From d9a23b87272b663ccd5f205710fb53566607f531 Mon Sep 17 00:00:00 2001
From: Vitalii Shpital <46756926+VitaliiShpital@users.noreply.github.com>
Date: Fri, 29 Nov 2019 14:52:21 +0200
Subject: [PATCH] web/satellite: password strength implemented on register page
 (#3669)

---
 .../src/components/common/HeaderlessInput.vue |  10 +
 .../src/views/register/RegisterArea.vue       |  14 +-
 .../passwordStrength/PasswordStrength.vue     | 260 ++++++++++++++++++
 .../src/views/register/registerArea.html      |  16 +-
 .../static/images/register/StrengthVector.svg |   3 +
 5 files changed, 291 insertions(+), 12 deletions(-)
 create mode 100644 web/satellite/src/views/register/passwordStrength/PasswordStrength.vue
 create mode 100644 web/satellite/static/images/register/StrengthVector.svg

diff --git a/web/satellite/src/components/common/HeaderlessInput.vue b/web/satellite/src/components/common/HeaderlessInput.vue
index 389173c6b..447080a57 100644
--- a/web/satellite/src/components/common/HeaderlessInput.vue
+++ b/web/satellite/src/components/common/HeaderlessInput.vue
@@ -17,6 +17,8 @@
             :placeholder="placeholder"
             :type="type"
             :style="style.inputStyle"
+            @focus="showPasswordStrength"
+            @blur="hidePasswordStrength"
         />
         <!--2 conditions of eye image (crossed or not) -->
         <PasswordHiddenIcon
@@ -86,6 +88,14 @@ export default class HeaderlessInput extends Vue {
         this.value = value;
     }
 
+    public showPasswordStrength(): void {
+        this.$emit('showPasswordStrength');
+    }
+
+    public hidePasswordStrength(): void {
+        this.$emit('hidePasswordStrength');
+    }
+
     // triggers on input
     public onInput({ target }): void {
         if (target.value.length > this.maxSymbols) {
diff --git a/web/satellite/src/views/register/RegisterArea.vue b/web/satellite/src/views/register/RegisterArea.vue
index 4af61ec57..e2914d94c 100644
--- a/web/satellite/src/views/register/RegisterArea.vue
+++ b/web/satellite/src/views/register/RegisterArea.vue
@@ -8,7 +8,6 @@ import { Component, Vue } from 'vue-property-decorator';
 
 import HeaderlessInput from '@/components/common/HeaderlessInput.vue';
 import RegistrationSuccessPopup from '@/components/common/RegistrationSuccessPopup.vue';
-import VInfo from '@/components/common/VInfo.vue';
 
 import AuthIcon from '@/../static/images/AuthImage.svg';
 import InfoIcon from '@/../static/images/info.svg';
@@ -21,15 +20,16 @@ import { APP_STATE_ACTIONS } from '@/utils/constants/actionNames';
 import { LOADING_CLASSES } from '@/utils/constants/classConstants';
 import { LocalData } from '@/utils/localData';
 import { validateEmail, validatePassword } from '@/utils/validation';
+import PasswordStrength from '@/views/register/passwordStrength/PasswordStrength.vue';
 
 @Component({
     components: {
         HeaderlessInput,
         RegistrationSuccessPopup,
-        VInfo,
         AuthIcon,
         LogoIcon,
         InfoIcon,
+        PasswordStrength,
     },
 })
 export default class RegisterArea extends Vue {
@@ -55,6 +55,8 @@ export default class RegisterArea extends Vue {
 
     private readonly auth: AuthHttpApi = new AuthHttpApi();
 
+    public isPasswordStrengthShown: boolean = false;
+
     async mounted(): Promise<void> {
         if (this.$route.query.token) {
             this.secret = this.$route.query.token.toString();
@@ -77,6 +79,14 @@ export default class RegisterArea extends Vue {
         }
     }
 
