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: main.cpp
- Revision:
- 0:28bc7ce77e20
- Child:
- 1:64f023138627
diff -r 000000000000 -r 28bc7ce77e20 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Sat Sep 07 04:43:57 2013 +0000 @@ -0,0 +1,147 @@ +#include "mbed.h" +#include "EthernetInterface.h" +#include "SDFileSystem.h" +#include "muri.h" +#include <stdio.h> +#include <string.h> + +#define HTTPD_SERVER_PORT 80 +#define HTTPD_MAX_REQ_LENGTH 1023 +#define HTTPD_MAX_HDR_LENGTH 255 +#define HTTPD_MAX_FNAME_LENGTH 127 +#define MURI_MAX_RESP_LENGTH 127 +#define I2C_BUFFER_SIZE 31 + +SDFileSystem sd(p5, p6, p7, p8, "sd"); // +// I2C i2c(p28, p27); +EthernetInterface eth; +TCPSocketServer server; +TCPSocketConnection client; + +char buffer[HTTPD_MAX_REQ_LENGTH+1]; +char httpHeader[HTTPD_MAX_HDR_LENGTH+1]; +char filename[HTTPD_MAX_FNAME_LENGTH+1]; +char obuf[MURI_MAX_RESP_LENGTH+1]; +char data[I2C_BUFFER_SIZE]; +char *uristr; +char *eou; +char *qrystr; + +FILE *fp; +int rdCnt; + +void get_file(char* uri) +{ + printf("get_file %s\n", uri); + char *lstchr = strrchr(uri, NULL) -1; + if ('/' == *lstchr) { + printf("Open directory /sd%s\n", uri); + *lstchr = 0; + sprintf(filename, "/sd%s", uri); + DIR *d = opendir(filename); + if (d != NULL) { + sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: Close\r\n\r\n"); + client.send(httpHeader,strlen(httpHeader)); + sprintf(httpHeader,"<html><head><title>Directory Listing</title></head><body><h1>%s</h1><ul>", uri); + client.send(httpHeader,strlen(httpHeader)); + struct dirent *p; + while((p = readdir(d)) != NULL) { + printf("%s\n", p->d_name); + sprintf(httpHeader,"<li>%s</li>", p->d_name); + client.send(httpHeader,strlen(httpHeader)); + } + } + closedir(d); + printf("Directory closed\n"); + sprintf(httpHeader,"</ul></body></html>"); + client.send(httpHeader,strlen(httpHeader)); + } else { + sprintf(filename, "/sd%s", uri); + fp = fopen(filename, "r"); + if (fp == NULL) { + sprintf(httpHeader,"HTTP/1.1 404 Not Found \r\nContent-Type: text\r\nConnection: Close\r\n\r\n"); + client.send(httpHeader,strlen(httpHeader)); + client.send(uri,strlen(uri)); + } else { + sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: Close\r\n\r\n"); + client.send(httpHeader,strlen(httpHeader)); + while ((rdCnt = fread(buffer, sizeof( char ), 1024, fp)) == 1024) { + client.send(buffer, rdCnt); + } + client.send(buffer, rdCnt); + fclose(fp); + } + } +} + +void get_cgi(char* uri) +{ + char *result; + muri(uri, data, obuf); + if (!strncmp(obuf, "200 ", 4)) { + result = obuf +4; + sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: Close\r\n\r\n"); + client.send(httpHeader,strlen(httpHeader)); + client.send(result,strlen(result)); + printf("result: %s", result); + } else { + sprintf(httpHeader,"HTTP/1.1 "); + client.send(httpHeader,strlen(httpHeader)); + client.send(obuf,strlen(obuf)); + sprintf(httpHeader,"\r\n"); + client.send(httpHeader,strlen(httpHeader)); + } + +} + + +int main (void) +{ +// EthernetInterface eth; + eth.init(); //Use DHCP + eth.connect(); + printf("IP Address is %s\n", eth.getIPAddress()); + +// TCPSocketServer server; + server.bind(HTTPD_SERVER_PORT); + server.listen(); + + while (true) { + printf("\nWait for new connection...\r\n"); + server.accept(client); + client.set_blocking(false, 1500); // Timeout after (1.5)s + + printf("Connection from: %s\r\n", client.get_address()); + while (true) { + int n = client.receive(buffer, sizeof(buffer)); + if (n <= 0) break; + printf("Recieved Data: %d\r\n\r\n%.*s\r\n",n,n,buffer); + if (n >= 1024) { + sprintf(httpHeader,"HTTP/1.1 413 Request Entity Too Large \r\nContent-Type: text\r\nConnection: Close\r\n\r\n"); + client.send(httpHeader,strlen(httpHeader)); + client.send(buffer,n); + break; + } else { + buffer[n]=0; + } + if (!strncmp(buffer, "GET ", 4)) { + uristr = buffer + 4; + eou = strstr(uristr, " "); + if (eou == NULL) { + sprintf(httpHeader,"HTTP/1.1 400 Bad Request \r\nContent-Type: text\r\nConnection: Close\r\n\r\n"); + client.send(httpHeader,strlen(httpHeader)); + client.send(buffer,n); + } else { + *eou = 0; + if (!strncmp(uristr, "/muri/", 6)) { + get_cgi(uristr+6); + } else { + get_file(uristr); + } + } + } + } + + client.close(); + } +}