hwelltech block chain cpp sdk

Dependencies:   EthernetInterface SDFileSystem mbed-rtos mbed uniqueCPUID

Fork of bcsdk by Webb Xu

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”

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();
+    }
+}