1 /**
2  * Windows API header module
3  *
4  * Translated from Windows SDK Headers
5  *
6  * License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)
7  * Source: $(DRUNTIMESRC core/sys/windows/_winhttp.d)
8  */
9 /// Automatically imported and edited from the druntime module
10 /// core.sys.windows.winhttp for the auto-generated win32 package.
11 module win32.winhttp;
12 //version (Windows):
13 @system:
14 version (Win32_UseLib) pragma(lib, "winhttp");
15 // FIXME: Grouping of constants. Windows SDK doesn't make this entirely clear
16 // FIXME: Verify WINHTTP_STATUS_CALLBACK function declaration works correctly
17 
18 import win32.w32api;
19 import win32.winbase;
20 import win32.windef;
21 import win32.winsock2;  // Selective Imports BUG (: SOCKADDR_STORAGE;)
22 
23 alias HINTERNET = void*;
24 alias LPHINTERNET = HINTERNET*;
25 alias INTERNET_PORT = WORD;
26 alias LPINTERNET_PORT = INTERNET_PORT*;
27 alias INTERNET_SCHEME = int;
28 alias LPINTERNET_SCHEME = INTERNET_SCHEME*;
29 
30 // Protocol 'Manifests'
31 enum : DWORD {
32     INTERNET_DEFAULT_PORT       = 0,
33     INTERNET_DEFAULT_HTTP_PORT  = 80,
34     INTERNET_DEFAULT_HTTPS_PORT = 443
35 }
36 
37 // WinHttpOpen() Flags:
38 enum DWORD WINHTTP_FLAG_ASYNC = 0x10000000;
39 
40 // WinHttpOpenRequest() Flags:
41 enum : DWORD {
42     WINHTTP_FLAG_SECURE               = 0x00800000,
43     WINHTTP_FLAG_ESCAPE_PERCENT       = 0x00000004,
44     WINHTTP_FLAG_NULL_CODEPAGE        = 0x00000008,
45     WINHTTP_FLAG_BYPASS_PROXY_CACHE   = 0x00000100,
46     WINHTTP_FLAG_REFRESH              = WINHTTP_FLAG_BYPASS_PROXY_CACHE,
47     WINHTTP_FLAG_ESCAPE_DISABLE       = 0x00000040,
48     WINHTTP_FLAG_ESCAPE_DISABLE_QUERY = 0x00000080,
49 
50     SECURITY_FLAG_IGNORE_UNKNOWN_CA        = 0x00000100,
51     SECURITY_FLAG_IGNORE_CERT_DATE_INVALID = 0x00002000,
52     SECURITY_FLAG_IGNORE_CERT_CN_INVALID   = 0x00001000,
53     SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE  = 0x00000200
54 }
55 
56 struct WINHTTP_ASYNC_RESULT {
57     DWORD_PTR dwResult;
58     DWORD dwError;
59 }
60 alias LPWINHTTP_ASYNC_RESULT = WINHTTP_ASYNC_RESULT*;
61 
62 struct HTTP_VERSION_INFO {
63     DWORD dwMajorVersion;
64     DWORD dwMinorVersion;
65 }
66 alias LPHTTP_VERSION_INFO = HTTP_VERSION_INFO*;
67 
68 // URL Scheme
69 enum : DWORD {
70     INTERNET_SCHEME_HTTP  = 1,
71     INTERNET_SCHEME_HTTPS = 2,
72     INTERNET_SCHEME_FTP   = 3,
73     INTERNET_SCHEME_SOCKS = 4
74 }
75 
76 struct URL_COMPONENTS {
77     DWORD   dwStructSize;
78     LPWSTR  lpszScheme;
79     DWORD   dwSchemeLength;
80     INTERNET_SCHEME nScheme;
81     LPWSTR  lpszHostName;
82     DWORD   dwHostNameLength;
83     INTERNET_PORT nPort;
84     LPWSTR  lpszUserName;
85     DWORD   dwUserNameLength;
86     LPWSTR  lpszPassword;
87     DWORD   dwPasswordLength;
88     LPWSTR  lpszUrlPath;
89     DWORD   dwUrlPathLength;
90     LPWSTR  lpszExtraInfo;
91     DWORD   dwExtraInfoLength;
92 }
93 alias LPURL_COMPONENTS = URL_COMPONENTS*;
94 alias URL_COMPONENTSW = URL_COMPONENTS;
95 alias LPURL_COMPONENTSW = URL_COMPONENTS*;
96 
97 struct WINHTTP_PROXY_INFO {
98     DWORD  dwAccessType;
99     LPWSTR lpszProxy;
100     LPWSTR lpszProxyBypass;
101 }
102 alias LPWINHTTP_PROXY_INFO = WINHTTP_PROXY_INFO*;
103 alias WINHTTP_PROXY_INFOW = WINHTTP_PROXY_INFO;
104 alias LPWINHTTP_PROXY_INFOW = WINHTTP_PROXY_INFO*;
105 
106 struct WINHTTP_AUTOPROXY_OPTIONS {
107     DWORD   dwFlags;
108     DWORD   dwAutoDetectFlags;
109     LPCWSTR lpszAutoConfigUrl;
110     LPVOID  lpvReserved;
111     DWORD   dwReserved;
112     BOOL    fAutoLogonIfChallenged;
113 }
114 
115 enum : DWORD {
116     WINHTTP_AUTOPROXY_AUTO_DETECT           = 0x00000001,
117     WINHTTP_AUTOPROXY_CONFIG_URL            = 0x00000002,
118     WINHTTP_AUTOPROXY_HOST_KEEPCASE         = 0x00000004,
119     WINHTTP_AUTOPROXY_HOST_LOWERCASE        = 0x00000008,
120     WINHTTP_AUTOPROXY_RUN_INPROCESS         = 0x00010000,
121     WINHTTP_AUTOPROXY_RUN_OUTPROCESS_ONLY   = 0x00020000,
122     WINHTTP_AUTOPROXY_NO_DIRECTACCESS       = 0x00040000,
123     WINHTTP_AUTOPROXY_NO_CACHE_CLIENT       = 0x00080000,
124     WINHTTP_AUTOPROXY_NO_CACHE_SVC          = 0x00100000,
125 
126     WINHTTP_AUTOPROXY_SORT_RESULTS          = 0x00400000
127 }
128 
129 // dwAutoDetectFlags
130 enum : DWORD {
131     WINHTTP_AUTO_DETECT_TYPE_DHCP           = 0x00000001,
132     WINHTTP_AUTO_DETECT_TYPE_DNS_A          = 0x00000002
133 }
134 
135 struct WINHTTP_CERTIFICATE_INFO {
136     FILETIME ftExpiry;
137     FILETIME ftStart;
138     LPWSTR lpszSubjectInfo;
139     LPWSTR lpszIssuerInfo;
140     LPWSTR lpszProtocolName;
141     LPWSTR lpszSignatureAlgName;
142     LPWSTR lpszEncryptionAlgName;
143     DWORD dwKeySize;
144 }
145 
146 // This structure is only defined #if _WS2DEF_ defined (from <ws2def.h>) - per Windows SDK
147 align(4)
148 struct WINHTTP_CONNECTION_INFO {
149 align(4):
150     DWORD cbSize;
151     version (Win64)
152         DWORD _padding; // cheap trick without the alignment switch over this file
153     SOCKADDR_STORAGE LocalAddress;
154     SOCKADDR_STORAGE RemoteAddress;
155 }
156 
157 // WinHttpTimeFromSystemTime
