xref: /netbsd-src/external/gpl3/gcc/dist/libphobos/libdruntime/core/sys/windows/winhttp.d (revision 0a3071956a3a9fdebdbf7f338cf2d439b45fc728)
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 module core.sys.windows.winhttp;
10 version (Windows):
11 @system:
12 pragma(lib, "winhttp");
13 // FIXME: Grouping of constants. Windows SDK doesn't make this entirely clear
14 // FIXME: Verify WINHTTP_STATUS_CALLBACK function declaration works correctly
15 
16 import core.sys.windows.w32api;
17 import core.sys.windows.winbase;
18 import core.sys.windows.windef;
19 import core.sys.windows.winsock2;  // Selective Imports BUG (: SOCKADDR_STORAGE;)
20 
21 alias HINTERNET = void*;
22 alias LPHINTERNET = HINTERNET*;
23 alias INTERNET_PORT = WORD;
24 alias LPINTERNET_PORT = INTERNET_PORT*;
25 alias INTERNET_SCHEME = int;
26 alias LPINTERNET_SCHEME = INTERNET_SCHEME*;
27 
28 // Protocol 'Manifests'
29 enum : DWORD {
30     INTERNET_DEFAULT_PORT       = 0,
31     INTERNET_DEFAULT_HTTP_PORT  = 80,
32     INTERNET_DEFAULT_HTTPS_PORT = 443
33 }
34 
35 // WinHttpOpen() Flags:
36 enum DWORD WINHTTP_FLAG_ASYNC = 0x10000000;
37 
38 // WinHttpOpenRequest() Flags:
39 enum : DWORD {
40     WINHTTP_FLAG_SECURE               = 0x00800000,
41     WINHTTP_FLAG_ESCAPE_PERCENT       = 0x00000004,
42     WINHTTP_FLAG_NULL_CODEPAGE        = 0x00000008,
43     WINHTTP_FLAG_BYPASS_PROXY_CACHE   = 0x00000100,
44     WINHTTP_FLAG_REFRESH              = WINHTTP_FLAG_BYPASS_PROXY_CACHE,
45     WINHTTP_FLAG_ESCAPE_DISABLE       = 0x00000040,
46     WINHTTP_FLAG_ESCAPE_DISABLE_QUERY = 0x00000080,
47 
48     SECURITY_FLAG_IGNORE_UNKNOWN_CA        = 0x00000100,
49     SECURITY_FLAG_IGNORE_CERT_DATE_INVALID = 0x00002000,
50     SECURITY_FLAG_IGNORE_CERT_CN_INVALID   = 0x00001000,
51     SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE  = 0x00000200
52 }
53 
54 struct WINHTTP_ASYNC_RESULT {
55     DWORD_PTR dwResult;
56     DWORD dwError;
57 }
58 alias LPWINHTTP_ASYNC_RESULT = WINHTTP_ASYNC_RESULT*;
59 
60 struct HTTP_VERSION_INFO {
61     DWORD dwMajorVersion;
62     DWORD dwMinorVersion;
63 }
64 alias LPHTTP_VERSION_INFO = HTTP_VERSION_INFO*;
65 
66 // URL Scheme
67 enum : DWORD {
68     INTERNET_SCHEME_HTTP  = 1,
69     INTERNET_SCHEME_HTTPS = 2,
70     INTERNET_SCHEME_FTP   = 3,
71     INTERNET_SCHEME_SOCKS = 4
72 }
73 
74 struct URL_COMPONENTS {
75     DWORD   dwStructSize;
76     LPWSTR  lpszScheme;
77     DWORD   dwSchemeLength;
78     INTERNET_SCHEME nScheme;
79     LPWSTR  lpszHostName;
80     DWORD   dwHostNameLength;
81     INTERNET_PORT nPort;
82     LPWSTR  lpszUserName;
83     DWORD   dwUserNameLength;
84     LPWSTR  lpszPassword;
85     DWORD   dwPasswordLength;
86     LPWSTR  lpszUrlPath;
87     DWORD   dwUrlPathLength;
88     LPWSTR  lpszExtraInfo;
89     DWORD   dwExtraInfoLength;
90 }
91 alias LPURL_COMPONENTS = URL_COMPONENTS*;
92 alias URL_COMPONENTSW = URL_COMPONENTS;
93 alias LPURL_COMPONENTSW = URL_COMPONENTS*;
94 
95 struct WINHTTP_PROXY_INFO {
96     DWORD  dwAccessType;
97     LPWSTR lpszProxy;
98     LPWSTR lpszProxyBypass;
99 }
100 alias LPWINHTTP_PROXY_INFO = WINHTTP_PROXY_INFO*;
101 alias WINHTTP_PROXY_INFOW = WINHTTP_PROXY_INFO;
102 alias LPWINHTTP_PROXY_INFOW = WINHTTP_PROXY_INFO*;
103 
104 struct WINHTTP_AUTOPROXY_OPTIONS {
105     DWORD   dwFlags;
106     DWORD   dwAutoDetectFlags;
107     LPCWSTR lpszAutoConfigUrl;
108     LPVOID  lpvReserved;
109     DWORD   dwReserved;
110     BOOL    fAutoLogonIfChallenged;
111 }
112 
113 enum : DWORD {
114     WINHTTP_AUTOPROXY_AUTO_DETECT           = 0x00000001,
115     WINHTTP_AUTOPROXY_CONFIG_URL            = 0x00000002,
116     WINHTTP_AUTOPROXY_HOST_KEEPCASE         = 0x00000004,
117     WINHTTP_AUTOPROXY_HOST_LOWERCASE        = 0x00000008,
118     WINHTTP_AUTOPROXY_RUN_INPROCESS         = 0x00010000,
119     WINHTTP_AUTOPROXY_RUN_OUTPROCESS_ONLY   = 0x00020000,
120     WINHTTP_AUTOPROXY_NO_DIRECTACCESS       = 0x00040000,
121     WINHTTP_AUTOPROXY_NO_CACHE_CLIENT       = 0x00080000,
122     WINHTTP_AUTOPROXY_NO_CACHE_SVC          = 0x00100000,
123 
124     WINHTTP_AUTOPROXY_SORT_RESULTS          = 0x00400000
125 }
126 
127 // dwAutoDetectFlags
128 enum : DWORD {
129     WINHTTP_AUTO_DETECT_TYPE_DHCP           = 0x00000001,
130     WINHTTP_AUTO_DETECT_TYPE_DNS_A          = 0x00000002
131 }
132 
133 struct WINHTTP_CERTIFICATE_INFO {
134     FILETIME ftExpiry;
135     FILETIME ftStart;
136     LPWSTR lpszSubjectInfo;
137     LPWSTR lpszIssuerInfo;
138     LPWSTR lpszProtocolName;
139     LPWSTR lpszSignatureAlgName;
140     LPWSTR lpszEncryptionAlgName;
141     DWORD dwKeySize;
142 }
143 
144 // This structure is only defined #if _WS2DEF_ defined (from <ws2def.h>) - per Windows SDK
145 align(4)
146 struct WINHTTP_CONNECTION_INFO {
147 align(4):
148     DWORD cbSize;
149     version (Win64)
150         DWORD _padding; // cheap trick without the alignment switch over this file
151     SOCKADDR_STORAGE LocalAddress;
152     SOCKADDR_STORAGE RemoteAddress;
153 }
154 
155 // WinHttpTimeFromSystemTime
156 enum DWORD WINHTTP_TIME_FORMAT_BUFSIZE  = 62;
157 
158 // CrackUrl, CombineUrl
159 enum : DWORD {
160     ICU_NO_ENCODE           = 0x20000000,
