From 45a774990b8d89ae2fb1139691ad70257cf93d02 Mon Sep 17 00:00:00 2001
From: Étienne Loks <etienne.loks@iggdrasil.net>
Date: Sun, 15 Sep 2019 13:19:49 +0200
Subject: QR Code for searches

---
 ishtar_common/forms_common.py                      | 41 ++++++++++--
 ishtar_common/static/js/ishtar.js                  | 17 ++++-
 ishtar_common/templates/blocks/DataTables.html     |  1 +
 .../templates/ishtar/forms/qrcode_for_search.html  | 78 ++++++++++++++++++++++
 ishtar_common/templates/widgets/search_input.html  | 11 ++-
 ishtar_common/urls.py                              |  2 +
 ishtar_common/views.py                             | 10 +++
 7 files changed, 153 insertions(+), 7 deletions(-)
 create mode 100644 ishtar_common/templates/ishtar/forms/qrcode_for_search.html

(limited to 'ishtar_common')

diff --git a/ishtar_common/forms_common.py b/ishtar_common/forms_common.py
index 67e29289a..48d0fdc7b 100644
--- a/ishtar_common/forms_common.py
+++ b/ishtar_common/forms_common.py
@@ -17,12 +17,13 @@
 
 # See the file COPYING for details.
 
-"""
-Administrative forms definitions: manage accounts and persons
-"""
-
+import datetime
+import os
+import pyqrcode
 import requests
+import shutil
 import tempfile
+from urllib.parse import urlparse, quote
 
 from django import forms
 from django.conf import settings
@@ -34,6 +35,7 @@ from django.core.exceptions import ObjectDoesNotExist
 from django.core.files import File
 from django.forms.formsets import formset_factory
 from django.forms.models import BaseModelFormSet, BaseFormSet
+from django.shortcuts import reverse
 from django.utils.safestring import mark_safe
 from django.utils.translation import ugettext_lazy as _, pgettext
 
@@ -1601,3 +1603,34 @@ class SearchQueryForm(forms.Form):
             sq.query = data['query']
             sq.save()
         return sq
+
+
+class QRSearchForm(forms.Form):
+    query = forms.CharField(max_length=None, label=_(u"Query"), initial='*')
+    current_url = forms.CharField(max_length=None, label="",
+                                  widget=forms.HiddenInput())
+
+    def save(self):
+        data = self.cleaned_data
+        url = data["current_url"]
+        parsed_url = urlparse(url)
+        base_url = "{}://{}".format(parsed_url.scheme, parsed_url.netloc)
+        url = base_url + parsed_url.path
+        url += "?stored_search=" + quote(data["query"])
+        tiny_url = models.TinyUrl.objects.create(link=url)
+
+        short_url = base_url + reverse('tiny-redirect',
+                                       args=[tiny_url.get_short_id()])
+        qr = pyqrcode.create(short_url, version=settings.ISHTAR_QRCODE_VERSION)
+        tmpdir = tempfile.mkdtemp("-qrcode")
+        date = datetime.datetime.today().isoformat().replace(
+            ":", "-").replace(".", "")
+        base_filename = '{}-qrcode.png'.format(date)
+        filename = os.path.join(tmpdir, base_filename)
+        qr.png(filename, scale=settings.ISHTAR_QRCODE_SCALE)
+
+        dest_dir = os.path.join(settings.MEDIA_ROOT, "tmp")
+        if not os.path.exists(dest_dir):
+            os.makedirs(dest_dir)
+        shutil.move(filename, dest_dir)
+        return os.path.join(settings.MEDIA_URL, "tmp", base_filename)
diff --git a/ishtar_common/static/js/ishtar.js b/ishtar_common/static/js/ishtar.js
index 2c2a72e17..7d93c6e45 100644
--- a/ishtar_common/static/js/ishtar.js
+++ b/ishtar_common/static/js/ishtar.js
@@ -39,6 +39,13 @@ if (typeof String.prototype.format !== 'function') {
     };
 }
 