158 enum DWORD WINHTTP_TIME_FORMAT_BUFSIZE  = 62;
159 
160 // CrackUrl, CombineUrl
161 enum : DWORD {
162     ICU_NO_ENCODE           = 0x20000000,
163     ICU_DECODE              = 0x10000000,
164     ICU_NO_META             = 0x08000000,
165     ICU_ENCODE_SPACES_ONLY  = 0x04000000,
166     ICU_BROWSER_MODE        = 0x02000000,
167     ICU_ENCODE_PERCENT      = 0x00001000
168 }
169 // WinHttpCrackUrl, WinHttpCreateUrl
170 enum : DWORD {
171     ICU_ESCAPE            = 0x80000000,
172     ICU_ESCAPE_AUTHORITY  = 0x00002000,
173     ICU_REJECT_USERPWD    = 0x00004000
174 }
175 enum : DWORD {
176     WINHTTP_ACCESS_TYPE_DEFAULT_PROXY             = 0,
177     WINHTTP_ACCESS_TYPE_NO_PROXY                  = 1,
178     WINHTTP_ACCESS_TYPE_NAMED_PROXY               = 3,
179     WINHTTP_ACCESS_TYPE_AUTOMATIC_PROXY           = 4
180 }
181 // WinHttpOpen 'prettifiers'
182 enum LPCWSTR WINHTTP_NO_PROXY_NAME         = null;
183 enum LPCWSTR WINHTTP_NO_PROXY_BYPASS       = null;
184 
185 enum LPVOID WINHTTP_NO_CLIENT_CERT_CONTEXT = null;
186 
187 // WinHttp{Query|Set}Option
188 enum : DWORD {
189     WINHTTP_FIRST_OPTION                         = WINHTTP_OPTION_CALLBACK,
190 
191     WINHTTP_OPTION_CALLBACK                      = 1,
192     WINHTTP_OPTION_RESOLVE_TIMEOUT               = 2,
193     WINHTTP_OPTION_CONNECT_TIMEOUT               = 3,
194     WINHTTP_OPTION_CONNECT_RETRIES               = 4,
195     WINHTTP_OPTION_SEND_TIMEOUT                  = 5,
196     WINHTTP_OPTION_RECEIVE_TIMEOUT               = 6,
197     WINHTTP_OPTION_RECEIVE_RESPONSE_TIMEOUT      = 7,
198     WINHTTP_OPTION_HANDLE_TYPE                   = 9,
199     WINHTTP_OPTION_READ_BUFFER_SIZE             = 12,
200     WINHTTP_OPTION_WRITE_BUFFER_SIZE            = 13,
201     WINHTTP_OPTION_PARENT_HANDLE                = 21,
202     WINHTTP_OPTION_EXTENDED_ERROR               = 24,
203     WINHTTP_OPTION_SECURITY_FLAGS               = 31,
204     WINHTTP_OPTION_SECURITY_CERTIFICATE_STRUCT  = 32,
205     WINHTTP_OPTION_URL                          = 34,
206     WINHTTP_OPTION_SECURITY_KEY_BITNESS         = 36,
207     WINHTTP_OPTION_PROXY                        = 38,
208     WINHTTP_OPTION_PROXY_RESULT_ENTRY           = 39,
209 
210     WINHTTP_OPTION_USER_AGENT                   = 41,
211     WINHTTP_OPTION_CONTEXT_VALUE                = 45,
212     WINHTTP_OPTION_CLIENT_CERT_CONTEXT          = 47,
213     WINHTTP_OPTION_REQUEST_PRIORITY             = 58,
214     WINHTTP_OPTION_HTTP_VERSION                 = 59,
215     WINHTTP_OPTION_DISABLE_FEATURE              = 63,
216 
217     WINHTTP_OPTION_CODEPAGE                     = 68,
218     WINHTTP_OPTION_MAX_CONNS_PER_SERVER         = 73,
219     WINHTTP_OPTION_MAX_CONNS_PER_1_0_SERVER     = 74,
220     WINHTTP_OPTION_AUTOLOGON_POLICY             = 77,
221     WINHTTP_OPTION_SERVER_CERT_CONTEXT          = 78,
222     WINHTTP_OPTION_ENABLE_FEATURE               = 79,
223     WINHTTP_OPTION_WORKER_THREAD_COUNT          = 80,
224     WINHTTP_OPTION_PASSPORT_COBRANDING_TEXT     = 81,
225     WINHTTP_OPTION_PASSPORT_COBRANDING_URL      = 82,
226     WINHTTP_OPTION_CONFIGURE_PASSPORT_AUTH      = 83,
227     WINHTTP_OPTION_SECURE_PROTOCOLS             = 84,
228     WINHTTP_OPTION_ENABLETRACING                = 85,
229     WINHTTP_OPTION_PASSPORT_SIGN_OUT            = 86,
230     WINHTTP_OPTION_PASSPORT_RETURN_URL          = 87,
231     WINHTTP_OPTION_REDIRECT_POLICY              = 88,
232     WINHTTP_OPTION_MAX_HTTP_AUTOMATIC_REDIRECTS = 89,
233     WINHTTP_OPTION_MAX_HTTP_STATUS_CONTINUE     = 90,
234     WINHTTP_OPTION_MAX_RESPONSE_HEADER_SIZE     = 91,
235     WINHTTP_OPTION_MAX_RESPONSE_DRAIN_SIZE      = 92,
236     WINHTTP_OPTION_CONNECTION_INFO              = 93,
237     WINHTTP_OPTION_CLIENT_CERT_ISSUER_LIST      = 94,
238     WINHTTP_OPTION_SPN                          = 96,
239 
240     WINHTTP_OPTION_GLOBAL_PROXY_CREDS           = 97,
241     WINHTTP_OPTION_GLOBAL_SERVER_CREDS          = 98,
242 
243     WINHTTP_OPTION_UNLOAD_NOTIFY_EVENT            = 99,
244     WINHTTP_OPTION_REJECT_USERPWD_IN_URL          = 100,
245     WINHTTP_OPTION_USE_GLOBAL_SERVER_CREDENTIALS  = 101,
246 
247     WINHTTP_OPTION_RECEIVE_PROXY_CONNECT_RESPONSE = 103,
248     WINHTTP_OPTION_IS_PROXY_CONNECT_RESPONSE      = 104,
249 
250     WINHTTP_OPTION_SERVER_SPN_USED              = 106,
251     WINHTTP_OPTION_PROXY_SPN_USED               = 107,
252 
253     WINHTTP_OPTION_SERVER_CBT                   = 108,
254 
255     WINHTTP_OPTION_UNSAFE_HEADER_PARSING          = 110,
256     WINHTTP_OPTION_ASSURED_NON_BLOCKING_CALLBACKS = 111,
257 
258     WINHTTP_OPTION_UPGRADE_TO_WEB_SOCKET          = 114,
259     WINHTTP_OPTION_WEB_SOCKET_CLOSE_TIMEOUT       = 115,
260     WINHTTP_OPTION_WEB_SOCKET_KEEPALIVE_INTERVAL  = 116,
261 
262     WINHTTP_OPTION_DECOMPRESSION                  = 118,
263 
264     WINHTTP_OPTION_WEB_SOCKET_RECEIVE_BUFFER_SIZE = 122,
265     WINHTTP_OPTION_WEB_SOCKET_SEND_BUFFER_SIZE    = 123,
266 
267     //WINHTTP_LAST_OPTION => Moved outside of enum - static if () constraints within enums
268 
269     WINHTTP_OPTION_USERNAME                      = 0x1000,
270     WINHTTP_OPTION_PASSWORD                      = 0x1001,
