From 841442ca4c13a86b3dc73443ef17bf5c67895d81 Mon Sep 17 00:00:00 2001
From: Antoine Nguyen <tonio@ngyn.org>
Date: Fri, 12 Mar 2021 15:52:54 +0100
Subject: [PATCH] Added graphical statistics to domain detail page.

---
 frontend/package.json                         |   2 +
 frontend/src/api/statistics.js                |  17 ++
 .../src/components/domains/DomainSummary.vue  |   3 +
 frontend/src/components/tools/DateField.vue   |  43 +++++
 .../src/components/tools/TimeSerieChart.vue   | 162 ++++++++++++++++++
 frontend/src/views/Domain.vue                 |  19 +-
 frontend/src/views/Domains.vue                |   3 +-
 frontend/yarn.lock                            |  72 ++++++++
 modoboa/maillog/api/__init__.py               |   0
 modoboa/maillog/api/v2/__init__.py            |   0
 modoboa/maillog/api/v2/serializers.py         |  64 +++++++
 modoboa/maillog/api/v2/urls.py                |  11 ++
 modoboa/maillog/api/v2/viewsets.py            |  45 +++++
 modoboa/maillog/graphics.py                   |  49 +++---
 modoboa/urls_api_v2.py                        |   1 +
 15 files changed, 461 insertions(+), 30 deletions(-)
 create mode 100644 frontend/src/api/statistics.js
 create mode 100644 frontend/src/components/tools/DateField.vue
 create mode 100644 frontend/src/components/tools/TimeSerieChart.vue
 create mode 100644 modoboa/maillog/api/__init__.py
 create mode 100644 modoboa/maillog/api/v2/__init__.py
 create mode 100644 modoboa/maillog/api/v2/serializers.py
 create mode 100644 modoboa/maillog/api/v2/urls.py
 create mode 100644 modoboa/maillog/api/v2/viewsets.py

