static void FormatSource(StringBuilder builder, StringBuilder longVersion, HtmlizedException e)
{
if (e is CompilationException)
{
WriteCompilationSource(builder, longVersion, e);
}
else
{
WritePageSource(builder, e);
}
}
static void FormatSource(StringBuilder builder, StringBuilder longVersion, HtmlizedException e)
{
#if !TARGET_J2EE
if (e is CompilationException)
{
WriteCompilationSource(builder, longVersion, e);
}
else
#endif
WritePageSource(builder, e);
}
static void WriteSource(StringBuilder builder, StringBuilder longVersion, HtmlizedException e)
{
builder.Append("<code><pre>");
if (e is CompilationException)
{
WriteCompilationSource(builder, longVersion, e);
}
else
{
WritePageSource(builder, e);
}
builder.Append("<code></pre>\r\n");
}
static void WritePageSource(StringBuilder builder, HtmlizedException e)
{
string s;
int line = 0;
int beginerror = e.ErrorLines [0];
int enderror = e.ErrorLines [1];
int begin = beginerror - 2;
int end = enderror + 2;
if (begin <= 0)
{
begin = 1;
}
TextReader reader = new StringReader(e.FileText);
while ((s = reader.ReadLine()) != null)
{
line++;
if (line < begin)
{
continue;
}
if (line > end)
{
break;
}
if (beginerror == line)
{
builder.Append("<span style=\"color: red\">");
}
builder.AppendFormat("Line {0}: {1}\r\n", line, HtmlEncode(s));
if (enderror <= line)
{
builder.Append("</span>");
enderror = end + 1; // one shot
}
}
}
public string GetHtmlErrorMessage()
{
try
{
HttpContext ctx = HttpContext.Current;
if (ctx != null && ctx.IsCustomErrorEnabled)
{
if (http_code != 404 && http_code != 403)
{
return(GetCustomErrorDefaultMessage());
}
else
{
return(GetDefaultErrorMessage(false, null));
}
}
Exception ex = GetBaseException();
if (ex == null)
{
ex = this;
}
HtmlizedException htmlException = ex as HtmlizedException;
if (htmlException == null)
{
return(GetDefaultErrorMessage(true, ex));
}
return(GetHtmlizedErrorMessage(htmlException));
}
catch (Exception ex)
{
Console.WriteLine(ex);
// we need the try/catch block in case the
// problem was with MapPath, which will cause
// IsCustomErrorEnabled to throw an exception
return(GetCustomErrorDefaultMessage());
}
}
static void WriteCompilationSource (StringBuilder builder, HtmlizedException e)
{
int [] a = e.ErrorLines;
string s;
int line = 0;
int index = 0;
int errline = 0;
if (a != null && a.Length > 0)
errline = a [0];
TextReader reader = new StringReader (e.FileText);
while ((s = reader.ReadLine ()) != null) {
line++;
if (errline == line)
builder.Append ("<span style=\"color: red\">");
builder.AppendFormat ("Line {0}: {1}\r\n", line, HtmlEncode (s));
if (line == errline) {
builder.Append ("</span>");
errline = (++index < a.Length) ? a [index] : 0;
}
}
}
static void WriteCompilationSource(StringBuilder builder, StringBuilder longVersion, HtmlizedException e)
{
int [] a = e.ErrorLines;
string s;
int line = 0;
int index = 0;
int errline = 0;
if (a != null && a.Length > 0)
{
errline = a [0];
}
int begin = errline - 2;
int end = errline + 2;
if (begin < 0)
{
begin = 0;
}
string tmp;
using (TextReader reader = new StringReader(e.FileText)) {
while ((s = reader.ReadLine()) != null)
{
line++;
if (line < begin || line > end)
{
if (longVersion != null)
{
longVersion.AppendFormat("Line {0}: {1}\r\n", line, HtmlEncode(s));
}
continue;
}
if (errline == line)
{
if (longVersion != null)
{
longVersion.Append("<span style=\"color: red\">");
