extension-email-verification

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Original

English
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Translation

Chinese

Email — Verification

邮箱 — 验证

Email verification extension for Caffeine AI.
适用于Caffeine AI的邮箱验证扩展。

Overview

概述

This skill adds email address verification via a click-to-verify link. The
MixinEmailVerification
handles the verification callback;
verifiedEmails
tracks verified addresses.
该技能通过点击验证链接实现邮箱地址验证。
MixinEmailVerification
负责处理验证回调;
verifiedEmails
用于跟踪已验证的邮箱地址。

Backend

后端

This component is for sending an email to users with a verification link which the user can click to prove they own the email address.

此组件用于向用户发送包含验证链接的邮件,用户可点击链接证明其拥有该邮箱地址。

To check if an email address has been verified

检查邮箱地址是否已验证

Use the prefabricated module
mo:caffeineai-email-verification/verifiedEmails.mo
which cannot be modified.
mo
module {
  public type State = {
    var verifiedEmails : Set.Set<Text>;
  };

  public func new() : State {
    {
      var verifiedEmails = Set.empty<Text>();
    };
  };

  public func contains(state : State, email : Text) : Bool;

  public func iter(state : State) : Iter.Iter<Text>;

  public func size(state : State) : Nat;
};
To check whether an email is verified use the
contains
function. Do NOT try to track the email verification status independently by storing it against the user profile.
使用预制模块
mo:caffeineai-email-verification/verifiedEmails.mo
,该模块不可修改。
mo
module {
  public type State = {
    var verifiedEmails : Set.Set<Text>;
  };

  public func new() : State {
    {
      var verifiedEmails = Set.empty<Text>();
    };
  };

  public func contains(state : State, email : Text) : Bool;

  public func iter(state : State) : Iter.Iter<Text>;

  public func size(state : State) : Nat;
};
如需检查邮箱是否已验证,请使用
contains
函数。请勿尝试通过在用户档案中存储验证状态来独立跟踪邮箱验证情况。

To handle the verification link

处理验证链接

Use the prefabricated module
mo:caffeineai-email-verification/verificationMixin.mo
which cannot be modified.
The MixinEmailVerification handles calls to the verification link to verify an email address.
mo
import MixinEmailVerification "mo:caffeineai-email-verification/verificationMixin";
使用预制模块
mo:caffeineai-email-verification/verificationMixin.mo
,该模块不可修改。
MixinEmailVerification负责处理验证链接的调用,以完成邮箱地址验证。
mo
import MixinEmailVerification "mo:caffeineai-email-verification/verificationMixin";

For sending users a verification email

向用户发送验证邮件

  • This extension depends on the extension-email for sending emails.
  • Use the sendVerificationEmail function.
  • It returns a SendResult which is #ok if the email is sent successfully otherwise #err(error) with the error text.
  • Each recipient receives an individual email with a specific verification link for them
  • The htmlBody MUST contain the placeholder text {{VERIFICATION_URL}}
mo
module {
  public type SendResult = {
    #ok;
    #err : Text;
  };

  public func sendVerificationEmail(
    fromUsername : Text,
    recipients : [Text],
    subject : Text,
    htmlBody : Text,
  ) : async SendResult;
};
  • 此扩展依赖于extension-email来发送邮件。
  • 使用
    sendVerificationEmail
    函数。
  • 该函数返回
    SendResult
    :若邮件发送成功则返回
    #ok
    ,否则返回
    #err(error)
    并附带错误文本。
  • 每位收件人会收到包含专属验证链接的独立邮件。
  • HTML邮件正文必须包含占位符文本
    {{VERIFICATION_URL}}
mo
module {
  public type SendResult = {
    #ok;
    #err : Text;
  };

  public func sendVerificationEmail(
    fromUsername : Text,
    recipients : [Text],
    subject : Text,
    htmlBody : Text,
  ) : async SendResult;
};

Example usage with endpoints for registering a user and for checking whether a user is verified.

