Mercurial > hg > orthanc
view Core/HttpClient.cpp @ 3915:7e33516965f8 transcoding
merging sample GDCM decoder and Orthanc Web viewer
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Mon, 11 May 2020 15:13:16 +0200 |
parents | f6a73611ec5c |
children |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2020 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * In addition, as a special exception, the copyright holders of this * program give permission to link the code of its release with the * OpenSSL project's "OpenSSL" library (or with modified versions of it * that use the same license as the "OpenSSL" library), and distribute * the linked executables. You must obey the GNU General Public License * in all respects for all of the code used other than "OpenSSL". If you * modify file(s) with this exception, you may extend this exception to * your version of the file(s), but you are not obligated to do so. If * you do not wish to do so, delete this exception statement from your * version. If you delete this exception statement from all source files * in the program, then also delete it here. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "PrecompiledHeaders.h" #include "HttpClient.h" #include "Toolbox.h" #include "OrthancException.h" #include "Logging.h" #include "ChunkedBuffer.h" #include "SystemToolbox.h" #include <string.h> #include <curl/curl.h> #include <boost/algorithm/string/predicate.hpp> #include <boost/thread/mutex.hpp> // Default timeout = 60 seconds (in Orthanc <= 1.5.6, it was 10 seconds) static const unsigned int DEFAULT_HTTP_TIMEOUT = 60; #if ORTHANC_ENABLE_PKCS11 == 1 # include "Pkcs11.h" #endif extern "C" { static CURLcode GetHttpStatus(CURLcode code, CURL* curl, long* status) { if (code == CURLE_OK) { code = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, status); return code; } else { LOG(ERROR) << "Error code " << static_cast<int>(code) << " in libcurl: " << curl_easy_strerror(code); *status = 0; return code; } } } // This is a dummy wrapper function to suppress any OpenSSL-related // problem in valgrind. Inlining is prevented. #if defined(__GNUC__) || defined(__clang__) __attribute__((noinline)) #endif static CURLcode OrthancHttpClientPerformSSL(CURL* curl, long* status) { #if ORTHANC_ENABLE_SSL == 1 return GetHttpStatus(curl_easy_perform(curl), curl, status); #else throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError, "Orthanc was compiled without SSL support, " "cannot make HTTPS request"); #endif } namespace Orthanc { static CURLcode CheckCode(CURLcode code) { if (code == CURLE_NOT_BUILT_IN) { throw OrthancException(ErrorCode_InternalError, "Your libcurl does not contain a required feature, " "please recompile Orthanc with -DUSE_SYSTEM_CURL=OFF"); } if (code != CURLE_OK) { throw OrthancException(ErrorCode_NetworkProtocol, "libCURL error: " + std::string(curl_easy_strerror(code))); } return code; } // RAII pattern around a "curl_slist" class HttpClient::CurlHeaders : public boost::noncopyable { private: struct curl_slist *content_; bool isChunkedTransfer_; bool hasExpect_; public: CurlHeaders() : content_(NULL), isChunkedTransfer_(false), hasExpect_(false) { } CurlHeaders(const HttpClient::HttpHeaders& headers) { for (HttpClient::HttpHeaders::const_iterator it = headers.begin(); it != headers.end(); ++it) { AddHeader(it->first, it->second); } } ~CurlHeaders() { Clear(); } bool IsEmpty() const { return content_ == NULL; } void Clear() { if (content_ != NULL) { curl_slist_free_all(content_); content_ = NULL; } isChunkedTransfer_ = false; hasExpect_ = false; } void AddHeader(const std::string& key, const std::string& value) { if (boost::iequals(key, "Expect")) { hasExpect_ = true; } if (boost::iequals(key, "Transfer-Encoding") && value == "chunked") { isChunkedTransfer_ = true; } std::string item = key + ": " + value; struct curl_slist *tmp = curl_slist_append(content_, item.c_str()); if (tmp == NULL) { throw OrthancException(ErrorCode_NotEnoughMemory); } else { content_ = tmp; } } void Assign(CURL* curl) const { CheckCode(curl_easy_setopt(curl, CURLOPT_HTTPHEADER, content_)); } bool HasExpect() const { return hasExpect_; } bool IsChunkedTransfer() const { return isChunkedTransfer_; } }; class HttpClient::CurlRequestBody : public boost::noncopyable { private: HttpClient::IRequestBody* body_; std::string sourceBuffer_; size_t sourceBufferTransmittedSize_; size_t CallbackInternal(char* curlBuffer, size_t curlBufferSize) { if (body_ == NULL) { throw OrthancException(ErrorCode_BadSequenceOfCalls); } if (curlBufferSize == 0) { throw OrthancException(ErrorCode_InternalError); } // Read chunks from the body stream so as to fill the target buffer size_t curlBufferFilledSize = 0; size_t sourceRemainingSize = sourceBuffer_.size() - sourceBufferTransmittedSize_; bool hasMore = true; while (sourceRemainingSize < curlBufferSize && hasMore) { if (sourceRemainingSize > 0) { // transmit the end of current source buffer memcpy(curlBuffer + curlBufferFilledSize, sourceBuffer_.data() + sourceBufferTransmittedSize_, sourceRemainingSize); curlBufferFilledSize += sourceRemainingSize; } // start filling a new source buffer sourceBufferTransmittedSize_ = 0; sourceBuffer_.clear(); hasMore = body_->ReadNextChunk(sourceBuffer_); sourceRemainingSize = sourceBuffer_.size(); } if (sourceRemainingSize > 0 && curlBufferSize > curlBufferFilledSize) { size_t s = std::min(sourceRemainingSize, curlBufferSize - curlBufferFilledSize); memcpy(curlBuffer + curlBufferFilledSize, sourceBuffer_.data() + sourceBufferTransmittedSize_, s); sourceBufferTransmittedSize_ += s; curlBufferFilledSize += s; } return curlBufferFilledSize; } public: CurlRequestBody() : body_(NULL), sourceBufferTransmittedSize_(0) { } void SetBody(HttpClient::IRequestBody& body) { body_ = &body; sourceBufferTransmittedSize_ = 0; sourceBuffer_.clear(); } void Clear() { body_ = NULL; sourceBufferTransmittedSize_ = 0; sourceBuffer_.clear(); } bool IsValid() const { return body_ != NULL; } static size_t Callback(char *buffer, size_t size, size_t nitems, void *userdata) { try { assert(userdata != NULL); return reinterpret_cast<HttpClient::CurlRequestBody*>(userdata)-> CallbackInternal(buffer, size * nitems); } catch (OrthancException& e) { LOG(ERROR) << "Exception while streaming HTTP body: " << e.What(); return CURL_READFUNC_ABORT; } catch (...) { LOG(ERROR) << "Native exception while streaming HTTP body"; return CURL_READFUNC_ABORT; } } }; class HttpClient::CurlAnswer : public boost::noncopyable { private: HttpClient::IAnswer& answer_; bool headersLowerCase_; public: CurlAnswer(HttpClient::IAnswer& answer, bool headersLowerCase) : answer_(answer), headersLowerCase_(headersLowerCase) { } static size_t HeaderCallback(void *buffer, size_t size, size_t nmemb, void *userdata) { try { assert(userdata != NULL); CurlAnswer& that = *(static_cast<CurlAnswer*>(userdata)); size_t length = size * nmemb; if (length == 0) { return 0; } else { std::string s(reinterpret_cast<const char*>(buffer), length); std::size_t colon = s.find(':'); std::size_t eol = s.find("\r\n"); if (colon != std::string::npos && eol != std::string::npos) { std::string tmp(s.substr(0, colon)); if (that.headersLowerCase_) { Toolbox::ToLowerCase(tmp); } std::string key = Toolbox::StripSpaces(tmp); if (!key.empty()) { std::string value = Toolbox::StripSpaces(s.substr(colon + 1, eol)); that.answer_.AddHeader(key, value); } } return length; } } catch (OrthancException& e) { LOG(ERROR) << "Exception while streaming HTTP body: " << e.What(); return CURL_READFUNC_ABORT; } catch (...) { LOG(ERROR) << "Native exception while streaming HTTP body"; return CURL_READFUNC_ABORT; } } static size_t BodyCallback(void *buffer, size_t size, size_t nmemb, void *userdata) { try { assert(userdata != NULL); CurlAnswer& that = *(static_cast<CurlAnswer*>(userdata)); size_t length = size * nmemb; if (length == 0) { return 0; } else { that.answer_.AddChunk(buffer, length); return length; } } catch (OrthancException& e) { LOG(ERROR) << "Exception while streaming HTTP body: " << e.What(); return CURL_READFUNC_ABORT; } catch (...) { LOG(ERROR) << "Native exception while streaming HTTP body"; return CURL_READFUNC_ABORT; } } }; class HttpClient::DefaultAnswer : public HttpClient::IAnswer { private: ChunkedBuffer answer_; HttpHeaders* headers_; public: DefaultAnswer() : headers_(NULL) { } void SetHeaders(HttpHeaders& headers) { headers_ = &headers; headers_->clear(); } void FlattenBody(std::string& target) { answer_.Flatten(target); } virtual void AddHeader(const std::string& key, const std::string& value) { if (headers_ != NULL) { (*headers_) [key] = value; } } virtual void AddChunk(const void* data, size_t size) { answer_.AddChunk(data, size); } }; class HttpClient::GlobalParameters { private: boost::mutex mutex_; bool httpsVerifyPeers_; std::string httpsCACertificates_; std::string proxy_; long timeout_; bool verbose_; GlobalParameters() : httpsVerifyPeers_(true), timeout_(0), verbose_(false) { } public: // Singleton pattern static GlobalParameters& GetInstance() { static GlobalParameters parameters; return parameters; } void ConfigureSsl(bool httpsVerifyPeers, const std::string& httpsCACertificates) { boost::mutex::scoped_lock lock(mutex_); httpsVerifyPeers_ = httpsVerifyPeers; httpsCACertificates_ = httpsCACertificates; } void GetSslConfiguration(bool& httpsVerifyPeers, std::string& httpsCACertificates) { boost::mutex::scoped_lock lock(mutex_); httpsVerifyPeers = httpsVerifyPeers_; httpsCACertificates = httpsCACertificates_; } void SetDefaultProxy(const std::string& proxy) { LOG(INFO) << "Setting the default proxy for HTTP client connections: " << proxy; { boost::mutex::scoped_lock lock(mutex_); proxy_ = proxy; } } void GetDefaultProxy(std::string& target) { boost::mutex::scoped_lock lock(mutex_); target = proxy_; } void SetDefaultTimeout(long seconds) { LOG(INFO) << "Setting the default timeout for HTTP client connections: " << seconds << " seconds"; { boost::mutex::scoped_lock lock(mutex_); timeout_ = seconds; } } long GetDefaultTimeout() { boost::mutex::scoped_lock lock(mutex_); return timeout_; } #if ORTHANC_ENABLE_PKCS11 == 1 bool IsPkcs11Initialized() { boost::mutex::scoped_lock lock(mutex_); return Pkcs11::IsInitialized(); } void InitializePkcs11(const std::string& module, const std::string& pin, bool verbose) { boost::mutex::scoped_lock lock(mutex_); Pkcs11::Initialize(module, pin, verbose); } #endif bool IsDefaultVerbose() const { return verbose_; } void SetDefaultVerbose(bool verbose) { verbose_ = verbose; } }; struct HttpClient::PImpl { CURL* curl_; CurlHeaders defaultPostHeaders_; CurlHeaders defaultChunkedHeaders_; CurlHeaders userHeaders_; CurlRequestBody requestBody_; }; void HttpClient::ThrowException(HttpStatus status) { switch (status) { case HttpStatus_400_BadRequest: throw OrthancException(ErrorCode_BadRequest); case HttpStatus_401_Unauthorized: case HttpStatus_403_Forbidden: throw OrthancException(ErrorCode_Unauthorized); case HttpStatus_404_NotFound: throw OrthancException(ErrorCode_UnknownResource); default: throw OrthancException(ErrorCode_NetworkProtocol); } } /*static int CurlDebugCallback(CURL *handle, curl_infotype type, char *data, size_t