}
builder.Append("<span style=\"color: red\">");
}
tmp = String.Format("Line {0}: {1}\r\n", line, HtmlEncode(s));
builder.Append(tmp);
if (longVersion != null)
{
longVersion.Append(tmp);
}
if (line == errline)
{
builder.Append("</span>");
if (longVersion != null)
{
longVersion.Append("</span>");
}
errline = (++index < a.Length) ? a [index] : 0;
}
}
}
}
static void FormatSource (StringBuilder builder, StringBuilder longVersion, HtmlizedException e)
{
#if !TARGET_J2EE
if (e is CompilationException)
WriteCompilationSource (builder, longVersion, e);
else
#endif
WritePageSource (builder, e);
}
static void WriteSource(StringBuilder builder, StringBuilder longVersion, HtmlizedException e)
{
builder.Append("<code><pre>");
WritePageSource(builder, e);
builder.Append("</code></pre>\r\n");
}
string GetHtmlizedErrorMessage(HtmlizedException exc)
{
StringBuilder builder = new StringBuilder();
#if TARGET_J2EE
bool isParseException = false;
bool isCompileException = false;
#else
bool isParseException = exc is ParseException;
bool isCompileException = (!isParseException && exc is CompilationException);
#endif
WriteFileTop(builder, exc.Title);
builder.AppendFormat("<h2><em>{0}</em></h2>\r\n", exc.Title);
builder.AppendFormat("<p><strong>Description: </strong>{0}\r\n</p>\r\n", HtmlEncode(exc.Description));
string errorMessage = HtmlEncode(exc.ErrorMessage);
builder.Append("<p><strong>");
if (isParseException)
{
builder.Append("Parser ");
}
else if (isCompileException)
{
builder.Append("Compiler ");
}
builder.Append("Error Message: </strong>");
#if NET_2_0
builder.AppendFormat("<code>{0}</code></p>", errorMessage);
#else
builder.AppendFormat("<blockquote><pre>{0}</pre></blockquote></p>", errorMessage);
#endif
StringBuilder longCodeVersion = null;
if (exc.FileText != null)
{
if (isParseException || isCompileException)
{
builder.Append("<p><strong>Source Error: </strong></p>\r\n");
builder.Append("<table summary=\"Source error\" class=\"sampleCode\">\r\n<tr><td>");
if (isCompileException)
{
longCodeVersion = new StringBuilder();
}
WriteSource(builder, longCodeVersion, exc);
builder.Append("</pre></code></td></tr>\r\n</table>\r\n");
}
else
{
builder.Append("<table summary=\"Source file\" class=\"sampleCode\">\r\n<tr><td>");
WriteSource(builder, null, exc);
builder.Append("</pre></code></td></tr>\r\n</table>\r\n");
}
builder.Append("<br/><p><strong>Source File: </strong>");
if (exc.SourceFile != exc.FileName)
{
builder.Append(FormatSourceFile(exc.SourceFile));
}
else
{
builder.Append(FormatSourceFile(exc.FileName));
}
if (isParseException || isCompileException)
{
int[] errorLines = exc.ErrorLines;
int numErrors = errorLines != null ? errorLines.Length : 0;
if (numErrors > 0)
{
builder.AppendFormat(" <strong>Line{0}: </strong>", numErrors > 1 ? "s" : String.Empty);
for (int i = 0; i < numErrors; i++)
{
if (i > 0)
{
builder.Append(", ");
}
builder.Append(exc.ErrorLines [i]);
}
}
}
builder.Append("</p>");
}
else if (exc.FileName != null)
{
builder.AppendFormat("{0}</p>", HtmlEncode(exc.FileName));
}
bool needToggleJS = false;
#if !TARGET_J2EE
if (isCompileException)
{
CompilationException cex = exc as CompilationException;
StringCollection output = cex.CompilerOutput;
if (output != null && output.Count > 0)
{
needToggleJS = true;
StringBuilder sb = new StringBuilder();
foreach (string s in output)
{
sb.Append(s + "\r\n");
}
