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#include "FbInternetBook.h"
#include "BaseThread.h"
#include "MyRuLibApp.h"
#include "FbBookEvent.h"
#include "FbCollection.h"
#include "FbConst.h"
#include "FbParams.h"
#include "FbDatabase.h"
#include "polarssl/md5.h"
#include <wx/filename.h>
#include <wx/wfstream.h>
#include <wx/zipstrm.h>
#include <wx/curl/http.h>
#include "FbDataPath.h"
#include "FbDateTime.h"
#include "controls/FbURL.h"
wxString FbInternetBook::GetURL(const int id, const wxString& md5sum)
{
wxString host = FbParams::GetStr(DB_DOWNLOAD_HOST);
if (FbParams::IsGenesis()) {
wxString key = md5sum.IsEmpty() ? FbCommonDatabase().GetMd5(id) : md5sum;
wxString addr = wxT("http://%s/get?nametype=orig&md5=%s");
return wxString::Format(addr, host.c_str(), key.c_str());
} else {
wxString addr = wxT("http://%s/b/%d/download");
return wxString::Format(addr, host.c_str(), id);
}
}
FbInternetBook::FbInternetBook(FbDownloader * owner, const wxString& md5sum)
: m_id(0), m_owner(owner), m_md5sum(md5sum), m_zipped(false)
{
wxString sql = wxT("SELECT id, file_type FROM books WHERE md5sum=? AND id>0");
FbCommonDatabase database;
wxSQLite3Statement stmt = database.PrepareStatement(sql);
stmt.Bind(1, md5sum);
wxSQLite3ResultSet result = stmt.ExecuteQuery();
if ( result.NextRow() ) {
m_id = result.GetInt(0);
m_filetype = result.GetString(1);
m_url = GetURL(m_id, m_md5sum);
}
}
bool FbInternetBook::Execute()
{
bool result = m_id && DoDownload();
SaveFile(result);
return result;
}
bool FbInternetBook::DoDownload()
{
wxString user = FbParams::GetStr(DB_DOWNLOAD_USER);
if ( user.IsEmpty() ) return DownloadUrl();
wxString host = FbParams::GetStr(DB_DOWNLOAD_HOST);
wxString pass = FbParams::GetStr(DB_DOWNLOAD_PASS);
wxString addr = wxString::Format(wxT("http://%s/b/%d/get?destination=b/%d/get"), host.c_str(), m_id, m_id);
FbLogMessage(_("Download"), addr);
FbURL url(addr);
if (url.GetError() != wxURL_NOERR) {
FbLogError(_("URL error"), m_url);
return false;
}
wxHTTP & http = (wxHTTP&)url.GetProtocol();
http.SetTimeout(FbParams::GetInt(FB_WEB_TIMEOUT));
http.SetHeader(wxT("Content-type"), wxT("application/x-www-form-urlencoded"));
wxString buffer = wxString::Format(wxT("form_id=user_login_block&name=%s&pass=%s"), user.c_str(), pass.c_str());
http.SetPostBuffer(buffer);
if (m_owner->IsClosed()) return false;
wxInputStream * in = url.GetInputStream();
if (url.GetError() != wxURL_NOERR) {
FbLogError(_("Connect error"), m_url);
return false;
}
wxString cookie = http.GetHeader(wxT("Set-Cookie")).BeforeFirst(wxT(';'));
if (http.GetResponse() == 302) {
m_url = http.GetHeader(wxT("Location"));
FbLogMessage(_("Redirect"), m_url);
return DownloadUrl(cookie);
}
bool ok = ReadFile(in);
if ( !ok ) { FbLogError(_("Authentication failure"), m_url); }
return ok;
}
bool FbInternetBook::DownloadUrl(const wxString &cookie)
{
if (m_owner->IsClosed()) return false;
m_filename = wxFileName::CreateTempFileName(wxT("~"));
wxCurlHTTP url(m_url);
url.SetOpt(CURLOPT_TIMEOUT, FbParams::GetInt(FB_WEB_TIMEOUT));
url.SetOpt(CURLOPT_CONNECTTIMEOUT, FbParams::GetInt(FB_WEB_TIMEOUT));
bool ok = url.Get(m_filename);
if (!ok) {
