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php_plugin.c
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php_plugin.c
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#include "common.h"
extern struct uwsgi_server uwsgi;
static sapi_module_struct uwsgi_sapi_module;
static int uwsgi_php_init(void);
typedef size_t php_strlen_size;
typedef zend_long php_long_size;
struct uwsgi_php {
struct uwsgi_string_list *allowed_docroot;
struct uwsgi_string_list *allowed_ext;
struct uwsgi_string_list *allowed_scripts;
struct uwsgi_string_list *index;
struct uwsgi_string_list *set;
struct uwsgi_string_list *append_config;
#if defined(UWSGI_PCRE) || defined(UWSGI_PCRE2)
struct uwsgi_regexp_list *app_bypass;
#endif
struct uwsgi_string_list *vars;
struct uwsgi_string_list *constants;
char *docroot;
char *app;
char *app_qs;
char *fallback;
char *fallback2;
char *fallback_qs;
char *ini_entries;
size_t ini_size;
int dump_config;
char *server_software;
size_t server_software_len;
struct uwsgi_string_list *exec_before;
struct uwsgi_string_list *exec_after;
char *sapi_name;
int sapi_initialized;
HashTable user_config_cache;
struct uwsgi_dyn_dict *mountpoint;
} uphp;
void uwsgi_opt_php_ini(char *opt, char *value, void *foobar) {
uwsgi_sapi_module.php_ini_path_override = uwsgi_str(value);
uwsgi_sapi_module.php_ini_ignore = 1;
}
void uwsgi_opt_early_php(char *opt, char *value, void *foobar) {
uwsgi_php_init();
}
struct uwsgi_option uwsgi_php_options[] = {
{"php-ini", required_argument, 0, "set php.ini path", uwsgi_opt_php_ini, NULL, 0},
{"php-config", required_argument, 0, "set php.ini path", uwsgi_opt_php_ini, NULL, 0},
{"php-ini-append", required_argument, 0, "set php.ini path (append mode)", uwsgi_opt_add_string_list, &uphp.append_config, 0},
{"php-config-append", required_argument, 0, "set php.ini path (append mode)", uwsgi_opt_add_string_list, &uphp.append_config, 0},
{"php-set", required_argument, 0, "set a php config directive", uwsgi_opt_add_string_list, &uphp.set, 0},
{"php-index", required_argument, 0, "list the php index files", uwsgi_opt_add_string_list, &uphp.index, 0},
{"php-docroot", required_argument, 0, "force php DOCUMENT_ROOT", uwsgi_opt_set_str, &uphp.docroot, 0},
{"php-allowed-docroot", required_argument, 0, "list the allowed document roots", uwsgi_opt_add_string_list, &uphp.allowed_docroot, 0},
{"php-allowed-ext", required_argument, 0, "list the allowed php file extensions", uwsgi_opt_add_string_list, &uphp.allowed_ext, 0},
{"php-allowed-script", required_argument, 0, "list the allowed php scripts (require absolute path)", uwsgi_opt_add_string_list, &uphp.allowed_scripts, 0},
{"php-server-software", required_argument, 0, "force php SERVER_SOFTWARE", uwsgi_opt_set_str, &uphp.server_software, 0},
{"php-app", required_argument, 0, "force the php file to run at each request", uwsgi_opt_set_str, &uphp.app, 0},
{"php-app-qs", required_argument, 0, "when in app mode force QUERY_STRING to the specified value + REQUEST_URI", uwsgi_opt_set_str, &uphp.app_qs, 0},
{"php-fallback", required_argument, 0, "run the specified php script when the requested one does not exist", uwsgi_opt_set_str, &uphp.fallback, 0},
{"php-fallback2", required_argument, 0, "run the specified php script relative to the document root when the requested one does not exist", uwsgi_opt_set_str, &uphp.fallback2, 0},
{"php-fallback-qs", required_argument, 0, "php-fallback with QUERY_STRING set", uwsgi_opt_set_str, &uphp.fallback_qs, 0},
