Merge branch 'master' into shrtlnk

.github/CONTRIBUTING.md

@@ -4,6 +4,8 @@
 opened to market company APIs that offer paid solutions. This API list is not a marketing tool, but a tool to help the
 community build applications and use free, public APIs quickly and easily. Pull requests that are identified as marketing attempts will not be accepted.
 >
+> Please make sure the API you want to add has a full free access or at least a free tier before submitting.
+>
 > Thanks for understanding! :)
 
 ## Formatting
@@ -12,7 +14,7 @@ Current API entry format:
 
 | API | Description | Auth | HTTPS | CORS |
 | --- | --- | --- | --- | --- |
-| API Title(Link to API webpage) | Description of API | Does this API require authentication? * | Does the API support HTTPS? | Does the API support [CORS](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS)? * |
+| API Title(Link to API documentation) | Description of API | Does this API require authentication? * | Does the API support HTTPS? | Does the API support [CORS](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS)? * |
 
 Example entry:
 
@@ -33,6 +35,8 @@ Example entry:
 * `No` - _the API does not support CORS_
 * `Unknown` - _it is unknown if the API supports CORS_
 
+_Without proper [CORS configuration](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) an API will only be usable server side._
+
 Please continue to follow the alphabetical ordering that is in place per section. Each table column should be padded with one space on either side.
 
 If an API seems to fall into multiple categories, please place the listing within the section most in line with the services offered through the API. For example, the Instagram API is listed under `Social` since it is mainly a social network, even though it could also apply to `Photography`.

.github/PULL_REQUEST_TEMPLATE.md

-Thank you for taking the time to work on a Pull Request for this project!
-
-To ensure your PR is dealt with swiftly please check the following:
-
-- [ ] Your submissions are formatted according to the guidelines in the [contributing guide](CONTRIBUTING.md)
-- [ ] Your additions are ordered alphabetically
-- [ ] Your submission has a useful description
+<!-- Thank you for taking the time to work on a Pull Request for this project! -->
+<!-- To ensure your PR is dealt with swiftly please check the following: -->
+- [ ] My submission is formatted according to the guidelines in the [contributing guide](CONTRIBUTING.md)
+- [ ] My addition is ordered alphabetically
+- [ ] My submission has a useful description
 - [ ] The description does not end with punctuation
-- [ ] Each table column should be padded with one space on either side
-- [ ] You have searched the repository for any relevant issues or pull requests
-- [ ] Any category you are creating has the minimum requirement of 3 items
+- [ ] Each table column is padded with one space on either side
+- [ ] I have searched the repository for any relevant issues or pull requests
+- [ ] Any category I am creating has the minimum requirement of 3 items
 - [ ] All changes have been [squashed][squash-link] into a single commit
 
 [squash-link]: <https://github.com/todotxt/todo.txt-android/wiki/Squash-All-Commits-Related-to-a-Single-Issue-into-a-Single-Commit>

.github/workflows/test.yml

 name: "Run tests"
 
 on:
-  - push
-  - pull_request
+  schedule:
+    - cron:  '0 0 * * *'
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
 
 env:
   FORMAT_FILE: README.md

.github/workflows/validate_links.yml

+name: "Validate links"
+
+on:
+  schedule:
+    - cron:  '0 0 * * *'
+  push:
+    branches:
+      - master
+
+env:
+  FORMAT_FILE: README.md
+
+jobs:
+  test:
+    name: 'Validate links'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Validate all links from README.md
+        run: build/validate_links.py ${FORMAT_FILE}

build/requirements.txt

 flake8>=3.5.0
-httplib2==0.9.2
+httplib2==0.18.0

build/validate_links.py

@@ -11,9 +11,9 @@ def parse_links(filename):
     with open(filename) as fp:
         data = fp.read()
     raw_links = re.findall(
-        'http[s]?://(?:[a-zA-Z]|[0-9]|[$-_@.&+]|[!*\(\),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+',
+        '((?:https?://|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:\'\".,<>?«»“”‘’]))',
         data)
-    links = [raw_link.replace(')', '') for raw_link in raw_links]
+    links = [raw_link[0] for raw_link in raw_links]
     return links
 
 
@@ -22,9 +22,9 @@ def validate_links(links):
     print('Validating {} links...'.format(len(links)))
     errors = []
     for link in links:
-        h = httplib2.Http(disable_ssl_certificate_validation=True, timeout=5)
+        h = httplib2.Http(disable_ssl_certificate_validation=True, timeout=25)
         try:
-            resp = h.request(link, 'HEAD')
+            resp = h.request(link, headers={'user-agent': 'python-httplib2/0.18.0'})
             code = int(resp[0]['status'])
             # check if status code is a client or server error
             if code >= 404:
@@ -33,9 +33,14 @@ def validate_links(links):
             errors.append("TMO: " + link)
         except socket.error as socketerror:
             errors.append("SOC: {} : {}".format(socketerror, link))
+        except Exception as e:
+            # Ignore some exceptions which are not actually errors.
+            # The list below should be extended with other exceptions in the future if needed
+            if ((-1 != str(e).find("Content purported to be compressed with gzip but failed to decompress.")) and 
+                (-1 != str(e).find("[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:852)"))) :
+                errors.append("ERR: {} : {}".format(e, link))
     return errors
 
-
 if __name__ == "__main__":
     num_args = len(sys.argv)
     if num_args < 2: