| (* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| *) |
| unit Thrift.WinHTTP; |
| |
| {$I Thrift.Defines.inc} |
| {$SCOPEDENUMS ON} |
| |
| // packing according to winhttp.h |
| {$IFDEF Win64} {$ALIGN 8} {$ELSE} {$ALIGN 4} {$ENDIF} |
| |
| interface |
| |
| uses |
| Windows, |
| Classes, |
| SysUtils, |
| Math, |
| Generics.Collections; |
| |
| |
| type |
| HINTERNET = type Pointer; |
| INTERNET_PORT = type WORD; |
| INTERNET_SCHEME = type Integer; |
| LPLPCWSTR = ^LPCWSTR; |
| |
| LPURL_COMPONENTS = ^URL_COMPONENTS; |
| URL_COMPONENTS = record |
| dwStructSize : DWORD; // set to SizeOf(URL_COMPONENTS) |
| lpszScheme : LPWSTR; // scheme name |
| dwSchemeLength : DWORD; |
| nScheme : INTERNET_SCHEME; // enumerated scheme type |
| lpszHostName : LPWSTR; // host name |
| dwHostNameLength : DWORD; |
| nPort : INTERNET_PORT; // port number |
| lpszUserName : LPWSTR; // user name |
| dwUserNameLength : DWORD; |
| lpszPassword : LPWSTR; // password |
| dwPasswordLength : DWORD; |
| lpszUrlPath : LPWSTR; // URL-path |
| dwUrlPathLength : DWORD; |
| lpszExtraInfo : LPWSTR; // extra information |
| dwExtraInfoLength : DWORD; |
| end; |
| |
| URL_COMPONENTSW = URL_COMPONENTS; |
| LPURL_COMPONENTSW = LPURL_COMPONENTS; |
| |
| |
| // When retrieving proxy data, an application must free the lpszProxy and |
| // lpszProxyBypass strings contained in this structure (if they are non-NULL) |
| // using the GlobalFree function. |
| LPWINHTTP_PROXY_INFO = ^WINHTTP_PROXY_INFO; |
| WINHTTP_PROXY_INFO = record |
| dwAccessType : DWORD; // see WINHTTP_ACCESS_* types below |
| lpszProxy : LPWSTR; // proxy server list |
| lpszProxyBypass : LPWSTR; // proxy bypass list |
| end; |
| |
| LPWINHTTP_PROXY_INFOW = ^WINHTTP_PROXY_INFOW; |
| WINHTTP_PROXY_INFOW = WINHTTP_PROXY_INFO; |
| |
| |
| WINHTTP_AUTOPROXY_OPTIONS = record |
| dwFlags : DWORD; |
| dwAutoDetectFlags : DWORD; |
| lpszAutoConfigUrl : LPCWSTR; |
| lpvReserved : LPVOID; |
| dwReserved : DWORD; |
| fAutoLogonIfChallenged : BOOL; |
| end; |
| |
| |
| WINHTTP_CURRENT_USER_IE_PROXY_CONFIG = record |
| fAutoDetect : BOOL; |
| lpszAutoConfigUrl : LPWSTR; |
| lpszProxy : LPWSTR; |
| lpszProxyBypass : LPWSTR; |
| end; |
| |
| |
| |
| |
| function WinHttpCloseHandle( aHandle : HINTERNET) : BOOL; stdcall; |
| |
| function WinHttpOpen( const pszAgentW : LPCWSTR; |
| const dwAccessType : DWORD; |
| const pszProxyW : LPCWSTR; |
| const pszProxyBypassW : LPCWSTR; |
| const dwFlags : DWORD |
| ) : HINTERNET; stdcall; |
| |
| function WinHttpConnect( const hSession : HINTERNET; |
| const pswzServerName : LPCWSTR; |
| const nServerPort : INTERNET_PORT; |
| const dwReserved : DWORD |
| ) : HINTERNET; stdcall; |
| |
| function WinHttpOpenRequest( const hConnect : HINTERNET; |
| const pwszVerb, pwszObjectName, pwszVersion, pwszReferrer : LPCWSTR; |
| const ppwszAcceptTypes : LPLPCWSTR; |
| const dwFlags : DWORD |
| ) : HINTERNET; stdcall; |
| |
| function WinHttpQueryOption( const hInternet : HINTERNET; |
| const dwOption : DWORD; |
| const pBuffer : Pointer; |
| var dwBufferLength : DWORD) : BOOL; stdcall; |
| |
| function WinHttpSetOption( const hInternet : HINTERNET; |
| const dwOption : DWORD; |
| const pBuffer : Pointer; |
| const dwBufferLength : DWORD) : BOOL; stdcall; |
| |
| function WinHttpSetTimeouts( const hRequestOrSession : HINTERNET; |
| const aResolveTimeout, aConnectTimeout, aSendTimeout, aReceiveTimeout : Int32 |
| ) : BOOL; stdcall; |
| |
| function WinHttpAddRequestHeaders( const hRequest : HINTERNET; |
| const pwszHeaders : LPCWSTR; |
| const dwHeadersLengthInChars : DWORD; |
| const dwModifiers : DWORD |
| ) : BOOL; stdcall; |
| |
| function WinHttpGetProxyForUrl( const hSession : HINTERNET; |
| const lpcwszUrl : LPCWSTR; |
| const options : WINHTTP_AUTOPROXY_OPTIONS; |
| const info : WINHTTP_PROXY_INFO |
| ) : BOOL; stdcall; |
| |
| function WinHttpGetIEProxyConfigForCurrentUser( var config : WINHTTP_CURRENT_USER_IE_PROXY_CONFIG |
| ) : BOOL; stdcall; |
| |
| |
| function WinHttpSendRequest( const hRequest : HINTERNET; |
| const lpszHeaders : LPCWSTR; |
| const dwHeadersLength : DWORD; |
| const lpOptional : Pointer; |
| const dwOptionalLength : DWORD; |
| const dwTotalLength : DWORD; |
| const pContext : Pointer |
| ) : BOOL; stdcall; |
| |
| function WinHttpWriteData( const hRequest : HINTERNET; |
| const pBuf : Pointer; |
| const dwBytesToWrite : DWORD; |
| out dwBytesWritten : DWORD |
| ) : BOOL; stdcall; |
| |
| function WinHttpReceiveResponse( const hRequest : HINTERNET; const lpReserved : Pointer) : BOOL; stdcall; |
| |
| function WinHttpQueryHeaders( const hRequest : HINTERNET; |
| const dwInfoLevel : DWORD; |
| const pwszName : LPCWSTR; |
| const lpBuffer : Pointer; |
| var dwBufferLength : DWORD; |
| var dwIndex : DWORD |
| ) : BOOL; stdcall; |
| |
| function WinHttpQueryDataAvailable( const hRequest : HINTERNET; |
| var dwNumberOfBytesAvailable : DWORD |
| ) : BOOL; stdcall; |
| |
| function WinHttpReadData( const hRequest : HINTERNET; |
| const lpBuffer : Pointer; |
| const dwBytesToRead : DWORD; |
| out dwBytesRead : DWORD |
| ) : BOOL; stdcall; |
| |
| function WinHttpCrackUrl( const pwszUrl : LPCWSTR; |
| const dwUrlLength : DWORD; |
| const dwFlags : DWORD; |
| var urlComponents : URL_COMPONENTS |
| ) : BOOL; stdcall; |
| |
| function WinHttpCreateUrl( const UrlComponents : URL_COMPONENTS; |
| const dwFlags : DWORD; |
| const pwszUrl : LPCWSTR; |
| var pdwUrlLength : DWORD |
| ) : BOOL; stdcall; |
| |
| |
| const |
| // ports |
| INTERNET_DEFAULT_PORT = 0; // use the protocol-specific default (80 or 443) |
| INTERNET_DEFAULT_HTTP_PORT = 80; |
| INTERNET_DEFAULT_HTTPS_PORT = 443; |
| |
| // flags for WinHttpOpenRequest(): |
| WINHTTP_FLAG_SECURE = $00800000; // use SSL if applicable (HTTPS) |
| WINHTTP_FLAG_ESCAPE_PERCENT = $00000004; // if escaping enabled, escape percent as well |
| WINHTTP_FLAG_NULL_CODEPAGE = $00000008; // assume all symbols are ASCII, use fast convertion |
| WINHTTP_FLAG_ESCAPE_DISABLE = $00000040; // disable escaping |
| WINHTTP_FLAG_ESCAPE_DISABLE_QUERY = $00000080; // if escaping enabled escape path part, but do not escape query |
| WINHTTP_FLAG_BYPASS_PROXY_CACHE = $00000100; // add "pragma: no-cache" request header |
| WINHTTP_FLAG_REFRESH = WINHTTP_FLAG_BYPASS_PROXY_CACHE; |
| |
| // flags for WinHttpOpen(): |
| WINHTTP_FLAG_ASYNC = $10000000; // want async session, requires WinHttpSetStatusCallback() usage |
| |
| // flags for WinHttpSendRequest(): |
| WINHTTP_NO_PROXY_NAME = nil; |
| WINHTTP_NO_PROXY_BYPASS = nil; |
| WINHTTP_NO_CLIENT_CERT_CONTEXT = nil; |
| WINHTTP_NO_REFERER = nil; |
| WINHTTP_DEFAULT_ACCEPT_TYPES = nil; |
| WINHTTP_NO_ADDITIONAL_HEADERS = nil; |
| WINHTTP_NO_REQUEST_DATA = nil; |
| WINHTTP_HEADER_NAME_BY_INDEX = nil; |
| WINHTTP_NO_OUTPUT_BUFFER = nil; |
| WINHTTP_NO_HEADER_INDEX = nil; |
| |
| // WinHttpAddRequestHeaders() dwModifiers |
| WINHTTP_ADDREQ_INDEX_MASK = $0000FFFF; |
| WINHTTP_ADDREQ_FLAGS_MASK = $FFFF0000; |
| |
| WINHTTP_ADDREQ_FLAG_ADD_IF_NEW = $10000000; |
