海康开放平台海康威视合作生态致力打造一个能力开放体系、两个生态圈，Hikvision AI Cloud开放平台是能力开放体系的核心内容。它是海康威视基于多年在视频及物联网核心技术积累之上，融合AI、大数据、云计算等技术，为合作伙伴提供的一个二次开发及创新的平台。/docs/docId?productId=5c67f1e2f05948198c909700&version=%2Ff95e951cefc54578b523d1738f65f0a1&curNodeId=a0f95defa04344f8b3582eb839eccf70
public class HIKOpenAPI{public static string HttpPost(string url,string api, string body, string ak, string sk) {Log.Logs("user", Log.LogType.Info, $"Send|| url(api).{url + api}");Log.Logs("user", Log.LogType.Info, $"Send|| body.{body}");var headers = new Dictionary<string, string> { { "Accept", "*/*" }, { "Content-Type", "application/json" } };var request = new Request(Method.POST_STRING, url, api, ak, sk, 10000) {Headers = headers,SignHeaderPrefixList = null,Querys = null,StringBody = body};var result= DoPoststring(request.Host, request.Path, request.Timeout, request.Headers, request.Querys, request.StringBody, request.SignHeaderPrefixList, request.AppKey, request.AppSecret, false);Log.Logs("user", Log.LogType.Info, $"Recv|| result.{result}");return result;}//Post请求方法public static string DoPoststring(string host, string path, int connectTimeout, Dictionary<string, string> headers,Dictionary<string, string> querys, string body, List<string> signHeaderPrefixList, string appKey,string appSecret, bool autoDown){try{headers = initialBasicHeader("POST", path, headers, querys, null, signHeaderPrefixList, appKey,appSecret);ServicePointManager.ServerCertificateValidationCallback =RemoteCertificateValidate;//验证服务器证书回调自动验证ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls12 |SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;HttpWebRequest request = (HttpWebRequest) WebRequest.Create(initUrl(host, path, querys));request.KeepAlive = false;request.ProtocolVersion = HttpVersion.Version10;//设置HTTP协议的并发连接数//ServicePointManager.DefaultConnectionLimit = 512;//关闭重定向request.AllowAutoRedirect = false;request.Method = "POST";request.Timeout = connectTimeout;string accept = headers["Accept"];request.Accept = accept;string contentType = headers["Content-Type"];request.ContentType = contentType;foreach (string headerKey in headers.Keys){if (headerKey.Contains("x-ca-")){request.Headers.Add(headerKey + ":" +(string.IsNullOrWhiteSpace(headers[headerKey]) ? "" : headers[headerKey]));}if (headerKey.Equals("tagId")){request.Headers.Add(headerKey + ":" +(string.IsNullOrWhiteSpace(headers[headerKey]) ? "" : headers[headerKey]));}}if (!string.IsNullOrWhiteSpace(body)){byte[] postBytes = Encoding.UTF8.GetBytes(body);request.ContentLength = postBytes.Length;Stream requestStream = request.GetRequestStream();requestStream.Write(postBytes, 0, postBytes.Length);requestStream.Close();}var response = (HttpWebResponse) request.GetResponse();var result = "";if (response.StatusCode != HttpStatusCode.OK) return result;using (StreamReader rdr = new StreamReader(response.GetResponseStream())){result = rdr.ReadToEnd();}return result;}catch (Exception ex){return new {code="404",msg= ex.Message }.Json();}}//获取当时时间戳public static long GetTimestamp(DateTime time){System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1, 0, 0, 0, 0));long t = (time.Ticks - startTime.Ticks)/10000; //除10000调整为13位return t;}private static bool RemoteCertificateValidate(object sender, X509Certificate cert, X509Chain chain,SslPolicyErrors error){//为了通过证书验证，总是返回truereturn true;}public static Dictionary<string, string> initialBasicHeader(string method, string path,Dictionary<string, string> headers, Dictionary<string, string> querys, Dictionary<string, string> bodys,List<string> signHeaderPrefixList, string appKey, string appSecret) //throws