#if defined(UWSGI_PCRE) || defined(UWSGI_PCRE2)
{"php-app-bypass", required_argument, 0, "if the regexp matches the uri the --php-app is bypassed", uwsgi_opt_add_regexp_list, &uphp.app_bypass, 0},
#endif
{"php-var", required_argument, 0, "add/overwrite a CGI variable at each request", uwsgi_opt_add_string_list, &uphp.vars, 0},
{"php-constant", required_argument, 0, "define a php constant for each request", uwsgi_opt_add_string_list, &uphp.constants, 0},
{"php-dump-config", no_argument, 0, "dump php config (if modified via --php-set or append options)", uwsgi_opt_true, &uphp.dump_config, 0},
{"php-exec-before", required_argument, 0, "run specified php code before the requested script", uwsgi_opt_add_string_list, &uphp.exec_before, 0},
{"php-exec-begin", required_argument, 0, "run specified php code before the requested script", uwsgi_opt_add_string_list, &uphp.exec_before, 0},
{"php-exec-after", required_argument, 0, "run specified php code after the requested script", uwsgi_opt_add_string_list, &uphp.exec_after, 0},
{"php-exec-end", required_argument, 0, "run specified php code after the requested script", uwsgi_opt_add_string_list, &uphp.exec_after, 0},
{"php-sapi-name", required_argument, 0, "hack the sapi name (required for enabling zend opcode cache)", uwsgi_opt_set_str, &uphp.sapi_name, 0},
{"early-php", no_argument, 0, "initialize an early perl interpreter shared by all loaders", uwsgi_opt_early_php, NULL, UWSGI_OPT_IMMEDIATE},
{"early-php-sapi-name", required_argument, 0, "hack the sapi name (required for enabling zend opcode cache)", uwsgi_opt_set_str, &uphp.sapi_name, UWSGI_OPT_IMMEDIATE},
{"php-mount", required_argument, 0, "add a php mountpoint", uwsgi_opt_add_dyn_dict, &uphp.mountpoint, 0},
UWSGI_END_OF_OPTIONS
};
static size_t sapi_uwsgi_ub_write(const char *str, size_t str_length)
{
struct wsgi_request *wsgi_req = (struct wsgi_request *) SG(server_context);
uwsgi_response_write_body_do(wsgi_req, (char *) str, str_length);
if (wsgi_req->write_errors > uwsgi.write_errors_tolerance) {
php_handle_aborted_connection();
return -1;
}
return str_length;
}
static int sapi_uwsgi_send_headers(sapi_headers_struct *sapi_headers)
{
sapi_header_struct *h;
zend_llist_position pos;
if (SG(request_info).no_headers == 1) {
return SAPI_HEADER_SENT_SUCCESSFULLY;
}
struct wsgi_request *wsgi_req = (struct wsgi_request *) SG(server_context);
if (!SG(sapi_headers).http_status_line) {
char status[4];
int hrc = SG(sapi_headers).http_response_code;
if (!hrc) hrc = 200;
uwsgi_num2str2n(hrc, status, 4);
if (uwsgi_response_prepare_headers(wsgi_req, status, 3))
return SAPI_HEADER_SEND_FAILED;
}
else {
char *sl = SG(sapi_headers).http_status_line;
if (uwsgi_response_prepare_headers(wsgi_req, sl + 9 , strlen(sl + 9)))
return SAPI_HEADER_SEND_FAILED;
}
h = zend_llist_get_first_ex(&sapi_headers->headers, &pos);
while (h) {
uwsgi_response_add_header(wsgi_req, NULL, 0, h->header, h->header_len);
h = zend_llist_get_next_ex(&sapi_headers->headers, &pos);
}
return SAPI_HEADER_SENT_SUCCESSFULLY;
}
static size_t sapi_uwsgi_read_post(char *buffer, size_t count_bytes)
{
uint read_bytes = 0;
struct wsgi_request *wsgi_req = (struct wsgi_request *) SG(server_context);
count_bytes = MIN(count_bytes, wsgi_req->post_cl - SG(read_post_bytes));
while (read_bytes < count_bytes) {
ssize_t rlen = 0;
char *buf = uwsgi_request_body_read(wsgi_req, count_bytes - read_bytes, &rlen);
if (buf == uwsgi.empty) break;
if (buf) {