用户注册与验证状态检查的端点示例

motoko
import Map "mo:core/Map";
import Runtime "mo:core/Runtime";
import Principal "mo:core/Principal";
import Text "mo:core/Text";
import EmailClient "mo:caffeineai-email/emailClient";
import MixinEmailVerification "mo:caffeineai-email-verification/verificationMixin";
import VerifiedEmails "mo:caffeineai-email-verification/verifiedEmails";

actor {
  // Stores which emails are verified
  let verifiedEmails = VerifiedEmails.new();

  // User profiles storage
  let users = Map.empty<Principal, User>();

  // Email to principal mapping for uniqueness check
  let emailToPrincipal = Map.empty<Text, Principal>();

  // Handles the verification link and updates the verifiedEmails store
  include MixinEmailVerification(verifiedEmails);

  type User = {
    name : Text;
    email : Text;
  };

  public shared ({ caller }) func registerUser(email : Text, name : Text) : async () {
    if (users.containsKey(caller)) {
      Runtime.trap("User already registered");
    };
    if (emailToPrincipal.containsKey(email)) {
      Runtime.trap("Email already registered");
    };

    let user : User = {
      name;
      email;
    };
    users.add(caller, user);
    emailToPrincipal.add(email, caller);
    let result = await EmailClient.sendVerificationEmail(
      "no-reply",
      [email],
      "Welcome to Our Service",
      "Hello " # name # ",<br><br>Thank you for registering with our service. Please <a href=\"{{VERIFICATION_URL}}\">click here</a> to verify your email address<br><br>Best regards,<br>The Team",
    );

    switch (result) {
      case (#ok) {};
      case (#err(error)) {
        Runtime.trap("Couldn't send verification email: " # error);
      };
    };
  };

  public shared ({ caller }) func isEmailVerified() : async Bool {
    switch (users.get(caller)) {
      case (null) {
        Runtime.trap("User not registered");
      };
      case (?user) {
        VerifiedEmails.contains(verifiedEmails, user.email);
      };
    };
  };
};
motoko
import Map "mo:core/Map";
import Runtime "mo:core/Runtime";
import Principal "mo:core/Principal";
import Text "mo:core/Text";
import EmailClient "mo:caffeineai-email/emailClient";
import MixinEmailVerification "mo:caffeineai-email-verification/verificationMixin";
import VerifiedEmails "mo:caffeineai-email-verification/verifiedEmails";

actor {
  // 存储已验证的邮箱地址
  let verifiedEmails = VerifiedEmails.new();

  // 用户档案存储
  let users = Map.empty<Principal, User>();

  // 邮箱到主体的映射,用于唯一性检查
  let emailToPrincipal = Map.empty<Text, Principal>();

  // 处理验证链接并更新verifiedEmails存储
  include MixinEmailVerification(verifiedEmails);

  type User = {
    name : Text;
    email : Text;
  };

  public shared ({ caller }) func registerUser(email : Text, name : Text) : async () {
    if (users.containsKey(caller)) {
      Runtime.trap("User already registered");
    };
    if (emailToPrincipal.containsKey(email)) {
      Runtime.trap("Email already registered");
    };

    let user : User = {
      name;
      email;
    };
    users.add(caller, user);
    emailToPrincipal.add(email, caller);
    let result = await EmailClient.sendVerificationEmail(
      "no-reply",
      [email],
      "Welcome to Our Service",
      "Hello " # name # ",<br><br>Thank you for registering with our service. Please <a href=\"{{VERIFICATION_URL}}\">click here</a> to verify your email address<br><br>Best regards,<br>The Team",
    );

    switch (result) {
      case (#ok) {};
      case (#err(error)) {
        Runtime.trap("Couldn't send verification email: " # error);
      };
    };
  };

  public shared ({ caller }) func isEmailVerified() : async Bool {
    switch (users.get(caller)) {
      case (null) {
        Runtime.trap("User not registered");
      };
      case (?user) {
        VerifiedEmails.contains(verifiedEmails, user.email);
      };
    };
  };
};

Frontend

前端

If there is a UI for the admin to enter the content of a verification email then indicate that the placeholder text {{VERIFICATION_URL}} must be present in the email body.
若存在供管理员输入验证邮件内容的UI,则需提示邮件正文中必须包含占位符文本
{{VERIFICATION_URL}}