From 7a65748b040d32a4167cd59f85af1be8453279d4 Mon Sep 17 00:00:00 2001 From: LifeCoder Date: Sat, 24 Aug 2019 22:36:59 +0200 Subject: [PATCH] Update to my fix --- src/Shared/PlatformSupport/AssetLoader.cs | 1 - src/Shared/PlatformSupport/HttpUtility.cs | 693 ++++++++++++++++++ .../PlatformSupport/PlatformSupport.projitems | 1 + 3 files changed, 694 insertions(+), 1 deletion(-) create mode 100644 src/Shared/PlatformSupport/HttpUtility.cs diff --git a/src/Shared/PlatformSupport/AssetLoader.cs b/src/Shared/PlatformSupport/AssetLoader.cs index 06f0b114e8..1daec490b9 100644 --- a/src/Shared/PlatformSupport/AssetLoader.cs +++ b/src/Shared/PlatformSupport/AssetLoader.cs @@ -4,7 +4,6 @@ using System; using System.Collections.Generic; using System.IO; -using System.Web; using System.Linq; using System.Reflection; using Avalonia.Platform; diff --git a/src/Shared/PlatformSupport/HttpUtility.cs b/src/Shared/PlatformSupport/HttpUtility.cs new file mode 100644 index 0000000000..8a56481a19 --- /dev/null +++ b/src/Shared/PlatformSupport/HttpUtility.cs @@ -0,0 +1,693 @@ +using System.Collections; +using System.Collections.Generic; +using System.Collections.Specialized; +using System.Globalization; +using System.IO; +using System.Security.Permissions; +using System.Text; +using System.Web.Util; + +namespace Avalonia.Shared.PlatformSupport +{ + public sealed class HttpUtility + { + sealed class HttpQSCollection : NameValueCollection + { + public override string ToString() + { + int count = Count; + if (count == 0) + return ""; + StringBuilder sb = new StringBuilder(); + string[] keys = AllKeys; + for (int i = 0; i < count; i++) + { + sb.AppendFormat("{0}={1}&", keys[i], UrlEncode(this[keys[i]])); + } + if (sb.Length > 0) + sb.Length--; + return sb.ToString(); + } + } + + #region Constructors + + public HttpUtility() + { + } + + #endregion // Constructors + + #region Methods + + public static void HtmlAttributeEncode(string s, TextWriter output) + { + if (output == null) + { + throw new ArgumentNullException("output"); + } + HttpEncoder.Current.HtmlAttributeEncode(s, output); + } + + public static string HtmlAttributeEncode(string s) + { + if (s == null) + return null; + + using (var sw = new StringWriter()) + { + HttpEncoder.Current.HtmlAttributeEncode(s, sw); + return sw.ToString(); + } + } + + public static string UrlDecode(string str) + { + return UrlDecode(str, Encoding.UTF8); + } + + static char[] GetChars(MemoryStream b, Encoding e) + { + return e.GetChars(b.GetBuffer(), 0, (int)b.Length); + } + + static void WriteCharBytes(IList buf, char ch, Encoding e) + { + if (ch > 255) + { + foreach (byte b in e.GetBytes(new char[] { ch })) + buf.Add(b); + } + else + buf.Add((byte)ch); + } + + public static string UrlDecode(string str, Encoding e) + { + if (null == str) + return null; + + if (str.IndexOf('%') == -1 && str.IndexOf('+') == -1) + return str; + + if (e == null) + e = Encoding.UTF8; + + long len = str.Length; + var bytes = new List(); + int xchar; + char ch; + + for (int i = 0; i < len; i++) + { + ch = str[i]; + if (ch == '%' && i + 2 < len && str[i + 1] != '%') + { + if (str[i + 1] == 'u' && i + 5 < len) + { + // unicode hex sequence + xchar = GetChar(str, i + 2, 4); + if (xchar != -1) + { + WriteCharBytes(bytes, (char)xchar, e); + i += 5; + } + else + WriteCharBytes(bytes, '%', e); + } + else if ((xchar = GetChar(str, i + 1, 2)) != -1) + { + WriteCharBytes(bytes, (char)xchar, e); + i += 2; + } + else + { + WriteCharBytes(bytes, '%', e); + } + continue; + } + + if (ch == '+') + WriteCharBytes(bytes, ' ', e); + else + WriteCharBytes(bytes, ch, e); + } + + byte[] buf = bytes.ToArray(); + bytes = null; + return e.GetString(buf); + + } + + public static