/* +----------------------------------------------------------------------+ | PHP version 4.0 | +----------------------------------------------------------------------+ | Copyright (c) 1997, 1998, 1999, 2000 The PHP Group | +----------------------------------------------------------------------+ | This source file is subject to version 2.02 of the PHP license, | | that is bundled with this package in the file LICENSE, and is | | available at through the world-wide-web at | | http://www.php.net/license/2_02.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. | +----------------------------------------------------------------------+ | Authors: Rasmus Lerdorf | | (with helpful hints from Dean Gaudet | | PHP 4.0 patches by Zeev Suraski | +----------------------------------------------------------------------+ */ /* $Id$ */ #define NO_REGEX_EXTRA_H #ifdef WIN32 #include #include #endif #include "zend.h" #include "php.h" #include "php_variables.h" #include "SAPI.h" #include "httpd.h" #include "http_config.h" #if MODULE_MAGIC_NUMBER > 19980712 # include "ap_compat.h" #else # if MODULE_MAGIC_NUMBER > 19980324 # include "compat.h" # endif #endif #include "http_core.h" #include "http_main.h" #include "http_protocol.h" #include "http_request.h" #include "http_log.h" #include "php_ini.h" #include "php_globals.h" #include "SAPI.h" #include "php_main.h" #include "zend_compile.h" #include "zend_execute.h" #include "zend_highlight.h" #include "zend_indent.h" #include "ext/standard/php_standard.h" #include "util_script.h" #include "mod_php4.h" #if HAVE_MOD_DAV # include "mod_dav.h" #endif int apache_php_module_main(request_rec *r, int display_source_mode CLS_DC ELS_DC PLS_DC SLS_DC); void php_save_umask(void); void php_restore_umask(void); int sapi_apache_read_post(char *buffer, uint count_bytes SLS_DC); char *sapi_apache_read_cookies(SLS_D); int sapi_apache_header_handler(sapi_header_struct *sapi_header, sapi_headers_struct *sapi_headers SLS_DC); int sapi_apache_send_headers(sapi_headers_struct *sapi_headers SLS_DC); int send_php(request_rec *r, int display_source_mode, char *filename); int send_parsed_php(request_rec * r); int send_parsed_php_source(request_rec * r); int php_xbithack_handler(request_rec * r); void php_init_handler(server_rec *s, pool *p); #if MODULE_MAGIC_NUMBER >= 19970728 static void php_child_exit_handler(server_rec *s, pool *p); #endif #if MODULE_MAGIC_NUMBER > 19961007 #define CONST_PREFIX const #else #define CONST_PREFIX #endif CONST_PREFIX char *php_apache_value_handler_ex(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2, int mode); CONST_PREFIX char *php_apache_value_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2); CONST_PREFIX char *php_apache_admin_value_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2); CONST_PREFIX char *php_apache_flag_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2); CONST_PREFIX char *php_apache_flag_handler_ex(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2, int mode); CONST_PREFIX char *php_apache_admin_flag_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2); /* ### these should be defined in mod_php4.h or somewhere else */ #define USE_PATH 1 #define IGNORE_URL 2 module MODULE_VAR_EXPORT php4_module; int saved_umask; static unsigned char apache_php_initialized; typedef struct _php_per_dir_entry { char *key; char *value; uint key_length; uint value_length; int type; } php_per_dir_entry; php_apache_info_struct php_apache_info; /* active config */ /* some systems are missing these from their header files */ void php_save_umask(void) { saved_umask = umask(077); umask(saved_umask); } static int sapi_apache_ub_write(const char *str, uint str_length) { int ret; SLS_FETCH(); PLS_FETCH(); if (SG(server_context)) { ret = rwrite(str, str_length, (request_rec *) SG(server_context)); } else { ret = fwrite(str, 1, str_length, stderr); } if(ret != str_length) { PG(connection_status) = PHP_CONNECTION_ABORTED; if (!PG(ignore_user_abort)) { zend_bailout(); } } return ret; } static void sapi_apache_flush(void *server_context) { if (server_context) { #if