+    public showPasswordStrength(): void {
+        this.isPasswordStrengthShown = true;
+    }
+
+    public hidePasswordStrength(): void {
+        this.isPasswordStrengthShown = false;
+    }
+
     public async onCreateClick(): Promise<void> {
         if (this.isLoading) {
             return;
diff --git a/web/satellite/src/views/register/passwordStrength/PasswordStrength.vue b/web/satellite/src/views/register/passwordStrength/PasswordStrength.vue
new file mode 100644
index 000000000..778cfe9ca
--- /dev/null
+++ b/web/satellite/src/views/register/passwordStrength/PasswordStrength.vue
@@ -0,0 +1,260 @@
+// Copyright (C) 2019 Storj Labs, Inc.
+// See LICENSE for copying information.
+
+<template>
+    <div class="password-strength-container" v-if="isShown">
+        <div class="password-strength-container__header">
+            <p class="password-strength-container__header__title">Password strength</p>
+            <p class="password-strength-container__header__strength-status" :style="strengthLabelColor">{{passwordStrength}}</p>
+        </div>
+        <div class="password-strength-container__bar">
+            <div class="password-strength-container__bar__fill" :style="barFillStyle"></div>
+        </div>
+        <p class="password-strength-container__subtitle">Your password should contain:</p>
+        <div class="password-strength-container__rule-area">
+            <div class="password-strength-container__rule-area__checkbox" :class="{ checked: isPasswordLongEnough }">
+                <VectorIcon/>
+            </div>
+            <p class="password-strength-container__rule-area__rule">6 or more Latin characters</p>
+        </div>
+        <p class="password-strength-container__subtitle">Its nice to have: </p>
+        <div class="password-strength-container__rule-area">
+            <div class="password-strength-container__rule-area__checkbox" :class="{ checked: hasLowerAndUpperCaseLetters }">
+                <VectorIcon/>
+            </div>
+            <p class="password-strength-container__rule-area__rule">Upper & lowercase letters</p>
+        </div>
+        <div class="password-strength-container__rule-area">
+            <div class="password-strength-container__rule-area__checkbox" :class="{ checked: hasSpecialCharacter }">
+                <VectorIcon/>
+            </div>
+            <p class="password-strength-container__rule-area__rule">At least one special character</p>
+        </div>
+        <p class="password-strength-container__subtitle">Avoid using a password that you use on other websities or that might be easily guessed by someone else.</p>
+    </div>
+</template>
+
+<script lang="ts">
+import { Component, Prop, Vue } from 'vue-property-decorator';
+
+import VectorIcon from '@/../static/images/register/StrengthVector.svg';
+
+/**
+ * BarFillStyle class holds info for BarFillStyle entity.
+ */
+class BarFillStyle {
+    'background-color': string;
+    width: string;
+
+    public constructor(backgroundColor: string, width: string) {
+        this['background-color'] = backgroundColor;
+        this.width = width;
+    }
+}
+
+/**
+ * StrengthLabelColor class holds info for StrengthLabelColor entity.
+ */
+class StrengthLabelColor {
+    color: string;
+
+    public constructor(color: string) {
+        this.color = color;
+    }
+}
+
+@Component({
+    components: {
+        VectorIcon,
+    },
+})
+export default class PasswordStrength extends Vue {
+    @Prop({default: ''})
+    private readonly passwordString: string;
+    @Prop({default: false})
+    private readonly isShown: boolean;
+
+    private MINIMAL_PASSWORD_LENGTH: number = 6;
+
+    public get isPasswordLongEnough(): boolean {
+        return this.passwordString.length >= this.MINIMAL_PASSWORD_LENGTH;
+    }
+
+    public get passwordStrength(): string {
+        if (this.passwordString.length < this.MINIMAL_PASSWORD_LENGTH) {
+            return `Use ${this.MINIMAL_PASSWORD_LENGTH} or more characters`;
+        }
+
+        const score = this.scorePassword();
+        if (score > 90) {
+            return 'Very Strong';
+        }
+        if (score > 70) {
+            return 'Strong';
+        }
+        if (score > 45) {
+            return 'Good';
+        }
+
+        return 'Weak';
+    }
+
+    public get barFillStyle(): BarFillStyle {
+        return new BarFillStyle(this.passwordStrengthColor(this.passwordStrength), this.barWidth(this.passwordStrength));
+    }
+
+    public get strengthLabelColor(): StrengthLabelColor {
+        return new StrengthLabelColor(this.passwordStrengthColor(this.passwordStrength));
+    }
+
+    public get hasLowerAndUpperCaseLetters(): boolean {
+        return /[a-z]/.test(this.passwordString) && /[A-Z]/.test(this.passwordString);
+    }
+
+    public get hasSpecialCharacter(): boolean {
+        return /\W/.test(this.passwordString);
+    }
+
+    private scorePassword(): number {
+        const password: string = this.passwordString;
+        let score: number = 0;
+
+        const letters: number[] = [];
+        for (let i = 0; i < password.length; i++) {
+            letters[password[i]] = (letters[password[i]] || 0) + 1;
+            score += 5 / letters[password[i]];
+        }
+
+        const variations: boolean[] = [
+            /\d/.test(password),
+            /[a-z]/.test(password),
