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NCBI C++ ToolKit: src/connect/ncbi_http_session.cpp Source File

it->second.size();

it->second.back();

vals.push_back(

);

list<CTempString> lines;

(list<CTempString>, line, lines) {

(delim ==

|| delim < 1) {

name = line->substr(0, delim);

= line->substr(delim + 1);

to[name].push_back(

);

name->second.begin(), name->second.end());

: m_ContentType(eFormUrlEncoded),

m_Boundary(CreateBoundary())

);

( entry_name.

() ) {

);

values.push_back(entry);

( entry_name.

() ) {

);

& content_type)

= 1103515245;

c = 12345;

m = 1 << 16;

kBoundaryChars[] =

;

kBoundaryCharsLen =

(kBoundaryChars) - 1;

kBoundaryLen = 32;

(

= 0;

< kBoundaryLen; ++

) {

boundary += kBoundaryChars[

(kBoundaryCharsLen)];

& boundary,

& content_type,

<<

<< name <<

;

( !filename.empty() ) {

<<

<< filename <<

;

( !content_type.empty() ) {

<<

<<

(values->second.size() > 1) {

+ values->first +

);

args.

(values->first, values->second.back().m_Value);

entry->m_ContentType);

( providers->second.empty() )

;

part_content_type =

;

part_content_type += part_boundary;

(*provider)->GetContentType(),

(*provider)->GetFileName());

(*provider)->WriteData(

);

shared_ptr<iostream> stream)

: m_Session(&session),

m_Stream(std::move(stream)),

: m_Cert(cert), m_PKey(pkey)

maxtry = atoi(

);

(

)(maxtry ? maxtry - 1 : 0);

(

)(++retries ? retries : retries - 1);

: m_Session(&session),

m_Credentials(session.GetCredentials())

<

TMember,

TValue = TMember>

<

TTo,

TFrom>

(TTo&,

TFrom&);

m_Enabled(on_off ==

),

m_Deadline(deadline.IsDefault() ?

::eInfinite : deadline),

m_FormData(form_data)

kExecuteDefaultRefreshDelay = 5;

kExecuteHeaderRetryURL =

;

kExecuteHeaderRetryDelay =

;

& retry_url = headers.

(kExecuteHeaderRetryURL);

(retry_url.empty())

;

& retry_delay = headers.

(kExecuteHeaderRetryDelay);

sleep_ms = kExecuteDefaultRefreshDelay;

(!retry_delay.empty()) {

(remaining < sleep_ms) sleep_ms = remaining;

<

TTo,

TFrom>

);

);

);

);

);

( proxy.

() )

;

(!net_info || (is_service && !net_info->svc[0])) {

);

net_info->http_version = 1;

(net_info->http_user_header) {

unique_ptr<SAdjustData> adjust_data(

(

, is_service));

memset(&x_extra, 0,

(x_extra));

x_extra.

= adjust_data.get();

adjust_data.release();

( !cookies.empty() || !initial ) {

failure_count)

( !user_data )

0;

(failure_count == (

)(-1) && !adj->

)

(failure_count && failure_count != (

)(-1)) {

url(loc.get());

(failure_count) {

+ new_url);

);

);

);

: m_Protocol(protocol),

( content_type.

() ) {

( !

.empty() ) {

( content_type.

() ) {

( !

.empty() ) {

( !cookies.empty() ) {

);

(url, hdr, timeout, retries);

(!

.empty()) {

(url, hdr,

, content_type, timeout, retries);

( content_type.

() ) {

( !

.empty() ) {

(!

.empty()) {

(url, hdr,

, content_type, timeout, retries);

( content_type.

() ) {

( !

.empty() ) {

:

;

Helper base class for HTTP-like streams.

This stream exchanges data with an HTTP server located at the URL: http[s]://host[:port]/path[?...

This stream exchanges data with a named service, in a constraint that the service is implemented as o...

Primitive encoder - all methods return the argument value.

CFileDataProvider(const string &file_name, const string &content_type)

virtual void WriteData(CNcbiOstream &out) const

Write user data to the stream.

virtual string GetFileName(void) const

Get optional filename to be shown in Content-Disposition header.

virtual ~CFileDataProvider(void)

virtual string GetContentType(void) const

Get content type.

virtual string EncodeArgName(const string &name) const

Encode URL argument name.

virtual string EncodeArgValue(const string &value) const

Encode URL argument value.

Interface for custom form data providers.

CHttpSession and CHttpRequest parameters.

Per-request proxy settings.

CHttpSessionException –.