MODULE_MAGIC_NUMBER > 19970110 rflush((request_rec *) server_context); #else bflush((request_rec *) server_context->connection->client); #endif } } int sapi_apache_read_post(char *buffer, uint count_bytes SLS_DC) { uint total_read_bytes=0, read_bytes; request_rec *r = (request_rec *) SG(server_context); void (*handler)(int); handler = signal(SIGPIPE, SIG_IGN); while (total_read_bytessubprocess_env, "HTTP_COOKIE"); } int sapi_apache_header_handler(sapi_header_struct *sapi_header, sapi_headers_struct *sapi_headers SLS_DC) { char *header_name, *header_content, *p; request_rec *r = (request_rec *) SG(server_context); header_name = sapi_header->header; header_content = p = strchr(header_name, ':'); if (!p) { return 0; } *p = 0; do { header_content++; } while (*header_content==' '); if (!strcasecmp(header_name, "Content-Type")) { r->content_type = pstrdup(r->pool, header_content); } else if (!strcasecmp(header_name, "Set-Cookie")) { table_add(r->headers_out, header_name, header_content); } else { table_set(r->headers_out, header_name, header_content); } *p = ':'; /* a well behaved header handler shouldn't change its original arguments */ efree(sapi_header->header); return 0; /* don't use the default SAPI mechanism, Apache duplicates this functionality */ } int sapi_apache_send_headers(sapi_headers_struct *sapi_headers SLS_DC) { if(SG(server_context) == NULL) { /* server_context is not here anymore */ return SAPI_HEADER_SEND_FAILED; } ((request_rec *) SG(server_context))->status = SG(sapi_headers).http_response_code; send_http_header((request_rec *) SG(server_context)); return SAPI_HEADER_SENT_SUCCESSFULLY; } static void sapi_apache_register_server_variables(zval *track_vars_array ELS_DC SLS_DC PLS_DC) { register int i; array_header *arr = table_elts(((request_rec *) SG(server_context))->subprocess_env); table_entry *elts = (table_entry *) arr->elts; char *script_filename=NULL; for (i = 0; i < arr->nelts; i++) { char *val; if (elts[i].val) { val = elts[i].val; if (!strcmp(elts[i].key, "SCRIPT_FILENAME")) { script_filename = val; } } else { val = empty_string; } php_register_variable(elts[i].key, val, track_vars_array ELS_CC PLS_CC); } /* insert special variables */ if (script_filename) { php_register_variable("PATH_TRANSLATED", script_filename, track_vars_array ELS_CC PLS_CC); } php_register_variable("PHP_SELF", ((request_rec *) SG(server_context))->uri, track_vars_array ELS_CC PLS_CC); } static int php_apache_startup(sapi_module_struct *sapi_module) { if(php_module_startup(sapi_module) == FAILURE || zend_startup_module(&apache_module_entry) == FAILURE) { return FAILURE; } else { return SUCCESS; } } static void php_apache_log_message(char *message) { SLS_FETCH(); if (SG(server_context)) { #if MODULE_MAGIC_NUMBER >= 19970831 aplog_error(NULL, 0, APLOG_ERR | APLOG_NOERRNO, ((request_rec *) SG(server_context))->server, "%s", message); #else log_error(message, ((request_rec *) SG(server_context))->server); #endif } else { fprintf(stderr, message); fprintf(stderr, "\n"); } } static void php_apache_request_shutdown(void *dummy) { SLS_FETCH(); SG(server_context) = NULL; /* The server context (request) is invalid by the time run_cleanups() is called */ php_request_shutdown(dummy); } static int php_apache_sapi_activate(SLS_D) { /* * For the Apache module version, this bit of code registers a cleanup * function that gets triggered when our request pool is destroyed. * We need this because at any point in our code we can be interrupted * and that may happen before we have had time to free our memory. * The php_request_shutdown function needs to free all outstanding allocated * memory. */ block_alarms(); register_cleanup(((request_rec *) SG(server_context))->pool, NULL, php_apache_request_shutdown, php_request_shutdown_for_exec); unblock_alarms(); return SUCCESS; } static struct stat *php_apache_get_stat(SLS_D) { return &((request_rec *) SG(server_context))->finfo; } static char *php_apache_getenv(char *name, size_t name_len SLS_DC) { return (char *) table_get(((request_rec *) SG(server_context))->subprocess_env, name); } static