/usr/include/ncbi-vdb/kns/http.h is in libncbi-vdb-dev 2.8.1+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* PUBLIC DOMAIN NOTICE
* National Center for Biotechnology Information
*
* This software/database is a "United States Government Work" under the
* terms of the United States Copyright Act. It was written as part of
* the author's official duties as a United States Government employee and
* thus cannot be copyrighted. This software/database is freely available
* to the public for use. The National Library of Medicine and the U.S.
* Government have not placed any restriction on its use or reproduction.
*
* Although all reasonable efforts have been taken to ensure the accuracy
* and reliability of the software and data, the NLM and the U.S.
* Government do not and cannot warrant the performance or results that
* may be obtained by using this software or data. The NLM and the U.S.
* Government disclaim all warranties, express or implied, including
* warranties of performance, merchantability or fitness for any particular
* purpose.
*
* Please cite the author in any work or product based on this material.
*
* ===========================================================================
*
*/
#ifndef _h_kns_http_
#define _h_kns_http_
#ifndef _h_kns_extern_
#include <kns/extern.h>
#endif
#ifndef _h_klib_defs_
#include <klib/defs.h>
#endif
#include <stdarg.h>
#ifdef __cplusplus
extern "C" {
#endif
/*--------------------------------------------------------------------------
* forwards
*/
struct KFile;
struct String;
struct KStream;
struct KNSManager;
/*--------------------------------------------------------------------------
* KNSManager
*/
/* SetHTTPTimeouts
* sets default read/write timeouts to supply to HTTP connections
*
* "readMillis" [ IN ] and "writeMillis" - when negative, infinite timeout
* when 0, return immediately, positive gives maximum wait time in mS
* for reads and writes respectively.
*/
KNS_EXTERN rc_t CC KNSManagerSetHTTPTimeouts ( struct KNSManager * self,
int32_t readMillis, int32_t writeMillis );
/* GetHTTPProxyPath
* returns path to HTTP proxy server ( if set ) or NULL.
* return status is 0 if the path is valid, non-zero otherwise
*
* returned reference to String must be freed via StringWhack.
*
* DEPRECATED : THIS FUNCTION IS INCORRECT !!!
*/
KNS_EXTERN rc_t CC KNSManagerGetHTTPProxyPath ( struct KNSManager const * self,
struct String const ** proxy );
/* SetHTTPProxyPath
* sets a path to HTTP proxy server.
* a NULL path format value removes all proxy settings.
*/
KNS_EXTERN rc_t CC KNSManagerSetHTTPProxyPath ( struct KNSManager * self,
const char * fmt, ... );
KNS_EXTERN rc_t CC KNSManagerVSetHTTPProxyPath ( struct KNSManager * self,
const char * fmt, va_list args );
/* GetHTTPProxyEnabled
* returns true iff a non-NULL proxy path exists and user wants to use it
* users indicate desire to use proxy through configuration or SetHTTPProxyEnabled
*/
KNS_EXTERN bool CC KNSManagerGetHTTPProxyEnabled ( struct KNSManager const * self );
/* SetHTTPProxyEnabled
* sets http-proxy enabled state to supplied value
* returns the prior value as a convenience
*/
KNS_EXTERN bool CC KNSManagerSetHTTPProxyEnabled ( struct KNSManager * self, bool enabled );
/*------------------------------------------------------------------------------
* KFile
* a KFile over HTTP
*/
/* Make
*/
KNS_EXTERN rc_t CC KNSManagerMakeHttpFile ( struct KNSManager const *self,
struct KFile const **file, struct KStream *conn, ver_t vers, const char *url, ... );
KNS_EXTERN rc_t CC KNSManagerVMakeHttpFile ( struct KNSManager const *self,
struct KFile const **file, struct KStream *conn, ver_t vers, const char *url, va_list args );
/*--------------------------------------------------------------------------
* KClientHttp
* hyper text transfer protocol
*/
typedef struct KClientHttp KClientHttp, KHttp;
/* MakeClientHttp
* create an HTTP protocol
*
* "http" [ OUT ] - return parameter for HTTP object
*
* "opt_conn" [ IN, NULL OKAY ] - previously opened stream for communications.
*
* "vers" [ IN ] - http version
* the only legal types are 1.0 ( 0x01000000 ) and 1.1 ( 0x01010000 )
*
* "readMillis" [ IN ] and "writeMillis" - when negative, infinite timeout
* when 0, return immediately, positive gives maximum wait time in mS
* for reads and writes respectively.
