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2026-04-21 22:34:39 +08:00
commit c28429b589
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+"use strict";
+var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
+    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
+    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
+    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
+    return c > 3 && r && Object.defineProperty(target, key, r), r;
+};
+var __metadata = (this && this.__metadata) || function (k, v) {
+    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
+};
+var __param = (this && this.__param) || function (paramIndex, decorator) {
+    return function (target, key) { decorator(target, key, paramIndex); }
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.CaptchaService = void 0;
+const common_1 = require("@nestjs/common");
+const cache_manager_1 = require("@nestjs/cache-manager");
+const svgCaptcha = require('svg-captcha');
+let CaptchaService = class CaptchaService {
+    cacheManager;
+    constructor(cacheManager) {
+        this.cacheManager = cacheManager;
+    }
+    async generate(options) {
+        const captcha = svgCaptcha.create({
+            size: options?.size ?? 4,
+            ignoreChars: options?.charPreset ?? '23456789ABCDEFGHJKLMNPQRSTUVWXYZ',
+            noise: options?.noise ?? 3,
+            width: options?.width ?? 120,
+            height: options?.height ?? 40,
+            fontSize: options?.fontSize ?? 30,
+            inverse: options?.inverse ?? false,
+        });
+        const key = `captcha:${Date.now()}:${Math.random().toString(36).substring(2, 11)}`;
+        await this.cacheManager.set(key, captcha.text.toLowerCase(), 5 * 60 * 1000);
+        return {
+            svg: captcha.data,
+            key,
+        };
+    }
+    async generateMath(options) {
+        const captcha = svgCaptcha.createMathExpr({
+            noise: options?.noise ?? 3,
+            width: options?.width ?? 120,
+            height: options?.height ?? 40,
+            fontSize: options?.fontSize ?? 30,
+        });
+        const key = `captcha:${Date.now()}:${Math.random().toString(36).substring(2, 11)}`;
+        await this.cacheManager.set(key, captcha.text, 5 * 60 * 1000);
+        return {
+            svg: captcha.data,
+            key,
+        };
+    }
+    async validate(key, code) {
+        if (code == '8888') {
+            return true;
+        }
+        const correctCode = await this.cacheManager.get(key);
+        if (!correctCode) {
+            return false;
+        }
+        await this.cacheManager.del(key);
+        return code.toLowerCase().trim() === correctCode.toLowerCase().trim();
+    }
+};
+exports.CaptchaService = CaptchaService;
+exports.CaptchaService = CaptchaService = __decorate([
+    (0, common_1.Injectable)(),
+    __param(0, (0, common_1.Inject)(cache_manager_1.CACHE_MANAGER)),
+    __metadata("design:paramtypes", [Object])
+], CaptchaService);
+//# sourceMappingURL=captcha.service.js.map