/*
- * Copyright (c) 2017 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2024 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <dali/internal/imaging/common/file-download.h>
// EXTERNAL INCLUDES
+#include <curl/curl.h>
#include <dali/integration-api/debug.h>
#include <pthread.h>
-#include <curl/curl.h>
+#include <cstdlib>
#include <cstring>
+#include <sstream>
// INTERNAL INCLUDES
+#include <dali/devel-api/adaptor-framework/environment-variable.h>
+#include <dali/internal/system/common/environment-variables.h>
#include <dali/internal/system/common/file-writer.h>
-
-#ifdef TPK_CURL_ENABLED
-#include <tpkp_curl.h>
-#endif // TPK_CURL_ENABLED
+#include <dali/public-api/common/dali-common.h>
using namespace Dali::Integration;
namespace Dali
{
-
namespace TizenPlatform
{
-
namespace // unnamed namespace
{
+const char* HTTP_PROXY_ENV = "http_proxy";
+
+inline void LogCurlResult(CURLcode result, char* errorBuffer, std::string url, std::string prefix)
+{
+ if(result != CURLE_OK)
+ {
+ if(errorBuffer != nullptr)
+ {
+ DALI_LOG_ERROR("%s \"%s\" with error code %d\n", prefix.c_str(), url.c_str(), result);
+ }
+ else
+ {
+ DALI_LOG_ERROR("%s \"%s\" with error code %d (%s)\n", prefix.c_str(), url.c_str(), result, errorBuffer);
+ }
+ }
+}
+
+std::string ConvertDataReadable(uint8_t* data, const size_t size, const size_t width)
+{
+ std::ostringstream oss;
+
+ for(size_t i = 0u; i < size; ++i)
+ {
+ if(i > 0u && (i % width) == 0u)
+ {
+ oss << '\n';
+ }
+ oss << ((data[i] >= 0x20 && data[i] < 0x80) ? static_cast<char>(data[i]) : '.');
+ }
+
+ return oss.str();
+}
+
+int CurloptVerboseLogTrace(CURL* handle, curl_infotype type, char* data, size_t size, void* clientp)
+{
+ std::ostringstream oss;
+ (void)handle; /* prevent compiler warning */
+ (void)clientp;
+
+ switch(type)
+ {
+ case CURLINFO_TEXT:
+ {
+ oss << "== Info: " << std::string(data, size) << "\n";
+
+ DALI_FALLTHROUGH;
+ }
+ default: /* in case a new one is introduced to shock us */
+ {
+ return 0;
+ }
+
+ case CURLINFO_HEADER_OUT:
+ {
+ oss << "=> Send header\n";
+ break;
+ }
+ case CURLINFO_DATA_OUT:
+ {
+ oss << "=> Send data\n";
+ break;
+ }
+ case CURLINFO_SSL_DATA_OUT:
+ {
+ oss << "=> Send SSL data\n";
+ break;
+ }
+ case CURLINFO_HEADER_IN:
+ {
+ oss << "<= Recv header\n";
+ break;
+ }
+ case CURLINFO_DATA_IN:
+ {
+ oss << "<= Recv data\n";
+ break;
+ }
+ case CURLINFO_SSL_DATA_IN:
+ {
+ oss << "<= Recv SSL data\n";
+ break;
+ }
+ }
+
+ oss << "data size : " << size << " bytes\n";
+ oss << "data : \n";
+ oss << ConvertDataReadable(reinterpret_cast<uint8_t*>(data), size, 0x40);
+
+ DALI_LOG_DEBUG_INFO("Verbose curl log : %s", oss.str().c_str());
+
+ return 0;
+}
+
+const int CONNECTION_TIMEOUT_SECONDS(30L);
+const int TIMEOUT_SECONDS(120L);
+const long CLOSE_CONNECTION_ON_ERROR = 1L; // 0 == off, 1 == on
+const long EXCLUDE_HEADER = 0L;
+const long INCLUDE_HEADER = 1L;
+const long INCLUDE_BODY = 0L;
+const long EXCLUDE_BODY = 1L;
+
+/**
+ * @brief Get the Curlopt Verbose Mode value from environment.