| WINHTTP_ADDREQ_FLAG_ADD = $20000000; |
| WINHTTP_ADDREQ_FLAG_COALESCE_WITH_COMMA = $40000000; |
| WINHTTP_ADDREQ_FLAG_COALESCE_WITH_SEMICOLON = $01000000; |
| WINHTTP_ADDREQ_FLAG_COALESCE = WINHTTP_ADDREQ_FLAG_COALESCE_WITH_COMMA; |
| WINHTTP_ADDREQ_FLAG_REPLACE = $80000000; |
| |
| // URL functions |
| ICU_NO_ENCODE = $20000000; // Don't convert unsafe characters to escape sequence |
| ICU_DECODE = $10000000; // Convert %XX escape sequences to characters |
| ICU_NO_META = $08000000; // Don't convert .. etc. meta path sequences |
| ICU_ENCODE_SPACES_ONLY = $04000000; // Encode spaces only |
| ICU_BROWSER_MODE = $02000000; // Special encode/decode rules for browser |
| ICU_ENCODE_PERCENT = $00001000; // Encode any percent (ASCII25) |
| |
| ICU_ESCAPE = $80000000; // (un)escape URL characters |
| ICU_ESCAPE_AUTHORITY = $00002000; // causes InternetCreateUrlA to escape chars in authority components (user, pwd, host) |
| ICU_REJECT_USERPWD = $00004000; // rejects urls with username/pwd sections |
| |
| INTERNET_SCHEME_HTTP = INTERNET_SCHEME(1); |
| INTERNET_SCHEME_HTTPS = INTERNET_SCHEME(2); |
| INTERNET_SCHEME_FTP = INTERNET_SCHEME(3); |
| INTERNET_SCHEME_SOCKS = INTERNET_SCHEME(4); |
| |
| // options manifests for WinHttp{Query|Set}Option |
| WINHTTP_OPTION_CALLBACK = 1; |
| WINHTTP_OPTION_RESOLVE_TIMEOUT = 2; |
| WINHTTP_OPTION_CONNECT_TIMEOUT = 3; |
| WINHTTP_OPTION_CONNECT_RETRIES = 4; |
| WINHTTP_OPTION_SEND_TIMEOUT = 5; |
| WINHTTP_OPTION_RECEIVE_TIMEOUT = 6; |
| WINHTTP_OPTION_RECEIVE_RESPONSE_TIMEOUT = 7; |
| WINHTTP_OPTION_HANDLE_TYPE = 9; |
| WINHTTP_OPTION_READ_BUFFER_SIZE = 12; |
| WINHTTP_OPTION_WRITE_BUFFER_SIZE = 13; |
| WINHTTP_OPTION_PARENT_HANDLE = 21; |
| WINHTTP_OPTION_EXTENDED_ERROR = 24; |
| WINHTTP_OPTION_SECURITY_FLAGS = 31; |
| WINHTTP_OPTION_SECURITY_CERTIFICATE_STRUCT = 32; |
| WINHTTP_OPTION_URL = 34; |
| WINHTTP_OPTION_SECURITY_KEY_BITNESS = 36; |
| WINHTTP_OPTION_PROXY = 38; |
| WINHTTP_OPTION_PROXY_RESULT_ENTRY = 39; |
| WINHTTP_OPTION_USER_AGENT = 41; |
| WINHTTP_OPTION_CONTEXT_VALUE = 45; |
| WINHTTP_OPTION_CLIENT_CERT_CONTEXT = 47; |
| WINHTTP_OPTION_REQUEST_PRIORITY = 58; |
| WINHTTP_OPTION_HTTP_VERSION = 59; |
| WINHTTP_OPTION_DISABLE_FEATURE = 63; |
| WINHTTP_OPTION_CODEPAGE = 68; |
| WINHTTP_OPTION_MAX_CONNS_PER_SERVER = 73; |
| WINHTTP_OPTION_MAX_CONNS_PER_1_0_SERVER = 74; |
| WINHTTP_OPTION_AUTOLOGON_POLICY = 77; |
| WINHTTP_OPTION_SERVER_CERT_CONTEXT = 78; |
| WINHTTP_OPTION_ENABLE_FEATURE = 79; |
| WINHTTP_OPTION_WORKER_THREAD_COUNT = 80; |
| WINHTTP_OPTION_PASSPORT_COBRANDING_TEXT = 81; |
| WINHTTP_OPTION_PASSPORT_COBRANDING_URL = 82; |
| WINHTTP_OPTION_CONFIGURE_PASSPORT_AUTH = 83; |
| WINHTTP_OPTION_SECURE_PROTOCOLS = 84; |
| WINHTTP_OPTION_ENABLETRACING = 85; |
| WINHTTP_OPTION_PASSPORT_SIGN_OUT = 86; |
| WINHTTP_OPTION_PASSPORT_RETURN_URL = 87; |
| WINHTTP_OPTION_REDIRECT_POLICY = 88; |
| WINHTTP_OPTION_MAX_HTTP_AUTOMATIC_REDIRECTS = 89; |
| WINHTTP_OPTION_MAX_HTTP_STATUS_CONTINUE = 90; |
| WINHTTP_OPTION_MAX_RESPONSE_HEADER_SIZE = 91; |
| WINHTTP_OPTION_MAX_RESPONSE_DRAIN_SIZE = 92; |
| WINHTTP_OPTION_CONNECTION_INFO = 93; |
| WINHTTP_OPTION_CLIENT_CERT_ISSUER_LIST = 94; |
| WINHTTP_OPTION_SPN = 96; |
| WINHTTP_OPTION_GLOBAL_PROXY_CREDS = 97; |
| WINHTTP_OPTION_GLOBAL_SERVER_CREDS = 98; |
| WINHTTP_OPTION_UNLOAD_NOTIFY_EVENT = 99; |
| WINHTTP_OPTION_REJECT_USERPWD_IN_URL = 100; |
| WINHTTP_OPTION_USE_GLOBAL_SERVER_CREDENTIALS = 101; |
| WINHTTP_OPTION_RECEIVE_PROXY_CONNECT_RESPONSE = 103; |
| WINHTTP_OPTION_IS_PROXY_CONNECT_RESPONSE = 104; |
| WINHTTP_OPTION_SERVER_SPN_USED = 106; |
| WINHTTP_OPTION_PROXY_SPN_USED = 107; |
| WINHTTP_OPTION_SERVER_CBT = 108; |
| WINHTTP_OPTION_UNSAFE_HEADER_PARSING = 110; |
| WINHTTP_OPTION_ASSURED_NON_BLOCKING_CALLBACKS = 111; |
| WINHTTP_OPTION_UPGRADE_TO_WEB_SOCKET = 114; |
| WINHTTP_OPTION_WEB_SOCKET_CLOSE_TIMEOUT = 115; |
| WINHTTP_OPTION_WEB_SOCKET_KEEPALIVE_INTERVAL = 116; |
| WINHTTP_OPTION_DECOMPRESSION = 118; |
| WINHTTP_OPTION_WEB_SOCKET_RECEIVE_BUFFER_SIZE = 122; |
| WINHTTP_OPTION_WEB_SOCKET_SEND_BUFFER_SIZE = 123; |
| WINHTTP_OPTION_TCP_PRIORITY_HINT = 128; |
| WINHTTP_OPTION_CONNECTION_FILTER = 131; |
| WINHTTP_OPTION_ENABLE_HTTP_PROTOCOL = 133; |
| WINHTTP_OPTION_HTTP_PROTOCOL_USED = 134; |
| WINHTTP_OPTION_KDC_PROXY_SETTINGS = 136; |
| WINHTTP_OPTION_ENCODE_EXTRA = 138; |
| WINHTTP_OPTION_DISABLE_STREAM_QUEUE = 139; |
| WINHTTP_OPTION_IPV6_FAST_FALLBACK = 140; |
| WINHTTP_OPTION_CONNECTION_STATS_V0 = 141; |
| WINHTTP_OPTION_REQUEST_TIMES = 142; |
| WINHTTP_OPTION_EXPIRE_CONNECTION = 143; |
| WINHTTP_OPTION_DISABLE_SECURE_PROTOCOL_FALLBACK = 144; |
| WINHTTP_OPTION_HTTP_PROTOCOL_REQUIRED = 145; |
| WINHTTP_OPTION_REQUEST_STATS = 146; |
| WINHTTP_OPTION_SERVER_CERT_CHAIN_CONTEXT = 147; |
| WINHTTP_OPTION_CONNECTION_STATS_V1 = 150; |
| WINHTTP_OPTION_SECURITY_INFO = 151; |
| WINHTTP_OPTION_TCP_KEEPALIVE = 152; |
| WINHTTP_OPTION_TCP_FAST_OPEN = 153; |
| WINHTTP_OPTION_TCP_FALSE_START = 154; |
| WINHTTP_OPTION_IGNORE_CERT_REVOCATION_OFFLINE = 155; |
| WINHTTP_OPTION_TLS_PROTOCOL_INSECURE_FALLBACK = 158; |
| WINHTTP_OPTION_STREAM_ERROR_CODE = 159; |
| WINHTTP_OPTION_REQUIRE_STREAM_END = 160; |
| WINHTTP_OPTION_ENABLE_HTTP2_PLUS_CLIENT_CERT = 161; |
| WINHTTP_OPTION_FAILED_CONNECTION_RETRIES = 162; |
| WINHTTP_OPTION_HTTP2_KEEPALIVE = 164; |
| WINHTTP_OPTION_RESOLUTION_HOSTNAME = 165; |
| WINHTTP_OPTION_SET_TOKEN_BINDING = 166; |
| WINHTTP_OPTION_TOKEN_BINDING_PUBLIC_KEY = 167; |
| WINHTTP_OPTION_REFERER_TOKEN_BINDING_HOSTNAME = 168; |
| WINHTTP_OPTION_HTTP2_PLUS_TRANSFER_ENCODING = 169; |
| WINHTTP_OPTION_RESOLVER_CACHE_CONFIG = 170; |
| WINHTTP_OPTION_DISABLE_CERT_CHAIN_BUILDING = 171; |
| WINHTTP_OPTION_BACKGROUND_CONNECTIONS = 172; |
| WINHTTP_OPTION_FIRST_AVAILABLE_CONNECTION = 173; |
| WINHTTP_OPTION_TCP_PRIORITY_STATUS = 177; |
| WINHTTP_OPTION_CONNECTION_GUID = 178; |
| WINHTTP_OPTION_MATCH_CONNECTION_GUID = 179; |
| WINHTTP_OPTION_HTTP2_RECEIVE_WINDOW = 183; |
| WINHTTP_OPTION_FEATURE_SUPPORTED = 184; |
| WINHTTP_OPTION_QUIC_STATS = 185; |
| WINHTTP_OPTION_HTTP3_KEEPALIVE = 188; |
| WINHTTP_OPTION_HTTP3_HANDSHAKE_TIMEOUT = 189; |
| WINHTTP_OPTION_HTTP3_INITIAL_RTT = 190; |
| WINHTTP_OPTION_HTTP3_STREAM_ERROR_CODE = 191; |
| WINHTTP_OPTION_REQUEST_ANNOTATION = 192; |
| WINHTTP_OPTION_DISABLE_PROXY_AUTH_SCHEMES = 193; |
| WINHTTP_OPTION_REVERT_IMPERSONATION_SERVER_CERT = 194; |
| WINHTTP_OPTION_DISABLE_GLOBAL_POOLING = 195; |
| WINHTTP_OPTION_USE_SESSION_SCH_CRED = 196; |
| WINHTTP_OPTION_QUIC_STATS_V2 = 200; |
| WINHTTP_OPTION_QUIC_STREAM_STATS = 202; |
| WINHTTP_OPTION_USE_LOOKASIDE = 203; |
| WINHTTP_OPTION_ERROR_LOG_GUID = 204; |
| WINHTTP_OPTION_ENABLE_FAST_FORWARDING = 205; |
| WINHTTP_OPTION_FAST_FORWARDING_RESPONSE_DATA = 206; |
| WINHTTP_OPTION_UPGRADE_TO_PROTOCOL = 207; |
| WINHTTP_OPTION_CONNECTION_STATS_V2 = 208; |
| WINHTTP_OPTION_FAST_FORWARDING_RESPONSE_STATUS = 209; |
| |
| WINHTTP_FIRST_OPTION = WINHTTP_OPTION_CALLBACK; |
| //WINHTTP_LAST_OPTION = WINHTTP_OPTION_FAST_FORWARDING_RESPONSE_STATUS; |
