1 files changed, 140 insertions, 0 deletions
diff --git a/src/tools/otp-code-generator-and-validator/otp-code-generator-and-validator.vue b/src/tools/otp-code-generator-and-validator/otp-code-generator-and-validator.vue
new file mode 100644
index 0000000..3521c23
--- /dev/null
+++ b/src/tools/otp-code-generator-and-validator/otp-code-generator-and-validator.vue
@@ -0,0 +1,140 @@
+<template>
+  <div style="max-width: 350px">
+    <n-form-item label="Secret" v-bind="secretValidationAttrs">
+      <n-input v-model:value="secret" placeholder="Paste your TOTP secret...">
+        <template #suffix>
+          <n-tooltip trigger="hover">
+            <template #trigger>
+              <n-button quaternary circle @click="refreshSecret">
+                <n-icon :component="Refresh" />
+              </n-button>
+            </template>
+            Generate secret token
+          </n-tooltip>
+        </template>
+      </n-input>
+    </n-form-item>
+
+    <div>
+      <token-display :tokens="tokens" style="margin-top: 2px" />
+
+      <n-progress :percentage="(100 * interval) / 30" :color="theme.primaryColor" :show-indicator="false" />
+      <div style="text-align: center">Next in {{ String(Math.floor(30 - interval)).padStart(2, '0') }}s</div>
+    </div>
+    <n-space justify="center" vertical align="center" style="margin-top: 10px">
+      <n-image :src="qrcode"></n-image>
+      <n-button secondary tag="a" :href="keyUri" target="_blank">Open Key URI in new tab</n-button>
+    </n-space>
+  </div>
+  <div style="max-width: 350px">
+    <n-form-item label="Secret in hexadecimal">
+      <input-copyable :value="base32toHex(secret)" readonly placeholder="Secret in hex will be displayed here" />
+    </n-form-item>
+
+    <n-form-item label="Epoch">
+      <input-copyable
+        :value="Math.floor(now / 1000).toString()"
+        readonly
+        placeholder="Epoch in sec will be displayed here"
+      />
+    </n-form-item>
+    <n-form-item label="Iteration" :show-feedback="false">
+      <n-input-group>
+        <n-input-group-label style="width: 110px">Count:</n-input-group-label>
+        <input-copyable
+          :value="String(getCounterFromTime({ now, timeStep: 30 }))"
+          readonly
+          placeholder="Iteration count will be displayed here"
+        />
+      </n-input-group>
+    </n-form-item>
+
+    <n-form-item label="Iteration" :show-label="false" style="margin-top: 5px">
+      <n-input-group>
+        <n-input-group-label style="width: 110px">Padded hex:</n-input-group-label>
+        <input-copyable
+          :value="getCounterFromTime({ now, timeStep: 30 }).toString(16).padStart(16, '0')"
+          readonly
+          placeholder="Iteration count in hex will be displayed here"
+        />
+      </n-input-group>
+    </n-form-item>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed, ref, watch } from 'vue';
+import { Refresh } from '@vicons/tabler';
+import { useTimestamp, whenever } from '@vueuse/core';
+import { useThemeVars } from 'naive-ui';
+import { useStyleStore } from '@/stores/style.store';
+import InputCopyable from '@/components/InputCopyable.vue';
+import { useValidation } from '@/composable/validation';
+import { generateTOTP, buildKeyUri, generateSecret, base32toHex, getCounterFromTime } from './otp.service';
+import { useQRCode } from '../qr-code-generator/useQRCode';
+import TokenDisplay from './token-display.vue';
+
+const now = useTimestamp();
+const interval = computed(() => (now.value / 1000) % 30);
+const theme = useThemeVars();
+const styleStore = useStyleStore();
+const secret = ref(generateSecret());
+const tokens = ref(buildTokens());
+const keyUri = computed(() => buildKeyUri({ secret: secret.value }));
+
+const { qrcode } = useQRCode({
+  text: keyUri,
+  color: { background: '#00000000', foreground: computed(() => (styleStore.isDarkTheme ? '#ffffff' : '#000000')) },
+  options: { width: 210 },
+});
+
+const { attrs: secretValidationAttrs } = useValidation({
+  source: secret,
+  rules: [
+    {
+      message: 'Secret should be a base32 string',
+      validator: (value) => value.match(/^[A-Z234567]+$/),
+    },
+    {
+      message: 'Please set a secret',
+      validator: (value) => value !== '',
+    },
+  ],
+});
+
+// watch + whenever to prevent token to be refresh every raf
+watch([secret], refreshToken);
+whenever(() => Math.floor(interval.value) === 0, refreshToken);
+
+function refreshSecret() {
+  secret.value = generateSecret();
+}
+
+function refreshToken() {
+  tokens.value = buildTokens();
+}
+
+function buildTokens() {
+  return {
+    previous: generateTOTP({ key: secret.value, now: now.value - 30000 }),
+    current: generateTOTP({ key: secret.value, now: now.value }),
+    next: generateTOTP({ key: secret.value, now: now.value + 30000 }),
+  };
+}
+</script>
+
+<style lang="less" scoped>
+.n-progress {
+  margin-top: 10px;
+  ::v-deep(.n-progress-graph-line-fill) {
+    transition-duration: 0.05s !important;
+  }
+}
+
+.token {
+  text-align: center;
+  &.token-current {
+    font-size: 20px;
+  }
+}
+</style>