public static void DefaultAutoload(NamingContext namingContext, DTypeDesc caller, string className)
{
// TODO: skip in pure mode
var context = ScriptContext.CurrentContext;
var fileExtensions = context.SplAutoloadExtensions.GetEnumerator();
bool stateChanged = true;
while (!stateChanged || ScriptContext.CurrentContext.ResolveType(className, namingContext, caller, null, ResolveTypeFlags.None) == null)
{
if (!fileExtensions.MoveNext())
{
PhpException.Throw(PhpError.Error, string.Format(CoreResources.class_could_not_be_loaded, className));
return;
}
// try to dynamically include the file specified by the class name, if it exists
string FullFileName = className + fileExtensions.Current;
if (PhpFile.Exists(FullFileName))
{
context.DynamicInclude(FullFileName, context.WorkingDirectory, null, null, null, InclusionTypes.IncludeOnce);
stateChanged = true;
}
else
{
stateChanged = false;
}
}
}
public static bool ChangeFileMode(string path, int mode)
{
StreamWrapper wrapper;
if (!PhpStream.ResolvePath(ref path, out wrapper, CheckAccessMode.FileOrDirectory, CheckAccessOptions.Empty))
{
return(false);
}
bool isDir = PhpFile.IsDirectory(path);
FileSystemInfo fInfo = isDir ? (FileSystemInfo) new DirectoryInfo(path) : new FileInfo(path);
if (!fInfo.Exists)
{
PhpException.Throw(PhpError.Warning, CoreResources.GetString("invalid_path", path));
return(false);
}
//Directories has no equivalent of a readonly flag,
//instead, their content permission should be adjusted accordingly
//[http://msdn.microsoft.com/en-us/library/system.security.accesscontrol.directorysecurity.aspx]
if (isDir)
{
//DirectoryInfo dInfo = (DirectoryInfo)fInfo;
//DirectorySecurity dSecurity = dInfo.GetAccessControl();
//foreach(FileSystemAccessRule rule in ResolveAccessRules(mode))
// dSecurity.AddAccessRule(rule);
//try
//{
// dInfo.SetAccessControl(dSecurity);
//}
//catch
{
return(false);
}
}
else
{
// according to <io.h> and <chmod.c> from C libraries in Visual Studio 2008
// and PHP 5.3 source codes, which are using standard _chmod() function in C
// on Windows it only changes the ReadOnly flag of the file
//
// see <chmod.c> for more details
/*
#define _S_IREAD 0x0100 // read permission, owner
#define _S_IWRITE 0x0080 // write permission, owner
#define _S_IEXEC 0x0040 // execute/search permission, owner
*/
((FileInfo)fInfo).IsReadOnly = ((mode & 0x0080) == 0);
}
return(true);
}
public static PhpArray GetMetaTags(string fileName, FileOpenOptions flags)
{
PhpArray result = new PhpArray();
ScriptContext context = ScriptContext.CurrentContext;
if (getMetaTagsRegex == null)
{
getMetaTagsRegex = new Regex(@"^meta\s+name\s*=\s*(?:(\w*)|'([^']*)'|\u0022([^\u0022]*)\u0022)\s+" +
@"content\s*=\s*(?:(\w*)|'([^']*)'|\u0022([^\u0022]*)\u0022)\s*/?$",
RegexOptions.IgnoreCase | RegexOptions.CultureInvariant);
}
try
{
PhpStream stream = PhpStream.Open(fileName, "rt", PhpFile.ProcessOptions(flags));
StringBuilder tag = new StringBuilder();
bool in_brackets = false;
int in_quotes = 0; // 1 = ', 2 = "
int in_comment = 0; // 1 = <, 2 = <!, 3 = <!-, 4 = <!--, 5 = <!-- -, 6 <!-- --
while (!stream.Eof)
{
int start_index = 0;
string line = stream.ReadLine(-1, null);
for (int i = 0; i < line.Length; i++)
{
switch (line[i])
{
case '<':
{
if (!in_brackets && in_quotes == 0 && in_comment == 0)
{
in_brackets = true;
in_comment = 1;
start_index = i + 1;
}
break;
}
case '>':
{
if (in_brackets && in_quotes == 0 && in_comment != 4 && in_comment != 5)
{
in_brackets = false;
in_comment = 0;
if (start_index < i)
{
tag.Append(line, start_index, i - start_index);
}
string str = tag.ToString();
tag.Length = 0;
// did we reach the end of <head>?
if (str.Equals("/head", StringComparison.InvariantCultureIgnoreCase))
{
return(result);
}
// try to match the tag with the <meta> regex
Match match = getMetaTagsRegex.Match(str);
if (match.Success)
{
string name = null, value = null;
for (int j = 1; j <= 3; j++)
{
if (match.Groups[j].Success)
{
name = match.Groups[j].Value;
break;
}
}
if (name != null)
{
for (int j = 4; j <= 6; j++)
{
if (match.Groups[j].Success)
{
value = match.Groups[j].Value;
break;
}
}
result[name] = (value == null ? String.Empty : Core.Convert.Quote(value, context));
}
}
}
break;
}
case '\'':
{
if (in_quotes == 0)
{
in_quotes = 1;
}
else if (in_quotes == 1)
{
in_quotes = 0;
}
break;
}
case '"':
{
if (in_quotes == 0)
{
in_quotes = 2;
}
else if (in_quotes == 2)
{
in_quotes = 0;
}
break;
}
case '!': if (in_comment == 1)
{
in_comment = 2;
}
break;
case '-': if (in_comment >= 2 && in_comment < 6)
{
in_comment++;
}
break;
default:
{
// reset comment state machine
if (in_comment < 4)
{
in_comment = 0;
}
if (in_comment > 4)
{
in_comment = 4;
}
break;
}
}
}
if (in_brackets && start_index < line.Length)
{
tag.Append(line, start_index, line.Length - start_index);
}
}
}
catch (IOException)
{
return(null);
}
return(result);
}
