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OAuth 1.0 library recommended by NetSuite for c#
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using System; | |
using System.Collections.Generic; | |
using System.Security.Cryptography; | |
using System.Text; | |
// https://gist.github.com/ecounysis/7889b67704a26f26369399a636105233 | |
// https://netsuite.custhelp.com/app/answers/detail/a_id/42169/kw/C%23%20>%20RESTlet%20Authentication%20Using%20Token%20(Token-Based%20Authentication) | |
namespace OAuth | |
{ | |
public class OAuthBase | |
{ | |
/// <summary> | |
/// Provides a predefined set of algorithms that are supported officially by the protocol | |
/// </summary> | |
public enum SignatureTypes | |
{ | |
HMACSHA1, | |
PLAINTEXT, | |
RSASHA1 | |
} | |
/// <summary> | |
/// Provides an internal structure to sort the query parameter | |
/// </summary> | |
protected class QueryParameter | |
{ | |
private string name = null; | |
private string value = null; | |
public QueryParameter(string name, string value) | |
{ | |
this.name = name; | |
this.value = value; | |
} | |
public string Name | |
{ | |
get { return name; } | |
} | |
public string Value | |
{ | |
get { return value; } | |
} | |
} | |
/// <summary> | |
/// Comparer class used to perform the sorting of the query parameters | |
/// </summary> | |
protected class QueryParameterComparer : IComparer<QueryParameter> | |
{ | |
#region IComparer<QueryParameter> Members | |
public int Compare(QueryParameter x, QueryParameter y) | |
{ | |
if (x.Name == y.Name) | |
{ | |
return string.Compare(x.Value, y.Value); | |
} | |
else | |
{ | |
return string.Compare(x.Name, y.Name); | |
} | |
} | |
#endregion | |
} | |
protected const string OAuthVersion = "1.0"; | |
protected const string OAuthParameterPrefix = "oauth_"; | |
// | |
// List of know and used oauth parameters' names | |
// | |
protected const string OAuthConsumerKeyKey = "oauth_consumer_key"; | |
protected const string OAuthCallbackKey = "oauth_callback"; | |
protected const string OAuthVersionKey = "oauth_version"; | |
protected const string OAuthSignatureMethodKey = "oauth_signature_method"; | |
protected const string OAuthSignatureKey = "oauth_signature"; | |
protected const string OAuthTimestampKey = "oauth_timestamp"; | |
protected const string OAuthNonceKey = "oauth_nonce"; | |
protected const string OAuthTokenKey = "oauth_token"; | |
protected const string OAuthTokenSecretKey = "oauth_token_secret"; | |
protected const string HMACSHA1SignatureType = "HMAC-SHA1"; | |
protected const string PlainTextSignatureType = "PLAINTEXT"; | |
protected const string RSASHA1SignatureType = "RSA-SHA1"; | |
protected Random random = new Random(); | |
protected string unreservedChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.~"; | |
/// <summary> | |
/// Helper function to compute a hash value | |
/// </summary> | |
/// <param name="hashAlgorithm">The hashing algoirhtm used. If that algorithm needs some initialization, like HMAC and its derivatives, they should be initialized prior to passing it to this function</param> | |
/// <param name="data">The data to hash</param> | |
/// <returns>a Base64 string of the hash value</returns> | |
private string ComputeHash(HashAlgorithm hashAlgorithm, string data) | |
{ | |
if (hashAlgorithm == null) | |
{ | |
throw new ArgumentNullException("hashAlgorithm"); | |
} | |
if (string.IsNullOrEmpty(data)) | |
{ | |
throw new ArgumentNullException("data"); | |
} | |
byte[] dataBuffer = System.Text.Encoding.ASCII.GetBytes(data); | |
byte[] hashBytes = hashAlgorithm.ComputeHash(dataBuffer); | |
return Convert.ToBase64String(hashBytes); | |
} | |
/// <summary> | |
