应用接口 POST

/* 接口: app
 * 依赖: libcurl + OpenSSL
 * 编译: g++ gn_demo.cpp -o gn_demo -lcurl -lcrypto -std=c++17
 */
#include <algorithm>
#include <cstdio>
#include <cstring>
#include <map>
#include <string>
#include <vector>
#include <ctime>
#include <curl/curl.h>
#include <openssl/md5.h>

static std::string md5_upper(const std::string &src) {
    unsigned char dig[MD5_DIGEST_LENGTH];
    MD5(reinterpret_cast<const unsigned char *>(src.data()), src.size(), dig);
    char out[33];
    for (int i = 0; i < MD5_DIGEST_LENGTH; ++i) std::sprintf(out + i * 2, "%02X", dig[i]);
    out[32] = '\0';
    return out;
}

static bool skip_sign_key(const std::string &k) {
    return k == "s" || k == "sign" || k == "safe_code" || (!k.empty() && k[0] == '_');
}

static std::string build_sign(std::map<std::string, std::string> params, const std::string &sign_key) {
    std::string s;
    for (const auto &kv : params) {
        if (skip_sign_key(kv.first) || kv.second.empty()) continue;
        if (!s.empty()) s += '&';
        s += kv.first + "=" + kv.second;
    }
    s += sign_key;
    return md5_upper(s);
}

static size_t write_cb(char *ptr, size_t size, size_t nmemb, void *userdata) {
    auto *out = static_cast<std::string *>(userdata);
    out->append(ptr, size * nmemb);
    return size * nmemb;
}

static std::string http_post_form(const std::string &url, const std::map<std::string, std::string> &fields) {
    CURL *curl = curl_easy_init();
    if (!curl) return {};
    std::string body;
    for (const auto &kv : fields) {
        char *ek = curl_easy_escape(curl, kv.first.c_str(), 0);
        char *ev = curl_easy_escape(curl, kv.second.c_str(), 0);
        if (!body.empty()) body += '&';
        body += ek; body += '='; body += ev;
        curl_free(ek); curl_free(ev);
    }
    std::string resp;
    curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
    curl_easy_setopt(curl, CURLOPT_POST, 1L);
    curl_easy_setopt(curl, CURLOPT_POSTFIELDS, body.c_str());
    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_cb);
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, &resp);
    curl_easy_setopt(curl, CURLOPT_TIMEOUT, 30L);
    curl_easy_perform(curl);
    curl_easy_cleanup(curl);
    return resp;
}

int main() {
    const std::string api_url  = "https://gnyanzheng.cn/api/app";
    const std::string sign_key = "YOUR_SIGN_KEY";

    std::map<std::string, std::string> fields;
    fields["app"] = "YOUR_APP_ID";
    fields["act"] = "ini";
    fields["kami"] = "ABC123XYZ789";
    fields["imei"] = "device_001";
    fields["user"] = "testuser";
    fields["pwd"] = "pass123";
    fields["t"] = std::to_string(std::time(nullptr));
    fields["s"] = build_sign(fields, sign_key);

    std::string body = http_post_form(api_url, fields);
    std::printf("%s\n", body.c_str());
    return 0;
}

# 1) 先按签名算法计算 s（见「签名算法」文档）
# 2) 用 form 提交（Content-Type: application/x-www-form-urlencoded）

curl -X POST "https://gnyanzheng.cn/api/app" \
  -H "Content-Type: application/x-www-form-urlencoded" \
  --data-urlencode "app=YOUR_APP_ID" \
  --data-urlencode "act=ini" \
  --data-urlencode "kami=ABC123XYZ789" \
  --data-urlencode "imei=device_001" \
  --data-urlencode "user=testuser" \
  --data-urlencode "pwd=pass123" \
  --data-urlencode "t=1720000000" \
  --data-urlencode "s=YOUR_MD5_SIGN_UPPER"

<?php
$apiUrl = 'http://your-domain.com/api.php?r=/app';
$appId = 'YOUR_APP_ID';
$signKey = 'YOUR_SIGN_KEY';

$params = [
    'app' => $appId,
    'act'  => 'ini',
    't' => time(),
];

ksort($params);
$signParts = [];
foreach ($params as $k => $v) {
    if ($k === 's' || $k === 'safe_code' || str_starts_with($k, '_')) continue;
    $signParts[] = $k . '=' . $v;
}
$signStr = implode('&', $signParts);
$params['s'] = md5($signStr . $signKey);

$ch = curl_init($apiUrl);
curl_setopt_array($ch, [
    CURLOPT_POST           => true,
    CURLOPT_POSTFIELDS     => http_build_query($params),
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_TIMEOUT        => 30,
]);

$response = curl_exec($ch);
curl_close($ch);

$result = json_decode($response, true);
if ($result['code'] === 1) {
    echo "操作成功" . PHP_EOL;
    print_r($result['data']);
} else {
    echo "操作失败: " . $result['msg'] . PHP_EOL;
}