memcpy(buffer, buf, rlen);
read_bytes += rlen;
continue;
}
break;
}
return read_bytes;
}
static char *sapi_uwsgi_read_cookies()
{
uint16_t len = 0;
struct wsgi_request *wsgi_req = (struct wsgi_request *) SG(server_context);
char *cookie = uwsgi_get_var(wsgi_req, (char *)"HTTP_COOKIE", 11, &len);
if (cookie) {
return estrndup(cookie, len);
}
return NULL;
}
static void sapi_uwsgi_register_variables(zval *track_vars_array)
{
int i;
struct wsgi_request *wsgi_req = (struct wsgi_request *) SG(server_context);
php_import_environment_variables(track_vars_array);
if (uphp.server_software) {
if (!uphp.server_software_len) uphp.server_software_len = strlen(uphp.server_software);
php_register_variable_safe("SERVER_SOFTWARE", uphp.server_software, uphp.server_software_len, track_vars_array);
}
else {
php_register_variable_safe("SERVER_SOFTWARE", "uWSGI", 5, track_vars_array);
}
for (i = 0; i < wsgi_req->var_cnt; i += 2) {
php_register_variable_safe( estrndup(wsgi_req->hvec[i].iov_base, wsgi_req->hvec[i].iov_len),
wsgi_req->hvec[i + 1].iov_base, wsgi_req->hvec[i + 1].iov_len,
track_vars_array);
}
php_register_variable_safe("PATH_INFO", wsgi_req->path_info, wsgi_req->path_info_len, track_vars_array);
if (wsgi_req->query_string_len > 0) {
php_register_variable_safe("QUERY_STRING", wsgi_req->query_string, wsgi_req->query_string_len, track_vars_array);
}
php_register_variable_safe("SCRIPT_NAME", wsgi_req->script_name, wsgi_req->script_name_len, track_vars_array);
php_register_variable_safe("SCRIPT_FILENAME", wsgi_req->file, wsgi_req->file_len, track_vars_array);
php_register_variable_safe("DOCUMENT_ROOT", wsgi_req->document_root, wsgi_req->document_root_len, track_vars_array);
if (wsgi_req->path_info_len) {
char *path_translated = ecalloc(1, wsgi_req->file_len + wsgi_req->path_info_len + 1);
memcpy(path_translated, wsgi_req->file, wsgi_req->file_len);
memcpy(path_translated + wsgi_req->file_len, wsgi_req->path_info, wsgi_req->path_info_len);
php_register_variable_safe("PATH_TRANSLATED", path_translated, wsgi_req->file_len + wsgi_req->path_info_len , track_vars_array);
}
else {
php_register_variable_safe("PATH_TRANSLATED", "", 0, track_vars_array);
}
php_register_variable_safe("PHP_SELF", wsgi_req->script_name, wsgi_req->script_name_len, track_vars_array);
struct uwsgi_string_list *usl = uphp.vars;
while(usl) {
char *equal = strchr(usl->value, '=');
if (equal) {
php_register_variable_safe( estrndup(usl->value, equal-usl->value),
equal+1, strlen(equal+1), track_vars_array);
}
usl = usl->next;
}
}
static sapi_module_struct uwsgi_sapi_module;
void uwsgi_php_append_config(char *filename) {
size_t file_size = 0;
char *file_content = uwsgi_open_and_read(filename, &file_size, 1, NULL);
uphp.ini_entries = realloc(uphp.ini_entries, uphp.ini_size + file_size);
memcpy(uphp.ini_entries + uphp.ini_size, file_content, file_size);
uphp.ini_size += file_size-1;
free(file_content);
uwsgi_sapi_module.ini_entries = uphp.ini_entries;
}
void uwsgi_php_set(char *opt) {
uphp.ini_entries = realloc(uphp.ini_entries, uphp.ini_size + strlen(opt)+2);
memcpy(uphp.ini_entries + uphp.ini_size, opt, strlen(opt));
uphp.ini_size += strlen(opt)+1;
uphp.ini_entries[uphp.ini_size-1] = '\n';
uphp.ini_entries[uphp.ini_size] = 0;
uwsgi_sapi_module.ini_entries = uphp.ini_entries;
}
extern ps_module ps_mod_uwsgi;
PHP_MINIT_FUNCTION(uwsgi_php_minit) {
php_session_register_module(&ps_mod_uwsgi);
struct uwsgi_string_list *usl = uphp.constants;
while(usl) {