+ *
+ * @return 0 if verbose mode off. 1 if verbose mode on.
+ */
+long GetCurloptVerboseMode()
+{
+ static long verboseMode = 0;
+ static bool verboseModeSetted = false;
+ if(DALI_UNLIKELY(!verboseModeSetted))
+ {
+ auto verboseModeString = EnvironmentVariable::GetEnvironmentVariable(DALI_ENV_CURLOPT_VERBOSE_MODE);
+ verboseMode = verboseModeString ? (std::strtol(verboseModeString, nullptr, 10) > 0 ? 1 : 0) : 0;
+ }
-const int CONNECTION_TIMEOUT_SECONDS( 30L );
-const int TIMEOUT_SECONDS( 120L );
-const long VERBOSE_MODE = 0L; // 0 == off, 1 == on
-const long CLOSE_CONNECTION_ON_ERROR = 1L; // 0 == off, 1 == on
-const long EXCLUDE_HEADER = 0L;
-const long INCLUDE_HEADER = 1L;
-const long INCLUDE_BODY = 0L;
-const long EXCLUDE_BODY = 1L;
+ return verboseMode;
+}
/**
* Curl library environment. Direct initialize ensures it's constructed before adaptor
*/
static Dali::TizenPlatform::Network::CurlEnvironment gCurlEnvironment;
-void ConfigureCurlOptions( CURL* curlHandle, const std::string& url )
+void ConfigureCurlOptions(CURL* curlHandle, const std::string& url)
{
- curl_easy_setopt( curlHandle, CURLOPT_URL, url.c_str() );
- curl_easy_setopt( curlHandle, CURLOPT_VERBOSE, VERBOSE_MODE );
+ auto verboseMode = GetCurloptVerboseMode(); // 0 : off, 1 : on
+
+ curl_easy_setopt(curlHandle, CURLOPT_URL, url.c_str());
+ curl_easy_setopt(curlHandle, CURLOPT_VERBOSE, verboseMode);
// CURLOPT_FAILONERROR is not fail-safe especially when authentication is involved ( see manual )
// Removed CURLOPT_FAILONERROR option
- curl_easy_setopt( curlHandle, CURLOPT_CONNECTTIMEOUT, CONNECTION_TIMEOUT_SECONDS );
- curl_easy_setopt( curlHandle, CURLOPT_TIMEOUT, TIMEOUT_SECONDS );
- curl_easy_setopt( curlHandle, CURLOPT_HEADER, INCLUDE_HEADER );
- curl_easy_setopt( curlHandle, CURLOPT_NOBODY, EXCLUDE_BODY );
-
-#ifdef TPK_CURL_ENABLED
- // Apply certificate pinning on Tizen
- curl_easy_setopt( curlHandle, CURLOPT_SSL_CTX_FUNCTION, tpkp_curl_ssl_ctx_callback );
-#endif // TPK_CURL_ENABLED
+ curl_easy_setopt(curlHandle, CURLOPT_CONNECTTIMEOUT, CONNECTION_TIMEOUT_SECONDS);
+ curl_easy_setopt(curlHandle, CURLOPT_TIMEOUT, TIMEOUT_SECONDS);
+ curl_easy_setopt(curlHandle, CURLOPT_HEADER, INCLUDE_HEADER);
+ curl_easy_setopt(curlHandle, CURLOPT_NOBODY, EXCLUDE_BODY);
+ curl_easy_setopt(curlHandle, CURLOPT_NOSIGNAL, 1L);
+ curl_easy_setopt(curlHandle, CURLOPT_FOLLOWLOCATION, 1L);
+ curl_easy_setopt(curlHandle, CURLOPT_MAXREDIRS, 5L);
+
+ if(verboseMode != 0)
+ {
+ curl_easy_setopt(curlHandle, CURLOPT_DEBUGFUNCTION, CurloptVerboseLogTrace);
+ }
+
+ // If the proxy variable is set, ensure it's also used.
+ // In theory, this variable should be used by the curl library; however, something
+ // is overriding it.