161     ICU_DECODE              = 0x10000000,
162     ICU_NO_META             = 0x08000000,
163     ICU_ENCODE_SPACES_ONLY  = 0x04000000,
164     ICU_BROWSER_MODE        = 0x02000000,
165     ICU_ENCODE_PERCENT      = 0x00001000
166 }
167 // WinHttpCrackUrl, WinHttpCreateUrl
168 enum : DWORD {
169     ICU_ESCAPE            = 0x80000000,
170     ICU_ESCAPE_AUTHORITY  = 0x00002000,
171     ICU_REJECT_USERPWD    = 0x00004000
172 }
173 enum : DWORD {
174     WINHTTP_ACCESS_TYPE_DEFAULT_PROXY             = 0,
175     WINHTTP_ACCESS_TYPE_NO_PROXY                  = 1,
176     WINHTTP_ACCESS_TYPE_NAMED_PROXY               = 3,
177     WINHTTP_ACCESS_TYPE_AUTOMATIC_PROXY           = 4
178 }
179 // WinHttpOpen 'prettifiers'
180 enum LPCWSTR WINHTTP_NO_PROXY_NAME         = null;
181 enum LPCWSTR WINHTTP_NO_PROXY_BYPASS       = null;
182 
183 enum LPVOID WINHTTP_NO_CLIENT_CERT_CONTEXT = null;
184 
185 // WinHttp{Query|Set}Option
186 enum : DWORD {
187     WINHTTP_FIRST_OPTION                         = WINHTTP_OPTION_CALLBACK,
188 
189     WINHTTP_OPTION_CALLBACK                      = 1,
190     WINHTTP_OPTION_RESOLVE_TIMEOUT               = 2,
191     WINHTTP_OPTION_CONNECT_TIMEOUT               = 3,
192     WINHTTP_OPTION_CONNECT_RETRIES               = 4,
193     WINHTTP_OPTION_SEND_TIMEOUT                  = 5,
194     WINHTTP_OPTION_RECEIVE_TIMEOUT               = 6,
195     WINHTTP_OPTION_RECEIVE_RESPONSE_TIMEOUT      = 7,
196     WINHTTP_OPTION_HANDLE_TYPE                   = 9,
197     WINHTTP_OPTION_READ_BUFFER_SIZE             = 12,
198     WINHTTP_OPTION_WRITE_BUFFER_SIZE            = 13,
199     WINHTTP_OPTION_PARENT_HANDLE                = 21,
200     WINHTTP_OPTION_EXTENDED_ERROR               = 24,
201     WINHTTP_OPTION_SECURITY_FLAGS               = 31,
202     WINHTTP_OPTION_SECURITY_CERTIFICATE_STRUCT  = 32,
203     WINHTTP_OPTION_URL                          = 34,
204     WINHTTP_OPTION_SECURITY_KEY_BITNESS         = 36,
205     WINHTTP_OPTION_PROXY                        = 38,
206     WINHTTP_OPTION_PROXY_RESULT_ENTRY           = 39,
207 
208     WINHTTP_OPTION_USER_AGENT                   = 41,
209     WINHTTP_OPTION_CONTEXT_VALUE                = 45,
210     WINHTTP_OPTION_CLIENT_CERT_CONTEXT          = 47,
211     WINHTTP_OPTION_REQUEST_PRIORITY             = 58,
212     WINHTTP_OPTION_HTTP_VERSION                 = 59,
213     WINHTTP_OPTION_DISABLE_FEATURE              = 63,
214 
215     WINHTTP_OPTION_CODEPAGE                     = 68,
216     WINHTTP_OPTION_MAX_CONNS_PER_SERVER         = 73,
217     WINHTTP_OPTION_MAX_CONNS_PER_1_0_SERVER     = 74,
218     WINHTTP_OPTION_AUTOLOGON_POLICY             = 77,
219     WINHTTP_OPTION_SERVER_CERT_CONTEXT          = 78,
220     WINHTTP_OPTION_ENABLE_FEATURE               = 79,
221     WINHTTP_OPTION_WORKER_THREAD_COUNT          = 80,
222     WINHTTP_OPTION_PASSPORT_COBRANDING_TEXT     = 81,
223     WINHTTP_OPTION_PASSPORT_COBRANDING_URL      = 82,
224     WINHTTP_OPTION_CONFIGURE_PASSPORT_AUTH      = 83,
225     WINHTTP_OPTION_SECURE_PROTOCOLS             = 84,
226     WINHTTP_OPTION_ENABLETRACING                = 85,
227     WINHTTP_OPTION_PASSPORT_SIGN_OUT            = 86,
228     WINHTTP_OPTION_PASSPORT_RETURN_URL          = 87,
229     WINHTTP_OPTION_REDIRECT_POLICY              = 88,
230     WINHTTP_OPTION_MAX_HTTP_AUTOMATIC_REDIRECTS = 89,
231     WINHTTP_OPTION_MAX_HTTP_STATUS_CONTINUE     = 90,
232     WINHTTP_OPTION_MAX_RESPONSE_HEADER_SIZE     = 91,
233     WINHTTP_OPTION_MAX_RESPONSE_DRAIN_SIZE      = 92,
234     WINHTTP_OPTION_CONNECTION_INFO              = 93,
235     WINHTTP_OPTION_CLIENT_CERT_ISSUER_LIST      = 94,
236     WINHTTP_OPTION_SPN                          = 96,
237 
238     WINHTTP_OPTION_GLOBAL_PROXY_CREDS           = 97,
239     WINHTTP_OPTION_GLOBAL_SERVER_CREDS          = 98,
240 
241     WINHTTP_OPTION_UNLOAD_NOTIFY_EVENT            = 99,
242     WINHTTP_OPTION_REJECT_USERPWD_IN_URL          = 100,
243     WINHTTP_OPTION_USE_GLOBAL_SERVER_CREDENTIALS  = 101,
244 
245     WINHTTP_OPTION_RECEIVE_PROXY_CONNECT_RESPONSE = 103,
246     WINHTTP_OPTION_IS_PROXY_CONNECT_RESPONSE      = 104,
247 
248     WINHTTP_OPTION_SERVER_SPN_USED              = 106,
249     WINHTTP_OPTION_PROXY_SPN_USED               = 107,
250 
251     WINHTTP_OPTION_SERVER_CBT                   = 108,
252 
253     WINHTTP_OPTION_UNSAFE_HEADER_PARSING          = 110,
254     WINHTTP_OPTION_ASSURED_NON_BLOCKING_CALLBACKS = 111,
255 
256     WINHTTP_OPTION_UPGRADE_TO_WEB_SOCKET          = 114,
257     WINHTTP_OPTION_WEB_SOCKET_CLOSE_TIMEOUT       = 115,
258     WINHTTP_OPTION_WEB_SOCKET_KEEPALIVE_INTERVAL  = 116,
259 
260     WINHTTP_OPTION_DECOMPRESSION                  = 118,
261 
262     WINHTTP_OPTION_WEB_SOCKET_RECEIVE_BUFFER_SIZE = 122,
263     WINHTTP_OPTION_WEB_SOCKET_SEND_BUFFER_SIZE    = 123,
264 
265     //WINHTTP_LAST_OPTION => Moved outside of enum - static if () constraints within enums
266 
267     WINHTTP_OPTION_USERNAME                      = 0x1000,
268     WINHTTP_OPTION_PASSWORD                      = 0x1001,
269     WINHTTP_OPTION_PROXY_USERNAME                = 0x1002,
