--- /dev/null
+/*
+ +--------------------------------------------------------------------+
+ | PECL :: http |
+ +--------------------------------------------------------------------+
+ | Redistribution and use in source and binary forms, with or without |
+ | modification, are permitted provided that the conditions mentioned |
+ | in the accompanying LICENSE file are met. |
+ +--------------------------------------------------------------------+
+ | Copyright (c) 2004-2013, Michael Wallner <mike@php.net> |
+ +--------------------------------------------------------------------+
+*/
+
+#include "php_http_api.h"
+
+typedef struct php_http_header_parser_state_spec {
+ php_http_header_parser_state_t state;
+ unsigned need_data:1;
+} php_http_header_parser_state_spec_t;
+
+static const php_http_header_parser_state_spec_t php_http_header_parser_states[] = {
+ {PHP_HTTP_HEADER_PARSER_STATE_START, 1},
+ {PHP_HTTP_HEADER_PARSER_STATE_KEY, 1},
+ {PHP_HTTP_HEADER_PARSER_STATE_VALUE, 1},
+ {PHP_HTTP_HEADER_PARSER_STATE_VALUE_EX, 1},
+ {PHP_HTTP_HEADER_PARSER_STATE_HEADER_DONE, 0},
+ {PHP_HTTP_HEADER_PARSER_STATE_DONE, 0}
+};
+
+php_http_header_parser_t *php_http_header_parser_init(php_http_header_parser_t *parser TSRMLS_DC)
+{
+ if (!parser) {
+ parser = emalloc(sizeof(*parser));
+ }
+ memset(parser, 0, sizeof(*parser));
+
+ TSRMLS_SET_CTX(parser->ts);
+
+ return parser;
+}
+
+php_http_header_parser_state_t php_http_header_parser_state_push(php_http_header_parser_t *parser, unsigned argc, ...)
+{
+ va_list va_args;
+ unsigned i;
+ php_http_header_parser_state_t state = 0;
+
+ va_start(va_args, argc);
+ for (i = 0; i < argc; ++i) {
+ state = va_arg(va_args, php_http_header_parser_state_t);
+ zend_stack_push(&parser->stack, &state, sizeof(state));
+ }
+ va_end(va_args);
+
+ return state;
+}
+
+php_http_header_parser_state_t php_http_header_parser_state_is(php_http_header_parser_t *parser)
+{
+ php_http_header_parser_state_t *state;
+
+ if (SUCCESS == zend_stack_top(&parser->stack, (void *) &state)) {
+ return *state;
+ }
+ return PHP_HTTP_HEADER_PARSER_STATE_START;
+}
+
+php_http_header_parser_state_t php_http_header_parser_state_pop(php_http_header_parser_t *parser)
+{
+ php_http_header_parser_state_t state, *state_ptr;
+ if (SUCCESS == zend_stack_top(&parser->stack, (void *) &state_ptr)) {
+ state = *state_ptr;
+ zend_stack_del_top(&parser->stack);
+ return state;
+ }
+ return PHP_HTTP_HEADER_PARSER_STATE_START;
+}
+
+void php_http_header_parser_dtor(php_http_header_parser_t *parser)
+{
+ zend_stack_destroy(&parser->stack);
+ php_http_info_dtor(&parser->info);
+ STR_FREE(parser->_key.str);
+ STR_FREE(parser->_val.str);
+}
+
+void php_http_header_parser_free(php_http_header_parser_t **parser)
+{
+ if (*parser) {
+ php_http_header_parser_dtor(*parser);
+ efree(*parser);
+ *parser = NULL;
+ }
+}
+
+STATUS php_http_header_parser_parse(php_http_header_parser_t *parser, php_http_buffer_t *buffer, unsigned flags, HashTable *headers, php_http_info_callback_t callback_func, void *callback_arg)
+{
+ TSRMLS_FETCH_FROM_CTX(parser->ts);
+
+ while (buffer->used || !php_http_header_parser_states[php_http_header_parser_state_is(parser)].need_data) {
+#if 0
+ const char *state[] = {"START", "KEY", "VALUE", "HEADER_DONE", "DONE"};
+ fprintf(stderr, "#HP: %s (avail:%zu, num:%d)\n", php_http_header_parser_state_is(parser) < 0 ? "FAILURE" : state[php_http_header_parser_state_is(parser)], buffer->used, headers?zend_hash_num_elements(headers):0);
+ _dpf(0, buffer->data, buffer->used);
+#endif
+ switch (php_http_header_parser_state_pop(parser)) {
+ case PHP_HTTP_HEADER_PARSER_STATE_FAILURE:
+ return php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_FAILURE);
+
+ case PHP_HTTP_HEADER_PARSER_STATE_START: {
+ char *ptr = buffer->data;
+
+ while (ptr - buffer->data < buffer->used && PHP_HTTP_IS_CTYPE(space, *ptr)) {
+ ++ptr;
+ }
+
+ php_http_buffer_cut(buffer, 0, ptr - buffer->data);
+ php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_KEY);
+ break;
+ }
+
+ case PHP_HTTP_HEADER_PARSER_STATE_KEY: {
+ const char *colon, *eol_str = NULL;
+ int eol_len = 0;
+