diff --git a/frontend/package.json b/frontend/package.json
index e9f06fd65..e8ddddfbd 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -9,11 +9,13 @@
     "lint": "vue-cli-service lint"
   },
   "dependencies": {
+    "apexcharts": "^3.25.0",
     "core-js": "^3.6.5",
     "js-cookie": "^2.2.1",
     "luxon": "^1.26.0",
     "vee-validate": "^3.4.5",
     "vue": "^2.6.11",
+    "vue-apexcharts": "^1.6.0",
     "vue-cookie": "^1.1.4",
     "vue-gettext": "^2.1.10",
     "vue-router": "^3.2.0",
diff --git a/frontend/src/api/statistics.js b/frontend/src/api/statistics.js
new file mode 100644
index 000000000..381cd16b4
--- /dev/null
+++ b/frontend/src/api/statistics.js
@@ -0,0 +1,17 @@
+import repository from './repository'
+
+const resource = 'statistics'
+
+export default {
+  getStatistics ({ graphSet, period, graphicName, searchQuery, start, end }) {
+    const args = {
+      gset: graphSet,
+      period,
+      graphic: graphicName,
+      searchquery: searchQuery,
+      start: start,
+      end: end
+    }
+    return repository.get(`${resource}/`, { params: args })
+  }
+}
diff --git a/frontend/src/components/domains/DomainSummary.vue b/frontend/src/components/domains/DomainSummary.vue
index f488f0902..4b553badf 100644
--- a/frontend/src/components/domains/DomainSummary.vue
+++ b/frontend/src/components/domains/DomainSummary.vue
@@ -1,5 +1,8 @@
 <template>
 <v-card>
+  <v-card-title>
+    <translate class="headline">General information</translate>
+  </v-card-title>
   <v-card-text>
     <v-row>
       <v-col cols="6"><translate>Creation date</translate></v-col>
diff --git a/frontend/src/components/tools/DateField.vue b/frontend/src/components/tools/DateField.vue
new file mode 100644
index 000000000..48a4a8b4f
--- /dev/null
+++ b/frontend/src/components/tools/DateField.vue
@@ -0,0 +1,43 @@
+<template>
+<v-menu
+  v-model="menu"
+  :close-on-content-click="false"
+  transition="scale-transition"
+  offset-y
+  min-width="auto"
+  >
+  <template v-slot:activator="{ on, attrs }">
+    <v-text-field
+      :value="value"
+      :label="label"
+      prepend-icon="mdi-calendar"
+      readonly
+      v-bind="attrs"
+      v-on="on"
+      ></v-text-field>
+  </template>
+  <v-date-picker
+    :value="value"
+    @input="update"
+    no-title
+    >
+  </v-date-picker>
+</v-menu>
+</template>
+
+<script>
+export default {
+  props: ['value', 'label'],
+  data () {
+    return {
+      menu: false
+    }
+  },
+  methods: {
+    update (value) {
+      this.$emit('input', value)
+      this.menu = false
+    }
+  }
+}
+</script>
diff --git a/frontend/src/components/tools/TimeSerieChart.vue b/frontend/src/components/tools/TimeSerieChart.vue
new file mode 100644
index 000000000..dab5f63c1
--- /dev/null
+++ b/frontend/src/components/tools/TimeSerieChart.vue
@@ -0,0 +1,162 @@
+<template>
+<v-card>
+  <v-toolbar dense elevation="0">
+    <v-toolbar-title>{{ title }}</v-toolbar-title>
+    <v-spacer />
+    <v-menu
+      v-model="menu"
+      :nudge-width="200"
+      offset-y
+    >
+      <template v-slot:activator="{ on, attrs }">
+        <v-btn
+          small
+          v-bind="attrs"
+          v-on="on"
+          >
+          <v-icon small>mdi-calendar</v-icon>
+          <translate>Period</translate>
+          <span v-if="period">: {{ period }}</span>
+        </v-btn>
+      </template>
+      <v-layout>
+        <v-row>
+          <v-col cols="6" class="d-flex flex-column align-start py-3 px-6">
+            <translate class="subtitle">Absolute time range</translate>
+            <date-field v-model="start" :label="'From'|translate" />
+            <date-field v-model="end" :label="'To'|translate" />
+            <v-btn color="primary" @click="setCustomPeriod"><translate>Apply</translate></v-btn>
+          </v-col>
+          <v-col cols="6">
+            <translate class="subtitle">Relative time ranges</translate>
+            <v-list>
+              <v-list-item
+                v-for="period in periods"
+                :key="period.value"
+                @click="setPeriod(period.value)"
