add password reset

sourcing/forms.py

@@ -17,7 +17,7 @@ class SignupForm(Form):
                         [InputRequired(), Email(),
                          Length(min=5, max=EMAIL_LEN)],
                         description="we never share your e-mail address")
-    password = PasswordField('password',
+    password = StringField('password',
                         [InputRequired(), Length(min=4, max=PASSWORD_LEN)])
 
     def validate_username(form, field):
@@ -51,8 +51,12 @@ class LoginForm(Form):
             return False
 
 class ForgotPasswordForm(Form):
-    username_or_email = StringField('username or e-mail address',
+    user_or_email = StringField('username or e-mail address',
-                                    [InputRequired(), Length(max=EMAIL_LEN)])
+                                [InputRequired(), Length(max=EMAIL_LEN)])
+
+class PasswordForm(Form):
+    password = PasswordField('new password',
+                             [InputRequired(), Length(min=4, max=PASSWORD_LEN)])
 
 class AccountSettingsForm(Form):
     full_name = StringField('full name', [Length(max=64)])

sourcing/templates/auth/password_reset.html

@@ -0,0 +1,10 @@
+{% from "form/controls.html" import render_field, checkbox, submit %}
+
+{% set title="Reset password" %}
+{% set label="send e-mail" %}
+
+{% set fields %}
+{{ render_field(form.user_or_email) }}
+{% endset %}
+
+{% include "form/simple.html" %}

sourcing/templates/auth/password_reset_complete.html

@@ -0,0 +1,19 @@
+{% from "form/controls.html" import render_field, checkbox, submit %}
+
+{% set title="Reset password" %}
+{% set label="send e-mail" %}
+
+{% include "head.html" %}
+
+<div class="row">
+    <div class="col-md-12">
+        <h1>{{ title }}</h1>
+
+<p>Your password has been set.  You may go ahead and log in now.</p>
+
+<p><a href="{{ url_for('.login') }}">Log in</a></p>
+
+    </div>
+</div>
+
+{% include "foot.html" %}

sourcing/templates/auth/password_reset_confirm.html

@@ -0,0 +1,10 @@
+{% from "form/controls.html" import render_field %}
+
+{% set title="Reset password" %}
+{% set label="reset" %}
+
+{% set fields %}
+{{ render_field(form.password) }}
+{% endset %}
+
+{% include "form/simple.html" %}

sourcing/templates/auth/password_reset_sent.html

@@ -0,0 +1,17 @@
+{% from "form/controls.html" import render_field, checkbox, submit %}
+
+{% set title="Reset password" %}
+{% set label="send e-mail" %}
+
+{% include "head.html" %}
+
+<div class="row">
+    <div class="col-md-12">
+        <h1>{{ title }}</h1>
+        <p>We've emailed you instructions for setting your password, if an account exists with the email you entered. You should receive them shortly.</p>
+
+        <p>If you don't receive an email, please make sure you've entered the address you registered with, and check your spam folder.</p>
+    </div>
+</div>
+
+{% include "foot.html" %}

sourcing/templates/login.html

@@ -7,7 +7,17 @@
 {% set fields %}
 {{ render_field(form.user_or_email) }}
 {{ render_field(form.password) }}
-{{ checkbox(form.remember) }}
+
+<div class="form-group">
+    <label class="checkbox-inline">
+          {{ form.remember() }}
+          {{ form.remember.label.text }}
+    </label>
+    ·
+    <a href="{{ url_for('.password_reset') }}">forgot password?</a>
+</div>
+
+
 {% endset %}
 
 {% include "form/simple.html" %}

sourcing/view.py

@@ -1,9 +1,10 @@
 from flask import (Blueprint, render_template, request, redirect, flash,
-                   url_for, abort, jsonify, Response)
+                   url_for, abort, jsonify, Response, current_app)
 from flask_login import (login_user, current_user, logout_user,
                          login_required, LoginManager)
 from .forms import (LoginForm, SignupForm, AccountSettingsForm,
-                    UploadSourceDocForm, SourceDocForm, ItemForm)
+                    UploadSourceDocForm, SourceDocForm, ItemForm,
+                    ForgotPasswordForm, PasswordForm)
 from .model import User, SourceDoc, Item, XanaDoc, XanaLink
 from .url import get_url
 from .edl import fulfil_edl_with_sources
@@ -13,6 +14,7 @@ from werkzeug.debug.tbtools import get_current_traceback
 from jinja2 import evalcontextfilter, Markup
 from functools import wraps
 from .utils import nbsp_at_start
+from itsdangerous import URLSafeTimedSerializer
 
 import re
 
@@ -60,6 +62,45 @@ def home():
     docs = Item.query.order_by(Item.created)
     return render_template('home.html', docs=docs)
 
+@bp.route('/password_reset', methods=['GET', 'POST'])
+def password_reset():
+    form = ForgotPasswordForm()
+    if not form.validate_on_submit():
+        return render_template('auth/password_reset.html', form=form)
+    ts = URLSafeTimedSerializer(current_app.config["SECRET_KEY"])
+    user = User.lookup_user_or_email(form.user_or_email.data)
+    if user:
+        token = ts.dumps(user.id, salt='password-reset')
+        print(token)
+    return redirect(url_for('.password_reset_sent'))
+
+@bp.route('/password_reset/sent', methods=['GET', 'POST'])
+def password_reset_sent():
+    return render_template('auth/password_reset_sent.html')
+
+@bp.route('/reset/<token>', methods=['GET', 'POST'])
+def reset_with_token(token):
+    ts = URLSafeTimedSerializer(current_app.config["SECRET_KEY"])
+    try:
+        user_id = ts.loads(token, salt='password-reset', max_age=86400)
+    except:
+        abort(404)
+
+    form = PasswordForm()
+    if not form.validate_on_submit():
+        return render_template('auth/password_reset_confirm.html', form=form)
+
+    user = User.query.get(user_id)
+    user.set_password(form.password.data)
+    session.add(user)
+    session.commit()
+
+    return redirect(url_for('.password_reset_complete'))
+
+@bp.route('/reset/done')
+def password_reset_complete():
+    return render_template('auth/password_reset_complete.html')
+
 @bp.route('/source_doc_upload', methods=["POST"])
 @show_errors
 def source_doc_upload():