From 7528e38c8a412d9f56eba05b34d2f24f3471f21d Mon Sep 17 00:00:00 2001
From: spongebob33 <marc.cenon33@gmail.com>
Date: Fri, 26 Mar 2021 12:22:49 +0100
Subject: [PATCH] add core.ac.uk engine

---
 searx/engines/core.py | 63 +++++++++++++++++++++++++++++++++++++++++++
 searx/settings.yml    |  9 +++++++
 2 files changed, 72 insertions(+)
 create mode 100644 searx/engines/core.py

diff --git a/searx/engines/core.py b/searx/engines/core.py
new file mode 100644
index 000000000..99b4b524b
--- /dev/null
+++ b/searx/engines/core.py
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+"""
+
+Core Engine (science)
+
+"""
+
+from json import loads
+from datetime import datetime
+from urllib.parse import urlencode
+
+about = {
+    "website": 'https://core.ac.uk',
+    "wikidata_id": 'Q22661180',
+    "official_api_documentation": 'https://core.ac.uk/documentation/api/',
+    "use_official_api": True,
+    "require_api_key": True,
+    "results": 'JSON',
+}
+
+categories = ['science']
+
+paging = True
+nb_per_page = 20
+
+
+# apikey = ''
+apikey = 'MVBozuTX8QF9I1D0GviL5bCn2Ueat6NS'
+
+
+base_url = 'https://core.ac.uk:443/api-v2/search/'
+search_string = '{query}?page={page}&pageSize={nb_per_page}&apiKey={apikey}'
+
+
+def request(query, params):
+
+    search_path = search_string.format(
+        query=urlencode({'q': query}),
+        nb_per_page=nb_per_page,
+        page=params['pageno'],
+        apikey=apikey)
+
+    params['url'] = base_url + search_path
+    return params
+
+
+def response(resp):
+    results = []
+
+    json_data = loads(resp.text)
+    for result in json_data['data']:
+        time = result['_source']['publishedDate']
+        if time is None:
+            date = datetime.now()
+        else:
+            date = datetime.fromtimestamp(time / 1000)
+        results.append({
+            'url': result['_source']['urls'][0],
+            'title': result['_source']['title'],
+            'content': result['_source']['description'],
+            'publishedDate': date})
+
+    return results
diff --git a/searx/settings.yml b/searx/settings.yml
index 5e0b4cd7d..4217e5bfa 100644
--- a/searx/settings.yml
+++ b/searx/settings.yml
@@ -272,6 +272,15 @@ engines:
     categories : images
     shortcut : cce
 
+  - name : core.ac.uk
+    engine : core
+    categories : science
+    shortcut : cor
+    # get your API key from: https://core.ac.uk/api-keys/register/
+    # api_key : "xxxxxxxx"
+    # set api_key and comment out disabled ..
+    disabled: True
+
   - name : crossref
     engine : json_engine
     paging : True