+ const char* proxy = Dali::EnvironmentVariable::GetEnvironmentVariable(HTTP_PROXY_ENV);
+ if(proxy != nullptr)
+ {
+ curl_easy_setopt(curlHandle, CURLOPT_PROXY, proxy);
+ }
}
// Without a write function or a buffer (file descriptor) to write to, curl will pump out
// header/body contents to stdout
-size_t DummyWrite(char *ptr, size_t size, size_t nmemb, void *userdata)
+size_t DummyWrite(char* ptr, size_t size, size_t nmemb, void* userdata)
{
return size * nmemb;
}
struct ChunkData
{
- std::vector< uint8_t > data;
+ std::vector<uint8_t> data;
};
-size_t ChunkLoader(char *ptr, size_t size, size_t nmemb, void *userdata)
+size_t ChunkLoader(char* ptr, size_t size, size_t nmemb, void* userdata)
{
- std::vector<ChunkData>* chunks = static_cast<std::vector<ChunkData>*>( userdata );
- int numBytes = size*nmemb;
- chunks->push_back( ChunkData() );
- ChunkData& chunkData = (*chunks)[chunks->size()-1];
- chunkData.data.reserve( numBytes );
- memcpy( &chunkData.data[0], ptr, numBytes );
+ std::vector<ChunkData>* chunks = static_cast<std::vector<ChunkData>*>(userdata);
+ int numBytes = size * nmemb;
+ chunks->push_back(ChunkData());
+ ChunkData& chunkData = (*chunks)[chunks->size() - 1];
+ chunkData.data.reserve(numBytes);
+ memcpy(&chunkData.data[0], ptr, numBytes);
return numBytes;
}
-
-CURLcode DownloadFileDataWithSize( CURL* curlHandle, Dali::Vector<uint8_t>& dataBuffer, size_t dataSize )
+CURLcode DownloadFileDataWithSize(CURL* curlHandle, Dali::Vector<uint8_t>& dataBuffer, size_t dataSize)
{
- CURLcode result( CURLE_OK );
+ CURLcode result(CURLE_OK);
// create
- Dali::Internal::Platform::FileWriter fileWriter( dataBuffer, dataSize );
- FILE* dataBufferFilePointer = fileWriter.GetFile();
- if( NULL != dataBufferFilePointer )
+ Dali::Internal::Platform::FileWriter fileWriter(dataBuffer, dataSize);
+ FILE* dataBufferFilePointer = fileWriter.GetFile();
+
+ if(NULL != dataBufferFilePointer)
{
+ setbuf(dataBufferFilePointer, NULL); // Turn buffering off
+
// we only want the body which contains the file data
- curl_easy_setopt( curlHandle, CURLOPT_HEADER, EXCLUDE_HEADER );
- curl_easy_setopt( curlHandle, CURLOPT_NOBODY, INCLUDE_BODY );
+ curl_easy_setopt(curlHandle, CURLOPT_HEADER, EXCLUDE_HEADER);
+ curl_easy_setopt(curlHandle, CURLOPT_NOBODY, INCLUDE_BODY);
// disable the write callback, and get curl to write directly into our data buffer
- curl_easy_setopt( curlHandle, CURLOPT_WRITEFUNCTION, NULL );
- curl_easy_setopt( curlHandle, CURLOPT_WRITEDATA, dataBufferFilePointer );
+ curl_easy_setopt(curlHandle, CURLOPT_WRITEFUNCTION, NULL);
+ curl_easy_setopt(curlHandle, CURLOPT_WRITEDATA, dataBufferFilePointer);
// synchronous request of the body data
- result = curl_easy_perform( curlHandle );
+ result = curl_easy_perform(curlHandle);
+ }
+ else
+ {
+ DALI_LOG_ERROR("Fail to open buffer writter with size : %zu!\n", dataSize);
+ // @todo : Need to check that is it correct error code?