| |
| WINHTTP_OPTION_USERNAME = $1000; |
| WINHTTP_OPTION_PASSWORD = $1001; |
| WINHTTP_OPTION_PROXY_USERNAME = $1002; |
| WINHTTP_OPTION_PROXY_PASSWORD = $1003; |
| |
| // manifest value for WINHTTP_OPTION_MAX_CONNS_PER_SERVER and WINHTTP_OPTION_MAX_CONNS_PER_1_0_SERVER |
| WINHTTP_CONNS_PER_SERVER_UNLIMITED = $FFFFFFFF; |
| |
| // values for WINHTTP_OPTION_AUTOLOGON_POLICY |
| WINHTTP_AUTOLOGON_SECURITY_LEVEL_MEDIUM = 0; |
| WINHTTP_AUTOLOGON_SECURITY_LEVEL_LOW = 1; |
| WINHTTP_AUTOLOGON_SECURITY_LEVEL_HIGH = 2; |
| |
| WINHTTP_AUTOLOGON_SECURITY_LEVEL_DEFAULT = WINHTTP_AUTOLOGON_SECURITY_LEVEL_MEDIUM; |
| |
| // values for WINHTTP_OPTION_REDIRECT_POLICY |
| WINHTTP_OPTION_REDIRECT_POLICY_NEVER = 0; |
| WINHTTP_OPTION_REDIRECT_POLICY_DISALLOW_HTTPS_TO_HTTP = 1; |
| WINHTTP_OPTION_REDIRECT_POLICY_ALWAYS = 2; |
| |
| WINHTTP_OPTION_REDIRECT_POLICY_LAST = WINHTTP_OPTION_REDIRECT_POLICY_ALWAYS; |
| WINHTTP_OPTION_REDIRECT_POLICY_DEFAULT = WINHTTP_OPTION_REDIRECT_POLICY_DISALLOW_HTTPS_TO_HTTP; |
| |
| WINHTTP_DISABLE_PASSPORT_AUTH = $00000000; |
| WINHTTP_ENABLE_PASSPORT_AUTH = $10000000; |
| WINHTTP_DISABLE_PASSPORT_KEYRING = $20000000; |
| WINHTTP_ENABLE_PASSPORT_KEYRING = $40000000; |
| |
| // values for WINHTTP_OPTION_DISABLE_FEATURE |
| WINHTTP_DISABLE_COOKIES = $00000001; |
| WINHTTP_DISABLE_REDIRECTS = $00000002; |
| WINHTTP_DISABLE_AUTHENTICATION = $00000004; |
| WINHTTP_DISABLE_KEEP_ALIVE = $00000008; |
| |
| // values for WINHTTP_OPTION_ENABLE_FEATURE |
| WINHTTP_ENABLE_SSL_REVOCATION = $00000001; |
| WINHTTP_ENABLE_SSL_REVERT_IMPERSONATION = $00000002; |
| |
| // values for WINHTTP_OPTION_SPN |
| WINHTTP_DISABLE_SPN_SERVER_PORT = $00000000; |
| WINHTTP_ENABLE_SPN_SERVER_PORT = $00000001; |
| WINHTTP_OPTION_SPN_MASK = WINHTTP_ENABLE_SPN_SERVER_PORT; |
| |
| // winhttp handle types |
| WINHTTP_HANDLE_TYPE_SESSION = 1; |
| WINHTTP_HANDLE_TYPE_CONNECT = 2; |
| WINHTTP_HANDLE_TYPE_REQUEST = 3; |
| |
| // values for auth schemes |
| WINHTTP_AUTH_SCHEME_BASIC = $00000001; |
| WINHTTP_AUTH_SCHEME_NTLM = $00000002; |
| WINHTTP_AUTH_SCHEME_PASSPORT = $00000004; |
| WINHTTP_AUTH_SCHEME_DIGEST = $00000008; |
| WINHTTP_AUTH_SCHEME_NEGOTIATE = $00000010; |
| |
| // WinHttp supported Authentication Targets |
| WINHTTP_AUTH_TARGET_SERVER = $00000000; |
| WINHTTP_AUTH_TARGET_PROXY = $00000001; |
| |
| // options for WINHTTP_OPTION_DECOMPRESSION |
| WINHTTP_DECOMPRESSION_FLAG_GZIP = $00000001; |
| WINHTTP_DECOMPRESSION_FLAG_DEFLATE = $00000002; |
| WINHTTP_DECOMPRESSION_FLAG_ALL = WINHTTP_DECOMPRESSION_FLAG_GZIP |
| or WINHTTP_DECOMPRESSION_FLAG_DEFLATE; |
| |
| // WinHttpOpen dwAccessType values |
| WINHTTP_ACCESS_TYPE_DEFAULT_PROXY = 0; |
| WINHTTP_ACCESS_TYPE_NO_PROXY = 1; |
| WINHTTP_ACCESS_TYPE_NAMED_PROXY = 3; |
| WINHTTP_ACCESS_TYPE_AUTOMATIC_PROXY = 4; |
| |
| WINHTTP_IGNORE_REQUEST_TOTAL_LENGTH = 0; |
| |
| // values for WINHTTP_OPTION_SECURITY_FLAGS |
| |
| // query only |
| SECURITY_FLAG_SECURE = $00000001; // can query only |
| SECURITY_FLAG_STRENGTH_WEAK = $10000000; |
| SECURITY_FLAG_STRENGTH_MEDIUM = $40000000; |
| SECURITY_FLAG_STRENGTH_STRONG = $20000000; |
| |
| // query flags |
| WINHTTP_QUERY_MIME_VERSION = 0; |
| WINHTTP_QUERY_CONTENT_TYPE = 1; |
| WINHTTP_QUERY_CONTENT_TRANSFER_ENCODING = 2; |
| WINHTTP_QUERY_CONTENT_ID = 3; |
| WINHTTP_QUERY_CONTENT_DESCRIPTION = 4; |
| WINHTTP_QUERY_CONTENT_LENGTH = 5; |
| WINHTTP_QUERY_CONTENT_LANGUAGE = 6; |
| WINHTTP_QUERY_ALLOW = 7; |
| WINHTTP_QUERY_PUBLIC = 8; |
| WINHTTP_QUERY_DATE = 9; |
| WINHTTP_QUERY_EXPIRES = 10; |
| WINHTTP_QUERY_LAST_MODIFIED = 11; |
| WINHTTP_QUERY_MESSAGE_ID = 12; |
| WINHTTP_QUERY_URI = 13; |
| WINHTTP_QUERY_DERIVED_FROM = 14; |
| WINHTTP_QUERY_COST = 15; |
| WINHTTP_QUERY_LINK = 16; |
| WINHTTP_QUERY_PRAGMA = 17; |
| WINHTTP_QUERY_VERSION = 18; |
| WINHTTP_QUERY_STATUS_CODE = 19; |
| WINHTTP_QUERY_STATUS_TEXT = 20; |
| WINHTTP_QUERY_RAW_HEADERS = 21; |
| WINHTTP_QUERY_RAW_HEADERS_CRLF = 22; |
| WINHTTP_QUERY_CONNECTION = 23; |
| WINHTTP_QUERY_ACCEPT = 24; |
| WINHTTP_QUERY_ACCEPT_CHARSET = 25; |
| WINHTTP_QUERY_ACCEPT_ENCODING = 26; |
| WINHTTP_QUERY_ACCEPT_LANGUAGE = 27; |
| WINHTTP_QUERY_AUTHORIZATION = 28; |
| WINHTTP_QUERY_CONTENT_ENCODING = 29; |
| WINHTTP_QUERY_FORWARDED = 30; |
| WINHTTP_QUERY_FROM = 31; |
| WINHTTP_QUERY_IF_MODIFIED_SINCE = 32; |
| WINHTTP_QUERY_LOCATION = 33; |
| WINHTTP_QUERY_ORIG_URI = 34; |
| WINHTTP_QUERY_REFERER = 35; |
| WINHTTP_QUERY_RETRY_AFTER = 36; |
| WINHTTP_QUERY_SERVER = 37; |
| WINHTTP_QUERY_TITLE = 38; |
| WINHTTP_QUERY_USER_AGENT = 39; |
| WINHTTP_QUERY_WWW_AUTHENTICATE = 40; |
| WINHTTP_QUERY_PROXY_AUTHENTICATE = 41; |
| WINHTTP_QUERY_ACCEPT_RANGES = 42; |
| WINHTTP_QUERY_SET_COOKIE = 43; |
| WINHTTP_QUERY_COOKIE = 44; |
| WINHTTP_QUERY_REQUEST_METHOD = 45; |
| WINHTTP_QUERY_REFRESH = 46; |
| WINHTTP_QUERY_CONTENT_DISPOSITION = 47; |
| WINHTTP_QUERY_AGE = 48; |
| WINHTTP_QUERY_CACHE_CONTROL = 49; |
| WINHTTP_QUERY_CONTENT_BASE = 50; |
| WINHTTP_QUERY_CONTENT_LOCATION = 51; |
| WINHTTP_QUERY_CONTENT_MD5 = 52; |
| WINHTTP_QUERY_CONTENT_RANGE = 53; |
| WINHTTP_QUERY_ETAG = 54; |
| WINHTTP_QUERY_HOST = 55; |
| WINHTTP_QUERY_IF_MATCH = 56; |
| WINHTTP_QUERY_IF_NONE_MATCH = 57; |
| WINHTTP_QUERY_IF_RANGE = 58; |
| WINHTTP_QUERY_IF_UNMODIFIED_SINCE = 59; |
| WINHTTP_QUERY_MAX_FORWARDS = 60; |
| WINHTTP_QUERY_PROXY_AUTHORIZATION = 61; |
| WINHTTP_QUERY_RANGE = 62; |
| WINHTTP_QUERY_TRANSFER_ENCODING = 63; |
| WINHTTP_QUERY_UPGRADE = 64; |
| WINHTTP_QUERY_VARY = 65; |
| WINHTTP_QUERY_VIA = 66; |
| WINHTTP_QUERY_WARNING = 67; |
| WINHTTP_QUERY_EXPECT = 68; |
| WINHTTP_QUERY_PROXY_CONNECTION = 69; |
| WINHTTP_QUERY_UNLESS_MODIFIED_SINCE = 70; |
| WINHTTP_QUERY_PROXY_SUPPORT = 75; |
| WINHTTP_QUERY_AUTHENTICATION_INFO = 76; |
| WINHTTP_QUERY_PASSPORT_URLS = 77; |
| WINHTTP_QUERY_PASSPORT_CONFIG = 78; |
| WINHTTP_QUERY_MAX = 78; |
| WINHTTP_QUERY_CUSTOM = 65535; |
| WINHTTP_QUERY_FLAG_REQUEST_HEADERS = $80000000; |
| WINHTTP_QUERY_FLAG_SYSTEMTIME = $40000000; |
| WINHTTP_QUERY_FLAG_NUMBER = $20000000; |
| WINHTTP_QUERY_FLAG_NUMBER64 = $08000000; |
| |
| // Secure connection error status flags |
| WINHTTP_CALLBACK_STATUS_FLAG_CERT_REV_FAILED = $00000001; |
| WINHTTP_CALLBACK_STATUS_FLAG_INVALID_CERT = $00000002; |
| WINHTTP_CALLBACK_STATUS_FLAG_CERT_REVOKED = $00000004; |
| WINHTTP_CALLBACK_STATUS_FLAG_INVALID_CA = $00000008; |
| WINHTTP_CALLBACK_STATUS_FLAG_CERT_CN_INVALID = $00000010; |
| WINHTTP_CALLBACK_STATUS_FLAG_CERT_DATE_INVALID = $00000020; |
| WINHTTP_CALLBACK_STATUS_FLAG_CERT_WRONG_USAGE = $00000040; |
| WINHTTP_CALLBACK_STATUS_FLAG_SECURITY_CHANNEL_ERROR = $80000000; |
| |
| WINHTTP_FLAG_SECURE_PROTOCOL_SSL2 = $00000008; |
| WINHTTP_FLAG_SECURE_PROTOCOL_SSL3 = $00000020; |
| WINHTTP_FLAG_SECURE_PROTOCOL_TLS1 = $00000080; |
| WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_1 = $00000200; |
| WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_2 = $00000800; |
| WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_3 = $00002000; |
| |
