/// <summary> /// Parses RFC 2822 date-time from the specified value. /// </summary> /// <param name="value">RFC 2822 date-time string value.</param> /// <returns>Returns parsed datetime value.</returns> /// <exception cref="ArgumentNullException">Is raised when <b>value</b> is null.</exception> /// <exception cref="ArgumentException">Is raised when any of the arguments has invalid value.</exception> public static DateTime ParseRfc2822DateTime(string value) { if (value == null) { throw new ArgumentNullException(value); } //Try parse dt DateTime parsedTime; if (DateTime.TryParse(value, out parsedTime)) { return parsedTime; } /* RFC 2822 3. * date-time = [ day-of-week "," ] date FWS time [CFWS] * day-of-week = ([FWS] day-name) / obs-day-of-week * day-name = "Mon" / "Tue" / "Wed" / "Thu" / "Fri" / "Sat" / "Sun" * date = day month year * year = 4*DIGIT / obs-year * month = (FWS month-name FWS) / obs-month * month-name = "Jan" / "Feb" / "Mar" / "Apr" / "May" / "Jun" / "Jul" / "Aug" / "Sep" / "Oct" / "Nov" / "Dec" * day = ([FWS] 1*2DIGIT) / obs-day * time = time-of-day FWS zone * time-of-day = hour ":" minute [ ":" second ] * hour = 2DIGIT / obs-hour * minute = 2DIGIT / obs-minute * second = 2DIGIT / obs-second * zone = (( "+" / "-" ) 4DIGIT) / obs-zone * * The date and time-of-day SHOULD express local time. */ try { MIME_Reader r = new MIME_Reader(value); string v = r.Atom(); // Skip optional [ day-of-week "," ] and read "day". if (v.Length == 3) { r.Char(true); v = r.Atom(); } int day = Convert.ToInt32(v); v = r.Atom().ToLower(); int month = 1; if (v == "jan") { month = 1; } else if (v == "feb") { month = 2; } else if (v == "mar") { month = 3; } else if (v == "apr") { month = 4; } else if (v == "may") { month = 5; } else if (v == "jun") { month = 6; } else if (v == "jul") { month = 7; } else if (v == "aug") { month = 8; } else if (v == "sep") { month = 9; } else if (v == "oct") { month = 10; } else if (v == "nov") { month = 11; } else if (v == "dec") { month = 12; } else { throw new ArgumentException("Invalid month-name value '" + value + "'."); } int year = Convert.ToInt32(r.Atom()); int hour = Convert.ToInt32(r.Atom()); r.Char(true); int minute = Convert.ToInt32(r.Atom()); int second = 0; // We have optional "second". if (r.Peek(true) == ':') { r.Char(true); second = Convert.ToInt32(r.Atom()); } int timeZoneMinutes = 0; v = r.Atom(); // We have RFC 2822 date. For example: +2000. if (v[0] == '+' || v[0] == '-') { if (v[0] == '+') { timeZoneMinutes = (Convert.ToInt32(v.Substring(1, 2))*60 + Convert.ToInt32(v.Substring(3, 2))); } else { timeZoneMinutes = -(Convert.ToInt32(v.Substring(1, 2))*60 + Convert.ToInt32(v.Substring(3, 2))); } } // We have RFC 822 date with abbrevated time zone name. For example: GMT. else { v = v.ToUpper(); #region time zones // Alpha Time Zone (military). if (v == "A") { timeZoneMinutes = ((01*60) + 00); } // Australian Central Daylight Time. else if (v == "ACDT") { timeZoneMinutes = ((10*60) + 30); } // Australian Central Standard Time. else if (v == "ACST") { timeZoneMinutes = ((09*60) + 30); } // Atlantic Daylight Time. else if (v == "ADT") { timeZoneMinutes = -((03*60) + 00); } // Australian Eastern Daylight Time. else if (v == "AEDT") { timeZoneMinutes = ((11*60) + 00); } // Australian Eastern Standard Time. else if (v == "AEST") { timeZoneMinutes = ((10*60) + 00); } // Alaska Daylight Time. else if (v == "AKDT") { timeZoneMinutes = -((08*60) + 00); } // Alaska Standard Time. else if (v == "AKST") { timeZoneMinutes = -((09*60) + 