char *equal = strchr(usl->value, '=');
if (equal) {
size_t name_len = equal - usl->value;
char *name = usl->value;
char *strval = equal + 1;
equal = NULL;
zend_register_string_constant(name, name_len, strval, CONST_CS | CONST_PERSISTENT, module_number);
}
usl = usl->next;
}
return SUCCESS;
}
PHP_FUNCTION(uwsgi_version) {
RETURN_STRING(UWSGI_VERSION);
}
PHP_FUNCTION(uwsgi_worker_id) {
RETURN_LONG(uwsgi.mywid);
}
PHP_FUNCTION(uwsgi_masterpid) {
if (uwsgi.master_process) {
RETURN_LONG(uwsgi.workers[0].pid);
}
RETURN_LONG(0);
}
PHP_FUNCTION(uwsgi_cache_exists) {
char *key = NULL;
php_strlen_size keylen = 0;
char *cache = NULL;
php_strlen_size cachelen = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s|s", &key, &keylen, &cache, &cachelen) == FAILURE) {
RETURN_NULL();
}
if (uwsgi_cache_magic_exists(key, keylen, cache)) {
RETURN_TRUE;
}
RETURN_NULL();
}
PHP_FUNCTION(uwsgi_cache_clear) {
char *cache = NULL;
php_strlen_size cachelen = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|s", &cache, &cachelen) == FAILURE) {
RETURN_NULL();
}
if (!uwsgi_cache_magic_clear(cache)) {
RETURN_TRUE;
}
RETURN_NULL();
}
PHP_FUNCTION(uwsgi_cache_del) {
char *key = NULL;
php_strlen_size keylen = 0;
char *cache = NULL;
php_strlen_size cachelen = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s|s", &key, &keylen, &cache, &cachelen) == FAILURE) {
RETURN_NULL();
}
if (!uwsgi_cache_magic_del(key, keylen, cache)) {
RETURN_TRUE;
}
RETURN_NULL();
}
PHP_FUNCTION(uwsgi_cache_get) {
char *key = NULL;
php_strlen_size keylen = 0;
char *cache = NULL;
php_strlen_size cachelen = 0;
uint64_t valsize;
if (!uwsgi.caches)
RETURN_NULL();
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s|s", &key, &keylen, &cache, &cachelen) == FAILURE) {
RETURN_NULL();
}
char *value = uwsgi_cache_magic_get(key, keylen, &valsize, NULL, cache);
if (value) {
char *ret = estrndup(value, valsize);
free(value);
RETURN_STRING(ret);
}
RETURN_NULL();
}
PHP_FUNCTION(uwsgi_cache_set) {
char *key = NULL;
php_strlen_size keylen = 0;
char *value = NULL;
php_strlen_size vallen = 0;
php_long_size expires = 0;
char *cache = NULL;
php_strlen_size cachelen = 0;
if (!uwsgi.caches)
RETURN_NULL();
if (zend_parse_parameters(ZEND_NUM_ARGS(), "ss|ls", &key, &keylen, &value, &vallen, &expires, &cache, &cachelen) == FAILURE) {
RETURN_NULL();
}
if (!uwsgi_cache_magic_set(key, keylen, value, vallen, expires, 0, cache)) {
RETURN_TRUE;
}
RETURN_NULL();
}
PHP_FUNCTION(uwsgi_cache_update) {
char *key = NULL;
php_strlen_size keylen = 0;
char *value = NULL;
php_strlen_size vallen = 0;
php_long_size expires = 0;
char *cache = NULL;
php_strlen_size cachelen = 0;
if (!uwsgi.caches)
RETURN_NULL();
if (zend_parse_parameters(ZEND_NUM_ARGS(), "ss|ls", &key, &keylen, &value, &vallen, &expires, &cache, &cachelen) == FAILURE) {
RETURN_NULL();
}
if (!uwsgi_cache_magic_set(key, keylen, value, vallen, expires, UWSGI_CACHE_FLAG_UPDATE, cache)) {
RETURN_TRUE;
}
RETURN_NULL();
}
PHP_FUNCTION(uwsgi_rpc) {
int num_args = 0;
int i;
char *node = NULL;
char *func = NULL;
zval ***varargs = NULL;
zval *z_current_obj;
char *argv[256];
uint16_t argvs[256];
uint64_t size = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "+", &varargs, &num_args) == FAILURE) {
RETURN_NULL();
}
if (num_args < 2)
goto clear;
if (num_args > 256 + 2)
goto clear;
z_current_obj = *varargs[0];
if (Z_TYPE_P(z_current_obj) != IS_STRING) {
goto clear;
}
node = Z_STRVAL_P(z_current_obj);
z_current_obj = *varargs[1];