+                >
+                <v-list-item-title>{{ period.name }}</v-list-item-title>
+              </v-list-item>
+            </v-list>
+          </v-col>
+        </v-row>
+      </v-layout>
+    </v-menu>
+  </v-toolbar>
+  <v-card-text>
+    <apexchart
+      v-if="statistics"
+      type="area"
+      height="350"
+      :options="options"
+      :series="statistics.series"
+      />
+  </v-card-text>
+</v-card>
+</template>
+
+<script>
+import VueApexCharts from 'vue-apexcharts'
+import statistics from '@/api/statistics'
+import DateField from './DateField'
+
+export default {
+  components: {
+    apexchart: VueApexCharts,
+    DateField
+  },
+  props: ['domain', 'graphicSet', 'graphicName'],
+  computed: {
+    title () {
+      if (this.statistics) {
+        return this.statistics.title
+      }
+      return ''
+    },
+    colors () {
+      if (this.graphicName === 'averagetraffic') {
+        return ['#ff6347', '#ffff00', '#4682B4', '#7cfc00', '#ffa500', '#d3d3d3']
+      }
+      return ['#ffa500', '#41d1cc']
+    }
+  },
+  data () {
+    return {
+      dateMenu: false,
+      menu: false,
+      options: {
+        colors: this.colors,
+        chart: {
+          type: 'area',
+          stacked: false,
+          zoom: {
+            type: 'x',
+            enabled: true,
+            autoScaleYaxis: true
+          },
+          toolbar: {
+            autoSelected: 'zoom'
+          }
+        },
+        dataLabels: {
+          enabled: false
+        },
+        yaxis: {
+        },
+        xaxis: {
+          type: 'datetime'
+        }
+      },
+      end: null,
+      start: null,
+      statistics: null,
+      period: 'day',
+      periods: [
+        { value: 'day', name: this.$gettext('Day') },
+        { value: 'week', name: this.$gettext('Week') },
+        { value: 'month', name: this.$gettext('Month') },
+        { value: 'year', name: this.$gettext('Year') }
+      ]
+    }
+  },
+  methods: {
+    setCustomPeriod () {
+      this.period = 'custom'
+      this.fetchStatistics()
+    },
+    setPeriod (period) {
+      if (period !== this.period) {
+        this.period = period
+        this.fetchStatistics()
+      }
+    },
+    fetchStatistics () {
+      const args = {
+        graphSet: this.graphicSet,
+        period: this.period,
+        graphicName: this.graphicName,
+        searchQuery: this.domain.name
+      }
+      if (this.period === 'custom') {
+        args.start = this.start
+        args.end = this.end
+      }
+      statistics.getStatistics(args).then(resp => {
+        this.statistics = resp.data.graphs[this.graphicName]
+      })
+    }
+  },
+  mounted () {
+    this.fetchStatistics()
+  }
+}
+</script>
+
+<style scoped>
+.v-card {
+  z-index: 5;
+}
+.v-menu__content {
+  background-color: white !important;
+}
+</style>
diff --git a/frontend/src/views/Domain.vue b/frontend/src/views/Domain.vue
index 34214799b..09e9f5260 100644
--- a/frontend/src/views/Domain.vue
+++ b/frontend/src/views/Domain.vue
@@ -11,11 +11,22 @@
     <v-row>
       <v-col cols="6">
         <domain-summary :domain="domain" />
-        <div class="mt-4" />
+      </v-col>
+      <v-col cols="6">
         <domain-dns-summary :domain="domain" />
       </v-col>
     </v-row>
   </v-layout>
+  <v-layout>
+    <v-row>
+      <v-col cols="12">
+        <time-serie-chart :domain="domain" graphic-set="mailtraffic" graphic-name="averagetraffic" />
+      </v-col>
+      <v-col cols="12">
+        <time-serie-chart :domain="domain" graphic-set="mailtraffic" graphic-name="averagetrafficsize" />
+      </v-col>
+    </v-row>
+  </v-layout>
   <v-dialog v-model="showEditForm"
             persistent
             max-width="800px"
@@ -40,13 +51,15 @@ import AdministratorList from '@/components/domains/AdministratorList'
 import DomainForm from '@/components/domains/DomainForm'
 import DomainDNSSummary from '@/components/domains/DomainDNSSummary'
 import DomainSummary from '@/components/domains/DomainSummary'
+import TimeSerieChart from '@/components/tools/TimeSerieChart'
 
