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add web socket error handling

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This commit is contained in:
Luke Pulverenti
2017-09-03 21:24:20 -04:00
parent 504f56d841
commit c4176d2320
5 changed files with 49 additions and 28 deletions
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61
Emby.Server.Implementations/TextEncoding/TextEncoding.cs
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@@ -27,18 +27,33 @@ namespace Emby.Server.Implementations.TextEncoding
return Encoding.ASCII;
}
private Encoding GetInitialEncoding(byte[] buffer)
private Encoding GetInitialEncoding(byte[] buffer, int count)
{
if (buffer[0] == 0xef && buffer[1] == 0xbb && buffer[2] == 0xbf)
return Encoding.UTF8;
if (buffer[0] == 0xfe && buffer[1] == 0xff)
return Encoding.Unicode;
if (buffer[0] == 0 && buffer[1] == 0 && buffer[2] == 0xfe && buffer[3] == 0xff)
return Encoding.UTF32;
if (buffer[0] == 0x2b && buffer[1] == 0x2f && buffer[2] == 0x76)
return Encoding.UTF7;
if (count >= 3)
{
if (buffer[0] == 0xef && buffer[1] == 0xbb && buffer[2] == 0xbf)
return Encoding.UTF8;
}
var result = new TextEncodingDetect().DetectEncoding(buffer, buffer.Length);
if (count >= 2)
{
if (buffer[0] == 0xfe && buffer[1] == 0xff)
return Encoding.Unicode;
}
if (count >= 4)
{
if (buffer[0] == 0 && buffer[1] == 0 && buffer[2] == 0xfe && buffer[3] == 0xff)
return Encoding.UTF32;
}
if (count >= 3)
{
if (buffer[0] == 0x2b && buffer[1] == 0x2f && buffer[2] == 0x76)
return Encoding.UTF7;
}
var result = new TextEncodingDetect().DetectEncoding(buffer, count);
switch (result)
{
@@ -64,9 +79,11 @@ namespace Emby.Server.Implementations.TextEncoding
}
private bool _langDetectInitialized;
public string GetDetectedEncodingName(byte[] bytes, string language, bool enableLanguageDetection)
public string GetDetectedEncodingName(byte[] bytes, int count, string language, bool enableLanguageDetection)
{
var encoding = GetInitialEncoding(bytes);
var index = 0;
var encoding = GetInitialEncoding(bytes, count);
if (encoding != null && encoding.Equals(Encoding.UTF8))
{
@@ -81,7 +98,7 @@ namespace Emby.Server.Implementations.TextEncoding
LanguageDetector.Initialize(_json);
}
language = DetectLanguage(bytes);
language = DetectLanguage(bytes, index, count);
if (!string.IsNullOrWhiteSpace(language))
{
@@ -89,7 +106,7 @@ namespace Emby.Server.Implementations.TextEncoding
}
}
var charset = DetectCharset(bytes, language);
var charset = DetectCharset(bytes, index, count, language);
if (!string.IsNullOrWhiteSpace(charset))
{
@@ -112,11 +129,11 @@ namespace Emby.Server.Implementations.TextEncoding
return null;
}
private string DetectLanguage(byte[] bytes)
private string DetectLanguage(byte[] bytes, int index, int count)
{
try
{
return LanguageDetector.DetectLanguage(Encoding.UTF8.GetString(bytes));
return LanguageDetector.DetectLanguage(Encoding.UTF8.GetString(bytes, index, count));
}
catch (NLangDetectException ex)
{
@@ -124,7 +141,7 @@ namespace Emby.Server.Implementations.TextEncoding
try
{
return LanguageDetector.DetectLanguage(Encoding.ASCII.GetString(bytes));
return LanguageDetector.DetectLanguage(Encoding.ASCII.GetString(bytes, index, count));
}
catch (NLangDetectException ex)
{
@@ -132,7 +149,7 @@ namespace Emby.Server.Implementations.TextEncoding
try
{
return LanguageDetector.DetectLanguage(Encoding.Unicode.GetString(bytes));
return LanguageDetector.DetectLanguage(Encoding.Unicode.GetString(bytes, index, count));
}
catch (NLangDetectException ex)
{
@@ -163,9 +180,9 @@ namespace Emby.Server.Implementations.TextEncoding
}
}
public Encoding GetDetectedEncoding(byte[] bytes, string language, bool enableLanguageDetection)
public Encoding GetDetectedEncoding(byte[] bytes, int size, string language, bool enableLanguageDetection)
{
var charset = GetDetectedEncodingName(bytes, language, enableLanguageDetection);
var charset = GetDetectedEncodingName(bytes, size, language, enableLanguageDetection);
return GetEncodingFromCharset(charset);
}
@@ -225,10 +242,10 @@ namespace Emby.Server.Implementations.TextEncoding
}
}
private string DetectCharset(byte[] bytes, string language)
private string DetectCharset(byte[] bytes, int index, int count, string language)
{
var detector = new CharsetDetector();
detector.Feed(bytes, 0, bytes.Length);
detector.Feed(bytes, index, count);
detector.DataEnd();
var charset = detector.Charset;