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//
// System.Web.UI.PageParser
//
// Authors:
// Gonzalo Paniagua Javier (gonzalo@ximian.com)
//
// (C) 2002,2003 Ximian, Inc (http://www.ximian.com)
//
using System;
using System.Collections;
using System.Collections.Specialized;
using System.Globalization;
using System.Text;
using System.Web;
using System.Web.Compilation;
using System.Web.Configuration;
using System.Web.Util;
namespace System.Web.UI
{
public sealed class PageParser : TemplateControlParser
{
bool enableSessionState = true;
bool haveTrace;
bool trace;
bool notBuffer;
TraceMode tracemode;
bool readonlySessionState;
string responseEncoding;
string contentType;
int codepage = -1;
int lcid = -1;
string culture;
string uiculture;
string errorPage;
bool validateRequest;
string clientTarget;
Type baseType = typeof (Page);
public PageParser ()
{
}
internal PageParser (string virtualPath, string inputFile, HttpContext context)
{
Context = context;
BaseVirtualDir = UrlUtils.GetDirectory (virtualPath);
InputFile = inputFile;
SetBaseType (PagesConfig.PageBaseType);
AddApplicationAssembly ();
}
public static IHttpHandler GetCompiledPageInstance (string virtualPath,
string inputFile,
HttpContext context)
{
PageParser pp = new PageParser (virtualPath, inputFile, context);
IHttpHandler h = (IHttpHandler) pp.GetCompiledInstance ();
return h;
}
internal override void ProcessMainAttributes (Hashtable atts)
{
string enabless = GetString (atts, "EnableSessionState", PagesConfig.EnableSessionState);
if (enabless != null) {
readonlySessionState = (String.Compare (enabless, "readonly", true) == 0);
if (readonlySessionState == true || String.Compare (enabless, "true", true) == 0) {
enableSessionState = true;
} else if (String.Compare (enabless, "false", true) == 0) {
enableSessionState = false;
} else {
ThrowParseException ("Invalid value for EnableSessionState: " + enabless);
}
}
string cp = GetString (atts, "CodePage", null);
if (cp != null) {
if (responseEncoding != null)
ThrowParseException ("CodePage and ResponseEncoding are " +
"mutually exclusive.");
int codepage = 0;
try {
codepage = (int) UInt32.Parse (cp);
} catch {
ThrowParseException ("Invalid value for CodePage: " + cp);
}
try {
Encoding.GetEncoding (codepage);
} catch {
ThrowParseException ("Unsupported codepage: " + cp);
}
}
responseEncoding = GetString (atts, "ResponseEncoding", null);
if (responseEncoding != null) {
if (codepage != -1)
ThrowParseException ("CodePage and ResponseEncoding are " +
"mutually exclusive.");
try {
Encoding.GetEncoding (responseEncoding);
} catch {
ThrowParseException ("Unsupported encoding: " + responseEncoding);
}
}
contentType = GetString (atts, "ContentType", null);
string lcidStr = GetString (atts, "LCID", null);
if (lcidStr != null) {
try {
lcid = (int) UInt32.Parse (lcidStr);
} catch {
ThrowParseException ("Invalid value for LCID: " + lcid);
}
CultureInfo ci = null;
try {
ci = new CultureInfo (lcid);
} catch {
ThrowParseException ("Unsupported LCID: " + lcid);
}
if (ci.IsNeutralCulture) {
string suggestedCulture = SuggestCulture (ci.Name);
string fmt = "LCID attribute must be set to a non-neutral Culture.";
if (suggestedCulture != null) {
ThrowParseException (fmt + " Please try one of these: " +
suggestedCulture);
} else {
ThrowParseException (fmt);
}
}
}
culture = GetString (atts, "Culture", null);
if (culture != null) {
if (lcidStr != null)
ThrowParseException ("Culture and LCID are mutually exclusive.");
CultureInfo ci = null;
try {
ci = new CultureInfo (culture);
} catch {
ThrowParseException ("Unsupported Culture: " + culture);
}
if (ci.IsNeutralCulture) {
string suggestedCulture = SuggestCulture (culture);
string fmt = "Culture attribute must be set to a non-neutral Culture.";
if (suggestedCulture != null)