 export default {
   components: {
     AdministratorList,
     DomainForm,
     'domain-dns-summary': DomainDNSSummary,
-    DomainSummary
+    DomainSummary,
+    TimeSerieChart
   },
   data () {
     return {
@@ -55,6 +68,8 @@ export default {
       showAdminList: false
     }
   },
+  methods: {
+  },
   mounted () {
     domains.getDomain(this.$route.params.id).then(resp => {
       this.domain = resp.data
diff --git a/frontend/src/views/Domains.vue b/frontend/src/views/Domains.vue
index f80d0ce3b..db05e19e3 100644
--- a/frontend/src/views/Domains.vue
+++ b/frontend/src/views/Domains.vue
@@ -12,7 +12,8 @@
     <v-menu offset-y>
       <template v-slot:activator="{ on, attrs }">
         <v-btn color="primary" v-bind="attrs" v-on="on">
-          <v-icon left>mdi-plus</v-icon> <translate>New</translate>
+          <v-icon left>mdi-plus</v-icon>
+          <translate>New</translate>
         </v-btn>
       </template>
       <v-list dense>
diff --git a/frontend/yarn.lock b/frontend/yarn.lock
index 58075c16a..d62fd3276 100644
--- a/frontend/yarn.lock
+++ b/frontend/yarn.lock
@@ -1954,6 +1954,18 @@ anymatch@~3.1.1:
     normalize-path "^3.0.0"
     picomatch "^2.0.4"
 
+apexcharts@^3.25.0:
+  version "3.25.0"
+  resolved "https://registry.yarnpkg.com/apexcharts/-/apexcharts-3.25.0.tgz#f3f0f9f344f997230f5c7f2918408aa072627496"
+  integrity sha512-uM7OF+jLL4ba79noYcrMwMgJW8DI+Ff28CCQoGq23g25z8nGSQEoU+u12YWlECA9gBA5tbmdaQhMxjlK+M6B9Q==
+  dependencies:
+    svg.draggable.js "^2.2.2"
+    svg.easing.js "^2.0.0"
+    svg.filter.js "^2.0.2"
+    svg.pathmorphing.js "^0.1.3"
+    svg.resize.js "^1.4.3"
+    svg.select.js "^3.0.1"
+
 aproba@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
@@ -9062,6 +9074,61 @@ svg-tags@^1.0.0:
   resolved "https://registry.yarnpkg.com/svg-tags/-/svg-tags-1.0.0.tgz#58f71cee3bd519b59d4b2a843b6c7de64ac04764"
   integrity sha1-WPcc7jvVGbWdSyqEO2x95krAR2Q=
 
+svg.draggable.js@^2.2.2:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/svg.draggable.js/-/svg.draggable.js-2.2.2.tgz#c514a2f1405efb6f0263e7958f5b68fce50603ba"
+  integrity sha512-JzNHBc2fLQMzYCZ90KZHN2ohXL0BQJGQimK1kGk6AvSeibuKcIdDX9Kr0dT9+UJ5O8nYA0RB839Lhvk4CY4MZw==
+  dependencies:
+    svg.js "^2.0.1"
+
+svg.easing.js@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/svg.easing.js/-/svg.easing.js-2.0.0.tgz#8aa9946b0a8e27857a5c40a10eba4091e5691f12"
+  integrity sha1-iqmUawqOJ4V6XEChDrpAkeVpHxI=
+  dependencies:
+    svg.js ">=2.3.x"
+
+svg.filter.js@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/svg.filter.js/-/svg.filter.js-2.0.2.tgz#91008e151389dd9230779fcbe6e2c9a362d1c203"
+  integrity sha1-kQCOFROJ3ZIwd5/L5uLJo2LRwgM=
+  dependencies:
+    svg.js "^2.2.5"
+
+svg.js@>=2.3.x, svg.js@^2.0.1, svg.js@^2.2.5, svg.js@^2.4.0, svg.js@^2.6.5:
+  version "2.7.1"
+  resolved "https://registry.yarnpkg.com/svg.js/-/svg.js-2.7.1.tgz#eb977ed4737001eab859949b4a398ee1bb79948d"
+  integrity sha512-ycbxpizEQktk3FYvn/8BH+6/EuWXg7ZpQREJvgacqn46gIddG24tNNe4Son6omdXCnSOaApnpZw6MPCBA1dODA==
+
+svg.pathmorphing.js@^0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/svg.pathmorphing.js/-/svg.pathmorphing.js-0.1.3.tgz#c25718a1cc7c36e852ecabc380e758ac09bb2b65"
+  integrity sha512-49HWI9X4XQR/JG1qXkSDV8xViuTLIWm/B/7YuQELV5KMOPtXjiwH4XPJvr/ghEDibmLQ9Oc22dpWpG0vUDDNww==
+  dependencies:
+    svg.js "^2.4.0"
+
+svg.resize.js@^1.4.3:
+  version "1.4.3"
+  resolved "https://registry.yarnpkg.com/svg.resize.js/-/svg.resize.js-1.4.3.tgz#885abd248e0cd205b36b973c4b578b9a36f23332"
+  integrity sha512-9k5sXJuPKp+mVzXNvxz7U0uC9oVMQrrf7cFsETznzUDDm0x8+77dtZkWdMfRlmbkEEYvUn9btKuZ3n41oNA+uw==
+  dependencies:
+    svg.js "^2.6.5"
+    svg.select.js "^2.1.2"
+
+svg.select.js@^2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/svg.select.js/-/svg.select.js-2.1.2.tgz#e41ce13b1acff43a7441f9f8be87a2319c87be73"
+  integrity sha512-tH6ABEyJsAOVAhwcCjF8mw4crjXSI1aa7j2VQR8ZuJ37H2MBUbyeqYr5nEO7sSN3cy9AR9DUwNg0t/962HlDbQ==
+  dependencies:
+    svg.js "^2.2.5"
+
+svg.select.js@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/svg.select.js/-/svg.select.js-3.0.1.tgz#a4198e359f3825739226415f82176a90ea5cc917"
+  integrity sha512-h5IS/hKkuVCbKSieR9uQCj9w+zLHoPh+ce19bBYyqF53g6mnPB8sAtIbe1s9dh2S2fCmYX2xel1Ln3PJBbK4kw==
+  dependencies:
+    svg.js "^2.6.5"
+
 svgo@^1.0.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/svgo/-/svgo-1.3.2.tgz#b6dc511c063346c9e415b81e43401145b96d4167"
@@ -9627,6 +9694,11 @@ void-elements@^3.1.0:
   resolved "https://registry.yarnpkg.com/void-elements/-/void-elements-3.1.0.tgz#614f7fbf8d801f0bb5f0661f5b2f5785750e4f09"
   integrity sha1-YU9/v42AHwu18GYfWy9XhXUOTwk=
 
