-#include "php_http.h"
+/*
+ +--------------------------------------------------------------------+
+ | 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) 2004-2014, Michael Wallner <mike@php.net> |
+ +--------------------------------------------------------------------+
+*/
+
+#include "php_http_api.h"
+
+#ifndef DBG_PARSER
+# define DBG_PARSER 0
+#endif
typedef struct php_http_message_parser_state_spec {
php_http_message_parser_state_t state;
{PHP_HTTP_MESSAGE_PARSER_STATE_DONE, 0}
};
-PHP_HTTP_API php_http_message_parser_t *php_http_message_parser_init(php_http_message_parser_t *parser TSRMLS_DC)
+#if DBG_PARSER
+const char *php_http_message_parser_state_name(php_http_message_parser_state_t state) {
+ const char *states[] = {"START", "HEADER", "HEADER_DONE", "BODY", "BODY_DUMB", "BODY_LENGTH", "BODY_CHUNK", "BODY_DONE", "DONE"};
+
+ if (state < 0 || state > (sizeof(states)/sizeof(char*))-1) {
+ return "FAILURE";
+ }
+ return states[state];
+}
+#endif
+
+php_http_message_parser_t *php_http_message_parser_init(php_http_message_parser_t *parser TSRMLS_DC)
{
if (!parser) {
parser = emalloc(sizeof(*parser));
TSRMLS_SET_CTX(parser->ts);
php_http_header_parser_init(&parser->header TSRMLS_CC);
- zend_stack_init(&parser->stack);
return parser;
}
-PHP_HTTP_API php_http_message_parser_state_t php_http_message_parser_state_push(php_http_message_parser_t *parser, unsigned argc, ...)
+php_http_message_parser_state_t php_http_message_parser_state_push(php_http_message_parser_t *parser, unsigned argc, ...)
{
+ php_http_message_parser_state_t state;
va_list va_args;
unsigned i;
- va_start(va_args, argc);
- php_http_message_parser_state_t state;
+ /* short circuit */
+ ZEND_PTR_STACK_RESIZE_IF_NEEDED((&parser->stack), argc);
+
+ va_start(va_args, argc);
for (i = 0; i < argc; ++i) {
state = va_arg(va_args, php_http_message_parser_state_t);
- zend_stack_push(&parser->stack, &state, sizeof(state));
+ zend_ptr_stack_push(&parser->stack, (void *) state);
}
va_end(va_args);
return state;
}
-PHP_HTTP_API php_http_message_parser_state_t php_http_message_parser_state_is(php_http_message_parser_t *parser)
+php_http_message_parser_state_t php_http_message_parser_state_is(php_http_message_parser_t *parser)
{
- php_http_message_parser_state_t *state;
-
- if (SUCCESS == zend_stack_top(&parser->stack, (void *) &state)) {
- return *state;
+ if (parser->stack.top) {
+ return (php_http_message_parser_state_t) parser->stack.elements[parser->stack.top - 1];
}
return PHP_HTTP_MESSAGE_PARSER_STATE_START;
}
-PHP_HTTP_API php_http_message_parser_state_t php_http_message_parser_state_pop(php_http_message_parser_t *parser)
+php_http_message_parser_state_t php_http_message_parser_state_pop(php_http_message_parser_t *parser)
{
- php_http_message_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;
+ if (parser->stack.top) {
+ return (php_http_message_parser_state_t) zend_ptr_stack_pop(&parser->stack);
}
return PHP_HTTP_MESSAGE_PARSER_STATE_START;
}
-PHP_HTTP_API void php_http_message_parser_dtor(php_http_message_parser_t *parser)
+void php_http_message_parser_dtor(php_http_message_parser_t *parser)
{
php_http_header_parser_dtor(&parser->header);
- zend_stack_destroy(&parser->stack);
+ zend_ptr_stack_destroy(&parser->stack);
+ php_http_message_free(&parser->message);
if (parser->dechunk) {
- php_http_encoding_stream_free(&parser->dechunk TSRMLS_CC);
+ php_http_encoding_stream_free(&parser->dechunk);
}
if (parser->inflate) {
- php_http_encoding_stream_free(&parser->inflate TSRMLS_CC);
+ php_http_encoding_stream_free(&parser->inflate);
}
}