WriteExpandableBlock(builder, "compilerOutput", "Show Detailed Compiler Output", sb.ToString());
}
}
#endif
if (longCodeVersion != null && longCodeVersion.Length > 0)
{
WriteExpandableBlock(builder, "fullCode", "Show Complete Compilation Source", longCodeVersion.ToString());
needToggleJS = true;
}
if (needToggleJS)
{
builder.Append("<script type=\"text/javascript\">\r\n" +
"function ToggleVisible (id)\r\n" +
"{\r\n" +
"\tvar e = document.getElementById (id);\r\n" +
"\tif (e.style.display == 'none')\r\n" +
"\t{\r\n" +
"\t\te.style.display = '';\r\n" +
"\t} else {\r\n" +
"\t\te.style.display = 'none';\r\n" +
"\t}\r\n" +
"}\r\n" +
"</script>\r\n");
}
WriteFileBottom(builder, true);
return(builder.ToString());
}
string GetHtmlizedErrorMessage (HtmlizedException exc)
{
StringBuilder builder = new StringBuilder ();
#if TARGET_J2EE
bool isParseException = false;
bool isCompileException = false;
#else
bool isParseException = exc is ParseException;
bool isCompileException = (!isParseException && exc is CompilationException);
#endif
WriteFileTop (builder, exc.Title);
builder.AppendFormat ("<h2><em>{0}</em></h2>\r\n", exc.Title);
builder.AppendFormat ("<p><strong>Description: </strong>{0}\r\n</p>\r\n", HtmlEncode (exc.Description));
string errorMessage = HtmlEncode (exc.ErrorMessage);
builder.Append ("<p><strong>");
if (isParseException)
builder.Append ("Parser ");
else if (isCompileException)
builder.Append ("Compiler ");
builder.Append ("Error Message: </strong>");
builder.AppendFormat ("<code>{0}</code></p>", errorMessage);
StringBuilder longCodeVersion = null;
if (exc.FileText != null) {
if (isParseException || isCompileException) {
builder.Append ("<p><strong>Source Error: </strong></p>\r\n");
builder.Append ("<table summary=\"Source error\" class=\"sampleCode\">\r\n<tr><td>");
if (isCompileException)
longCodeVersion = new StringBuilder ();
WriteSource (builder, longCodeVersion, exc);
builder.Append ("</pre></code></td></tr>\r\n</table>\r\n");
} else {
builder.Append ("<table summary=\"Source file\" class=\"sampleCode\">\r\n<tr><td>");
WriteSource (builder, null, exc);
builder.Append ("</pre></code></td></tr>\r\n</table>\r\n");
}
builder.Append ("<br/><p><strong>Source File: </strong>");
if (exc.SourceFile != exc.FileName)
builder.Append (FormatSourceFile (exc.SourceFile));
else
builder.Append (FormatSourceFile (exc.FileName));
if (isParseException || isCompileException) {
int[] errorLines = exc.ErrorLines;
int numErrors = errorLines != null ? errorLines.Length : 0;
if (numErrors > 0) {
builder.AppendFormat (" <strong>Line{0}: </strong>", numErrors > 1 ? "s" : String.Empty);
for (int i = 0; i < numErrors; i++) {
if (i > 0)
builder.Append (", ");
builder.Append (exc.ErrorLines [i]);
}
}
}
builder.Append ("</p>");
} else if (exc.FileName != null)
builder.AppendFormat ("{0}</p>", HtmlEncode (exc.FileName));
bool needToggleJS = false;
#if !TARGET_J2EE
if (isCompileException) {
CompilationException cex = exc as CompilationException;
StringCollection output = cex.CompilerOutput;
if (output != null && output.Count > 0) {
needToggleJS = true;
StringBuilder sb = new StringBuilder ();
foreach (string s in output)
sb.Append (s + "\r\n");
WriteExpandableBlock (builder, "compilerOutput", "Show Detailed Compiler Output", sb.ToString ());
}
}
#endif
if (longCodeVersion != null && longCodeVersion.Length > 0) {