size, void *userptr) { switch (type) { case CURLINFO_TEXT: case CURLINFO_HEADER_IN: case CURLINFO_HEADER_OUT: case CURLINFO_SSL_DATA_IN: case CURLINFO_SSL_DATA_OUT: case CURLINFO_END: case CURLINFO_DATA_IN: case CURLINFO_DATA_OUT: { std::string s(data, size); LOG(INFO) << "libcurl: " << s; break; } default: break; } return 0; }*/ void HttpClient::Setup() { pimpl_->defaultPostHeaders_.AddHeader("Expect", ""); pimpl_->defaultChunkedHeaders_.AddHeader("Expect", ""); pimpl_->defaultChunkedHeaders_.AddHeader("Transfer-Encoding", "chunked"); pimpl_->curl_ = curl_easy_init(); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_HEADERFUNCTION, &CurlAnswer::HeaderCallback)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_WRITEFUNCTION, &CurlAnswer::BodyCallback)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_HEADER, 0)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_FOLLOWLOCATION, 1)); // This fixes the "longjmp causes uninitialized stack frame" crash // that happens on modern Linux versions. // http://stackoverflow.com/questions/9191668/error-longjmp-causes-uninitialized-stack-frame CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_NOSIGNAL, 1)); url_ = ""; method_ = HttpMethod_Get; lastStatus_ = HttpStatus_None; SetVerbose(GlobalParameters::GetInstance().IsDefaultVerbose()); timeout_ = GlobalParameters::GetInstance().GetDefaultTimeout(); GlobalParameters::GetInstance().GetDefaultProxy(proxy_); GlobalParameters::GetInstance().GetSslConfiguration(verifyPeers_, caCertificates_); } HttpClient::HttpClient() : pimpl_(new PImpl), verifyPeers_(true), pkcs11Enabled_(false), headersToLowerCase_(true), redirectionFollowed_(true) { Setup(); } HttpClient::HttpClient(const WebServiceParameters& service, const std::string& uri) : pimpl_(new PImpl), verifyPeers_(true), headersToLowerCase_(true), redirectionFollowed_(true) { Setup(); if (service.GetUsername().size() != 0 && service.GetPassword().size() != 0) { SetCredentials(service.GetUsername().c_str(), service.GetPassword().c_str()); } if (!service.GetCertificateFile().empty()) { SetClientCertificate(service.GetCertificateFile(), service.GetCertificateKeyFile(), service.GetCertificateKeyPassword()); } SetPkcs11Enabled(service.IsPkcs11Enabled()); SetUrl(service.GetUrl() + uri); for (WebServiceParameters::Dictionary::const_iterator it = service.GetHttpHeaders().begin(); it != service.GetHttpHeaders().end(); ++it) { AddHeader(it->first, it->second); } } HttpClient::~HttpClient() { curl_easy_cleanup(pimpl_->curl_); } void HttpClient::SetBody(const std::string& data) { body_ = data; pimpl_->requestBody_.Clear(); } void HttpClient::SetBody(IRequestBody& body) { body_.clear(); pimpl_->requestBody_.SetBody(body); } void HttpClient::ClearBody() { body_.clear(); pimpl_->requestBody_.Clear(); } void HttpClient::SetVerbose(bool isVerbose) { isVerbose_ = isVerbose; if (isVerbose_) { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_VERBOSE, 1)); //CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_DEBUGFUNCTION, &CurlDebugCallback)); } else { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_VERBOSE, 0)); } } void HttpClient::AddHeader(const std::string& key, const std::string& value) { if (key.empty()) { throw OrthancException(ErrorCode_ParameterOutOfRange); } else { pimpl_->userHeaders_.AddHeader(key, value); } } void HttpClient::ClearHeaders() { pimpl_->userHeaders_.Clear(); } bool HttpClient::ApplyInternal(CurlAnswer& answer) { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_URL, url_.c_str())); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_HEADERDATA, &answer)); #if ORTHANC_ENABLE_SSL == 1 // Setup HTTPS-related options if (verifyPeers_) { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_CAINFO, caCertificates_.c_str())); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_SSL_VERIFYHOST, 2)); // libcurl default is strict verifyhost CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_SSL_VERIFYPEER, 1)); } else { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_SSL_VERIFYHOST, 0)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_SSL_VERIFYPEER, 0)); } #endif // Setup the HTTPS client certificate if (!clientCertificateFile_.empty() && pkcs11Enabled_) { throw OrthancException(ErrorCode_ParameterOutOfRange, "Cannot enable both client certificates and PKCS#11 authentication"); } if (pkcs11Enabled_) { #if ORTHANC_ENABLE_PKCS11 == 1 if (GlobalParameters::GetInstance().IsPkcs11Initialized()) { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_SSLENGINE, Pkcs11::GetEngineIdentifier())); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_SSLKEYTYPE, "ENG")); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_SSLCERTTYPE, "ENG")); } else { throw OrthancException(ErrorCode_BadSequenceOfCalls, "Cannot use PKCS#11 for a HTTPS request, " "because it has not been initialized"); } #else throw OrthancException(ErrorCode_InternalError, "This version of Orthanc is compiled without support for PKCS#11"); #endif } else if (!clientCertificateFile_.empty()) { #if ORTHANC_ENABLE_SSL == 1 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_SSLCERTTYPE, "PEM")); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_SSLCERT, clientCertificateFile_.c_str())); if (!clientCertificateKeyPassword_.empty()) { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_KEYPASSWD, clientCertificateKeyPassword_.c_str())); } // NB: If no "clientKeyFile_" is provided, the key must be // prepended to the certificate file if (!clientCertificateKeyFile_.empty()) { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_SSLKEYTYPE, "PEM")); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_SSLKEY, clientCertificateKeyFile_.c_str())); } #else throw OrthancException(ErrorCode_InternalError, "This version of Orthanc is compiled without OpenSSL support, " "cannot use HTTPS client authentication"); #endif } // Reset the parameters from previous calls to Apply() pimpl_->userHeaders_.Assign(pimpl_->curl_); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_HTTPGET, 0L)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POST, 0L)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_NOBODY, 0L)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_CUSTOMREQUEST, NULL)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POSTFIELDS, NULL)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POSTFIELDSIZE, 0L)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_PROXY, NULL)); if (redirectionFollowed_) { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_FOLLOWLOCATION, 1L)); } else { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_FOLLOWLOCATION, 0L)); } // Set timeouts if (timeout_ <= 0) { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_TIMEOUT, DEFAULT_HTTP_TIMEOUT)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_CONNECTTIMEOUT, DEFAULT_HTTP_TIMEOUT)); } else { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_TIMEOUT, timeout_)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_CONNECTTIMEOUT, timeout_)); } if (credentials_.size() != 0) { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_USERPWD, credentials_.c_str())); } if (proxy_.size() != 0) { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_PROXY, proxy_.c_str())); } switch (method_) { case HttpMethod_Get: CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_HTTPGET, 1L)); break; case HttpMethod_Post: CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POST, 1L)); break; case