MalformedURLException{if (headers == null){headers = new Dictionary<string, string>();}headers["x-ca-timestamp"] = GetTimestamp(DateTime.Now).ToString();//headers["x-ca-nonce"] = "5d1b5861-2e04-4bdc-ab02-d393acc6e8df";headers["x-ca-nonce"] = System.Guid.NewGuid().ToString();headers["x-ca-key"] = appKey;headers["x-ca-signature"] = sign(appSecret, method, path, headers, querys, bodys, signHeaderPrefixList);return headers;}public static string initUrl(string host, string path, Dictionary<string, string> querys)//throws UnsupportedEncodingException{StringBuilder sbUrl = new StringBuilder();sbUrl.Append(host);if (!string.IsNullOrWhiteSpace(path)){sbUrl.Append(path);}if (null != querys){StringBuilder sbQuery = new StringBuilder();foreach (string queryKey in querys.Keys){if (0 < sbQuery.Length){sbQuery.Append("&");}if (string.IsNullOrWhiteSpace(queryKey) && !string.IsNullOrWhiteSpace(querys[queryKey])){sbQuery.Append(querys[queryKey]);}if (!string.IsNullOrWhiteSpace(queryKey)){sbQuery.Append(queryKey);if (!string.IsNullOrWhiteSpace(querys[queryKey])){sbQuery.Append("=").Append(HttpUtility.UrlEncode(querys[queryKey], Encoding.UTF8));}}}if (0 < sbQuery.Length){sbUrl.Append("?").Append(sbQuery);}}return sbUrl.ToString();}public static string sign(string secret, string method, string path, Dictionary<string, string> headers,Dictionary<string, string> querys, Dictionary<string, string> bodys, List<string> signHeaderPrefixList){try{//return HmacSHA256(buildstringToSign(method, path, headers, querys, bodys, signHeaderPrefixList), secret);/*---message里的内容---*///POST//*/*//application/json//x-ca-key:23125513//x-ca-nonce:12d28d90-a7c3-45cc-ae6a-0cc8d5e22118//x-ca-timestamp:1544495633599//artemis/api/resource/v1/org/advance/orgListstring message = buildstringToSign(method, path, headers, querys, bodys, signHeaderPrefixList);return HmacSHA256(message, secret);}catch (Exception ex){return ex.Message;}}public static string buildstringToSign(string method, string path, Dictionary<string, string> headers,Dictionary<string, string> querys, Dictionary<string, string> bodys, List<string> signHeaderPrefixList){StringBuilder sb = new StringBuilder();sb.Append(method.ToUpper()).Append("\n");if (null != headers){if (null != headers["Accept"]){sb.Append((string) headers["Accept"]);sb.Append("\n");}if (headers.Keys.Contains("Content-MD5") && null != headers["Content-MD5"]){sb.Append((string) headers["Content-MD5"]);sb.Append("\n");}if (null != headers["Content-Type"]){sb.Append((string) headers["Content-Type"]);sb.Append("\n");}if (headers.Keys.Contains("Date") && null != headers["Date"]){sb.Append((string) headers["Date"]);sb.Append("\n");}}sb.Append(buildHeaders(headers, signHeaderPrefixList));sb.Append(buildResource(path, querys, bodys));return sb.ToString();}public static string buildHeaders(Dictionary<string, string> headers, List<string> signHeaderPrefixList){StringBuilder sb = new StringBuilder();if (null != signHeaderPrefixList){signHeaderPrefixList.Remove("x-ca-signature");signHeaderPrefixList.Remove("Accept");signHeaderPrefixList.Remove("Content-MD5");signHeaderPrefixList.Remove("Content-Type");signHeaderPrefixList.Remove("Date");signHeaderPrefixList.Sort();}if (null != headers){Dictionary<string, string> sortDictionary = new Dictionary<string, string>();sortDictionary = headers;//按key值升序排序var dicSort = from objDic in sortDictionary orderby objDic.Key ascending select objDic;StringBuilder signHeadersStringBuilder = new StringBuilder();foreach (KeyValuePair<string, string> kvp in dicSort){if (kvp.Key.Replace(" ", "").Contains("x-ca-")){sb.Append(kvp.Key + ":");if (!string.IsNullOrWhiteSpace(kvp.Value)){sb.Append(kvp.Value);}sb.Append("\n");if (signHeadersStringBuilder.Length > 0){signHeadersStringBuilder.Append(",");}signHeadersStringBuilder.Append(kvp.Key);}}headers.Add("x-ca-signature-headers", signHeadersStringBuilder.ToString());}//x-ca-key:23125513//x-ca-nonce:12d28d90-a7c3-45cc-ae6a-0cc8d5e22118//x-ca-timestamp:1544495633599return sb.ToString();}public static string buildResource(string path, Dictionary<string, string> querys, Dictionary<string, string> bodys){StringBuilder sb = new StringBuilder();if (!string.IsNullOrWhiteSpace(path)){sb.Append(path);}Dictionary<string, string> sortDictionary = new Dictionary<string, string>();if (querys != null){//按key值升序排序var dicSort = from objDic in querys orderby objDic.Key ascending select objDic;foreach (KeyValuePair<string, string> kvp in dicSort){if (!string.IsNullOrWhiteSpace(kvp.Key)){sortDictionary[kvp.Key] = kvp.Value;}}}if (bodys != null){//按key值升序排序var dicSort = from objDic in bodys orderby objDic.Key ascending select objDic;foreach (KeyValuePair<string, string> kvp in dicSort){if (!string.IsNullOrWhiteSpace(kvp.Key)){sortDictionary[kvp.Key] = kvp.Value;}}}StringBuilder sbParam = new StringBuilder();//按key值升序排序var dicSortDictionary = from objDic in sortDictionary orderby objDic.Key ascending select objDic;foreach (KeyValuePair<string, string> kvp in dicSortDictionary){if (!string.IsNullOrWhiteSpace(kvp.Key)){if (sbParam.Length > 0){sbParam.Append("&");}sbParam.Append(kvp.Key);if (!string.IsNullOrWhiteSpace(kvp.Value)){sbParam.Append("=").Append(kvp.Value);}}}if (0 < sbParam.Length){sb.Append("?");sb.Append(sbParam);}//artemis/api/resource/v1/org/advance/orgListreturn sb.ToString();}public static string HmacSHA256(string message, string secret){secret = secret ?? "";var encoding = new System.Text.UTF8Encoding();byte[] keyByte = encoding.GetBytes(secret);byte[] messageBytes = encoding.GetBytes(message);using (var hmacsha256 = new HMACSHA256(keyByte)){byte[] hashmessage = puteHash(messageBytes);return Convert.ToBase64String(hashmessage);}}public static Dictionary<string, object> ConvertMapTimeStyle(Dictionary<string, object> paramMap){Dictionary<string, object> timeMap = new Dictionary<string, object>();try{foreach (string key in paramMap.Keys){object mapValueObj = paramMap[key];Dictionary<string, object> dic = mapValueObj as Dictionary<string, object>;if (dic != null){ConvertMapTimeStyle(dic);}//时间格式参数转为ISO8601DateTime mapDate;if (DateTime.TryParse(paramMap[key].ToString(), out mapDate)){string ISO8601time = mapDate.ToString("yyyy-MM-ddTHH:mm:ss.fffzzz");timeMap.Add(key, ISO8601time);}}if (timeMap.Count > 0){foreach (string key in timeMap.Keys){paramMap[key] = timeMap[key];}}return paramMap;}catch (Exception ex){return paramMap;}}public enum Method{GET,POST_FORM,POST_STRING,POST_BYTES,PUT_FORM,PUT_STRING,PUT_BYTES,DELETE}public class Request{public Request(){}public Request(Method method, string host, string path, string appKey, string appSecret, int timeout){this.Method = method;this.Host = host;this.Path = path;this.AppKey = appKey;this.AppSecret = appSecret;this.Timeout = timeout;}public Method Method { get; set; }public string Host { get; set; }public string Path { get; set; }public string AppKey { get; set; }public string AppSecret { get; set; }public int Timeout { get; set; }public Dictionary<string, string> Headers { get; set; }public Dictionary<string, string> Querys { get; set; }public Dictionary<string, string> Bodys { get; set; }public string StringBody { get; set; }public byte[] BytesBody { get; set; }public List<string> SignHeaderPrefixList { get; set; }}}