/// Internal function to cut out all non oauth query string parameters (all parameters not begining with "oauth_") | |
/// </summary> | |
/// <param name="parameters">The query string part of the Url</param> | |
/// <returns>A list of QueryParameter each containing the parameter name and value</returns> | |
private List<QueryParameter> GetQueryParameters(string parameters) | |
{ | |
if (parameters.StartsWith("?")) | |
{ | |
parameters = parameters.Remove(0, 1); | |
} | |
List<QueryParameter> result = new List<QueryParameter>(); | |
if (!string.IsNullOrEmpty(parameters)) | |
{ | |
string[] p = parameters.Split('&'); | |
foreach (string s in p) | |
{ | |
if (!string.IsNullOrEmpty(s) && !s.StartsWith(OAuthParameterPrefix)) | |
{ | |
if (s.IndexOf('=') > -1) | |
{ | |
string[] temp = s.Split('='); | |
result.Add(new QueryParameter(temp[0], temp[1])); | |
} | |
else | |
{ | |
result.Add(new QueryParameter(s, string.Empty)); | |
} | |
} | |
} | |
} | |
return result; | |
} | |
/// <summary> | |
/// This is a different Url Encode implementation since the default .NET one outputs the percent encoding in lower case. | |
/// While this is not a problem with the percent encoding spec, it is used in upper case throughout OAuth | |
/// </summary> | |
/// <param name="value">The value to Url encode</param> | |
/// <returns>Returns a Url encoded string</returns> | |
protected string UrlEncode(string value) | |
{ | |
StringBuilder result = new StringBuilder(); | |
foreach (char symbol in value) | |
{ | |
if (unreservedChars.IndexOf(symbol) != -1) | |
{ | |
result.Append(symbol); | |
} | |
else | |
{ | |
result.Append('%' + String.Format("{0:X2}", (int)symbol)); | |
} | |
} | |
return result.ToString(); | |
} | |
/// <summary> | |
/// Normalizes the request parameters according to the spec | |
/// </summary> | |
/// <param name="parameters">The list of parameters already sorted</param> | |
/// <returns>a string representing the normalized parameters</returns> | |
protected string NormalizeRequestParameters(IList<QueryParameter> parameters) | |
{ | |
StringBuilder sb = new StringBuilder(); | |
QueryParameter p = null; | |
for (int i = 0; i < parameters.Count; i++) | |
{ | |
p = parameters[i]; | |
sb.AppendFormat("{0}={1}", p.Name, p.Value); | |
if (i < parameters.Count - 1) | |
{ | |
sb.Append("&"); | |
} | |
} | |
return sb.ToString(); | |
} | |
/// <summary> | |
/// Generate the signature base that is used to produce the signature | |
/// </summary> | |
/// <param name="url">The full url that needs to be signed including its non OAuth url parameters</param> | |
/// <param name="consumerKey">The consumer key</param> | |
/// <param name="token">The token, if available. If not available pass null or an empty string</param> | |
/// <param name="tokenSecret">The token secret, if available. If not available pass null or an empty string</param> | |
/// <param name="httpMethod">The http method used. Must be a valid HTTP method verb (POST,GET,PUT, etc)</param> | |
/// <param name="signatureType">The signature type. To use the default values use <see cref="OAuthBase.SignatureTypes">OAuthBase.SignatureTypes</see>.</param> | |
/// <returns>The signature base</returns> | |
public string GenerateSignatureBase(Uri url, string consumerKey, string token, string tokenSecret, string httpMethod, string timeStamp, string nonce, string signatureType, out string normalizedUrl, out string normalizedRequestParameters) | |
{ | |
if (token == null) | |
{ | |
token = string.Empty; | |
} | |
if (tokenSecret == null) | |
{ | |
tokenSecret = string.Empty; | |
} | |
if (string.IsNullOrEmpty(consumerKey)) | |
{ | |
throw new ArgumentNullException("consumerKey"); | |
} | |
if (string.IsNullOrEmpty(httpMethod)) | |
{ | |
throw new ArgumentNullException("httpMethod"); | |