*
* "host" [ IN ] - parameter to give the host dns name for the connection
*
* "port" [ IN, DEFAULT ZERO ] - if zero, defaults to standard for scheme
* if non-zero, is taken as explicit port specification
*/
KNS_EXTERN rc_t CC KNSManagerMakeClientHttp ( struct KNSManager const *self,
KClientHttp **http, struct KStream *conn, ver_t vers,
struct String const *host, uint32_t port );
KNS_EXTERN rc_t CC KNSManagerMakeTimedClientHttp ( struct KNSManager const *self,
KClientHttp **http, struct KStream *opt_conn, ver_t vers,
int32_t readMillis, int32_t writeMillis,
struct String const *host, uint32_t port );
/* MakeClientHttps
* create an HTTPS protocol
*
* "https" [ OUT ] - return parameter for HTTPS object
*
* "opt_conn" [ IN, NULL OKAY ] - previously opened stream for communications.
*
* "vers" [ IN ] - https version
* the only legal types are 1.0 ( 0x01000000 ) and 1.1 ( 0x01010000 )
*
* "readMillis" [ IN ] and "writeMillis" - when negative, infinite timeout
* when 0, return immediately, positive gives maximum wait time in mS
* for reads and writes respectively.
*
* "host" [ IN ] - parameter to give the host dns name for the connection
*
* "port" [ IN, DEFAULT ZERO ] - if zero, defaults to standard for scheme
* if non-zero, is taken as explicit port specification
*/
KNS_EXTERN rc_t CC KNSManagerMakeClientHttps ( struct KNSManager const *self,
KClientHttp **https, struct KStream *conn, ver_t vers,
struct String const *host, uint32_t port );
KNS_EXTERN rc_t CC KNSManagerMakeTimedClientHttps ( struct KNSManager const *self,
KClientHttp **https, struct KStream *opt_conn, ver_t vers,
int32_t readMillis, int32_t writeMillis,
struct String const *host, uint32_t port );
/* AddRef
* Release
* ignores NULL references
*/
KNS_EXTERN rc_t CC KClientHttpAddRef ( const KClientHttp *self );
KNS_EXTERN rc_t CC KClientHttpRelease ( const KClientHttp *self );
/* compatibility for existing code */
#define KNSManagerMakeHttp KNSManagerMakeClientHttp
#define KNSManagerMakeTimedHttp KNSManagerMakeTimedClientHttp
#define KHttpAddRef KClientHttpAddRef
#define KHttpRelease KClientHttpRelease
/*------------------------------------------------------------------------------
* KClientHttpRequest
* hyper text transfer protocol
* a client request
*/
typedef struct KClientHttpRequest KClientHttpRequest, KHttpRequest;
/* MakeRequest
* create a request that can be used to contact HTTP server
*
* "req" [ OUT ] - return parameter for HTTP request object
*
* "vers" [ IN ] - http version
*
* "conn" [ IN, NULL OKAY ] - previously opened stream for communications.
*
* "url" [ IN ] - full resource identifier. if "conn" is NULL,
* the url is parsed for remote endpoint and is opened by mgr.
*/
KNS_EXTERN rc_t CC KClientHttpMakeRequest ( const KClientHttp *self,
KClientHttpRequest **req, const char *url, ... );
KNS_EXTERN rc_t CC KNSManagerMakeClientRequest ( struct KNSManager const *self,
KClientHttpRequest **req, ver_t version, struct KStream *conn, const char *url, ... );
/* AddRef
* Release
* ignores NULL references
*/
KNS_EXTERN rc_t CC KClientHttpRequestAddRef ( const KClientHttpRequest *self );
KNS_EXTERN rc_t CC KClientHttpRequestRelease ( const KClientHttpRequest *self );
/* Connection
* sets connection management headers
*
* "close" [ IN ] - if "true", inform the server to close the connection
* after its response ( default for version 1.0 ). when "false" ( default
* for version 1.1 ), ask the server to keep the connection open.
*
* NB - the server is not required to honor the request
*/
KNS_EXTERN rc_t CC KClientHttpRequestConnection ( KClientHttpRequest *self, bool close );
/* SetNoCache
* guard against over-eager proxies that try to cache entire files
* and handle byte-ranges locally.