HttpMethod_Delete: CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_NOBODY, 1L)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_CUSTOMREQUEST, "DELETE")); break; case HttpMethod_Put: // http://stackoverflow.com/a/7570281/881731: Don't use // CURLOPT_PUT if there is a body // CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_PUT, 1L)); curl_easy_setopt(pimpl_->curl_, CURLOPT_CUSTOMREQUEST, "PUT"); /* !!! */ break; default: throw OrthancException(ErrorCode_InternalError); } if (method_ == HttpMethod_Post || method_ == HttpMethod_Put) { if (!pimpl_->userHeaders_.IsEmpty() && !pimpl_->userHeaders_.HasExpect()) { LOG(INFO) << "For performance, the HTTP header \"Expect\" should be set to empty string in POST/PUT requests"; } if (pimpl_->requestBody_.IsValid()) { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_READFUNCTION, CurlRequestBody::Callback)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_READDATA, &pimpl_->requestBody_)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POST, 1L)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POSTFIELDSIZE, -1L)); if (pimpl_->userHeaders_.IsEmpty()) { pimpl_->defaultChunkedHeaders_.Assign(pimpl_->curl_); } else if (!pimpl_->userHeaders_.IsChunkedTransfer()) { LOG(WARNING) << "The HTTP header \"Transfer-Encoding\" must be set to \"chunked\" " << "if streaming a chunked body in POST/PUT requests"; } } else { // Disable possible previous stream transfers CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_READFUNCTION, NULL)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_UPLOAD, 0)); if (pimpl_->userHeaders_.IsChunkedTransfer()) { LOG(WARNING) << "The HTTP header \"Transfer-Encoding\" must only be set " << "if streaming a chunked body in POST/PUT requests"; } if (pimpl_->userHeaders_.IsEmpty()) { pimpl_->defaultPostHeaders_.Assign(pimpl_->curl_); } if (body_.size() > 0) { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POSTFIELDS, body_.c_str())); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POSTFIELDSIZE, body_.size())); } else { CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POSTFIELDS, NULL)); CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POSTFIELDSIZE, 0)); } } } // Do the actual request CURLcode code; long status = 0; CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_WRITEDATA, &answer)); const boost::posix_time::ptime start = boost::posix_time::microsec_clock::universal_time(); if (boost::starts_with(url_, "https://")) { code = OrthancHttpClientPerformSSL(pimpl_->curl_, &status); } else { code = GetHttpStatus(curl_easy_perform(pimpl_->curl_), pimpl_->curl_, &status); } const boost::posix_time::ptime end = boost::posix_time::microsec_clock::universal_time(); LOG(INFO) << "HTTP status code " << status << " in " << ((end - start).total_milliseconds()) << " ms after " << EnumerationToString(method_) << " request on: " << url_; if (isVerbose_) { LOG(INFO) << "cURL status code: " << code; } CheckCode(code); if (status == 0) { // This corresponds to a call to an inexistent host lastStatus_ = HttpStatus_500_InternalServerError; } else { lastStatus_ = static_cast<HttpStatus>(status); } if (status >= 200 && status < 300) { return true; // Success } else { LOG(ERROR) << "Error in HTTP request, received HTTP status " << status << " (" << EnumerationToString(lastStatus_) << ")"; return false; } } bool HttpClient::ApplyInternal(std::string& answerBody, HttpHeaders* answerHeaders) { answerBody.clear(); DefaultAnswer answer; if (answerHeaders != NULL) { answer.SetHeaders(*answerHeaders); } CurlAnswer wrapper(answer, headersToLowerCase_); if (ApplyInternal(wrapper)) { answer.FlattenBody(answerBody); return true; } else { return false; } } bool