270     WINHTTP_OPTION_PROXY_PASSWORD                = 0x1003,
271 
272     WINHTTP_CONNS_PER_SERVER_UNLIMITED    = 0xFFFFFFFF,
273 
274     WINHTTP_AUTOLOGON_SECURITY_LEVEL_MEDIUM = 0,
275     WINHTTP_AUTOLOGON_SECURITY_LEVEL_LOW    = 1,
276     WINHTTP_AUTOLOGON_SECURITY_LEVEL_HIGH   = 2,
277 
278     WINHTTP_AUTOLOGON_SECURITY_LEVEL_DEFAULT = WINHTTP_AUTOLOGON_SECURITY_LEVEL_MEDIUM,
279 
280     WINHTTP_OPTION_REDIRECT_POLICY_NEVER                      = 0,
281     WINHTTP_OPTION_REDIRECT_POLICY_DISALLOW_HTTPS_TO_HTTP     = 1,
282     WINHTTP_OPTION_REDIRECT_POLICY_ALWAYS                     = 2,
283 
284     WINHTTP_OPTION_REDIRECT_POLICY_LAST      = WINHTTP_OPTION_REDIRECT_POLICY_ALWAYS,
285     WINHTTP_OPTION_REDIRECT_POLICY_DEFAULT   = WINHTTP_OPTION_REDIRECT_POLICY_DISALLOW_HTTPS_TO_HTTP,
286 
287     WINHTTP_DISABLE_PASSPORT_AUTH    = 0x00000000,
288     WINHTTP_ENABLE_PASSPORT_AUTH     = 0x10000000,
289     WINHTTP_DISABLE_PASSPORT_KEYRING = 0x20000000,
290     WINHTTP_ENABLE_PASSPORT_KEYRING  = 0x40000000,
291 
292     WINHTTP_DISABLE_COOKIES                   = 0x00000001,
293     WINHTTP_DISABLE_REDIRECTS                 = 0x00000002,
294     WINHTTP_DISABLE_AUTHENTICATION            = 0x00000004,
295     WINHTTP_DISABLE_KEEP_ALIVE                = 0x00000008,
296 
297     WINHTTP_ENABLE_SSL_REVOCATION             = 0x00000001,
298     WINHTTP_ENABLE_SSL_REVERT_IMPERSONATION   = 0x00000002,
299 
300     WINHTTP_DISABLE_SPN_SERVER_PORT           = 0x00000000,
301     WINHTTP_ENABLE_SPN_SERVER_PORT            = 0x00000001,
302     WINHTTP_OPTION_SPN_MASK                   = WINHTTP_ENABLE_SPN_SERVER_PORT
303 }
304 
305 // Windows 8.1 SDK:
306 static if (_WIN32_WINNT >= 0x602) {
307     enum DWORD WINHTTP_LAST_OPTION            = WINHTTP_OPTION_WEB_SOCKET_SEND_BUFFER_SIZE;
308 } else {    // Windows 7.0A SDK:
309     enum DWORD WINHTTP_LAST_OPTION            = WINHTTP_OPTION_SERVER_CBT;
310 }
311 
312 enum : DWORD {
313     WINHTTP_DECOMPRESSION_FLAG_GZIP    = 0x00000001,
314     WINHTTP_DECOMPRESSION_FLAG_DEFLATE = 0x00000002,
315     WINHTTP_DECOMPRESSION_FLAG_ALL = (WINHTTP_DECOMPRESSION_FLAG_GZIP | WINHTTP_DECOMPRESSION_FLAG_DEFLATE)
316 }
317 
318 struct WINHTTP_CREDS {
319     LPSTR lpszUserName;
320     LPSTR lpszPassword;
321     LPSTR lpszRealm;
322     DWORD dwAuthScheme;
323     LPSTR lpszHostName;
324     DWORD dwPort;
325 }
326 alias PWINHTTP_CREDS = WINHTTP_CREDS*;
327 
328 struct WINHTTP_CREDS_EX {
329     LPSTR lpszUserName;
330     LPSTR lpszPassword;
331     LPSTR lpszRealm;
332     DWORD dwAuthScheme;
333     LPSTR lpszHostName;
334     DWORD dwPort;
335     LPSTR lpszUrl;
336 }
337 alias PWINHTTP_CREDS_EX = WINHTTP_CREDS_EX*;
338 
339 enum : DWORD {
340     WINHTTP_HANDLE_TYPE_SESSION                = 1,
341     WINHTTP_HANDLE_TYPE_CONNECT                = 2,
342     WINHTTP_HANDLE_TYPE_REQUEST                = 3,
343 
344     WINHTTP_AUTH_SCHEME_BASIC      = 0x00000001,
345     WINHTTP_AUTH_SCHEME_NTLM       = 0x00000002,
346     WINHTTP_AUTH_SCHEME_PASSPORT   = 0x00000004,
347     WINHTTP_AUTH_SCHEME_DIGEST     = 0x00000008,
348     WINHTTP_AUTH_SCHEME_NEGOTIATE  = 0x00000010,
349 
350     WINHTTP_AUTH_TARGET_SERVER = 0x00000000,
351     WINHTTP_AUTH_TARGET_PROXY  = 0x00000001,
352 
353     SECURITY_FLAG_SECURE                    = 0x00000001,
354     SECURITY_FLAG_STRENGTH_WEAK             = 0x10000000,
355     SECURITY_FLAG_STRENGTH_MEDIUM           = 0x40000000,
356     SECURITY_FLAG_STRENGTH_STRONG           = 0x20000000,
357 
358     WINHTTP_CALLBACK_STATUS_FLAG_CERT_REV_FAILED         = 0x00000001,
359     WINHTTP_CALLBACK_STATUS_FLAG_INVALID_CERT            = 0x00000002,
360     WINHTTP_CALLBACK_STATUS_FLAG_CERT_REVOKED            = 0x00000004,
361     WINHTTP_CALLBACK_STATUS_FLAG_INVALID_CA              = 0x00000008,
362     WINHTTP_CALLBACK_STATUS_FLAG_CERT_CN_INVALID         = 0x00000010,
363     WINHTTP_CALLBACK_STATUS_FLAG_CERT_DATE_INVALID       = 0x00000020,
364     WINHTTP_CALLBACK_STATUS_FLAG_CERT_WRONG_USAGE        = 0x00000040,
365     WINHTTP_CALLBACK_STATUS_FLAG_SECURITY_CHANNEL_ERROR  = 0x80000000,
366 
367     WINHTTP_FLAG_SECURE_PROTOCOL_SSL2   = 0x00000008,
368     WINHTTP_FLAG_SECURE_PROTOCOL_SSL3   = 0x00000020,
369     WINHTTP_FLAG_SECURE_PROTOCOL_TLS1   = 0x00000080,
370     WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_1 = 0x00000200,
371     WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_2 = 0x00000800,
372     WINHTTP_FLAG_SECURE_PROTOCOL_ALL    = (WINHTTP_FLAG_SECURE_PROTOCOL_SSL2 |
373                                                  WINHTTP_FLAG_SECURE_PROTOCOL_SSL3 |
374                                                  WINHTTP_FLAG_SECURE_PROTOCOL_TLS1)
375 }
376 
377 alias extern(Windows) int fnWINHTTP_STATUS_CALLBACK(HINTERNET hInternet, DWORD_PTR dwContext,
378                           DWORD dwInternetStatus, LPVOID lpvStatusInformation,DWORD dwStatusInformationLength);
379 alias WINHTTP_STATUS_CALLBACK = fnWINHTTP_STATUS_CALLBACK*;
380 alias LPWINHTTP_STATUS_CALLBACK = WINHTTP_STATUS_CALLBACK*;
381 
382 enum : DWORD {
383     WINHTTP_CALLBACK_STATUS_RESOLVING_NAME          = 0x00000001,