| // Note: SECURE_PROTOCOL_ALL does NOT include TLS1.1 and higher! |
| WINHTTP_FLAG_SECURE_PROTOCOL_ALL = WINHTTP_FLAG_SECURE_PROTOCOL_SSL2 |
| or WINHTTP_FLAG_SECURE_PROTOCOL_SSL3 |
| or WINHTTP_FLAG_SECURE_PROTOCOL_TLS1; |
| |
| // AutoProxy |
| WINHTTP_AUTOPROXY_AUTO_DETECT = $00000001; |
| WINHTTP_AUTOPROXY_CONFIG_URL = $00000002; |
| WINHTTP_AUTOPROXY_HOST_KEEPCASE = $00000004; |
| WINHTTP_AUTOPROXY_HOST_LOWERCASE = $00000008; |
| WINHTTP_AUTOPROXY_ALLOW_AUTOCONFIG = $00000100; |
| WINHTTP_AUTOPROXY_ALLOW_STATIC = $00000200; |
| WINHTTP_AUTOPROXY_ALLOW_CM = $00000400; |
| WINHTTP_AUTOPROXY_RUN_INPROCESS = $00010000; |
| WINHTTP_AUTOPROXY_RUN_OUTPROCESS_ONLY = $00020000; |
| WINHTTP_AUTOPROXY_NO_DIRECTACCESS = $00040000; |
| WINHTTP_AUTOPROXY_NO_CACHE_CLIENT = $00080000; |
| WINHTTP_AUTOPROXY_NO_CACHE_SVC = $00100000; |
| WINHTTP_AUTOPROXY_SORT_RESULTS = $00400000; |
| |
| // Flags for dwAutoDetectFlags |
| WINHTTP_AUTO_DETECT_TYPE_DHCP = $00000001; |
| WINHTTP_AUTO_DETECT_TYPE_DNS_A = $00000002; |
| |
| const |
| WINHTTP_ERROR_BASE = 12000; |
| ERROR_WINHTTP_OUT_OF_HANDLES = WINHTTP_ERROR_BASE + 1; |
| ERROR_WINHTTP_TIMEOUT = WINHTTP_ERROR_BASE + 2; |
| ERROR_WINHTTP_INTERNAL_ERROR = WINHTTP_ERROR_BASE + 4; |
| ERROR_WINHTTP_INVALID_URL = WINHTTP_ERROR_BASE + 5; |
| ERROR_WINHTTP_UNRECOGNIZED_SCHEME = WINHTTP_ERROR_BASE + 6; |
| ERROR_WINHTTP_NAME_NOT_RESOLVED = WINHTTP_ERROR_BASE + 7; |
| ERROR_WINHTTP_INVALID_OPTION = WINHTTP_ERROR_BASE + 9; |
| ERROR_WINHTTP_OPTION_NOT_SETTABLE = WINHTTP_ERROR_BASE + 11; |
| ERROR_WINHTTP_SHUTDOWN = WINHTTP_ERROR_BASE + 12; |
| ERROR_WINHTTP_LOGIN_FAILURE = WINHTTP_ERROR_BASE + 15; |
| ERROR_WINHTTP_OPERATION_CANCELLED = WINHTTP_ERROR_BASE + 17; |
| ERROR_WINHTTP_INCORRECT_HANDLE_TYPE = WINHTTP_ERROR_BASE + 18; |
| ERROR_WINHTTP_INCORRECT_HANDLE_STATE = WINHTTP_ERROR_BASE + 19; |
| ERROR_WINHTTP_CANNOT_CONNECT = WINHTTP_ERROR_BASE + 29; |
| ERROR_WINHTTP_CONNECTION_ERROR = WINHTTP_ERROR_BASE + 30; |
| ERROR_WINHTTP_RESEND_REQUEST = WINHTTP_ERROR_BASE + 32; |
| //ERROR_WINHTTP_SECURE_CERT_DATE_INVALID = WINHTTP_ERROR_BASE + 37; - see below |
| //ERROR_WINHTTP_SECURE_CERT_CN_INVALID = WINHTTP_ERROR_BASE + 38; - see below |
| ERROR_WINHTTP_CLIENT_AUTH_CERT_NEEDED = WINHTTP_ERROR_BASE + 44; |
| //ERROR_WINHTTP_SECURE_INVALID_CA = WINHTTP_ERROR_BASE + 45; - see below |
| //ERROR_WINHTTP_SECURE_CERT_REV_FAILED = WINHTTP_ERROR_BASE + 57; - see below |
| ERROR_WINHTTP_CANNOT_CALL_BEFORE_OPEN = WINHTTP_ERROR_BASE + 100; |
| ERROR_WINHTTP_CANNOT_CALL_BEFORE_SEND = WINHTTP_ERROR_BASE + 101; |
| ERROR_WINHTTP_CANNOT_CALL_AFTER_SEND = WINHTTP_ERROR_BASE + 102; |
| ERROR_WINHTTP_CANNOT_CALL_AFTER_OPEN = WINHTTP_ERROR_BASE + 103; |
| ERROR_WINHTTP_HEADER_NOT_FOUND = WINHTTP_ERROR_BASE + 150; |
| ERROR_WINHTTP_INVALID_SERVER_RESPONSE = WINHTTP_ERROR_BASE + 152; |
| ERROR_WINHTTP_INVALID_HEADER = WINHTTP_ERROR_BASE + 153; |
| ERROR_WINHTTP_INVALID_QUERY_REQUEST = WINHTTP_ERROR_BASE + 154; |
| ERROR_WINHTTP_HEADER_ALREADY_EXISTS = WINHTTP_ERROR_BASE + 155; |
| ERROR_WINHTTP_REDIRECT_FAILED = WINHTTP_ERROR_BASE + 156; |
| //ERROR_WINHTTP_SECURE_CHANNEL_ERROR = WINHTTP_ERROR_BASE + 157; - see below |
| ERROR_WINHTTP_BAD_AUTO_PROXY_SCRIPT = WINHTTP_ERROR_BASE + 166; |
| ERROR_WINHTTP_UNABLE_TO_DOWNLOAD_SCRIPT = WINHTTP_ERROR_BASE + 167; |
| //ERROR_WINHTTP_SECURE_INVALID_CERT = WINHTTP_ERROR_BASE + 169; - see below |
| ERROR_WINHTTP_NOT_INITIALIZED = WINHTTP_ERROR_BASE + 172; |
| ERROR_WINHTTP_SECURE_FAILURE = WINHTTP_ERROR_BASE + 175; |
| ERROR_WINHTTP_UNHANDLED_SCRIPT_TYPE = WINHTTP_ERROR_BASE + 176; |
| ERROR_WINHTTP_SCRIPT_EXECUTION_ERROR = WINHTTP_ERROR_BASE + 177; |
| ERROR_WINHTTP_AUTO_PROXY_SERVICE_ERROR = WINHTTP_ERROR_BASE + 178; |
| |
| // Certificate security errors. Additional information is provided |
| // via the WINHTTP_CALLBACK_STATUS_SECURE_FAILURE callback notification. |
| ERROR_WINHTTP_SECURE_CERT_DATE_INVALID = WINHTTP_ERROR_BASE + 37; |
| ERROR_WINHTTP_SECURE_CERT_CN_INVALID = WINHTTP_ERROR_BASE + 38; |
| ERROR_WINHTTP_SECURE_INVALID_CA = WINHTTP_ERROR_BASE + 45; |
| ERROR_WINHTTP_SECURE_CERT_REV_FAILED = WINHTTP_ERROR_BASE + 57; |
| ERROR_WINHTTP_SECURE_CHANNEL_ERROR = WINHTTP_ERROR_BASE + 157; |
| ERROR_WINHTTP_SECURE_INVALID_CERT = WINHTTP_ERROR_BASE + 169; |
| ERROR_WINHTTP_SECURE_CERT_REVOKED = WINHTTP_ERROR_BASE + 170; |
| ERROR_WINHTTP_SECURE_CERT_WRONG_USAGE = WINHTTP_ERROR_BASE + 179; |
| |
| ERROR_WINHTTP_AUTODETECTION_FAILED = WINHTTP_ERROR_BASE + 180; |
| ERROR_WINHTTP_HEADER_COUNT_EXCEEDED = WINHTTP_ERROR_BASE + 181; |
| ERROR_WINHTTP_HEADER_SIZE_OVERFLOW = WINHTTP_ERROR_BASE + 182; |
| ERROR_WINHTTP_CHUNKED_ENCODING_HEADER_SIZE_OVERFLOW = WINHTTP_ERROR_BASE + 183; |
| ERROR_WINHTTP_RESPONSE_DRAIN_OVERFLOW = WINHTTP_ERROR_BASE + 184; |
| ERROR_WINHTTP_CLIENT_CERT_NO_PRIVATE_KEY = WINHTTP_ERROR_BASE + 185; |
| ERROR_WINHTTP_CLIENT_CERT_NO_ACCESS_PRIVATE_KEY = WINHTTP_ERROR_BASE + 186; |
| ERROR_WINHTTP_CLIENT_AUTH_CERT_NEEDED_PROXY = WINHTTP_ERROR_BASE + 187; |
| ERROR_WINHTTP_SECURE_FAILURE_PROXY = WINHTTP_ERROR_BASE + 188; |
| ERROR_WINHTTP_RESERVED_189 = WINHTTP_ERROR_BASE + 189; |
| ERROR_WINHTTP_HTTP_PROTOCOL_MISMATCH = WINHTTP_ERROR_BASE + 190; |
| |
| WINHTTP_ERROR_LAST = ERROR_WINHTTP_HTTP_PROTOCOL_MISMATCH; |
| |
| |
| |
| |
| const |
| WINHTTP_THRIFT_DEFAULTS = WINHTTP_FLAG_NULL_CODEPAGE |
| or WINHTTP_FLAG_BYPASS_PROXY_CACHE |
| or WINHTTP_FLAG_ESCAPE_DISABLE; |
| |
| |
| |
| type |
| IWinHTTPSession = interface; |
| IWinHTTPConnection = interface; |
| |
| IWinHTTPRequest = interface |
| ['{FADA4B45-D447-4F07-8361-1AD6656E5E8C}'] |
| function Handle : HINTERNET; |
| function Connection : IWinHTTPConnection; |
| function AddRequestHeader( const aHeader : string; const addflag : DWORD = WINHTTP_ADDREQ_FLAG_ADD) : Boolean; |
| function SetTimeouts( const aResolveTimeout, aConnectTimeout, aSendTimeout, aReceiveTimeout : Int32) : Boolean; |
| procedure TryAutoProxy( const aUrl : string); |
| procedure EnableAutomaticContentDecompression( const aEnable : Boolean); |
| function SendRequest( const pBuf : Pointer; const dwBytes : DWORD; const dwExtra : DWORD = 0) : Boolean; |
| function WriteExtraData( const pBuf : Pointer; const dwBytes : DWORD) : DWORD; |
| function FlushAndReceiveResponse : Boolean; |
| function ReadData( const dwRead : DWORD) : TBytes; overload; |
| function ReadData( const pBuf : Pointer; const dwRead : DWORD) : DWORD; overload; |
| function QueryDataAvailable : DWORD; |
| function QueryTotalResponseSize( out dwSize : DWORD) : Boolean; |
| function QueryHttpStatus( out dwStatusCode : DWORD; out sStatusText : string) : Boolean; |
| end; |
| |
| IWinHTTPConnection = interface |
| ['{ED5BCA49-84D6-4CFE-BF18-3238B1FF2AFB}'] |
| function Handle : HINTERNET; |
| function Session : IWinHTTPSession; |
| function OpenRequest( const secure : Boolean; const aVerb, aObjName, aAcceptTypes : UnicodeString) : IWinHTTPRequest; |
| end; |
| |
| IWinHTTPSession = interface |
| ['{261ADCB7-5465-4407-8840-468C17F009F0}'] |