+vue-apexcharts@^1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/vue-apexcharts/-/vue-apexcharts-1.6.0.tgz#c7d3afd93f712433d404e5ceeb4e3aa65f422af2"
+  integrity sha512-sT6tuVTLBwfH3TA7azecDNS/W70bmz14ZJI7aE7QIqcG9I6OywyH7x3hcOeY1v1DxttI8Svc5RuYj4Dd+A5F4g==
+
 vue-cli-plugin-axios@~0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/vue-cli-plugin-axios/-/vue-cli-plugin-axios-0.0.4.tgz#29d4eb48275c7fe15b92e1fd5d95fbe2a966436f"
diff --git a/modoboa/maillog/api/__init__.py b/modoboa/maillog/api/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/modoboa/maillog/api/v2/__init__.py b/modoboa/maillog/api/v2/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/modoboa/maillog/api/v2/serializers.py b/modoboa/maillog/api/v2/serializers.py
new file mode 100644
index 000000000..d6ea07c18
--- /dev/null
+++ b/modoboa/maillog/api/v2/serializers.py
@@ -0,0 +1,64 @@
+"""App. related serializers."""
+
+from django.utils.translation import ugettext as _
+
+from rest_framework import serializers
+
+
+PERIODS = [
+    ("day", "Day"),
+    ("week", "Week"),
+    ("month", "Month"),
+    ("year", "Year"),
+    ("custom", "Custom")
+]
+
+
+class StatisticsInputSerializer(serializers.Serializer):
+    """Serializer used to filter statistics."""
+
+    gset = serializers.CharField()
+    period = serializers.ChoiceField(choices=PERIODS)
+    graphic = serializers.CharField(required=False)
+    searchquery = serializers.CharField(required=False)
+    start = serializers.DateField(required=False)
+    end = serializers.DateField(required=False)
+
+    def validate(self, data):
+        condition = (
+            data["period"] == "custom" and
+            (not data.get("start") or not data.get("end"))
+        )
+        if condition:
+            raise serializers.ValidationError(
+                _("You must provide start and end dates when period is custom")
+            )
+        return data
+
+
+class GraphPointSerializer(serializers.Serializer):
+    """A serializer to represent a point in a curve."""
+
+    x = serializers.FloatField()
+    y = serializers.FloatField()
+
+
+class GraphCurveSerializer(serializers.Serializer):
+    """A serializer to represent a curve in a graph."""
+
+    name = serializers.CharField()
+    backgroundColor = serializers.CharField()
+    data = GraphPointSerializer(many=True)
+
+
+class GraphSerializer(serializers.Serializer):
+    """A serializer to represent a graph."""
+
+    title = serializers.CharField()
+    series = GraphCurveSerializer(many=True)
+
+
+class StatisticsSerializer(serializers.Serializer):
+    """Serializer to return statistics."""
+
+    graphs = GraphSerializer(many=True)
diff --git a/modoboa/maillog/api/v2/urls.py b/modoboa/maillog/api/v2/urls.py
new file mode 100644
index 000000000..a8f43763f
--- /dev/null
+++ b/modoboa/maillog/api/v2/urls.py
@@ -0,0 +1,11 @@
+"""App related API urls."""
+
+from rest_framework import routers
+
+from . import viewsets
+
+router = routers.SimpleRouter()
+router.register(
+    r"statistics", viewsets.StatisticsViewSet, basename="statistics")
+
+urlpatterns = router.urls
diff --git a/modoboa/maillog/api/v2/viewsets.py b/modoboa/maillog/api/v2/viewsets.py
new file mode 100644
index 000000000..7e1a8f423
--- /dev/null
+++ b/modoboa/maillog/api/v2/viewsets.py
@@ -0,0 +1,45 @@
+"""App. related viewsets."""
+
+import time
+
+from drf_spectacular.utils import extend_schema
+from rest_framework import permissions, response, viewsets
+
+from ... import signals
+from . import serializers
+
+
+class StatisticsViewSet(viewsets.ViewSet):
+    """A viewset to provide extra route related to mail statistics."""
+
+    permission_classes = (permissions.IsAuthenticated, )
+
+    @extend_schema(
+        parameters=[serializers.StatisticsInputSerializer],
+        responses={200: serializers.StatisticsSerializer}
+    )
+    def list(self, request, **kwargs):
+        serializer = serializers.StatisticsInputSerializer(data=request.GET)
+        serializer.is_valid(raise_exception=True)
+        graph_sets = {}
+        for result in signals.get_graph_sets.send(
+                sender="index", user=request.user):
+            graph_sets.update(result[1])
+        gset = serializer.validated_data["gset"]
+        fname = graph_sets[gset].get_file_name(
+            request.user, serializer.validated_data.get("searchquery"))
+        period = serializer.validated_data["period"]
+        if period == "custom":
+            start = int(
+                time.mktime(serializer.validated_data["start"].timetuple())
+            )
+            end = int(
+                time.mktime(serializer.validated_data["end"].timetuple())
+            )
+        else:
+            end = int(time.mktime(time.localtime()))
+            start = "-1{}".format(period)
+        graphs = graph_sets[gset].export(
+            fname, start, end, serializer.validated_data.get("graphic")
+        )
+        return response.Response({"graphs": graphs})
diff --git a/modoboa/maillog/graphics.py b/modoboa/maillog/graphics.py
index fddcf8bf3..fb07a0444 100644
--- a/modoboa/maillog/graphics.py
+++ b/modoboa/maillog/graphics.py
@@ -1,12 +1,11 @@
 """Classes to define graphics."""
 
