public ValueProviderResult GetValue(string key)
{
var header = headers.FirstOrDefault(h => predicate(h, key));
if (header.Key.IsNotNullOrEmpty())
{
key = header.Key; // Replace the passed in key with the header name
var values = headers.GetValues(key);
if (values.Count() > 1) // We got a list of values
{
return(new ValueProviderResult(values, null, CultureInfo.CurrentCulture));
}
else
{
// We could have received multiple values (comma separated) or just one value
var value = values.First();
values = value.Split(',').Select(x => x.Trim()).ToArray();
if (values.Count() > 1)
{
return(new ValueProviderResult(values, null, CultureInfo.CurrentCulture));
}
else
{
return(new ValueProviderResult(value, value, CultureInfo.CurrentCulture));
}
}
}
return(null);
}
public static void ApplyRequestChainHeader(this HttpRequestHeaders headers, IRequestId requestId)
{
string headerValue = requestId.Value.ToString();
if (requestId.Depth.HasValue)
{
var newDepth = requestId.Depth.Value + 1;
headerValue = $"{requestId.Value}:{newDepth}";
}
var existingHeader = headers
.FirstOrDefault(a => string.Equals(a.Key, requestId.RequestChainHeaderKey));
if (!Equals(existingHeader, default(KeyValuePair <string, IEnumerable <string> >)))
{
if (existingHeader.Value.Any(a => string.Equals(a, headerValue, StringComparison.OrdinalIgnoreCase)))
{
// Header is already in place... exit no need to proceed
return;
}
else
{
var firstHeader = existingHeader.Value.FirstOrDefault();
var msg = $"Attempted to set RequestChainHeader when it already exists and does not match (\"{firstHeader}\")";
throw new InvalidOperationException(msg);
}
}
headers.Add(requestId.RequestChainHeaderKey, headerValue);
}
public ValueProviderResult GetValue(string key)
{
var header = headers.FirstOrDefault(h => predicate(h, key));
if (!String.IsNullOrEmpty(header.Key))
{
key = header.Key;
var values = headers.GetValues(key);
if (values.Count() > 1)
{
return(new ValueProviderResult(values, null, CultureInfo.CurrentCulture));
}
else
{
string value = values.First();
values = value.Split(',').Select(x => x.Trim()).ToArray();
if (values.Count() > 1)
{
return(new ValueProviderResult(values, null, CultureInfo.CurrentCulture));
}
else
{
return(new ValueProviderResult(value, value, CultureInfo.CurrentCulture));
}
}
}
return(null);
}
protected string GetHeader(HttpRequestHeaders headers, string key)
{
var header = headers.FirstOrDefault(a => a.Key.ToLower().Equals(key.ToLower()));
if (headers == null || !headers.Any() || header.Key == null || string.IsNullOrEmpty(header.Value.FirstOrDefault()))
{
throw new LoginFaildException("请求的Header中必须要有AppId和Secrect信息！");
}
return(header.Value.FirstOrDefault());
}
protected bool ReadAuthenticationContent(HttpRequestHeaders authenticationContent, string key, out string value)
{
value = string.Empty;
var content = authenticationContent.FirstOrDefault(pair => pair.Key == key);
if (content.Value == null || content.Value.Count() != 1)
{
return(false);
}
value = content.Value.First();
return(true);
}
/// <summary>
/// Determines if an incoming webhook request is authentic.
/// </summary>
/// <param name="requestHeaders">The request's headers.</param>
/// <param name="requestBody">The body of the request.</param>
/// <param name="shopifySecretKey">Your app's secret key.</param>
/// <returns>A boolean indicating whether the webhook is authentic or not.</returns>
public static bool IsAuthenticWebhook(HttpRequestHeaders requestHeaders, string requestBody, string shopifySecretKey)
{
var hmacHeaderValue = requestHeaders.FirstOrDefault(kvp => kvp.Key.Equals("X-Shopify-Hmac-SHA256", StringComparison.OrdinalIgnoreCase)).Value.FirstOrDefault();
if (string.IsNullOrEmpty(hmacHeaderValue))
{
return(false);
}
//Compute a hash from the apiKey and the request body
string hmacHeader = hmacHeaderValue;
HMACSHA256 hmac = new HMACSHA256(Encoding.UTF8.GetBytes(shopifySecretKey));
string hash = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(requestBody)));
//Webhook is valid if computed hash matches the header hash
return(hash == hmacHeader);
}
internal static int ValidateToken(HttpRequestHeaders headers)
{
//if (!headers.Contains("Authorization") || headers.FirstOrDefault(h => h.Key == "Authorization").Value?.FirstOrDefault() == null)
//{
// throw new SecurityException("Token is invalid");
//}
string headerToken = headers.FirstOrDefault(h => h.Key == "Authorization").Value?.FirstOrDefault();
if (string.IsNullOrEmpty(headerToken))
{
throw new SecurityException("Token is invalid");
}
headerToken = headerToken.Replace("bearer ", "");
var token = new JwtSecurityToken(headerToken);
var username = token.Claims.FirstOrDefault(c => c.Type == "sub")?.Value;
int id;
if (string.IsNullOrEmpty(username))
{
throw new SecurityException("Token is invalid");
}
if (!int.TryParse(username, out id))
{
throw new SecurityException("Token is invalid");
}
if (DateTime.Now > token.ValidTo)
{
throw new SecurityException("Token is invalid");
}
return(id);
}
public string GetHeader(HttpRequestHeaders headers, string headerName)
{
var headerValue = headers.FirstOrDefault(x => x.Key == headerName).Value?.First();
return(headerValue);
}
public static string GetAuthenticationInfoValue(this HttpRequestHeaders headers)
{
return(headers.FirstOrDefault(h => h.Key.Equals(SettingsManager.AuthenticationHeaderKey, StringComparison.OrdinalIgnoreCase)).Value?.FirstOrDefault());
}
private static string GetHeaderValue(HttpRequestHeaders headers, string header)
{
return(headers.FirstOrDefault(h => h.Key.ToLower() == header.ToLower()).Value?.FirstOrDefault()?.Split(',')[0]);
}