/// <summary>
/// Parses the given string. The given string can either be " quoted, ' quoted, $_GET, $_POST, $_COOKIE, $_REQUEST
/// </summary>
/// <param name="toParse"></param>
/// <param name="webConnection"></param>
/// <returns></returns>
private string Parse(string toParse, IWebConnection webConnection)
{
if (toParse.StartsWith("\""))
{
if (!toParse.EndsWith("\""))
throw new CanNotParse();
return HandleEscapes(toParse, '"');
}
else if (toParse.StartsWith("'"))
{
if (!toParse.EndsWith("'"))
throw new CanNotParse();
return HandleEscapes(toParse, '\'');
}
else if (toParse.StartsWith("$_GET["))
{
string argumentName = GetArgument(toParse, "$_GET");
return webConnection.GetArgumentOrException(argumentName);
}
else if (toParse.StartsWith("$_GETENCODE["))
{
string argumentName = GetArgument(toParse, "$_GETENCODE");
return HTTPStringFunctions.EncodeRequestParametersForBrowser(webConnection.GetArgumentOrException(argumentName));
}
else if (toParse.StartsWith("$_POST["))
{
string argumentName = GetArgument(toParse, "$_POST");
return webConnection.PostArgumentOrException(argumentName);
}
else if (toParse.StartsWith("$_POSTENCODE["))
{
string argumentName = GetArgument(toParse, "$_POSTENCODE");
return HTTPStringFunctions.EncodeRequestParametersForBrowser(webConnection.PostArgumentOrException(argumentName));
}
else if (toParse.StartsWith("$_COOKIE["))
{
string argumentName = GetArgument(toParse, "$_COOKIE");
return webConnection.CookieOrException(argumentName);
}
else if (toParse.StartsWith("$_COOKIEENCODE["))
{
string argumentName = GetArgument(toParse, "$_COOKIEENCODE");
return HTTPStringFunctions.EncodeRequestParametersForBrowser(webConnection.CookieOrException(argumentName));
}
else if (toParse.StartsWith("$_REQUEST["))
{
string argumentName = GetArgument(toParse, "$_REQUEST");
return webConnection.EitherArgumentOrException(argumentName);
}
else if (toParse.StartsWith("$_REQUESTENCODE["))
{
string argumentName = GetArgument(toParse, "$_REQUESTENCODE");
return HTTPStringFunctions.EncodeRequestParametersForBrowser(webConnection.EitherArgumentOrException(argumentName));
}
throw new CanNotParse();
}
/// <summary>
/// Parses all of the web components
/// </summary>
/// <param name="toResolve"></param>
/// <param name="webConnection"></param>
/// <returns></returns>
private string ParseWebComponents(string toResolve, IWebConnection webConnection)
{
string[] splitAtOpenTag = toResolve.Split(new string[] { "<?" }, StringSplitOptions.None);
// If nothing was found, just return toResolve unparsed
if (splitAtOpenTag.Length <= 1)
return toResolve;
for (int ctr = 1; ctr < splitAtOpenTag.Length; ctr++)
{
string tagContentsAndTrailer = splitAtOpenTag[ctr];
int? closeLoc = FindClose(tagContentsAndTrailer);
if (null == closeLoc)
// no ?>
splitAtOpenTag[ctr] = "<?" + tagContentsAndTrailer;
else
{
string webComponentTag = tagContentsAndTrailer.Substring(0, closeLoc.Value - 2).Trim();
string afterWebComponentTag = tagContentsAndTrailer.Substring(closeLoc.Value);
if (webComponentTag.StartsWith("WebComponent(", true, CultureInfo.InvariantCulture))
{
// <? WebComponent(...