HTTP session class, holding common data for multiple requests.

CTempString implements a light-weight string on top of a storage buffer whose lifetime management is ...

CTimeout – Timeout interval.

container_type::const_iterator const_iterator

container_type::iterator iterator

const_iterator end() const

const_iterator find(const key_type &key) const

The NCBI C++ standard methods for dealing with std::string.

std::ofstream out("events_result.xml")

main entry point for tests

static DLIST_TYPE *DLIST_NAME() last(DLIST_LIST_TYPE *list)

bool IsNull(void) const

Check if the object is unassigned.

#define ITERATE(Type, Var, Cont)

ITERATE macro to sequence through container elements.

unique_ptr< T, TDeleter > make_c_unique(T *p, TDeleter d)

Eliminates the necessity for specifying types of both allocated resource and deallocating C function.

int GetStatusCode(void) const

Get the last seen HTTP status code, if available.

const CTempString GetStatusText(void) const

Get the last seen HTTP status text, if available.

const string & GetHTTPHeader(void) const

Get the last seen HTTP header text, if available.

FHTTP_ParseHeader parse_header

EHTTP_HeaderParse

The extended version HTTP_CreateConnectorEx() is able to track the HTTP response chain and also chang...

@ fHTTP_AdjustOnRedirect

Call adjust routine for redirects, too.

@ eHTTP_HeaderError

Parse failed, treat as a server error.

@ eHTTP_HeaderContinue

Parse succeeded, continue with body.

#define ERR_POST(message)

Error posting with file, line number information but without error codes.

TErrCode GetErrCode(void) const

Get error code.

#define NCBI_THROW(exception_class, err_code, message)

Generic macro to throw an exception, given the exception class, error code and message string.

TErrCode GetErrCode(void) const

virtual const char * GetErrCodeString(void) const

Get error code interpreted as text.

const_iterator begin(void) const

Iterate all cookies.

string AsString(ECookieFormat format) const

Compose string from the cookie.

void Add(const CHttpCookie &cookie)

Add a single cookie.

shared_ptr< iostream > m_Stream

void ParseHttpHeader(const CTempString &headers)

Parse headers from the string (usually provided by a stream callback).

void SetRetries(THttpRetries retries)

Set number of retries.

static const char * GetHeaderName(EHeaderName name)

Get string representation of the given name.

void x_InitConnection2(shared_ptr< iostream > stream)

vector< SFormData > TValues

CHttpResponse Get(const CUrl &url, const CTimeout &timeout=CTimeout(CTimeout::eDefault), THttpRetries retries=null)

Shortcut for GET requests.

shared_ptr< CTlsCertCredentials > GetCredentials(void) const

THttpRetries GetRetries(void) const

CHttpRequest & SetTimeout(const CTimeout &timeout)

Set new timeout.

EHeaderName

Some standard HTTP headers.

EProtocol GetProtocol(void) const

Get protocol version.

const CHttpProxy & GetProxy(void) const

void AddEntry(CTempString entry_name, CTempString value, CTempString content_type=CTempString())

Add name=value pair.

CHttpParam & AddHeader(CHttpHeaders::EHeaderName header, CTempString value)

Add a single HTTP header,.

CHttpParam & SetRetries(THttpRetries retries)

CNcbiIstream & ContentStream(void) const

Get input stream.

CRef< CAdjustUrlCallback_Base > m_AdjustUrl

const CTimeout & GetDeadline() const

const string & GetHost(void) const

ESwitch GetRetryProcessing() const

CRef< CHttpHeaders > m_Headers

void x_Update(CHttpHeaders::THeaders headers, int status_code, string status_text)

int GetStatusCode(void) const

Get response status code.

CHttpParam & SetHeaders(const CHttpHeaders &headers)

Add all HTTP headers to request.

void AddProvider(CTempString entry_name, CFormDataProvider_Base *provider)

Add custom data provider.

CRef< CHttpSession_Base > m_Session

void SetValue(CHeaderNameConverter name, CTempString value)

Remove all existing values with the name, set the new value.

unsigned short GetPort(void) const

CRef< CHttpSession_Base > m_Session

CHttpRequest & SetRetryProcessing(ESwitch on_off)

Set whether Execute() should wait for actual response.

