From cf83fd95a64d2b669b2d1277663e1fcd0d143866 Mon Sep 17 00:00:00 2001
From: Tom Kralidis <tomkralidis@gmail.com>
Date: Sat, 11 May 2019 08:04:13 -0400
Subject: [PATCH] add HTML pages for processes, add raw mode option for process
 execution

---
 pygeoapi/api.py                    | 30 +++++++++++++++++-
 pygeoapi/templates/collection.html |  6 ++--
 pygeoapi/templates/process.html    | 50 ++++++++++++++++++++++++++++++
 pygeoapi/templates/processes.html  | 37 ++++++++++++++++++++++
 pygeoapi/templates/root.html       |  4 +++
 pygeoapi/util.py                   | 20 ++++++++++++
 6 files changed, 143 insertions(+), 4 deletions(-)
 create mode 100644 pygeoapi/templates/process.html
 create mode 100644 pygeoapi/templates/processes.html

diff --git a/pygeoapi/api.py b/pygeoapi/api.py
index 5eacfbb..f373ce2 100644
--- a/pygeoapi/api.py
+++ b/pygeoapi/api.py
@@ -38,6 +38,7 @@ from pygeoapi import __version__
 from pygeoapi.log import setup_logger
 from pygeoapi.plugin import load_plugin, PLUGINS
 from pygeoapi.provider.base import ProviderConnectionError, ProviderQueryError
+from pygeoapi.util import str2bool
 
 LOGGER = logging.getLogger(__name__)
 
@@ -586,6 +587,16 @@ class API(object):
 
         headers_ = HEADERS.copy()
 
+        format_ = check_format(args, headers)
+
+        if format_ is not None and format_ not in FORMATS:
+            exception = {
+                'code': 'InvalidParameterValue',
+                'description': 'Invalid format'
+            }
+            LOGGER.error(exception)
+            return headers_, 400, json.dumps(exception)
+
         processes_config = self.config['processes']
 
         if process is not None:
@@ -612,6 +623,17 @@ class API(object):
                 'processes': processes
             }
 
+        if format_ == 'html':  # render
+            headers_['Content-Type'] = 'text/html'
+            if process is not None:
+                response = _render_j2_template(self.config, 'process.html',
+                                               p.metadata)
+            else:
+                response = _render_j2_template(self.config, 'processes.html',
+                                               {'processes': processes})
+
+            return headers_, 200, response
+
         return headers_, 200, json.dumps(response)
 
     def execute_process(self, headers, args, data, process):
@@ -656,7 +678,13 @@ class API(object):
 