if (Z_TYPE_P(z_current_obj) != IS_STRING) {
goto clear;
}
func = Z_STRVAL_P(z_current_obj);
for(i=0;i<(num_args-2);i++) {
z_current_obj = *varargs[i+2];
if (Z_TYPE_P(z_current_obj) != IS_STRING) {
goto clear;
}
argv[i] = Z_STRVAL_P(z_current_obj);
argvs[i] = Z_STRLEN_P(z_current_obj);
}
// response must always be freed
char *response = uwsgi_do_rpc(node, func, num_args - 2, argv, argvs, &size);
if (response) {
// here we do not free varargs for performance reasons
char *ret = estrndup(response, size);
free(response);
RETURN_STRING(ret);
}
clear:
efree(varargs);
RETURN_NULL();
}
PHP_FUNCTION(uwsgi_setprocname) {
char *name;
int name_len;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &name, &name_len) == FAILURE) {
RETURN_NULL();
}
uwsgi_set_processname(estrndup(name, name_len));
RETURN_NULL();
}
PHP_FUNCTION(uwsgi_signal) {
long long_signum;
uint8_t signum = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &long_signum) == FAILURE) {
RETURN_NULL();
}
signum = (uint8_t) long_signum;
uwsgi_signal_send(uwsgi.signal_socket, signum);
RETURN_NULL();
}
ZEND_BEGIN_ARG_INFO_EX(arginfo_void, 0, 0, 0)
ZEND_END_ARG_INFO()
zend_function_entry uwsgi_php_functions[] = {
PHP_FE(uwsgi_version, arginfo_void)
PHP_FE(uwsgi_setprocname, arginfo_void)
PHP_FE(uwsgi_worker_id, arginfo_void)
PHP_FE(uwsgi_masterpid, arginfo_void)
PHP_FE(uwsgi_signal, arginfo_void)
PHP_FE(uwsgi_rpc, arginfo_void)
PHP_FE(uwsgi_cache_get, arginfo_void)
PHP_FE(uwsgi_cache_set, arginfo_void)
PHP_FE(uwsgi_cache_update, arginfo_void)
PHP_FE(uwsgi_cache_del, arginfo_void)
PHP_FE(uwsgi_cache_clear, arginfo_void)
PHP_FE(uwsgi_cache_exists, arginfo_void)
{ NULL, NULL, NULL},
};
PHP_MINFO_FUNCTION(uwsgi_php_minfo) {
php_info_print_table_start( );
php_info_print_table_row(2, "uwsgi api", "enabled");
if (uwsgi.caches) {
php_info_print_table_row(2, "uwsgi cache", "enabled");
}
else {
php_info_print_table_row(2, "uwsgi cache", "disabled");
}
php_info_print_table_end( );
}
static zend_module_entry uwsgi_module_entry = {
STANDARD_MODULE_HEADER,
"uwsgi",
uwsgi_php_functions,
PHP_MINIT(uwsgi_php_minit),
NULL,
NULL,
NULL,
PHP_MINFO(uwsgi_php_minfo),
UWSGI_VERSION,
STANDARD_MODULE_PROPERTIES
};
typedef struct _user_config_cache_entry {
time_t expires;
HashTable *user_config;
} user_config_cache_entry;
#if (PHP_MAJOR_VERSION >= 7)
static void user_config_cache_entry_dtor(zval *el) {
user_config_cache_entry *entry = (user_config_cache_entry *)Z_PTR_P(el);
#else
static void user_config_cache_entry_dtor(user_config_cache_entry *entry) {
#endif
zend_hash_destroy(entry->user_config);
free(entry->user_config);
free(entry);
}
static void activate_user_config(const char *filename, const char *doc_root, size_t doc_root_len) {
char *ptr;
user_config_cache_entry *new_entry, *entry;
time_t request_time = (time_t)sapi_get_request_time();
// get dirname (path) from filename
size_t path_len = (strrchr(filename, DEFAULT_SLASH) - filename) + 1;
char path[path_len];
memcpy(path, filename, path_len);
path[path_len] = '\0';
// get or create entry from cache
#if (PHP_MAJOR_VERSION >= 7)
if ((entry = zend_hash_str_find_ptr(&uphp.user_config_cache, path, path_len)) == NULL) {
#else
if (zend_hash_find(&uphp.user_config_cache, path, path_len + 1, (void **) &entry) == FAILURE) {
#endif
new_entry = pemalloc(sizeof(user_config_cache_entry), 1);
new_entry->expires = 0;
new_entry->user_config = (HashTable *) pemalloc(sizeof(HashTable), 1);
// make zend_hash to store all user.ini settings.
