ConfigurableSelfRegHandler インターフェース

1global class AutocreatedConfigSelfReg implements Auth.ConfigurableSelfRegHandler {
2
3    private final Long CURRENT_TIME = Datetime.now().getTime();
4    private final String[] UPPERCASE_CHARS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.split('');
5    private final String[] LOWERCASE_CHARS = 'abcdefghijklmnopqrstuvwxyz'.split('');
6    private final String[] NUMBER_CHARS = '1234567890'.split('');
7    private final String[] SPECIAL_CHARS = '!#$%-_=+<>'.split('');
8
9    // This method is called once after verification (if any was configured).
10    // This method should create a user and insert it.
11    // Password can be null.
12    // Return null or throw an exception to fail creation.
13    global Id createUser(Id accountId, Id profileId, Map<SObjectField, String> registrationAttributes, String password) {
14        User u = new User();
15        u.ProfileId = profileId;
16        for (SObjectField field : registrationAttributes.keySet()) {
17            String value = registrationAttributes.get(field);
18            u.put(field, value);
19        }
20
21        u = handleUnsetRequiredFields(u);
22        generateContact(u, accountId);
23        if (String.isBlank(password)) {
24            password = generateRandomPassword();
25        }
26        Site.validatePassword(u, password, password);
27        if (u.contactId == null) {
28            return Site.createExternalUser(u, accountId, password);
29        }
30        u.languagelocalekey = UserInfo.getLocale();
31        u.localesidkey = UserInfo.getLocale();
32        u.emailEncodingKey = 'UTF-8';
33        u.timeZoneSidKey = UserInfo.getTimezone().getID();
34        insert u;
35        System.setPassword(u.Id, password);
36        return u.id;
37    }
38    // Method to autogenerate a password if one isn't passed in.
39    // By setting a password for a user, we won't send a 
40    // welcome email to set the password.
41    private String generateRandomPassword() {
42        String[] characters = new List<String>(UPPERCASE_CHARS);
43        characters.addAll(LOWERCASE_CHARS);
44        characters.addAll(NUMBER_CHARS);
45        characters.addAll(SPECIAL_CHARS);
46        String newPassword = '';
47        Boolean needsUpper = true, needsLower = true, needsNumber = true, needsSpecial = true;
48        while (newPassword.length() < 50) {
49            Integer randomInt = generateRandomInt(characters.size());
50            String c = characters[randomInt];
51            if (needsUpper && c.isAllUpperCase()) {
52                needsUpper = false;
53            } else if (needsLower && c.isAllLowerCase()) {
54                needsLower = false;
55            } else if (needsNumber && c.isNumeric()) {
56                needsNumber = false;
57            } else if (needsSpecial && !c.isAlphanumeric()) {
58                needsSpecial = false;
59            }
60            newPassword += c; 
61        }
62        newPassword = addMissingPasswordRequirements(newPassword, needsLower, needsUpper, needsNumber, needsSpecial);
63        return newPassword;
64    }
65
66    private String addMissingPasswordRequirements(String password, Boolean addLowerCase, Boolean addUpperCase, Boolean addNumber, Boolean addSpecial) {
67        if (addLowerCase) {
68            password += LOWERCASE_CHARS[generateRandomInt(LOWERCASE_CHARS.size())];
69        }
70        if (addUpperCase) {
71            password += UPPERCASE_CHARS[generateRandomInt(UPPERCASE_CHARS.size())];
72        }
73        if (addNumber) {
74            password += NUMBER_CHARS[generateRandomInt(NUMBER_CHARS.size())];
75        }
76        if (addSpecial) {
77            password += SPECIAL_CHARS[generateRandomInt(SPECIAL_CHARS.size())];
78        }
79        return password;
80    }
81   // Generates a random number from 0 up to, but not including, max.
82    private Integer generateRandomInt(Integer max) {
83        return Math.mod(Math.abs(Crypto.getRandomInteger()), max);
84    }
85
86    // Loops over required fields that were not passed in to 
87    // set to some default value.
88    private User handleUnsetRequiredFields(User u) {
89        if (String.isBlank(u.LastName)){
90            u.LastName = generateLastName();
91        }
92        if (String.isBlank(u.Username)) {
93            u.Username = generateUsername();
94        }
95        if (String.isBlank(u.Email)) {
96            u.Email = generateEmail();
97        }
98        if (String.isBlank(u.Alias)) {
99            u.Alias = generateAlias();
100        }
101        if (String.isBlank(u.CommunityNickname)) {
102            u.CommunityNickname = generateCommunityNickname();
103        }
104        return u;
105    }
106    // Method to construct a contact for a user.
107    private void generateContact(User u, Id accountId) {
108        // Add logic here if you want to build your own 
109        // contact for the use.
110    }
111   // Default implementation to try to provide uniqueness.
112    private String generateAlias() {
113        String timeString = String.valueOf(CURRENT_TIME);
114        return timeString.substring(timeString.length() - 8);
115    }
116    // Default implementation to try to provide uniqueness.
117    private String generateLastName() {
118        return 'ExternalUser' + CURRENT_TIME;
119    }
120    // Default implementation to try to provide uniqueness.
121    private String generateUsername() {
122        return 'externaluser' + CURRENT_TIME + '@company.com';
123    }
124    // Default implementation to try to provide uniqueness.
125    private String generateEmail() {
126        return 'externaluser' + CURRENT_TIME + '@company.com';
127    }
128    // Default implementation to try to provide uniqueness.
129    private String generateCommunityNickname() {
130        return 'ExternalUser' + CURRENT_TIME;
131    }
132}