+$.urlParam = function(name){
+    var results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(window.location.href);
+    if (results==null) {
+       return null;
+    }
+    return decodeURI(results[1]) || 0;
+}
 
 function manage_async_link(event){
     event.preventDefault();
@@ -794,9 +801,11 @@ var enable_save = function(){
     if ($(".search-widget input").val()){
         $("#save-search-button").removeClass('disabled');
         $("#clear-search-button").removeClass('disabled');
+        $("#generate-qrcode").removeClass('disabled');
     } else {
         $("#save-search-button").addClass('disabled');
         $("#clear-search-button").addClass('disabled');
+        $("#generate-qrcode").addClass('disabled');
     }
 }
 
@@ -824,6 +833,13 @@ function _clear_search_criteria_fields(query){
     filter_search_fields();
 }
 
+var get_search_parameters_from_url = function(){
+    var stored_search = $.urlParam('stored_search');
+    if(!stored_search) return;
+    $("#id_search_vector").val(stored_search);
+    enable_save();
+};
+
 function update_search_field(){
     var query = $("#id_search_vector").val();
     if (!query){
@@ -1180,7 +1196,6 @@ var render_gallery = function(data_table, table_name, nb_select, gallery_id){
     var page_current = data_table['page'];
     var recordsTotal = data_table['recordsTotal'];
     html += "<span class='ishtar-gallery-info'>";
-    console.log(data_table);
     var page_min = ((page_current - 1) * nb_select + 1);
     if (page_min > recordsTotal) page_min = recordsTotal;
     html += info_show_msg + " " + page_min + " ";
diff --git a/ishtar_common/templates/blocks/DataTables.html b/ishtar_common/templates/blocks/DataTables.html
index 6b24049a4..54ae5a630 100644
--- a/ishtar_common/templates/blocks/DataTables.html
+++ b/ishtar_common/templates/blocks/DataTables.html
@@ -271,6 +271,7 @@ jQuery(document).ready(function(){
     return true;
   });
 {% endif %}
+  get_search_parameters_from_url();
   datatable_submit_search(true);
 });
 