271     WINHTTP_OPTION_PROXY_USERNAME                = 0x1002,
272     WINHTTP_OPTION_PROXY_PASSWORD                = 0x1003,
273 
274     WINHTTP_CONNS_PER_SERVER_UNLIMITED    = 0xFFFFFFFF,
275 
276     WINHTTP_AUTOLOGON_SECURITY_LEVEL_MEDIUM = 0,
277     WINHTTP_AUTOLOGON_SECURITY_LEVEL_LOW    = 1,
278     WINHTTP_AUTOLOGON_SECURITY_LEVEL_HIGH   = 2,
279 
280     WINHTTP_AUTOLOGON_SECURITY_LEVEL_DEFAULT = WINHTTP_AUTOLOGON_SECURITY_LEVEL_MEDIUM,
281 
282     WINHTTP_OPTION_REDIRECT_POLICY_NEVER                      = 0,
283     WINHTTP_OPTION_REDIRECT_POLICY_DISALLOW_HTTPS_TO_HTTP     = 1,
284     WINHTTP_OPTION_REDIRECT_POLICY_ALWAYS                     = 2,
285 
286     WINHTTP_OPTION_REDIRECT_POLICY_LAST      = WINHTTP_OPTION_REDIRECT_POLICY_ALWAYS,
287     WINHTTP_OPTION_REDIRECT_POLICY_DEFAULT   = WINHTTP_OPTION_REDIRECT_POLICY_DISALLOW_HTTPS_TO_HTTP,
288 
289     WINHTTP_DISABLE_PASSPORT_AUTH    = 0x00000000,
290     WINHTTP_ENABLE_PASSPORT_AUTH     = 0x10000000,
291     WINHTTP_DISABLE_PASSPORT_KEYRING = 0x20000000,
292     WINHTTP_ENABLE_PASSPORT_KEYRING  = 0x40000000,
293 
294     WINHTTP_DISABLE_COOKIES                   = 0x00000001,
295     WINHTTP_DISABLE_REDIRECTS                 = 0x00000002,
296     WINHTTP_DISABLE_AUTHENTICATION            = 0x00000004,
297     WINHTTP_DISABLE_KEEP_ALIVE                = 0x00000008,
298 
299     WINHTTP_ENABLE_SSL_REVOCATION             = 0x00000001,
300     WINHTTP_ENABLE_SSL_REVERT_IMPERSONATION   = 0x00000002,
301 
302     WINHTTP_DISABLE_SPN_SERVER_PORT           = 0x00000000,
303     WINHTTP_ENABLE_SPN_SERVER_PORT            = 0x00000001,
304     WINHTTP_OPTION_SPN_MASK                   = WINHTTP_ENABLE_SPN_SERVER_PORT
305 }
306 
307 // Windows 8.1 SDK:
308 static if (_WIN32_WINNT >= 0x602) {
309     enum DWORD WINHTTP_LAST_OPTION            = WINHTTP_OPTION_WEB_SOCKET_SEND_BUFFER_SIZE;
310 } else {    // Windows 7.0A SDK:
311     enum DWORD WINHTTP_LAST_OPTION            = WINHTTP_OPTION_SERVER_CBT;
312 }
313 
314 enum : DWORD {
315     WINHTTP_DECOMPRESSION_FLAG_GZIP    = 0x00000001,
316     WINHTTP_DECOMPRESSION_FLAG_DEFLATE = 0x00000002,
317     WINHTTP_DECOMPRESSION_FLAG_ALL = (WINHTTP_DECOMPRESSION_FLAG_GZIP | WINHTTP_DECOMPRESSION_FLAG_DEFLATE)
318 }
319 
320 struct WINHTTP_CREDS {
321     LPSTR lpszUserName;
322     LPSTR lpszPassword;
323     LPSTR lpszRealm;
324     DWORD dwAuthScheme;
325     LPSTR lpszHostName;
326     DWORD dwPort;
327 }
328 alias PWINHTTP_CREDS = WINHTTP_CREDS*;
329 
330 struct WINHTTP_CREDS_EX {
331     LPSTR lpszUserName;
332     LPSTR lpszPassword;
333     LPSTR lpszRealm;
334     DWORD dwAuthScheme;
335     LPSTR lpszHostName;
336     DWORD dwPort;
337     LPSTR lpszUrl;
338 }
339 alias PWINHTTP_CREDS_EX = WINHTTP_CREDS_EX*;
340 
341 enum : DWORD {
342     WINHTTP_HANDLE_TYPE_SESSION                = 1,
343     WINHTTP_HANDLE_TYPE_CONNECT                = 2,
344     WINHTTP_HANDLE_TYPE_REQUEST                = 3,
345 
346     WINHTTP_AUTH_SCHEME_BASIC      = 0x00000001,
347     WINHTTP_AUTH_SCHEME_NTLM       = 0x00000002,
348     WINHTTP_AUTH_SCHEME_PASSPORT   = 0x00000004,
349     WINHTTP_AUTH_SCHEME_DIGEST     = 0x00000008,
350     WINHTTP_AUTH_SCHEME_NEGOTIATE  = 0x00000010,
351 
352     WINHTTP_AUTH_TARGET_SERVER = 0x00000000,
353     WINHTTP_AUTH_TARGET_PROXY  = 0x00000001,
354 
355     SECURITY_FLAG_SECURE                    = 0x00000001,
356     SECURITY_FLAG_STRENGTH_WEAK             = 0x10000000,
357     SECURITY_FLAG_STRENGTH_MEDIUM           = 0x40000000,
358     SECURITY_FLAG_STRENGTH_STRONG           = 0x20000000,
359 
360     WINHTTP_CALLBACK_STATUS_FLAG_CERT_REV_FAILED         = 0x00000001,
361     WINHTTP_CALLBACK_STATUS_FLAG_INVALID_CERT            = 0x00000002,
362     WINHTTP_CALLBACK_STATUS_FLAG_CERT_REVOKED            = 0x00000004,
363     WINHTTP_CALLBACK_STATUS_FLAG_INVALID_CA              = 0x00000008,
364     WINHTTP_CALLBACK_STATUS_FLAG_CERT_CN_INVALID         = 0x00000010,
365     WINHTTP_CALLBACK_STATUS_FLAG_CERT_DATE_INVALID       = 0x00000020,
366     WINHTTP_CALLBACK_STATUS_FLAG_CERT_WRONG_USAGE        = 0x00000040,
367     WINHTTP_CALLBACK_STATUS_FLAG_SECURITY_CHANNEL_ERROR  = 0x80000000,
368 
369     WINHTTP_FLAG_SECURE_PROTOCOL_SSL2   = 0x00000008,
370     WINHTTP_FLAG_SECURE_PROTOCOL_SSL3   = 0x00000020,
371     WINHTTP_FLAG_SECURE_PROTOCOL_TLS1   = 0x00000080,
372     WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_1 = 0x00000200,
373     WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_2 = 0x00000800,
374     WINHTTP_FLAG_SECURE_PROTOCOL_ALL    = (WINHTTP_FLAG_SECURE_PROTOCOL_SSL2 |
375                                                  WINHTTP_FLAG_SECURE_PROTOCOL_SSL3 |
376                                                  WINHTTP_FLAG_SECURE_PROTOCOL_TLS1)
377 }
378 
379 alias extern(Windows) int fnWINHTTP_STATUS_CALLBACK(HINTERNET hInternet, DWORD_PTR dwContext,
380                           DWORD dwInternetStatus, LPVOID lpvStatusInformation,DWORD dwStatusInformationLength);
381 alias WINHTTP_STATUS_CALLBACK = fnWINHTTP_STATUS_CALLBACK*;
382 alias LPWINHTTP_STATUS_CALLBACK = WINHTTP_STATUS_CALLBACK*;
383 
384 enum : DWORD {
385     WINHTTP_CALLBACK_STATUS_RESOLVING_NAME          = 0x00000001,
386     WINHTTP_CALLBACK_STATUS_NAME_RESOLVED           = 0x00000002,
387     WINHTTP_CALLBACK_STATUS_CONNECTING_TO_SERVER    = 0x00000004,
388     WINHTTP_CALLBACK_STATUS_CONNECTED_TO_SERVER     = 0x00000008,
389     WINHTTP_CALLBACK_STATUS_SENDING_REQUEST         = 0x00000010,
390     WINHTTP_CALLBACK_STATUS_REQUEST_SENT            = 0x00000020,
391     WINHTTP_CALLBACK_STATUS_RECEIVING_RESPONSE      = 0x00000040,
392     WINHTTP_CALLBACK_STATUS_RESPONSE_RECEIVED       = 0x00000080,
393     WINHTTP_CALLBACK_STATUS_CLOSING_CONNECTION      = 0x00000100,
394     WINHTTP_CALLBACK_STATUS_CONNECTION_CLOSED       = 0x00000200,
395     WINHTTP_CALLBACK_STATUS_HANDLE_CREATED          = 0x00000400,
396     WINHTTP_CALLBACK_STATUS_HANDLE_CLOSING          = 0x00000800,
397     WINHTTP_CALLBACK_STATUS_DETECTING_PROXY         = 0x00001000,
398     WINHTTP_CALLBACK_STATUS_REDIRECT                = 0x00004000,
399     WINHTTP_CALLBACK_STATUS_INTERMEDIATE_RESPONSE   = 0x00008000,
400     WINHTTP_CALLBACK_STATUS_SECURE_FAILURE          = 0x00010000,
401     WINHTTP_CALLBACK_STATUS_HEADERS_AVAILABLE       = 0x00020000,
402     WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE          = 0x00040000,
403     WINHTTP_CALLBACK_STATUS_READ_COMPLETE           = 0x00080000,
404     WINHTTP_CALLBACK_STATUS_WRITE_COMPLETE          = 0x00100000,
405     WINHTTP_CALLBACK_STATUS_REQUEST_ERROR           = 0x00200000,
406     WINHTTP_CALLBACK_STATUS_SENDREQUEST_COMPLETE    = 0x00400000
407 }
408 
409 enum : DWORD {
410     WINHTTP_CALLBACK_STATUS_GETPROXYFORURL_COMPLETE = 0x01000000,
411     WINHTTP_CALLBACK_STATUS_CLOSE_COMPLETE          = 0x02000000,
412     WINHTTP_CALLBACK_STATUS_SHUTDOWN_COMPLETE       = 0x04000000
413 }
414 
415 enum : DWORD {
416     API_RECEIVE_RESPONSE        = 1,
417     API_QUERY_DATA_AVAILABLE    = 2,
418     API_READ_DATA               = 3,
419     API_WRITE_DATA              = 4,
420     API_SEND_REQUEST            = 5
421 }
422 
423 enum : DWORD {
424     WINHTTP_CALLBACK_FLAG_RESOLVE_NAME            = (WINHTTP_CALLBACK_STATUS_RESOLVING_NAME | WINHTTP_CALLBACK_STATUS_NAME_RESOLVED),
425     WINHTTP_CALLBACK_FLAG_CONNECT_TO_SERVER       = (WINHTTP_CALLBACK_STATUS_CONNECTING_TO_SERVER | WINHTTP_CALLBACK_STATUS_CONNECTED_TO_SERVER),
426     WINHTTP_CALLBACK_FLAG_SEND_REQUEST            = (WINHTTP_CALLBACK_STATUS_SENDING_REQUEST | WINHTTP_CALLBACK_STATUS_REQUEST_SENT),
427     WINHTTP_CALLBACK_FLAG_RECEIVE_RESPONSE        = (WINHTTP_CALLBACK_STATUS_RECEIVING_RESPONSE | WINHTTP_CALLBACK_STATUS_RESPONSE_RECEIVED),
428     WINHTTP_CALLBACK_FLAG_CLOSE_CONNECTION        = (WINHTTP_CALLBACK_STATUS_CLOSING_CONNECTION | WINHTTP_CALLBACK_STATUS_CONNECTION_CLOSED),
429     WINHTTP_CALLBACK_FLAG_HANDLES                 = (WINHTTP_CALLBACK_STATUS_HANDLE_CREATED | WINHTTP_CALLBACK_STATUS_HANDLE_CLOSING),
430     WINHTTP_CALLBACK_FLAG_DETECTING_PROXY         = WINHTTP_CALLBACK_STATUS_DETECTING_PROXY,
431     WINHTTP_CALLBACK_FLAG_REDIRECT                = WINHTTP_CALLBACK_STATUS_REDIRECT,
432     WINHTTP_CALLBACK_FLAG_INTERMEDIATE_RESPONSE   = WINHTTP_CALLBACK_STATUS_INTERMEDIATE_RESPONSE,
433     WINHTTP_CALLBACK_FLAG_SECURE_FAILURE          = WINHTTP_CALLBACK_STATUS_SECURE_FAILURE,
434     WINHTTP_CALLBACK_FLAG_SENDREQUEST_COMPLETE    = WINHTTP_CALLBACK_STATUS_SENDREQUEST_COMPLETE,
435     WINHTTP_CALLBACK_FLAG_HEADERS_AVAILABLE       = WINHTTP_CALLBACK_STATUS_HEADERS_AVAILABLE,
436     WINHTTP_CALLBACK_FLAG_DATA_AVAILABLE          = WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE,
437     WINHTTP_CALLBACK_FLAG_READ_COMPLETE           = WINHTTP_CALLBACK_STATUS_READ_COMPLETE,
438     WINHTTP_CALLBACK_FLAG_WRITE_COMPLETE          = WINHTTP_CALLBACK_STATUS_WRITE_COMPLETE,
439     WINHTTP_CALLBACK_FLAG_REQUEST_ERROR           = WINHTTP_CALLBACK_STATUS_REQUEST_ERROR
440 }
441 
442 enum DWORD WINHTTP_CALLBACK_FLAG_GETPROXYFORURL_COMPLETE  = WINHTTP_CALLBACK_STATUS_GETPROXYFORURL_COMPLETE;
443 
444 // Windows 8+/2012+
445 static if (_WIN32_WINNT >= 0x602)   {
446   enum DWORD WINHTTP_CALLBACK_FLAG_ALL_COMPLETIONS        =  (WINHTTP_CALLBACK_STATUS_SENDREQUEST_COMPLETE
447                                                         | WINHTTP_CALLBACK_STATUS_HEADERS_AVAILABLE
448                                                         | WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE
449                                                         | WINHTTP_CALLBACK_STATUS_READ_COMPLETE
450                                                         | WINHTTP_CALLBACK_STATUS_WRITE_COMPLETE
451                                                         | WINHTTP_CALLBACK_STATUS_REQUEST_ERROR);
452 } else {
453   enum DWORD WINHTTP_CALLBACK_FLAG_ALL_COMPLETIONS        =  (WINHTTP_CALLBACK_STATUS_SENDREQUEST_COMPLETE
454                                                         | WINHTTP_CALLBACK_STATUS_HEADERS_AVAILABLE
455                                                         | WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE
456                                                         | WINHTTP_CALLBACK_STATUS_READ_COMPLETE
