void cb_downloadStart(AuthServer_Private& client)
{
    START_REPLY(e_AuthToCli_FileDownloadChunk);

    // Trans ID
    uint32_t transId = DS::CryptRecvValue<uint32_t>(client.m_sock, client.m_crypt);
    client.m_buffer.write<uint32_t>(transId);

    // Download filename
    DS::String filename = DS::CryptRecvString(client.m_sock, client.m_crypt);

    // Ensure filename is jailed to our data path
    if (filename.find("..") != -1) {
        client.m_buffer.write<uint32_t>(DS::e_NetFileNotFound);
        client.m_buffer.write<uint32_t>(0);     // File size
        client.m_buffer.write<uint32_t>(0);     // Chunk offset
        client.m_buffer.write<uint32_t>(0);     // Data packet size
        SEND_REPLY();
        return;
    }
    filename.replace("\\", "/");

    filename = DS::Settings::AuthRoot() + filename;
    DS::FileStream* stream = new DS::FileStream();
    try {
        stream->open(filename.c_str(), "rb");
    } catch (const DS::FileIOException& ex) {
        fprintf(stderr, "[Auth] Could not open file %s: %s\n[Auth] Requested by %s\n",
                filename.c_str(), ex.what(), DS::SockIpAddress(client.m_sock).c_str());
        client.m_buffer.write<uint32_t>(DS::e_NetFileNotFound);
        client.m_buffer.write<uint32_t>(0);     // File size
        client.m_buffer.write<uint32_t>(0);     // Chunk offset
        client.m_buffer.write<uint32_t>(0);     // Data packet size
        SEND_REPLY();
        delete stream;
        return;
    }

    client.m_buffer.write<uint32_t>(DS::e_NetSuccess);
    client.m_buffer.write<uint32_t>(stream->size());
    client.m_buffer.write<uint32_t>(stream->tell());

    uint8_t data[CHUNK_SIZE];
    if (stream->size() > CHUNK_SIZE) {
        client.m_buffer.write<uint32_t>(CHUNK_SIZE);
        stream->readBytes(data, CHUNK_SIZE);
        client.m_buffer.writeBytes(data, CHUNK_SIZE);
        client.m_downloads[transId] = stream;
    } else {
        client.m_buffer.write<uint32_t>(stream->size());
        stream->readBytes(data, stream->size());
        client.m_buffer.writeBytes(data, stream->size());
        delete stream;
    }

    SEND_REPLY();
}
Exemple #2
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void cb_downloadStart(FileServer_Private& client)
{
    START_REPLY(e_FileToCli_FileDownloadReply);

    // Trans ID
    client.m_buffer.write<uint32_t>(DS::RecvValue<uint32_t>(client.m_sock));

    // Download filename
    chr16_t buffer[260];
    DS::RecvBuffer(client.m_sock, buffer, 260 * sizeof(chr16_t));
    buffer[259] = 0;
    DS::String filename = DS::String::FromUtf16(buffer);

    // Build ID
    uint32_t buildId = DS::RecvValue<uint32_t>(client.m_sock);
    if (buildId && buildId != CLIENT_BUILD_ID) {
        fprintf(stderr, "[File] Wrong Build ID from %s: %d\n",
                DS::SockIpAddress(client.m_sock).c_str(), buildId);
        DS::CloseSock(client.m_sock);
        return;
    }

    // Ensure filename is jailed to our data path
    if (filename.find("..") != -1) {
        client.m_buffer.write<uint32_t>(DS::e_NetFileNotFound);
        client.m_buffer.write<uint32_t>(0);     // Reader ID
        client.m_buffer.write<uint32_t>(0);     // File size
        client.m_buffer.write<uint32_t>(0);     // Data packet size
        SEND_REPLY();
        return;
    }
    filename.replace("\\", "/");

    filename = DS::Settings::FileRoot() + filename;
    DS::FileStream* stream = new DS::FileStream();
    try {
        stream->open(filename.c_str(), "rb");
    } catch (DS::FileIOException ex) {
        fprintf(stderr, "[File] Could not open file %s: %s\n[File] Requested by %s\n",
                filename.c_str(), ex.what(), DS::SockIpAddress(client.m_sock).c_str());
        client.m_buffer.write<uint32_t>(DS::e_NetFileNotFound);
        client.m_buffer.write<uint32_t>(0);     // Reader ID
        client.m_buffer.write<uint32_t>(0);     // File size
        client.m_buffer.write<uint32_t>(0);     // Data packet size
        SEND_REPLY();
        delete stream;
        return;
    }

    client.m_buffer.write<uint32_t>(DS::e_NetSuccess);
    client.m_buffer.write<uint32_t>(++client.m_readerId);
    client.m_buffer.write<uint32_t>(stream->size());

    uint8_t data[CHUNK_SIZE];
    if (stream->size() > CHUNK_SIZE) {
        client.m_buffer.write<uint32_t>(CHUNK_SIZE);
        stream->readBytes(data, CHUNK_SIZE);
        client.m_buffer.writeBytes(data, CHUNK_SIZE);
        client.m_downloads[client.m_readerId] = stream;
    } else {
        client.m_buffer.write<uint32_t>(stream->size());
        stream->readBytes(data, stream->size());
        client.m_buffer.writeBytes(data, stream->size());
        delete stream;
    }

    SEND_REPLY();
}