00); } // Atlantic Standard Time. else if (v == "AST") { timeZoneMinutes = -((04*60) + 00); } // Australian Western Daylight Time. else if (v == "AWDT") { timeZoneMinutes = ((09*60) + 00); } // Australian Western Standard Time. else if (v == "AWST") { timeZoneMinutes = ((08*60) + 00); } // Bravo Time Zone (millitary). else if (v == "B") { timeZoneMinutes = ((02*60) + 00); } // British Summer Time. else if (v == "BST") { timeZoneMinutes = ((01*60) + 00); } // Charlie Time Zone (millitary). else if (v == "C") { timeZoneMinutes = ((03*60) + 00); } // Central Daylight Time. else if (v == "CDT") { timeZoneMinutes = -((05*60) + 00); } // Central European Daylight Time. else if (v == "CEDT") { timeZoneMinutes = ((02*60) + 00); } // Central European Summer Time. else if (v == "CEST") { timeZoneMinutes = ((02*60) + 00); } // Central European Time. else if (v == "CET") { timeZoneMinutes = ((01*60) + 00); } // Central Standard Time. else if (v == "CST") { timeZoneMinutes = -((06*60) + 00); } // Christmas Island Time. else if (v == "CXT") { timeZoneMinutes = ((01*60) + 00); } // Delta Time Zone (military). else if (v == "D") { timeZoneMinutes = ((04*60) + 00); } // Echo Time Zone (military). else if (v == "E") { timeZoneMinutes = ((05*60) + 00); } // Eastern Daylight Time. else if (v == "EDT") { timeZoneMinutes = -((04*60) + 00); } // Eastern European Daylight Time. else if (v == "EEDT") { timeZoneMinutes = ((03*60) + 00); } // Eastern European Summer Time. else if (v == "EEST") { timeZoneMinutes = ((03*60) + 00); } // Eastern European Time. else if (v == "EET") { timeZoneMinutes = ((02*60) + 00); } // Eastern Standard Time. else if (v == "EST") { timeZoneMinutes = -((05*60) + 00); } // Foxtrot Time Zone (military). else if (v == "F") { timeZoneMinutes = (06*60 + 00); } // Golf Time Zone (military). else if (v == "G") { timeZoneMinutes = ((07*60) + 00); } // Greenwich Mean Time. else if (v == "GMT") { timeZoneMinutes = 0000; } // Hotel Time Zone (military). else if (v == "H") { timeZoneMinutes = ((08*60) + 00); } // India Time Zone (military). else if (v == "I") { timeZoneMinutes = ((09*60) + 00); } // Irish Summer Time. else if (v == "IST") { timeZoneMinutes = ((01*60) + 00); } // Kilo Time Zone (millitary). else if (v == "K") { timeZoneMinutes = ((10*60) + 00); } // Lima Time Zone (millitary). else if (v == "L") { timeZoneMinutes = ((11*60) + 00); } // Mike Time Zone (millitary). else if (v == "M") { timeZoneMinutes = ((12*60) + 00); } // Mountain Daylight Time. else if (v == "MDT") { timeZoneMinutes = -((06*60) + 00); } // Mountain Standard Time. else if (v == "MST") { timeZoneMinutes = -((07*60) + 00); } // November Time Zone (military). else if (v == "N") { timeZoneMinutes = -((01*60) + 00); } // Newfoundland Daylight Time. else if (v == "NDT") { timeZoneMinutes = -((02*60) + 30); } // Norfolk (Island) Time. else if (v == "NFT") { timeZoneMinutes = ((11*60) + 30); } // Newfoundland Standard Time. else if (v == "NST") { timeZoneMinutes = -((03*60) + 30); } // Oscar Time Zone (military). else if (v == "O") { timeZoneMinutes = -((02*60) + 00); } // Papa Time Zone (military). else if (v == "P") { timeZoneMinutes = -((03*60) + 00); } // Pacific Daylight Time. else if (v == "PDT") { timeZoneMinutes = -((07*60) + 00); } // Pacific Standard Time. else if (v == "PST") { timeZoneMinutes = -((08*60) + 00); } // Quebec Time Zone (military). else if (v == "Q") { timeZoneMinutes = -((04*60) + 00); } // Romeo Time Zone (military). else if (v == "R") { timeZoneMinutes = -((05*60) + 00); } // Sierra Time Zone (military). else if (v == "S") { timeZoneMinutes = -((06*60) + 00); } // Tango Time Zone (military). else if (v == "T") { timeZoneMinutes = -((07*60) + 00); } // Uniform Time Zone (military). else if (v == "") { timeZoneMinutes = -((08*60) + 00); } // Coordinated Universal Time. else if (v == "UTC") { timeZoneMinutes = 0000; } // Victor Time Zone (militray). else if (v == "V") { timeZoneMinutes = -((09*60) + 00); } // Whiskey Time Zone (military). else if (v == "W") { timeZoneMinutes = -((10*60) + 00); } // Western European Daylight Time. else if (v == "WEDT") { timeZoneMinutes = ((01*60) + 00); } // Western European Summer Time. else if (v == "WEST") { timeZoneMinutes = ((01*60) + 00); } // Western European Time. else if (v == "WET") { timeZoneMinutes = 0000; } // Western Standard Time. else if (v == "WST") { timeZoneMinutes = ((08*60) + 00); } // X-ray Time Zone (military). else if (v == "X") { timeZoneMinutes = -((11*60) + 00); } // Yankee Time Zone (military). else if (v == "Y") { timeZoneMinutes = -((12*60) + 00); } // Zulu Time Zone (military). else if (v == "Z") { timeZoneMinutes = 0000; } #endregion } // Convert time to UTC and then back to local. DateTime timeUTC = new DateTime(year, month, day, hour, minute, second).AddMinutes(-(timeZoneMinutes)); return new DateTime(timeUTC.Year, timeUTC.Month, timeUTC.Day, timeUTC.Hour, timeUTC.Minute, timeUTC.Second, DateTimeKind.Utc).ToLocalTime(); } catch (Exception x) { string dymmy = x.Message; throw new ArgumentException("Argumnet 'value' value '" + value + "' is not valid RFC 822/2822 date-time string."); } }
/// <summary> /// Parses header field from the specified value. /// </summary> /// <param name="value">Header field value. Header field name must be included. For example: 'Content-Type: text/plain'.</param> /// <returns>Returns parsed header field.</returns> /// <exception cref="ArgumentNullException">Is raised when <b>value</b> is null reference.</exception> /// <exception cref="ParseException">Is raised when header field parsing errors.</exception> public static MIME_h_ContentType Parse(string value) { if (value == null) { throw new ArgumentNullException("value"); } MIME_h_ContentType retVal = new MIME_h_ContentType(); string[] name_value = value.Split(new[] {':'}, 2); if (name_value.Length != 2) { throw new ParseException("Invalid Content-Type: header field value '" + value + "'."); } MIME_Reader r = new MIME_Reader(name_value[1]); string type = r.Token(); if (type == null) { throw new ParseException("Invalid Content-Type: header field value '" + value + "'."); } retVal.m_Type = type; if (r.Char(false) != '/') { throw new ParseException("Invalid Content-Type: header field value '" + value + "'."); } string subtype = r.Token(); if (subtype == null) { //throw new ParseException("Invalid Content-Type: header field value '" + value + "'."); subtype = ""; } retVal.m_SubType = subtype; retVal.m_pParameters.Parse(r); retVal.m_ParseValue = value; retVal.m_IsModified = false; return retVal; }