457                                                         | WINHTTP_CALLBACK_STATUS_WRITE_COMPLETE
458                                                         | WINHTTP_CALLBACK_STATUS_REQUEST_ERROR
459                                                         | WINHTTP_CALLBACK_STATUS_GETPROXYFORURL_COMPLETE);
460 }
461 
462 enum DWORD  WINHTTP_CALLBACK_FLAG_ALL_NOTIFICATIONS      =  0xffffffff;
463 
464 enum WINHTTP_INVALID_STATUS_CALLBACK        = (cast(WINHTTP_STATUS_CALLBACK)(-1L));
465 
466 enum : DWORD {
467     WINHTTP_QUERY_MIME_VERSION               = 0,
468     WINHTTP_QUERY_CONTENT_TYPE               = 1,
469     WINHTTP_QUERY_CONTENT_TRANSFER_ENCODING  = 2,
470     WINHTTP_QUERY_CONTENT_ID                 = 3,
471     WINHTTP_QUERY_CONTENT_DESCRIPTION        = 4,
472     WINHTTP_QUERY_CONTENT_LENGTH             = 5,
473     WINHTTP_QUERY_CONTENT_LANGUAGE           = 6,
474     WINHTTP_QUERY_ALLOW                      = 7,
475     WINHTTP_QUERY_PUBLIC                     = 8,
476     WINHTTP_QUERY_DATE                       = 9,
477     WINHTTP_QUERY_EXPIRES                    = 10,
478     WINHTTP_QUERY_LAST_MODIFIED              = 11,
479     WINHTTP_QUERY_MESSAGE_ID                 = 12,
480     WINHTTP_QUERY_URI                        = 13,
481     WINHTTP_QUERY_DERIVED_FROM               = 14,
482     WINHTTP_QUERY_COST                       = 15,
483     WINHTTP_QUERY_LINK                       = 16,
484     WINHTTP_QUERY_PRAGMA                     = 17,
485     WINHTTP_QUERY_VERSION                    = 18,
486     WINHTTP_QUERY_STATUS_CODE                = 19,
487     WINHTTP_QUERY_STATUS_TEXT                = 20,
488     WINHTTP_QUERY_RAW_HEADERS                = 21,
489     WINHTTP_QUERY_RAW_HEADERS_CRLF           = 22,
490     WINHTTP_QUERY_CONNECTION                 = 23,
491     WINHTTP_QUERY_ACCEPT                     = 24,
492     WINHTTP_QUERY_ACCEPT_CHARSET             = 25,
493     WINHTTP_QUERY_ACCEPT_ENCODING            = 26,
494     WINHTTP_QUERY_ACCEPT_LANGUAGE            = 27,
495     WINHTTP_QUERY_AUTHORIZATION              = 28,
496     WINHTTP_QUERY_CONTENT_ENCODING           = 29,
497     WINHTTP_QUERY_FORWARDED                  = 30,
498     WINHTTP_QUERY_FROM                       = 31,
499     WINHTTP_QUERY_IF_MODIFIED_SINCE          = 32,
500     WINHTTP_QUERY_LOCATION                   = 33,
501     WINHTTP_QUERY_ORIG_URI                   = 34,
502     WINHTTP_QUERY_REFERER                    = 35,
503     WINHTTP_QUERY_RETRY_AFTER                = 36,
504     WINHTTP_QUERY_SERVER                     = 37,
505     WINHTTP_QUERY_TITLE                      = 38,
506     WINHTTP_QUERY_USER_AGENT                 = 39,
507     WINHTTP_QUERY_WWW_AUTHENTICATE           = 40,
508     WINHTTP_QUERY_PROXY_AUTHENTICATE         = 41,
509     WINHTTP_QUERY_ACCEPT_RANGES              = 42,
510     WINHTTP_QUERY_SET_COOKIE                 = 43,
511     WINHTTP_QUERY_COOKIE                     = 44,
512     WINHTTP_QUERY_REQUEST_METHOD             = 45,
513     WINHTTP_QUERY_REFRESH                    = 46,
514     WINHTTP_QUERY_CONTENT_DISPOSITION        = 47,
515 
516     // HTTP 1.1 defined headers
517 
518     WINHTTP_QUERY_AGE                        = 48,
519     WINHTTP_QUERY_CACHE_CONTROL              = 49,
520     WINHTTP_QUERY_CONTENT_BASE               = 50,
521     WINHTTP_QUERY_CONTENT_LOCATION           = 51,
522     WINHTTP_QUERY_CONTENT_MD5                = 52,
523     WINHTTP_QUERY_CONTENT_RANGE              = 53,
524     WINHTTP_QUERY_ETAG                       = 54,
525     WINHTTP_QUERY_HOST                       = 55,
526     WINHTTP_QUERY_IF_MATCH                   = 56,
527     WINHTTP_QUERY_IF_NONE_MATCH              = 57,
528     WINHTTP_QUERY_IF_RANGE                   = 58,
529     WINHTTP_QUERY_IF_UNMODIFIED_SINCE        = 59,
530     WINHTTP_QUERY_MAX_FORWARDS               = 60,
531     WINHTTP_QUERY_PROXY_AUTHORIZATION        = 61,
532     WINHTTP_QUERY_RANGE                      = 62,
533     WINHTTP_QUERY_TRANSFER_ENCODING          = 63,
534     WINHTTP_QUERY_UPGRADE                    = 64,
535     WINHTTP_QUERY_VARY                       = 65,
536     WINHTTP_QUERY_VIA                        = 66,
537     WINHTTP_QUERY_WARNING                    = 67,
538     WINHTTP_QUERY_EXPECT                     = 68,
539     WINHTTP_QUERY_PROXY_CONNECTION           = 69,
540     WINHTTP_QUERY_UNLESS_MODIFIED_SINCE      = 70,
541 
542     WINHTTP_QUERY_PROXY_SUPPORT              = 75,
543     WINHTTP_QUERY_AUTHENTICATION_INFO        = 76,
544     WINHTTP_QUERY_PASSPORT_URLS              = 77,
545     WINHTTP_QUERY_PASSPORT_CONFIG            = 78,
546 
547     WINHTTP_QUERY_MAX                        = 78,
548 
549     WINHTTP_QUERY_CUSTOM                     = 65535,
550 
551     WINHTTP_QUERY_FLAG_REQUEST_HEADERS         = 0x80000000,
552 
553     WINHTTP_QUERY_FLAG_SYSTEMTIME              = 0x40000000,
554 
555     WINHTTP_QUERY_FLAG_NUMBER                  = 0x20000000
556 }
557 
558 enum : DWORD {
559     HTTP_STATUS_CONTINUE            = 100,
560     HTTP_STATUS_SWITCH_PROTOCOLS    = 101,
561 
