mirror of https://github.com/vitalif/grive2
244 lines
6.0 KiB
C++
244 lines
6.0 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 "Entry.hh"
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#include "CommonUri.hh"
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#include "http/Download.hh"
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#include "http/StringResponse.hh"
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#include "http/XmlResponse.hh"
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#include "protocol/Json.hh"
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#include "protocol/OAuth2.hh"
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#include "util/OS.hh"
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#include "util/Path.hh"
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#include "xml/Node.hh"
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#include "xml/NodeSet.hh"
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#include <algorithm>
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#include <iostream>
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#include <iterator>
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#include <sstream>
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namespace gr {
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Entry::Entry( const Path& file )
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{
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}
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Entry::Entry( const Json& entry )
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{
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Update( entry ) ;
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}
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Entry::Entry( const xml::Node& n )
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{
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Update( n ) ;
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}
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Entry::Entry( const std::string& title, const std::string& href ) :
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m_title( title ),
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m_self_href( href )
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{
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}
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void Entry::Update( const Json& entry )
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{
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m_title = entry["title"]["$t"].Str() ;
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m_filename = entry.Has("docs$suggestedFilename") ?
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entry["docs$suggestedFilename"]["$t"].Str() : "" ;
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m_content_src = entry["content"]["src"].Str() ;
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m_self_href = entry["link"].FindInArray( "rel", "self" )["href"].Str() ;
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m_parent_href = Parent( entry ) ;
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m_server_modified = DateTime( entry["updated"]["$t"].Str() ) ;
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m_etag = entry["gd$etag"].Str() ;
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m_resource_id = entry["gd$resourceId"]["$t"].Str() ;
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m_server_md5 = entry.Has("docs$md5Checksum") ?
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entry["docs$md5Checksum"]["$t"].Str() : "" ;
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Json node ;
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m_kind = entry["category"].
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FindInArray( "scheme", "http://schemas.google.com/g/2005#kind", node )
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? node["label"].Str() : std::string() ;
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m_upload_link = entry["link"].
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FindInArray( "rel", "http://schemas.google.com/g/2005#resumable-edit-media", node )
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? node["href"].Str() : std::string() ;
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// convert to lower case for easy comparison
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std::transform(
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m_server_md5.begin(),
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m_server_md5.end(),
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m_server_md5.begin(),
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tolower ) ;
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}
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void Entry::Update( const xml::Node& n )
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{
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m_title = n["title"] ;
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m_etag = n["@gd:etag"] ;
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m_filename = n["docs:suggestedFilename"] ;
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m_content_src = n["content"]["@src"] ;
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m_self_href = n["link"].Find( "@rel", "self" )["@href"] ;
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xml::NodeSet parents = n["link"].Find( "@rel", "http://schemas.google.com/docs/2007#parent" ) ;
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m_parent_hrefs.resize( parents.size() ) ;
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std::copy( parents.begin(), parents.end(), m_parent_hrefs.begin() ) ;
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}
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std::string Entry::Parent( const Json& entry )
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{
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Json node ;
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return entry["link"].FindInArray( "rel", "http://schemas.google.com/docs/2007#parent", node ) ?
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node["href"].Str() : std::string() ;
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}
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std::string Entry::Title() const
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{
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return m_title ;
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}
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std::string Entry::Filename() const
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{
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return m_filename ;
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}
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std::string Entry::Kind() const
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{
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return m_kind ;
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}
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std::string Entry::ServerMD5() const
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{
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return m_server_md5 ;
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}
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DateTime Entry::ServerModified() const
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{
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return m_server_modified ;
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}
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std::string Entry::SelfHref() const
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{
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return m_self_href ;
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}
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std::string Entry::ParentHref() const
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{
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return m_parent_href ;
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}
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void Entry::Download( gr::http::Agent* http, const Path& file, const http::Headers& auth ) const
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{
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gr::Download dl( file.Str(), Download::NoChecksum() ) ;
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long r = http->Get( m_content_src, &dl, auth ) ;
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if ( r <= 400 )
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os::SetFileTime( file, m_server_modified ) ;
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}
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bool Entry::Upload( gr::http::Agent* http, std::streambuf *file, const http::Headers& auth )
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{
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// upload link missing means that file is read only
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if ( m_upload_link.empty() )
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return false ;
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std::string meta =
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"<?xml version='1.0' encoding='UTF-8'?>\n"
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"<entry xmlns=\"http://www.w3.org/2005/Atom\" xmlns:docs=\"http://schemas.google.com/docs/2007\">"
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"<category scheme=\"http://schemas.google.com/g/2005#kind\" "
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"term=\"http://schemas.google.com/docs/2007#file\"/>"
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"<title>" + m_filename + "</title>"
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"</entry>" ;
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std::string data(
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(std::istreambuf_iterator<char>(file)),
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(std::istreambuf_iterator<char>()) ) ;
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std::ostringstream xcontent_len ;
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xcontent_len << "X-Upload-Content-Length: " << data.size() ;
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http::Headers hdr( auth ) ;
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hdr.push_back( "Content-Type: application/atom+xml" ) ;
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hdr.push_back( "X-Upload-Content-Type: application/octet-stream" ) ;
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hdr.push_back( xcontent_len.str() ) ;
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hdr.push_back( "If-Match: " + m_etag ) ;
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hdr.push_back( "Expect:" ) ;
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http::StringResponse str ;
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http->Put( m_upload_link, meta, &str, hdr ) ;
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std::string uplink = http->RedirLocation() ;
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// parse the header and find "Location"
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http::Headers uphdr ;
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uphdr.push_back( "Expect:" ) ;
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uphdr.push_back( "Accept:" ) ;
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http::XmlResponse xml ;
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http->Put( uplink, data, &xml, uphdr ) ;
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std::cout << xml.Response() << std::endl ;
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return true ;
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}
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std::string Entry::ResourceID() const
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{
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return m_resource_id ;
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}
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std::string Entry::ETag() const
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{
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return m_etag ;
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}
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void Entry::Delete( http::Agent *http, const http::Headers& auth )
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{
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http::Headers hdr( auth ) ;
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hdr.push_back( "If-Match: " + m_etag ) ;
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std::cout << root_url + "/" + m_resource_id + "?delete=true" << std::endl ;
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http::StringResponse str ;
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http->Custom( "DELETE", root_url + "/" + m_resource_id + "?delete=true", &str, hdr ) ;
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}
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void Entry::Swap( Entry& e )
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{
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m_title.swap( e.m_title ) ;
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m_filename.swap( e.m_filename ) ;
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m_kind.swap( e.m_kind ) ;
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m_server_md5.swap( e.m_server_md5 ) ;
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m_etag.swap( e.m_etag ) ;
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m_resource_id.swap( e.m_resource_id ) ;
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m_self_href.swap( e.m_self_href ) ;
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m_parent_href.swap( e.m_parent_href ) ;
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m_content_src.swap( e.m_content_src ) ;
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m_upload_link.swap( e.m_upload_link ) ;
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m_server_modified.Swap( e.m_server_modified ) ;
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}
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} // end of namespace
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