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oauth2-proxy/templates.go

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package main
import (
"html/template"
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"path"
"strings"
"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/logger"
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)
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func loadTemplates(dir string) *template.Template {
if dir == "" {
return getTemplates()
}
logger.Printf("using custom template directory %q", dir)
funcMap := template.FuncMap{
"ToUpper": strings.ToUpper,
"ToLower": strings.ToLower,
}
t, err := template.New("").Funcs(funcMap).ParseFiles(path.Join(dir, "sign_in.html"), path.Join(dir, "error.html"))
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if err != nil {
logger.Fatalf("failed parsing template %s", err)
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}
return t
}
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func getTemplates() *template.Template {
t, err := template.New("foo").Parse(`{{define "sign_in.html"}}
<!DOCTYPE html>
<html lang="en" charset="utf-8">
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<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<title>Sign In</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma@0.9.1/css/bulma.min.css">
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<style>
body {
height: 100vh;
}
.sign-in-box {
max-width: 400px;
margin: 1.25rem auto;
}
footer a {
text-decoration: underline;
}
</style>
<script>
if (window.location.hash) {
(function() {
var inputs = document.getElementsByName('rd');
for (var i = 0; i < inputs.length; i++) {
// Add hash, but make sure it is only added once
var idx = inputs[i].value.indexOf('#');
if (idx >= 0) {
// Remove existing hash from URL
inputs[i].value = inputs[i].value.substr(0, idx);
}
inputs[i].value += window.location.hash;
}
})();
}
</script>
</head>
<body class="has-background-light">
<section class="section">
<div class="box block sign-in-box has-text-centered">
<form method="GET" action="{{.ProxyPrefix}}/start">
<input type="hidden" name="rd" value="{{.Redirect}}">
{{ if .SignInMessage }}
<p class="block">{{.SignInMessage}}</p>
{{ end}}
<button type="submit" class="button block is-primary">Sign in with {{.ProviderName}}</button>
</form>
{{ if .CustomLogin }}
<hr>
<form method="POST" action="{{.ProxyPrefix}}/sign_in" class="block">
<input type="hidden" name="rd" value="{{.Redirect}}">
<div class="field">
<label class="label" for="username">Username</label>
<div class="control">
<input class="input" type="email" placeholder="e.g. userx@example.com" name="username" id="username">
</div>
</div>
<div class="field">
<label class="label" for="password">Password</label>
<div class="control">
<input class="input" type="password" placeholder="********" name="password" id="password">
</div>
</div>
<button class="button is-primary">Sign in</button>
{{ end }}
</form>
</div>
</section>
<footer class="footer has-text-grey has-background-light is-size-7">
<div class="content has-text-centered">
{{ if eq .Footer "-" }}
{{ else if eq .Footer ""}}
<p>Secured with <a href="https://github.com/oauth2-proxy/oauth2-proxy#oauth2_proxy" class="has-text-grey">OAuth2 Proxy</a> version {{.Version}}</p>
{{ else }}
<p>{{.Footer}}</p>
{{ end }}
</div>
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</footer>
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</body>
</html>
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{{end}}`)
if err != nil {
logger.Fatalf("failed parsing template %s", err)
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}
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t, err = t.Parse(`{{define "error.html"}}
<!DOCTYPE html>
<html lang="en" charset="utf-8">
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<head>
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<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<title>{{.StatusCode}} {{.Title}}</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma@0.9.1/css/bulma.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.2/css/all.min.css">
<script type="text/javascript">
document.addEventListener('DOMContentLoaded', function() {
let cardToggles = document.getElementsByClassName('card-toggle');
for (let i = 0; i < cardToggles.length; i++) {
cardToggles[i].addEventListener('click', e => {
e.currentTarget.parentElement.parentElement.childNodes[3].classList.toggle('is-hidden');
});
}
});
</script>
<style>
body {
height: 100vh;
}
.error-box {
margin: 1.25rem auto;
max-width: 600px;
}
.status-code {
font-size: 12rem;
font-weight: 600;
}
#more-info.card {
border: 1px solid #f0f0f0;
}
footer a {
text-decoration: underline;
}
</style>
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</head>
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<body class="has-background-light">
<section class="section">
<div class="box block error-box has-text-centered">
<div class="status-code">{{.StatusCode}}</div>
<div class="block">
<h1 class="subtitle is-1">{{.Title}}</h1>
</div>
{{ if .Message }}
<div id="more-info" class="block card is-fullwidth is-shadowless">
<header class="card-header is-shadowless">
<p class="card-header-title">More Info</p>
<a class="card-header-icon card-toggle">
<i class="fa fa-angle-down"></i>
</a>
</header>
<div class="card-content has-text-left is-hidden">
<div class="content">
{{.Message}}
</div>
</div>
</div>
{{ end }}
<hr>
<div class="columns">
<div class="column">
<form method="GET" action="{{.Redirect}}">
<button type="submit" class="button is-danger is-fullwidth">Go back</button>
</form>
</div>
<div class="column">
<form method="GET" action="{{.ProxyPrefix}}/sign_in">
<input type="hidden" name="rd" value="{{.Redirect}}">
<button type="submit" class="button is-primary is-fullwidth">Sign in</button>
</form>
</div>
</div>
</div>
</section>
<footer class="footer has-text-grey has-background-light is-size-7">
<div class="content has-text-centered">
{{ if eq .Footer "-" }}
{{ else if eq .Footer ""}}
<p>Secured with <a href="https://github.com/oauth2-proxy/oauth2-proxy#oauth2_proxy" class="has-text-grey">OAuth2 Proxy</a> version {{.Version}}</p>
{{ else }}
<p>{{.Footer}}</p>
{{ end }}
</div>
</footer>
</body>
</html>
{{end}}`)
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if err != nil {
logger.Fatalf("failed parsing template %s", err)
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}
return t
}