
  491: 	apr_table_unset(r->headers_out, "ETag");
  492: 
  493: 	auth = apr_table_get(r->headers_in, "Authorization");
  494: 	php_handle_auth_data(auth TSRMLS_CC);
  495: 
  496: 	if (SG(request_info).auth_user == NULL && r->user) {
  497: 		SG(request_info).auth_user = estrdup(r->user);
  498: 	}
  499: 
  500: 	ctx->r->user = apr_pstrdup(ctx->r->pool, SG(request_info).auth_user);
  501: 
  502: 	return php_request_startup(TSRMLS_C);
  503: }
  504: 
  505: static void php_apache_request_dtor(request_rec *r TSRMLS_DC)
  506: {
  507: 	php_request_shutdown(NULL);
  508: }
  509: 
  510: static void php_apache_ini_dtor(request_rec *r, request_rec *p TSRMLS_DC)
  511: {
  512: 	if (strcmp(r->protocol, "INCLUDED")) {
  513: 		zend_try { zend_ini_deactivate(TSRMLS_C); } zend_end_try();
  514: 	} else {
  515: typedef struct {
  516: 	HashTable config;
  517: } php_conf_rec;
  518: 		char *str;
  519: 		uint str_len;
  520: 		php_conf_rec *c = ap_get_module_config(r->per_dir_config, &php5_module);
  521: 
  522: 		for (zend_hash_internal_pointer_reset(&c->config);
  523: 			zend_hash_get_current_key_ex(&c->config, &str, &str_len, NULL, 0,  NULL) == HASH_KEY_IS_STRING;
  524: 			zend_hash_move_forward(&c->config)
  525: 		) {
  526: 			zend_restore_ini_entry(str, str_len, ZEND_INI_STAGE_SHUTDOWN);
  527: 		}
  528: 	}
  529: 	if (p) {
  530: 		((php_struct *)SG(server_context))->r = p;
  531: 	} else {
  532: 		apr_pool_cleanup_run(r->pool, (void *)&SG(server_context), php_server_context_cleanup);
  533: 	}
  534: }
  535: 
  536: static int php_handler(request_rec *r)
  537: {
  538: 	php_struct * volatile ctx;
  539: 	void *conf;
  540: 	apr_bucket_brigade * volatile brigade;
  541: 	apr_bucket *bucket;
  542: 	apr_status_t rv;
  543: 	request_rec * volatile parent_req = NULL;
  544: 	TSRMLS_FETCH();
  545: 
  546: #define PHPAP_INI_OFF php_apache_ini_dtor(r, parent_req TSRMLS_CC);
  547: 
  548: 	conf = ap_get_module_config(r->per_dir_config, &php5_module);
  549: 
  550: 	/* apply_config() needs r in some cases, so allocate server_context early */
  551: 	ctx = SG(server_context);
  552: 	if (ctx == NULL || (ctx && ctx->request_processed && !strcmp(r->protocol, "INCLUDED"))) {
  553: normal:
  554: 		ctx = SG(server_context) = apr_pcalloc(r->pool, sizeof(*ctx));
  555: 		/* register a cleanup so we clear out the SG(server_context)
  556: 		 * after each request. Note: We pass in the pointer to the
  557: 		 * server_context in case this is handled by a different thread.
  558: 		 */
  559: 		apr_pool_cleanup_register(r->pool, (void *)&SG(server_context), php_server_context_cleanup, apr_pool_cleanup_null);
  560: 		ctx->r = r;
  561: 		ctx = NULL; /* May look weird to null it here, but it is to catch the right case in the first_try later on */
  562: 	} else {
  563: 		parent_req = ctx->r;
  564: 		ctx->r = r;
  565: 	}
  566: 	apply_config(conf);
  567: 
  568: 	if (strcmp(r->handler, PHP_MAGIC_TYPE) && strcmp(r->handler, PHP_SOURCE_MAGIC_TYPE) && strcmp(r->handler, PHP_SCRIPT)) {
  569: 		/* Check for xbithack in this case. */
  570: 		if (!AP2(xbithack) || strcmp(r->handler, "text/html") || !(r->finfo.protection & APR_UEXECUTE)) {
  571: 			PHPAP_INI_OFF;
  572: 			return DECLINED;
  573: 		}
  574: 	}
  575: 
  576: 	/* Give a 404 if PATH_INFO is used but is explicitly disabled in
  577: 	 * the configuration; default behaviour is to accept. */
  578: 	if (r->used_path_info == AP_REQ_REJECT_PATH_INFO
  579: 		&& r->path_info && r->path_info[0]) {
  580: 		PHPAP_INI_OFF;
  581: 		return HTTP_NOT_FOUND;
  582: 	}
  583: 
  584: 	/* handle situations where user turns the engine off */
  585: 	if (!AP2(engine)) {
  586: 		PHPAP_INI_OFF;
  587: 		return DECLINED;
  588: 	}
  589: 
  590: 	if (r->finfo.filetype == 0) {
  591: 		php_apache_sapi_log_message_ex("script '%s' not found or unable to stat", r TSRMLS_CC);
  592: 		PHPAP_INI_OFF;
  593: 		return HTTP_NOT_FOUND;
  594: 	}
  595: 	if (r->finfo.filetype == APR_DIR) {
  596: 		php_apache_sapi_log_message_ex("attempt to invoke directory '%s' as script", r TSRMLS_CC);
  597: 		PHPAP_INI_OFF;
  598: 		return HTTP_FORBIDDEN;
  599: 	}
  600: 
  601: 	/* Setup the CGI variables if this is the main request */