} | |
if (string.IsNullOrEmpty(signatureType)) | |
{ | |
throw new ArgumentNullException("signatureType"); | |
} | |
normalizedUrl = null; | |
normalizedRequestParameters = null; | |
List<QueryParameter> parameters = GetQueryParameters(url.Query); | |
parameters.Add(new QueryParameter(OAuthVersionKey, OAuthVersion)); | |
parameters.Add(new QueryParameter(OAuthNonceKey, nonce)); | |
parameters.Add(new QueryParameter(OAuthTimestampKey, timeStamp)); | |
parameters.Add(new QueryParameter(OAuthSignatureMethodKey, signatureType)); | |
parameters.Add(new QueryParameter(OAuthConsumerKeyKey, consumerKey)); | |
if (!string.IsNullOrEmpty(token)) | |
{ | |
parameters.Add(new QueryParameter(OAuthTokenKey, token)); | |
} | |
parameters.Sort(new QueryParameterComparer()); | |
normalizedUrl = string.Format("{0}://{1}", url.Scheme, url.Host); | |
if (!((url.Scheme == "http" && url.Port == 80) || (url.Scheme == "https" && url.Port == 443))) | |
{ | |
normalizedUrl += ":" + url.Port; | |
} | |
normalizedUrl += url.AbsolutePath; | |
normalizedRequestParameters = NormalizeRequestParameters(parameters); | |
StringBuilder signatureBase = new StringBuilder(); | |
signatureBase.AppendFormat("{0}&", httpMethod.ToUpper()); | |
signatureBase.AppendFormat("{0}&", UrlEncode(normalizedUrl)); | |
signatureBase.AppendFormat("{0}", UrlEncode(normalizedRequestParameters)); | |
return signatureBase.ToString(); | |
} | |
/// <summary> | |
/// Generate the signature value based on the given signature base and hash algorithm | |
/// </summary> | |
/// <param name="signatureBase">The signature based as produced by the GenerateSignatureBase method or by any other means</param> | |
/// <param name="hash">The hash algorithm used to perform the hashing. If the hashing algorithm requires initialization or a key it should be set prior to calling this method</param> | |
/// <returns>A base64 string of the hash value</returns> | |
public string GenerateSignatureUsingHash(string signatureBase, HashAlgorithm hash) | |
{ | |
return ComputeHash(hash, signatureBase); | |
} | |
/// <summary> | |
/// Generates a signature using the HMAC-SHA1 algorithm | |
/// </summary> | |
/// <param name="url">The full url that needs to be signed including its non OAuth url parameters</param> | |
/// <param name="consumerKey">The consumer key</param> | |
/// <param name="consumerSecret">The consumer seceret</param> | |
/// <param name="token">The token, if available. If not available pass null or an empty string</param> | |
/// <param name="tokenSecret">The token secret, if available. If not available pass null or an empty string</param> | |
/// <param name="httpMethod">The http method used. Must be a valid HTTP method verb (POST,GET,PUT, etc)</param> | |
/// <returns>A base64 string of the hash value</returns> | |
public string GenerateSignature(Uri url, string consumerKey, string consumerSecret, string token, string tokenSecret, string httpMethod, string timeStamp, string nonce, out string normalizedUrl, out string normalizedRequestParameters) | |
{ | |
return GenerateSignature(url, consumerKey, consumerSecret, token, tokenSecret, httpMethod, timeStamp, nonce, SignatureTypes.HMACSHA1, out normalizedUrl, out normalizedRequestParameters); | |
} | |
/// <summary> | |
/// Generates a signature using the specified signatureType | |
/// </summary> | |
/// <param name="url">The full url that needs to be signed including its non OAuth url parameters</param> | |
/// <param name="consumerKey">The consumer key</param> | |
/// <param name="consumerSecret">The consumer seceret</param> | |
/// <param name="token">The token, if available. If not available pass null or an empty string</param> | |