/// <summary> /// Parses RFC 2822 date-time from the specified value. /// </summary> /// <param name="value">RFC 2822 date-time string value.</param> /// <returns>Returns parsed datetime value.</returns> /// <exception cref="ArgumentNullException">Is raised when <b>value</b> is null.</exception> /// <exception cref="ArgumentException">Is raised when any of the arguments has invalid value.</exception> public static DateTime ParseRfc2822DateTime(string value) { if (value == null) { throw new ArgumentNullException(value); } //Try parse dt DateTime parsedTime; if (DateTime.TryParse(value, out parsedTime)) { return(parsedTime); } /* RFC 2822 3. * date-time = [ day-of-week "," ] date FWS time [CFWS] * day-of-week = ([FWS] day-name) / obs-day-of-week * day-name = "Mon" / "Tue" / "Wed" / "Thu" / "Fri" / "Sat" / "Sun" * date = day month year * year = 4*DIGIT / obs-year * month = (FWS month-name FWS) / obs-month * month-name = "Jan" / "Feb" / "Mar" / "Apr" / "May" / "Jun" / "Jul" / "Aug" / "Sep" / "Oct" / "Nov" / "Dec" * day = ([FWS] 1*2DIGIT) / obs-day * time = time-of-day FWS zone * time-of-day = hour ":" minute [ ":" second ] * hour = 2DIGIT / obs-hour * minute = 2DIGIT / obs-minute * second = 2DIGIT / obs-second * zone = (( "+" / "-" ) 4DIGIT) / obs-zone * * The date and time-of-day SHOULD express local time. */ try { MIME_Reader r = new MIME_Reader(value); string v = r.Atom(); // Skip optional [ day-of-week "," ] and read "day". if (v.Length == 3) { r.Char(true); v = r.Atom(); } int day = Convert.ToInt32(v); v = r.Atom().ToLower(); int month = 1; if (v == "jan") { month = 1; } else if (v == "feb") { month = 2; } else if (v == "mar") { month = 3; } else if (v == "apr") { month = 4; } else if (v == "may") { month = 5; } else if (v == "jun") { month = 6; } else if (v == "jul") { month = 7; } else if (v == "aug") { month = 8; } else if (v == "sep") { month = 9; } else if (v == "oct") { month = 10; } else if (v == "nov") { month = 11; } else if (v == "dec") { month = 12; } else { throw new ArgumentException("Invalid month-name value '" + value + "'."); } int year = Convert.ToInt32(r.Atom()); int hour = Convert.ToInt32(r.Atom()); r.Char(true); int minute = Convert.ToInt32(r.Atom()); int second = 0; // We have optional "second". if (r.Peek(true) == ':') { r.Char(true); second = Convert.ToInt32(r.Atom()); } int timeZoneMinutes = 0; v = r.Atom(); // We have RFC 2822 date. For example: +2000. if (v[0] == '+' || v[0] == '-') { if (v[0] == '+') { timeZoneMinutes = (Convert.ToInt32(v.Substring(1, 2)) * 60 + Convert.ToInt32(v.Substring(3, 2))); } else { timeZoneMinutes = -(Convert.ToInt32(v.Substring(1, 2)) * 60 + Convert.ToInt32(v.Substring(3, 2))); } } // We have RFC 822 date with abbrevated time zone name. For example: GMT. else { v = v.ToUpper(); #region time zones // Alpha Time Zone (military). if (v == "A") { timeZoneMinutes = ((01 * 60) + 00); } // Australian Central Daylight Time. else if (v == "ACDT") { timeZoneMinutes = ((10 * 60) + 30); } // Australian Central Standard Time. else if (v == "ACST") { timeZoneMinutes = ((09 * 60) + 30); } // Atlantic Daylight Time. else if (v == "ADT") { timeZoneMinutes = -((03 * 60) + 00); } // Australian Eastern Daylight Time. else if (v == "AEDT") { timeZoneMinutes = ((11 * 60) + 00); } // Australian Eastern Standard Time. else if (v == "AEST") { timeZoneMinutes = ((10 * 60) + 00); } // Alaska Daylight Time. else if (v == "AKDT") { timeZoneMinutes = -((08 * 60) + 00); } // Alaska Standard Time. else if (v == "AKST") { timeZoneMinutes = -((09 * 60) + 00); } // Atlantic Standard Time. else if (v == "AST") { timeZoneMinutes = -((04 * 60) + 00); } // Australian Western Daylight Time. else if (v == "AWDT") { timeZoneMinutes = ((09 * 60) + 00); } // Australian Western Standard Time. else if (v == "AWST") { timeZoneMinutes = ((08 * 60) + 00); } // Bravo Time Zone (millitary). else if (v == "B") { timeZoneMinutes = ((02 * 60) + 00); } // British Summer Time. else if (v == "BST") { timeZoneMinutes = ((01 * 60) + 