zend_hash_init(new_entry->user_config, 0, NULL, (dtor_func_t) config_zval_dtor, 1);
#if (PHP_MAJOR_VERSION >= 7)
entry = zend_hash_str_update_ptr(&uphp.user_config_cache, path, path_len, new_entry);
#else
zend_hash_update(&uphp.user_config_cache, path, path_len + 1, new_entry, sizeof(user_config_cache_entry), (void **) &entry);
#endif
}
if (request_time > entry->expires) {
// clear the expired config
zend_hash_clean(entry->user_config);
// set pointer to end of docroot
ptr = path + (doc_root_len - 1);
// parse all user.ini files starting from docroot.
while ((ptr = strchr(ptr, DEFAULT_SLASH)) != NULL) {
*ptr = 0;
php_parse_user_ini_file(path, PG(user_ini_filename), entry->user_config);
*ptr = '/';
ptr++;
}
// set (new) expiry time
entry->expires = request_time + PG(user_ini_cache_ttl);
}
// activate all user.ini variables
php_ini_activate_config(entry->user_config, PHP_INI_PERDIR, PHP_INI_STAGE_HTACCESS);
}
static int php_uwsgi_startup(sapi_module_struct *sapi_module)
{
#if ((PHP_MAJOR_VERSION >= 8) && (PHP_MINOR_VERSION >= 2))
if (php_module_startup(&uwsgi_sapi_module, &uwsgi_module_entry)==FAILURE) {
#else
if (php_module_startup(&uwsgi_sapi_module, &uwsgi_module_entry, 1)==FAILURE) {
#endif
return FAILURE;
} else {
return SUCCESS;
}
}
#if (PHP_MAJOR_VERSION >= 8)
static void sapi_uwsgi_log_message(const char *message, int syslog_type_int) {
#elif ((PHP_MAJOR_VERSION == 7) && (PHP_MINOR_VERSION >= 1))
static void sapi_uwsgi_log_message(char *message, int syslog_type_int) {
#else
static void sapi_uwsgi_log_message(char *message) {
#endif
uwsgi_log("%s\n", message);
}
static sapi_module_struct uwsgi_sapi_module = {
"uwsgi",
"uWSGI/php",
php_uwsgi_startup,
php_module_shutdown_wrapper,
NULL, /* activate */
NULL, /* deactivate */
sapi_uwsgi_ub_write,
NULL,
NULL, /* get uid */
NULL, /* getenv */
php_error,
NULL,
sapi_uwsgi_send_headers,
NULL,
sapi_uwsgi_read_post,
sapi_uwsgi_read_cookies,
sapi_uwsgi_register_variables,
sapi_uwsgi_log_message, /* Log message */
NULL, /* Get request time */
NULL, /* Child terminate */
STANDARD_SAPI_MODULE_PROPERTIES
};
static void uwsgi_php_init_mount(struct uwsgi_dyn_dict *mount_dict) {
struct uwsgi_dyn_dict *udd = mount_dict;
while (udd) {
char *orig_dest = udd->value;
udd->value = uwsgi_expand_path(udd->value, udd->vallen, NULL);
udd->vallen = strlen(udd->value);
if (!udd->value) {
uwsgi_log("Unable to expand php mountpoint to %s\n", orig_dest);
exit(1);
}
udd = udd->next;
}
}
static int uwsgi_php_init(void) {
struct uwsgi_string_list *pset = uphp.set;
struct uwsgi_string_list *append_config = uphp.append_config;
if (!uphp.sapi_initialized) {
#ifdef ZTS
tsrm_startup(1, 1, 0, NULL);
#endif
sapi_startup(&uwsgi_sapi_module);
uphp.sapi_initialized = 1;
}
// applying custom options
while(append_config) {
uwsgi_php_append_config(append_config->value);
append_config = append_config->next;
}
while(pset) {
uwsgi_php_set(pset->value);
pset = pset->next;
}
if (uphp.dump_config) {
uwsgi_log("--- PHP custom config ---\n\n");
uwsgi_log("%s\n", uwsgi_sapi_module.ini_entries);
uwsgi_log("--- end of PHP custom config ---\n");
}
zend_hash_init(&uphp.user_config_cache, 0, NULL, (dtor_func_t) user_config_cache_entry_dtor, 1);
// fix docroot
if (uphp.docroot) {
char *orig_docroot = uphp.docroot;
uphp.docroot = uwsgi_expand_path(uphp.docroot, strlen(uphp.docroot), NULL);
if (!uphp.docroot) {
uwsgi_log("unable to set php docroot to %s\n", orig_docroot);
exit(1);
}
}
uwsgi_php_init_mount(uphp.mountpoint);
if (uphp.sapi_name) {
uwsgi_sapi_module.name = uphp.sapi_name;
}
uwsgi_sapi_module.startup(&uwsgi_sapi_module);
uwsgi_log("PHP %s initialized\n", PHP_VERSION);
return 0;
}
int uwsgi_php_walk(struct wsgi_request *wsgi_req, char *full_path, char *docroot, size_t docroot_len, char **path_info) {
// and now start walking...