/// <param name="tokenSecret">The token secret, if available. If not available pass null or an empty string</param> | |
/// <param name="httpMethod">The http method used. Must be a valid HTTP method verb (POST,GET,PUT, etc)</param> | |
/// <param name="signatureType">The type of signature to use</param> | |
/// <returns>A base64 string of the hash value</returns> | |
public string GenerateSignature(Uri url, string consumerKey, string consumerSecret, string token, string tokenSecret, string httpMethod, string timeStamp, string nonce, SignatureTypes signatureType, out string normalizedUrl, out string normalizedRequestParameters) | |
{ | |
normalizedUrl = null; | |
normalizedRequestParameters = null; | |
switch (signatureType) | |
{ | |
case SignatureTypes.PLAINTEXT: | |
return UrlEncode(string.Format("{0}&{1}", consumerSecret, tokenSecret)); | |
case SignatureTypes.HMACSHA1: | |
string signatureBase = GenerateSignatureBase(url, consumerKey, token, tokenSecret, httpMethod, timeStamp, nonce, HMACSHA1SignatureType, out normalizedUrl, out normalizedRequestParameters); | |
HMACSHA1 hmacsha1 = new HMACSHA1(); | |
hmacsha1.Key = Encoding.ASCII.GetBytes(string.Format("{0}&{1}", UrlEncode(consumerSecret), string.IsNullOrEmpty(tokenSecret) ? "" : UrlEncode(tokenSecret))); | |
return GenerateSignatureUsingHash(signatureBase, hmacsha1); | |
case SignatureTypes.RSASHA1: | |
throw new NotImplementedException(); | |
default: | |
throw new ArgumentException("Unknown signature type", "signatureType"); | |
} | |
} | |
/// <summary> | |
/// Generate the timestamp for the signature | |
/// </summary> | |
/// <returns></returns> | |
public virtual string GenerateTimeStamp() | |
{ | |
// Default implementation of UNIX time of the current UTC time | |
TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0); | |
return Convert.ToInt64(ts.TotalSeconds).ToString(); | |
} | |
/// <summary> | |
/// Generate a nonce | |
/// </summary> | |
/// <returns></returns> | |
public virtual string GenerateNonce() | |
{ | |
// Just a simple implementation of a random number between 123400 and 9999999 | |
return random.Next(123400, 9999999).ToString(); | |
} | |
} | |
} |
tried this code to call, getting Invalid "INVALID_LOGIN_ATTEMPT". In Postman it works. am I missing anything?
`
//string netsuite_base_url = "https://test-sb1.restlets.api.netsuite.com/app/site/hosting/restlet.nl? script=941&deploy=1&FC=SGD&TC=USD&ED=02/11/2022"; void option3() { var netsuiteHelper = new OAuthBase(); var normalizedurl = ""; var normallizedRequestParam = ""; var timeStamp = netsuiteHelper.GenerateTimeStamp(); var nounce = netsuiteHelper.GenerateNonce(); string signature = netsuiteHelper.GenerateSignature(new Uri(netsuite_base_url), consumerKey, ConsumerSecret, TokenId, TokenSecret, "GET", timeStamp, nounce, OAuthBase.SignatureTypes.HMACSHA1, out normalizedurl, out normallizedRequestParam); var netSuiteAuthorization = "OAuth " + "realm=" + "\"" + realm + "\"" + "," + "oauth_consumer_key=" + "\"" + consumerKey + "\"" + "," + "oauth_token=" + "\"" + TokenId + "\"" + "," + "oauth_signature_method=" + "\"" + "HMAC-SHA256" + "\"" + "," + "oauth_timestamp=" + "\"" + timeStamp + "\"" + "," + "oauth_nonce=" + "\"" + nounce + "\"" + "," + "oauth_version=" + "\"" + "1.0" + "\"" + "," + "oauth_signature= " + "\"" + signature + "\""; var client = new RestClient(netsuite_base_url); var request = new RestRequest(); request.AddHeader("Authorization", netSuiteAuthorization); request.AddHeader("Content-Type", "application/json"); var response = client.Execute(request); Console.WriteLine(response.Content); }
`
I have the same problem
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tried this code to call, getting Invalid "INVALID_LOGIN_ATTEMPT". In Postman it works. am I missing anything?
`
`