384     WINHTTP_CALLBACK_STATUS_NAME_RESOLVED           = 0x00000002,
385     WINHTTP_CALLBACK_STATUS_CONNECTING_TO_SERVER    = 0x00000004,
386     WINHTTP_CALLBACK_STATUS_CONNECTED_TO_SERVER     = 0x00000008,
387     WINHTTP_CALLBACK_STATUS_SENDING_REQUEST         = 0x00000010,
388     WINHTTP_CALLBACK_STATUS_REQUEST_SENT            = 0x00000020,
389     WINHTTP_CALLBACK_STATUS_RECEIVING_RESPONSE      = 0x00000040,
390     WINHTTP_CALLBACK_STATUS_RESPONSE_RECEIVED       = 0x00000080,
391     WINHTTP_CALLBACK_STATUS_CLOSING_CONNECTION      = 0x00000100,
392     WINHTTP_CALLBACK_STATUS_CONNECTION_CLOSED       = 0x00000200,
393     WINHTTP_CALLBACK_STATUS_HANDLE_CREATED          = 0x00000400,
394     WINHTTP_CALLBACK_STATUS_HANDLE_CLOSING          = 0x00000800,
395     WINHTTP_CALLBACK_STATUS_DETECTING_PROXY         = 0x00001000,
396     WINHTTP_CALLBACK_STATUS_REDIRECT                = 0x00004000,
397     WINHTTP_CALLBACK_STATUS_INTERMEDIATE_RESPONSE   = 0x00008000,
398     WINHTTP_CALLBACK_STATUS_SECURE_FAILURE          = 0x00010000,
399     WINHTTP_CALLBACK_STATUS_HEADERS_AVAILABLE       = 0x00020000,
400     WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE          = 0x00040000,
401     WINHTTP_CALLBACK_STATUS_READ_COMPLETE           = 0x00080000,
402     WINHTTP_CALLBACK_STATUS_WRITE_COMPLETE          = 0x00100000,
403     WINHTTP_CALLBACK_STATUS_REQUEST_ERROR           = 0x00200000,
404     WINHTTP_CALLBACK_STATUS_SENDREQUEST_COMPLETE    = 0x00400000
405 }
406 
407 enum : DWORD {
408     WINHTTP_CALLBACK_STATUS_GETPROXYFORURL_COMPLETE = 0x01000000,
409     WINHTTP_CALLBACK_STATUS_CLOSE_COMPLETE          = 0x02000000,
410     WINHTTP_CALLBACK_STATUS_SHUTDOWN_COMPLETE       = 0x04000000
411 }
412 
413 enum : DWORD {
414     API_RECEIVE_RESPONSE        = 1,
415     API_QUERY_DATA_AVAILABLE    = 2,
416     API_READ_DATA               = 3,
417     API_WRITE_DATA              = 4,
418     API_SEND_REQUEST            = 5
419 }
420 
421 enum : DWORD {
422     WINHTTP_CALLBACK_FLAG_RESOLVE_NAME            = (WINHTTP_CALLBACK_STATUS_RESOLVING_NAME | WINHTTP_CALLBACK_STATUS_NAME_RESOLVED),
423     WINHTTP_CALLBACK_FLAG_CONNECT_TO_SERVER       = (WINHTTP_CALLBACK_STATUS_CONNECTING_TO_SERVER | WINHTTP_CALLBACK_STATUS_CONNECTED_TO_SERVER),
424     WINHTTP_CALLBACK_FLAG_SEND_REQUEST            = (WINHTTP_CALLBACK_STATUS_SENDING_REQUEST | WINHTTP_CALLBACK_STATUS_REQUEST_SENT),
425     WINHTTP_CALLBACK_FLAG_RECEIVE_RESPONSE        = (WINHTTP_CALLBACK_STATUS_RECEIVING_RESPONSE | WINHTTP_CALLBACK_STATUS_RESPONSE_RECEIVED),
426     WINHTTP_CALLBACK_FLAG_CLOSE_CONNECTION        = (WINHTTP_CALLBACK_STATUS_CLOSING_CONNECTION | WINHTTP_CALLBACK_STATUS_CONNECTION_CLOSED),
427     WINHTTP_CALLBACK_FLAG_HANDLES                 = (WINHTTP_CALLBACK_STATUS_HANDLE_CREATED | WINHTTP_CALLBACK_STATUS_HANDLE_CLOSING),
428     WINHTTP_CALLBACK_FLAG_DETECTING_PROXY         = WINHTTP_CALLBACK_STATUS_DETECTING_PROXY,
429     WINHTTP_CALLBACK_FLAG_REDIRECT                = WINHTTP_CALLBACK_STATUS_REDIRECT,
430     WINHTTP_CALLBACK_FLAG_INTERMEDIATE_RESPONSE   = WINHTTP_CALLBACK_STATUS_INTERMEDIATE_RESPONSE,
431     WINHTTP_CALLBACK_FLAG_SECURE_FAILURE          = WINHTTP_CALLBACK_STATUS_SECURE_FAILURE,
432     WINHTTP_CALLBACK_FLAG_SENDREQUEST_COMPLETE    = WINHTTP_CALLBACK_STATUS_SENDREQUEST_COMPLETE,
433     WINHTTP_CALLBACK_FLAG_HEADERS_AVAILABLE       = WINHTTP_CALLBACK_STATUS_HEADERS_AVAILABLE,
434     WINHTTP_CALLBACK_FLAG_DATA_AVAILABLE          = WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE,
435     WINHTTP_CALLBACK_FLAG_READ_COMPLETE           = WINHTTP_CALLBACK_STATUS_READ_COMPLETE,
436     WINHTTP_CALLBACK_FLAG_WRITE_COMPLETE          = WINHTTP_CALLBACK_STATUS_WRITE_COMPLETE,
437     WINHTTP_CALLBACK_FLAG_REQUEST_ERROR           = WINHTTP_CALLBACK_STATUS_REQUEST_ERROR
438 }
439 
440 enum DWORD WINHTTP_CALLBACK_FLAG_GETPROXYFORURL_COMPLETE  = WINHTTP_CALLBACK_STATUS_GETPROXYFORURL_COMPLETE;
441 
442 // Windows 8+/2012+
443 static if (_WIN32_WINNT >= 0x602)   {
444   enum DWORD WINHTTP_CALLBACK_FLAG_ALL_COMPLETIONS        =  (WINHTTP_CALLBACK_STATUS_SENDREQUEST_COMPLETE
445                                                         | WINHTTP_CALLBACK_STATUS_HEADERS_AVAILABLE
446                                                         | WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE
447                                                         | WINHTTP_CALLBACK_STATUS_READ_COMPLETE
448                                                         | WINHTTP_CALLBACK_STATUS_WRITE_COMPLETE
449                                                         | WINHTTP_CALLBACK_STATUS_REQUEST_ERROR);
450 } else {
451   enum DWORD WINHTTP_CALLBACK_FLAG_ALL_COMPLETIONS        =  (WINHTTP_CALLBACK_STATUS_SENDREQUEST_COMPLETE
452                                                         | WINHTTP_CALLBACK_STATUS_HEADERS_AVAILABLE
453                                                         | WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE
454                                                         | WINHTTP_CALLBACK_STATUS_READ_COMPLETE
455                                                         | WINHTTP_CALLBACK_STATUS_WRITE_COMPLETE
