hwelltech block chain cpp sdk
Dependencies: EthernetInterface SDFileSystem mbed-rtos mbed uniqueCPUID
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bcsdk 是 block chain sdk 的简写。它是由江苏恒为信息科技有限公司开发的 BlockChain 的 基于 mbed os 的 C++ 版本SDK,它能帮助开发者快速的在支持 mbed os 的芯片上开发 BlockChain 的应用。 bcsdk 的demo文件中包含了BlockChain中的 Key、Account、Asset、Transaction等方面的示例。其中: (1) Key 加密私钥是区块链上的主要授权机制。他们控制资产单位的发行和转让。 资产或帐户将定义发行或转移所需的单个密钥。 在 Key_test.cpp 中,我们实现了: 创建HSM密钥 键入密钥别名的名称(例如'gold','silver','bronze'),密钥别名是用于区分密钥的标签。
(2) Asset 资产是一种可以在区块链上发布的值类型。资产的所有单位均可互换,可以在各方之间直接交易,无需发行人参与。 在 Asset_test.cpp 中,我们实现了: 创建资产 键入资产别名的名称(例如'gold','silver','bronze'),资产别名是用于区分资产的标签。 选择“Key”键以使用现有的HSM密键,此密钥将用于此帐户中资产单位的发放和转移。
(3) Account 加帐户是恒为区块链核心平台中的一个对象,通过创建和跟踪控制程序来跟踪区块链上的资产的所有权。创建帐户时,您提供一个或多个“root”密钥和仲裁。 在 Account_test.cpp 中,我们实现了: 创建帐户 1 输入帐户别名的名称(例如'alice','bob'),帐户别名是用于区分帐户的标签。 2 键入名称以生成新的HSM密钥(例如'alice key','bob key'),此密钥将用于此帐户中资产单位的发放和转移。
(4) Transaction 交易包含一个或多个输入,以及一个或多个输出。恒为区块链核心平台的API允许您使用操作(包括发出,支出和返还)构建交易。 在 Transaction_test.cpp 中,我们实现了: 资产的交易 1 添加“账户支出”操作 2 为资产别名选择“Asset” 3 输入“100”作为金额 4 添加“使用帐户控制”操作 5 为帐户别名选择“Account” 6 为资产别名选择“Asset” 7 输入“100”作为金额 8 “提交”
Diff: Client.cpp
- Revision:
- 8:f2a567ee3a46
- Child:
- 10:aabd720e632c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Client.cpp Thu Sep 21 02:09:04 2017 +0000 @@ -0,0 +1,182 @@ +#include "Client.h" +//#include <WINSOCK2.H> +#include "mbed.h" +#include "EthernetInterface.h" +//#include "BlockChain.h" + + +Client::Client() +{ + m_strIP = "101.201.199.150"; + m_sPort = 80; + m_url = "/info"; + m_host = "testbc.hwelltech.com"; + m_token = "962cd39d-6496-4b23-a2c5-85e445069a78"; +} + +Client::Client(string ip,short port) +{ + this->m_strIP = ip; + this->m_sPort = port; + + m_url = "/info"; + m_host = "testbc.hwelltech.com"; + m_token = "962cd39d-6496-4b23-a2c5-85e445069a78"; +} + +Client::~Client() +{ + +} + +bool Client::build_post_raw(const string & url,const string & content, string & post_raw) +{ + return build_post_raw(url,m_host,m_token,content,post_raw); +} + +bool Client::build_post_raw(const string & url, const string & host, const string & token, const string & content, string & post_raw) +{ + bool ret = true; + + post_raw = ""; + post_raw.append("POST "+ url + " HTTP/1.1\r\n"); + post_raw.append("Host: " + host + "\r\n"); + post_raw.append("Connection: keep-alive\r\n"); + post_raw.append("accept: application/json\r\n"); + post_raw.append("content-type: application/json\r\n"); + string authorization = "Basic YmxvY2tnZW5lcmF0b3I6MTM3NzQzMDJlNTcyYmU4MWMxZmRmZjg2NGZiODA2Yjc2NjcxMzg5NzMwZjBjMDYwZDNlODExNTQ4OGRjNjQ2Mg=="; + //if(!token.empty()) + // authorization = Base64Encode(token) + post_raw.append("authorization: " + authorization + "\r\n"); + + char pLen[16] = {0}; + //sprintf_s(pLen, sizeof(pLen), "%d", content.length()); + sprintf(pLen, "%d", content.length()); + string strLen = pLen; + + post_raw.append("Content-Length: " + strLen + "\r\n"); + post_raw.append("\r\n"); + post_raw.append(content); + post_raw.append("\r\n\r\n"); + + return