sapi_module_struct sapi_module_conf = { "apache", /* name */ "Apache", /* pretty name */ php_apache_startup, /* startup */ php_module_shutdown_wrapper, /* shutdown */ php_apache_sapi_activate, /* activate */ NULL, /* deactivate */ sapi_apache_ub_write, /* unbuffered write */ sapi_apache_flush, /* flush */ php_apache_get_stat, /* get uid */ php_apache_getenv, /* getenv */ php_error, /* error handler */ sapi_apache_header_handler, /* header handler */ sapi_apache_send_headers, /* send headers handler */ NULL, /* send header handler */ sapi_apache_read_post, /* read POST data */ sapi_apache_read_cookies, /* read Cookies */ sapi_apache_register_server_variables, /* register server variables */ php_apache_log_message, /* Log message */ #ifdef PHP_WIN32 NULL, NULL, #else block_alarms, /* Block interruptions */ unblock_alarms, /* Unblock interruptions */ #endif STANDARD_SAPI_MODULE_PROPERTIES }; void php_restore_umask(void) { umask(saved_umask); } static void init_request_info(SLS_D) { request_rec *r = ((request_rec *) SG(server_context)); char *content_length = (char *) table_get(r->subprocess_env, "CONTENT_LENGTH"); const char *authorization=NULL; char *tmp; SG(request_info).query_string = r->args; SG(request_info).path_translated = r->filename; SG(request_info).request_uri = r->uri; SG(request_info).request_method = (char *)r->method; SG(request_info).content_type = (char *) table_get(r->subprocess_env, "CONTENT_TYPE"); SG(request_info).content_length = (content_length ? atoi(content_length) : 0); SG(request_info).headers_only = r->header_only; SG(sapi_headers).http_response_code = r->status; if (r->headers_in) { authorization = table_get(r->headers_in, "Authorization"); } if (authorization /* && !auth_type(r) */ && !strcasecmp(getword(r->pool, &authorization, ' '), "Basic")) { tmp = uudecode(r->pool, authorization); SG(request_info).auth_user = getword_nulls_nc(r->pool, &tmp, ':'); if (SG(request_info).auth_user) { r->connection->user = pstrdup(r->connection->pool,SG(request_info).auth_user); r->connection->ap_auth_type = "Basic"; SG(request_info).auth_user = estrdup(SG(request_info).auth_user); } SG(request_info).auth_password = tmp; if (SG(request_info).auth_password) { SG(request_info).auth_password = estrdup(SG(request_info).auth_password); } } else { SG(request_info).auth_user = NULL; SG(request_info).auth_password = NULL; } } static int php_apache_alter_ini_entries(php_per_dir_entry *per_dir_entry) { php_alter_ini_entry(per_dir_entry->key, per_dir_entry->key_length+1, per_dir_entry->value, per_dir_entry->value_length+1, per_dir_entry->type, PHP_INI_STAGE_ACTIVATE); return 0; } static char *php_apache_get_default_mimetype(request_rec *r SLS_DC) { char *mimetype; if (SG(default_mimetype) || SG(default_charset)) { /* Assume output will be of the default MIME type. Individual scripts may change this later. */ char *tmpmimetype; tmpmimetype = sapi_get_default_content_type(SLS_C); mimetype = pstrdup(r->pool, tmpmimetype); efree(tmpmimetype); } else { mimetype = SAPI_DEFAULT_MIMETYPE "; charset=" SAPI_DEFAULT_CHARSET; } return mimetype; } int send_php(request_rec *r, int display_source_mode, char *filename) { int retval; HashTable *per_dir_conf; SLS_FETCH(); ELS_FETCH(); CLS_FETCH(); PLS_FETCH(); if (setjmp(EG(bailout))!=0) { return OK; } per_dir_conf = (HashTable *) get_module_config(r->per_dir_config, &php4_module); if (per_dir_conf) { zend_hash_apply((HashTable *) per_dir_conf, (int (*)(void *)) php_apache_alter_ini_entries); } /* We don't accept OPTIONS requests, but take everything else */ if (r->method_number == M_OPTIONS) { r->allowed |= (1 << METHODS) - 1; return DECLINED; } /* Make sure file exists */ if (filename == NULL && r->finfo.st_mode == 0) { return DECLINED; } /* If PHP parser engine has been turned off with an "engine off" * directive, then decline to handle this request */ if (!php_apache_info.engine) { r->content_type = php_apache_get_default_mimetype(r SLS_CC); r->allowed |= (1 << METHODS) - 1; return DECLINED; } if (filename == NULL) { filename = r->filename; } /* Apache 1.2 has a more complex mechanism