115 lines
3.4 KiB
C++
115 lines
3.4 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: webviewfilehandler.cpp
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// Purpose: Custom webview handler to allow archive browsing
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// Author: Steven Lamerton
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// Copyright: (c) 2011 Steven Lamerton
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#if wxUSE_WEBVIEW
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#include "wx/webviewarchivehandler.h"
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#include "wx/filesys.h"
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//Taken from wx/filesys.cpp
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static wxString EscapeFileNameCharsInURL(const char *in)
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{
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wxString s;
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for ( const unsigned char *p = (const unsigned char*)in; *p; ++p )
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{
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const unsigned char c = *p;
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if ( c == '/' || c == '-' || c == '.' || c == '_' || c == '~' ||
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(c >= '0' && c <= '9') ||
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(c >= 'a' && c <= 'z') ||
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(c >= 'A' && c <= 'Z') )
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{
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s << c;
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}
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else
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{
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s << wxString::Format("%%%02x", c);
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}
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}
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return s;
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}
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wxWebViewArchiveHandler::wxWebViewArchiveHandler(const wxString& scheme) :
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wxWebViewHandler(scheme)
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{
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m_fileSystem = new wxFileSystem();
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}
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wxWebViewArchiveHandler::~wxWebViewArchiveHandler()
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{
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wxDELETE(m_fileSystem);
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}
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wxFSFile* wxWebViewArchiveHandler::GetFile(const wxString &uri)
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{
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//If there is a fragment at the end of the path then we need to strip it
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//off as not all backends do this for us
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wxString path = uri;
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size_t hashloc = uri.find('#');
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if(hashloc != wxString::npos)
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{
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path = uri.substr(0, hashloc);
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}
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//We iterate through the string to see if there is a protocol description
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size_t start = wxString::npos;
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for(size_t i = 0; i < path.length(); i++)
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{
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if(path[i] == ';' && path.substr(i, 10) == ";protocol=")
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{
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start = i;
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break;
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}
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}
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//We do not have a protocol string so we just pass the path withouth the
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if(start == wxString::npos)
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{
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size_t doubleslash = path.find("//");
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//The path is incorrectly formed without // after the scheme
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if(doubleslash == wxString::npos)
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return NULL;
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wxString fspath = "file:" +
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EscapeFileNameCharsInURL(path.substr(doubleslash + 2).utf8_str());
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return m_fileSystem->OpenFile(fspath);
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}
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//Otherwise we need to extract the protocol
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else
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{
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size_t end = path.find('/', start);
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//For the path to be valid there must to a path after the protocol
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if(end == wxString::npos)
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{
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return NULL;
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}
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wxString mainpath = path.substr(0, start);
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wxString archivepath = path.substr(end);
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wxString protstring = path.substr(start, end - start);
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wxString protocol = protstring.substr(10);
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//We can now construct the correct path
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size_t doubleslash = path.find("//");
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//The path is incorrectly formed without // after the first protocol
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if(doubleslash == wxString::npos)
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return NULL;
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wxString fspath = "file:" +
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EscapeFileNameCharsInURL(mainpath.substr(doubleslash + 2).utf8_str())
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+ "#" + protocol +":" + archivepath;
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return m_fileSystem->OpenFile(fspath);
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}
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}
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#endif // wxUSE_WEBVIEW
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