/* +----------------------------------------------------------------------+ | 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 | | (with helpful hints from Dean Gaudet | | PHP 4.0 patches by Zeev Suraski | +----------------------------------------------------------------------+ */ /* $Id$ */ #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.h" #include "php_ini.h" #include "SAPI.h" #include "main.h" #include "util_script.h" #include "php_version.h" #include "mod_php4.h" #if HAVE_MOD_DAV # include "mod_dav.h" #endif PHPAPI int apache_php_module_main(request_rec *r, int fd, int display_source_mode SLS_DC); /* ### 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=0; typedef struct _php_per_dir_entry { char *key; char *value; uint key_length; uint value_length; int type; } php_per_dir_entry; #if WIN32|WINNT /* popenf isn't working on Windows, use open instead*/ # ifdef popenf # undef popenf # endif # define popenf(p,n,f,m) open((n),(f),(m)) # ifdef pclosef # undef pclosef # endif # define pclosef(p,f) close(f) #else # define php3i_popenf(p,n,f,m) popenf((p),(n),(f),(m)) #endif php_apache_info_struct php_apache_info; /* active config */ void php_save_umask() { saved_umask = umask(077); umask(saved_umask); } static int zend_apache_ub_write(const char *str, uint str_length) { SLS_FETCH(); if (SG(server_context)) { return rwrite(str, str_length, (request_rec *) SG(server_context)); } else { return fwrite(str, 1, str_length, stdout); } } 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 { 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) { ((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; } sapi_module_struct sapi_module = { "PHP Language", /* name */ php_module_startup, /* startup */ php_module_shutdown_wrapper, /* shutdown */ zend_apache_ub_write, /* unbuffered write */ php3_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 */ }; void php_restore_umask() { 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); if (r->headers_in) { authorization = table_get(r->headers_in, "Authorization"); } if (authorization && !auth_type(r) && !strcmp(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) { 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); } int send_php(request_rec *r, int display_source_mode, char *filename) { int fd, retval; HashTable *per_dir_conf; SLS_FETCH(); if (setjmp(EG(bailout))!=0) { return OK; } per_dir_conf = (HashTable *) get_module_config(r->per_dir_config, &php4_module); 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 NOT_FOUND; } /* 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 = "text/html"; r->allowed |= (1 << METHODS) - 1; return DECLINED; } if (filename == NULL) { filename = r->filename; } /* Open the file */ if ((fd = popenf(r->pool, filename, O_RDONLY, 0)) == -1) { log_reason("file permissions deny server access", filename, r); return FORBIDDEN; } /* 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 HTML. Individual scripts may change this further down the line */ r->content_type = "text/html"; /* Init timeout */ hard_timeout("send", r); SG(server_context) = r; php_save_umask(); chdir_file(filename); add_common_vars(r); add_cgi_vars(r); init_request_info(SLS_C); apache_php_module_main(r, fd, display_source_mode SLS_CC); /* Done, restore umask, turn off timeout, close file and return */ php_restore_umask(); kill_timeout(r); pclosef(r->pool, fd); 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 int destroy_per_dir_entry(php_per_dir_entry *per_dir_entry) { free(per_dir_entry->key); free(per_dir_entry->value); return 1; } 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; } /* * Create the per-directory config structure with defaults */ 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, (int (*)(void *)) destroy_per_dir_entry, 1); register_cleanup(p, (void *) per_dir_info, (void (*)(void *)) zend_hash_destroy, (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; } #if MODULE_MAGIC_NUMBER > 19961007 #define CONST_PREFIX const #else #define CONST_PREFIX #endif CONST_PREFIX char *php_apache_value_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2) { php_per_dir_entry per_dir_entry; if (!apache_php_initialized) { sapi_startup(&sapi_module); php_module_startup(&sapi_module); apache_php_initialized = 1; } per_dir_entry.type = PHP_INI_PERDIR; 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_flag_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2) { char bool_val[2]; if (!strcmp(arg2, "On")) { bool_val[0] = '1'; } else { bool_val[0] = '0'; } bool_val[1] = 0; return php_apache_value_handler(cmd, conf, arg1, bool_val); } 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() { apache_php_initialized = 0; sapi_module.shutdown(&sapi_module); } void php_init_handler(server_rec *s, pool *p) { register_cleanup(p, NULL, apache_php_module_shutdown_wrapper, php_module_shutdown_for_exec); if (!apache_php_initialized) { sapi_startup(&sapi_module); php_module_startup(&sapi_module); apache_php_initialized = 1; } #if MODULE_MAGIC_NUMBER >= 19980527 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[] = { {"php4_value", php_apache_value_handler, NULL, OR_OPTIONS, TAKE2, "PHP Value Modifier"}, {"php4_flag", php_apache_flag_handler, NULL, OR_OPTIONS, TAKE2, "PHP Flag Modifier"}, {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 ,NULL /* child_exit */ #endif #if MODULE_MAGIC_NUMBER >= 19970902 ,NULL /* post read-request */ #endif }; /* * Local variables: * tab-width: 4 * c-basic-offset: 4 * End: */