456                                                         | WINHTTP_CALLBACK_STATUS_REQUEST_ERROR
457                                                         | WINHTTP_CALLBACK_STATUS_GETPROXYFORURL_COMPLETE);
458 }
459 
460 enum DWORD  WINHTTP_CALLBACK_FLAG_ALL_NOTIFICATIONS      =  0xffffffff;
461 
462 enum WINHTTP_INVALID_STATUS_CALLBACK        = (cast(WINHTTP_STATUS_CALLBACK)(-1L));
463 
464 enum : DWORD {
465     WINHTTP_QUERY_MIME_VERSION               = 0,
466     WINHTTP_QUERY_CONTENT_TYPE               = 1,
467     WINHTTP_QUERY_CONTENT_TRANSFER_ENCODING  = 2,
468     WINHTTP_QUERY_CONTENT_ID                 = 3,
469     WINHTTP_QUERY_CONTENT_DESCRIPTION        = 4,
470     WINHTTP_QUERY_CONTENT_LENGTH             = 5,
471     WINHTTP_QUERY_CONTENT_LANGUAGE           = 6,
472     WINHTTP_QUERY_ALLOW                      = 7,
473     WINHTTP_QUERY_PUBLIC                     = 8,
474     WINHTTP_QUERY_DATE                       = 9,
475     WINHTTP_QUERY_EXPIRES                    = 10,
476     WINHTTP_QUERY_LAST_MODIFIED              = 11,
477     WINHTTP_QUERY_MESSAGE_ID                 = 12,
478     WINHTTP_QUERY_URI                        = 13,
479     WINHTTP_QUERY_DERIVED_FROM               = 14,
480     WINHTTP_QUERY_COST                       = 15,
481     WINHTTP_QUERY_LINK                       = 16,
482     WINHTTP_QUERY_PRAGMA                     = 17,
483     WINHTTP_QUERY_VERSION                    = 18,
484     WINHTTP_QUERY_STATUS_CODE                = 19,
485     WINHTTP_QUERY_STATUS_TEXT                = 20,
486     WINHTTP_QUERY_RAW_HEADERS                = 21,
487     WINHTTP_QUERY_RAW_HEADERS_CRLF           = 22,
488     WINHTTP_QUERY_CONNECTION                 = 23,
489     WINHTTP_QUERY_ACCEPT                     = 24,
490     WINHTTP_QUERY_ACCEPT_CHARSET             = 25,
491     WINHTTP_QUERY_ACCEPT_ENCODING            = 26,
492     WINHTTP_QUERY_ACCEPT_LANGUAGE            = 27,
493     WINHTTP_QUERY_AUTHORIZATION              = 28,
494     WINHTTP_QUERY_CONTENT_ENCODING           = 29,
495     WINHTTP_QUERY_FORWARDED                  = 30,
496     WINHTTP_QUERY_FROM                       = 31,
497     WINHTTP_QUERY_IF_MODIFIED_SINCE          = 32,
498     WINHTTP_QUERY_LOCATION                   = 33,
499     WINHTTP_QUERY_ORIG_URI                   = 34,
500     WINHTTP_QUERY_REFERER                    = 35,
501     WINHTTP_QUERY_RETRY_AFTER                = 36,
502     WINHTTP_QUERY_SERVER                     = 37,
503     WINHTTP_QUERY_TITLE                      = 38,
504     WINHTTP_QUERY_USER_AGENT                 = 39,
505     WINHTTP_QUERY_WWW_AUTHENTICATE           = 40,
506     WINHTTP_QUERY_PROXY_AUTHENTICATE         = 41,
507     WINHTTP_QUERY_ACCEPT_RANGES              = 42,
508     WINHTTP_QUERY_SET_COOKIE                 = 43,
509     WINHTTP_QUERY_COOKIE                     = 44,
510     WINHTTP_QUERY_REQUEST_METHOD             = 45,
511     WINHTTP_QUERY_REFRESH                    = 46,
512     WINHTTP_QUERY_CONTENT_DISPOSITION        = 47,
513 
514     // HTTP 1.1 defined headers
515 
516     WINHTTP_QUERY_AGE                        = 48,
517     WINHTTP_QUERY_CACHE_CONTROL              = 49,
518     WINHTTP_QUERY_CONTENT_BASE               = 50,
519     WINHTTP_QUERY_CONTENT_LOCATION           = 51,
520     WINHTTP_QUERY_CONTENT_MD5                = 52,
521     WINHTTP_QUERY_CONTENT_RANGE              = 53,
522     WINHTTP_QUERY_ETAG                       = 54,
523     WINHTTP_QUERY_HOST                       = 55,
524     WINHTTP_QUERY_IF_MATCH                   = 56,
525     WINHTTP_QUERY_IF_NONE_MATCH              = 57,
526     WINHTTP_QUERY_IF_RANGE                   = 58,
527     WINHTTP_QUERY_IF_UNMODIFIED_SINCE        = 59,
528     WINHTTP_QUERY_MAX_FORWARDS               = 60,
529     WINHTTP_QUERY_PROXY_AUTHORIZATION        = 61,
530     WINHTTP_QUERY_RANGE                      = 62,
531     WINHTTP_QUERY_TRANSFER_ENCODING          = 63,
532     WINHTTP_QUERY_UPGRADE                    = 64,
533     WINHTTP_QUERY_VARY                       = 65,
534     WINHTTP_QUERY_VIA                        = 66,
535     WINHTTP_QUERY_WARNING                    = 67,
536     WINHTTP_QUERY_EXPECT                     = 68,
537     WINHTTP_QUERY_PROXY_CONNECTION           = 69,
538     WINHTTP_QUERY_UNLESS_MODIFIED_SINCE      = 70,
539 
540     WINHTTP_QUERY_PROXY_SUPPORT              = 75,
541     WINHTTP_QUERY_AUTHENTICATION_INFO        = 76,
542     WINHTTP_QUERY_PASSPORT_URLS              = 77,
543     WINHTTP_QUERY_PASSPORT_CONFIG            = 78,
544 
545     WINHTTP_QUERY_MAX                        = 78,
546 
547     WINHTTP_QUERY_CUSTOM                     = 65535,
548 
549     WINHTTP_QUERY_FLAG_REQUEST_HEADERS         = 0x80000000,
550 
551     WINHTTP_QUERY_FLAG_SYSTEMTIME              = 0x40000000,
552 
553     WINHTTP_QUERY_FLAG_NUMBER                  = 0x20000000
554 }
555 
556 enum : DWORD {
557     HTTP_STATUS_CONTINUE            = 100,
558     HTTP_STATUS_SWITCH_PROTOCOLS    = 101,
559 
560     HTTP_STATUS_OK                  = 200,
561     HTTP_STATUS_CREATED             = 201,
