Add exception handling and logger in metadata provider

cps/metadata_provider/amazon.py

@@ -19,15 +19,20 @@
 import concurrent.futures
 import requests
 from bs4 import BeautifulSoup as BS  # requirement
+from typing import List, Optional
 
 try:
     import cchardet #optional for better speed
 except ImportError:
     pass
+from cps import logger
 from cps.services.Metadata import MetaRecord, MetaSourceInfo, Metadata
 #from time import time
 from operator import itemgetter
 
+log = logger.create()
+
+
 class Amazon(Metadata):
     __name__ = "Amazon"
     __id__ = "amazon"
@@ -46,12 +51,16 @@ class Amazon(Metadata):
 
     def search(
         self, query: str, generic_cover: str = "", locale: str = "en"
-    ):
+    ) -> Optional[List[MetaRecord]]:
         #timer=time()
-        def inner(link,index)->[dict,int]:
+        def inner(link,index) -> tuple[dict,int]:
             with self.session as session:
+                try:
                     r = session.get(f"https://www.amazon.com/{link}")
                     r.raise_for_status()
+                except Exception as e:
+                    log.warning(e)
+                    return
                 long_soup = BS(r.text, "lxml")  #~4sec :/
                 soup2 = long_soup.find("div", attrs={"cel_widget_id": "dpx-books-ppd_csm_instrumentation_wrapper"})
                 if soup2 is None:
@@ -107,11 +116,15 @@ class Amazon(Metadata):
 
         val = list()
         if self.active:
+            try:
                 results = self.session.get(
                     f"https://www.amazon.com/s?k={query.replace(' ', '+')}&i=digital-text&sprefix={query.replace(' ', '+')}"
                     f"%2Cdigital-text&ref=nb_sb_noss",
                     headers=self.headers)
                 results.raise_for_status()
+            except Exception as e:
+                    log.warning(e)
+                    return None
             soup = BS(results.text, 'html.parser')
             links_list = [next(filter(lambda i: "digital-text" in i["href"], x.findAll("a")))["href"] for x in
                           soup.findAll("div", attrs={"data-component-type": "s-search-result"})]

cps/metadata_provider/comicvine.py

@@ -21,8 +21,11 @@ from typing import Dict, List, Optional
 from urllib.parse import quote
 
 import requests
+from cps import logger
 from cps.services.Metadata import MetaRecord, MetaSourceInfo, Metadata
 
+log = logger.create()
+
 
 class ComicVine(Metadata):
     __name__ = "ComicVine"
@@ -46,10 +49,15 @@ class ComicVine(Metadata):
             if title_tokens:
                 tokens = [quote(t.encode("utf-8")) for t in title_tokens]
                 query = "%20".join(tokens)
+            try:
                 result = requests.get(
                     f"{ComicVine.BASE_URL}{query}{ComicVine.QUERY_PARAMS}",
                     headers=ComicVine.HEADERS,
                 )
+                result.raise_for_status()
+            except Exception as e:
+                log.warning(e)
+                return None
             for result in result.json()["results"]:
                 match = self._parse_search_result(
                     result=result, generic_cover=generic_cover, locale=locale

cps/metadata_provider/google.py

@@ -22,9 +22,12 @@ from urllib.parse import quote
 
 import requests
 
+from cps import logger
 from cps.isoLanguages import get_lang3, get_language_name
 from cps.services.Metadata import MetaRecord, MetaSourceInfo, Metadata
 
+log = logger.create()
+
 
 class Google(Metadata):
     __name__ = "Google"
@@ -45,7 +48,12 @@ class Google(Metadata):
             if title_tokens:
                 tokens = [quote(t.encode("utf-8")) for t in title_tokens]
                 query = "+".join(tokens)
+            try:
                 results = requests.get(Google.SEARCH_URL + query)
+                results.raise_for_status()
+            except Exception as e:
+                log.warning(e)
+                return None
             for result in results.json().get("items", []):
                 val.append(
                     self._parse_search_result(

cps/metadata_provider/lubimyczytac.py

@@ -27,9 +27,12 @@ from html2text import HTML2Text
 from lxml.html import HtmlElement, fromstring, tostring
 from markdown2 import Markdown
 