| function Handle : HINTERNET; |
| function Connect( const aHostName : UnicodeString; const aPort : INTERNET_PORT = INTERNET_DEFAULT_PORT) : IWinHTTPConnection; |
| function SetTimeouts( const aResolveTimeout, aConnectTimeout, aSendTimeout, aReceiveTimeout : Int32) : Boolean; |
| function EnableSecureProtocols( const aFlagSet : DWORD) : Boolean; |
| end; |
| |
| IWinHTTPUrl = interface |
| ['{78BE977C-4171-4AF5-A250-FD2890205E63}'] |
| // url parts getter |
| function GetScheme : UnicodeString; |
| function GetNumScheme : INTERNET_SCHEME; |
| function GetHostName : UnicodeString; |
| function GetPort : INTERNET_PORT; |
| function GetUserName : UnicodeString; |
| function GetPassword : UnicodeString; |
| function GetUrlPath : UnicodeString; |
| function GetExtraInfo : UnicodeString; |
| |
| // url parts setter |
| procedure SetScheme( const value : UnicodeString); |
| procedure SetHostName ( const value : UnicodeString); |
| procedure SetPort( const value : INTERNET_PORT); |
| procedure SetUserName( const value : UnicodeString); |
| procedure SetPassword( const value : UnicodeString); |
| procedure SetUrlPath( const value : UnicodeString); |
| procedure SetExtraInfo( const value : UnicodeString); |
| |
| // url as a whole |
| function BuildUrl : UnicodeString; |
| procedure CrackUrl( const value : UnicodeString); |
| |
| // url parts |
| property Scheme : UnicodeString read GetScheme write SetScheme; |
| property NumScheme : INTERNET_SCHEME read GetNumScheme; // readonly |
| property HostName : UnicodeString read GetHostName write SetHostName; |
| property Port : INTERNET_PORT read GetPort write SetPort; |
| property UserName : UnicodeString read GetUserName write SetUserName; |
| property Password : UnicodeString read GetPassword write SetPassword; |
| property UrlPath : UnicodeString read GetUrlPath write SetUrlPath; |
| property ExtraInfo : UnicodeString read GetExtraInfo write SetExtraInfo; |
| |
| // url as a whole |
| property CompleteURL : UnicodeString read BuildUrl write CrackUrl; |
| end; |
| |
| |
| |
| |
| type |
| TWinHTTPHandleObjectImpl = class( TInterfacedObject) |
| strict protected |
| FHandle : HINTERNET; |
| function Handle : HINTERNET; |
| public |
| constructor Create( const aHandle : HINTERNET); |
| destructor Destroy; override; |
| end; |
| |
| |
| TWinHTTPSessionImpl = class( TWinHTTPHandleObjectImpl, IWinHTTPSession) |
| strict protected |
| |
| // IWinHTTPSession |
| function Connect( const aHostName : UnicodeString; const aPort : INTERNET_PORT = INTERNET_DEFAULT_PORT) : IWinHTTPConnection; |
| function SetTimeouts( const aResolveTimeout, aConnectTimeout, aSendTimeout, aReceiveTimeout : Int32) : Boolean; |
| function EnableSecureProtocols( const aFlagSet : DWORD) : Boolean; |
| public |
| constructor Create( const aAgent : UnicodeString; |
| const aAccessType : DWORD = WINHTTP_ACCESS_TYPE_DEFAULT_PROXY; |
| const aProxy : UnicodeString = ''; |
| const aProxyBypass : UnicodeString = ''; |
| const aFlags : DWORD = 0); |
| destructor Destroy; override; |
| end; |
| |
| |
| TWinHTTPConnectionImpl = class( TWinHTTPHandleObjectImpl, IWinHTTPConnection) |
| strict protected |
| FSession : IWinHTTPSession; |
| |
| // IWinHTTPConnection |
| function OpenRequest( const secure : Boolean; const aVerb, aObjName, aAcceptTypes : UnicodeString) : IWinHTTPRequest; |
| function Session : IWinHTTPSession; |
| |
| public |
| constructor Create( const aSession : IWinHTTPSession; const aHostName : UnicodeString; const aPort : INTERNET_PORT); |
| destructor Destroy; override; |
| end; |
| |
| |
| TAcceptTypesArray = array of string; |
| |
| TWinHTTPRequestImpl = class( TWinHTTPHandleObjectImpl, IWinHTTPRequest) |
| strict protected |
| FConnection : IWinHTTPConnection; |
| |
| // IWinHTTPRequest |
| function Connection : IWinHTTPConnection; |
| function AddRequestHeader( const aHeader : string; const addflag : DWORD = WINHTTP_ADDREQ_FLAG_ADD) : Boolean; |
| function SetTimeouts( const aResolveTimeout, aConnectTimeout, aSendTimeout, aReceiveTimeout : Int32) : Boolean; |
| procedure TryAutoProxy( const aUrl : string); |
| procedure EnableAutomaticContentDecompression( const aEnable : Boolean); |
| function SendRequest( const pBuf : Pointer; const dwBytes : DWORD; const dwExtra : DWORD = 0) : Boolean; |
| function WriteExtraData( const pBuf : Pointer; const dwBytes : DWORD) : DWORD; |
| function FlushAndReceiveResponse : Boolean; |
| function ReadData( const dwRead : DWORD) : TBytes; overload; |
| function ReadData( const pBuf : Pointer; const dwRead : DWORD) : DWORD; overload; |
| function QueryDataAvailable : DWORD; |
| function QueryTotalResponseSize( out dwSize : DWORD) : Boolean; |
| function QueryHttpStatus( out dwStatusCode : DWORD; out sStatusText : string) : Boolean; |
| |
| public |
| constructor Create( const aConnection : IWinHTTPConnection; |
| const aVerb, aObjName : UnicodeString; |
| const aVersion : UnicodeString = ''; |
| const aReferrer : UnicodeString = ''; |
| const aAcceptTypes : UnicodeString = '*/*'; |
| const aFlags : DWORD = WINHTTP_THRIFT_DEFAULTS |
| ); |
| |
| destructor Destroy; override; |
| end; |
| |
| |
| TWinHTTPUrlImpl = class( TInterfacedObject, IWinHTTPUrl) |
| strict private |
| FScheme : UnicodeString; |
| FNumScheme : INTERNET_SCHEME; |
| FHostName : UnicodeString; |
| FPort : INTERNET_PORT; |
| FUserName : UnicodeString; |
| FPassword : UnicodeString; |
| FUrlPath : UnicodeString; |
| FExtraInfo : UnicodeString; |
| |
| strict protected |
| // url parts getter |
| function GetScheme : UnicodeString; |
| function GetNumScheme : INTERNET_SCHEME; |
| function GetHostName : UnicodeString; |
| function GetPort : INTERNET_PORT; |
| function GetUserName : UnicodeString; |
| function GetPassword : UnicodeString; |
| function GetUrlPath : UnicodeString; |
| function GetExtraInfo : UnicodeString; |
| |
| // url parts setter |
| procedure SetScheme( const value : UnicodeString); |
| procedure SetHostName ( const value : UnicodeString); |
| procedure SetPort( const value : INTERNET_PORT); |
| procedure SetUserName( const value : UnicodeString); |
| procedure SetPassword( const value : UnicodeString); |
| procedure SetUrlPath( const value : UnicodeString); |
| procedure SetExtraInfo( const value : UnicodeString); |
| |
| // url as a whole |
| function BuildUrl : UnicodeString; |
| procedure CrackUrl( const value : UnicodeString); |
| |
| public |
| constructor Create( const aUri : UnicodeString); |
| destructor Destroy; override; |
| end; |
| |
| |
| WINHTTP_PROXY_INFO_Helper = record helper for WINHTTP_PROXY_INFO |
| procedure Initialize; |
| procedure FreeAllocatedResources; |
| end; |
| |
| |
| WINHTTP_CURRENT_USER_IE_PROXY_CONFIG_Helper = record helper for WINHTTP_CURRENT_USER_IE_PROXY_CONFIG |
| procedure Initialize; |
| procedure FreeAllocatedResources; |
| end; |
| |
| |
| EWinHTTPException = class(Exception); |
| |
| { helper functions } |
| |
| function WinHttpSysErrorMessage( const error : Cardinal): string; |
| procedure RaiseLastWinHttpError; |
| |
| |
