diff options
Diffstat (limited to 'scene/main/http_request.cpp')
-rw-r--r-- | scene/main/http_request.cpp | 170 |
1 files changed, 95 insertions, 75 deletions
diff --git a/scene/main/http_request.cpp b/scene/main/http_request.cpp index 9a23bc65bf..62f362553f 100644 --- a/scene/main/http_request.cpp +++ b/scene/main/http_request.cpp @@ -32,15 +32,12 @@ #include "core/io/compression.h" #include "scene/main/timer.h" -void HTTPRequest::_redirect_request(const String &p_new_url) { -} - Error HTTPRequest::_request() { - return client->connect_to_host(url, port, use_ssl, validate_ssl); + return client->connect_to_host(url, port, use_tls, validate_tls); } Error HTTPRequest::_parse_url(const String &p_url) { - use_ssl = false; + use_tls = false; request_string = ""; port = 80; request_sent = false; @@ -48,18 +45,19 @@ Error HTTPRequest::_parse_url(const String &p_url) { body_len = -1; body.clear(); downloaded.set(0); + final_body_size.set(0); redirections = 0; String scheme; Error err = p_url.parse_url(scheme, url, port, request_string); ERR_FAIL_COND_V_MSG(err != OK, err, "Error parsing URL: " + p_url + "."); if (scheme == "https://") { - use_ssl = true; + use_tls = true; } else if (scheme != "http://") { ERR_FAIL_V_MSG(ERR_INVALID_PARAMETER, "Invalid URL scheme: " + scheme + "."); } if (port == 0) { - port = use_ssl ? 443 : 80; + port = use_tls ? 443 : 80; } if (request_string.is_empty()) { request_string = "/"; @@ -98,7 +96,7 @@ String HTTPRequest::get_header_value(const PackedStringArray &p_headers, const S return value; } -Error HTTPRequest::request(const String &p_url, const Vector<String> &p_custom_headers, bool p_ssl_validate_domain, HTTPClient::Method p_method, const String &p_request_data) { +Error HTTPRequest::request(const String &p_url, const Vector<String> &p_custom_headers, bool p_tls_validate_domain, HTTPClient::Method p_method, const String &p_request_data) { // Copy the string into a raw buffer. Vector<uint8_t> raw_data; @@ -110,10 +108,10 @@ Error HTTPRequest::request(const String &p_url, const Vector<String> &p_custom_h memcpy(w, charstr.ptr(), len); } - return request_raw(p_url, p_custom_headers, p_ssl_validate_domain, p_method, raw_data); + return request_raw(p_url, p_custom_headers, p_tls_validate_domain, p_method, raw_data); } -Error HTTPRequest::request_raw(const String &p_url, const Vector<String> &p_custom_headers, bool p_ssl_validate_domain, HTTPClient::Method p_method, const Vector<uint8_t> &p_request_data_raw) { +Error HTTPRequest::request_raw(const String &p_url, const Vector<String> &p_custom_headers, bool p_tls_validate_domain, HTTPClient::Method p_method, const Vector<uint8_t> &p_request_data_raw) { ERR_FAIL_COND_V(!is_inside_tree(), ERR_UNCONFIGURED); ERR_FAIL_COND_V_MSG(requesting, ERR_BUSY, "HTTPRequest is processing a request. Wait for completion or cancel it before attempting a new one."); @@ -129,7 +127,7 @@ Error HTTPRequest::request_raw(const String &p_url, const Vector<String> &p_cust return err; } - validate_ssl = p_ssl_validate_domain; + validate_tls = p_tls_validate_domain; headers = p_custom_headers; @@ -153,7 +151,7 @@ Error HTTPRequest::request_raw(const String &p_url, const Vector<String> &p_cust client->set_blocking_mode(false); err = _request(); if (err != OK) { - call_deferred(SNAME("_request_done"), RESULT_CANT_CONNECT, 0, PackedStringArray(), PackedByteArray()); + _defer_done(RESULT_CANT_CONNECT, 