mirror of https://github.com/vitalif/grive2
127 lines
2.7 KiB
C++
127 lines
2.7 KiB
C++
/*
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grive: an GPL program to sync a local directory with Google Drive
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Copyright (C) 2012 Wan Wai Ho
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation version 2
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of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "Feed.hh"
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#include "http/Agent.hh"
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#include "http/Header.hh"
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#include "http/ResponseLog.hh"
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#include "http/XmlResponse.hh"
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#include "xml/NodeSet.hh"
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#include <boost/format.hpp>
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#include <cassert>
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namespace gr { namespace v1 {
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Feed::Feed( )
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{
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}
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Feed::Feed( const xml::Node& root ) :
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m_root ( root ),
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m_entries ( m_root["entry"] )
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{
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}
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void Feed::Assign( const xml::Node& root )
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{
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m_root = root ;
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m_entries = m_root["entry"] ;
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}
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Feed::iterator Feed::begin() const
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{
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return iterator( m_entries.begin() ) ;
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}
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Feed::iterator Feed::end() const
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{
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return iterator( m_entries.end() ) ;
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}
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std::string Feed::Next() const
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{
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xml::NodeSet nss = m_root["link"].Find( "@rel", "next" ) ;
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return nss.empty() ? "" : std::string(nss["@href"]) ;
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}
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void Feed::Start( http::Agent *http, const std::string& url )
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{
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http::XmlResponse xrsp ;
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http::ResponseLog log( &xrsp ) ;
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if ( m_log.get() != 0 )
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log.Reset(
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m_log->prefix,
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(boost::format( "-#%1%%2%" ) % m_log->sequence++ % m_log->suffix ).str(),
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&xrsp ) ;
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http->Get( url, &log, http::Header() ) ;
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m_root = xrsp.Response() ;
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m_entries = m_root["entry"] ;
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}
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bool Feed::GetNext( http::Agent *http )
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{
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assert( http != 0 ) ;
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xml::NodeSet nss = m_root["link"].Find( "@rel", "next" ) ;
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if ( !nss.empty() )
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{
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Start( http, nss["@href"] ) ;
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return true ;
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}
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else
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return false ;
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}
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Feed::iterator::iterator( )
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{
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}
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Feed::iterator::iterator( xml::Node::iterator i )
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{
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// for some reason, gcc 4.4.4 doesn't allow me to initialize the base class
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// in the initializer. I have no choice but to initialize here.
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base_reference() = i ;
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}
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Feed::iterator::reference Feed::iterator::dereference() const
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{
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return Entry( *base_reference() ) ;
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}
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void Feed::EnableLog( const std::string& prefix, const std::string& suffix )
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{
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m_log.reset( new LogInfo ) ;
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m_log->prefix = prefix ;
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m_log->suffix = suffix ;
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m_log->sequence = 0 ;
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}
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const xml::Node& Feed::Root() const
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{
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return m_root ;
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}
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} } // end of namespace gr::v1
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