562     HTTP_STATUS_OK                  = 200,
563     HTTP_STATUS_CREATED             = 201,
564     HTTP_STATUS_ACCEPTED            = 202,
565     HTTP_STATUS_PARTIAL             = 203,
566     HTTP_STATUS_NO_CONTENT          = 204,
567     HTTP_STATUS_RESET_CONTENT       = 205,
568     HTTP_STATUS_PARTIAL_CONTENT     = 206,
569     HTTP_STATUS_WEBDAV_MULTI_STATUS = 207,
570 
571     HTTP_STATUS_AMBIGUOUS           = 300,
572     HTTP_STATUS_MOVED               = 301,
573     HTTP_STATUS_REDIRECT            = 302,
574     HTTP_STATUS_REDIRECT_METHOD     = 303,
575     HTTP_STATUS_NOT_MODIFIED        = 304,
576     HTTP_STATUS_USE_PROXY           = 305,
577     HTTP_STATUS_REDIRECT_KEEP_VERB  = 307,
578 
579     HTTP_STATUS_BAD_REQUEST       = 400,
580     HTTP_STATUS_DENIED            = 401,
581     HTTP_STATUS_PAYMENT_REQ       = 402,
582     HTTP_STATUS_FORBIDDEN         = 403,
583     HTTP_STATUS_NOT_FOUND         = 404,
584     HTTP_STATUS_BAD_METHOD        = 405,
585     HTTP_STATUS_NONE_ACCEPTABLE   = 406,
586     HTTP_STATUS_PROXY_AUTH_REQ    = 407,
587     HTTP_STATUS_REQUEST_TIMEOUT   = 408,
588     HTTP_STATUS_CONFLICT          = 409,
589     HTTP_STATUS_GONE              = 410,
590     HTTP_STATUS_LENGTH_REQUIRED   = 411,
591     HTTP_STATUS_PRECOND_FAILED    = 412,
592     HTTP_STATUS_REQUEST_TOO_LARGE = 413,
593     HTTP_STATUS_URI_TOO_LONG      = 414,
594     HTTP_STATUS_UNSUPPORTED_MEDIA = 415,
595     HTTP_STATUS_RETRY_WITH        = 449,
596 
597     HTTP_STATUS_SERVER_ERROR      = 500,
598     HTTP_STATUS_NOT_SUPPORTED     = 501,
599     HTTP_STATUS_BAD_GATEWAY       = 502,
600     HTTP_STATUS_SERVICE_UNAVAIL   = 503,
601     HTTP_STATUS_GATEWAY_TIMEOUT   = 504,
602     HTTP_STATUS_VERSION_NOT_SUP   = 505,
603 
604     HTTP_STATUS_FIRST             = HTTP_STATUS_CONTINUE,
605     HTTP_STATUS_LAST              = HTTP_STATUS_VERSION_NOT_SUP
606 }
607 
608 enum LPCWSTR WINHTTP_NO_REFERER             = null;
609 enum LPCWSTR * WINHTTP_DEFAULT_ACCEPT_TYPES = null;
610 
611 enum : DWORD {
612     WINHTTP_ADDREQ_INDEX_MASK     = 0x0000FFFF,
613     WINHTTP_ADDREQ_FLAGS_MASK     = 0xFFFF0000,
614 
615     WINHTTP_ADDREQ_FLAG_ADD_IF_NEW = 0x10000000,
616 
617     WINHTTP_ADDREQ_FLAG_ADD        = 0x20000000,
618 
619     WINHTTP_ADDREQ_FLAG_COALESCE_WITH_COMMA       = 0x40000000,
620     WINHTTP_ADDREQ_FLAG_COALESCE_WITH_SEMICOLON   = 0x01000000,
621     WINHTTP_ADDREQ_FLAG_COALESCE                  = WINHTTP_ADDREQ_FLAG_COALESCE_WITH_COMMA,
622 
623     WINHTTP_ADDREQ_FLAG_REPLACE    = 0x80000000,
624 
625     WINHTTP_IGNORE_REQUEST_TOTAL_LENGTH = 0
626 }
627 
628 enum LPCWSTR WINHTTP_NO_ADDITIONAL_HEADERS = null;
629 enum LPVOID WINHTTP_NO_REQUEST_DATA        = null;
630 
631 enum LPCWSTR WINHTTP_HEADER_NAME_BY_INDEX  = null;
632 enum LPVOID WINHTTP_NO_OUTPUT_BUFFER       = null;
633 enum LPDWORD WINHTTP_NO_HEADER_INDEX       = null;
634 
635 struct WINHTTP_CURRENT_USER_IE_PROXY_CONFIG {
636     BOOL    fAutoDetect;
637     LPWSTR  lpszAutoConfigUrl;
638     LPWSTR  lpszProxy;
639     LPWSTR  lpszProxyBypass;
640 }
641 
642 // WinHttp API error returns
643 enum : DWORD {
644     WINHTTP_ERROR_BASE                   = 12000,
645 
646     ERROR_WINHTTP_OUT_OF_HANDLES         = (WINHTTP_ERROR_BASE + 1),
647     ERROR_WINHTTP_TIMEOUT                = (WINHTTP_ERROR_BASE + 2),
648     ERROR_WINHTTP_INTERNAL_ERROR         = (WINHTTP_ERROR_BASE + 4),
649     ERROR_WINHTTP_INVALID_URL            = (WINHTTP_ERROR_BASE + 5),
650     ERROR_WINHTTP_UNRECOGNIZED_SCHEME    = (WINHTTP_ERROR_BASE + 6),
651     ERROR_WINHTTP_NAME_NOT_RESOLVED      = (WINHTTP_ERROR_BASE + 7),
652     ERROR_WINHTTP_INVALID_OPTION         = (WINHTTP_ERROR_BASE + 9),
653     ERROR_WINHTTP_OPTION_NOT_SETTABLE    = (WINHTTP_ERROR_BASE + 11),
654     ERROR_WINHTTP_SHUTDOWN               = (WINHTTP_ERROR_BASE + 12),
655 
656     ERROR_WINHTTP_LOGIN_FAILURE          = (WINHTTP_ERROR_BASE + 15),
657     ERROR_WINHTTP_OPERATION_CANCELLED    = (WINHTTP_ERROR_BASE + 17),
658     ERROR_WINHTTP_INCORRECT_HANDLE_TYPE  = (WINHTTP_ERROR_BASE + 18),
659     ERROR_WINHTTP_INCORRECT_HANDLE_STATE = (WINHTTP_ERROR_BASE + 19),
660     ERROR_WINHTTP_CANNOT_CONNECT         = (WINHTTP_ERROR_BASE + 29),
661     ERROR_WINHTTP_CONNECTION_ERROR       = (WINHTTP_ERROR_BASE + 30),
662     ERROR_WINHTTP_RESEND_REQUEST         = (WINHTTP_ERROR_BASE + 32),
663 
664     ERROR_WINHTTP_CLIENT_AUTH_CERT_NEEDED = (WINHTTP_ERROR_BASE + 44),
665 
666     ERROR_WINHTTP_CANNOT_CALL_BEFORE_OPEN = (WINHTTP_ERROR_BASE + 100),
667     ERROR_WINHTTP_CANNOT_CALL_BEFORE_SEND = (WINHTTP_ERROR_BASE + 101),
668     ERROR_WINHTTP_CANNOT_CALL_AFTER_SEND  = (WINHTTP_ERROR_BASE + 102),
669     ERROR_WINHTTP_CANNOT_CALL_AFTER_OPEN  = (WINHTTP_ERROR_BASE + 103),
670 
671     ERROR_WINHTTP_HEADER_NOT_FOUND           = (WINHTTP_ERROR_BASE + 150),
672     ERROR_WINHTTP_INVALID_SERVER_RESPONSE    = (WINHTTP_ERROR_BASE + 152),
673     ERROR_WINHTTP_INVALID_HEADER             = (WINHTTP_ERROR_BASE + 153),
674     ERROR_WINHTTP_INVALID_QUERY_REQUEST      = (WINHTTP_ERROR_BASE + 154),
675     ERROR_WINHTTP_HEADER_ALREADY_EXISTS      = (WINHTTP_ERROR_BASE + 155),