| implementation |
| |
| const WINHTTP_DLL = 'WinHTTP.dll'; |
| |
| function WinHttpCloseHandle; stdcall; external WINHTTP_DLL; |
| function WinHttpOpen; stdcall; external WINHTTP_DLL; |
| function WinHttpConnect; stdcall; external WINHTTP_DLL; |
| function WinHttpOpenRequest; stdcall; external WINHTTP_DLL; |
| function WinHttpSendRequest; stdcall; external WINHTTP_DLL; |
| function WinHttpSetTimeouts; stdcall; external WINHTTP_DLL; |
| function WinHttpQueryOption; stdcall; external WINHTTP_DLL; |
| function WinHttpSetOption; stdcall; external WINHTTP_DLL; |
| function WinHttpAddRequestHeaders; stdcall; external WINHTTP_DLL; |
| function WinHttpGetProxyForUrl; stdcall; external WINHTTP_DLL; |
| function WinHttpGetIEProxyConfigForCurrentUser; stdcall; external WINHTTP_DLL; |
| function WinHttpWriteData; stdcall; external WINHTTP_DLL; |
| function WinHttpReceiveResponse; stdcall; external WINHTTP_DLL; |
| function WinHttpQueryHeaders; stdcall; external WINHTTP_DLL; |
| function WinHttpQueryDataAvailable; stdcall; external WINHTTP_DLL; |
| function WinHttpReadData; stdcall; external WINHTTP_DLL; |
| function WinHttpCrackUrl; stdcall; external WINHTTP_DLL; |
| function WinHttpCreateUrl; stdcall; external WINHTTP_DLL; |
| |
| |
| { helper functions } |
| |
| function WinHttpSysErrorMessage( const error : Cardinal): string; |
| const FLAGS = FORMAT_MESSAGE_ALLOCATE_BUFFER |
| or FORMAT_MESSAGE_IGNORE_INSERTS |
| or FORMAT_MESSAGE_FROM_SYSTEM |
| or FORMAT_MESSAGE_FROM_HMODULE; |
| var pBuffer : PChar; |
| nChars : Cardinal; |
| begin |
| if (error < WINHTTP_ERROR_BASE) |
| or (error > WINHTTP_ERROR_LAST) |
| then Exit( SysUtils.SysErrorMessage( error)); |
| |
| pBuffer := nil; |
| try |
| nChars := FormatMessage( FLAGS, |
| Pointer( GetModuleHandle( WINHTTP_DLL)), |
| error, |
| MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // default language |
| @pBuffer, 0, |
| nil); |
| SetString( result, pBuffer, nChars); |
| finally |
| LocalFree( NativeUInt( pBuffer)); |
| end; |
| end; |
| |
| |
| procedure RaiseLastWinHttpError; |
| var error : Cardinal; |
| sMsg : string; |
| begin |
| error := Cardinal( GetLastError); |
| if error <> NOERROR then begin |
| sMSg := IntToStr(Integer(error))+' '+WinHttpSysErrorMessage(error); |
| raise EWinHTTPException.Create( sMsg); |
| end; |
| end; |
| |
| |
| |
| { misc. record helper } |
| |
| |
| procedure GlobalFreeAndNil( var p : LPWSTR); |
| begin |
| if p <> nil then begin |
| GlobalFree( HGLOBAL( p)); |
| p := nil; |
| end; |
| end; |
| |
| |
| procedure WINHTTP_PROXY_INFO_Helper.Initialize; |
| begin |
| FillChar( Self, SizeOf(Self), 0); |
| end; |
| |
| |
| procedure WINHTTP_PROXY_INFO_Helper.FreeAllocatedResources; |
| // The caller must free the lpszProxy and lpszProxyBypass strings |
| // if they are non-NULL. Use GlobalFree to free the strings. |
| begin |
| GlobalFreeAndNil( lpszProxy); |
| GlobalFreeAndNil( lpszProxyBypass); |
| Initialize; |
| end; |
| |
| |
| procedure WINHTTP_CURRENT_USER_IE_PROXY_CONFIG_Helper.Initialize; |
| begin |
| FillChar( Self, SizeOf(Self), 0); |
| end; |
| |
| |
| procedure WINHTTP_CURRENT_USER_IE_PROXY_CONFIG_Helper.FreeAllocatedResources; |
| // The caller must free the lpszProxy, lpszProxyBypass and lpszAutoConfigUrl strings |
| // if they are non-NULL. Use GlobalFree to free the strings. |
| begin |
| GlobalFreeAndNil( lpszProxy); |
| GlobalFreeAndNil( lpszProxyBypass); |
| GlobalFreeAndNil( lpszAutoConfigUrl); |
| Initialize; |
| end; |
| |
| |
| { TWinHTTPHandleObjectImpl } |
| |
| constructor TWinHTTPHandleObjectImpl.Create( const aHandle : HINTERNET); |
| begin |
| inherited Create; |
| FHandle := aHandle; |
| |
| if FHandle = nil |
| then raise EWinHTTPException.Create('Invalid handle'); |
| end; |
| |
| |
| destructor TWinHTTPHandleObjectImpl.Destroy; |
| begin |
| try |
| if Assigned(FHandle) then begin |
| WinHttpCloseHandle(FHandle); |
| FHandle := nil; |
| end; |
| |
| finally |
| inherited Destroy; |
| end; |
| end; |
| |
| |
| function TWinHTTPHandleObjectImpl.Handle : HINTERNET; |
| begin |
| result := FHandle; |
| end; |
| |
| |
| { TWinHTTPSessionImpl } |
| |
| |
| constructor TWinHTTPSessionImpl.Create( const aAgent : UnicodeString; const aAccessType : DWORD; |
| const aProxy, aProxyBypass : UnicodeString; const aFlags : DWORD); |
| var handle : HINTERNET; |
| begin |
| handle := WinHttpOpen( PWideChar(aAgent), aAccessType, |
| PWideChar(Pointer(aProxy)), // may be nil |
| PWideChar(Pointer(aProxyBypass)), // may be nil |
| aFlags); |
| if handle = nil then RaiseLastWinHttpError; |
| inherited Create( handle); |
| end; |
| |
| |
| destructor TWinHTTPSessionImpl.Destroy; |
| begin |
| inherited Destroy; |
| // add code here |
| end; |
| |
| |
| function TWinHTTPSessionImpl.Connect( const aHostName : UnicodeString; const aPort : INTERNET_PORT) : IWinHTTPConnection; |
| begin |
| result := TWinHTTPConnectionImpl.Create( Self, aHostName, aPort); |
| end; |
| |
| |
| function TWinHTTPSessionImpl.SetTimeouts( const aResolveTimeout, aConnectTimeout, aSendTimeout, aReceiveTimeout : Int32) : Boolean; |
| begin |
| result := WinHttpSetTimeouts( FHandle, aResolveTimeout, aConnectTimeout, aSendTimeout, aReceiveTimeout); |
| end; |
| |
| |
| function TWinHTTPSessionImpl.EnableSecureProtocols( const aFlagSet : DWORD) : Boolean; |
| var dwSize : DWORD; |
| begin |
| dwSize := SizeOf(aFlagSet); |
| result := WinHttpSetOption( Handle, WINHTTP_OPTION_SECURE_PROTOCOLS, @aFlagset, dwSize); |
| end; |
| |
| |
| { TWinHTTPConnectionImpl } |
| |
| constructor TWinHTTPConnectionImpl.Create( const aSession : IWinHTTPSession; const aHostName : UnicodeString; const aPort : INTERNET_PORT); |
| var handle : HINTERNET; |
| begin |
| FSession := aSession; |
| handle := WinHttpConnect( FSession.Handle, PWideChar(aHostName), aPort, 0); |
| if handle = nil then RaiseLastWinHttpError; |
| inherited Create( handle); |
| end; |
| |
| |
| destructor TWinHTTPConnectionImpl.Destroy; |
| begin |
| inherited Destroy; |
| FSession := nil; |
| end; |
| |
| |
| function TWinHTTPConnectionImpl.Session : IWinHTTPSession; |
| begin |
| result := FSession; |
| end; |
| |
| |
| function TWinHTTPConnectionImpl.OpenRequest( const secure : Boolean; const aVerb, aObjName, aAcceptTypes : UnicodeString) : IWinHTTPRequest; |
| var dwFlags : DWORD; |
| begin |
| dwFlags := WINHTTP_THRIFT_DEFAULTS; |
| if secure |
| then dwFlags := dwFlags or WINHTTP_FLAG_SECURE |
| else dwFlags := dwFlags and not WINHTTP_FLAG_SECURE; |
| |
| result := TWinHTTPRequestImpl.Create( Self, aVerb, aObjName, '', '', aAcceptTypes, dwFlags); |
| end; |
| |
| |
| { TWinHTTPRequestImpl } |
| |
| constructor TWinHTTPRequestImpl.Create( const aConnection : IWinHTTPConnection; |
| const aVerb, aObjName, aVersion, aReferrer : UnicodeString; |
| const aAcceptTypes : UnicodeString; |
| const aFlags : DWORD |
| ); |
| var handle : HINTERNET; |
| accept : array[0..1] of PWideChar; |
| begin |
| FConnection := aConnection; |
| |
| accept[0] := PWideChar(aAcceptTypes); |
| accept[1] := nil; |