+from cps import logger
 from cps.isoLanguages import get_language_name
 from cps.services.Metadata import MetaRecord, MetaSourceInfo, Metadata
 
+log = logger.create()
+
 SYMBOLS_TO_TRANSLATE = (
     "öÖüÜóÓőŐúÚéÉáÁűŰíÍąĄćĆęĘłŁńŃóÓśŚźŹżŻ",
     "oOuUoOoOuUeEaAuUiIaAcCeElLnNoOsSzZzZ",
@@ -112,7 +115,12 @@ class LubimyCzytac(Metadata):
         self, query: str, generic_cover: str = "", locale: str = "en"
     ) -> Optional[List[MetaRecord]]:
         if self.active:
+            try:
                 result = requests.get(self._prepare_query(title=query))
+                result.raise_for_status()
+            except Exception as e:
+                log.warning(e)
+                return None
             root = fromstring(result.text)
             lc_parser = LubimyCzytacParser(root=root, metadata=self)
             matches = lc_parser.parse_search_results()
@@ -200,7 +208,12 @@ class LubimyCzytacParser:
     def parse_single_book(
         self, match: MetaRecord, generic_cover: str, locale: str
     ) -> MetaRecord:
+        try:
             response = requests.get(match.url)
+            response.raise_for_status()
+        except Exception as e:
+            log.warning(e)
+            return None
         self.root = fromstring(response.text)
         match.cover = self._parse_cover(generic_cover=generic_cover)
         match.description = self._parse_description()

cps/metadata_provider/scholar.py

@@ -28,8 +28,12 @@ try:
 except FakeUserAgentError:
     raise ImportError("No module named 'scholarly'")
 
+from cps import logger
 from cps.services.Metadata import MetaRecord, MetaSourceInfo, Metadata
 
+log = logger.create()
+
+
 class scholar(Metadata):
     __name__ = "Google Scholar"
     __id__ = "googlescholar"
@@ -44,7 +48,11 @@ class scholar(Metadata):
             if title_tokens:
                 tokens = [quote(t.encode("utf-8")) for t in title_tokens]
                 query = " ".join(tokens)
+            try:
                 scholar_gen = itertools.islice(scholarly.search_pubs(query), 10)
+            except Exception as e:
+                log.warning(e)
+                return None
             for result in scholar_gen:
                 match = self._parse_search_result(
                     result=result, generic_cover="", locale=locale

cps/search_metadata.py

@@ -130,6 +130,6 @@ def metadata_search():
                 if active.get(c.__id__, True)
             }
             for future in concurrent.futures.as_completed(meta):
-                data.extend([asdict(x) for x in future.result()])
+                data.extend([asdict(x) for x in future.result() if x])
     # log.info({'Time elapsed {}'.format(current_milli_time()-start)})
     return Response(json.dumps(data), mimetype="application/json")

cps/static/js/get_meta.js

@@ -92,6 +92,7 @@ $(function () {
                 data: {"query": keyword},
                 dataType: "json",
                 success: function success(data) {
+                    if (data.length) {
                         $("#meta-info").html("<ul id=\"book-list\" class=\"media-list\"></ul>");
                         data.forEach(function(book) {
                             var $book = $(templates.bookResult(book));
@@ -100,6 +101,10 @@ $(function () {
                             });
                             $("#book-list").append($book);
                         });
+                    }
+                    else {
+                        $("#meta-info").html("<p class=\"text-danger\">" + msg.no_result + "!</p>" + $("#meta-info")[0].innerHTML)
+                    }
                 },
                 error: function error() {
                     $("#meta-info").html("<p class=\"text-danger\">" + msg.search_error + "!</p>" + $("#meta-info")[0].innerHTML);