/// <summary>
/// Render the line with the error plus some context lines
/// </summary>
private static string FormatSourceCode(DynamicExceptionInfo err)
{
var sourceFile = err.SourceFileName;
int line = err.SourceLine;
if (sourceFile == null || line <= 0)
{
return("");
}
Stream stream = null;
try {
stream = _runtime.Host.PlatformAdaptationLayer.OpenInputFileStream(sourceFile);
if (stream == null)
{
return("");
}
} catch (IOException) {
return("");
}
int maxLen = (line + 2).ToString().Length;
var text = new StringBuilder();
using (StreamReader reader = new StreamReader(stream)) {
for (int i = 1; i <= line + 2; ++i)
{
string lineText = reader.ReadLine();
if (null == lineText)
{
break;
}
if (i < line - 2)
{
continue;
}
string lineNum = i.ToString();
text.Append("Line ").Append(' ', maxLen - lineNum.Length).Append(lineNum).Append(": ");
lineText = EscapeHtml(lineText);
if (i == line)
{
text.AppendFormat(_errorLineTemplate, lineText, _errorLineId);
}
else
{
text.Append(lineText);
}
if (i != line + 2)
{
text.Append("<br />");
}
}
}
return(text.ToString());
}
/// <summary>
/// Gets the stack trace using whatever information we have available
/// </summary>
private static string FormatStackTrace(DynamicExceptionInfo err)
{
Exception ex = err.Exception;
if (ex is SyntaxErrorException)
{
return(""); // no meaningful stack trace for syntax errors
}
DynamicStackFrame[] dynamicFrames = err.DynamicStackFrames;
if (dynamicFrames != null && dynamicFrames.Length > 0)
{
// We have a stack trace, either dynamic or directly from the exception
StringBuilder html = new StringBuilder();
foreach (DynamicStackFrame frame in dynamicFrames)
{
if (html.Length != 0)
{
html.Append("<br />");
}
html.AppendFormat(
" at {0} in {1}, line {2}",
EscapeHtml(frame.GetMethodName()),
frame.GetFileName() != null ? EscapeHtml(frame.GetFileName()) : null,
frame.GetFileLineNumber()
);
}
if (Settings.ExceptionDetail)
{
html.Append("<br/>CLR Stack Trace:<br/>");
html.Append(EscapeHtml(ex.StackTrace != null ? ex.StackTrace : ex.ToString()));
}
return(html.ToString());
}
return(EscapeHtml(ex.StackTrace != null ? ex.StackTrace : ex.ToString()));
}
/// <summary>
/// Get the dynamic exception info from the CLR exception, and format
/// it with the _errorHtmlTemplate.
/// </summary>
internal static string FormatErrorAsHtml(Exception e)
{
// Get information about this exception object
DynamicExceptionInfo err = new DynamicExceptionInfo(e);
return(string.Format(
_errorHtmlTemplate,
EscapeHtml(err.Message),
err.SourceFileName != null ? EscapeHtml(err.SourceFileName) : "",
FormatSourceCode(err),
EscapeHtml(err.ErrorTypeName),
FormatStackTrace(err),
_errorReportId,
_errorMessageId,
_errorSourceId,
_errorSourceFileId,
_errorSourceCodeId,
_errorDetailsId,
_errorTypeId,
_errorStackTraceId
));
}
/// <summary>
/// Gets the stack trace using whatever information we have available
/// </summary>
private static string FormatStackTrace(DynamicExceptionInfo err) {
Exception ex = err.Exception;
if (ex is SyntaxErrorException) {
return ""; // no meaningful stack trace for syntax errors
}
DynamicStackFrame[] dynamicFrames = err.DynamicStackFrames;
if (dynamicFrames != null && dynamicFrames.Length > 0) {
// We have a stack trace, either dynamic or directly from the exception
StringBuilder html = new StringBuilder();
foreach (DynamicStackFrame frame in dynamicFrames) {
if (html.Length != 0) {
html.Append("<br />");
}
html.AppendFormat(
" at {0} in {1}, line {2}",
EscapeHtml(frame.GetMethodName()),
frame.GetFileName() != null ? EscapeHtml(frame.GetFileName()) : null,
frame.GetFileLineNumber()
);
}
if (Settings.ExceptionDetail) {
html.Append("<br/>CLR Stack Trace:<br/>");
html.Append(EscapeHtml(ex.StackTrace != null ? ex.StackTrace : ex.ToString()));
}
return html.ToString();
}
return EscapeHtml(ex.StackTrace != null ? ex.StackTrace : ex.ToString());
}
/// <summary>
/// Render the line with the error plus some context lines
/// </summary>
private static string FormatSourceCode(DynamicExceptionInfo err) {
var sourceFile = err.SourceFileName;
int line = err.SourceLine;
if (sourceFile == null || line <= 0) {
return "";
}
Stream stream = null;
try {
stream = _runtime.Host.PlatformAdaptationLayer.OpenInputFileStream(sourceFile);
if (stream == null) {
return "";
}
} catch (IOException) {
return "";
}
int maxLen = (line + 2).ToString().Length;
var text = new StringBuilder();
using (StreamReader reader = new StreamReader(stream)) {
for (int i = 1; i <= line + 2; ++i) {
string lineText = reader.ReadLine();
if (null == lineText) {
break;
}
if (i < line - 2) {
continue;
}
string lineNum = i.ToString();
text.Append("Line ").Append(' ', maxLen - lineNum.Length).Append(lineNum).Append(": ");
lineText = EscapeHtml(lineText);
if (i == line) {
text.AppendFormat(_errorLineTemplate, lineText, _errorLineId);
} else {
text.Append(lineText);
}
if (i != line + 2) {
text.Append("<br />");
}
}
}
return text.ToString();
}
/// <summary>
/// Get the dynamic exception info from the CLR exception, and format
/// it with the _errorHtmlTemplate.
/// </summary>
internal static string FormatErrorAsHtml(Exception e) {
// Get information about this exception object
DynamicExceptionInfo err = new DynamicExceptionInfo(e);
return string.Format(
_errorHtmlTemplate,
EscapeHtml(err.Message),
err.SourceFileName != null ? EscapeHtml(err.SourceFileName) : "",
FormatSourceCode(err),
EscapeHtml(err.ErrorTypeName),
FormatStackTrace(err),
_errorReportId,
_errorMessageId,
_errorSourceId,
_errorSourceFileId,
_errorSourceCodeId,
_errorDetailsId,
_errorTypeId,
_errorStackTraceId
);
}
private static string FormatErrorAsHtml(Exception e) {
// Get information about this exception object
DynamicExceptionInfo err = new DynamicExceptionInfo(e);
// Template for generating error HTML. Parameters are:
// 0 - message
// 1 - source file
// 2 - source code at error location
// 3 - error type
// 4 - stack trace
return string.Format(
_ErrorHtmlTemplate,
EscapeHtml(err.Message),
err.SourceFileName != null ? EscapeHtml(err.SourceFileName) : "",
FormatSourceCode(err),
EscapeHtml(err.ErrorTypeName),
FormatStackTrace(err));
}