-PHP_HTTP_API void php_http_message_parser_free(php_http_message_parser_t **parser)
+void php_http_message_parser_free(php_http_message_parser_t **parser)
{
if (*parser) {
php_http_message_parser_dtor(*parser);
}
}
-
-PHP_HTTP_API php_http_message_parser_state_t php_http_message_parser_parse(php_http_message_parser_t *parser, php_http_buffer_t *buffer, unsigned flags, php_http_message_t **message)
+php_http_message_parser_state_t php_http_message_parser_parse_stream(php_http_message_parser_t *parser, php_http_buffer_t *buf, php_stream *s, unsigned flags, php_http_message_t **message)
{
+ php_http_message_parser_state_t state = PHP_HTTP_MESSAGE_PARSER_STATE_START;
TSRMLS_FETCH_FROM_CTX(parser->ts);
+
+ if (!buf->data) {
+ php_http_buffer_resize_ex(buf, 0x1000, 1, 0);
+ }
+ while (!php_stream_eof(s)) {
+ size_t justread = 0;
+#if DBG_PARSER
+ fprintf(stderr, "#SP: %s (f:%u)\n", php_http_message_parser_state_name(state), flags);
+#endif
+ switch (state) {
+ case PHP_HTTP_MESSAGE_PARSER_STATE_START:
+ case PHP_HTTP_MESSAGE_PARSER_STATE_HEADER:
+ case PHP_HTTP_MESSAGE_PARSER_STATE_HEADER_DONE:
+ /* read line */
+ php_stream_get_line(s, buf->data + buf->used, buf->free, &justread);
+ php_http_buffer_account(buf, justread);
+ break;
+
+ case PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DUMB:
+ /* read all */
+ justread = php_stream_read(s, buf->data + buf->used, buf->free);
+ php_http_buffer_account(buf, justread);
+ break;
+
+ case PHP_HTTP_MESSAGE_PARSER_STATE_BODY_LENGTH:
+ /* read body_length */
+ justread = php_stream_read(s, buf->data + buf->used, MIN(buf->free, parser->body_length));
+ php_http_buffer_account(buf, justread);
+ break;
+
+ case PHP_HTTP_MESSAGE_PARSER_STATE_BODY_CHUNKED:
+ /* duh, this is very naive */
+ if (parser->body_length) {
+ justread = php_stream_read(s, buf->data + buf->used, MIN(parser->body_length, buf->free));
+
+ php_http_buffer_account(buf, justread);
+
+ parser->body_length -= justread;
+ } else {
+ php_http_buffer_resize(buf, 24);
+ php_stream_get_line(s, buf->data, buf->free, &justread);
+ php_http_buffer_account(buf, justread);
+
+ parser->body_length = strtoul(buf->data + buf->used - justread, NULL, 16);
+ }
+ break;
+
+ case PHP_HTTP_MESSAGE_PARSER_STATE_BODY:
+ case PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE:
+ /* should not occur */
+ abort();
+ break;
+
+ case PHP_HTTP_MESSAGE_PARSER_STATE_DONE:
+ case PHP_HTTP_MESSAGE_PARSER_STATE_FAILURE:
+ return php_http_message_parser_state_is(parser);
+ }
+
+ if (justread) {
+ state = php_http_message_parser_parse(parser, buf, flags, message);
+ } else {
+ return state;
+ }
+ }
+
+ return PHP_HTTP_MESSAGE_PARSER_STATE_DONE;
+}
+
+
+php_http_message_parser_state_t php_http_message_parser_parse(php_http_message_parser_t *parser, php_http_buffer_t *buffer, unsigned flags, php_http_message_t **message)
+{
char *str = NULL;
size_t len = 0;
size_t cut = 0;
+ TSRMLS_FETCH_FROM_CTX(parser->ts);
while (buffer->used || !php_http_message_parser_states[php_http_message_parser_state_is(parser)].need_data) {
-#if 0
- const char *state[] = {"START", "HEADER", "HEADER_DONE", "BODY", "BODY_DUMB", "BODY_LENGTH", "BODY_CHUNK", "BODY_DONE", "DONE"};
- fprintf(stderr, "#MP: %s (%d)\n", php_http_message_parser_state_is(parser) < 0 ? "FAILURE" : state[php_http_message_parser_state_is(parser)], (*message)->type);
+#if DBG_PARSER
+ fprintf(stderr, "#MP: %s (f: %u, t:%d, l:%zu)\n",
+ php_http_message_parser_state_name(php_http_message_parser_state_is(parser)),
+ flags,
+ message && *message ? (*message)->type : -1,
+ buffer->used
+ );
_dpf(0, buffer->data, buffer->used);
#endif
{