+ if (buffer->data == (eol_str = php_http_locate_bin_eol(buffer->data, buffer->used, &eol_len))) {
+ /* end of headers */
+ php_http_buffer_cut(buffer, 0, eol_len);
+ php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_DONE);
+ } else if (php_http_info_parse(&parser->info, php_http_buffer_fix(buffer)->data TSRMLS_CC)) {
+ /* new message starting with request/response line */
+ if (callback_func) {
+ callback_func(callback_arg, &headers, &parser->info TSRMLS_CC);
+ }
+ php_http_info_dtor(&parser->info);
+ php_http_buffer_cut(buffer, 0, eol_str + eol_len - buffer->data);
+ php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_HEADER_DONE);
+ } else if ((colon = memchr(buffer->data, ':', buffer->used)) && (!eol_str || eol_str > colon)) {
+ /* header: string */
+ parser->_key.str = estrndup(buffer->data, parser->_key.len = colon - buffer->data);
+ while (PHP_HTTP_IS_CTYPE(space, *++colon) && *colon != '\n' && *colon != '\r');
+ php_http_buffer_cut(buffer, 0, colon - buffer->data);
+ php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_VALUE);
+ } else {
+ /* neither reqeust/response line nor header: string */
+ return php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_FAILURE);
+ }
+ break;
+ }
+
+ case PHP_HTTP_HEADER_PARSER_STATE_VALUE: {
+ const char *eol_str;
+ int eol_len;
+
+#define SET_ADD_VAL(slen, eol_len) \
+ do { \
+ const char *ptr = buffer->data; \
+ size_t len = slen; \
+ \
+ while (len > 0 && PHP_HTTP_IS_CTYPE(space, *ptr)) { \
+ ++ptr; \
+ --len; \
+ } \
+ while (len > 0 && PHP_HTTP_IS_CTYPE(space, ptr[len - 1])) { \
+ --len; \
+ } \
+ \
+ if (len > 0) { \
+ if (parser->_val.str) { \
+ parser->_val.str = erealloc(parser->_val.str, parser->_val.len + len + 2); \
+ parser->_val.str[parser->_val.len++] = ' '; \
+ memcpy(&parser->_val.str[parser->_val.len], ptr, len); \
+ parser->_val.len += len; \
+ parser->_val.str[parser->_val.len] = '\0'; \
+ } else { \
+ parser->_val.len = len; \
+ parser->_val.str = estrndup(ptr, len); \
+ } \
+ } \
+ php_http_buffer_cut(buffer, 0, slen + eol_len); \
+ } while (0)
+
+ if ((eol_str = php_http_locate_bin_eol(buffer->data, buffer->used, &eol_len))) {
+ SET_ADD_VAL(eol_str - buffer->data, eol_len);
+
+ if (buffer->used) {
+ if (*buffer->data != '\t' && *buffer->data != ' ') {
+ php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_HEADER_DONE);
+ break;
+ } else {
+ php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_VALUE);
+ break;
+ }
+ }
+ }
+
+ if (flags & PHP_HTTP_HEADER_PARSER_CLEANUP) {
+ if (buffer->used) {
+ SET_ADD_VAL(buffer->used, 0);
+ }
+ php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_HEADER_DONE);
+ } else {
+ return php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_VALUE_EX);
+ }
+ break;
+ }
+
+ case PHP_HTTP_HEADER_PARSER_STATE_VALUE_EX:
+ if (*buffer->data == ' ' || *buffer->data == '\t') {
+ php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_VALUE);
+ } else {
+ php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_HEADER_DONE);
+ }
+ break;
+
+ case PHP_HTTP_HEADER_PARSER_STATE_HEADER_DONE:
+ if (parser->_key.str && parser->_val.str) {
+ zval array, **exist;
+
+ if (!headers && callback_func) {
+ callback_func(callback_arg, &headers, NULL TSRMLS_CC);
+ }
+
+ INIT_PZVAL_ARRAY(&array, headers);
+ php_http_pretty_key(parser->_key.str, parser->_key.len, 1, 1);
+ if (SUCCESS == zend_symtable_find(headers, parser->_key.str, parser->_key.len + 1, (void *) &exist)) {
+ convert_to_array(*exist);
+ add_next_index_stringl(*exist, parser->_val.str, parser->_val.len, 0);
+ } else {
+ add_assoc_stringl_ex(&array, parser->_key.str, parser->_key.len + 1, parser->_val.str, parser->_val.len, 0);
+ }
+ parser->_val.str = NULL;
+ }
+
+ STR_SET(parser->_key.str, NULL);
+ STR_SET(parser->_val.str, NULL);
+
+ php_http_header_parser_state_push(parser, 1, PHP_HTTP_HEADER_PARSER_STATE_KEY);
+ break;
+
+ case PHP_HTTP_HEADER_PARSER_STATE_DONE:
+ return PHP_HTTP_HEADER_PARSER_STATE_DONE;
+ }
+ }
+
+ return php_http_header_parser_state_is(parser);
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: noet sw=4 ts=4 fdm=marker
+ * vim<600: noet sw=4 ts=4
+ */
+
projects / m6w6 / ext-http / blobdiff