         try:
             outputs = p.execute(data_dict)
-            response['outputs'] = outputs
+            m = p.metadata
+            if 'raw' in args and str2bool(args['raw']):
+                headers_['Content-Type'] = \
+                    m['outputs'][0]['output']['formats'][0]['mimeType']
+                response = outputs
+            else:
+                response['outputs'] = outputs
             return headers_, 201, json.dumps(response)
         except Exception as err:
             exception = {
diff --git a/pygeoapi/templates/collection.html b/pygeoapi/templates/collection.html
index f7adc1f..c652fd8 100644
--- a/pygeoapi/templates/collection.html
+++ b/pygeoapi/templates/collection.html
@@ -6,11 +6,11 @@
 {% endblock %}
 {% block body %}
     <section id="collections" itemprop="dataset" itemscope itemtype="http://schema.org/Dataset">
-      <meta  itemprop="includedInDataCatalog" content="{{ config['server']['url'] }}" />
+      <meta itemprop="includedInDataCatalog" content="{{ config['server']['url'] }}" />
       <h2 itemprop="name">{{ data['title'] }}</h2>
       <div itemprop="description">{{ data['description'] }}</div>
       <div itemprop="distribution" itemscope itemtype="http://schema.org/DataDownload">
-        <meta  itemprop="encodingFormat" content="text/html" />
+        <meta itemprop="encodingFormat" content="text/html" />
         <a title="Browse Items" itemprop="contentURL" href="{{ config['server']['url'] }}/collections/{{ data['name'] }}/items">
           Browse through the items of collection {{ data['title'] }}</a></div>
       <h2>Links</h2>
@@ -18,7 +18,7 @@
       {% for link in data['links'] %}
           <li itemprop="distribution" itemscope itemtype="http://schema.org/DataDownload">
             <a itemprop="contentURL" title="{{ link['rel'] }}" href="{{ link['href'] }}">
-            <span  itemprop="name">{{ link['title'] }}</span> (<span itemprop="encodingFormat">{{ link['type'] }}</span>)
+            <span itemprop="name">{{ link['title'] }}</span> (<span itemprop="encodingFormat">{{ link['type'] }}</span>)
             <meta itemprop="inLanguage" content="{{ link['hreflang'] }}" />
             </a></li>
       {% endfor %}
diff --git a/pygeoapi/templates/process.html b/pygeoapi/templates/process.html
new file mode 100644
index 0000000..bca4a01
--- /dev/null
+++ b/pygeoapi/templates/process.html
@@ -0,0 +1,50 @@
+{% extends "base.html" %}
+{% block title %}{{ super() }} {{ data['title'] }} {% endblock %}
+{% block crumbs %}{{ super() }} 
+/ <a href="../processes">Processes</a>
+/ <a href="./{{ data['id'] }}">{{ data['title'] }}</a>
+{% endblock %}
+{% block body %}
+    <section id="processes" itemprop="dataset" itemscope itemtype="http://schema.org/Dataset">
+      <meta itemprop="includedInDataCatalog" content="{{ config['server']['url'] }}" />
+      <h2 itemprop="name">{{ data['title'] }}</h2>
+      <div itemprop="description">{{ data['description'] }}</div>
+      <div itemprop="distribution" itemscope itemtype="http://schema.org/WebAPI">
+        <meta itemprop="encodingFormat" content="text/html" />
+      </div>
+      <div class="row">
+        <div class="col-sm-12 col-md-6">
+            <table class="striped">
+              <caption>Inputs</caption>
+              <thead>
+              <tr>
+                <th>Name</th>
+                <th>Description</th>
+              </tr>
+              </thead>
+              <tbody>
+                {% for input_ in data['inputs'] %}
+                <tr>
+                  <td itemprop="name" data-label="name">{{ input_['id'] }}</td>
+                  <td itemprop="title" data-label="title">{{ input_['title'] }}</td>
+                  <td itemprop="description" data-label="description">
+                    {{ input_['description'] | striptags | truncate }}
+                  </td>
+                </tr>
+                {% endfor %}
+              </tbody>
+            </table>
+        </div>
+      </div>
+      <h2>Links</h2>
+      <ul>
+      {% for link in data['links'] %}
+          <li itemprop="distribution" itemscope itemtype="http://schema.org/DataDownload">
+            <a itemprop="contentURL" title="{{ link['rel'] }}" href="{{ link['href'] }}">
+            <span itemprop="name">{{ link['title'] }}</span> (<span itemprop="encodingFormat">{{ link['type'] }}</span>)
+            <meta itemprop="inLanguage" content="{{ link['hreflang'] }}" />
+            </a></li>
+      {% endfor %}
+      </ul>
+    </section>
+{% endblock %}
diff --git a/pygeoapi/templates/processes.html b/pygeoapi/templates/processes.html
new file mode 100644
index 0000000..c7a7d15
--- /dev/null
+++ b/pygeoapi/templates/processes.html
@@ -0,0 +1,37 @@
+{% extends "base.html" %}
+{% block title %}{{ super() }} Processes {% endblock %}
+{% block crumbs %}{{ super() }} 
+/ <a href="./processes">Processes</a>
+{% endblock %}
+{% block body %}
+    <section id="processes">
+      <h2>Processes in this service</h2>
+
+      <div class="row">
+        <div class="col-sm-12 col-md-6">
+            <table class="striped">
+              <caption>Processes</caption>
+              <thead>
+              <tr>
+                <th>Name</th>
+                <th>Description</th>
+              </tr>
+              </thead>
+              <tbody>
+                {% for p in data['processes'] %}
+                <tr itemprop="dataset" itemscope itemtype="http://schema.org/WebAPI">
+                  <td itemprop="name" data-label="name">
+                    <meta itemprop="url" content="{{ config['server']['url'] }}/processes/{{ p['id'] }}" />
+                    <a title="{{ p['title'] | striptags | truncate }}" href="{{ config['server']['url'] }}/processes/{{ p['id'] }}">{{ p['title'] | striptags | truncate }}</a>
+                  </td>
+                  <td itemprop="description" data-label="description">
+                    {{ p['description'] | striptags | truncate }}
+                  </td>
+                </tr>
+                {% endfor %}
+              </tbody>
+            </table>
+        </div>
+      </div>
+    </section>
+{% endblock %}
diff --git a/pygeoapi/templates/root.html b/pygeoapi/templates/root.html
index b3ce77e..a180180 100644
--- a/pygeoapi/templates/root.html
+++ b/pygeoapi/templates/root.html
@@ -54,6 +54,10 @@
       <h2>Collections</h2>
       <a href="{{ config['server']['url'] }}/collections?f=html">View the collections in this service</a>
   </section>
+  <section id="processes">
+      <h2>Processes</h2>
+      <a href="{{ config['server']['url'] }}/processes?f=html">View the processes in this service</a>
+  </section>
   <section id="links">
     <h2>Links</h2>
     <ul>
diff --git a/pygeoapi/util.py b/pygeoapi/util.py
index 1ed638a..abeda93 100644
--- a/pygeoapi/util.py
+++ b/pygeoapi/util.py
@@ -47,3 +47,23 @@ def get_url(scheme, host, port, basepath):
     url = '{}{}'.format(url, basepath)
 
     return url
+
+
+def str2bool(value):
+    """
+    helper function to return Python boolean
+    type (source: https://stackoverflow.com/a/715468)
+
+    :param value: value to be evaluated
+
+    :returns: `bool` of whether the value is boolean-ish
+    """
+
+    value2 = False
+
+    if isinstance(value, bool):
+        value2 = value
+    else:
+        value2 = value.lower() in ('yes', 'true', 't', '1', 'on')
+
+    return value2