WriteExpandableBlock (builder, "fullCode", "Show Complete Compilation Source", longCodeVersion.ToString ());
needToggleJS = true;
}
if (needToggleJS)
builder.Append ("<script type=\"text/javascript\">\r\n" +
"function ToggleVisible (id)\r\n" +
"{\r\n" +
"\tvar e = document.getElementById (id);\r\n" +
"\tif (e.style.display == 'none')\r\n" +
"\t{\r\n" +
"\t\te.style.display = '';\r\n" +
"\t} else {\r\n" +
"\t\te.style.display = 'none';\r\n" +
"\t}\r\n" +
"}\r\n" +
"</script>\r\n");
WriteFileBottom (builder, true);
return builder.ToString ();
}
void FillHtmlizedErrorValues(ExceptionPageTemplateValues values, HtmlizedException exc, ref ExceptionPageTemplateType pageType)
{
bool isParseException = exc is ParseException;
bool isCompileException = (!isParseException && exc is CompilationException);
values.Add(ExceptionPageTemplate.Template_PageTitleName, HtmlEncode(exc.Title));
values.Add(ExceptionPageTemplate.Template_DescriptionName, HtmlEncode(exc.Description));
values.Add(ExceptionPageTemplate.Template_StackTraceName, HtmlEncode(exc.StackTrace));
values.Add(ExceptionPageTemplate.Template_ExceptionTypeName, exc.GetType().ToString());
values.Add(ExceptionPageTemplate.Template_ExceptionMessageName, HtmlEncode(exc.Message));
values.Add(ExceptionPageTemplate.Template_DetailsName, HtmlEncode(exc.ErrorMessage));
string origin;
if (isParseException)
{
origin = "Parser";
}
else if (isCompileException)
{
origin = "Compiler";
}
else
{
origin = "Other";
}
values.Add(ExceptionPageTemplate.Template_HtmlizedExceptionOriginName, origin);
if (exc.FileText != null)
{
pageType |= ExceptionPageTemplateType.SourceError;
StringBuilder shortSource = new StringBuilder();
StringBuilder longSource;
if (isCompileException)
{
longSource = new StringBuilder();
}
else
{
longSource = null;
}
FormatSource(shortSource, longSource, exc);
values.Add(ExceptionPageTemplate.Template_HtmlizedExceptionShortSourceName, shortSource.ToString());
values.Add(ExceptionPageTemplate.Template_HtmlizedExceptionLongSourceName, longSource != null ? longSource.ToString() : null);
if (exc.SourceFile != exc.FileName)
{
values.Add(ExceptionPageTemplate.Template_HtmlizedExceptionSourceFileName, FormatSourceFile(exc.SourceFile));
}
else
{
values.Add(ExceptionPageTemplate.Template_HtmlizedExceptionSourceFileName, FormatSourceFile(exc.FileName));
}
if (isParseException || isCompileException)
{
int[] errorLines = exc.ErrorLines;
int numErrors = errorLines != null ? errorLines.Length : 0;
var lines = new StringBuilder();
for (int i = 0; i < numErrors; i++)
{
if (i > 0)
{
lines.Append(", ");
}
lines.Append(errorLines [i]);
}
values.Add(ExceptionPageTemplate.Template_HtmlizedExceptionErrorLinesName, lines.ToString());
}
}
else
{
values.Add(ExceptionPageTemplate.Template_HtmlizedExceptionSourceFileName, FormatSourceFile(exc.FileName));
}
if (isCompileException)
{
CompilationException cex = exc as CompilationException;
StringCollection output = cex.CompilerOutput;
if (output != null && output.Count > 0)
{
pageType |= ExceptionPageTemplateType.CompilerOutput;
var sb = new StringBuilder();
bool first = true;
foreach (string s in output)
{
sb.Append(HtmlEncode(s));
if (first)
{
sb.Append("<br/>");
first = false;
}
sb.Append("<br/>");
}
values.Add(ExceptionPageTemplate.Template_HtmlizedExceptionCompilerOutputName, sb.ToString());
}
}
}
public string GetHtmlErrorMessage()
{
var values = new ExceptionPageTemplateValues();
