无法使用WifiClientSecure将https协议与ESP8266连接
我正在努力争取ESP8266的位置。我接着说。 这是我的arduino代码:无法使用WifiClientSecure将https协议与ESP8266连接,https,arduino-esp8266,Https,Arduino Esp8266,我正在努力争取ESP8266的位置。我接着说。 这是我的arduino代码: #include <ESP8266HTTPClient.h> #include <ArduinoJson.h> #include "ESP8266WiFi.h" char myssid[] = "Your wifi/hotspot name"; char mypass[] = "Your password"; const char* Host = "www.unwiredlabs.com"
#include <ESP8266HTTPClient.h>
#include <ArduinoJson.h>
#include "ESP8266WiFi.h"
char myssid[] = "Your wifi/hotspot name";
char mypass[] = "Your password";
const char* Host = "www.unwiredlabs.com";
String endpoint = "/v2/process.php";
String token = "d99cccda52ec0b";
String jsonString = "{\n";
double latitude = 0.0;
double longitude = 0.0;
double accuracy = 0.0;
void setup(){
Serial.begin(115200);
// Set WiFi to station mode and disconnect from an AP if it was previously connected
WiFi.mode(WIFI_STA);
WiFi.disconnect();
Serial.println("Setup done");
// We start by connecting to a WiFi network
Serial.print("Connecting to ");
Serial.println(myssid);
WiFi.begin(myssid, mypass);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println(".");
}
void loop() {
char bssid[6];
DynamicJsonBuffer jsonBuffer;
// WiFi.scanNetworks will return the number of networks found
int n = WiFi.scanNetworks();
Serial.println("scan done");
if (n == 0 ) {
Serial.println("No networks available");
} else {
Serial.print(n);
Serial.println(" networks found");
}
// now build the jsonString...
jsonString = "{\n";
jsonString += "\"token\" : \"";
jsonString += token;
jsonString += "\",\n";
jsonString += "\"id\" : \"saikirandevice01\",\n";
jsonString += "\"wifi\": [\n";
for (int j = 0; j < n; ++j) {
jsonString += "{\n";
jsonString += "\"bssid\" : \"";
jsonString += (WiFi.BSSIDstr(j));
jsonString += "\",\n";
jsonString += "\"signal\": ";
jsonString += WiFi.RSSI(j);
jsonString += "\n";
if (j < n - 1) {
jsonString += "},\n";
} else {
jsonString += "}\n";
}
}
jsonString += ("]\n");
jsonString += ("}\n");
Serial.println(jsonString);
WiFiClientSecure client;
//Connect to the client and make the api call
Serial.println("Requesting URL: https://" + (String)Host + endpoint);
if (client.connect(Host, 443)) {
Serial.println("Connected");
client.println("POST " + endpoint + " HTTP/1.1");
client.println("Host: " + (String)Host);
client.println("Connection: close");
client.println("Content-Type: application/json");
client.println("User-Agent: Arduino/1.0");
client.print("Content-Length: ");
client.println(jsonString.length());
client.println();
client.print(jsonString);
delay(500);
}
//Read and parse all the lines of the reply from server
while (client.available()) {
String line = client.readStringUntil('\r');
JsonObject& root = jsonBuffer.parseObject(line);
if (root.success()) {
latitude = root["lat"];
longitude = root["lon"];
accuracy = root["accuracy"];
Serial.println();
Serial.print("Latitude = ");
Serial.println(latitude, 6);
Serial.print("Longitude = ");
Serial.println(longitude, 6);
Serial.print("Accuracy = ");
Serial.println(accuracy);
}
}
Serial.println("closing connection");
Serial.println();
client.stop();
delay(5000);
}
然后,我尝试使用urlhttps://unwiredlabs.com/v2/process.php
在chrome浏览器上。这是一条信息:
{
status: "error",
message: "Invalid request",
balance: 0,
help: "Check for misplaced commas and use double quotes to encapsulate strings"
}
这证明了这个url是存在的,但当我在Postman
上尝试时,它显示:
然后,我在Postman上关闭了SSL证书验证。它以403禁止
错误响应。
因此,我认为导致问题的原因是WifiClientSecure
的SSL证书验证
任何人都可以提供帮助?SSL—至少这段代码尝试使用它的方式—需要您尝试连接到的站点的指纹。在尝试连接到该站点之前,代码需要告知其客户端对象站点的指纹 步骤1:从站点手动检索指纹: 我在Chrome中浏览并复制了站点证书,然后在Windows上的git bash中使用openSSL提取指纹:
openssl x509 -noout -fingerprint -sha1 -inform pem -in certificate-file.cer > fingerprint.txt
然后我编辑了生成的fingerprint.txt文件,将每个“:”替换为一个空格
在网上搜索有关如何使用Chrome或您正在使用的任何浏览器复制cite证书的详细信息
步骤2:编辑代码以将指纹添加到草图:
我添加了常量“sslFingerprint”,并在调用client.connect()之前添加了对client.setFingerprint()的调用
然后,我删除了与连接到站点无关的代码,创建了一个示例草图,演示了与unwiredlabs.com的成功连接:
#include <ESP8266HTTPClient.h>
#include "ESP8266WiFi.h"
// The SSL Fingerprint of https://www.unwiredlabs.com
// Certificate expires October 9, 2020
const char *sslFingerprint
= "C3 3E 2F 21 CB 15 4E 02 D5 27 E5 F6 EF FB 31 AE 91 51 A3 5D";
char myssid[] = "yourWiFiSSID";
char mypass[] = "yourWiFiPassword";
const char* Host = "www.unwiredlabs.com";
String endpoint = "/v2/process.php";
void setup() {
Serial.begin(9600);
// Set WiFi to station mode and disconnect from an AP if it was previously connected
WiFi.mode(WIFI_STA);
WiFi.disconnect();
Serial.println("Setup done");
// We start by connecting to a WiFi network
Serial.print("Connecting to ");
Serial.println(myssid);
WiFi.begin(myssid, mypass);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println(".");
}
void loop() {
WiFiClientSecure client;
//Connect to the client and make the api call
Serial.println("Requesting URL: https://" + (String)Host + endpoint);
client.setFingerprint(sslFingerprint);
if (client.connect(Host, 443)) {
Serial.println("Connected");
}
Serial.println("closing connection");
Serial.println();
client.stop();
delay(5000);
}
这不会连接字符串
“POST”+端点+“HTTP/1.1”
。使用单独的prints@Jural感谢您的回复,但它无法解决问题,因为client.connect()
returnfalse
value,程序没有进入if
block.P.S.,我从Github上的Arduino ESP8266支持代码HTTPSRequest示例草图中导出了我使用的代码:
#include <ESP8266HTTPClient.h>
#include "ESP8266WiFi.h"
// The SSL Fingerprint of https://www.unwiredlabs.com
// Certificate expires October 9, 2020
const char *sslFingerprint
= "C3 3E 2F 21 CB 15 4E 02 D5 27 E5 F6 EF FB 31 AE 91 51 A3 5D";
char myssid[] = "yourWiFiSSID";
char mypass[] = "yourWiFiPassword";
const char* Host = "www.unwiredlabs.com";
String endpoint = "/v2/process.php";
void setup() {
Serial.begin(9600);
// Set WiFi to station mode and disconnect from an AP if it was previously connected
WiFi.mode(WIFI_STA);
WiFi.disconnect();
Serial.println("Setup done");
// We start by connecting to a WiFi network
Serial.print("Connecting to ");
Serial.println(myssid);
WiFi.begin(myssid, mypass);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println(".");
}
void loop() {
WiFiClientSecure client;
//Connect to the client and make the api call
Serial.println("Requesting URL: https://" + (String)Host + endpoint);
client.setFingerprint(sslFingerprint);
if (client.connect(Host, 443)) {
Serial.println("Connected");
}
Serial.println("closing connection");
Serial.println();
client.stop();
delay(5000);
}
......
Requesting URL: https://www.unwiredlabs.com/v2/process.php
Connected
closing connection