+ result = CURLE_READ_ERROR;
}
return result;
}
-CURLcode DownloadFileDataByChunk( CURL* curlHandle, Dali::Vector<uint8_t>& dataBuffer, size_t& dataSize )
+CURLcode DownloadFileDataByChunk(CURL* curlHandle, Dali::Vector<uint8_t>& dataBuffer, size_t& dataSize)
{
// create
- std::vector< ChunkData > chunks;
+ std::vector<ChunkData> chunks;
// we only want the body which contains the file data
- curl_easy_setopt( curlHandle, CURLOPT_HEADER, EXCLUDE_HEADER );
- curl_easy_setopt( curlHandle, CURLOPT_NOBODY, INCLUDE_BODY );
+ curl_easy_setopt(curlHandle, CURLOPT_HEADER, EXCLUDE_HEADER);
+ curl_easy_setopt(curlHandle, CURLOPT_NOBODY, INCLUDE_BODY);
// Enable the write callback.
- curl_easy_setopt( curlHandle, CURLOPT_WRITEFUNCTION, ChunkLoader );
- curl_easy_setopt( curlHandle, CURLOPT_WRITEDATA, &chunks );
+ curl_easy_setopt(curlHandle, CURLOPT_WRITEFUNCTION, ChunkLoader);
+ curl_easy_setopt(curlHandle, CURLOPT_WRITEDATA, &chunks);
// synchronous request of the body data
- CURLcode result = curl_easy_perform( curlHandle );
+ CURLcode result = curl_easy_perform(curlHandle);
// chunks should now contain all of the chunked data. Reassemble into a single vector
dataSize = 0;
- for( size_t i=0; i<chunks.size() ; ++i )
+ for(size_t i = 0; i < chunks.size(); ++i)
{
dataSize += chunks[i].data.capacity();
}
- dataBuffer.Resize(dataSize);
+ dataBuffer.ResizeUninitialized(dataSize);
- size_t offset = 0;
- for( size_t i=0; i<chunks.size() ; ++i )
+ if(DALI_LIKELY(dataSize > 0))
{
- memcpy( &dataBuffer[offset], &chunks[i].data[0], chunks[i].data.capacity() );
- offset += chunks[i].data.capacity();
+ std::uint8_t* dataBufferPtr = dataBuffer.Begin();
+ for(size_t i = 0; i < chunks.size(); ++i)
+ {
+ memcpy(dataBufferPtr, &chunks[i].data[0], chunks[i].data.capacity());
+ dataBufferPtr += chunks[i].data.capacity();
+ }
}
return result;
}
-bool DownloadFile( CURL* curlHandle,
- const std::string& url,
- Dali::Vector<uint8_t>& dataBuffer,
- size_t& dataSize,
- size_t maximumAllowedSizeBytes )
+bool DownloadFile(CURL* curlHandle,
+ const std::string& url,
+ Dali::Vector<uint8_t>& dataBuffer,
+ size_t& dataSize,
+ size_t maximumAllowedSizeBytes,
+ char* errorBuffer)
{
- CURLcode result( CURLE_OK );
- double size(0);
+ CURLcode result(CURLE_OK);
// setup curl to download just the header so we can extract the content length
- ConfigureCurlOptions( curlHandle, url );
-
- curl_easy_setopt( curlHandle, CURLOPT_WRITEFUNCTION, DummyWrite);
+ ConfigureCurlOptions(curlHandle, url);
+ curl_easy_setopt(curlHandle, CURLOPT_WRITEFUNCTION, DummyWrite);
+ if(errorBuffer != nullptr)
+ {
+ errorBuffer[0] = 0;
+ }
// perform the request to get the header
- result = curl_easy_perform( curlHandle );
+ result = curl_easy_perform(curlHandle);
- if( result != CURLE_OK)
+ if(result != CURLE_OK)
{
- DALI_LOG_ERROR( "Failed to download http header for \"%s\" with error code %d\n", url.c_str(), result );
+ if(errorBuffer != nullptr)
+ {
+ DALI_LOG_ERROR("Failed to download http header for \"%s\" with error code %d (%s)\n", url.c_str(), result, &errorBuffer[0]);
+ }
+ else
+ {
+ DALI_LOG_ERROR("Failed to download http header for \"%s\" with error code %d\n", url.c_str(), result);
+ }
return false;
}
// get the content length, -1 == size is not known
- curl_easy_getinfo( curlHandle,CURLINFO_CONTENT_LENGTH_DOWNLOAD , &size );
-
+ curl_off_t size{0};
+ curl_easy_getinfo(curlHandle, CURLINFO_CONTENT_LENGTH_DOWNLOAD_T, &size);
- if( size >= maximumAllowedSizeBytes )
+ if(size == -1)
{
- DALI_LOG_ERROR( "File content length %f > max allowed %zu \"%s\" \n", size, maximumAllowedSizeBytes, url.c_str() );
- return false;
+ result = DownloadFileDataByChunk(curlHandle, dataBuffer, dataSize);
}
- else if( size > 0 )
+ else if(size >= static_cast<curl_off_t>(maximumAllowedSizeBytes))
{
- // If we know the size up front, allocate once and avoid chunk copies.