CHttpSession_Base(EProtocol protocol)

bool x_CanSendData(void) const

const THeaderValues & GetAllValues(CHeaderNameConverter name) const

Get all values with the given name.

void WriteFormData(CNcbiOstream &out) const

Write form data to the stream using the selected form content type.

void x_SetProxy(SConnNetInfo &net_info)

const CHttpHeaders & Headers(void) const

Get incoming HTTP headers.

void x_InitConnection(bool use_form_data)

CNcbiIstream & ErrorStream(void) const

Get input stream containing error message (e.g.

string GetHttpHeader(void) const

Get all headers as a single string as required by CConn_HttpStream.

const CTimeout & GetTimeout(void) const

const string & GetPassword(void) const

string x_GetCookies(const CUrl &url) const

static int sx_Adjust(SConnNetInfo *net_info, void *user_data, unsigned int failure_count)

void ClearAll(void)

Remove all headers.

CHttpParam & SetCredentials(shared_ptr< CTlsCertCredentials > credentials)

CHttpRequest & SetDeadline(const CTimeout &deadline)

Set new deadline for Execute().

CNcbiOstream & ContentStream(void)

Get output stream to write user data.

void SetContentType(EContentType content_type)

Set content type for the form data.

void AddFile(CTempString entry_name, CTempString file_name, CTempString content_type=CTempString())

Add file entry.

NCBI_CRED GetNcbiCred(void) const

void Clear(void)

Clear all form data, reset content type to the default eFormUrlEncoded.

virtual const char * GetErrCodeString(void) const override

Get error code interpreted as text.

EContentType

Supported content types for POST requests.

shared_ptr< iostream > m_Stream

void AddValue(CHeaderNameConverter name, CTempString value)

Add new value with the name (multiple values are allowed with the same name, the order is preserved).

bool CanGetContentStream(void) const

Check if the requested content can be read from the content stream.

CTempString GetName(void)

ESwitch m_RetryProcessing

vector< CRef< CFormDataProvider_Base > > TProviders

void Clear(CHeaderNameConverter name)

Remove all values with the given name.

void x_UpdateResponse(CHttpHeaders::THeaders headers, int status_code, string status_text)

static EHTTP_HeaderParse sx_ParseHeader(const char *headers, void *user_data, int server_error)

static string CreateBoundary(void)

Generate a new random string to be used as multipart boundary.

CRef< CHttpHeaders > m_Headers

bool x_IsReservedHeader(CTempString name) const

const CHttpHeaders & GetHeaders(void) const

CHttpHeaders & Headers(void)

Get HTTP headers to be sent.

CRef< CHttpFormData > m_FormData

shared_ptr< CTlsCertCredentials > m_Credentials

CHttpResponse g_HttpPost(const CUrl &url, CTempString data, const CHttpParam &param)

Shortcut for POST request.

const CHttpProxy & GetProxy(void) const

bool IsEmpty(void) const

Check if the form data is empty (no entries have been added).

CHttpResponse Post(const CUrl &url, CTempString data, CTempString content_type=CTempString(), const CTimeout &timeout=CTimeout(CTimeout::eDefault), THttpRetries retries=null)

Shortcut for POST requests.

void x_AdjustHeaders(bool use_form_data)

void x_AddCookieHeader(const CUrl &url, bool initial)

virtual bool x_Downgrade(CHttpResponse &resp, EProtocol &protocol) const =0

TProviderEntries m_Providers

void Merge(const CHttpHeaders &headers)

Add values from 'headers' to this object.

CHttpParam & SetTimeout(const CTimeout &timeout)

CHttpResponse Put(const CUrl &url, CTempString data, CTempString content_type=CTempString(), const CTimeout &timeout=CTimeout(CTimeout::eDefault), THttpRetries retries=null)

Shortcut for PUT requests.

CHttpResponse(CHttpSession_Base &session, const CUrl &url, shared_ptr< iostream > stream={})

EContentType m_ContentType

THTTP_Flags GetHttpFlags(void) const

Get flags passed to CConn_HttpStream.

CHttpResponse g_HttpPut(const CUrl &url, CTempString data, const CHttpParam &param)

Shortcut for PUT request.

const CHttpProxy & GetProxy(void) const

unsigned short operator()(void) const

~CTlsCertCredentials(void)

void x_SetCookies(const CHttpHeaders::THeaderValues &cookies, const CUrl *url)

shared_ptr< CTlsCertCredentials > m_Credentials

const string & GetValue(CHeaderNameConverter name) const

Get value of the header or empty string.

shared_ptr< CTlsCertCredentials > m_Credentials

CHttpRequest NewRequest(const CUrl &url, ERequestMethod method=eGet, const CHttpParam &param={})

Initialize request.

virtual void x_StartRequest(EProtocol protocol, CHttpRequest &req, bool use_form_data)=0

CHttpResponse Execute(void)

Send the request, initialize and return the response.

ERequestMethod

Supported request methods, proxy for EReqMethod.

void SetCredentials(shared_ptr< CTlsCertCredentials > cred)

Set TLS credentials.

CRef< CHttpResponse > m_Response

CHttpResponse g_HttpGet(const CUrl &url, const CHttpParam &param)

Shortcut for GET request.

void SetParam(const CHttpParam &param)

Set request parameters.

CTlsCertCredentials(const CTempStringEx &cert, const CTempStringEx &pkey)

Initialize credentials.

size_t CountValues(CHeaderNameConverter name) const

Get number of values with the given name.

bool HasValue(CHeaderNameConverter name) const

Check if there's at least one header with the name.

const string & GetUser(void) const

string GetContentTypeStr(void) const

Get the form content type as a string.

CRef< CHttpHeaders > m_Headers

vector< string > THeaderValues

List of header values (may be required for headers with multiple values like Cookie).

CHttpFormData & FormData(void)

Get form data to be sent with POST request.

void Assign(const CHttpHeaders &headers)

Clear any existing values and copy all headers from 'headers' to this object.

EProtocol

HTTP protocol version.

friend class CHttpRequest

CHttpParam & SetHeader(CHttpHeaders::EHeaderName header, CTempString value)

Set or replace a single HTTP header,.

@ eFormUrlEncoded

'application/x-www-form-urlencoded', default

@ eMultipartFormData

'multipart/form-data'

@ eBadStream

Wrong stream used to read content or error.

@ eBadFormData

Bad form data (e.g. unreadable file).

@ eBadContentType

Content-type conflicts with the data.

@ eBadFormDataName

Empty or bad name in form data.

@ eBadRequest

Error initializing or sending a request.

@ eConnFailed

Failed to open connection.

CRef< C > Ref(C *object)

Helper functions to get CRef<> and CConstRef<> objects.

void Reset(void)

Reset reference object.

bool Empty(void) const THROWS_NONE

Check if CRef is empty – not pointing to any object, which means having a null value.

int64_t Int8

8-byte (64-bit) signed integer

#define END_NCBI_SCOPE

End previously defined NCBI scope.

#define BEGIN_NCBI_SCOPE

Define ncbi namespace.

#define NCBI_AS_STRING(value)

Convert some value to string even if this value is macro itself.

NCBI_CRED NcbiCreateTlsCertCredentials(const void *cert, size_t certsz, const void *pkey, size_t pkeysz)

Build NCBI_CRED from memory buffers containing X.509 certificate and private key, respectively,...

void NcbiDeleteTlsCertCredentials(NCBI_CRED cred)

Delete a NCBI_CRED handle created by NcbiCreateTlsCertCredentials().

void NcbiStreamCopyThrow(CNcbiOstream &os, CNcbiIstream &is)

Same as NcbiStreamCopy() but throws an CCoreException when copy fails.

IO_PREFIX::ostream CNcbiOstream

Portable alias for ostream.

IO_PREFIX::istream CNcbiIstream

Portable alias for istream.

IO_PREFIX::ifstream CNcbiIfstream

Portable alias for ifstream.

static int CompareNocase(const CTempString s1, SIZE_TYPE pos, SIZE_TYPE n, const char *s2)

Case-insensitive compare of a substring with another string.

static list< string > & Split(const CTempString str, const CTempString delim, list< string > &arr, TSplitFlags flags=0, vector< SIZE_TYPE > *token_pos=NULL)

Split a string using specified delimiters.

static void TruncateSpacesInPlace(string &str, ETrunc where=eTrunc_Both)

Truncate whitespace in a string (in-place)

static unsigned long StringToULong(const CTempString str, TStringToNumFlags flags=0, int base=10)

Convert string to unsigned long.

bool empty(void) const

Return true if the represented string is empty (i.e., the length is zero)

static bool EqualNocase(const CTempString s1, SIZE_TYPE pos, SIZE_TYPE n, const char *s2)

Case-insensitive equality of a substring with another string.

bool HasZeroAtEnd(void) const

TErrCode GetErrCode(void) const

Get error code.

static enable_if< is_arithmetic< TNumeric >::value||is_convertible< TNumeric, Int8 >::value, string >::type NumericToString(TNumeric value, TNumToStringFlags flags=0, int base=10)

Convert numeric value to string.

static string URLEncode(const CTempString str, EUrlEncode flag=eUrlEnc_SkipMarkChars)

URL-encode string.