0, PackedStringArray(), PackedByteArray()); return ERR_CANT_CONNECT; } @@ -169,7 +167,7 @@ void HTTPRequest::_thread_func(void *p_userdata) { Error err = hr->_request(); if (err != OK) { - hr->call_deferred(SNAME("_request_done"), RESULT_CANT_CONNECT, 0, PackedStringArray(), PackedByteArray()); + hr->_defer_done(RESULT_CANT_CONNECT, 0, PackedStringArray(), PackedByteArray()); } else { while (!hr->thread_request_quit.is_set()) { bool exit = hr->_update_connection(); @@ -198,6 +196,7 @@ void HTTPRequest::cancel_request() { } file.unref(); + decompressor.unref(); client->close(); body.clear(); got_response = false; @@ -208,7 +207,7 @@ void HTTPRequest::cancel_request() { bool HTTPRequest::_handle_response(bool *ret_value) { if (!client->has_response()) { - call_deferred(SNAME("_request_done"), RESULT_NO_RESPONSE, 0, PackedStringArray(), PackedByteArray()); + _defer_done(RESULT_NO_RESPONSE, 0, PackedStringArray(), PackedByteArray()); *ret_value = true; return true; } @@ -219,6 +218,9 @@ bool HTTPRequest::_handle_response(bool *ret_value) { client->get_response_headers(&rheaders); response_headers.clear(); downloaded.set(0); + final_body_size.set(0); + decompressor.unref(); + for (const String &E : rheaders) { response_headers.push_back(E); } @@ -227,7 +229,7 @@ bool HTTPRequest::_handle_response(bool *ret_value) { // Handle redirect. if (max_redirects >= 0 && redirections >= max_redirects) { - call_deferred(SNAME("_request_done"), RESULT_REDIRECT_LIMIT_REACHED, response_code, response_headers, PackedByteArray()); + _defer_done(RESULT_REDIRECT_LIMIT_REACHED, response_code, response_headers, PackedByteArray()); *ret_value = true; return true; } @@ -259,6 +261,7 @@ bool HTTPRequest::_handle_response(bool *ret_value) { body_len = -1; body.clear(); downloaded.set(0); + final_body_size.set(0); redirections = new_redirs; *ret_value = false; return true; @@ -266,13 +269,26 @@ bool HTTPRequest::_handle_response(bool *ret_value) { } } + // Check if we need to start streaming decompression. + String content_encoding; + if (accept_gzip) { + content_encoding = get_header_value(response_headers, "Content-Encoding").to_lower(); + } + if (content_encoding == "gzip") { + decompressor.instantiate(); + decompressor->start_decompression(false, get_download_chunk_size()); + } else if (content_encoding == "deflate") { + decompressor.instantiate(); + decompressor->start_decompression(true, get_download_chunk_size()); + } + return false; } bool HTTPRequest::_update_connection() { switch (client->get_status()) { case HTTPClient::STATUS_DISCONNECTED: { - call_deferred(SNAME("_request_done"), RESULT_CANT_CONNECT, 0, PackedStringArray(), PackedByteArray()); + _defer_done(RESULT_CANT_CONNECT, 0, PackedStringArray(), PackedByteArray()); return true; // End it, since it's disconnected. } break; case HTTPClient::STATUS_RESOLVING: { @@ -281,7 +297,7 @@ bool HTTPRequest::_update_connection() { return false; } break; case HTTPClient::STATUS_CANT_RESOLVE: { - call_deferred(SNAME("_request_done"), RESULT_CANT_RESOLVE, 0, PackedStringArray(), PackedByteArray()); + _defer_done(RESULT_CANT_RESOLVE, 0, PackedStringArray(), PackedByteArray()); return true; } break; @@ -291,7 +307,7 @@ bool HTTPRequest::_update_connection() { return false; } break; // Connecting to IP. case HTTPClient::STATUS_CANT_CONNECT: { - call_deferred(SNAME("_request_done"), RESULT_CANT_CONNECT, 0, PackedStringArray(), PackedByteArray()); + _defer_done(RESULT_CANT_CONNECT, 0, PackedStringArray(), PackedByteArray()); return true; } break; @@ -306,16 +322,16 @@ bool HTTPRequest::_update_connection() { return ret_value; } - call_deferred(SNAME("_request_done"), RESULT_SUCCESS, response_code, response_headers, PackedByteArray()); + _defer_done(RESULT_SUCCESS, response_code, response_headers, PackedByteArray()); return true; } if (body_len < 0) { // Chunked transfer is done. - call_deferred(SNAME("_request_done"), RESULT_SUCCESS, response_code, response_headers, body); + _defer_done(RESULT_SUCCESS, response_code, response_headers, body); return true; } - call_deferred(SNAME("_request_done"), RESULT_CHUNKED_BODY_SIZE_MISMATCH, response_code, response_headers, PackedByteArray()); + _defer_done(RESULT_CHUNKED_BODY_SIZE_MISMATCH, response_code, response_headers, PackedByteArray()); return true; // Request might have been done. } else { @@ -324,7 +340,7 @@ bool HTTPRequest::_update_connection() { int size = request_data.size(); Error err = client->request(method, request_string, headers, size > 0 ? request_data.ptr() : nullptr, size); if (err != OK) { - call_deferred(SNAME("_request_done"), RESULT_CONNECTION_ERROR, 0, PackedStringArray(), PackedByteArray()); + _defer_done(RESULT_CONNECTION_ERROR, 0, PackedStringArray(), PackedByteArray()); return true; } @@ -347,7 +363,7 @@ bool HTTPRequest::_update_connection() { } if (!client->is_response_chunked() && client->get_response_body_length() == 0) { - call_deferred(SNAME("_request_done"), RESULT_SUCCESS, response_code, response_headers, PackedByteArray()); + _defer_done(RESULT_SUCCESS, response_code, response_headers, PackedByteArray()); return true; } @@ -356,14 +372,14 @@ bool HTTPRequest::_update_connection() { body_len = client->get_response_body_length(); if (body_size_limit >= 0 && body_len > body_size_limit) { - call_deferred(SNAME("_request_done"), RESULT_BODY_SIZE_LIMIT_EXCEEDED, response_code, response_headers, PackedByteArray()); + _defer_done(RESULT_BODY_SIZE_LIMIT_EXCEEDED, response_code, response_headers, PackedByteArray()); return true; } if (!download_to_file.is_empty()) { file = FileAccess::open(download_to_file, FileAccess::WRITE); if (file.is_null()) { - call_deferred(SNAME("_request_done"), RESULT_DOWNLOAD_FILE_CANT_OPEN, response_code, response_headers, PackedByteArray()); + _defer_done(RESULT_DOWNLOAD_FILE_CANT_OPEN, response_code, response_headers, PackedByteArray()); return true; } } @@ -374,15 +390,53 @@ bool HTTPRequest::_update_connection() { return false; } - PackedByteArray chunk = client->read_response_body_chunk(); + PackedByteArray chunk; + if (decompressor.is_null()) { + // Chunk can be read directly. + chunk = client->read_response_body_chunk(); + downloaded.add(chunk.size()); + } else { + // Chunk is the result of decompression. + PackedByteArray compressed = client->read_response_body_chunk(); + downloaded.add(compressed.size()); + + int pos = 0; + int left = compressed.size(); + while (left) { + int w = 0; + Error err = decompressor->put_partial_data(compressed.ptr() + pos, left, w); + if (err == OK) { + PackedByteArray dc; + dc.resize(decompressor->get_available_bytes()); + err = decompressor->get_data(dc.ptrw(), dc.size()); + chunk.append_array(dc); + } + if (err != OK) { + _defer_done(RESULT_BODY_DECOMPRESS_FAILED, response_code, response_headers, PackedByteArray()); + return true; + } + // We need this check here because a "zip bomb" could result in a chunk of few kilos decompressing into gigabytes of data. + if (body_size_limit >= 0 && final_body_size.get() + chunk.size() > body_size_limit) { + _defer_done(RESULT_BODY_SIZE_LIMIT_EXCEEDED, response_code, response_headers, PackedByteArray()); + return true; + } + pos += w; + left -= w; + } + } + final_body_size.add(chunk.size()); + + if (body_size_limit >= 0 && final_body_size.get() > body_size_limit) { + _defer_done(RESULT_BODY_SIZE_LIMIT_EXCEEDED, response_code, response_headers, PackedByteArray()); + return true; + } if (chunk.size()) { - downloaded.add(chunk.size()); if (file.is_valid()) { const uint8_t *r = chunk.ptr(); file->store_buffer(r, chunk.size()); if (file->get_error() != OK) { - call_deferred(SNAME("_request_done"), RESULT_DOWNLOAD_FILE_WRITE_ERROR, response_code, response_headers, PackedByteArray()); + _defer_done(RESULT_DOWNLOAD_FILE_WRITE_ERROR, response_code, response_headers, PackedByteArray()); return true; } } else { @@ -390,19 +444,14 @@ bool HTTPRequest::_update_connection() { } } - if (body_size_limit >= 0 && downloaded.get() > body_size_limit) { - call_deferred(SNAME("_request_done"), RESULT_BODY_SIZE_LIMIT_EXCEEDED, response_code, response_headers, PackedByteArray()); - return true; - } - if (body_len >= 0) { if (downloaded.get() == body_len) { - call_deferred(SNAME("_request_done"), RESULT_SUCCESS, response_code, response_headers, body); + _defer_done(RESULT_SUCCESS, response_code, response_headers, body); return true; } } else if (client->get_status() == HTTPClient::STATUS_DISCONNECTED) { // We read till EOF, with no errors. Request is done. - call_deferred(SNAME("_request_done"), RESULT_SUCCESS, response_code, response_headers, body); + _defer_done(RESULT_SUCCESS, response_code, response_headers, body); return true; } @@ -410,11 +459,11 @@ bool HTTPRequest::_update_connection() { } break; // Request resulted in body: break which must be read. case HTTPClient::STATUS_CONNECTION_ERROR: { - call_deferred(SNAME("_request_done"), RESULT_CONNECTION_ERROR, 0, PackedStringArray(), PackedByteArray()); + _defer_done(RESULT_CONNECTION_ERROR, 0, PackedStringArray(), PackedByteArray()); return true; } break; - case HTTPClient::STATUS_SSL_HANDSHAKE_ERROR: { - call_deferred(SNAME("_request_done"), RESULT_SSL_HANDSHAKE_ERROR, 0, PackedStringArray(), PackedByteArray()); + case HTTPClient::STATUS_TLS_HANDSHAKE_ERROR: { + _defer_done(RESULT_TLS_HANDSHAKE_ERROR, 0, PackedStringArray(), PackedByteArray()); return true; } break; } @@ -422,41 +471,13 @@ bool HTTPRequest::_update_connection() { ERR_FAIL_V(false); } +void HTTPRequest::_defer_done(int p_status, int p_code, const PackedStringArray &p_headers, const PackedByteArray &p_data) { + call_deferred(SNAME("_request_done"), p_status, p_code, p_headers, p_data); +} + void HTTPRequest::_request_done(int p_status, int p_code, const PackedStringArray &p_headers, const PackedByteArray &p_data) { cancel_request(); - // Determine if the request body is compressed. - bool is_compressed; - String content_encoding = get_header_value(p_headers, "Content-Encoding").to_lower(); - Compression::Mode mode; - if (content_encoding == "gzip") { - mode = Compression::Mode::MODE_GZIP; - is_compressed = true; - } else if (content_encoding == "deflate") { - mode = Compression::Mode::MODE_DEFLATE; - is_compressed = true; - } else { - is_compressed = false; - } - - if (accept_gzip && is_compressed && p_data.size() > 0) { - // Decompress request body - PackedByteArray decompressed; - int result = Compression::decompress_dynamic(&decompressed, body_size_limit, p_data.ptr(), p_data.size(), mode); - if (result == OK) { - emit_signal(SNAME("request_completed"), p_status, p_code, p_headers, decompressed); - return; - } else if (result == -5) { - WARN_PRINT("Decompressed size of HTTP response body exceeded body_size_limit"); - p_status = RESULT_BODY_SIZE_LIMIT_EXCEEDED; - // Just return the raw data if we failed to decompress it. - } else { - WARN_PRINT("Failed to decompress HTTP response body"); - p_status = RESULT_BODY_DECOMPRESS_FAILED; - // Just return the raw data if we failed to decompress it. - } - } - emit_signal(SNAME("request_completed"), p_status, p_code, p_headers, p_data); } @@ -566,12 +587,12 @@ double HTTPRequest::get_timeout() { void HTTPRequest::_timeout() { cancel_request(); - call_deferred(SNAME("_request_done"), RESULT_TIMEOUT, 0, PackedStringArray(), PackedByteArray()); + _defer_done(RESULT_TIMEOUT, 0, PackedStringArray(), PackedByteArray()); } void HTTPRequest::_bind_methods() { - ClassDB::bind_method(D_METHOD("request", "url", "custom_headers", "ssl_validate_domain", "method", "request_data"), &HTTPRequest::request, DEFVAL(PackedStringArray()), DEFVAL(true), DEFVAL(HTTPClient::METHOD_GET), DEFVAL(String())); - ClassDB::bind_method(D_METHOD("request_raw", "url", "custom_headers", "ssl_validate_domain", "method", "request_data_raw"), &HTTPRequest::request_raw, DEFVAL(PackedStringArray()), DEFVAL(true), DEFVAL(HTTPClient::METHOD_GET), DEFVAL(PackedByteArray())); + ClassDB::bind_method(D_METHOD("request", "url", "custom_headers", "tls_validate_domain", "method", "request_data"), &HTTPRequest::request, DEFVAL(PackedStringArray()), DEFVAL(true), DEFVAL(HTTPClient::METHOD_GET), DEFVAL(String())); + ClassDB::bind_method(D_METHOD("request_raw", "url", "custom_headers", "tls_validate_domain", "method", "request_data_raw"), &HTTPRequest::request_raw, DEFVAL(PackedStringArray()), DEFVAL(true), DEFVAL(HTTPClient::METHOD_GET), DEFVAL(PackedByteArray())); ClassDB::bind_method(D_METHOD("cancel_request"), &HTTPRequest::cancel_request); ClassDB::bind_method(D_METHOD("get_http_client_status"), &HTTPRequest::get_http_client_status); @@ -594,7 +615,6 @@ void HTTPRequest::_bind_methods() { ClassDB::bind_method(D_METHOD("get_downloaded_bytes"), &HTTPRequest::get_downloaded_bytes); ClassDB::bind_method(D_METHOD("get_body_size"), &HTTPRequest::get_body_size); - ClassDB::bind_method(D_METHOD("_redirect_request"), &HTTPRequest::_redirect_request); ClassDB::bind_method(D_METHOD("_request_done"), &HTTPRequest::_request_done); ClassDB::bind_method(D_METHOD("set_timeout", "timeout"), &HTTPRequest::set_timeout); @@ -621,7 +641,7 @@ void HTTPRequest::_bind_methods() { BIND_ENUM_CONSTANT(RESULT_CANT_CONNECT); BIND_ENUM_CONSTANT(RESULT_CANT_RESOLVE); BIND_ENUM_CONSTANT(RESULT_CONNECTION_ERROR); - BIND_ENUM_CONSTANT(RESULT_SSL_HANDSHAKE_ERROR); + BIND_ENUM_CONSTANT(RESULT_TLS_HANDSHAKE_ERROR); BIND_ENUM_CONSTANT(RESULT_NO_RESPONSE); BIND_ENUM_CONSTANT(RESULT_BODY_SIZE_LIMIT_EXCEEDED); BIND_ENUM_CONSTANT(RESULT_BODY_DECOMPRESS_FAILED); |