for reading POST data */ #if MODULE_MAGIC_NUMBER > 19961007 if ((retval = setup_client_block(r, REQUEST_CHUNKED_ERROR))) return retval; #endif if (php_apache_info.last_modified) { #if MODULE_MAGIC_NUMBER < 19970912 if ((retval = set_last_modified(r, r->finfo.st_mtime))) { return retval; } #else update_mtime (r, r->finfo.st_mtime); set_last_modified(r); set_etag(r); #endif } /* Assume output will be of the default MIME type. Individual scripts may change this later in the request. */ r->content_type = php_apache_get_default_mimetype(r SLS_CC); /* Init timeout */ hard_timeout("send", r); SG(server_context) = r; php_save_umask(); add_common_vars(r); add_cgi_vars(r); init_request_info(SLS_C); apache_php_module_main(r, display_source_mode CLS_CC ELS_CC PLS_CC SLS_CC); /* Done, restore umask, turn off timeout, close file and return */ php_restore_umask(); kill_timeout(r); return OK; } int send_parsed_php(request_rec * r) { return send_php(r, 0, NULL); } int send_parsed_php_source(request_rec * r) { return send_php(r, 1, NULL); } static void destroy_per_dir_entry(php_per_dir_entry *per_dir_entry) { free(per_dir_entry->key); free(per_dir_entry->value); } static void copy_per_dir_entry(php_per_dir_entry *per_dir_entry) { php_per_dir_entry tmp = *per_dir_entry; per_dir_entry->key = (char *) malloc(tmp.key_length+1); memcpy(per_dir_entry->key, tmp.key, tmp.key_length); per_dir_entry->key[per_dir_entry->key_length] = 0; per_dir_entry->value = (char *) malloc(tmp.value_length+1); memcpy(per_dir_entry->value, tmp.value, tmp.value_length); per_dir_entry->value[per_dir_entry->value_length] = 0; } static void php_destroy_per_dir_info(HashTable *per_dir_info) { zend_hash_destroy(per_dir_info); free(per_dir_info); } static void *php_create_dir(pool *p, char *dummy) { HashTable *per_dir_info; per_dir_info = (HashTable *) malloc(sizeof(HashTable)); zend_hash_init(per_dir_info, 5, NULL, (void (*)(void *)) destroy_per_dir_entry, 1); register_cleanup(p, (void *) per_dir_info, (void (*)(void *)) php_destroy_per_dir_info, (void (*)(void *)) zend_hash_destroy); return per_dir_info; } static void *php_merge_dir(pool *p, void *basev, void *addv) { php_per_dir_entry tmp; zend_hash_merge((HashTable *) addv, (HashTable *) basev, (void (*)(void *)) copy_per_dir_entry, &tmp, sizeof(php_per_dir_entry), 0); return addv; } CONST_PREFIX char *php_apache_value_handler_ex(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2, int mode) { php_per_dir_entry per_dir_entry; if (!apache_php_initialized) { apache_php_initialized = 1; #ifdef ZTS tsrm_startup(1, 1, 0); #endif sapi_startup(&sapi_module_conf); php_apache_startup(&sapi_module_conf); } per_dir_entry.type = mode; if (strcasecmp(arg2, "none") == 0) { arg2 = ""; } per_dir_entry.key_length = strlen(arg1); per_dir_entry.value_length = strlen(arg2); per_dir_entry.key = (char *) malloc(per_dir_entry.key_length+1); memcpy(per_dir_entry.key, arg1, per_dir_entry.key_length); per_dir_entry.key[per_dir_entry.key_length] = 0; per_dir_entry.value = (char *) malloc(per_dir_entry.value_length+1); memcpy(per_dir_entry.value, arg2, per_dir_entry.value_length); per_dir_entry.value[per_dir_entry.value_length] = 0; zend_hash_update((HashTable *) conf, per_dir_entry.key, per_dir_entry.key_length, &per_dir_entry, sizeof(php_per_dir_entry), NULL); return NULL; } CONST_PREFIX char *php_apache_value_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2) { return php_apache_value_handler_ex(cmd, conf, arg1, arg2, PHP_INI_PERDIR); } CONST_PREFIX char *php_apache_admin_value_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2) { return php_apache_value_handler_ex(cmd, conf, arg1, arg2, PHP_INI_SYSTEM); } CONST_PREFIX char *php_apache_flag_handler_ex(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2, int mode) { char bool_val[2]; if (!strcasecmp(arg2, "On")) { bool_val[0] = '1'; } else { bool_val[0] = '0'; } bool_val[1] = 0; return php_apache_value_handler_ex(cmd, conf, arg1, bool_val, mode); } CONST_PREFIX char *php_apache_flag_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2) { return php_apache_flag_handler_ex(cmd, conf, arg1, arg2, PHP_INI_PERDIR); } CONST_PREFIX char *php_apache_admin_flag_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2) { return php_apache_flag_handler_ex(cmd, conf, arg1, arg2, PHP_INI_SYSTEM); } int php_xbithack_handler(request_rec * r) { php_apache_info_struct *conf; conf = (php_apache_info_struct *) get_module_config(r->per_dir_config, &php4_module); if (!