ret; +} + +int Client::http_post(const string & url,const string & content,string & strOut) +{ + string post_raw = ""; + build_post_raw(url,content,post_raw); + return http_post_raw(post_raw,strOut); +} + +int Client::http_post_raw(const string &strIn,string &strOut) +{ + string strReq; + string strRep; + strReq = strIn; + + //SOCKET sClient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + TCPSocketConnection sClient; +/* + if(sClient == INVALID_SOCKET) + { + printf("invalid socket!"); + return 0; + } +*/ +#ifdef WIN32 + // windows下是这样设置超时时间 + int recvTimeout = 3 * 1000; //30s + int sendTimeout = 3 * 1000; //30s + setsockopt(sClient, SOL_SOCKET, SO_RCVTIMEO, (char *)&recvTimeout ,sizeof(int)); + setsockopt(sClient, SOL_SOCKET, SO_SNDTIMEO, (char *)&sendTimeout ,sizeof(int)); +#elif __LINUX__ + // linux下是这样设置超时时间 + struct timeval timeout = {3,0}; + setsockopt(sClient, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout,sizeof(struct timeval)); + setsockopt(sClient, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout,sizeof(struct timeval)); +#else + unsigned int timeout = 1500; + sClient.set_blocking(false, timeout); // Timeout after (1.5)s +#endif + + +/* + sockaddr_in serAddr; + serAddr.sin_family = AF_INET; + serAddr.sin_port = htons(m_sPort); + serAddr.sin_addr.S_un.S_addr = inet_addr(m_strIP.c_str()); + if(connect(sClient, (sockaddr *)&serAddr, sizeof(serAddr)) == SOCKET_ERROR) + { + printf("connect error !"); + closesocket(sClient); + return SOCKET_ERROR; + } +*/ + while (sClient.connect(m_strIP.c_str(), m_sPort) < 0) { + printf("Unable to connect to (%s) on port (%d)\n", m_strIP.c_str(), m_sPort); + wait(1); + } + printf("Connected to Server at %s\n", m_strIP.c_str()); + + int ret = 0; + +/* + int left = strReq.length(); + unsigned int pos = 0; + ret = send(sClient, strReq.c_str(), strReq.length(), 0); + while (ret < left ) + { + pos = pos + ret; + ret = send(sClient, strReq.c_str() + pos, strReq.length() - pos, 0); + ret = sClient.send(strReq.c_str() + pos, strReq.length() - pos); + if (ret < 0) + { + return SOCKET_ERROR; + } + } +*/ + ret = sClient.send_all((char *)strReq.c_str(), strReq.length()); + if (ret < 0) + { + //get last error + //get errno + return ret; + } + +#ifdef DEBUG_LOG + cout<< ">>>>>>>>>>HTTP Request (Length = "<< strReq.length() << "):\n" << strReq << endl; +#endif + + + char recData[BUFSIZE+1] = {0}; + + ret = 0; + //ret = recv(sClient, recData, BUFSIZE, 0); + ret = sClient.receive(recData, BUFSIZE); + strRep.append(recData); + + // 第一次收数据可能没有收完全,所以一直收到没有数据为止,这里会堵塞 + while (ret > 0) + { + memset(recData,0,BUFSIZE); + //ret = recv(sClient, recData, BUFSIZE, 0); + ret = sClient.receive(recData, BUFSIZE); + + if (ret > 0) + { + strRep.append(recData); + } + } + + strOut = strRep; + +#ifdef DEBUG_LOG + cout<< ">>>>>>>>>>HTTP Response (Length = "<< strRep.length() << "):\n" << strRep << endl; +#endif + + // Clean up + //closesocket(sClient); + sClient.close(); + return 0; +}