00); } // Charlie Time Zone (millitary). else if (v == "C") { timeZoneMinutes = ((03 * 60) + 00); } // Central Daylight Time. else if (v == "CDT") { timeZoneMinutes = -((05 * 60) + 00); } // Central European Daylight Time. else if (v == "CEDT") { timeZoneMinutes = ((02 * 60) + 00); } // Central European Summer Time. else if (v == "CEST") { timeZoneMinutes = ((02 * 60) + 00); } // Central European Time. else if (v == "CET") { timeZoneMinutes = ((01 * 60) + 00); } // Central Standard Time. else if (v == "CST") { timeZoneMinutes = -((06 * 60) + 00); } // Christmas Island Time. else if (v == "CXT") { timeZoneMinutes = ((01 * 60) + 00); } // Delta Time Zone (military). else if (v == "D") { timeZoneMinutes = ((04 * 60) + 00); } // Echo Time Zone (military). else if (v == "E") { timeZoneMinutes = ((05 * 60) + 00); } // Eastern Daylight Time. else if (v == "EDT") { timeZoneMinutes = -((04 * 60) + 00); } // Eastern European Daylight Time. else if (v == "EEDT") { timeZoneMinutes = ((03 * 60) + 00); } // Eastern European Summer Time. else if (v == "EEST") { timeZoneMinutes = ((03 * 60) + 00); } // Eastern European Time. else if (v == "EET") { timeZoneMinutes = ((02 * 60) + 00); } // Eastern Standard Time. else if (v == "EST") { timeZoneMinutes = -((05 * 60) + 00); } // Foxtrot Time Zone (military). else if (v == "F") { timeZoneMinutes = (06 * 60 + 00); } // Golf Time Zone (military). else if (v == "G") { timeZoneMinutes = ((07 * 60) + 00); } // Greenwich Mean Time. else if (v == "GMT") { timeZoneMinutes = 0000; } // Hotel Time Zone (military). else if (v == "H") { timeZoneMinutes = ((08 * 60) + 00); } // India Time Zone (military). else if (v == "I") { timeZoneMinutes = ((09 * 60) + 00); } // Irish Summer Time. else if (v == "IST") { timeZoneMinutes = ((01 * 60) + 00); } // Kilo Time Zone (millitary). else if (v == "K") { timeZoneMinutes = ((10 * 60) + 00); } // Lima Time Zone (millitary). else if (v == "L") { timeZoneMinutes = ((11 * 60) + 00); } // Mike Time Zone (millitary). else if (v == "M") { timeZoneMinutes = ((12 * 60) + 00); } // Mountain Daylight Time. else if (v == "MDT") { timeZoneMinutes = -((06 * 60) + 00); } // Mountain Standard Time. else if (v == "MST") { timeZoneMinutes = -((07 * 60) + 00); } // November Time Zone (military). else if (v == "N") { timeZoneMinutes = -((01 * 60) + 00); } // Newfoundland Daylight Time. else if (v == "NDT") { timeZoneMinutes = -((02 * 60) + 30); } // Norfolk (Island) Time. else if (v == "NFT") { timeZoneMinutes = ((11 * 60) + 30); } // Newfoundland Standard Time. else if (v == "NST") { timeZoneMinutes = -((03 * 60) + 30); } // Oscar Time Zone (military). else if (v == "O") { timeZoneMinutes = -((02 * 60) + 00); } // Papa Time Zone (military). else if (v == "P") { timeZoneMinutes = -((03 * 60) + 00); } // Pacific Daylight Time. else if (v == "PDT") { timeZoneMinutes = -((07 * 60) + 00); } // Pacific Standard Time. else if (v == "PST") { timeZoneMinutes = -((08 * 60) + 00); } // Quebec Time Zone (military). else if (v == "Q") { timeZoneMinutes = -((04 * 60) + 00); } // Romeo Time Zone (military). else if (v == "R") { timeZoneMinutes = -((05 * 60) + 00); } // Sierra Time Zone (military). else if (v == "S") { timeZoneMinutes = -((06 * 60) + 00); } // Tango Time Zone (military). else if (v == "T") { timeZoneMinutes = -((07 * 60) + 00); } // Uniform Time Zone (military). else if (v == "") { timeZoneMinutes = -((08 * 60) + 00); } // Coordinated Universal Time. else if (v == "UTC") { timeZoneMinutes = 0000; } // Victor Time