*/
KNS_EXTERN rc_t CC KClientHttpRequestSetNoCache ( KClientHttpRequest *self );
/* ByteRange
* set requested byte range of response
*
* "pos" [ IN ] - beginning offset within remote entity
*
* "bytes" [ IN ] - the number of bytes being requested
*/
KNS_EXTERN rc_t CC KClientHttpRequestByteRange ( KClientHttpRequest *self, uint64_t pos, size_t bytes );
/* AddHeader
* allow addition of an arbitrary HTTP header to message
*/
KNS_EXTERN rc_t CC KClientHttpRequestAddHeader ( KClientHttpRequest *self,
const char *name, const char *val, ... );
/* AddPostParam
* adds a parameter for POST
*/
KNS_EXTERN rc_t CC KClientHttpRequestAddPostParam ( KClientHttpRequest *self, const char *fmt, ... );
KNS_EXTERN rc_t CC KClientHttpRequestVAddPostParam ( KClientHttpRequest *self, const char *fmt, va_list args );
/* compatibility for existing code */
#define KHttpMakeRequest KClientHttpMakeRequest
#define KNSManagerMakeRequest KNSManagerMakeClientRequest
#define KHttpRequestAddRef KClientHttpRequestAddRef
#define KHttpRequestRelease KClientHttpRequestRelease
#define KHttpRequestConnection KClientHttpRequestConnection
#define KHttpRequestByteRange KClientHttpRequestByteRange
#define KHttpRequestAddHeader KClientHttpRequestAddHeader
#define KHttpRequestAddPostParam KClientHttpRequestAddPostParam
#define KHttpRequestVAddPostParam KClientHttpRequestVAddPostParam
/*--------------------------------------------------------------------------
* KClientHttpResult
* hyper text transfer protocol
*/
typedef struct KClientHttpResult KClientHttpResult, KHttpResult;
/* AddRef
* Release
* ignores NULL references
*/
KNS_EXTERN rc_t CC KClientHttpResultAddRef ( const KClientHttpResult *self );
KNS_EXTERN rc_t CC KClientHttpResultRelease ( const KClientHttpResult *self );
/* HEAD
* send HEAD message
*/
KNS_EXTERN rc_t CC KClientHttpRequestHEAD ( KClientHttpRequest *self, KClientHttpResult **rslt );
/* GET
* send GET message
* all query AND post parameters are combined in URL
*/
KNS_EXTERN rc_t CC KClientHttpRequestGET ( KClientHttpRequest *self, KClientHttpResult **rslt );
/* POST
* send POST message
* query parameters are sent in URL
* post parameters are sent in body
*/
KNS_EXTERN rc_t CC KClientHttpRequestPOST ( KClientHttpRequest *self, KClientHttpResult **rslt );
/* Status
* access the response status code
* and optionally the message
*
* "code" [ OUT ] - return parameter for status code
*
* "msg_buff" [ IN, NULL OKAY ] and "buff_size" [ IN, ZERO OKAY ] -
* buffer for capturing returned message
*
* "msg_size" [ OUT, NULL OKAY ] - size of returned message in bytes
*/
KNS_EXTERN rc_t CC KClientHttpResultStatus ( const KClientHttpResult *self, uint32_t *code,
char *msg_buff, size_t buff_size, size_t *msg_size );
/* KeepAlive
* retrieves keep-alive property of response
* requires HTTP/1.1
*/
KNS_EXTERN bool CC KClientHttpResultKeepAlive ( const KClientHttpResult *self );
/* Range
* retrieves position and partial size for partial requests
*
* "pos" [ OUT ] - offset to beginning portion of response
*
* "bytes" [ OUT ] - size of range
*/
KNS_EXTERN rc_t CC KClientHttpResultRange ( const KClientHttpResult *self, uint64_t *pos, size_t *bytes );
/* Size
* retrieves overall size of entity, if known
*
* "response_size" [ OUT ] - size in bytes of response
* this is the number of bytes that may be expected from the input stream
*/
KNS_EXTERN bool CC KClientHttpResultSize ( const KClientHttpResult *self, uint64_t *size );
/* AddHeader
* allow addition of an arbitrary HTTP header to RESPONSE
* this can be used to repair or normalize odd server behavior
*/
KNS_EXTERN rc_t CC KClientHttpResultAddHeader ( KClientHttpResult *self,
const char *name, const char *val, ... );
/* GetHeader
* retrieve named header if present
* this cand potentially return a comma separated value list
*/
KNS_EXTERN rc_t CC KClientHttpResultGetHeader ( const KClientHttpResult *self, const char *name,
char *buffer, size_t bsize, size_t *num_read );
/* GetInputStream
* access the body of response as a stream
* only reads are supported
*
* "s" [ OUT ] - return parameter for input stream reference
* must be released via KStreamRelease
*/
KNS_EXTERN rc_t CC KClientHttpResultGetInputStream ( KClientHttpResult *self,
struct KStream ** s );
KNS_EXTERN bool CC KFileIsKHttpFile ( const struct KFile * self );
/* compatibility defines */
#define KHttpResultAddRef KClientHttpResultAddRef
#define KHttpResultRelease KClientHttpResultRelease
#define KHttpRequestHEAD KClientHttpRequestHEAD
#define KHttpRequestGET KClientHttpRequestGET
#define KHttpRequestPOST KClientHttpRequestPOST
#define KHttpResultStatus KClientHttpResultStatus
#define KHttpResultKeepAlive KClientHttpResultKeepAlive
#define KHttpResultRange KClientHttpResultRange
#define KHttpResultSize KClientHttpResultSize
#define KHttpResultAddHeader KClientHttpResultAddHeader
#define KHttpResultGetHeader KClientHttpResultGetHeader
#define KHttpResultGetInputStream KClientHttpResultGetInputStream
#ifdef __cplusplus
}
#endif
#endif /* _h_kns_http_ */
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