(r->finfo.st_mode & S_IXUSR)) { r->allowed |= (1 << METHODS) - 1; return DECLINED; } if (conf->xbithack == 0) { r->allowed |= (1 << METHODS) - 1; return DECLINED; } return send_parsed_php(r); } static void apache_php_module_shutdown_wrapper(void) { apache_php_initialized = 0; sapi_module_conf.shutdown(&sapi_module_conf); #if MODULE_MAGIC_NUMBER >= 19970728 /* This function is only called on server exit if the apache API * child_exit handler exists, so shutdown globally */ sapi_shutdown(); #endif #ifdef ZTS tsrm_shutdown(); #endif } #if MODULE_MAGIC_NUMBER >= 19970728 static void php_child_exit_handler(server_rec *s, pool *p) { /* apache_php_initialized = 0; */ sapi_module_conf.shutdown(&sapi_module_conf); #ifdef ZTS tsrm_shutdown(); #endif } #endif void php_init_handler(server_rec *s, pool *p) { register_cleanup(p, NULL, (void (*)(void *))apache_php_module_shutdown_wrapper, (void (*)(void *))php_module_shutdown_for_exec); if (!apache_php_initialized) { apache_php_initialized = 1; #ifdef ZTS tsrm_startup(1, 1, 0); #endif sapi_startup(&sapi_module_conf); php_apache_startup(&sapi_module_conf); } #if MODULE_MAGIC_NUMBER >= 19980527 { PLS_FETCH(); if (PG(expose_php)) { ap_add_version_component("PHP/" PHP_VERSION); } } #endif } #if HAVE_MOD_DAV extern int phpdav_mkcol_test_handler(request_rec *r); extern int phpdav_mkcol_create_handler(request_rec *r); /* conf is being read twice (both here and in send_php()) */ int send_parsed_php_dav_script(request_rec *r) { php_apache_info_struct *conf; conf = (php_apache_info_struct *) get_module_config(r->per_dir_config, &php4_module); return send_php(r, 0, 0, conf->dav_script); } static int php_type_checker(request_rec *r) { php_apache_info_struct *conf; conf = (php_apache_info_struct *)get_module_config(r->per_dir_config, &php4_module); /* If DAV support is enabled, use mod_dav's type checker. */ if (conf->dav_script) { dav_api_set_request_handler(r, send_parsed_php_dav_script); dav_api_set_mkcol_handlers(r, phpdav_mkcol_test_handler, phpdav_mkcol_create_handler); /* leave the rest of the request to mod_dav */ return dav_api_type_checker(r); } return DECLINED; } #else /* HAVE_MOD_DAV */ # define php_type_checker NULL #endif /* HAVE_MOD_DAV */ handler_rec php_handlers[] = { {"application/x-httpd-php", send_parsed_php}, {"application/x-httpd-php-source", send_parsed_php_source}, {"text/html", php_xbithack_handler}, {NULL} }; command_rec php_commands[] = { {"php_value", php_apache_value_handler, NULL, OR_OPTIONS, TAKE2, "PHP Value Modifier"}, {"php_flag", php_apache_flag_handler, NULL, OR_OPTIONS, TAKE2, "PHP Flag Modifier"}, {"php_admin_value", php_apache_admin_value_handler, NULL, ACCESS_CONF|RSRC_CONF, TAKE2, "PHP Value Modifier (Admin)"}, {"php_admin_flag", php_apache_admin_flag_handler, NULL, ACCESS_CONF|RSRC_CONF, TAKE2, "PHP Flag Modifier (Admin)"}, {NULL} }; module MODULE_VAR_EXPORT php4_module = { STANDARD_MODULE_STUFF, php_init_handler, /* initializer */ php_create_dir, /* per-directory config creator */ php_merge_dir, /* dir merger */ NULL, /* per-server config creator */ NULL, /* merge server config */ php_commands, /* command table */ php_handlers, /* handlers */ NULL, /* filename translation */ NULL, /* check_user_id */ NULL, /* check auth */ NULL, /* check access */ php_type_checker, /* type_checker */ NULL, /* fixups */ NULL /* logger */ #if MODULE_MAGIC_NUMBER >= 19970103 ,NULL /* header parser */ #endif #if MODULE_MAGIC_NUMBER >= 19970719 ,NULL /* child_init */ #endif #if MODULE_MAGIC_NUMBER >= 19970728 ,php_child_exit_handler /* child_exit */ #endif #if MODULE_MAGIC_NUMBER >= 19970902 ,NULL /* post read-request */ #endif }; /* * Local variables: * tab-width: 4 * c-basic-offset: 4 * End: */