Zone (militray). else if (v == "V") { timeZoneMinutes = -((09 * 60) + 00); } // Whiskey Time Zone (military). else if (v == "W") { timeZoneMinutes = -((10 * 60) + 00); } // Western European Daylight Time. else if (v == "WEDT") { timeZoneMinutes = ((01 * 60) + 00); } // Western European Summer Time. else if (v == "WEST") { timeZoneMinutes = ((01 * 60) + 00); } // Western European Time. else if (v == "WET") { timeZoneMinutes = 0000; } // Western Standard Time. else if (v == "WST") { timeZoneMinutes = ((08 * 60) + 00); } // X-ray Time Zone (military). else if (v == "X") { timeZoneMinutes = -((11 * 60) + 00); } // Yankee Time Zone (military). else if (v == "Y") { timeZoneMinutes = -((12 * 60) + 00); } // Zulu Time Zone (military). else if (v == "Z") { timeZoneMinutes = 0000; } #endregion } // Convert time to UTC and then back to local. DateTime timeUTC = new DateTime(year, month, day, hour, minute, second).AddMinutes(-(timeZoneMinutes)); return (new DateTime(timeUTC.Year, timeUTC.Month, timeUTC.Day, timeUTC.Hour, timeUTC.Minute, timeUTC.Second, DateTimeKind.Utc).ToLocalTime()); } catch (Exception x) { string dymmy = x.Message; throw new ArgumentException("Argumnet 'value' value '" + value + "' is not valid RFC 822/2822 date-time string."); } }
/// <summary> /// Default constructor. /// </summary> /// <param name="mediaType">Media type with subtype. For example <b>text/plain</b>.</param> /// <exception cref="ArgumentNullException">Is raised when <b>mediaType</b> is null reference.</exception> public MIME_h_ContentType(string mediaType) { if (mediaType == null) { throw new ArgumentNullException(mediaType); } /*string[] type_subtype = mediaType.Split(new[] {'/',}, 2); if (type_subtype.Length == 2) { if (type_subtype[0] == "" || !MIME_Reader.IsToken(type_subtype[0])) { throw new ArgumentException("Invalid argument 'mediaType' value '" + mediaType + "', value must be token."); } if (type_subtype[1] == "" || !MIME_Reader.IsToken(type_subtype[1])) { throw new ArgumentException("Invalid argument 'mediaType' value '" + mediaType + "', value must be token."); } m_Type = type_subtype[0]; m_SubType = type_subtype[1]; } else { throw new ArgumentException("Invalid argument 'mediaType' value '" + mediaType + "'."); } m_pParameters = new MIME_h_ParameterCollection(this); m_IsModified = true;*/ MIME_Reader r = new MIME_Reader(mediaType); string type = r.Token(); if (type == null) { throw new ParseException("Invalid Content-Type: header field value '" + mediaType + "'."); } m_Type = type; if (r.Char(false) != '/') { throw new ParseException("Invalid Content-Type: header field value '" + mediaType + "'."); } string subtype = r.Token(); if (subtype == null) { //throw new ParseException("Invalid Content-Type: header field value '" + value + "'."); subtype = ""; } m_SubType = subtype; m_pParameters = new MIME_h_ParameterCollection(this); m_pParameters.Parse(r); m_ParseValue = mediaType; m_IsModified = true; }
/// <summary> /// Parses parameters from the specified reader. /// </summary> /// <param name="reader">MIME reader.</param> /// <exception cref="ArgumentNullException">Is raised when <b>reader</b> is null reference.