mirror of https://github.com/PurpleI2P/i2pd.git
I2P: End-to-End encrypted and anonymous Internet
https://i2pd.website/
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232 lines
6.8 KiB
232 lines
6.8 KiB
#include <iostream> |
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#include <fstream> |
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#include <boost/regex.hpp> |
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#include <boost/filesystem.hpp> |
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#include <cryptopp/zinflate.h> |
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#include "I2PEndian.h" |
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#include "Reseed.h" |
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#include "Log.h" |
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#include "Identity.h" |
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#include "util.h" |
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namespace i2p |
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{ |
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namespace data |
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{ |
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static std::vector<std::string> httpReseedHostList = { |
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"http://193.150.121.66/netDb/", |
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"http://netdb.i2p2.no/", |
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"http://reseed.i2p-projekt.de/", |
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"http://cowpuncher.drollette.com/netdb/", |
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"http://i2p.mooo.com/netDb/", |
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"http://reseed.info/", |
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"http://uk.reseed.i2p2.no/", |
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"http://us.reseed.i2p2.no/", |
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"http://jp.reseed.i2p2.no/", |
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"http://i2p-netdb.innovatio.no/", |
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"http://ieb9oopo.mooo.com" |
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}; |
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//TODO: Remember to add custom port support. Not all serves on 443 |
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static std::vector<std::string> httpsReseedHostList = { |
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"https://193.150.121.66/netDb/", |
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"https://netdb.i2p2.no/", |
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"https://reseed.i2p-projekt.de/", |
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"https://cowpuncher.drollette.com/netdb/", |
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"https://i2p.mooo.com/netDb/", |
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"https://reseed.info/", |
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"https://i2p-netdb.innovatio.no/", |
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"https://ieb9oopo.mooo.com/", |
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"https://ssl.webpack.de/ivae2he9.sg4.e-plaza.de/" // Only HTTPS and SU3 (v2) support |
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}; |
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//TODO: Implement v2 reseeding. Lightweight zip library is needed. |
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//TODO: Implement SU3, utils. |
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Reseeder::Reseeder() |
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{ |
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} |
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Reseeder::~Reseeder() |
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{ |
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} |
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bool Reseeder::reseedNow() |
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{ |
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try |
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{ |
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// Seems like the best place to try to intercept with SSL |
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/*ssl_server = true; |
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try { |
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// SSL |
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} |
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catch (std::exception& e) |
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{ |
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LogPrint("Exception in SSL: ", e.what()); |
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}*/ |
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std::string reseedHost = httpReseedHostList[(rand() % httpReseedHostList.size())]; |
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LogPrint("Reseeding from ", reseedHost); |
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std::string content = i2p::util::http::httpRequest(reseedHost); |
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if (content == "") |
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{ |
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LogPrint("Reseed failed"); |
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return false; |
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} |
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boost::regex e("<\\s*A\\s+[^>]*href\\s*=\\s*\"([^\"]*)\"", boost::regex::normal | boost::regbase::icase); |
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boost::sregex_token_iterator i(content.begin(), content.end(), e, 1); |
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boost::sregex_token_iterator j; |
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//TODO: Ugly code, try to clean up. |
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//TODO: Try to reduce N number of variables |
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std::string name; |
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std::string routerInfo; |
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std::string tmpUrl; |
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std::string filename; |
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std::string ignoreFileSuffix = ".su3"; |
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boost::filesystem::path root = i2p::util::filesystem::GetDataDir(); |
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while (i != j) |
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{ |
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name = *i++; |
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if (name.find(ignoreFileSuffix)!=std::string::npos) |
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continue; |
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LogPrint("Downloading ", name); |
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tmpUrl = reseedHost; |
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tmpUrl.append(name); |
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routerInfo = i2p::util::http::httpRequest(tmpUrl); |
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if (routerInfo.size()==0) |
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continue; |
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filename = root.string(); |
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#ifndef _WIN32 |
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filename += "/netDb/r"; |
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#else |
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filename += "\\netDb\\r"; |
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#endif |
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filename += name.at(11); // first char in id |
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#ifndef _WIN32 |
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filename.append("/"); |
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#else |
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filename.append("\\"); |
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#endif |
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filename.append(name.c_str()); |
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std::ofstream outfile (filename, std::ios::binary); |
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outfile << routerInfo; |
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outfile.close(); |
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} |
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return true; |
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} |
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catch (std::exception& ex) |
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{ |
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//TODO: error reporting |