+import datetime
+import json
 import inspect
 from itertools import chain
 import os
 
-from lxml import etree
-import six
-
 from django.conf import settings
 from django.utils.encoding import smart_bytes, smart_text
 from django.utils.translation import ugettext as _, ugettext_lazy
@@ -18,7 +17,6 @@ from modoboa.parameters import tools as param_tools
 
 
 class Curve:
-
     """Graphic curve.
 
     Simple way to represent a graphic curve.
@@ -96,36 +94,33 @@ class Graphic:
         return smart_text(dpath)
 
     def export(self, rrdfile, start, end):
-        """Export data to XML using rrdtool and convert it to JSON."""
+        """Export data to JSON using rrdtool."""
         result = []
         cmdargs = []
         for curve in self._curves:
             result += [{
                 "name": str(curve.legend),
-                "color": curve.color, "data": []
+                "backgroundColor": curve.color, "data": []
             }]
             cmdargs += curve.to_rrd_command_args(rrdfile)
         code = 0
 
-        cmd = "{} xport --start {} --end {} ".format(
+        cmd = "{} xport --json -t --start {} --end {} ".format(
             self.rrdtool_binary, str(start), str(end))
         cmd += " ".join(cmdargs)
         code, output = exec_cmd(smart_bytes(cmd))
         if code:
             return []
 
-        tree = etree.fromstring(output)
-        timestamp = int(tree.xpath('/xport/meta/start')[0].text)
-        step = int(tree.xpath('/xport/meta/step')[0].text)
-        for row in tree.xpath('/xport/data/row'):
-            for vindex, value in enumerate(row.findall('v')):
-                if value.text == 'NaN':
-                    result[vindex]['data'].append({'x': timestamp, 'y': 0})
-                else:
-                    result[vindex]['data'].append(
-                        {'x': timestamp, 'y': float(value.text)}
-                    )
-            timestamp += step
+        xport = json.loads(output)
+        for row in xport['data']:
+            timestamp = int(row[0])
+            date = datetime.datetime.fromtimestamp(timestamp).isoformat(sep=' ')
+            for (vindex, value) in enumerate(row[1:]):
+                result[vindex]['data'].append(
+                    {'x': date, 'y': value, 'timestamp': timestamp}
+                )
+
         return result
 
 
@@ -158,13 +153,14 @@ class GraphicSet(object):
         """Return database file name."""
         return self.file_name
 
-    def export(self, rrdfile, start, end):
+    def export(self, rrdfile, start, end, graphic=None):
         result = {}
         for graph in self.graphics:
-            result[graph.display_name] = {
-                "title": six.text_type(graph.title),
-                "curves": graph.export(rrdfile, start, end)
-            }
+            if graphic is None or graphic == graph.display_name:
+                result[graph.display_name] = {
+                    "title": graph.title,
+                    "series": graph.export(rrdfile, start, end)
+                }
         return result
 
 
@@ -246,10 +242,9 @@ class MailTraffic(GraphicSet):
             raise exceptions.PermDeniedException
         return results[0].name
 
-    def get_file_name(self, request):
+    def get_file_name(self, user, searchq):
         """Retrieve file name according to user and args."""
-        searchq = request.GET.get("searchquery", None)
-        return self._check_domain_access(request.user, searchq)
+        return self._check_domain_access(user, searchq)
 
 
 class AccountCreationGraphic(Graphic):
diff --git a/modoboa/urls_api_v2.py b/modoboa/urls_api_v2.py
index c215bee21..57695e43f 100644
--- a/modoboa/urls_api_v2.py
+++ b/modoboa/urls_api_v2.py
@@ -21,6 +21,7 @@ urlpatterns = [
     path('', include("modoboa.limits.urls_api")),
     path('', include("modoboa.relaydomains.urls_api")),
     path('', include("modoboa.dnstools.api.v2.urls")),
+    path('', include("modoboa.maillog.api.v2.urls")),
 ]
 
 urlpatterns += exts_pool.get_urls(category="api")