</exception> public void Parse(MIME_Reader reader) { if (reader == null) { throw new ArgumentNullException("reader"); } /* RFC 2231. */ while (true) { // End os stream reached. if (reader.Peek(true) == -1) { break; } // Next parameter start, just eat that char. else if (reader.Peek(true) == ';') { reader.Char(false); } else { string name = reader.Token(); if (name == null) { break; } string value = ""; // Parameter value specified. if (reader.Peek(true) == '=') { reader.Char(false); string v = reader.Word(); // Normally value may not be null, but following case: paramName=EOS. if (v != null) { value = v; } } // RFC 2231 encoded/splitted parameter. if (name.IndexOf('*') > -1) { string[] name_x_no_x = name.Split('*'); name = name_x_no_x[0]; Encoding charset = Encoding.ASCII; StringBuilder valueBuffer = new StringBuilder(); // We must have charset'language'value. // Examples: // URL*=utf-8''test; // URL*0*=utf-8''"test"; if ((name_x_no_x.Length == 2 && name_x_no_x[1] == "") || name_x_no_x.Length == 3) { string[] charset_language_value = value.Split('\''); charset = EncodingTools.GetEncodingByCodepageName(charset_language_value[0]) ?? Encoding.ASCII; valueBuffer.Append(charset_language_value[2]); } // No encoding, probably just splitted ASCII value. // Example: // URL*0="value1"; // URL*1="value2"; else { valueBuffer.Append(value); } // Read while value continues. while (true) { // End os stream reached. if (reader.Peek(true) == -1) { break; } // Next parameter start, just eat that char. else if (reader.Peek(true) == ';') { reader.Char(false); } else { if (!reader.StartsWith(name + "*")) { break; } reader.Token(); // Parameter value specified. if (reader.Peek(true) == '=') { reader.Char(false); string v = reader.Word(); // Normally value may not be null, but following case: paramName=EOS. if (v != null) { valueBuffer.Append(v); } } } } this[name] = DecodeExtOctet(valueBuffer.ToString(), charset); } // Regular parameter. else { this[name] = value; } } } m_IsModified = false; }
/// <summary> /// Returns header field parameters as string. /// </summary> /// <param name="charset">Charset to use to encode 8-bit characters. Value null means parameters not encoded.</param> /// <returns>Returns header field parameters as string.</returns> public string ToString(Encoding charset) { /* RFC 2231. * If parameter conatins 8-bit byte, we need to encode parameter value * If parameter value length bigger than MIME maximum allowed line length, * we need split value. */ if (charset == null) { charset = Encoding.Default; } StringBuilder retVal = new StringBuilder(); foreach (MIME_h_Parameter parameter in ToArray()) { if (string.IsNullOrEmpty(parameter.Value)) { retVal.Append(";\r\n\t" + parameter.Name); } // We don't need to encode or split value. else if ((charset == null || Core.IsAscii(parameter.Value)) && parameter.Value.Length < 76) { retVal.Append(";\r\n\t" + parameter.Name + "=" + TextUtils.QuoteString(parameter.Value)); } // We need to encode/split value. else { byte[] byteValue = charset.GetBytes(parameter.Value); List <string> values = new List <string>(); // Do encoding/splitting. int offset = 0; char[] valueBuff = new char[50]; foreach (byte b in byteValue) { // We need split value as RFC 2231 says. if (offset >= (50 - 3)) { values.Add(new string(valueBuff, 0, offset)); offset = 0; } // Normal char, we don't need to encode. if (MIME_Reader.IsAttributeChar((char)b)) { valueBuff[offset++] = (char)b; } // We need to encode byte as %X2. else { valueBuff[offset++] = '%'; valueBuff[offset++] = (b >> 4).ToString("X")[0]; valueBuff[offset++] = (b & 0xF).ToString("X")[0]; } } // Add pending buffer value. if (offset > 0) { values.Add(new string(valueBuff, 0, offset)); } for (int i = 0; i < values.Count; i++) { // Only fist value entry has charset and language info. if (charset != null && i == 0) { retVal.Append(";\r\n\t" + parameter.Name + "*" + i + "*=" + charset.WebName + "''" + values[i]); } else { retVal.Append(";\r\n\t" + parameter.Name + "*" + i + "*=" + values[i]); } } } } return(retVal.ToString()); }