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return false; |
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} |
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return false; |
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} |
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const char SU3_MAGIC_NUMBER[]="I2Psu3"; |
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void ProcessSU3File (const char * filename) |
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{ |
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static uint32_t headerSignature = htole32 (0x04034B50); |
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std::ifstream s(filename, std::ifstream::binary); |
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if (s.is_open ()) |
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{ |
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char magicNumber[7]; |
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s.read (magicNumber, 7); // magic number and zero byte 6 |
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if (strcmp (magicNumber, SU3_MAGIC_NUMBER)) |
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{ |
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LogPrint (eLogError, "Unexpected SU3 magic number"); |
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return; |
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} |
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s.seekg (1, std::ios::cur); // su3 file format version |
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SigningKeyType signatureType; |
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s.read ((char *)&signatureType, 2); // signature type |
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signatureType = be16toh (signatureType); |
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uint16_t signatureLength; |
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s.read ((char *)&signatureLength, 2); // signature length |
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signatureLength = be16toh (signatureLength); |
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s.seekg (1, std::ios::cur); // unused |
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uint8_t versionLength; |
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s.read ((char *)&versionLength, 1); // version length |
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s.seekg (1, std::ios::cur); // unused |
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uint8_t signerIDLength; |
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s.read ((char *)&signerIDLength, 1); // signer ID length |
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uint64_t contentLength; |
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s.read ((char *)&contentLength, 8); // content length |
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contentLength = be64toh (contentLength); |
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s.seekg (1, std::ios::cur); // unused |
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uint8_t fileType; |
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s.read ((char *)&fileType, 1); // file type |
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if (fileType != 0x00) // zip file |
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{ |
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LogPrint (eLogError, "Can't handle file type ", (int)fileType); |
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return; |
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} |
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s.seekg (1, std::ios::cur); // unused |
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uint8_t contentType; |
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s.read ((char *)&contentType, 1); // content type |
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if (contentType != 0x03) // reseed data |
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{ |
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LogPrint (eLogError, "Unexpected content type ", (int)contentType); |
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return; |
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} |
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s.seekg (12, std::ios::cur); // unused |
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s.seekg (versionLength, std::ios::cur); // skip version |
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s.seekg (signerIDLength, std::ios::cur); // skip signer ID |
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// handle content |
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size_t contentPos = s.tellg (); |
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while (!s.eof ()) |
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{ |
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uint32_t signature; |
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s.read ((char *)&signature, 4); |
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if (signature == headerSignature) |
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{ |
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// next local file |
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s.seekg (14, std::ios::cur); // skip field we don't care about |
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uint32_t compressedSize, uncompressedSize; |
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s.read ((char *)&compressedSize, 4); |
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compressedSize = le32toh (compressedSize); |
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s.read ((char *)&uncompressedSize, 4); |
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uncompressedSize = le32toh (uncompressedSize); |
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uint16_t fileNameLength, extraFieldLength; |
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s.read ((char *)&fileNameLength, 2); |
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fileNameLength = le32toh (fileNameLength); |
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s.read ((char *)&extraFieldLength, 2); |
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extraFieldLength = le32toh (extraFieldLength); |
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char localFileName[255]; |
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s.read (localFileName, fileNameLength); |
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localFileName[fileNameLength] = 0; |
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s.seekg (extraFieldLength, std::ios::cur); |
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LogPrint (eLogDebug, "Proccessing file ", localFileName, " ", compressedSize, " bytes"); |
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uint8_t * compressed = new uint8_t[compressedSize]; |
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s.read ((char *)compressed, compressedSize); |
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CryptoPP::Inflator decompressor; |
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decompressor.Put (compressed, compressedSize); |
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delete[] compressed; |
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if (decompressor.MaxRetrievable () <= uncompressedSize) |
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{ |
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uint8_t * uncompressed = new uint8_t[uncompressedSize]; |
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decompressor.Get (uncompressed, decompressor.MaxRetrievable ()); |
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// TODO: save file |
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delete[] uncompressed; |
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} |
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else |
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LogPrint (eLogError, "Actual uncompressed size ", decompressor.MaxRetrievable (), " exceed ", uncompressedSize, " from header"); |
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} |
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else |
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break; // no more files |
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size_t end = s.tellg (); |
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if (end - contentPos >= contentLength) |
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break; // we are beyond contentLength |
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} |
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} |
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else |
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LogPrint (eLogError, "Can't open file ", filename); |
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} |
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} |
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} |
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