562     HTTP_STATUS_ACCEPTED            = 202,
563     HTTP_STATUS_PARTIAL             = 203,
564     HTTP_STATUS_NO_CONTENT          = 204,
565     HTTP_STATUS_RESET_CONTENT       = 205,
566     HTTP_STATUS_PARTIAL_CONTENT     = 206,
567     HTTP_STATUS_WEBDAV_MULTI_STATUS = 207,
568 
569     HTTP_STATUS_AMBIGUOUS           = 300,
570     HTTP_STATUS_MOVED               = 301,
571     HTTP_STATUS_REDIRECT            = 302,
572     HTTP_STATUS_REDIRECT_METHOD     = 303,
573     HTTP_STATUS_NOT_MODIFIED        = 304,
574     HTTP_STATUS_USE_PROXY           = 305,
575     HTTP_STATUS_REDIRECT_KEEP_VERB  = 307,
576 
577     HTTP_STATUS_BAD_REQUEST       = 400,
578     HTTP_STATUS_DENIED            = 401,
579     HTTP_STATUS_PAYMENT_REQ       = 402,
580     HTTP_STATUS_FORBIDDEN         = 403,
581     HTTP_STATUS_NOT_FOUND         = 404,
582     HTTP_STATUS_BAD_METHOD        = 405,
583     HTTP_STATUS_NONE_ACCEPTABLE   = 406,
584     HTTP_STATUS_PROXY_AUTH_REQ    = 407,
585     HTTP_STATUS_REQUEST_TIMEOUT   = 408,
586     HTTP_STATUS_CONFLICT          = 409,
587     HTTP_STATUS_GONE              = 410,
588     HTTP_STATUS_LENGTH_REQUIRED   = 411,
589     HTTP_STATUS_PRECOND_FAILED    = 412,
590     HTTP_STATUS_REQUEST_TOO_LARGE = 413,
591     HTTP_STATUS_URI_TOO_LONG      = 414,
592     HTTP_STATUS_UNSUPPORTED_MEDIA = 415,
593     HTTP_STATUS_RETRY_WITH        = 449,
594 
595     HTTP_STATUS_SERVER_ERROR      = 500,
596     HTTP_STATUS_NOT_SUPPORTED     = 501,
597     HTTP_STATUS_BAD_GATEWAY       = 502,
598     HTTP_STATUS_SERVICE_UNAVAIL   = 503,
599     HTTP_STATUS_GATEWAY_TIMEOUT   = 504,
600     HTTP_STATUS_VERSION_NOT_SUP   = 505,
601 
602     HTTP_STATUS_FIRST             = HTTP_STATUS_CONTINUE,
603     HTTP_STATUS_LAST              = HTTP_STATUS_VERSION_NOT_SUP
604 }
605 
606 enum LPCWSTR WINHTTP_NO_REFERER             = null;
607 enum LPCWSTR * WINHTTP_DEFAULT_ACCEPT_TYPES = null;
608 
609 enum : DWORD {
610     WINHTTP_ADDREQ_INDEX_MASK     = 0x0000FFFF,
611     WINHTTP_ADDREQ_FLAGS_MASK     = 0xFFFF0000,
612 
613     WINHTTP_ADDREQ_FLAG_ADD_IF_NEW = 0x10000000,
614 
615     WINHTTP_ADDREQ_FLAG_ADD        = 0x20000000,
616 
617     WINHTTP_ADDREQ_FLAG_COALESCE_WITH_COMMA       = 0x40000000,
618     WINHTTP_ADDREQ_FLAG_COALESCE_WITH_SEMICOLON   = 0x01000000,
619     WINHTTP_ADDREQ_FLAG_COALESCE                  = WINHTTP_ADDREQ_FLAG_COALESCE_WITH_COMMA,
620 
621     WINHTTP_ADDREQ_FLAG_REPLACE    = 0x80000000,
622 
623     WINHTTP_IGNORE_REQUEST_TOTAL_LENGTH = 0
624 }
625 
626 enum LPCWSTR WINHTTP_NO_ADDITIONAL_HEADERS = null;
627 enum LPVOID WINHTTP_NO_REQUEST_DATA        = null;
628 
629 enum LPCWSTR WINHTTP_HEADER_NAME_BY_INDEX  = null;
630 enum LPVOID WINHTTP_NO_OUTPUT_BUFFER       = null;
631 enum LPDWORD WINHTTP_NO_HEADER_INDEX       = null;
632 
633 struct WINHTTP_CURRENT_USER_IE_PROXY_CONFIG {
634     BOOL    fAutoDetect;
635     LPWSTR  lpszAutoConfigUrl;
636     LPWSTR  lpszProxy;
637     LPWSTR  lpszProxyBypass;
638 }
639 
640 // WinHttp API error returns
641 enum : DWORD {
642     WINHTTP_ERROR_BASE                   = 12000,
643 
644     ERROR_WINHTTP_OUT_OF_HANDLES         = (WINHTTP_ERROR_BASE + 1),
645     ERROR_WINHTTP_TIMEOUT                = (WINHTTP_ERROR_BASE + 2),
646     ERROR_WINHTTP_INTERNAL_ERROR         = (WINHTTP_ERROR_BASE + 4),
647     ERROR_WINHTTP_INVALID_URL            = (WINHTTP_ERROR_BASE + 5),
648     ERROR_WINHTTP_UNRECOGNIZED_SCHEME    = (WINHTTP_ERROR_BASE + 6),
649     ERROR_WINHTTP_NAME_NOT_RESOLVED      = (WINHTTP_ERROR_BASE + 7),
650     ERROR_WINHTTP_INVALID_OPTION         = (WINHTTP_ERROR_BASE + 9),
651     ERROR_WINHTTP_OPTION_NOT_SETTABLE    = (WINHTTP_ERROR_BASE + 11),
652     ERROR_WINHTTP_SHUTDOWN               = (WINHTTP_ERROR_BASE + 12),
653 
654     ERROR_WINHTTP_LOGIN_FAILURE          = (WINHTTP_ERROR_BASE + 15),
655     ERROR_WINHTTP_OPERATION_CANCELLED    = (WINHTTP_ERROR_BASE + 17),
656     ERROR_WINHTTP_INCORRECT_HANDLE_TYPE  = (WINHTTP_ERROR_BASE + 18),
657     ERROR_WINHTTP_INCORRECT_HANDLE_STATE = (WINHTTP_ERROR_BASE + 19),
658     ERROR_WINHTTP_CANNOT_CONNECT         = (WINHTTP_ERROR_BASE + 29),
659     ERROR_WINHTTP_CONNECTION_ERROR       = (WINHTTP_ERROR_BASE + 30),
660     ERROR_WINHTTP_RESEND_REQUEST         = (WINHTTP_ERROR_BASE + 32),
661 
662     ERROR_WINHTTP_CLIENT_AUTH_CERT_NEEDED = (WINHTTP_ERROR_BASE + 44),
663 
664     ERROR_WINHTTP_CANNOT_CALL_BEFORE_OPEN = (WINHTTP_ERROR_BASE + 100),
665     ERROR_WINHTTP_CANNOT_CALL_BEFORE_SEND = (WINHTTP_ERROR_BASE + 101),
666     ERROR_WINHTTP_CANNOT_CALL_AFTER_SEND  = (WINHTTP_ERROR_BASE + 102),
667     ERROR_WINHTTP_CANNOT_CALL_AFTER_OPEN  = (WINHTTP_ERROR_BASE + 103),
668 
669     ERROR_WINHTTP_HEADER_NOT_FOUND           = (WINHTTP_ERROR_BASE + 150),
670     ERROR_WINHTTP_INVALID_SERVER_RESPONSE    = (WINHTTP_ERROR_BASE + 152),
671     ERROR_WINHTTP_INVALID_HEADER             = (WINHTTP_ERROR_BASE + 153),
672     ERROR_WINHTTP_INVALID_QUERY_REQUEST      = (WINHTTP_ERROR_BASE + 154),
673     ERROR_WINHTTP_HEADER_ALREADY_EXISTS      = (WINHTTP_ERROR_BASE + 155),
674     ERROR_WINHTTP_REDIRECT_FAILED            = (WINHTTP_ERROR_BASE + 156),