FbLogError(_("Connect error"), m_url);
return false;
}
return ok;
}
bool FbInternetBook::ReadFile(wxInputStream * in)
{
m_filename = wxFileName::CreateTempFileName(wxT("~"));
wxFileOutputStream out(m_filename);
const size_t BUFSIZE = 1024;
unsigned char buf[BUFSIZE];
size_t size = in->GetSize() ? in->GetSize() : 0xFFFFFF;
size_t count = 0;
size_t pos = 0;
bool zipped = false;
md5_context md5;
md5_starts( &md5 );
do {
if (m_owner->IsClosed()) return false;
FbProgressEvent(ID_PROGRESS_UPDATE, m_url, pos * 1000 / size, _("File download")).Post();
count = in->Read(buf, BUFSIZE).LastRead();
if ( count ) md5_update( &md5, buf, (int) count );
if ( pos==0 && count>1 && buf[0]=='P' && buf[1]=='K') zipped = true;
out.Write(buf, count);
pos += count;
} while (count);
if (m_owner->IsClosed()) return false;
FbProgressEvent(ID_PROGRESS_UPDATE).Post();
if (size != (size_t)-1 && out.GetSize() !=size) {
wxLogError(_("HTTP read error, read %d of %d bytes: %s"), out.GetSize(), size, m_url.c_str());
return false;
}
wxString md5sum = BaseThread::CalcMd5(md5);
if ( md5sum == m_md5sum )
return true;
else if ( zipped )
return CheckZip();
FbLogError(_("Download error"), m_url);
return false;
}
bool FbInternetBook::CheckZip()
{
wxFFileInputStream in(m_filename);
wxZipInputStream zip(in);
bool bNotFound = true;
while (wxZipEntry * entry = zip.GetNextEntry()) {
bool ok = (entry->GetInternalName().Right(4).Lower() != wxT(".fbd"));
if (ok) bNotFound = ! zip.OpenEntry(*entry);
delete entry;
if (ok) break;
}
if (bNotFound) {
FbLogError(_("Can't open zip"), m_url);
return false;
}
const size_t BUFSIZE = 1024;
unsigned char buf[BUFSIZE];
size_t count;
md5_context md5;
md5_starts( &md5 );
do {
count = zip.Read(buf, BUFSIZE).LastRead();
if (count) md5_update( &md5, buf, (int) count );
} while (count);
wxString md5sum = BaseThread::CalcMd5(md5);
if ( md5sum == m_md5sum ) {
m_zipped = true;
} else {
FbLogError(_("Wrong MD5 sum"), m_url);
return false;
}
return true;
}
void FbInternetBook::SaveFile(const bool success)
{
if (success) {
wxFileName zipname = FbDownloader::GetFilename(m_md5sum, true);
if (m_zipped) zipname.SetExt(wxT("zip"));
wxRenameFile(m_filename, zipname.GetFullPath(), true);
} else {
wxRemoveFile(m_filename);
}
if (m_owner->IsClosed()) return;
wxString sql = wxT("UPDATE states SET download=? WHERE md5sum=?");
int code = success ? FbDateTime::Today().Code() : 1;
FbLocalDatabase database;
wxSQLite3Statement stmt = database.PrepareStatement(sql);
stmt.Bind(1, code);
stmt.Bind(2, m_md5sum);
stmt.ExecuteUpdate();
if (m_owner->IsClosed()) return;
if (success) {
FbCollection::ResetBook(m_id);
FbCollection::ResetInfo(m_id);
FbFolderEvent(ID_UPDATE_FOLDER, 0, FT_DOWNLOAD).Post();
// FbCommandEvent(fbEVT_BOOK_ACTION, ID_UPDATE_BOOK, m_id).Post();
FbLogMessage(_("Download finished"), m_url);
}
{
FbMasterDownInfo info = FbMasterDownInfo::DT_WAIT;
FbMasterEvent(ID_UPDATE_MASTER, info, m_id, false).Post();
}
{
FbMasterDownInfo info = success ? FbMasterDownInfo::DT_READY : FbMasterDownInfo::DT_ERROR;
FbMasterEvent(ID_UPDATE_MASTER, info, m_id, true).Post();
}
}
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