- dataSize = static_cast<size_t>( size );
- result = DownloadFileDataWithSize( curlHandle, dataBuffer, dataSize );
+ DALI_LOG_ERROR("File content length %" CURL_FORMAT_CURL_OFF_T " > max allowed %zu \"%s\" \n", size, maximumAllowedSizeBytes, url.c_str());
+ return false;
}
else
{
- result = DownloadFileDataByChunk( curlHandle, dataBuffer, dataSize );
+ // If we know the size up front, allocate once and avoid chunk copies.
+ dataSize = static_cast<size_t>(size);
+ result = DownloadFileDataWithSize(curlHandle, dataBuffer, dataSize);
+ if(result != CURLE_OK)
+ {
+ LogCurlResult(result, errorBuffer, url, "Failed to download file, trying to load by chunk");
+ // In the case where the size is wrong (e.g. on a proxy server that rewrites data),
+ // the data buffer will be corrupt. In this case, try again using the chunk writer.
+ result = DownloadFileDataByChunk(curlHandle, dataBuffer, dataSize);
+ }
}
- if( result != CURLE_OK )
+ LogCurlResult(result, errorBuffer, url, "Failed to download image file");
+
+ if(result != CURLE_OK)
{
- DALI_LOG_ERROR( "Failed to download image file \"%s\" with error code %d\n", url.c_str(), result );
return false;
}
+ else if(DALI_UNLIKELY(dataSize == 0u))
+ {
+ DALI_LOG_WARNING("Warning : Download data size is 0! url : %s\n", url.c_str());
+ }
return true;
}
-
} // unnamed namespace
-
namespace Network
{
-
CurlEnvironment::CurlEnvironment()
{
// Must be called before we attempt any loads. e.g. by using curl_easy_init()
curl_global_cleanup();
}
-bool DownloadRemoteFileIntoMemory( const std::string& url,
- Dali::Vector<uint8_t>& dataBuffer,
- size_t& dataSize,
- size_t maximumAllowedSizeBytes )
+bool DownloadRemoteFileIntoMemory(const std::string& url,
+ Dali::Vector<uint8_t>& dataBuffer,
+ size_t& dataSize,
+ size_t maximumAllowedSizeBytes)
{
bool result = false;
- if( url.empty() )
+ if(url.empty())
{
DALI_LOG_WARNING("empty url requested \n");
return false;
// thread we need to explicity call curl_global_init() on startup from a single thread.
CURL* curlHandle = curl_easy_init();
- if ( curlHandle )
+ if(curlHandle)
{
- result = DownloadFile( curlHandle, url, dataBuffer, dataSize, maximumAllowedSizeBytes);
+ std::vector<char> errorBuffer(CURL_ERROR_SIZE);
+ curl_easy_setopt(curlHandle, CURLOPT_ERRORBUFFER, &errorBuffer[0]);
+ result = DownloadFile(curlHandle, url, dataBuffer, dataSize, maximumAllowedSizeBytes, &errorBuffer[0]);
// clean up session
- curl_easy_cleanup( curlHandle );
-
-#ifdef TPK_CURL_ENABLED
- // Clean up tpkp(the module for certificate pinning) resources on Tizen
- tpkp_curl_cleanup();
-#endif // TPK_CURL_ENABLED
+ curl_easy_cleanup(curlHandle);
}
return result;
}