675 
676     ERROR_WINHTTP_AUTO_PROXY_SERVICE_ERROR  = (WINHTTP_ERROR_BASE + 178),
677     ERROR_WINHTTP_BAD_AUTO_PROXY_SCRIPT     = (WINHTTP_ERROR_BASE + 166),
678     ERROR_WINHTTP_UNABLE_TO_DOWNLOAD_SCRIPT = (WINHTTP_ERROR_BASE + 167),
679     ERROR_WINHTTP_UNHANDLED_SCRIPT_TYPE     = (WINHTTP_ERROR_BASE + 176),
680     ERROR_WINHTTP_SCRIPT_EXECUTION_ERROR    = (WINHTTP_ERROR_BASE + 177),
681 
682     ERROR_WINHTTP_NOT_INITIALIZED        = (WINHTTP_ERROR_BASE + 172),
683     ERROR_WINHTTP_SECURE_FAILURE         = (WINHTTP_ERROR_BASE + 175),
684 
685     ERROR_WINHTTP_SECURE_CERT_DATE_INVALID  = (WINHTTP_ERROR_BASE + 37),
686     ERROR_WINHTTP_SECURE_CERT_CN_INVALID    = (WINHTTP_ERROR_BASE + 38),
687     ERROR_WINHTTP_SECURE_INVALID_CA         = (WINHTTP_ERROR_BASE + 45),
688     ERROR_WINHTTP_SECURE_CERT_REV_FAILED    = (WINHTTP_ERROR_BASE + 57),
689     ERROR_WINHTTP_SECURE_CHANNEL_ERROR      = (WINHTTP_ERROR_BASE + 157),
690     ERROR_WINHTTP_SECURE_INVALID_CERT       = (WINHTTP_ERROR_BASE + 169),
691     ERROR_WINHTTP_SECURE_CERT_REVOKED       = (WINHTTP_ERROR_BASE + 170),
692     ERROR_WINHTTP_SECURE_CERT_WRONG_USAGE   = (WINHTTP_ERROR_BASE + 179),
693 
694     ERROR_WINHTTP_AUTODETECTION_FAILED                  = (WINHTTP_ERROR_BASE + 180),
695     ERROR_WINHTTP_HEADER_COUNT_EXCEEDED                 = (WINHTTP_ERROR_BASE + 181),
696     ERROR_WINHTTP_HEADER_SIZE_OVERFLOW                  = (WINHTTP_ERROR_BASE + 182),
697     ERROR_WINHTTP_CHUNKED_ENCODING_HEADER_SIZE_OVERFLOW = (WINHTTP_ERROR_BASE + 183),
698     ERROR_WINHTTP_RESPONSE_DRAIN_OVERFLOW               = (WINHTTP_ERROR_BASE + 184),
699     ERROR_WINHTTP_CLIENT_CERT_NO_PRIVATE_KEY            = (WINHTTP_ERROR_BASE + 185),
700     ERROR_WINHTTP_CLIENT_CERT_NO_ACCESS_PRIVATE_KEY     = (WINHTTP_ERROR_BASE + 186),
701 
702     WINHTTP_ERROR_LAST                                  = (WINHTTP_ERROR_BASE + 186)
703 }
704 
705 enum : DWORD {
706     WINHTTP_RESET_STATE                  = 0x00000001,
707     WINHTTP_RESET_SWPAD_CURRENT_NETWORK  = 0x00000002,
708     WINHTTP_RESET_SWPAD_ALL              = 0x00000004,
709     WINHTTP_RESET_SCRIPT_CACHE           = 0x00000008,
710     WINHTTP_RESET_ALL                    = 0x0000FFFF,
711     WINHTTP_RESET_NOTIFY_NETWORK_CHANGED = 0x00010000,
712     WINHTTP_RESET_OUT_OF_PROC            = 0x00020000
713 }
714 
715 enum : DWORD {
716     WINHTTP_WEB_SOCKET_MAX_CLOSE_REASON_LENGTH = 123,
717     WINHTTP_WEB_SOCKET_MIN_KEEPALIVE_VALUE     = 15000
718 }
719 
720 // Version(Windows8) || Version(Windows2012):
721 static if (_WIN32_WINNT >= 0x602)
722 {
723     enum WINHTTP_WEB_SOCKET_OPERATION : DWORD
724     {
725         WINHTTP_WEB_SOCKET_SEND_OPERATION                   = 0,
726         WINHTTP_WEB_SOCKET_RECEIVE_OPERATION                = 1,
727         WINHTTP_WEB_SOCKET_CLOSE_OPERATION                  = 2,
728         WINHTTP_WEB_SOCKET_SHUTDOWN_OPERATION               = 3
729     }
730     enum WINHTTP_WEB_SOCKET_BUFFER_TYPE : DWORD
731     {
732         WINHTTP_WEB_SOCKET_BINARY_MESSAGE_BUFFER_TYPE       = 0,
733         WINHTTP_WEB_SOCKET_BINARY_FRAGMENT_BUFFER_TYPE      = 1,
734         WINHTTP_WEB_SOCKET_UTF8_MESSAGE_BUFFER_TYPE         = 2,
735         WINHTTP_WEB_SOCKET_UTF8_FRAGMENT_BUFFER_TYPE        = 3,
736         WINHTTP_WEB_SOCKET_CLOSE_BUFFER_TYPE                = 4
737     }
738     enum WINHTTP_WEB_SOCKET_CLOSE_STATUS : DWORD
739     {
740         WINHTTP_WEB_SOCKET_SUCCESS_CLOSE_STATUS                = 1000,
741         WINHTTP_WEB_SOCKET_ENDPOINT_TERMINATED_CLOSE_STATUS    = 1001,
742         WINHTTP_WEB_SOCKET_PROTOCOL_ERROR_CLOSE_STATUS         = 1002,
743         WINHTTP_WEB_SOCKET_INVALID_DATA_TYPE_CLOSE_STATUS      = 1003,
744         WINHTTP_WEB_SOCKET_EMPTY_CLOSE_STATUS                  = 1005,
745         WINHTTP_WEB_SOCKET_ABORTED_CLOSE_STATUS                = 1006,
746         WINHTTP_WEB_SOCKET_INVALID_PAYLOAD_CLOSE_STATUS        = 1007,
747         WINHTTP_WEB_SOCKET_POLICY_VIOLATION_CLOSE_STATUS       = 1008,
748         WINHTTP_WEB_SOCKET_MESSAGE_TOO_BIG_CLOSE_STATUS        = 1009,
749         WINHTTP_WEB_SOCKET_UNSUPPORTED_EXTENSIONS_CLOSE_STATUS = 1010,
750         WINHTTP_WEB_SOCKET_SERVER_ERROR_CLOSE_STATUS           = 1011,
751         WINHTTP_WEB_SOCKET_SECURE_HANDSHAKE_ERROR_CLOSE_STATUS = 1015
752     }
753     struct WINHTTP_PROXY_RESULT_ENTRY {
754         BOOL            fProxy;
755         BOOL            fBypass;
756         INTERNET_SCHEME ProxyScheme;
757         PWSTR           pwszProxy;
758         INTERNET_PORT   ProxyPort;
759     }
760     struct WINHTTP_PROXY_RESULT {
761         DWORD cEntries;
762         WINHTTP_PROXY_RESULT_ENTRY *pEntries;
763     }
764     struct WINHTTP_WEB_SOCKET_ASYNC_RESULT {
765         WINHTTP_ASYNC_RESULT AsyncResult;
766         WINHTTP_WEB_SOCKET_OPERATION Operation;
767     }
768     struct WINHTTP_WEB_SOCKET_STATUS {
769         DWORD dwBytesTransferred;
770         WINHTTP_WEB_SOCKET_BUFFER_TYPE eBufferType;
771     }
772 }
773 
774 
775 extern (Windows) {
776     BOOL WinHttpAddRequestHeaders(HINTERNET hRequest, LPCWSTR pwszHeaders, DWORD dwHeadersLength, DWORD dwModifiers);
