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///////////////////////////////////////////////////////////////////////////////
//
// Module Name:
// CmsiHTTPClientCommon.h
//
// Abstract: Coomon structs and types for the HTTP protocol API
// Author: Eitan Michaelso
// Version: 1.0
//
///////////////////////////////////////////////////////////////////////////////
#ifndef _HTTPCLIENT_PROTOCOL_H_
#define _HTTPCLIENT_PROTOCOL_H_
#ifdef __cplusplus
extern "C" {
#endif
// Global default sizes
#define HTTP_CLIENT_MAX_URL_LENGTH 512 // Maximum length for an HTTP Url parameter
// HTTP Session flags (Public flags)
#define HTTP_CLIENT_FLAG_KEEP_ALIVE 0x00000001 // Set the keep alive header
#define HTTP_CLIENT_FLAG_SEND_CHUNKED 0x00000002 // The outgoing should chunked
#define HTTP_CLIENT_FLAG_NO_CACHE 0x00000004 // Set the no cache header
#define HTTP_CLIENT_FLAG_ASYNC 0x00000008 // Currently not implemented
// HTTP status internal flags
#define HTTP_CLIENT_STATE_PRE_INIT 0x00000000 // Starting stage
#define HTTP_CLIENT_STATE_INIT 0x00000001 // API was initialized (memory was allocated)
#define HTTP_CLIENT_STATE_URL_PARSED 0x00000002 // Url was parsed
#define HTTP_CLIENT_STATE_HOST_CONNECTED 0x00000004 // HEAD verb was sent
#define HTTP_CLIENT_STATE_HEAD_SENT 0x00000008 // Post verb was sent
#define HTTP_CLIENT_STATE_POST_SENT 0x00000010 // HTTP requet was sent
#define HTTP_CLIENT_STATE_REQUEST_SENT 0x00000020 // HTTP request was sent
#define HTTP_CLIENT_STATE_HEADERS_RECIVED 0x00000040 // Headers ware recived from the server
#define HTTP_CLIENT_STATE_HEADERS_PARSED 0x00000080 // HTTP headers ware parsed
#define HTTP_CLIENT_STATE_HEADERS_OK 0x00000100 // Headers status was OK
// HTTP Return codes
#define HTTP_CLIENT_SUCCESS 0 // HTTP Success status
#define HTTP_CLIENT_UNKNOWN_ERROR 1 // Unknown error
#define HTTP_CLIENT_ERROR_INVALID_HANDLE 2 // an Invalid handle or possible bad pointer was passed to a function
#define HTTP_CLIENT_ERROR_NO_MEMORY 3 // Buffer too small or a failure while in memory allocation
#define HTTP_CLIENT_ERROR_SOCKET_INVALID 4 // an attempt to use an invalid socket handle was made
#define HTTP_CLIENT_ERROR_SOCKET_CANT_SET 5 // Can't send socket parameters
#define HTTP_CLIENT_ERROR_SOCKET_RESOLVE 6 // Error while resolving host name
#define HTTP_CLIENT_ERROR_SOCKET_CONNECT 7 // Error while connecting to the remote server
#define HTTP_CLIENT_ERROR_SOCKET_TIME_OUT 8 // socket time out error
#define HTTP_CLIENT_ERROR_SOCKET_RECV 9 // Error while receiving data
#define HTTP_CLIENT_ERROR_SOCKET_SEND 10 // Error while sending data
#define HTTP_CLIENT_ERROR_HEADER_RECV 11 // Error while receiving the remote HTTP headers
#define HTTP_CLIENT_ERROR_HEADER_NOT_FOUND 12 // Could not find element within header
#define HTTP_CLIENT_ERROR_HEADER_BIG_CLUE 13 // The headers search clue was too large for the internal API buffer
#define HTTP_CLIENT_ERROR_HEADER_NO_LENGTH 14 // No content length was specified for the outgoing data. the caller should specify chunking mode in the session creation
#define HTTP_CLIENT_ERROR_CHUNK_TOO_BIG 15 // The HTTP chunk token that was received from the server was too big and possibly wrong
#define HTTP_CLIENT_ERROR_AUTH_HOST 16 // Could not authenticate with the remote host
#define HTTP_CLIENT_ERROR_AUTH_PROXY 17 // Could not authenticate with the remote proxy
#define HTTP_CLIENT_ERROR_BAD_VERB 18 // Bad or not supported HTTP verb was passed to a function
#define HTTP_CLIENT_ERROR_LONG_INPUT 19 // a function received a parameter that was too large
#define HTTP_CLIENT_ERROR_BAD_STATE 20 // The session state prevents the current function from proceeding
#define HTTP_CLIENT_ERROR_CHUNK 21 // Could not parse the chunk length while in chunked transfer
#define HTTP_CLIENT_ERROR_BAD_URL 22 // Could not parse curtail elements from the URL (such as the host name, HTTP prefix act')
#define HTTP_CLIENT_ERROR_BAD_HEADER 23 // Could not detect key elements in the received headers
#define HTTP_CLIENT_ERROR_BUFFER_RSIZE 24 // Error while attempting to resize a buffer
#define HTTP_CLIENT_ERROR_BAD_AUTH 25 // Authentication schema is not supported
#define HTTP_CLIENT_ERROR_AUTH_MISMATCH 26 // The selected authentication schema does not match the server response
#define HTTP_CLIENT_ERROR_NO_DIGEST_TOKEN 27 // an element was missing while parsing the digest authentication challenge
#define HTTP_CLIENT_ERROR_NO_DIGEST_ALG 28 // Digest algorithem could be MD5 or MD5-sess other types are not supported
#define HTTP_CLIENT_ERROR_SOCKET_BIND 29 // Binding error
#define HTTP_CLIENT_ERROR_TLS_NEGO 30 // Tls negotiation error
#define HTTP_CLIENT_ERROR_NOT_IMPLEMENTED 64 // Feature is not (yet) implemented
#define HTTP_CLIENT_EOS 1000 // HTTP end of stream message
///////////////////////////////////////////////////////////////////////////////
//
// Section : HTTP API structures
// Last updated : 01/09/2005
//
///////////////////////////////////////////////////////////////////////////////
// HTTP Supported authentication methods
typedef enum _HTTP_AUTH_SCHEMA
{
AuthSchemaNone = 0,
AuthSchemaBasic,
AuthSchemaDigest,
AuthSchemaKerberos,
AuthNotSupported
} HTTP_AUTH_SCHEMA;
// HTTP supported verbs
typedef enum _HTTP_VERB
{
VerbGet = 0,
VerbHead,
VerbPost,
VerbNotSupported
// Note: others verb such as connect and put are currently not supported
} HTTP_VERB;
// Data structure that the caller can request at any time that will include some information regarding the session
typedef struct _HTTP_CLIENT
{
UINT32 HTTPStatusCode; // HTTP Status code (200 OK)
UINT32 RequestBodyLengthSent; // Total bytes sent (body only)
UINT32 ResponseBodyLengthReceived; // Total bytes received (body only)
UINT32 TotalResponseBodyLength; // as extracted from the “content-length" header
UINT32 HttpState;
} HTTP_CLIENT;
#ifdef __cplusplus
}
#endif
#endif // _HTTPCLIENT_PROTOCOL_H_
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