unsigned header_parser_flags = (flags & PHP_HTTP_MESSAGE_PARSER_CLEANUP) ? PHP_HTTP_HEADER_PARSER_CLEANUP : 0;
- switch (php_http_header_parser_parse(&parser->header, buffer, header_parser_flags, &(*message)->hdrs, (php_http_info_callback_t) php_http_message_info_callback, message)) {
+ switch (php_http_header_parser_parse(&parser->header, buffer, header_parser_flags, *message ? &(*message)->hdrs : NULL, (php_http_info_callback_t) php_http_message_info_callback, message)) {
case PHP_HTTP_HEADER_PARSER_STATE_FAILURE:
return PHP_HTTP_MESSAGE_PARSER_STATE_FAILURE;
if (h_cl) {
char *stop;
- parser->body_length = strtoul(Z_STRVAL_PP(h_cl), &stop, 10);
+ if (Z_TYPE_PP(h_cl) == IS_STRING) {
+ parser->body_length = strtoul(Z_STRVAL_PP(h_cl), &stop, 10);
- if (stop != Z_STRVAL_PP(h_cl)) {
- php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_BODY_LENGTH);
+ if (stop != Z_STRVAL_PP(h_cl)) {
+ php_http_message_parser_state_push(parser, 1, !parser->body_length?PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE:PHP_HTTP_MESSAGE_PARSER_STATE_BODY_LENGTH);
+ break;
+ }
+ } else if (Z_TYPE_PP(h_cl) == IS_LONG) {
+ parser->body_length = Z_LVAL_PP(h_cl);
+ php_http_message_parser_state_push(parser, 1, !parser->body_length?PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE:PHP_HTTP_MESSAGE_PARSER_STATE_BODY_LENGTH);
break;
}
}
if (end >= start && (!total || end < total)) {
parser->body_length = end + 1 - start;
- php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_BODY_LENGTH);
+ php_http_message_parser_state_push(parser, 1, !parser->body_length?PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE:PHP_HTTP_MESSAGE_PARSER_STATE_BODY_LENGTH);
break;
}
}
char *dec_str = NULL;
size_t dec_len;
- if (SUCCESS != php_http_encoding_stream_update(parser->inflate, str, len, &dec_str, &dec_len TSRMLS_CC)) {
+ if (SUCCESS != php_http_encoding_stream_update(parser->inflate, str, len, &dec_str, &dec_len)) {
return php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_FAILURE);
}
if (str != buffer->data) {
- STR_FREE(str);
+ PTR_FREE(str);
}
str = dec_str;
len = dec_len;
}
- php_stream_write(php_http_message_body_stream(&(*message)->body), str, len);
+ php_stream_write(php_http_message_body_stream((*message)->body), str, len);
/* keep track */
MAKE_STD_ZVAL(zcl);
- ZVAL_LONG(zcl, php_http_message_body_size(&(*message)->body));
+ ZVAL_LONG(zcl, php_http_message_body_size((*message)->body));
zend_hash_update(&(*message)->hdrs, "Content-Length", sizeof("Content-Length"), &zcl, sizeof(zval *), NULL);
}
}
if (str != buffer->data) {
- STR_FREE(str);
+ PTR_FREE(str);
}
str = NULL;
len = buffer->used;
cut = len;
- php_http_message_parser_state_push(parser, 2, !buffer->used?PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE:PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DUMB, PHP_HTTP_MESSAGE_PARSER_STATE_BODY);
+ php_http_message_parser_state_push(parser, 2, PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE, PHP_HTTP_MESSAGE_PARSER_STATE_BODY);
break;
}
char *dec_str = NULL;
size_t dec_len;
- if (SUCCESS != php_http_encoding_stream_update(parser->dechunk, buffer->data, buffer->used, &dec_str, &dec_len TSRMLS_CC)) {
- return FAILURE;
+ if (SUCCESS != php_http_encoding_stream_update(parser->dechunk, buffer->data, buffer->used, &dec_str, &dec_len)) {
+ return PHP_HTTP_MESSAGE_PARSER_STATE_FAILURE;
}
str = dec_str;
len = dec_len;
if (php_http_encoding_stream_done(parser->dechunk)) {
- cut = buffer->used - PHP_HTTP_BUFFER_LEN(parser->dechunk->ctx);
+ cut = buffer->used - PHP_HTTP_BUFFER(parser->dechunk->ctx)->used;
