mirror of https://github.com/vitalif/grive2
154 lines
3.8 KiB
C++
154 lines
3.8 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 "File.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 <algorithm>
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#include <iterator>
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#include <sstream>
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namespace gr {
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File::File( const Path& file )
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{
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}
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File::File( const Json& entry )
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{
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Update( entry ) ;
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}
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void File::Update( const Json& entry )
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{
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m_title = entry["title"]["$t"].Str() ;
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m_filename = entry["docs$suggestedFilename"]["$t"].Str() ;
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m_href = entry["content"]["src"].Str() ;
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m_parent = Parent( entry ) ;
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m_server_modified = DateTime( entry["updated"]["$t"].Str() ) ;
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m_etag = entry["gd$etag"].Str() ;
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m_server_md5 = entry.Has("docs$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"].FindInArray( "rel",
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"http://schemas.google.com/g/2005#resumable-edit-media" )["href"].Str() ;
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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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std::string File::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 File::Title() const
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{
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return m_title ;
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}
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std::string File::Filename() const
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{
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return m_filename ;
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}
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std::string File::Kind() const
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{
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return m_kind ;
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}
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std::string File::ServerMD5() const
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{
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return m_server_md5 ;
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}
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DateTime File::ServerModified() const
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{
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return m_server_modified ;
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}
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std::string File::Href() const
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{
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return m_href ;
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}
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std::string File::Parent() const
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{
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return m_parent ;
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}
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void File::Download( const Path& file, const http::Headers& auth ) const
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{
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http::GetFile( m_href, file.Str(), auth ) ;
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os::SetFileTime( file, m_server_modified ) ;
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}
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void File::Upload( std::streambuf *file, const http::Headers& auth )
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{
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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 http ;
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http.Put( m_upload_link, meta, hdr ) ;
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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.Put( http.RedirLocation(), data, uphdr ) ;
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}
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} // end of namespace
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