diff --git a/ishtar_common/templates/ishtar/forms/qrcode_for_search.html b/ishtar_common/templates/ishtar/forms/qrcode_for_search.html
new file mode 100644
index 000000000..255fd57ff
--- /dev/null
+++ b/ishtar_common/templates/ishtar/forms/qrcode_for_search.html
@@ -0,0 +1,78 @@
+{% load i18n inline_formset table_form %}
+<div class="modal-dialog modal-sm" id="save-qrcode-div">
+    <div class="modal-content">
+        <div class="modal-header">
+            <h5>{% trans "QR Code for this search" %}</h5>
+            <button type="button" class="close" data-dismiss="modal" aria-label="Close">
+                <span aria-hidden="true">&times;</span>
+            </button>
+        </div>
+        <div class="alert alert-info">
+            <p>{% trans "Print the generated QR Code to make it available with a simple scan." %}</p>
+        </div>
+        <form enctype="multipart/form-data"
+              action="{% url 'search-qrcode' %}" method="post" id="save-qrcode-form">
+            <div class="modal-body form-row-modal">
+              {% csrf_token %}
+              <div class='form'>
+                {% bs_form form%}
+              </div>
+              {% if qr_code %}
+              <div class='text-center'>
+                <a href="{{qr_code}}" target="_blank">
+                  <img src="{{qr_code}}" class="img-thumbnail">
+                </a>
+              </div>
+              {% endif %}
+            </div>
+            <div class="modal-footer">
+                <div class="col-sm">
+                    {% if not qr_code %}
+                    <button type="button" id="search-qrcode-submit"
+                            name='validate'
+                            value="validate" class="btn btn-success">
+                        {% trans "Generate" %}
+                    </button>
+                    {% endif %}
+                    <button type="button" data-dismiss="modal"
+                            aria-label="Close" class="btn btn-secondary">
+                        {% trans "Close" %}
+                    </button>
+                </div>
+            </div>
+        </form>
+    </div>
+</div>
+
+<script type='text/javascript'>
+
+var submit_gqr_form = function(){
+    $.ajax({
+        type: "POST",
+        url: "{% url 'search-qrcode' %}",
+        data: $("#save-qrcode-form").serialize(),
+        success: function(data){
+            $("#save-qrcode-div").parent().html(data);
+        },
+        dataType: 'html'
+    });
+    return false;
+}
+
+$(document).ready(function(){
+    $("#id_query").prop("readonly", true);
+    var q_value = $("#id_search_vector").val();
+    if (!q_value) q_value = '*';
+    $("#id_query").val(q_value);
+    $("#id_current_url").val(window.location.href);
+    $("#search-qrcode-submit").click(submit_gqr_form);
+    $("#save-qrcode-form").submit(function(e){
+        e.preventDefault();
+        submit_gqr_form();
+        return false;
+    });
+});
+
+</script>
+
+
diff --git a/ishtar_common/templates/widgets/search_input.html b/ishtar_common/templates/widgets/search_input.html
index 0083db54b..114fea5a1 100644
--- a/ishtar_common/templates/widgets/search_input.html
+++ b/ishtar_common/templates/widgets/search_input.html
@@ -39,8 +39,15 @@
               id="load-bookmark">
             <i class="fa fa-bookmark" aria-hidden="true"></i>
         </span>
-        <div class="dropdown-menu" id="bookmark-list">
-        </div>
+        <div class="dropdown-menu" id="bookmark-list"></div>
+        <a class="input-group-text input-link async-link disabled"
+           id="generate-qrcode"
+           data-target="#modal-dynamic-form"
+           data-modal-open="#modal-dynamic-form"
+           title="{% trans 'Generate a QR Code' %}"
+           href="{% url 'search-qrcode' %}">
+            <i class="fa fa-qrcode" aria-hidden="true"></i>
+        </a>
 
     </span>
 </div>
diff --git a/ishtar_common/urls.py b/ishtar_common/urls.py
index 664a6b391..534e618f7 100644
--- a/ishtar_common/urls.py
+++ b/ishtar_common/urls.py
@@ -42,6 +42,8 @@ urlpatterns = [
     url(r'shortcut_menu/', views.shortcut_menu, name='shortcut-menu'),
     url(r'display/(?P<item_type>\w+)/(?P<pk>\d+)/',
         views.DisplayItemView.as_view(), name='display-item'),
+    url(r'qrcode/search/',
+        views.QRCodeForSearchView.as_view(), name='search-qrcode'),
     url(r'qrcode/(?P<app>[-a-z]+)/(?P<model_name>[-a-z]+)/(?P<pk>\d+)/',
         views.QRCodeView.as_view(), name='qrcode-item'),
     url(r'^generate-labels/(?P<template_slug>[-a-z0-9]+)/',
diff --git a/ishtar_common/views.py b/ishtar_common/views.py
index f1f7f2a82..33446ec8b 100644
--- a/ishtar_common/views.py
+++ b/ishtar_common/views.py
@@ -2107,6 +2107,16 @@ class BookmarkList(SearchQueryMixin, JSONResponseMixin, LoginRequiredMixin,
         }
 
 
+class QRCodeForSearchView(LoginRequiredMixin, FormView):
+    template_name = 'ishtar/forms/qrcode_for_search.html'
+    form_class = forms.QRSearchForm
+
+    def form_valid(self, form):
+        context_data = self.get_context_data()
+        context_data["qr_code"] = form.save()
+        return self.render_to_response(context_data)
+
+
 class SearchQueryDelete(LoginRequiredMixin, DeleteView):
     model = models.SearchQuery
     template_name = 'ishtar/forms/bookmark_delete.html'
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