php_http_message_parser_state_push(parser, 2, PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE, PHP_HTTP_MESSAGE_PARSER_STATE_BODY);
} else {
cut = buffer->used;
char *dec_str = NULL;
size_t dec_len;
- if (SUCCESS != php_http_encoding_stream_finish(parser->dechunk, &dec_str, &dec_len TSRMLS_CC)) {
+ if (SUCCESS != php_http_encoding_stream_finish(parser->dechunk, &dec_str, &dec_len)) {
return php_http_message_parser_state_push(parser, 1, PHP_HTTP_MESSAGE_PARSER_STATE_FAILURE);
}
php_http_encoding_stream_dtor(parser->dechunk);
}
php_http_buffer_cut(buffer, 0, ptr - buffer->data);
+
+ if (!(flags & PHP_HTTP_MESSAGE_PARSER_GREEDY)) {
+ return PHP_HTTP_MESSAGE_PARSER_STATE_DONE;
+ }
break;
}
}
return php_http_message_parser_state_is(parser);
}
+
+zend_class_entry *php_http_message_parser_class_entry;
+static zend_object_handlers php_http_message_parser_object_handlers;
+
+zend_object_value php_http_message_parser_object_new(zend_class_entry *ce TSRMLS_DC)
+{
+ return php_http_message_parser_object_new_ex(ce, NULL, NULL TSRMLS_CC);
+}
+
+zend_object_value php_http_message_parser_object_new_ex(zend_class_entry *ce, php_http_message_parser_t *parser, php_http_message_parser_object_t **ptr TSRMLS_DC)
+{
+ php_http_message_parser_object_t *o;
+
+ o = ecalloc(1, sizeof(php_http_message_parser_object_t));
+ zend_object_std_init((zend_object *) o, ce TSRMLS_CC);
+ object_properties_init((zend_object *) o, ce);
+
+ if (ptr) {
+ *ptr = o;
+ }
+
+ if (parser) {
+ o->parser = parser;
+ } else {
+ o->parser = php_http_message_parser_init(NULL TSRMLS_CC);
+ }
+ o->buffer = php_http_buffer_new();
+
+ o->zv.handle = zend_objects_store_put((zend_object *) o, NULL, php_http_message_parser_object_free, NULL TSRMLS_CC);
+ o->zv.handlers = &php_http_message_parser_object_handlers;
+
+ return o->zv;
+}
+
+void php_http_message_parser_object_free(void *object TSRMLS_DC)
+{
+ php_http_message_parser_object_t *o = (php_http_message_parser_object_t *) object;
+
+ if (o->parser) {
+ php_http_message_parser_free(&o->parser);
+ }
+ if (o->buffer) {
+ php_http_buffer_free(&o->buffer);
+ }
+ zend_object_std_dtor((zend_object *) o TSRMLS_CC);
+ efree(o);
+}
+
+ZEND_BEGIN_ARG_INFO_EX(ai_HttpMessageParser_getState, 0, 0, 0)
+ZEND_END_ARG_INFO();
+static PHP_METHOD(HttpMessageParser, getState)
+{
+ php_http_message_parser_object_t *parser_obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+
+ zend_parse_parameters_none();
+ /* always return the real state */
+ RETVAL_LONG(php_http_message_parser_state_is(parser_obj->parser));
+}
+
+ZEND_BEGIN_ARG_INFO_EX(ai_HttpMessageParser_parse, 0, 0, 3)
+ ZEND_ARG_INFO(0, data)
+ ZEND_ARG_INFO(0, flags)
+ ZEND_ARG_INFO(1, message)
+ZEND_END_ARG_INFO();
+static PHP_METHOD(HttpMessageParser, parse)
+{
+ php_http_message_parser_object_t *parser_obj;
+ zval *zmsg;
+ char *data_str;
+ int data_len;
+ long flags;
+
+ php_http_expect(SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "slz", &data_str, &data_len, &flags, &zmsg), invalid_arg, return);
+
+ parser_obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+ php_http_buffer_append(parser_obj->buffer, data_str, data_len);
+ RETVAL_LONG(php_http_message_parser_parse(parser_obj->parser, parser_obj->buffer, flags, &parser_obj->parser->message));
+
+ zval_dtor(zmsg);
+ if (parser_obj->parser->message) {
+ ZVAL_OBJVAL(zmsg, php_http_message_object_new_ex(php_http_message_class_entry, php_http_message_copy(parser_obj->parser->message, NULL), NULL TSRMLS_CC), 0);
+ }
+}
+
+ZEND_BEGIN_ARG_INFO_EX(ai_HttpMessageParser_stream, 0, 0, 3)
+ ZEND_ARG_INFO(0, stream)
+ ZEND_ARG_INFO(0, flags)
+ ZEND_ARG_INFO(1, message)