try
{
string arguments = webComponentTag.Substring("WebComponent(".Length);
StringBuilder parsedArguments = new StringBuilder();
foreach (string subString in SplitAtPeriods(arguments))
{
string parsed = Parse(subString, webConnection);
parsedArguments.Append(parsed);
}
try
{
try
{
string webComponentResults = webConnection.DoWebComponent(parsedArguments.ToString());
splitAtOpenTag[ctr] = webComponentResults + afterWebComponentTag;
}
catch (Exception e)
{
log.Error("Exception when handling a web component", e);
throw;
}
}
catch (Exception e)
{
if (e is WebResultsOverrideException)
{
WebResultsOverrideException wroe = (WebResultsOverrideException)e;
log.Error("Exception when handling a web component", wroe);
splitAtOpenTag[ctr] = wroe.WebResults.ResultsAsString + afterWebComponentTag;
}
else
{
log.Error("Exception when handling a web component", e);
splitAtOpenTag[ctr] = " Unknown error, see logs " + afterWebComponentTag;
}
}
}
catch (CanNotParse cnp)
{
log.Error(cnp);
splitAtOpenTag[ctr] = "<? PARSE ERROR + " + webComponentTag + " PARSE ERROR ?>" + afterWebComponentTag;
}
}
else if (webComponentTag.StartsWith("$_"))
{
// $_GET... $_POST... $_COOKIE... $_REQUEST...
string[] varSourceAndName = webComponentTag.Substring(2).Split('[');
if (2 != varSourceAndName.Length)
splitAtOpenTag[ctr] = "<?" + tagContentsAndTrailer;
else
{
string varSource = varSourceAndName[0];
string[] variableAndJunk = varSourceAndName[1].Split('"');
if (3 != variableAndJunk.Length)
splitAtOpenTag[ctr] = "<?" + tagContentsAndTrailer;
else
{
string name = variableAndJunk[1];
string result = null;
try
{
switch (varSource)
{
case ("GET"):
result = webConnection.GetArgumentOrException(name);
break;
case ("GETENCODE"):
result = HTTPStringFunctions.EncodeRequestParametersForBrowser(webConnection.GetArgumentOrException(name));
break;
case ("POST"):
result = webConnection.PostArgumentOrException(name);
break;
case ("POSTENCODE"):
result = HTTPStringFunctions.EncodeRequestParametersForBrowser(webConnection.PostArgumentOrException(name));
break;
case ("COOKIE"):
result = webConnection.CookieOrException(name);
break;
case ("COOKIEENCODE"):
result = HTTPStringFunctions.EncodeRequestParametersForBrowser(webConnection.CookieOrException(name));
break;
case ("REQUEST"):
result = webConnection.EitherArgumentOrException(name);
break;
case ("REQUESTENCODE"):
result = HTTPStringFunctions.EncodeRequestParametersForBrowser(webConnection.EitherArgumentOrException(name));
break;
}
if (null != result)
splitAtOpenTag[ctr] = result + afterWebComponentTag;
else
splitAtOpenTag[ctr] = "<?" + tagContentsAndTrailer;
}
catch (Exception e)
{
log.Error("Error when handing a $_ ", e);
splitAtOpenTag[ctr] = "<?" + tagContentsAndTrailer;
}
}
}
}
else if (webComponentTag.StartsWith("Cache("))
{
// <? Cache(...
string[] splitAtCloseTag = splitAtOpenTag[ctr].Split(new string[] { "?>" }, 2, StringSplitOptions.None);
if (2 != splitAtCloseTag.Length)
splitAtOpenTag[ctr] = "<?" + tagContentsAndTrailer;
else
{
string requestedUrl = splitAtCloseTag[0].Split(new char[] { '(' }, 2)[1].Split(')')[0];
splitAtOpenTag[ctr] = webConnection.GetBrowserCacheUrl(requestedUrl) + splitAtCloseTag[1];
}
}
else
splitAtOpenTag[ctr] = "<?" + tagContentsAndTrailer;
}
}
StringBuilder toReturn = new StringBuilder();
foreach (string toAdd in splitAtOpenTag)
toReturn.Append(toAdd);
return toReturn.ToString();
}
public virtual WebDelegate GetMethod(IWebConnection webConnection)
{
string method = webConnection.GetArgumentOrException("Method");
return FileHandlerFactoryLocator.WebMethodCache[MethodNameAndFileContainer.New(method, FileContainer, this)];
}