LibreTranslate/app/templates/index.html

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>LibreTranslate - Free and Open Source Machine Translation API</title>
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<link rel="shortcut icon" href="{{ url_for('static', filename='favicon.ico') }}">
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<meta name="description" content="Free and Open Source Machine Translation API. 100% self-hosted, no limits, no ties to proprietary services. Run your own API server in just a few minutes.">
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<meta name="keywords" content="translation,api">
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<meta property="og:title" content="LibreTranslate - Free and Open Source Machine Translation API" />
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<meta property="og:type" content="website" />
<meta property="og:url" content="https://libretranslate.com" />
<meta property="og:image" content="https://user-images.githubusercontent.com/1951843/102724116-32a6df00-42db-11eb-8cc0-129ab39cdfb5.png" />
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<meta property="og:description" name="description" class="swiftype" content="Free and Open Source Machine Translation API. 100% self-hosted, no limits, no ties to proprietary services. Run your own API server in just a few minutes."/>
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<script src="{{ url_for('static', filename='js/vue@2.js') }}"></script>
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<!-- Compiled and minified CSS -->
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<link rel="stylesheet" href="{{ url_for('static', filename='css/materialize.min.css') }}">
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<link rel="stylesheet" href="{{ url_for('static', filename='css/material-icons.css') }}" />
<link rel="stylesheet" href="{{ url_for('static', filename='css/prism.min.css') }}" />
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<link rel="stylesheet" href="{{ url_for('static', filename='css/main.css') }}?t=2" />
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{% if gaId %}
<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id={{ gaId }}"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', '{{ gaId }}');
</script>
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{% endif %}
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</head>
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<body>
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<header>
<nav class="blue lighten-1" role="navigation">
<div class="nav-wrapper container">
<a id="logo-container" href="/" class="brand-logo">
<img src="{{ url_for('static', filename='icon.svg') }}" class="logo"> LibreTranslate
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</a>
<ul class="right hide-on-med-and-down">
<li><a href="/docs">API Docs</a></li>
<li><a href="https://github.com/LibreTranslate/LibreTranslate" rel="noopener noreferrer">GitHub</a></li>
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{% if api_keys %}
<li><a href="javascript:setApiKey()" title="Set API Key"><i class="material-icons">vpn_key</i></a></li>
{% endif %}
</ul>
<ul id="nav-mobile" class="sidenav">
<li><a href="/docs">API Docs</a></li>
<li><a href="https://github.com/LibreTranslate/LibreTranslate" rel="noopener noreferrer">GitHub</a></li>
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{% if api_keys %}
<li><a href="javascript:setApiKey()" title="Set API Key"><i class="material-icons">vpn_key</i></a></li>
{% endif %}
</ul>
<a href="#" data-target="nav-mobile" class="sidenav-trigger"><i class="material-icons">menu</i></a>
</div>
</nav>
</header>
<main id="app">
<div class="section no-pad-bot center" v-if="loading">
<div class="container">
<div class="row">
<div class="preloader-wrapper active">
<div class="spinner-layer spinner-blue-only">
<div class="circle-clipper left">
<div class="circle"></div>
</div><div class="gap-patch">
<div class="circle"></div>
</div><div class="circle-clipper right">
<div class="circle"></div>
</div>
</div>
</div>
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</div>
</div>
</div>
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<div v-else-if="error">
<div class="section no-pad-bot">
<div class="container">
<div class="row">
<div class="col s12 m7">
<div class="card horizontal">
<div class="card-stacked">
<div class="card-content">
<i class="material-icons">warning</i><p> [[ error ]]</p>
</div>
<div class="card-action">
<a href="#" @click="dismissError">Dismiss</a>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
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<div v-else>
<div class="section no-pad-bot">
<div class="container">
<div class="row">
<h3 class="header center">Translation API</h3>
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<form class="col s12">
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<div class="row mb-0">
<div class="col s6 language-select">
<span>Translate from</span>
<select class="browser-default" v-model="sourceLang" ref="sourceLangDropdown" @change="handleInput">
<template v-for="option in langs">
<option :value="option.code">[[ option.name ]]</option>
</template>
</select>
</div>
<div class="col s6 language-select">
<a href="javascript:void(0)" @click="swapLangs" class="btn-switch-language">
<i class="material-icons">swap_horiz</i>
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</a>
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<span>Translate into</span>
<select class="browser-default" v-model="targetLang" ref="targetLangDropdown" @change="handleInput">
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<template v-for="option in langs">
<option v-if="option.code !== 'auto'" :value="option.code">[[ option.name ]]</option>
</template>
</select>
</div>
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</div>
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<div class="row">
<div class="input-field textarea-container col s6">
<label for="textarea1" class="sr-only">
Text to translate
</label>
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<textarea id="textarea1" v-model="inputText" @input="handleInput" ref="inputTextarea" dir="auto"></textarea>
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<button class="btn-delete-text" title="Delete text" @click="deleteText">
<i class="material-icons">close</i>
</button>
<div class="characters-limit-container" v-if="charactersLimit !== -1">
<label>[[ inputText.length ]] / [[ charactersLimit ]]</label>
</div>
</div>
<div class="input-field textarea-container col s6">
<label for="textarea2" class="sr-only">
Translated text
</label>
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<textarea id="textarea2" v-model="translatedText" ref="translatedTextarea" dir="auto" readonly></textarea>
<button class="btn-copy-translated" @click="copyText">
<span>[[ copyTextLabel ]]</span> <i class="material-icons">content_copy</i>
</button>
<div class="position-relative">
<div class="progress translate" v-if="loadingTranslation">
<div class="indeterminate"></div>
</div>
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</div>
</div>
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</div>
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</form>
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</div>
</div>
</div>
<div class="section no-pad-bot">
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<div class="container">
<div class="row center">
<div class="col s12 m12">
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<div class="row center">
<div class="col s12 m12 l6 left-align">
<p class="mb-0">Request</p>
<pre class="code mt-0"><code class="language-javascript" v-html="$options.filters.highlight(requestCode)">
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</code></pre>
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</div>
<div class="col s12 m12 l6 left-align">
<p class="mb-0">Response</p>
<pre class="code mt-0"><code class="language-javascript" v-html="$options.filters.highlight(output)">
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</code></pre>
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</div>
</div>
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</div>
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</div>
</div>
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</div>
{% if web_version %}
<div class="section no-pad-bot">
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<div class="container">
<div class="row center">
<div class="col s12 m12">
<h3 class="header">Open Source Machine Translation</h3>
<h4 class="header">100% Self-Hosted. No Limits. No Ties to Proprietary Services.</h4>
<br/><a class="waves-effect waves-light btn btn-large" href="https://github.com/LibreTranslate/LibreTranslate" rel="noopener noreferrer"><i class="material-icons left">cloud_download</i> Download</a>
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<br/><br/><br/>
</div>
</div>
</div>
</div>
{% endif %}
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</div>
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</main>
<footer class="page-footer blue darken-3">
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<div class="container">
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<div class="row">
<div class="col l12 s12">
<h5 class="white-text">LibreTranslate</h5>
<p class="grey-text text-lighten-4">Free and Open Source Machine Translation API</p>
<p><a class="grey-text text-lighten-4" href="https://www.gnu.org/licenses/agpl-3.0.en.html" rel="noopener noreferrer">License: AGPLv3</a></p>
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<p><a class="grey-text text-lighten-4" href="/javascript-licenses" rel="jslicense">JavaScript license information</a></p>
{% if web_version %}
<p>
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This public API should be used for testing, personal or infrequent use. If you're going to run an application in production, please <a href="https://github.com/LibreTranslate/LibreTranslate" class="grey-text text-lighten-4" style="text-decoration: underline;" rel="noopener noreferrer">host your own server</a> or <a class="grey-text text-lighten-4" href="https://github.com/LibreTranslate/LibreTranslate#mirrors" style="text-decoration: underline;" rel="noopener noreferrer">get an API key</a>.
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</p>
{% endif %}
</div>
</div>
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</div>
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<div class="footer-copyright center">
<p>
Made with ❤ by <a class="grey-text text-lighten-3" href="https://github.com/LibreTranslate/LibreTranslate/graphs/contributors" rel="noopener noreferrer">LibreTranslate Contributors</a> and powered by <a class="grey-text text-lighten-3" href="https://github.com/argosopentech/argos-translate/" rel="noopener noreferrer">Argos Translate</a>
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</p>
</div>
</footer>
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<script src="{{ url_for('static', filename='js/materialize.min.js') }}"></script>
<script>
// @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPL-3.0
window.Prism = window.Prism || {};
window.Prism.manual = true;
// @license-end
</script>
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<script src="{{ url_for('static', filename='js/prism.min.js') }}"></script>
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<script>
// @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPL-3.0
// API host/endpoint
var BaseUrl = window.location.protocol + "//" + window.location.host;
document.addEventListener('DOMContentLoaded', function(){
var sidenavElems = document.querySelectorAll('.sidenav');
var sidenavInstances = M.Sidenav.init(sidenavElems);
var app = new Vue({
el: '#app',
delimiters: ['[[',']]'],
data: {
BaseUrl: BaseUrl,
loading: true,
error: "",
langs: [],
settings: {},
sourceLang: "",
targetLang: "",
loadingTranslation: false,
inputText: "",
inputTextareaHeight: 250,
translatedText: "",
output: "",
charactersLimit: -1,
copyTextLabel: "Copy text"
},
mounted: function(){
var self = this;
var requestSettings = new XMLHttpRequest();
requestSettings.open('GET', BaseUrl + '/frontend/settings', true);
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requestSettings.onload = function() {
if (this.status >= 200 && this.status < 400) {
// Success!
self.settings = JSON.parse(this.response);
self.sourceLang = self.settings.language.source.code;
self.targetLang = self.settings.language.target.code;
self.charactersLimit = self.settings.charLimit;
}else {
self.error = "Cannot load /frontend/settings";
self.loading = false;
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}
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};
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requestSettings.onerror = function() {
self.error = "Error while calling /frontend/settings";
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self.loading = false;
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};
requestSettings.send();
var requestLanguages = new XMLHttpRequest();
requestLanguages.open('GET', BaseUrl + '/languages', true);
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requestLanguages.onload = function() {
if (this.status >= 200 && this.status < 400) {
// Success!
self.langs = JSON.parse(this.response);
self.langs.push({ name: 'Auto Detect (Experimental)', code: 'auto' })
if (self.langs.length === 0){
self.loading = false;
self.error = "No languages available. Did you install the models correctly?"
return;
}
self.loading = false;
} else {
self.error = "Cannot load /languages";
self.loading = false;
}
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};
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requestLanguages.onerror = function() {
self.error = "Error while calling /languages";
self.loading = false;
};
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requestLanguages.send();
},
updated: function(){
M.FormSelect.init(this.$refs.sourceLangDropdown);
M.FormSelect.init(this.$refs.targetLangDropdown);
if (this.inputText === ""){
this.$refs.inputTextarea.style.height = this.inputTextareaHeight + "px";
this.$refs.translatedTextarea.style.height = this.inputTextareaHeight + "px";
}else{
this.$refs.inputTextarea.style.height = this.$refs.translatedTextarea.style.height = "1px";
this.$refs.inputTextarea.style.height = Math.max(this.inputTextareaHeight, this.$refs.inputTextarea.scrollHeight + 32) + "px";
this.$refs.translatedTextarea.style.height = Math.max(this.inputTextareaHeight, this.$refs.translatedTextarea.scrollHeight + 32) + "px";
}
if (this.charactersLimit !== -1 && this.inputText.length >= this.charactersLimit){
this.inputText = this.inputText.substring(0, this.charactersLimit);
}
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// Update "selected" attribute (to overcome a vue.js limitation)
// but properly display checkmarks on supported browsers.
// Also change the <select> width value depending on the <option> length
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for (var i = 0; i < this.$refs.sourceLangDropdown.children.length; i++){
var el = this.$refs.sourceLangDropdown.children[i];
if (el.value === this.sourceLang){
el.setAttribute('selected', '');
this.$refs.sourceLangDropdown.style.width = getTextWidth(el.text) + 24 + 'px';
}else{
el.removeAttribute('selected');
}
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}
for (var i = 0; i < this.$refs.targetLangDropdown.children.length; i++){
var el = this.$refs.targetLangDropdown.children[i];
if (el.value === this.targetLang){
el.setAttribute('selected', '');
this.$refs.targetLangDropdown.style.width = getTextWidth(el.text) + 24 + 'px';
}else{
el.removeAttribute('selected');
}
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}
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},
computed: {
requestCode: function(){
return ['const res = await fetch("' + this.BaseUrl + '/translate", {',
' method: "POST",',
' body: JSON.stringify({',
' q: "' + this.$options.filters.escape(this.inputText) + '",',
' source: "' + this.$options.filters.escape(this.sourceLang) + '",',
' target: "' + this.$options.filters.escape(this.targetLang) + '"',
' }),',
' headers: { "Content-Type": "application/json" }',
'});',
'',
'console.log(await res.json());'].join("\n");
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}
},
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filters: {
escape: function(v){
return v.replace('"', '\\\"');
},
highlight: function(v){
return Prism.highlight(v, Prism.languages.javascript, 'javascript');
}
},
methods: {
abortPreviousTransRequest: function(){
if (this.transRequest){
this.transRequest.abort();
this.transRequest = null;
}
},
swapLangs: function(){
var t = this.sourceLang;
this.sourceLang = this.targetLang;
this.targetLang = t;
this.inputText = this.translatedText;
this.translatedText = "";
this.handleInput();
},
dismissError: function(){
this.error = '';
},
handleInput: function(e){
if (this.timeout) clearTimeout(this.timeout);
this.timeout = null;
if (this.inputText === ""){
this.translatedText = "";
this.output = "";
this.abortPreviousTransRequest();
this.loadingTranslation = false;
return;
}
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var self = this;
self.loadingTranslation = true;
this.timeout = setTimeout(function(){
self.abortPreviousTransRequest();
var request = new XMLHttpRequest();
self.transRequest = request;
var data = new FormData();
data.append("q", self.inputText);
data.append("source", self.sourceLang);
data.append("target", self.targetLang);
data.append("api_key", localStorage.getItem("api_key") || "");
request.open('POST', BaseUrl + '/translate', true);
request.onload = function() {
try{
var res = JSON.parse(this.response);
// Success!
if (res.translatedText !== undefined){
self.translatedText = res.translatedText;
self.loadingTranslation = false;
self.output = JSON.stringify(res, null, 4);
}else{
throw new Error(res.error || "Unknown error");
}
}catch(e){
self.error = e.message;
self.loadingTranslation = false;
}
};
request.onerror = function() {
self.error = "Error while calling /translate";
self.loadingTranslation = false;
};
request.send(data);
}, '{{ frontendTimeout }}');
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},
copyText: function(e){
e.preventDefault();
this.$refs.translatedTextarea.select();
this.$refs.translatedTextarea.setSelectionRange(0, 9999999); /* For mobile devices */
document.execCommand("copy");
if (this.copyTextLabel === "Copy text"){
this.copyTextLabel = "Copied";
var self = this;
setTimeout(function(){
self.copyTextLabel = "Copy text";
}, 1500);
}
},
deleteText: function(e){
e.preventDefault();
this.inputText = this.translatedText = this.output = "";
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}
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}
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});
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});
function getTextWidth(text) {
var canvas = getTextWidth.canvas || (getTextWidth.canvas = document.createElement("canvas"));
var ctx = canvas.getContext("2d");
ctx.font = 'bold 16px sans-serif';
var textWidth = Math.ceil(ctx.measureText(text).width);
return textWidth;
}
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function setApiKey(){
var prevKey = localStorage.getItem("api_key") || "";
var newKey = "";
newKey = window.prompt("Type in your API Key. If you need an API key, contact the server operator.", prevKey);
if (newKey === null) newKey = "";
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localStorage.setItem("api_key", newKey);
}
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// @license-end
</script>
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</body>
</html>