+ZEND_END_ARG_INFO();
+static PHP_METHOD(HttpMessageParser, stream)
+{
+ php_http_message_parser_object_t *parser_obj;
+ zend_error_handling zeh;
+ zval *zmsg, *zstream;
+ php_stream *s;
+ long flags;
+
+ php_http_expect(SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rlz", &zstream, &flags, &zmsg), invalid_arg, return);
+
+ zend_replace_error_handling(EH_THROW, php_http_exception_unexpected_val_class_entry, &zeh TSRMLS_CC);
+ php_stream_from_zval(s, &zstream);
+ zend_restore_error_handling(&zeh TSRMLS_CC);
+
+ parser_obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+ RETVAL_LONG(php_http_message_parser_parse_stream(parser_obj->parser, parser_obj->buffer, s, flags, &parser_obj->parser->message));
+
+ zval_dtor(zmsg);
+ if (parser_obj->parser->message) {
+ ZVAL_OBJVAL(zmsg, php_http_message_object_new_ex(php_http_message_class_entry, php_http_message_copy(parser_obj->parser->message, NULL), NULL TSRMLS_CC), 0);
+ }
+}
+
+static zend_function_entry php_http_message_parser_methods[] = {
+ PHP_ME(HttpMessageParser, getState, ai_HttpMessageParser_getState, ZEND_ACC_PUBLIC)
+ PHP_ME(HttpMessageParser, parse, ai_HttpMessageParser_parse, ZEND_ACC_PUBLIC)
+ PHP_ME(HttpMessageParser, stream, ai_HttpMessageParser_stream, ZEND_ACC_PUBLIC)
+ {NULL, NULL, NULL}
+};
+
+PHP_MINIT_FUNCTION(http_message_parser)
+{
+ zend_class_entry ce;
+
+ INIT_NS_CLASS_ENTRY(ce, "http\\Message", "Parser", php_http_message_parser_methods);
+ php_http_message_parser_class_entry = zend_register_internal_class(&ce TSRMLS_CC);
+ memcpy(&php_http_message_parser_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
+ php_http_message_parser_class_entry->create_object = php_http_message_parser_object_new;
+ php_http_message_parser_object_handlers.clone_obj = NULL;
+
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("CLEANUP"), PHP_HTTP_MESSAGE_PARSER_CLEANUP TSRMLS_CC);
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("DUMB_BODIES"), PHP_HTTP_MESSAGE_PARSER_DUMB_BODIES TSRMLS_CC);
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("EMPTY_REDIRECTS"), PHP_HTTP_MESSAGE_PARSER_EMPTY_REDIRECTS TSRMLS_CC);
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("GREEDY"), PHP_HTTP_MESSAGE_PARSER_GREEDY TSRMLS_CC);
+
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("STATE_FAILURE"), PHP_HTTP_MESSAGE_PARSER_STATE_FAILURE TSRMLS_CC);
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("STATE_START"), PHP_HTTP_MESSAGE_PARSER_STATE_START TSRMLS_CC);
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("STATE_HEADER"), PHP_HTTP_MESSAGE_PARSER_STATE_HEADER TSRMLS_CC);
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("STATE_HEADER_DONE"), PHP_HTTP_MESSAGE_PARSER_STATE_HEADER_DONE TSRMLS_CC);
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("STATE_BODY"), PHP_HTTP_MESSAGE_PARSER_STATE_BODY TSRMLS_CC);
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("STATE_BODY_DUMB"), PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DUMB TSRMLS_CC);
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("STATE_BODY_LENGTH"), PHP_HTTP_MESSAGE_PARSER_STATE_BODY_LENGTH TSRMLS_CC);
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("STATE_BODY_CHUNKED"), PHP_HTTP_MESSAGE_PARSER_STATE_BODY_CHUNKED TSRMLS_CC);
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("STATE_BODY_DONE"), PHP_HTTP_MESSAGE_PARSER_STATE_BODY_DONE TSRMLS_CC);
+ zend_declare_class_constant_long(php_http_message_parser_class_entry, ZEND_STRL("STATE_DONE"), PHP_HTTP_MESSAGE_PARSER_STATE_DONE TSRMLS_CC);
+
+ return SUCCESS;
+}
+
+/*
+ * 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