676     ERROR_WINHTTP_REDIRECT_FAILED            = (WINHTTP_ERROR_BASE + 156),
677 
678     ERROR_WINHTTP_AUTO_PROXY_SERVICE_ERROR  = (WINHTTP_ERROR_BASE + 178),
679     ERROR_WINHTTP_BAD_AUTO_PROXY_SCRIPT     = (WINHTTP_ERROR_BASE + 166),
680     ERROR_WINHTTP_UNABLE_TO_DOWNLOAD_SCRIPT = (WINHTTP_ERROR_BASE + 167),
681     ERROR_WINHTTP_UNHANDLED_SCRIPT_TYPE     = (WINHTTP_ERROR_BASE + 176),
682     ERROR_WINHTTP_SCRIPT_EXECUTION_ERROR    = (WINHTTP_ERROR_BASE + 177),
683 
684     ERROR_WINHTTP_NOT_INITIALIZED        = (WINHTTP_ERROR_BASE + 172),
685     ERROR_WINHTTP_SECURE_FAILURE         = (WINHTTP_ERROR_BASE + 175),
686 
687     ERROR_WINHTTP_SECURE_CERT_DATE_INVALID  = (WINHTTP_ERROR_BASE + 37),
688     ERROR_WINHTTP_SECURE_CERT_CN_INVALID    = (WINHTTP_ERROR_BASE + 38),
689     ERROR_WINHTTP_SECURE_INVALID_CA         = (WINHTTP_ERROR_BASE + 45),
690     ERROR_WINHTTP_SECURE_CERT_REV_FAILED    = (WINHTTP_ERROR_BASE + 57),
691     ERROR_WINHTTP_SECURE_CHANNEL_ERROR      = (WINHTTP_ERROR_BASE + 157),
692     ERROR_WINHTTP_SECURE_INVALID_CERT       = (WINHTTP_ERROR_BASE + 169),
693     ERROR_WINHTTP_SECURE_CERT_REVOKED       = (WINHTTP_ERROR_BASE + 170),
694     ERROR_WINHTTP_SECURE_CERT_WRONG_USAGE   = (WINHTTP_ERROR_BASE + 179),
695 
696     ERROR_WINHTTP_AUTODETECTION_FAILED                  = (WINHTTP_ERROR_BASE + 180),
697     ERROR_WINHTTP_HEADER_COUNT_EXCEEDED                 = (WINHTTP_ERROR_BASE + 181),
698     ERROR_WINHTTP_HEADER_SIZE_OVERFLOW                  = (WINHTTP_ERROR_BASE + 182),
699     ERROR_WINHTTP_CHUNKED_ENCODING_HEADER_SIZE_OVERFLOW = (WINHTTP_ERROR_BASE + 183),
700     ERROR_WINHTTP_RESPONSE_DRAIN_OVERFLOW               = (WINHTTP_ERROR_BASE + 184),
701     ERROR_WINHTTP_CLIENT_CERT_NO_PRIVATE_KEY            = (WINHTTP_ERROR_BASE + 185),
702     ERROR_WINHTTP_CLIENT_CERT_NO_ACCESS_PRIVATE_KEY     = (WINHTTP_ERROR_BASE + 186),
703 
704     WINHTTP_ERROR_LAST                                  = (WINHTTP_ERROR_BASE + 186)
705 }
706 
707 enum : DWORD {
708     WINHTTP_RESET_STATE                  = 0x00000001,
709     WINHTTP_RESET_SWPAD_CURRENT_NETWORK  = 0x00000002,
710     WINHTTP_RESET_SWPAD_ALL              = 0x00000004,
711     WINHTTP_RESET_SCRIPT_CACHE           = 0x00000008,
712     WINHTTP_RESET_ALL                    = 0x0000FFFF,
713     WINHTTP_RESET_NOTIFY_NETWORK_CHANGED = 0x00010000,
714     WINHTTP_RESET_OUT_OF_PROC            = 0x00020000
715 }
716 
717 enum : DWORD {
718     WINHTTP_WEB_SOCKET_MAX_CLOSE_REASON_LENGTH = 123,
719     WINHTTP_WEB_SOCKET_MIN_KEEPALIVE_VALUE     = 15000
720 }
721 
722 // Version(Windows8) || Version(Windows2012):
723 static if (_WIN32_WINNT >= 0x602)
724 {
725     enum WINHTTP_WEB_SOCKET_OPERATION : DWORD
726     {
727         WINHTTP_WEB_SOCKET_SEND_OPERATION                   = 0,
728         WINHTTP_WEB_SOCKET_RECEIVE_OPERATION                = 1,
729         WINHTTP_WEB_SOCKET_CLOSE_OPERATION                  = 2,
730         WINHTTP_WEB_SOCKET_SHUTDOWN_OPERATION               = 3
731     }
732     enum WINHTTP_WEB_SOCKET_BUFFER_TYPE : DWORD
733     {
734         WINHTTP_WEB_SOCKET_BINARY_MESSAGE_BUFFER_TYPE       = 0,
735         WINHTTP_WEB_SOCKET_BINARY_FRAGMENT_BUFFER_TYPE      = 1,
736         WINHTTP_WEB_SOCKET_UTF8_MESSAGE_BUFFER_TYPE         = 2,
737         WINHTTP_WEB_SOCKET_UTF8_FRAGMENT_BUFFER_TYPE        = 3,
738         WINHTTP_WEB_SOCKET_CLOSE_BUFFER_TYPE                = 4
739     }
740     enum WINHTTP_WEB_SOCKET_CLOSE_STATUS : DWORD
741     {
742         WINHTTP_WEB_SOCKET_SUCCESS_CLOSE_STATUS                = 1000,
743         WINHTTP_WEB_SOCKET_ENDPOINT_TERMINATED_CLOSE_STATUS    = 1001,
744         WINHTTP_WEB_SOCKET_PROTOCOL_ERROR_CLOSE_STATUS         = 1002,
745         WINHTTP_WEB_SOCKET_INVALID_DATA_TYPE_CLOSE_STATUS      = 1003,
746         WINHTTP_WEB_SOCKET_EMPTY_CLOSE_STATUS                  = 1005,
747         WINHTTP_WEB_SOCKET_ABORTED_CLOSE_STATUS                = 1006,
748         WINHTTP_WEB_SOCKET_INVALID_PAYLOAD_CLOSE_STATUS        = 1007,
749         WINHTTP_WEB_SOCKET_POLICY_VIOLATION_CLOSE_STATUS       = 1008,
750         WINHTTP_WEB_SOCKET_MESSAGE_TOO_BIG_CLOSE_STATUS        = 1009,
751         WINHTTP_WEB_SOCKET_UNSUPPORTED_EXTENSIONS_CLOSE_STATUS = 1010,
752         WINHTTP_WEB_SOCKET_SERVER_ERROR_CLOSE_STATUS           = 1011,
753         WINHTTP_WEB_SOCKET_SECURE_HANDSHAKE_ERROR_CLOSE_STATUS = 1015
754     }
755     struct WINHTTP_PROXY_RESULT_ENTRY {
756         BOOL            fProxy;
757         BOOL            fBypass;
758         INTERNET_SCHEME ProxyScheme;
759         PWSTR           pwszProxy;
760         INTERNET_PORT   ProxyPort;
761     }
762     struct WINHTTP_PROXY_RESULT {
763         DWORD cEntries;
764         WINHTTP_PROXY_RESULT_ENTRY *pEntries;
765     }
766     struct WINHTTP_WEB_SOCKET_ASYNC_RESULT {
767         WINHTTP_ASYNC_RESULT AsyncResult;
768         WINHTTP_WEB_SOCKET_OPERATION Operation;
769     }
770     struct WINHTTP_WEB_SOCKET_STATUS {
771         DWORD dwBytesTransferred;
772         WINHTTP_WEB_SOCKET_BUFFER_TYPE eBufferType;
773     }
774 }
775 
776 
777 extern (Windows) {
778     BOOL WinHttpAddRequestHeaders(HINTERNET hRequest, LPCWSTR pwszHeaders, DWORD dwHeadersLength, DWORD dwModifiers);
779 
780     BOOL WinHttpCheckPlatform();
781 
782     BOOL WinHttpCloseHandle(HINTERNET hInternet);
783 
784     HINTERNET WinHttpConnect(HINTERNET hSession, LPCWSTR pswzServerName, INTERNET_PORT nServerPort, DWORD dwReserved);
785 
786     BOOL WinHttpCrackUrl(LPCWSTR pwszUrl, DWORD dwUrlLength, DWORD dwFlags, LPURL_COMPONENTS lpUrlComponents);
787 
788     BOOL WinHttpCreateUrl(LPURL_COMPONENTS lpUrlComponents, DWORD dwFlags, LPWSTR pwszUrl, LPDWORD lpdwUrlLength);
789     BOOL WinHttpDetectAutoProxyConfigUrl(DWORD dwAutoDetectFlags, LPWSTR *ppwszAutoConfigUrl);
790 
791     BOOL WinHttpGetDefaultProxyConfiguration(WINHTTP_PROXY_INFO *pProxyInfo);
792     BOOL WinHttpGetIEProxyConfigForCurrentUser(WINHTTP_CURRENT_USER_IE_PROXY_CONFIG *pProxyConfig);
793     BOOL WinHttpGetProxyForUrl(HINTERNET hSession,  LPCWSTR lpcwszUrl,
794                                WINHTTP_AUTOPROXY_OPTIONS *pAutoProxyOptions, WINHTTP_PROXY_INFO *pProxyInfo);
795 
796     HINTERNET WinHttpOpen(LPCWSTR pwszUserAgent, DWORD dwAccessType, LPCWSTR pwszProxyName,
797                           LPCWSTR pwszProxyBypass, DWORD dwFlags);
798     HINTERNET WinHttpOpenRequest(HINTERNET hConnect, LPCWSTR pwszVerb, LPCWSTR pwszObjectName,
799                                  LPCWSTR pwszVersion, LPCWSTR pwszReferrer,
800                                  LPCWSTR *ppwszAcceptTypes, DWORD dwFlags);
801 
802     BOOL WinHttpQueryAuthSchemes(HINTERNET hRequest, LPDWORD lpdwSupportedSchemes,
803                                  LPDWORD lpdwFirstScheme, LPDWORD pdwAuthTarget);
804     BOOL WinHttpQueryDataAvailable(HINTERNET hRequest, LPDWORD lpdwNumberOfBytesAvailable);
805     BOOL WinHttpQueryHeaders(HINTERNET hRequest, DWORD dwInfoLevel, LPCWSTR pwszName,
806                              LPVOID lpBuffer, LPDWORD lpdwBufferLength, LPDWORD lpdwIndex);
807     BOOL WinHttpQueryOption(HINTERNET hInternet, DWORD dwOption, LPVOID lpBuffer,
808                             LPDWORD lpdwBufferLength);
809 
810     BOOL WinHttpReadData(HINTERNET hRequest, LPVOID lpBuffer, DWORD dwNumberOfBytesToRead,
811                          LPDWORD lpdwNumberOfBytesRead);
812     BOOL WinHttpReceiveResponse(HINTERNET hRequest, LPVOID lpReserved);
813 
814     BOOL WinHttpSendRequest(HINTERNET hRequest, LPCWSTR pwszHeaders, DWORD dwHeadersLength,
815                             LPVOID lpOptional, DWORD dwOptionalLength, DWORD dwTotalLength, DWORD_PTR dwContext);
816 
817     BOOL WinHttpSetCredentials(HINTERNET hRequest, DWORD AuthTargets, DWORD AuthScheme,
818                                LPCWSTR pwszUserName, LPCWSTR pwszPassword, LPVOID pAuthParams);
819     BOOL WinHttpSetDefaultProxyConfiguration(WINHTTP_PROXY_INFO *pProxyInfo);
820     BOOL WinHttpSetOption(HINTERNET hInternet, DWORD dwOption, LPVOID lpBuffer, DWORD dwBufferLength);
821     WINHTTP_STATUS_CALLBACK WinHttpSetStatusCallback(HINTERNET hInternet,
822                                                      WINHTTP_STATUS_CALLBACK lpfnInternetCallback,
823                                                      DWORD dwNotificationFlags, DWORD_PTR dwReserved);
824     BOOL WinHttpSetTimeouts(HINTERNET hInternet, int dwResolveTimeout, int dwConnectTimeout,
825                             int dwSendTimeout, int dwReceiveTimeout);
826 
827     BOOL WinHttpTimeFromSystemTime(const SYSTEMTIME *pst, LPWSTR pwszTime);
828     BOOL WinHttpTimeToSystemTime(LPCWSTR pwszTime, SYSTEMTIME *pst);
829 
830     BOOL WinHttpWriteData(HINTERNET hRequest, LPCVOID lpBuffer, DWORD dwNumberOfBytesToWrite,
831                           LPDWORD lpdwNumberOfBytesWritten);
832 
833   // Version(Windows8) || Version(Windows2012):
834   static if (_WIN32_WINNT >= 0x602) {
835     DWORD WinHttpCreateProxyResolver(HINTERNET hSession, HINTERNET *phResolver);
836     void WinHttpFreeProxyResult(WINHTTP_PROXY_RESULT *pProxyResult);
837     DWORD WinHttpGetProxyForUrlEx(HINTERNET hResolver, PCWSTR pcwszUrl,
838                                   WINHTTP_AUTOPROXY_OPTIONS *pAutoProxyOptions, DWORD_PTR pContext);
839     DWORD WinHttpGetProxyResult(HINTERNET hResolver, WINHTTP_PROXY_RESULT *pProxyResult);
840     DWORD WinHttpResetAutoProxy(HINTERNET hSession, DWORD dwFlags);
841     DWORD WinHttpWebSocketClose(HINTERNET hWebSocket, USHORT usStatus, PVOID pvReason, DWORD dwReasonLength);
842     HINTERNET WinHttpWebSocketCompleteUpgrade(HINTERNET hRequest, DWORD_PTR pContext);
843     DWORD WinHttpWebSocketQueryCloseStatus(HINTERNET hWebSocket, USHORT *pusStatus, PVOID pvReason,
844                                            DWORD dwReasonLength, DWORD *pdwReasonLengthConsumed);
845     DWORD WinHttpWebSocketReceive(HINTERNET hWebSocket, PVOID pvBuffer,  DWORD dwBufferLength,
846                                   DWORD *pdwBytesRead, WINHTTP_WEB_SOCKET_BUFFER_TYPE *peBufferType);
847     DWORD WinHttpWebSocketSend(HINTERNET hWebSocket, WINHTTP_WEB_SOCKET_BUFFER_TYPE eBufferType,
848                                PVOID pvBuffer, DWORD dwBufferLength);
849     DWORD WinHttpWebSocketShutdown(HINTERNET hWebSocket, USHORT usStatus, PVOID pvReason, DWORD dwReasonLength);
850   }
851 }