| |
| handle := WinHttpOpenRequest( FConnection.Handle, |
| PWideChar(UpperCase(aVerb)), |
| PWideChar(aObjName), |
| PWideChar(aVersion), |
| PWideChar(aReferrer), |
| @accept, |
| aFlags); |
| if handle = nil then RaiseLastWinHttpError; |
| inherited Create( handle); |
| end; |
| |
| |
| destructor TWinHTTPRequestImpl.Destroy; |
| begin |
| inherited Destroy; |
| FConnection := nil; |
| end; |
| |
| |
| function TWinHTTPRequestImpl.Connection : IWinHTTPConnection; |
| begin |
| result := FConnection; |
| end; |
| |
| |
| function TWinHTTPRequestImpl.SetTimeouts( const aResolveTimeout, aConnectTimeout, aSendTimeout, aReceiveTimeout : Int32) : Boolean; |
| begin |
| result := WinHttpSetTimeouts( FHandle, aResolveTimeout, aConnectTimeout, aSendTimeout, aReceiveTimeout); |
| end; |
| |
| |
| function TWinHTTPRequestImpl.AddRequestHeader( const aHeader : string; const addflag : DWORD) : Boolean; |
| begin |
| result := WinHttpAddRequestHeaders( FHandle, PWideChar(aHeader), DWORD(-1), addflag); |
| end; |
| |
| |
| procedure TWinHTTPRequestImpl.TryAutoProxy( const aUrl : string); |
| // From MSDN: |
| // AutoProxy support is not fully integrated into the HTTP stack in WinHTTP. |
| // Before sending a request, the application must call WinHttpGetProxyForUrl |
| // to obtain the name of a proxy server and then call WinHttpSetOption using |
| // WINHTTP_OPTION_PROXY to set the proxy configuration on the WinHTTP request |
| // handle created by WinHttpOpenRequest. |
| // See https://docs.microsoft.com/en-us/windows/desktop/winhttp/winhttp-autoproxy-api |
| var |
| options : WINHTTP_AUTOPROXY_OPTIONS; |
| proxy : WINHTTP_PROXY_INFO; |
| ieProxy : WINHTTP_CURRENT_USER_IE_PROXY_CONFIG; |
| dwSize : DWORD; |
| begin |
| // try AutoProxy via PAC first |
| proxy.Initialize; |
| try |
| FillChar( options, SizeOf(options), 0); |
| options.dwFlags := WINHTTP_AUTOPROXY_AUTO_DETECT; |
| options.dwAutoDetectFlags := WINHTTP_AUTO_DETECT_TYPE_DHCP or WINHTTP_AUTO_DETECT_TYPE_DNS_A; |
| options.fAutoLogonIfChallenged := TRUE; |
| if WinHttpGetProxyForUrl( FConnection.Session.Handle, PChar(aUrl), options, proxy) then begin |
| dwSize := SizeOf(proxy); |
| WinHttpSetOption( Handle, WINHTTP_OPTION_PROXY, @proxy, dwSize); |
| Exit; |
| end; |
| |
| finally |
| proxy.FreeAllocatedResources; |
| end; |
| |
| // Use IE settings as a fallback, useful in client (i.e. non-server) environments |
| ieProxy.Initialize; |
| try |
| if WinHttpGetIEProxyConfigForCurrentUser( ieProxy) |
| then begin |
| |
| // lpszAutoConfigUrl = "Use automatic proxy configuration" |
| if ieProxy.lpszAutoConfigUrl <> nil then begin |
| options.lpszAutoConfigUrl := ieProxy.lpszAutoConfigUrl; |
| options.dwFlags := options.dwFlags or WINHTTP_AUTOPROXY_CONFIG_URL; |
| |
| proxy.Initialize; |
| try |
| if WinHttpGetProxyForUrl( FConnection.Session.Handle, PChar(aUrl), options, proxy) then begin |
| dwSize := SizeOf(proxy); |
| WinHttpSetOption( Handle, WINHTTP_OPTION_PROXY, @proxy, dwSize); |
| Exit; |
| end; |
| finally |
| proxy.FreeAllocatedResources; |
| end; |
| end; |
| |
| // lpszProxy = "use a proxy server" |
| if ieProxy.lpszProxy <> nil then begin |
| proxy.Initialize; |
| try |
| proxy.dwAccessType := WINHTTP_ACCESS_TYPE_NAMED_PROXY; |
| proxy.lpszProxy := ieProxy.lpszProxy; |
| proxy.lpszProxyBypass := ieProxy.lpszProxyBypass; |
| dwSize := SizeOf(proxy); |
| WinHttpSetOption( Handle, WINHTTP_OPTION_PROXY, @proxy, dwSize); |
| Exit; |
| finally |
| proxy.Initialize; // not FreeAllocatedResources, we only hold pointer copies! |
| end; |
| end; |
| |
| end; |
| |
| finally |
| ieProxy.FreeAllocatedResources; |
| end; |
| end; |
| |
| |
| procedure TWinHTTPRequestImpl.EnableAutomaticContentDecompression( const aEnable : Boolean); |
| // Enable automatic gzip,deflate decompression on systems that support this option |
| // From the docs: WinHTTP will automatically set an appropriate Accept-Encoding header, |
| // overriding any value supplied by the caller -> we don't have to do this |
| // Available on Win 8.1 or higher |
| var value : DWORD; |
| begin |
| if aEnable |
| then value := WINHTTP_DECOMPRESSION_FLAG_ALL |
| else value := 0; |
| |
| // ignore returned value, the option is not supported with older WinHTTP versions |
| WinHttpSetOption( Handle, WINHTTP_OPTION_DECOMPRESSION, @value, SizeOf(DWORD)); |
| end; |
| |
| |
| function TWinHTTPRequestImpl.SendRequest( const pBuf : Pointer; const dwBytes, dwExtra : DWORD) : Boolean; |
| begin |
| result := WinHttpSendRequest( FHandle, |
| WINHTTP_NO_ADDITIONAL_HEADERS, 0, |
| pBuf, dwBytes, // number of bytes in pBuf |
| dwBytes + dwExtra, // becomes the Content-Length |
| nil); // context for async operations |
| end; |
| |
| |
| function TWinHTTPRequestImpl.WriteExtraData( const pBuf : Pointer; const dwBytes : DWORD) : DWORD; |
| begin |
| if not WinHttpWriteData( FHandle, pBuf, dwBytes, result) |
| then result := 0; |
| end; |
| |
| |
| function TWinHTTPRequestImpl.FlushAndReceiveResponse : Boolean; |
| begin |
| result := WinHttpReceiveResponse( FHandle, nil); |
| end; |
| |
| |
| function TWinHTTPRequestImpl.ReadData( const dwRead : DWORD) : TBytes; |
| var dwAvailable, dwReceived : DWORD; |
| begin |
| if WinHttpQueryDataAvailable( FHandle, dwAvailable) |
| then dwAvailable := Min( dwRead, dwAvailable) |
| else dwAvailable := 0; |
| |
| SetLength( result, dwAvailable); |
| if dwAvailable = 0 then Exit; |
| |
| if WinHttpReadData( FHandle, @result[0], Length(result), dwReceived) |
| then SetLength( result, dwReceived) |
| else SetLength( result, 0); |
| end; |
| |
| |
| function TWinHTTPRequestImpl.ReadData( const pBuf : Pointer; const dwRead : DWORD) : DWORD; |
| var dwAvailable : DWORD; |
| begin |
| if WinHttpQueryDataAvailable( FHandle, dwAvailable) |
| then dwAvailable := Min( dwRead, dwAvailable) |
| else dwAvailable := 0; |
| |
| if (dwAvailable = 0) |
| or not WinHttpReadData( FHandle, pBuf, dwAvailable, result) |
| then result := 0; |
| end; |
| |
| |
| function TWinHTTPRequestImpl.QueryDataAvailable : DWORD; |
| begin |
| if not WinHttpQueryDataAvailable( FHandle, result) |
| then result := 0; |
| end; |
| |
| |
| function TWinHTTPRequestImpl.QueryTotalResponseSize( out dwSize : DWORD) : Boolean; |
| var dwBytes, dwError, dwIndex : DWORD; |
| bytes : array[0..32-1] of Byte; |
| begin |
| dwBytes := SizeOf( result); |
| dwIndex := DWORD( WINHTTP_NO_HEADER_INDEX); |
| result := WinHttpQueryHeaders( FHandle, |
| WINHTTP_QUERY_CONTENT_LENGTH or WINHTTP_QUERY_FLAG_NUMBER, |
| WINHTTP_HEADER_NAME_BY_INDEX, |
| @dwSize, dwBytes, |
| dwIndex); |
| if result then Exit; |
| dwError := GetLastError; |
| |
| // Hack: WinHttpQueryHeaders() sometimes returns error 122 even if the buffer is large enough |
| // According to the docs, WINHTTP_QUERY_FLAG_NUMBER always returns a 32 bit number (which it does!) |
| // but for some strange reason since win 10 build 18636.815 passing a 4 bytes buffer is not enough anymore |
| if dwError = ERROR_INSUFFICIENT_BUFFER then begin |