777 
778     BOOL WinHttpCheckPlatform();
779 
780     BOOL WinHttpCloseHandle(HINTERNET hInternet);
781 
782     HINTERNET WinHttpConnect(HINTERNET hSession, LPCWSTR pswzServerName, INTERNET_PORT nServerPort, DWORD dwReserved);
783 
784     BOOL WinHttpCrackUrl(LPCWSTR pwszUrl, DWORD dwUrlLength, DWORD dwFlags, LPURL_COMPONENTS lpUrlComponents);
785 
786     BOOL WinHttpCreateUrl(LPURL_COMPONENTS lpUrlComponents, DWORD dwFlags, LPWSTR pwszUrl, LPDWORD lpdwUrlLength);
787     BOOL WinHttpDetectAutoProxyConfigUrl(DWORD dwAutoDetectFlags, LPWSTR *ppwszAutoConfigUrl);
788 
789     BOOL WinHttpGetDefaultProxyConfiguration(WINHTTP_PROXY_INFO *pProxyInfo);
790     BOOL WinHttpGetIEProxyConfigForCurrentUser(WINHTTP_CURRENT_USER_IE_PROXY_CONFIG *pProxyConfig);
791     BOOL WinHttpGetProxyForUrl(HINTERNET hSession,  LPCWSTR lpcwszUrl,
792                                WINHTTP_AUTOPROXY_OPTIONS *pAutoProxyOptions, WINHTTP_PROXY_INFO *pProxyInfo);
793 
794     HINTERNET WinHttpOpen(LPCWSTR pwszUserAgent, DWORD dwAccessType, LPCWSTR pwszProxyName,
795                           LPCWSTR pwszProxyBypass, DWORD dwFlags);
796     HINTERNET WinHttpOpenRequest(HINTERNET hConnect, LPCWSTR pwszVerb, LPCWSTR pwszObjectName,
797                                  LPCWSTR pwszVersion, LPCWSTR pwszReferrer,
798                                  LPCWSTR *ppwszAcceptTypes, DWORD dwFlags);
799 
800     BOOL WinHttpQueryAuthSchemes(HINTERNET hRequest, LPDWORD lpdwSupportedSchemes,
801                                  LPDWORD lpdwFirstScheme, LPDWORD pdwAuthTarget);
802     BOOL WinHttpQueryDataAvailable(HINTERNET hRequest, LPDWORD lpdwNumberOfBytesAvailable);
803     BOOL WinHttpQueryHeaders(HINTERNET hRequest, DWORD dwInfoLevel, LPCWSTR pwszName,
804                              LPVOID lpBuffer, LPDWORD lpdwBufferLength, LPDWORD lpdwIndex);
805     BOOL WinHttpQueryOption(HINTERNET hInternet, DWORD dwOption, LPVOID lpBuffer,
806                             LPDWORD lpdwBufferLength);
807 
808     BOOL WinHttpReadData(HINTERNET hRequest, LPVOID lpBuffer, DWORD dwNumberOfBytesToRead,
809                          LPDWORD lpdwNumberOfBytesRead);
810     BOOL WinHttpReceiveResponse(HINTERNET hRequest, LPVOID lpReserved);
811 
812     BOOL WinHttpSendRequest(HINTERNET hRequest, LPCWSTR pwszHeaders, DWORD dwHeadersLength,
813                             LPVOID lpOptional, DWORD dwOptionalLength, DWORD dwTotalLength, DWORD_PTR dwContext);
814 
815     BOOL WinHttpSetCredentials(HINTERNET hRequest, DWORD AuthTargets, DWORD AuthScheme,
816                                LPCWSTR pwszUserName, LPCWSTR pwszPassword, LPVOID pAuthParams);
817     BOOL WinHttpSetDefaultProxyConfiguration(WINHTTP_PROXY_INFO *pProxyInfo);
818     BOOL WinHttpSetOption(HINTERNET hInternet, DWORD dwOption, LPVOID lpBuffer, DWORD dwBufferLength);
819     WINHTTP_STATUS_CALLBACK WinHttpSetStatusCallback(HINTERNET hInternet,
820                                                      WINHTTP_STATUS_CALLBACK lpfnInternetCallback,
821                                                      DWORD dwNotificationFlags, DWORD_PTR dwReserved);
822     BOOL WinHttpSetTimeouts(HINTERNET hInternet, int dwResolveTimeout, int dwConnectTimeout,
823                             int dwSendTimeout, int dwReceiveTimeout);
824 
825     BOOL WinHttpTimeFromSystemTime(const SYSTEMTIME *pst, LPWSTR pwszTime);
826     BOOL WinHttpTimeToSystemTime(LPCWSTR pwszTime, SYSTEMTIME *pst);
827 
828     BOOL WinHttpWriteData(HINTERNET hRequest, LPCVOID lpBuffer, DWORD dwNumberOfBytesToWrite,
829                           LPDWORD lpdwNumberOfBytesWritten);
830 
831   // Version(Windows8) || Version(Windows2012):
832   static if (_WIN32_WINNT >= 0x602) {
833     DWORD WinHttpCreateProxyResolver(HINTERNET hSession, HINTERNET *phResolver);
834     void WinHttpFreeProxyResult(WINHTTP_PROXY_RESULT *pProxyResult);
835     DWORD WinHttpGetProxyForUrlEx(HINTERNET hResolver, PCWSTR pcwszUrl,
836                                   WINHTTP_AUTOPROXY_OPTIONS *pAutoProxyOptions, DWORD_PTR pContext);
837     DWORD WinHttpGetProxyResult(HINTERNET hResolver, WINHTTP_PROXY_RESULT *pProxyResult);
838     DWORD WinHttpResetAutoProxy(HINTERNET hSession, DWORD dwFlags);
839     DWORD WinHttpWebSocketClose(HINTERNET hWebSocket, USHORT usStatus, PVOID pvReason, DWORD dwReasonLength);
840     HINTERNET WinHttpWebSocketCompleteUpgrade(HINTERNET hRequest, DWORD_PTR pContext);
841     DWORD WinHttpWebSocketQueryCloseStatus(HINTERNET hWebSocket, USHORT *pusStatus, PVOID pvReason,
842                                            DWORD dwReasonLength, DWORD *pdwReasonLengthConsumed);
843     DWORD WinHttpWebSocketReceive(HINTERNET hWebSocket, PVOID pvBuffer,  DWORD dwBufferLength,
844                                   DWORD *pdwBytesRead, WINHTTP_WEB_SOCKET_BUFFER_TYPE *peBufferType);
845     DWORD WinHttpWebSocketSend(HINTERNET hWebSocket, WINHTTP_WEB_SOCKET_BUFFER_TYPE eBufferType,
846                                PVOID pvBuffer, DWORD dwBufferLength);
847     DWORD WinHttpWebSocketShutdown(HINTERNET hWebSocket, USHORT usStatus, PVOID pvReason, DWORD dwReasonLength);
848   }
849 }
850