@ fSplit_MergeDelimiters

Merge adjacent delimiters.

@ eUrlEnc_URIQueryValue

Encode query part of an URI, arg value.

@ eUrlEnc_URIQueryName

Encode query part of an URI, arg name.

@ eConvert

Failure to convert string.

@ eTrunc_Both

Truncate whitespace at both begin and end of string.

CNanoTimeout GetRemainingTime(void) const

Get time left to the expiration.

bool IsExpired(void) const

Check if the deadline is expired.

const long kMilliSecondsPerSecond

Number milliseconds in one second.

unsigned long GetAsMilliSeconds(void) const

Get as number of milliseconds.

void Set(EType type)

Set special value.

@ eConvert

Error converting value from one format to another.

string GetQueryString(EAmpEncoding amp_enc, NStr::EUrlEncode encode) const

Construct and return complete query string.

const string & GetService(void) const

void Adjust(const CUrl &other, TAdjustFlags flags)

Adjust this URL using information from 'other' URL.

const string & GetScheme(void) const

void SetUrl(const string &url, const IUrlEncoder *encoder=0)

Parse the URL.

void SetValue(const string &name, const string &value)

Set new value for the first argument with the given name or add a new argument.

bool IsService(void) const

string ComposeUrl(CUrlArgs::EAmpEncoding amp_enc, const IUrlEncoder *encoder=0) const

Compose the URL.

@ eAmp_Char

Use & to separate arguments.

@ fScheme_Replace

Replace scheme if set in 'other'.

@ fPath_Append

Append new path to the existing one.

@ fArgs_Merge

Append new args; replace values of existing args, do not allow to set multiple values with the same n...

char http_proxy_host[255+1]

enum ENcbiSwitch ESwitch

Aux.

char http_proxy_user[63+1]

unsigned short http_proxy_port

int ConnNetInfo_SetTimeout(SConnNetInfo *net_info, const STimeout *timeout)

int ConnNetInfo_OverrideUserHeader(SConnNetInfo *net_info, const char *header)

const STimeout * g_CTimeoutToSTimeout(const CTimeout &cto, STimeout &sto)

CTimeout/STimeout adapters.

int ConnNetInfo_ParseURL(SConnNetInfo *net_info, const char *url)

char http_proxy_pass[63+1]

char * ConnNetInfo_URL(const SConnNetInfo *net_info)

SConnNetInfo * ConnNetInfo_Create(const char *service)

void ConnNetInfo_Destroy(SConnNetInfo *net_info)

const GenericPointer< typename T::ValueType > T2 value

const char * ConnNetInfo_GetValueInternal(const char *service, const char *param, char *value, size_t value_size, const char *def_value)

static const char * kReservedHeaders[]

const char * kContentType_MultipartFormData

static const char kHttpHeaderDelimiter

DEFINE_STATIC_FAST_MUTEX(s_SessionMutex)

const char * kContentType_FormUrlEnc

static Int8 s_SimpleRand(Int8 range)

static void x_WritePartHeader(CNcbiOstream &out, const string &boundary, const string &name, const string &content_type, const string &filename=kEmptyStr)

static void s_Cleanup(void *user_data)

static const char * kHttpHeaderNames[]

static void s_ParseHttpHeader(const CTempString &from, CHttpHeaders::THeaders &to)

unsigned short x_RetriesToMaxtry(unsigned short retries)

static CSafeStatic< CHttpHeaders::THeaderValues > kEmptyValues

void SleepMilliSec(unsigned long ml_sec, EInterruptOnSignal onsignal=eRestartOnSignal)

Defines classes: CDirEntry, CFile, CDir, CSymLink, CMemoryFile, CFileUtil, CFileLock,...

Multi-threading – mutexes; rw-locks; semaphore.

std::istream & in(std::istream &in_, double &x_)

Defines CRequestContext class for NCBI C++ diagnostic API.

SAdjustData(CHttpRequest *request, bool is_service)

SValueRestorer(TMember &v)

bool operator()(const CHttpHeaders &headers)

SValueRestorer< CRef< CHttpHeaders >, CHttpHeaders > m_Headers

static void Assign(TTo &, const TFrom &)

SRetryProcessing(ESwitch on_off, const CTimeout &deadline, CUrl &url, EReqMethod &method, CRef< CHttpHeaders > &headers, CRef< CHttpFormData > &form_data)

SValueRestorer< CUrl > m_Url

SValueRestorer< CRef< CHttpFormData > > m_FormData

SValueRestorer< EReqMethod > m_Method

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