HttpClient::ApplyInternal(Json::Value& answerBody, HttpClient::HttpHeaders* answerHeaders) { std::string s; if (ApplyInternal(s, answerHeaders)) { Json::Reader reader; return reader.parse(s, answerBody); } else { return false; } } void HttpClient::SetCredentials(const char* username, const char* password) { credentials_ = std::string(username) + ":" + std::string(password); } void HttpClient::ConfigureSsl(bool httpsVerifyPeers, const std::string& httpsVerifyCertificates) { #if ORTHANC_ENABLE_SSL == 1 if (httpsVerifyPeers) { if (httpsVerifyCertificates.empty()) { LOG(WARNING) << "No certificates are provided to validate peers, " << "set \"HttpsCACertificates\" if you need to do HTTPS requests"; } else { LOG(WARNING) << "HTTPS will use the CA certificates from this file: " << httpsVerifyCertificates; } } else { LOG(WARNING) << "The verification of the peers in HTTPS requests is disabled"; } #endif GlobalParameters::GetInstance().ConfigureSsl(httpsVerifyPeers, httpsVerifyCertificates); } void HttpClient::GlobalInitialize() { #if ORTHANC_ENABLE_SSL == 1 CheckCode(curl_global_init(CURL_GLOBAL_ALL)); #else CheckCode(curl_global_init(CURL_GLOBAL_ALL & ~CURL_GLOBAL_SSL)); #endif } void HttpClient::GlobalFinalize() { curl_global_cleanup(); #if ORTHANC_ENABLE_PKCS11 == 1 Pkcs11::Finalize(); #endif } void HttpClient::SetDefaultVerbose(bool verbose) { GlobalParameters::GetInstance().SetDefaultVerbose(verbose); } void HttpClient::SetDefaultProxy(const std::string& proxy) { GlobalParameters::GetInstance().SetDefaultProxy(proxy); } void HttpClient::SetDefaultTimeout(long timeout) { GlobalParameters::GetInstance().SetDefaultTimeout(timeout); } bool HttpClient::Apply(IAnswer& answer) { CurlAnswer wrapper(answer, headersToLowerCase_); return ApplyInternal(wrapper); } void HttpClient::ApplyAndThrowException(IAnswer& answer) { CurlAnswer wrapper(answer, headersToLowerCase_); if (!ApplyInternal(wrapper)) { ThrowException(GetLastStatus()); } } void HttpClient::ApplyAndThrowException(std::string& answerBody) { if (!Apply(answerBody)) { ThrowException(GetLastStatus()); } } void HttpClient::ApplyAndThrowException(Json::Value& answerBody) { if (!Apply(answerBody)) { ThrowException(GetLastStatus()); } } void HttpClient::ApplyAndThrowException(std::string& answerBody, HttpHeaders& answerHeaders) { if (!Apply(answerBody, answerHeaders)) { ThrowException(GetLastStatus()); } } void HttpClient::ApplyAndThrowException(Json::Value& answerBody, HttpHeaders& answerHeaders) { if (!Apply(answerBody, answerHeaders)) { ThrowException(GetLastStatus()); } } void HttpClient::SetClientCertificate(const std::string& certificateFile, const std::string& certificateKeyFile, const std::string& certificateKeyPassword) { if (certificateFile.empty()) { throw OrthancException(ErrorCode_ParameterOutOfRange); } if (!SystemToolbox::IsRegularFile(certificateFile)) { throw OrthancException(ErrorCode_InexistentFile, "Cannot open certificate file: " + certificateFile); } if (!certificateKeyFile.empty() && !SystemToolbox::IsRegularFile(certificateKeyFile)) { throw OrthancException(ErrorCode_InexistentFile, "Cannot open key file: " + certificateKeyFile); } clientCertificateFile_ = certificateFile; clientCertificateKeyFile_ = certificateKeyFile; clientCertificateKeyPassword_ = certificateKeyPassword; } void HttpClient::InitializePkcs11(const std::string& module, const std::string& pin, bool verbose) { #if ORTHANC_ENABLE_PKCS11 == 1 LOG(INFO) << "Initializing PKCS#11 using " << module << (pin.empty() ? " (no PIN provided)" : " (PIN is provided)"); GlobalParameters::GetInstance().InitializePkcs11(module, pin, verbose); #else throw OrthancException(ErrorCode_InternalError, "This version of Orthanc is compiled without support for PKCS#11"); #endif } }