| dwBytes := sizeof(bytes); |
| FillChar( bytes[0], dwBytes, 0); |
| result := WinHttpQueryHeaders( FHandle, |
| WINHTTP_QUERY_CONTENT_LENGTH or WINHTTP_QUERY_FLAG_NUMBER, |
| WINHTTP_HEADER_NAME_BY_INDEX, |
| @bytes[0], dwBytes, |
| dwIndex); |
| if result then begin |
| ASSERT( dwBytes = SizeOf(dwSize)); // result is still a DWORD |
| Move( bytes[0], dwSize, SizeOf(dwSize)); // copy over result data |
| Exit; |
| end; |
| end; |
| |
| // header may just not be there |
| dwSize := MAXINT; // we don't know, just return something useful |
| ASSERT( dwError = ERROR_WINHTTP_HEADER_NOT_FOUND); // anything else would be an real error |
| end; |
| |
| |
| function TWinHTTPRequestImpl.QueryHttpStatus( out dwStatusCode : DWORD; out sStatusText : string) : Boolean; |
| var dwBytes, dwError, dwIndex : DWORD; |
| begin |
| // HTTP status code |
| dwIndex := DWORD( WINHTTP_NO_HEADER_INDEX); |
| dwBytes := SizeOf(dwStatusCode); |
| result := WinHttpQueryHeaders( FHandle, |
| WINHTTP_QUERY_STATUS_CODE or WINHTTP_QUERY_FLAG_NUMBER, |
| WINHTTP_HEADER_NAME_BY_INDEX, |
| @dwStatusCode, dwBytes, |
| dwIndex); |
| if not result then begin |
| dwStatusCode := 0; // no data |
| dwError := GetLastError; |
| if dwError <> ERROR_WINHTTP_HEADER_NOT_FOUND then ASSERT(FALSE); // anything else would be an real error |
| end; |
| |
| // HTTP status text |
| dwIndex := DWORD( WINHTTP_NO_HEADER_INDEX); |
| dwBytes := 0; |
| result := WinHttpQueryHeaders( FHandle, |
| WINHTTP_QUERY_STATUS_TEXT, |
| WINHTTP_HEADER_NAME_BY_INDEX, |
| WINHTTP_NO_OUTPUT_BUFFER, // we need to determine the size first |
| dwBytes, // will receive the required buffer size |
| dwIndex); |
| if dwBytes > 0 then begin // allocate buffer and call again to get the value |
| SetLength( sStatusText, dwBytes div SizeOf(Char)); |
| dwBytes := Length(sStatusText) * SizeOf(Char); |
| result := WinHttpQueryHeaders( FHandle, |
| WINHTTP_QUERY_STATUS_TEXT, |
| WINHTTP_HEADER_NAME_BY_INDEX, |
| @sStatusText[1], dwBytes, |
| dwIndex); |
| end; |
| if result |
| then SetLength( sStatusText, StrLen(PChar(sStatusText))) // get rid of any terminating #0 chars |
| else begin |
| sStatusText := ''; // no data |
| dwError := GetLastError; |
| if dwError <> ERROR_WINHTTP_HEADER_NOT_FOUND then ASSERT(FALSE); // anything else would be an real error |
| end; |
| |
| // do we have at least something? |
| result := (dwStatusCode <> 0) or (sStatusText <> ''); |
| end; |
| |
| |
| { TWinHTTPUrlImpl } |
| |
| constructor TWinHTTPUrlImpl.Create(const aUri: UnicodeString); |
| begin |
| inherited Create; |
| CrackUrl( aUri) |
| end; |
| |
| |
| destructor TWinHTTPUrlImpl.Destroy; |
| begin |
| inherited Destroy; |
| end; |
| |
| |
| procedure TWinHTTPUrlImpl.CrackURL( const value : UnicodeString); |
| const FLAGS = 0; // no special operations, leave components as-is |
| var components : URL_COMPONENTS; |
| begin |
| FillChar(components, SizeOf(components), 0); |
| components.dwStructSize := SizeOf(components); |
| |
| if value <> '' then begin |
| { For the WinHttpCrackUrl function, [...] if the pointer member is NULL but the |
| length member is not zero, both the pointer and length members are returned. } |
| components.dwSchemeLength := DWORD(-1); |
| components.dwHostNameLength := DWORD(-1); |
| components.dwUserNameLength := DWORD(-1); |
| components.dwPasswordLength := DWORD(-1); |
| components.dwUrlPathLength := DWORD(-1); |
| components.dwExtraInfoLength := DWORD(-1); |
| |
| WinHttpCrackUrl( PWideChar(value), Length(value), FLAGS, components); |
| end; |
| |
| FNumScheme := components.nScheme; |
| FPort := components.nPort; |
| SetString( FScheme, components.lpszScheme, components.dwSchemeLength); |
| SetString( FHostName, components.lpszHostName, components.dwHostNameLength); |
| SetString( FUserName, components.lpszUserName, components.dwUserNameLength); |
| SetString( FPassword, components.lpszPassword, components.dwPasswordLength); |
| SetString( FUrlPath, components.lpszUrlPath, components.dwUrlPathLength); |
| SetString( FExtraInfo, components.lpszExtraInfo, components.dwExtraInfoLength); |
| end; |
| |
| |
| function TWinHTTPUrlImpl.BuildUrl : UnicodeString; |
| const FLAGS = 0; // no special operations, leave components as-is |
| var components : URL_COMPONENTS; |
| dwChars : DWORD; |
| begin |
| FillChar(components, SizeOf(components), 0); |
| components.dwStructSize := SizeOf(components); |
| components.lpszScheme := PWideChar(FScheme); |
| components.dwSchemeLength := Length(FScheme); |
| components.lpszHostName := PWideChar(FHostName); |
| components.dwHostNameLength := Length(FHostName); |
| components.nPort := FPort; |
| components.lpszUserName := PWideChar(FUserName); |
| components.dwUserNameLength := Length(FUserName); |
| components.lpszPassword := PWideChar(FPassword); |
| components.dwPasswordLength := Length(FPassword); |
| components.lpszUrlPath := PWideChar(FUrlPath); |
| components.dwUrlPathLength := Length(FUrlPath); |
| components.lpszExtraInfo := PWideChar(FExtraInfo); |
| components.dwExtraInfoLength := Length(FExtraInfo); |
| |
| WinHttpCreateUrl( components, FLAGS, nil, dwChars); |
| if dwChars = 0 |
| then result := '' |
| else begin |
| SetLength( result, dwChars + 1); |
| WinHttpCreateUrl( components, FLAGS, @result[1], dwChars); |
| SetLength( result, dwChars); // cut off terminating #0 |
| end; |
| end; |
| |
| |
| function TWinHTTPUrlImpl.GetExtraInfo: UnicodeString; |
| begin |
| result := FExtraInfo; |
| end; |
| |
| function TWinHTTPUrlImpl.GetHostName: UnicodeString; |
| begin |
| result := FHostName; |
| end; |
| |
| function TWinHTTPUrlImpl.GetNumScheme: INTERNET_SCHEME; |
| begin |
| result := FNumScheme; |
| end; |
| |
| function TWinHTTPUrlImpl.GetPassword: UnicodeString; |
| begin |
| result := FPassword; |
| end; |
| |
| function TWinHTTPUrlImpl.GetPort: INTERNET_PORT; |
| begin |
| result := FPort; |
| end; |
| |
| function TWinHTTPUrlImpl.GetScheme: UnicodeString; |
| begin |
| result := FScheme; |
| end; |
| |
| function TWinHTTPUrlImpl.GetUrlPath: UnicodeString; |
| begin |
| result := FUrlPath; |
| end; |
| |
| function TWinHTTPUrlImpl.GetUserName: UnicodeString; |
| begin |
| result := FUserName; |
| end; |
| |
| procedure TWinHTTPUrlImpl.SetExtraInfo(const value: UnicodeString); |
| begin |
| FExtraInfo := value; |
| end; |
| |
| procedure TWinHTTPUrlImpl.SetHostName(const value: UnicodeString); |
| begin |
| FHostName := value; |
| end; |
| |
| procedure TWinHTTPUrlImpl.SetPassword(const value: UnicodeString); |
| begin |
| FPassword := value; |
| end; |
| |
| procedure TWinHTTPUrlImpl.SetPort(const value: INTERNET_PORT); |
| begin |
| FPort := value; |
| end; |
| |
| procedure TWinHTTPUrlImpl.SetScheme(const value: UnicodeString); |
| begin |
| FScheme := value; |
| end; |
| |
| procedure TWinHTTPUrlImpl.SetUrlPath(const value: UnicodeString); |
| begin |
| FUrlPath := value; |
| end; |
| |
| procedure TWinHTTPUrlImpl.SetUserName(const value: UnicodeString); |
| begin |
| FUserName := value; |
| end; |
| |
| |
| end. |
| |
| |