  602: 	if (r->main == NULL ||
  603: 		/* .. or if the sub-request environment differs from the main-request. */
  604: 		r->subprocess_env != r->main->subprocess_env
  605: 	) {
  606: 		/* setup standard CGI variables */
  607: 		ap_add_common_vars(r);
  608: 		ap_add_cgi_vars(r);
  609: 	}
  610: 
  611: zend_first_try {
  612: 
  613: 	if (ctx == NULL) {
  614: 		brigade = apr_brigade_create(r->pool, r->connection->bucket_alloc);
  615: 		ctx = SG(server_context);
  616: 		ctx->brigade = brigade;
  617: 
  618: 		if (php_apache_request_ctor(r, ctx TSRMLS_CC)!=SUCCESS) {
  619: 			zend_bailout();
  620: 		}
  621: 	} else {
  622: 		if (!parent_req) {
  623: 			parent_req = ctx->r;
  624: 		}
  625: 		if (parent_req && parent_req->handler &&
  626: 				strcmp(parent_req->handler, PHP_MAGIC_TYPE) &&
  627: 				strcmp(parent_req->handler, PHP_SOURCE_MAGIC_TYPE) &&
  628: 				strcmp(parent_req->handler, PHP_SCRIPT)) {
  629: 			if (php_apache_request_ctor(r, ctx TSRMLS_CC)!=SUCCESS) {
  630: 				zend_bailout();
  631: 			}
  632: 		}
  633: 
  634: 		/*
  635: 		 * check if comming due to ErrorDocument
  636: 		 * We make a special exception of 413 (Invalid POST request) as the invalidity of the request occurs
  637: 		 * during processing of the request by PHP during POST processing. Therefor we need to re-use the exiting
  638: 		 * PHP instance to handle the request rather then creating a new one.
  639: 		*/
  640: 		if (parent_req && parent_req->status != HTTP_OK && parent_req->status != 413 && strcmp(r->protocol, "INCLUDED")) {
  641: 			parent_req = NULL;
  642: 			goto normal;
  643: 		}
  644: 		ctx->r = r;
  645: 		brigade = ctx->brigade;
  646: 	}
  647: 
  648: 	if (AP2(last_modified)) {
  649: 		ap_update_mtime(r, r->finfo.mtime);
  650: 		ap_set_last_modified(r);
  651: 	}
  652: 
  653: 	/* Determine if we need to parse the file or show the source */
  654: 	if (strncmp(r->handler, PHP_SOURCE_MAGIC_TYPE, sizeof(PHP_SOURCE_MAGIC_TYPE) - 1) == 0) {
  655: 		zend_syntax_highlighter_ini syntax_highlighter_ini;
  656: 		php_get_highlight_struct(&syntax_highlighter_ini);
  657: 		highlight_file((char *)r->filename, &syntax_highlighter_ini TSRMLS_CC);
  658: 	} else {
  659: 		zend_file_handle zfd;
  660: 
  661: 		zfd.type = ZEND_HANDLE_FILENAME;
  662: 		zfd.filename = (char *) r->filename;
  663: 		zfd.free_filename = 0;
  664: 		zfd.opened_path = NULL;
  665: 
  666: 		if (!parent_req) {
  667: 			php_execute_script(&zfd TSRMLS_CC);
  668: 		} else {
  669: 			zend_execute_scripts(ZEND_INCLUDE TSRMLS_CC, NULL, 1, &zfd);
  670: 		}
  671: 
  672: 		apr_table_set(r->notes, "mod_php_memory_usage",
  673: 			apr_psprintf(ctx->r->pool, "%zu", zend_memory_peak_usage(1 TSRMLS_CC)));
  674: 	}
  675: 
  676: } zend_end_try();
  677: 
  678: 	if (!parent_req) {
  679: 		php_apache_request_dtor(r TSRMLS_CC);
  680: 		ctx->request_processed = 1;
  681: 		bucket = apr_bucket_eos_create(r->connection->bucket_alloc);
  682: 		APR_BRIGADE_INSERT_TAIL(brigade, bucket);
  683: 
  684: 		rv = ap_pass_brigade(r->output_filters, brigade);
  685: 		if (rv != APR_SUCCESS || r->connection->aborted) {
  686: zend_first_try {
  687: 			php_handle_aborted_connection();
  688: } zend_end_try();
  689: 		}
  690: 		apr_brigade_cleanup(brigade);
  691: 	} else {
  692: 		ctx->r = parent_req;
  693: 	}
  694: 
  695: 	return OK;
  696: }
  697: 
  698: static void php_apache_child_init(apr_pool_t *pchild, server_rec *s)
  699: {
  700: 	apr_pool_cleanup_register(pchild, NULL, php_apache_child_shutdown, apr_pool_cleanup_null);
  701: }
  702: 
  703: void php_ap2_register_hook(apr_pool_t *p)
  704: {
  705: 	ap_hook_pre_config(php_pre_config, NULL, NULL, APR_HOOK_MIDDLE);
  706: 	ap_hook_post_config(php_apache_server_startup, NULL, NULL, APR_HOOK_MIDDLE);
  707: 	ap_hook_handler(php_handler, NULL, NULL, APR_HOOK_MIDDLE);
  708: 	ap_hook_child_init(php_apache_child_init, NULL, NULL, APR_HOOK_MIDDLE);
  709: }
  710: 
  711: /*
  712:  * Local variables:
  713:  * tab-width: 4
  714:  * c-basic-offset: 4
  715:  * End:
  716:  * vim600: sw=4 ts=4 fdm=marker
  717:  * vim<600: sw=4 ts=4
  718:  */

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