/// <summary> /// Parses header field from the specified value. /// </summary> /// <param name="value">Header field value. Header field name must be included. For example: 'Content-Type: text/plain'.</param> /// <returns>Returns parsed header field.</returns> /// <exception cref="ArgumentNullException">Is raised when <b>value</b> is null reference.</exception> /// <exception cref="ParseException">Is raised when header field parsing errors.</exception> public static MIME_h_ContentDisposition Parse(string value) { if (value == null) { throw new ArgumentNullException("value"); } MIME_h_ContentDisposition retVal = new MIME_h_ContentDisposition(); string[] name_value = value.Split(new[] {':'}, 2); if (name_value.Length != 2) { throw new ParseException("Invalid Content-Type: header field value '" + value + "'."); } MIME_Reader r = new MIME_Reader(name_value[1]); string type = r.Token(); if (type == null) { throw new ParseException("Invalid Content-Disposition: header field value '" + value + "'."); } retVal.m_DispositionType = type; retVal.m_pParameters.Parse(r); retVal.m_ParseValue = value; return retVal; }
/// <summary> /// Parses parameters from the specified reader. /// </summary> /// <param name="reader">MIME reader.</param> /// <exception cref="ArgumentNullException">Is raised when <b>reader</b> is null reference.</exception> public void Parse(MIME_Reader reader) { if (reader == null) { throw new ArgumentNullException("reader"); } /* RFC 2231. */ while (true) { // End os stream reached. if (reader.Peek(true) == -1) { break; } // Next parameter start, just eat that char. else if (reader.Peek(true) == ';') { reader.Char(false); } else { string name = reader.Token(); if (name == null) break; string value = ""; // Parameter value specified. if (reader.Peek(true) == '=') { reader.Char(false); string v = reader.Word(); // Normally value may not be null, but following case: paramName=EOS. if (v != null) { value = v; } } // RFC 2231 encoded/splitted parameter. if (name.IndexOf('*') > -1) { string[] name_x_no_x = name.Split('*'); name = name_x_no_x[0]; Encoding charset = Encoding.ASCII; StringBuilder valueBuffer = new StringBuilder(); // We must have charset'language'value. // Examples: // URL*=utf-8''test; // URL*0*=utf-8''"test"; if ((name_x_no_x.Length == 2 && name_x_no_x[1] == "") || name_x_no_x.Length == 3) { string[] charset_language_value = value.Split('\''); charset = EncodingTools.GetEncodingByCodepageName(charset_language_value[0]) ?? Encoding.ASCII; valueBuffer.Append(charset_language_value[2]); } // No encoding, probably just splitted ASCII value. // Example: // URL*0="value1"; // URL*1="value2"; else { valueBuffer.Append(value); } // Read while value continues. while (true) { // End os stream reached. if (reader.Peek(true) == -1) { break; } // Next parameter start, just eat that char. else if (reader.Peek(true) == ';') { reader.Char(false); } else { if (!reader.StartsWith(name + "*")) { break; } reader.Token(); // Parameter value specified. if (reader.Peek(true) == '=') { reader.Char(false); string v = reader.Word(); // Normally value may not be null, but following case: paramName=EOS. if (v != null) { valueBuffer.Append(v); } } } } this[name] = DecodeExtOctet(valueBuffer.ToString(),charset); } // Regular parameter. else { this[name] = value; } } } m_IsModified = false; }