+++ /dev/null
-(*
- * 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
- // WinHttpOpen dwAccessType values
- WINHTTP_ACCESS_TYPE_DEFAULT_PROXY = 0;
- WINHTTP_ACCESS_TYPE_NO_PROXY = 1;
- WINHTTP_ACCESS_TYPE_NAMED_PROXY = 3;
-
- // flags for WinHttpOpen():
- WINHTTP_FLAG_ASYNC = $10000000; // want async session, requires WinHttpSetStatusCallback() usage
-
- // ports
- INTERNET_DEFAULT_PORT = 0; // use the protocol-specific default (80 or 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_BYPASS_PROXY_CACHE = $00000100; // add "pragma: no-cache" request header
- WINHTTP_FLAG_REFRESH = WINHTTP_FLAG_BYPASS_PROXY_CACHE;
- WINHTTP_FLAG_ESCAPE_DISABLE = $00000040; // disable escaping
- WINHTTP_FLAG_ESCAPE_DISABLE_QUERY = $00000080; // if escaping enabled escape path part, but do not escape query
-
- // flags for WinHttpSendRequest():
- WINHTTP_NO_ADDITIONAL_HEADERS = nil;
- WINHTTP_NO_REQUEST_DATA = 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 usrls whick have username/pwd sections
-
- INTERNET_SCHEME_HTTP = INTERNET_SCHEME(1);
- INTERNET_SCHEME_HTTPS = INTERNET_SCHEME(2);
-
- WINHTTP_NO_CLIENT_CERT_CONTEXT = nil;
-
- // 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_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;
- // options for newer WinHTTP versions
- WINHTTP_OPTION_DECOMPRESSION = 118;
- //
- WINHTTP_FIRST_OPTION = WINHTTP_OPTION_CALLBACK;
- //WINHTTP_LAST_OPTION = WINHTTP_OPTION_SERVER_CBT;
-
- 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;
-
- // 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;
-
- // 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;
-
- // 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_RUN_INPROCESS = $00010000;
- WINHTTP_AUTOPROXY_RUN_OUTPROCESS_ONLY = $00020000;
-
- // 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_CLIENT_AUTH_CERT_NEEDED = WINHTTP_ERROR_BASE + 44;
- 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_AUTO_PROXY_SERVICE_ERROR = WINHTTP_ERROR_BASE + 178;
- ERROR_WINHTTP_BAD_AUTO_PROXY_SCRIPT = WINHTTP_ERROR_BASE + 166;
- ERROR_WINHTTP_UNABLE_TO_DOWNLOAD_SCRIPT = WINHTTP_ERROR_BASE + 167;
- ERROR_WINHTTP_NOT_INITIALIZED = WINHTTP_ERROR_BASE + 172;
- ERROR_WINHTTP_SECURE_FAILURE = WINHTTP_ERROR_BASE + 175;
-
- // 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;
-
- WINHTTP_ERROR_LAST = WINHTTP_ERROR_BASE + 186;
-
-
-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
- ['{F65952F2-2F3B-47DC-B524-F1694E6D2AD7}']
- 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;
- 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;
-
- 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;
-
-
-{ 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;
-
-
-initialization
- OutputDebugString( PChar( SysErrorMessage( 12002)));
-
-end.
-
-
projects / ceph.git / blobdiff