string UrlDecode(byte[] bytes, Encoding e) + { + if (bytes == null) + return null; + + return UrlDecode(bytes, 0, bytes.Length, e); + } + + static int GetInt(byte b) + { + char c = (char)b; + if (c >= '0' && c <= '9') + return c - '0'; + + if (c >= 'a' && c <= 'f') + return c - 'a' + 10; + + if (c >= 'A' && c <= 'F') + return c - 'A' + 10; + + return -1; + } + + static int GetChar(byte[] bytes, int offset, int length) + { + int value = 0; + int end = length + offset; + for (int i = offset; i < end; i++) + { + int current = GetInt(bytes[i]); + if (current == -1) + return -1; + value = (value << 4) + current; + } + + return value; + } + + static int GetChar(string str, int offset, int length) + { + int val = 0; + int end = length + offset; + for (int i = offset; i < end; i++) + { + char c = str[i]; + if (c > 127) + return -1; + + int current = GetInt((byte)c); + if (current == -1) + return -1; + val = (val << 4) + current; + } + + return val; + } + + public static string UrlDecode(byte[] bytes, int offset, int count, Encoding e) + { + if (bytes == null) + return null; + if (count == 0) + return String.Empty; + + if (bytes == null) + throw new ArgumentNullException("bytes"); + + if (offset < 0 || offset > bytes.Length) + throw new ArgumentOutOfRangeException("offset"); + + if (count < 0 || offset + count > bytes.Length) + throw new ArgumentOutOfRangeException("count"); + + StringBuilder output = new StringBuilder(); + MemoryStream acc = new MemoryStream(); + + int end = count + offset; + int xchar; + for (int i = offset; i < end; i++) + { + if (bytes[i] == '%' && i + 2 < count && bytes[i + 1] != '%') + { + if (bytes[i + 1] == (byte)'u' && i + 5 < end) + { + if (acc.Length > 0) + { + output.Append(GetChars(acc, e)); + acc.SetLength(0); + } + xchar = GetChar(bytes, i + 2, 4); + if (xchar != -1) + { + output.Append((char)xchar); + i += 5; + continue; + } + } + else if ((xchar = GetChar(bytes, i + 1, 2)) != -1) + { + acc.WriteByte((byte)xchar); + i += 2; + continue; + } + } + + if (acc.Length > 0) + { + output.Append(GetChars(acc, e)); + acc.SetLength(0); + } + + if (bytes[i] == '+') + { + output.Append(' '); + } + else + { + output.Append((char)bytes[i]); + } + } + + if (acc.Length > 0) + { + output.Append(GetChars(acc, e)); + } + + acc = null; + return output.ToString(); + } + + public static byte[] UrlDecodeToBytes(byte[] bytes) + { + if (bytes == null) + return null; + + return UrlDecodeToBytes(bytes, 0, bytes.Length); + } + + public static byte[] UrlDecodeToBytes(string str) + { + return UrlDecodeToBytes(str, Encoding.UTF8); + } + + public static byte[] UrlDecodeToBytes(string str, Encoding e) + { + if (str == null) + return null; + + if (e == null) + throw new ArgumentNullException("e"); + + return UrlDecodeToBytes(e.GetBytes(str)); + } + + public static byte[] UrlDecodeToBytes(byte[] bytes, int offset, int count) + { + if (bytes == null) + return null; + if (count == 0) + return new byte[0]; + + int len = bytes.Length; + if (offset < 0 || offset >= len) + throw new ArgumentOutOfRangeException("offset"); + + if (count < 0 || offset > len - count) + throw new ArgumentOutOfRangeException("count"); + + MemoryStream result = new MemoryStream(); + int end = offset + count; + for (int i = offset; i < end; i++) + { + char c = (char)bytes[i]; + if (c == '+') + { + c = ' '; + } + else if (c == '%' && i < end - 2) + { + int xchar = GetChar(bytes, i + 1, 2); + if (xchar != -1) + { + c = (char)xchar; + i += 2; + } + } + result.WriteByte((byte)c); + } + + return result.ToArray(); + } + + public static string UrlEncode(string str) + { + return UrlEncode(str, Encoding.UTF8); + } + + public static string UrlEncode(string str, Encoding e) + { + if (str == null) + return null; + + if (str == String.Empty) + return String.Empty; + + bool needEncode = false; + int len = str.Length; + for (int i = 0; i < len; i++) + { + char c = str[i]; + if ((c < '0') || (c < 'A' && c > '9') || (c > 'Z' && c < 'a') || (c > 'z')) + { + if (HttpEncoder.NotEncoded(c)) + continue; + + needEncode = true; + break; + } + } + + if (!needEncode) + return str; + + // avoided GetByteCount call + byte[] bytes = new byte[e.GetMaxByteCount(str.Length)]; + int realLen = e.GetBytes(str, 0, str.Length, bytes, 0); + return Encoding.ASCII.GetString(UrlEncodeToBytes(bytes, 0, realLen)); + } + + public static string UrlEncode(byte[] bytes) + { + if (bytes == null) + return null; + + if (bytes.Length == 0) + return String.Empty; + + return Encoding.ASCII.GetString(UrlEncodeToBytes(bytes, 0, bytes.Length)); + } + + public static string UrlEncode(byte[] bytes, int offset, int count) + { + if (bytes == null) + return null; + + if (bytes.Length == 0) + return String.Empty; + + return Encoding.ASCII.GetString(UrlEncodeToBytes(bytes, offset, count)); + } + + public static byte[] UrlEncodeToBytes(string str) + { + return UrlEncodeToBytes(str, Encoding.UTF8); + } + + public static byte[] UrlEncodeToBytes(string str, Encoding e) + { + if (str == null) + return null; + + if (str.Length == 0) + return new byte[0]; + + byte[] bytes = e.GetBytes(str); + return UrlEncodeToBytes(bytes, 0, bytes.Length); + } + + public static byte[] UrlEncodeToBytes(byte[] bytes) + { + if (bytes == null) + return null; + + if (bytes.Length == 0) + return new byte[0]; + + return UrlEncodeToBytes(bytes, 0, bytes.Length); + } + + public static byte[] UrlEncodeToBytes(byte[] bytes, int offset, int count) + { + if (bytes == null) + return null; + return HttpEncoder.Current.UrlEncode(bytes, offset, count); + } + + public static string UrlEncodeUnicode(string str) + { + if (str == null) + return null; + + return Encoding.ASCII.GetString(UrlEncodeUnicodeToBytes(str)); + } + + public static byte[] UrlEncodeUnicodeToBytes(string str) + { + if (str == null) + return null; + + if (str.Length == 0) + return new byte[0]; + + MemoryStream result = new MemoryStream(str.Length); + foreach (char c in str) + { + HttpEncoder.UrlEncodeChar(c, result, true); + } + return result.ToArray(); + } + + /// + /// Decodes an HTML-encoded string and returns the decoded string. + /// + /// The HTML string to decode. + /// The decoded text. + public static string HtmlDecode(string s) + { + if (s == null) + return null; + + using (var sw = new StringWriter()) + { + HttpEncoder.Current.HtmlDecode(s, sw); + return sw.ToString(); + } + } + + /// + /// Decodes an HTML-encoded string and sends the resulting output to a TextWriter output stream. + /// + /// The HTML string to decode + /// The TextWriter output stream containing the decoded string. + public static void HtmlDecode(string s, TextWriter output) + { + if (output == null) + { + throw new ArgumentNullException("output"); + } + + if (!String.IsNullOrEmpty(s)) + { + HttpEncoder.Current.HtmlDecode(s, output); + } + } + + public static string HtmlEncode(string s) + { + if (s == null) + return null; + + using (var sw = new StringWriter()) + { + HttpEncoder.Current.HtmlEncode(s, sw); + return sw.ToString(); + } + } + + /// + /// HTML-encodes a string and sends the resulting output to a TextWriter output stream. + /// + /// The string to encode. + /// The TextWriter output stream containing the encoded string. + public static void HtmlEncode(string s, TextWriter output) + { + if (output == null) + { + throw new ArgumentNullException("output"); + } + + if (!String.IsNullOrEmpty(s)) + { + HttpEncoder.Current.HtmlEncode(s, output); + } + } + public static string HtmlEncode(object value) + { + if (value == null) + return null; + +#if !