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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: webviewfilehandler.cpp | |
3 | // Purpose: Custom webview handler to allow archive browsing | |
4 | // Author: Steven Lamerton | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 2011 Steven Lamerton | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | // For compilers that support precompilation, includes "wx.h". | |
11 | #include "wx/wxprec.h" | |
12 | ||
13 | #if wxUSE_WEB | |
14 | ||
15 | #if defined(__BORLANDC__) | |
16 | #pragma hdrstop | |
17 | #endif | |
18 | ||
19 | #include "wx/webviewarchivehandler.h" | |
20 | #include "wx/filesys.h" | |
21 | ||
22 | //Taken from wx/filesys.cpp | |
23 | static wxString EscapeFileNameCharsInURL(const char *in) | |
24 | { | |
25 | wxString s; | |
26 | ||
27 | for ( const unsigned char *p = (const unsigned char*)in; *p; ++p ) | |
28 | { | |
29 | const unsigned char c = *p; | |
30 | ||
31 | if ( c == '/' || c == '-' || c == '.' || c == '_' || c == '~' || | |
32 | (c >= '0' && c <= '9') || | |
33 | (c >= 'a' && c <= 'z') || | |
34 | (c >= 'A' && c <= 'Z') ) | |
35 | { | |
36 | s << c; | |
37 | } | |
38 | else | |
39 | { | |
40 | s << wxString::Format("%%%02x", c); | |
41 | } | |
42 | } | |
43 | ||
44 | return s; | |
45 | } | |
46 | ||
47 | wxWebViewArchiveHandler::wxWebViewArchiveHandler(const wxString& scheme) : | |
48 | wxWebViewHandler(scheme) | |
49 | { | |
50 | m_fileSystem = new wxFileSystem(); | |
51 | } | |
52 | ||
53 | wxFSFile* wxWebViewArchiveHandler::GetFile(const wxString &uri) | |
54 | { | |
55 | //If there is a fragment at the end of the path then we need to strip it | |
56 | //off as not all backends do this for us | |
57 | wxString path = uri; | |
58 | size_t hashloc = uri.find('#'); | |
59 | if(hashloc != wxString::npos) | |
60 | { | |
61 | path = uri.substr(0, hashloc); | |
62 | } | |
63 | ||
64 | //We iterate through the string to see if there is a protocol description | |
65 | size_t start = wxString::npos; | |
66 | for(size_t i = 0; i < path.length(); i++) | |
67 | { | |
68 | if(path[i] == ';' && path.substr(i, 10) == ";protocol=") | |
69 | { | |
70 | start = i; | |
71 | break; | |
72 | } | |
73 | } | |
74 | ||
75 | //We do not have a protocol string so we just pass the path withouth the | |
76 | if(start == wxString::npos) | |
77 | { | |
78 | size_t doubleslash = path.find("//"); | |
79 | //The path is incorrectly formed without // after the scheme | |
80 | if(doubleslash == wxString::npos) | |
81 | return NULL; | |
82 | ||
83 | wxString fspath = "file:" + | |
84 | EscapeFileNameCharsInURL(path.substr(doubleslash + 2)); | |
85 | return m_fileSystem->OpenFile(fspath); | |
86 | } | |
87 | //Otherwise we need to extract the protocol | |
88 | else | |
89 | { | |
90 | size_t end = path.find('/', start); | |
91 | //For the path to be valid there must to a path after the protocol | |
92 | if(end == wxString::npos) | |
93 | { | |
94 | return NULL; | |
95 | } | |
96 | wxString mainpath = path.substr(0, start); | |
97 | wxString archivepath = path.substr(end); | |
98 | wxString protstring = path.substr(start, end - start); | |
99 | wxString protocol = protstring.substr(10); | |
100 | //We can now construct the correct path | |
101 | size_t doubleslash = path.find("//"); | |
102 | //The path is incorrectly formed without // after the first protocol | |
103 | if(doubleslash == wxString::npos) | |
104 | return NULL; | |
105 | ||
106 | wxString fspath = "file:" + | |
107 | EscapeFileNameCharsInURL(mainpath.substr(doubleslash + 2)) | |
108 | + "#" + protocol +":" + archivepath; | |
109 | return m_fileSystem->OpenFile(fspath); | |
110 | } | |
111 | } | |
112 | ||
113 | #endif // wxUSE_WEB |