+            /[A-Z]/.test(password),
+            /\W/.test(password),
+        ];
+
+        let variationCount: number = 0;
+        variations.forEach((check) => {
+            variationCount += check ? 1 : 0;
+        });
+
+        score += variationCount * 10;
+
+        return score;
+    }
+
+    private passwordStrengthColor(strength: string): string {
+        switch (strength) {
+            case 'Good':
+                return '#ffff00';
+            case 'Strong':
+                return '#bfff00';
+            case 'Very Strong':
+                return '#00ff40';
+        }
+
+        return '#e16c58';
+    }
+
+    private barWidth(strength: string): string {
+        switch (strength) {
+            case 'Weak':
+                return '81px';
+            case 'Good':
+                return '162px';
+            case 'Strong':
+                return '243px';
+            case 'Very Strong':
+                return '325px';
+        }
+
+        return '0px';
+    }
+}
+</script>
+
+<style scoped lang="scss">
+    p {
+        margin: 0;
+    }
+
+    .password-strength-container {
+        position: absolute;
+        top: 95px;
+        right: -3px;
+        padding: 25px 20px;
+        opacity: 0.97;
+        border: 1px solid rgba(193, 193, 193, 0.3);
+        box-shadow: 0 4px 20px rgba(204, 208, 214, 0.25);
+        border-radius: 6px;
+        background-color: #fff;
+        height: 220px;
+        width: 325px;
+        z-index: 100;
+        font-family: 'font_medium', sans-serif;
+
+        &__header {
+            display: flex;
+            align-items: center;
+            justify-content: space-between;
+            font-size: 14px;
+            line-height: 19px;
+
+            &__title {
+                color: #384b65;
+            }
+        }
+
+        &__bar {
+            height: 3px;
+            width: 100%;
+            border-radius: 17px;
+            background-color: #afb7c1;
+            margin: 5px 0 0 0;
+            position: relative;
+
+            &__fill {
+                height: 100%;
+                position: absolute;
+                left: 0;
+                top: 0;
+                border-radius: 17px;
+            }
+        }
+
+        &__subtitle {
+            font-size: 12px;
+            line-height: 16px;
+            color: #afb7c1;
+            margin: 10px 0 0 0;
+        }
+
+        &__rule-area {
+            display: flex;
+            align-items: center;
+            justify-content: flex-start;
+            margin: 10px 0 0 0;
+
+            &__checkbox {
+                height: 20px;
+                width: 20px;
+                border-radius: 10px;
+                border: 1.5px solid #737791;
+                display: flex;
+                align-items: center;
+                justify-content: center;
+            }
+
+            &__rule {
+                font-size: 12px;
+                line-height: 16px;
+                color: #384b65;
+                margin: 0 0 0 5px;
+            }
+        }
+    }
+
+    .checked {
+        background-color: #27ae60;
+        border-color: #27ae60;
+    }
+</style>
diff --git a/web/satellite/src/views/register/registerArea.html b/web/satellite/src/views/register/registerArea.html
index 9a1064b95..aaefbe9f2 100644
--- a/web/satellite/src/views/register/registerArea.html
+++ b/web/satellite/src/views/register/registerArea.html
@@ -53,12 +53,13 @@
                         width="100%"
                         height="46px"
                         is-password="true"
+                        @showPasswordStrength="showPasswordStrength"
+                        @hidePasswordStrength="hidePasswordStrength"
+                    />
+                    <PasswordStrength
+                        :password-string="password"
+                        :is-shown="isPasswordStrengthShown"
                     />
-                    <VInfo
-                        class="register-input__info-button"
-                        bold-text="Use 6 or more characters with a mix of letters, numbers & symbols" >
-                        <InfoIcon/>
-                    </VInfo>
                 </div>
                 <div class="register-input">
                     <HeaderlessInput
@@ -71,11 +72,6 @@
                         height="46px"
                         is-password="true"
                     />
-                    <VInfo
-                        class="register-input__info-button"
-                        bold-text="Use 6 or more characters with a mix of letters, numbers & symbols">
-                        <InfoIcon/>
-                    </VInfo>
                 </div>
                 <div class="register-area__submit-container">
                     <div class="register-area__submit-container__terms-area">
diff --git a/web/satellite/static/images/register/StrengthVector.svg b/web/satellite/static/images/register/StrengthVector.svg
new file mode 100644
index 000000000..cb64eb8e9
--- /dev/null
+++ b/web/satellite/static/images/register/StrengthVector.svg
@@ -0,0 +1,3 @@
+<svg width="12" height="10" viewBox="0 0 12 10" fill="none" xmlns="http://www.w3.org/2000/svg">
+    <path d="M11.0004 1.4043L4.00039 8.41129L1.90039 6.31129" stroke="white" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>