(MOBILE || NO_SYSTEM_WEB_DEPENDENCY) + IHtmlString htmlString = value as IHtmlString; + if (htmlString != null) + return htmlString.ToHtmlString(); +#endif + + return HtmlEncode(value.ToString()); + } + + public static string JavaScriptStringEncode(string value) + { + return JavaScriptStringEncode(value, false); + } + + public static string JavaScriptStringEncode(string value, bool addDoubleQuotes) + { + if (String.IsNullOrEmpty(value)) + return addDoubleQuotes ? "\"\"" : String.Empty; + + int len = value.Length; + bool needEncode = false; + char c; + for (int i = 0; i < len; i++) + { + c = value[i]; + + if (c >= 0 && c <= 31 || c == 34 || c == 39 || c == 60 || c == 62 || c == 92) + { + needEncode = true; + break; + } + } + + if (!needEncode) + return addDoubleQuotes ? "\"" + value + "\"" : value; + + var sb = new StringBuilder(); + if (addDoubleQuotes) + sb.Append('"'); + + for (int i = 0; i < len; i++) + { + c = value[i]; + if (c >= 0 && c <= 7 || c == 11 || c >= 14 && c <= 31 || c == 39 || c == 60 || c == 62) + sb.AppendFormat("\\u{0:x4}", (int)c); + else switch ((int)c) + { + case 8: + sb.Append("\\b"); + break; + + case 9: + sb.Append("\\t"); + break; + + case 10: + sb.Append("\\n"); + break; + + case 12: + sb.Append("\\f"); + break; + + case 13: + sb.Append("\\r"); + break; + + case 34: + sb.Append("\\\""); + break; + + case 92: + sb.Append("\\\\"); + break; + + default: + sb.Append(c); + break; + } + } + + if (addDoubleQuotes) + sb.Append('"'); + + return sb.ToString(); + } + public static string UrlPathEncode(string str) + { + return HttpEncoder.Current.UrlPathEncode(str); + } + + public static NameValueCollection ParseQueryString(string query) + { + return ParseQueryString(query, Encoding.UTF8); + } + + public static NameValueCollection ParseQueryString(string query, Encoding encoding) + { + if (query == null) + throw new ArgumentNullException("query"); + if (encoding == null) + throw new ArgumentNullException("encoding"); + if (query.Length == 0 || (query.Length == 1 && query[0] == '?')) + return new HttpQSCollection(); + if (query[0] == '?') + query = query.Substring(1); + + NameValueCollection result = new HttpQSCollection(); + ParseQueryString(query, encoding, result); + return result; + } + + internal static void ParseQueryString(string query, Encoding encoding, NameValueCollection result) + { + if (query.Length == 0) + return; + + string decoded = HtmlDecode(query); + int decodedLength = decoded.Length; + int namePos = 0; + bool first = true; + while (namePos <= decodedLength) + { + int valuePos = -1, valueEnd = -1; + for (int q = namePos; q < decodedLength; q++) + { + if (valuePos == -1 && decoded[q] == '=') + { + valuePos = q + 1; + } + else if (decoded[q] == '&') + { + valueEnd = q; + break; + } + } + + if (first) + { + first = false; + if (decoded[namePos] == '?') + namePos++; + } + + string name, value; + if (valuePos == -1) + { + name = null; + valuePos = namePos; + } + else + { + name = UrlDecode(decoded.Substring(namePos, valuePos - namePos - 1), encoding); + } + if (valueEnd < 0) + { + namePos = -1; + valueEnd = decoded.Length; + } + else + { + namePos = valueEnd + 1; + } + value = UrlDecode(decoded.Substring(valuePos, valueEnd - valuePos), encoding); + + result.Add(name, value); + if (namePos == -1) + break; + } + } + #endregion // Methods + } +} diff --git a/src/Shared/PlatformSupport/PlatformSupport.projitems b/src/Shared/PlatformSupport/PlatformSupport.projitems index 34515a0912..cec13ebffe 100644 --- a/src/Shared/PlatformSupport/PlatformSupport.projitems +++ b/src/Shared/PlatformSupport/PlatformSupport.projitems @@ -11,6 +11,7 @@ +