ExceptionPageTemplate template = PageTemplate;
try {
values.Add(ExceptionPageTemplate.Template_RuntimeVersionInformationName, RuntimeHelpers.MonoVersion);
values.Add(ExceptionPageTemplate.Template_AspNetVersionInformationName, Environment.Version.ToString());
HttpContext ctx = HttpContext.Current;
ExceptionPageTemplateType pageType = ExceptionPageTemplateType.Standard;
if (ctx != null && ctx.IsCustomErrorEnabled)
{
if (http_code != 404 && http_code != 403)
{
FillDefaultCustomErrorValues(values);
pageType = ExceptionPageTemplateType.CustomErrorDefault;
}
else
{
FillDefaultErrorValues(false, false, null, values);
}
}
else
{
Exception ex = GetBaseException();
if (ex == null)
{
ex = this;
}
values.Add(ExceptionPageTemplate.Template_FullStackTraceName, FormatFullStackTrace());
HtmlizedException htmlException = ex as HtmlizedException;
if (htmlException == null)
{
FillDefaultErrorValues(true, true, ex, values);
}
else
{
pageType = ExceptionPageTemplateType.Htmlized;
FillHtmlizedErrorValues(values, htmlException, ref pageType);
}
}
return(template.Render(values, pageType));
} catch (Exception ex) {
Console.Error.WriteLine("An exception has occurred while generating HttpException page:");
Console.Error.WriteLine(ex);
Console.Error.WriteLine();
Console.Error.WriteLine("The actual exception which was being reported was:");
Console.Error.WriteLine(this);
// we need the try/catch block in case the
// problem was with MapPath, which will cause
// IsCustomErrorEnabled to throw an exception
try {
FillDefaultCustomErrorValues(values);
return(template.Render(values, ExceptionPageTemplateType.CustomErrorDefault));
} catch {
return(DoubleFaultExceptionMessage);
}
}
}
static void WritePageSource (StringBuilder builder, HtmlizedException e)
{
string s;
int line = 0;
int beginerror = e.ErrorLines [0];
int enderror = e.ErrorLines [1];
int begin = beginerror - 3;
int end = enderror + 3;
if (begin <= 0)
begin = 1;
TextReader reader = new StringReader (e.FileText);
while ((s = reader.ReadLine ()) != null) {
line++;
if (line < begin)
continue;
if (line > end)
break;
if (beginerror == line)
builder.Append ("<span style=\"color: red\">");
builder.AppendFormat ("{0}\r\n", HtmlEncode (s));
if (enderror <= line) {
builder.Append ("</span>");
enderror = end + 1; // one shot
}
}
}
static void WriteSource (StringBuilder builder, HtmlizedException e)
{
builder.Append ("<code><pre>");
if (e is CompilationException)
WriteCompilationSource (builder, e);
else
WritePageSource (builder, e);
builder.Append ("</pre></code>\r\n");
}
static void WriteSource (StringBuilder builder, HtmlizedException e)
{
builder.Append ("<code><pre>");
WritePageSource (builder, e);
builder.Append ("</pre></code>\r\n");
}
static void WriteCompilationSource (StringBuilder builder, StringBuilder longVersion, HtmlizedException e)
{
int [] a = e.ErrorLines;
string s;
int line = 0;
int index = 0;
int errline = 0;
if (a != null && a.Length > 0)
errline = a [0];
int begin = errline - 2;
int end = errline + 2;
if (begin < 0)
begin = 0;
string tmp;
using (TextReader reader = new StringReader (e.FileText)) {
while ((s = reader.ReadLine ()) != null) {
line++;
if (line < begin || line > end) {
if (longVersion != null)
longVersion.AppendFormat ("{0}: {1}\r\n", line, HtmlEncode (s));
continue;
}
if (errline == line) {
if (longVersion != null)
longVersion.Append ("<span class=\"sourceErrorLine\">");