uint16_t i;
char *ptr = wsgi_req->path_info;
char *dst = full_path+docroot_len;
char *part = ptr;
int part_size = 0;
struct stat st;
if (wsgi_req->path_info_len == 0) return 0;
if (ptr[0] == '/') part_size++;
for(i=0;i<wsgi_req->path_info_len;i++) {
if (ptr[i] == '/') {
memcpy(dst, part, part_size-1);
*(dst+part_size-1) = 0;
if (stat(full_path, &st)) {
return -1;
}
// not a directory, stop walking
if (!S_ISDIR(st.st_mode)) {
if (i < (wsgi_req->path_info_len)-1) {
*path_info = ptr + i;
}
return 0;
}
// check for buffer overflow !!!
*(dst+part_size-1) = '/';
*(dst+part_size) = 0;
dst += part_size ;
part_size = 0;
part = ptr + i + 1;
}
part_size++;
}
if (part < wsgi_req->path_info+wsgi_req->path_info_len) {
memcpy(dst, part, part_size-1);
*(dst+part_size-1) = 0;
if (stat(full_path, &st)) {
return -1;
}
}
return 0;
}
static char *uwsgi_php_get_mount(char *path_info, uint16_t path_info_len, struct uwsgi_dyn_dict *mount_dict, int *discard_base) {
int best_found = 0;
struct uwsgi_dyn_dict *udd = mount_dict, *chosen = NULL;
while (udd) {
if (mount_dict->vallen) {
if (!uwsgi_starts_with(path_info, path_info_len, udd->key, udd->keylen)) {
if (udd->keylen > best_found) {
best_found = udd->keylen;
chosen = udd;
}
}
}
udd = udd->next;
}
if (chosen) {
*discard_base = chosen->keylen;
if (chosen->key[chosen->keylen-1] == '/') {
*discard_base = *discard_base - 1;
}
return chosen->value;
} else {
return NULL;
}
}
int uwsgi_php_request(struct wsgi_request *wsgi_req) {
char real_filename[PATH_MAX+1];
char *path_info = NULL;
size_t real_filename_len = 0;
struct stat php_stat;
char *filename = NULL;
int force_empty_script_name = 0;
zend_file_handle file_handle;
SG(server_context) = (void *) wsgi_req;
if (uwsgi_parse_vars(wsgi_req)) {
return -1;
}
char *orig_path_info = wsgi_req->path_info;
uint16_t orig_path_info_len = wsgi_req->path_info_len;
int discard_base = 0;
char *mount_docroot = uwsgi_php_get_mount(wsgi_req->path_info, wsgi_req->path_info_len, uphp.mountpoint, &discard_base);
if (mount_docroot) {
wsgi_req->document_root = mount_docroot;
wsgi_req->path_info = wsgi_req->path_info+discard_base;
wsgi_req->path_info_len = wsgi_req->path_info_len-discard_base;
} else if (uphp.docroot) {
wsgi_req->document_root = uphp.docroot;
}
// fallback to cwd
else if (!wsgi_req->document_root_len) {
wsgi_req->document_root = uwsgi.cwd;
}
else {
// explode DOCUMENT_ROOT (both for security and sanity checks)
// this memory will be cleared on request end
char *sanitized_docroot = ecalloc(1, PATH_MAX+1);
if (!uwsgi_expand_path(wsgi_req->document_root, wsgi_req->document_root_len, sanitized_docroot)) {
efree(sanitized_docroot);
return -1;
}
wsgi_req->document_root = sanitized_docroot;
}
// fix document_root_len
wsgi_req->document_root_len = strlen(wsgi_req->document_root);
if (uphp.app) {
#if defined(UWSGI_PCRE) || defined(UWSGI_PCRE2)
struct uwsgi_regexp_list *bypass = uphp.app_bypass;
while (bypass) {
#ifdef UWSGI_PCRE2
if (uwsgi_regexp_match(bypass->pattern, wsgi_req->uri, wsgi_req->uri_len) >= 0) {
#else
