Exemplo n.º 1
0
        /**
         * Parse the parameters from an OAuth Authorization or WWW-Authenticate
         * header. The realm is included as a parameter. If the given header doesn't
         * start with "OAuth ", return an empty list.
         */
        public static List <OAuth.Parameter> decodeAuthorization(String authorization)
        {
            List <OAuth.Parameter> into = new List <OAuth.Parameter>();

            if (authorization != null)
            {
                Match m = AUTHORIZATION.Match(authorization);
                if (m.Success)
                {
                    if (m.Groups[1].Value.Equals(AUTH_SCHEME))
                    {
                        foreach (String nvp in Regex.Split(m.Groups[2].Value, "\\s*,\\s*"))
                        {
                            m = NVP.Match(nvp);
                            if (m.Success)
                            {
                                String name  = Rfc3986.Decode(m.Groups[1].Value);
                                String value = Rfc3986.Decode(m.Groups[2].Value);
                                into.Add(new OAuth.Parameter(name, value));
                            }
                        }
                    }
                }
            }
            return(into);
        }
Exemplo n.º 2
0
        /// <summary>
        /// Splits a ampersand-separated list of key-value pairs, decodes the keys and
        /// values, and adds them to a NameValueCollection. Keys and values are separated
        /// by equals signs.
        /// </summary>
        /// <param name="input">The key-value pair list</param>
        /// <returns>A name value collection, which may be empty.</returns>
        /// <exception cref="System.FormatException">
        /// If the string is not a series of key-value pairs separated by ampersands,
        /// or if one of the keys is null or empty, or if one of the keys or values is
        /// not properly encoded.
        /// </exception>
        public static NameValueCollection SplitAndDecode(string input)
        {
            NameValueCollection parameters = new NameValueCollection();

            if (string.IsNullOrEmpty(input))
            {
                return(parameters);
            }

            foreach (string pair in input.Split('&'))
            {
                string[] parts = pair.Split('=');

                if (parts.Length != 2)
                {
                    throw new FormatException("Pair is not a key-value pair");
                }

                string key = Rfc3986.Decode(parts[0]);
                if (string.IsNullOrEmpty(key))
                {
                    throw new FormatException("Key cannot be null or empty");
                }

                string value = Rfc3986.Decode(parts[1]);

                parameters.Add(key, value);
            }

            return(parameters);
        }
Exemplo n.º 3
0
        /// <summary>
        /// Join the name-value pairs into a string seperated with ampersands.
        /// Each name and value is first RFC 3986 encoded and values are separated
        /// from names with equal signs.
        /// </summary>
        /// <param name="values">The name value collection to encode and join</param>
        /// <returns>An RFC 3986 compliant string</returns>
        public static string EncodeAndJoin(NameValueCollection values)
        {
            if (values == null)
            {
                return(string.Empty);
            }

            StringBuilder enc = new StringBuilder();

            bool first = true;

            foreach (string key in values.Keys)
            {
                string encKey = Rfc3986.Encode(key);
                foreach (string value in values.GetValues(key))
                {
                    if (!first)
                    {
                        enc.Append("&");
                    }
                    else
                    {
                        first = false;
                    }

                    enc.Append(encKey).Append("=").Append(Rfc3986.Encode(value));
                }
            }

            return(enc.ToString());
        }
Exemplo n.º 4
0
        /** Parse a form-urlencoded document. */
        public static List <Parameter> decodeForm(String form)
        {
            List <Parameter> list = new List <Parameter>();

            if (!isEmpty(form))
            {
                foreach (String nvp in form.Split(new[] { '&' }, StringSplitOptions.RemoveEmptyEntries))
                {
                    int    equals = nvp.IndexOf('=');
                    String name;
                    String value;
                    if (equals < 0)
                    {
                        name  = Rfc3986.Decode(nvp);
                        value = null;
                    }
                    else
                    {
                        name  = Rfc3986.Decode(nvp.Substring(0, equals));
                        value = Rfc3986.Decode(nvp.Substring(equals + 1));
                    }
                    list.Add(new Parameter(name, value));
                }
            }
            return(list);
        }
Exemplo n.º 5
0
        /** Construct a &-separated list of the given values, percentEncoded. */
        public static String percentEncode(List <string> values)
        {
            StringBuilder p = new StringBuilder();

            foreach (string v in values)
            {
                if (p.Length > 0)
                {
                    p.Append("&");
                }
                p.Append(Rfc3986.Encode(ToString(v)));
            }
            return(p.ToString());
        }
Exemplo n.º 6
0
        /**
         * Construct a WWW-Authenticate or Authentication header value, containing
         * the given realm plus all the parameters whose names begin with "oauth_".
         */
        public String getAuthorizationHeader(String realm)
        {
            StringBuilder into = new StringBuilder(AUTH_SCHEME);

            into.Append(" realm=\"").Append(Rfc3986.Encode(realm)).Append('"');
            beforeGetParameter();
            if (parameters != null)
            {
                foreach (var parameter in parameters)
                {
                    String name = ToString(parameter.Key);
                    if (name.StartsWith("oauth_"))
                    {
                        into.Append(", ");
                        into.Append(Rfc3986.Encode(name)).Append("=\"")
                        .Append(
                            Rfc3986.Encode(ToString(parameter
                                                    .Value))).Append('"');
                    }
                }
            }
            return(into.ToString());
        }
Exemplo n.º 7
0
 /**
  * Write a form-urlencoded document into the given stream, containing the
  * given sequence of name/value pairs.
  */
 public static void formEncode(List <Parameter> parameters, Stream into)
 {
     if (parameters != null)
     {
         bool   first = true;
         byte[] towrite;
         foreach (Parameter parameter in parameters)
         {
             if (first)
             {
                 first = false;
             }
             else
             {
                 towrite = Encoding.UTF8.GetBytes("&");
                 into.Write(towrite, 0, towrite.Length);
             }
             towrite = Encoding.UTF8.GetBytes(Rfc3986.Encode(ToString(parameter.Key)) +
                                              "=" + Rfc3986.Encode(ToString(parameter.Value)));
             into.Write(towrite, 0, towrite.Length);
         }
     }
 }
Exemplo n.º 8
0
 public override String ToString()
 {
     return(Rfc3986.Encode(Key) + '=' + Rfc3986.Encode(Value));
 }