ThrowParseException (fmt +
" Please try one of these: " + suggestedCulture);
else
ThrowParseException (fmt);
}
}
uiculture = GetString (atts, "UICulture", null);
if (uiculture != null) {
CultureInfo ci = null;
try {
ci = new CultureInfo (uiculture);
} catch {
ThrowParseException ("Unsupported Culture: " + uiculture);
}
if (ci.IsNeutralCulture) {
string suggestedCulture = SuggestCulture (uiculture);
string fmt = "UICulture attribute must be set to a non-neutral Culture.";
if (suggestedCulture != null)
ThrowParseException (fmt +
" Please try one of these: " + suggestedCulture);
else
ThrowParseException (fmt);
}
}
TraceConfig traceConfig = (TraceConfig) Context.GetConfig ("system.web/trace");
if (traceConfig != null) {
trace = traceConfig.Enabled;
if (trace)
haveTrace = true;
}
string tracestr = GetString (atts, "Trace", null);
if (tracestr != null) {
haveTrace = true;
atts ["Trace"] = tracestr;
trace = GetBool (atts, "Trace", false);
}
string tracemodes = GetString (atts, "TraceMode", null);
if (tracemodes != null) {
bool valid = true;
try {
tracemode = (TraceMode) Enum.Parse (typeof (TraceMode), tracemodes, false);
} catch {
valid = false;
}
if (!valid || tracemode == TraceMode.Default)
ThrowParseException ("The 'tracemode' attribute is case sensitive and must be " +
"one of the following values: SortByTime, SortByCategory.");
}
if (traceConfig != null) {
if (traceConfig.LocalOnly && !Context.Request.IsLocal) {
haveTrace = false;
trace = false;
}
}
errorPage = GetString (atts, "ErrorPage", null);
validateRequest = GetBool (atts, "ValidateRequest", PagesConfig.ValidateRequest);
clientTarget = GetString (atts, "ClientTarget", null);
if (clientTarget != null) {
NameValueCollection coll;
coll = (NameValueCollection) Context.GetConfig ("system.web/clientTarget");
if (coll == null || coll [clientTarget] == null) {
ThrowParseException (String.Format (
"ClientTarget '{0}' is an invalid alias. See the " +
"documentation for <clientTarget> config. section.",
clientTarget));
}
clientTarget = (string) coll [clientTarget];
}
notBuffer = !GetBool (atts, "Buffer", true);
// Ignored by now
GetString (atts, "EnableViewStateMac", null);
GetString (atts, "SmartNavigation", null);
base.ProcessMainAttributes (atts);
}
static string SuggestCulture (string culture)
{
string retval = null;
foreach (CultureInfo ci in CultureInfo.GetCultures (CultureTypes.SpecificCultures)) {
if (ci.Name.StartsWith (culture))
retval += ci.Name + " ";
}
return retval;
}
protected override Type CompileIntoType ()
{
AspGenerator generator = new AspGenerator (this);
return generator.GetCompiledType ();
}
internal bool EnableSessionState {
get { return enableSessionState; }
}
internal bool ReadOnlySessionState {
get { return readonlySessionState; }
}
internal bool HaveTrace {
get { return haveTrace; }
}
internal bool Trace {
get { return trace; }
}
internal TraceMode TraceMode {
get { return tracemode; }
}
internal override Type DefaultBaseType {
get { return baseType; }
}
internal override string DefaultBaseTypeName {
get { return "System.Web.UI.Page"; }
}
internal override string DefaultDirectiveName {
get { return "page"; }
}
internal string ResponseEncoding {
get { return responseEncoding; }
}
internal string ContentType {
get { return contentType; }
}
internal int CodePage {
get { return codepage; }
}
internal string Culture {
get { return culture; }
}
internal string UICulture {
get { return uiculture; }
}
internal int LCID {
get { return lcid; }
}
internal string ErrorPage {
get { return errorPage; }
}
internal bool ValidateRequest {
get { return validateRequest; }
}
internal string ClientTarget {
get { return clientTarget; }
}
internal bool NotBuffer {
get { return notBuffer; }
}
}
}
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