if (uwsgi_regexp_match(bypass->pattern, bypass->pattern_extra, wsgi_req->uri, wsgi_req->uri_len) >= 0) {
#endif
goto oldstyle;
}
bypass = bypass->next;
}
#endif
strncpy(real_filename, uphp.app, PATH_MAX);
real_filename[PATH_MAX-1] = '\0';
real_filename_len = strlen(real_filename);
if (wsgi_req->path_info_len == 1 && wsgi_req->path_info[0] == '/') {
goto appready;
}
if (uphp.app_qs) {
size_t app_qs_len = strlen(uphp.app_qs);
size_t qs_len = wsgi_req->path_info_len + app_qs_len;
if (wsgi_req->query_string_len > 0) {
qs_len += 1 + wsgi_req->query_string_len;
}
char *qs = ecalloc(1, qs_len+1);
memcpy(qs, uphp.app_qs, app_qs_len);
memcpy(qs+app_qs_len, wsgi_req->path_info, wsgi_req->path_info_len);
if (wsgi_req->query_string_len > 0) {
char *ptr = qs+app_qs_len+wsgi_req->path_info_len;
*ptr = '&';
memcpy(ptr+1, wsgi_req->query_string, wsgi_req->query_string_len);
}
wsgi_req->query_string = qs;
wsgi_req->query_string_len = qs_len;
}
appready:
wsgi_req->path_info = "";
wsgi_req->path_info_len = 0;
force_empty_script_name = 1;
goto secure2;
}
#if defined(UWSGI_PCRE) || defined(UWSGI_PCRE2)
oldstyle:
#endif
filename = uwsgi_concat4n(wsgi_req->document_root, wsgi_req->document_root_len, "/", 1, wsgi_req->path_info, wsgi_req->path_info_len, "", 0);
activate_user_config(filename, wsgi_req->document_root, wsgi_req->document_root_len);
if (uwsgi_php_walk(wsgi_req, filename, wsgi_req->document_root, wsgi_req->document_root_len, &path_info)) {
free(filename);
if (uphp.fallback || uphp.fallback2) {
if (uphp.fallback) {
filename = uwsgi_str(uphp.fallback);
} else {
filename = uwsgi_concat2n(wsgi_req->document_root, strlen(wsgi_req->document_root),
uphp.fallback2, strlen(uphp.fallback2));
wsgi_req->script_name = uphp.fallback2;
wsgi_req->script_name_len = strlen(uphp.fallback2);
}
if (uphp.fallback_qs) {
size_t fqs_len = strlen(uphp.fallback_qs);
size_t new_qs_len = orig_path_info_len
+ fqs_len + 1
+ wsgi_req->query_string_len;
char *new_qs = ecalloc(1, new_qs_len + 1);
memcpy(new_qs, uphp.fallback_qs, fqs_len);
new_qs[fqs_len] = '=';
memcpy(new_qs + fqs_len + 1, orig_path_info, orig_path_info_len);
if (wsgi_req->query_string_len) {
new_qs[fqs_len + 1 + orig_path_info_len] = '&';
memcpy(new_qs + fqs_len + 2 + orig_path_info_len,
wsgi_req->query_string, wsgi_req->query_string_len);
}
wsgi_req->query_string = new_qs;
wsgi_req->query_string_len = new_qs_len;
}
}
else {
uwsgi_404(wsgi_req);
return -1;
}
}
if (path_info) {
wsgi_req->path_info = path_info;
wsgi_req->path_info_len = orig_path_info_len - (path_info - orig_path_info);
}
else {
wsgi_req->path_info = "";
wsgi_req->path_info_len = 0;
}
if (!realpath(filename, real_filename)) {
free(filename);
uwsgi_404(wsgi_req);
return -1;
}
free(filename);
real_filename_len = strlen(real_filename);
if (uphp.allowed_docroot) {
struct uwsgi_string_list *usl = uphp.allowed_docroot;
while(usl) {
if (!uwsgi_starts_with(real_filename, real_filename_len, usl->value, usl->len)) {
goto secure;
}
usl = usl->next;
}
uwsgi_403(wsgi_req);
uwsgi_log("PHP security error: %s is not under an allowed docroot\n", real_filename);
return -1;
}
secure: