Corpus first share link

app/corpora/routes.py

+from datetime import datetime, timedelta
 from flask import (
     abort,
     current_app,
@@ -11,6 +12,7 @@ from flask import (
 )
 from flask_login import current_user, login_required
 from threading import Thread
+import jwt
 import os
 from app import db, hashids
 from app.models import Corpus, CorpusFile, CorpusStatus, CorpusFollowerAssociation, User
@@ -57,6 +59,7 @@ def create_corpus():
 @bp.route('/<hashid:corpus_id>', methods=['GET', 'POST'])
 @login_required
 def corpus(corpus_id):
+    print(corpus_id)
     corpus = Corpus.query.get_or_404(corpus_id)
     if not (corpus.user == current_user
             or current_user.is_administrator()
@@ -72,11 +75,23 @@ def corpus(corpus_id):
         db.session.commit()
         flash('Your changes have been saved')
         return redirect(url_for('.corpus', corpus_id=corpus.id))
+    now = datetime.utcnow()
+    payload = {
+            'iat': now,
+            'iss': current_app.config['SERVER_NAME'],
+            'sub': corpus.hashid
+        }
+    token = jwt.encode(
+            payload,
+            current_app.config['SECRET_KEY'],
+            algorithm='HS256'
+        )
     if corpus.user == current_user:
         return render_template(
             'corpora/corpus.html.j2',
             corpus_settings_form=corpus_settings_form,
             corpus=corpus,
+            token=token,
             title='Corpus'
         )
     else:
@@ -88,8 +103,23 @@ def corpus(corpus_id):
             title='Corpus'
         )
 
+@bp.route('/share/<token>', methods=['GET', 'POST'])
+def share_corpus(token):
+    try:
+        payload = jwt.decode(
+            token,
+            current_app.config['SECRET_KEY'],
+            algorithms=['HS256'],
+            issuer=current_app.config['SERVER_NAME'],
+            options={'require': ['iat', 'iss', 'sub']}
+        )
+    except jwt.PyJWTError:
+        return False
+    corpus_hashid = payload.get('sub')
+    corpus_id = hashids.decode(corpus_hashid)
+    return redirect(url_for('.corpus', corpus_id=corpus_id))
 
-
+    
 # @bp.route('/<hashid:corpus_id>/update')
 # @login_required
 # def update_corpus(corpus_id):
@@ -296,7 +326,7 @@ def follow_corpus(corpus_id):
     if not user.is_following_corpus(corpus):
         user.follow_corpus(corpus)
     db.session.commit()
-    # flash('Hallo Inga Kirschnick')
+    flash(f'You are following {corpus.title} now', category='corpus')
     return {}, 202
 
 @bp.route('/<hashid:corpus_id>/unfollow', methods=['GET', 'POST'])
@@ -315,6 +345,7 @@ def unfollow_corpus(corpus_id):
     if user.is_following_corpus(corpus):
         user.unfollow_corpus(corpus)
     db.session.commit()
+    flash(f'You are not following {corpus.title} anymore', category='corpus')
     return {}, 202
 
 @bp.route('/add_permission/<hashid:corpus_id>/<hashid:user_id>/<int:permission>')

app/templates/corpora/corpus.html.j2

@@ -86,21 +86,13 @@
     </div>
     {% if current_user.can(Permission.ADMINISTRATE) or current_user.hashid == corpus.user.hashid %}
     <div class="col s12">
-      <form method="POST">
-      {{ corpus_settings_form.hidden_tag() }}
-        <div class="card">
-          <div class="card-content">
-            <span class="card-title" id="files">Corpus settings</span>
-            <br>
-            <p></p>
-            {{ wtf.render_field(corpus_settings_form.is_public) }}
-            <br>
-          </div>
-          <div class="card-action right-align">
-            {{ wtf.render_field(corpus_settings_form.submit, material_icon='send') }}
-          </div>
+      <div class="card">
+        <div class="card-content">
+          <a class="action-button btn waves-effect waves-light" id="generate-share-link-button">Generate Share Link</a>
+          <div id="share-link"></div>
+          <a class="action-button btn-small waves-effect waves-light hide" id="copy-share-link-button">Copy</a>
         </div>
-      </form>
+      </div>
     </div>
     {% endif %}
     <div class="col s12">
@@ -119,5 +111,24 @@
 {{ super() }}
 <script>
   let corpusDisplay = new CorpusDisplay(document.querySelector('#corpus-display'));
+  let generateShareLinkButton = document.querySelector('#generate-share-link-button');
+  let copyShareLinkButton = document.querySelector('#copy-share-link-button');
+  let shareLink = document.querySelector('#share-link');
+  let linkValue = '{{ url_for('corpora.share_corpus', token=token, _external=True) }}';
+
+  generateShareLinkButton.addEventListener('click', () => {
+    let shareLinkElement = document.createElement('input');
+    shareLinkElement.value = linkValue;
+    shareLinkElement.setAttribute('readonly', '');
+    shareLink.appendChild(shareLinkElement);
+  	copyShareLinkButton.classList.remove('hide');
+  });
+
+  copyShareLinkButton.addEventListener('click', () => {
+    let shareLinkElement = document.querySelector('#share-link input');
+    shareLinkElement.select();
+    document.execCommand('copy');
+    app.flash(`Copied!`, 'success');
+  });
 </script>
 {% endblock scripts %}

app/templates/corpora/corpus_public.html.j2

@@ -7,7 +7,7 @@
 <div class="container">
   <div class="row">
     <div class="col s12">
-      <h1>{{ title }} </h1>
+      <h1>{{ corpus.title }} </h1>
       <div class="row">
         <div class="col s8 m9 l10">
           <a class="btn waves-effect waves-light" id="follow-corpus-request">