builder.Append ("<span class=\"sourceErrorLine\">");
}
tmp = String.Format ("{0}: {1}\r\n", line, HtmlEncode (s));
builder.Append (tmp);
if (longVersion != null)
longVersion.Append (tmp);
if (line == errline) {
builder.Append ("</span>");
if (longVersion != null)
longVersion.Append ("</span>");
errline = (++index < a.Length) ? a [index] : 0;
}
}
}
}
static void FormatSource (StringBuilder builder, StringBuilder longVersion, HtmlizedException e)
{
if (e is CompilationException)
WriteCompilationSource (builder, longVersion, e);
else
WritePageSource (builder, e);
}
void FillHtmlizedErrorValues (ExceptionPageTemplateValues values, HtmlizedException exc, ref ExceptionPageTemplateType pageType)
{
bool isParseException = exc is ParseException;
bool isCompileException = (!isParseException && exc is CompilationException);
values.Add (ExceptionPageTemplate.Template_PageTitleName, HtmlEncode (exc.Title));
values.Add (ExceptionPageTemplate.Template_DescriptionName, HtmlEncode (exc.Description));
values.Add (ExceptionPageTemplate.Template_StackTraceName, HtmlEncode (exc.StackTrace));
values.Add (ExceptionPageTemplate.Template_ExceptionTypeName, exc.GetType ().ToString ());
values.Add (ExceptionPageTemplate.Template_ExceptionMessageName, HtmlEncode (exc.Message));
values.Add (ExceptionPageTemplate.Template_DetailsName, HtmlEncode (exc.ErrorMessage));
string origin;
if (isParseException)
origin = "Parser";
else if (isCompileException)
origin = "Compiler";
else
origin = "Other";
values.Add (ExceptionPageTemplate.Template_HtmlizedExceptionOriginName, origin);
if (exc.FileText != null) {
pageType |= ExceptionPageTemplateType.SourceError;
StringBuilder shortSource = new StringBuilder ();
StringBuilder longSource;
if (isCompileException)
longSource = new StringBuilder ();
else
longSource = null;
FormatSource (shortSource, longSource, exc);
values.Add (ExceptionPageTemplate.Template_HtmlizedExceptionShortSourceName, shortSource.ToString ());
values.Add (ExceptionPageTemplate.Template_HtmlizedExceptionLongSourceName, longSource != null ? longSource.ToString () : null);
if (exc.SourceFile != exc.FileName)
values.Add (ExceptionPageTemplate.Template_HtmlizedExceptionSourceFileName, FormatSourceFile (exc.SourceFile));
else
values.Add (ExceptionPageTemplate.Template_HtmlizedExceptionSourceFileName, FormatSourceFile (exc.FileName));
if (isParseException || isCompileException) {
int[] errorLines = exc.ErrorLines;
int numErrors = errorLines != null ? errorLines.Length : 0;
var lines = new StringBuilder ();
for (int i = 0; i < numErrors; i++) {
if (i > 0)
lines.Append (", ");
lines.Append (errorLines [i]);
}
values.Add (ExceptionPageTemplate.Template_HtmlizedExceptionErrorLinesName, lines.ToString ());
}
} else
values.Add (ExceptionPageTemplate.Template_HtmlizedExceptionSourceFileName, FormatSourceFile (exc.FileName));
if (isCompileException) {
CompilationException cex = exc as CompilationException;
StringCollection output = cex.CompilerOutput;
if (output != null && output.Count > 0) {
pageType |= ExceptionPageTemplateType.CompilerOutput;
var sb = new StringBuilder ();
bool first = true;
foreach (string s in output) {
sb.Append (HtmlEncode (s));
if (first) {
sb.Append ("<br/>");
first = false;
}
sb.Append ("<br/>");
}
values.Add (ExceptionPageTemplate.Template_HtmlizedExceptionCompilerOutputName, sb.ToString ());
}
}
}