feat: remove empty lines from ssh_keys text area, and show helpful message

Signed-off-by: Leonidas Spyropoulos <artafinde@archlinux.org>

aurweb/util.py

@@ -192,7 +192,7 @@ def parse_ssh_key(string: str) -> Tuple[str, str]:
 
 def parse_ssh_keys(string: str) -> list[Tuple[str, str]]:
     """Parse a list of SSH public keys."""
-    return [parse_ssh_key(e) for e in string.splitlines()]
+    return [parse_ssh_key(e) for e in string.strip().splitlines(True) if e.strip()]
 
 
 def shell_exec(cmdline: str, cwd: str) -> Tuple[int, str, str]:

po/aurweb.pot

@@ -1398,6 +1398,10 @@ msgid ""
 "the Arch User Repository."
 msgstr ""
 
+#: templates/partials/account_form.html
+msgid "Specify multiple SSH Keys separated by new line, empty lines are ignored."
+msgstr ""
+
 #: template/account_edit_form.php
 msgid "SSH Public Key"
 msgstr ""

templates/partials/account_form.html

@@ -264,6 +264,13 @@
             <textarea id="id_ssh" name="PK"
                       rows="5" cols="30">{{ ssh_pks | join("\n") }}</textarea>
         </p>
+        <p>
+            <em>
+                {{
+                    "Specify multiple SSH Keys separated by new line, empty lines are ignored." | tr
+                }}
+            </em>
+        </p>
     </fieldset>
 
     <fieldset>

test/test_util.py

@@ -96,14 +96,37 @@ YbxDwGimZZslg0OZu9UzoAT6xEGyiZsqJkTMbRp1ZYIOv9jHCJxRuxxuN3fzxyT3xE69+vhq2/NJX\
 vTNJCD6JtMClxbIXW9q74nNqG+2SD/VQNMUz/505TK1PbY/4uyFfq5HquHJXQVCBll03FRerNHH2N\
 schFne6BFHpa48PCoZNH45wLjFXwUyrGU1HrNqh6ZPdRfBTrTOkgs+BKBxGNeV45aYUPu/cFBSPcB\
 fRSo6OFcejKc="""
+    assert_multiple_keys(pks)
+
+
+def test_parse_ssh_keys_with_extra_lines():
+    pks = """ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyN\
+TYAAABBBEURnkiY6JoLyqDE8Li1XuAW+LHmkmLDMW/GL5wY7k4/A+Ta7bjA3MOKrF9j4EuUTvCuNX\
+ULxvpfSqheTFWZc+g=
+
+
+
+
+ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABgQDmqEapFMh/ajPHnm1dBweYPeLOUjC0Ydp6uw7rB\
+S5KCggUVQR8WfIm+sRYTj2+smGsK6zHMBjFnbzvV11vnMqcnY+Sa4LhIAdwkbt/b8HlGaLj1hCWSh\
+a5b5/noeK7L+CECGHdvfJhpxBbhq38YEdFnCGbslk/4NriNcUp/DO81CXb1RzJ9GBFH8ivPW1mbe9\
+YbxDwGimZZslg0OZu9UzoAT6xEGyiZsqJkTMbRp1ZYIOv9jHCJxRuxxuN3fzxyT3xE69+vhq2/NJX\
+8aRsxGPL9G/XKcaYGS6y6LW4quIBCz/XsTZfx1GmkQeZPYHH8FeE+XC/+toXL/kamxdOQKFYEEpWK\
+vTNJCD6JtMClxbIXW9q74nNqG+2SD/VQNMUz/505TK1PbY/4uyFfq5HquHJXQVCBll03FRerNHH2N\
+schFne6BFHpa48PCoZNH45wLjFXwUyrGU1HrNqh6ZPdRfBTrTOkgs+BKBxGNeV45aYUPu/cFBSPcB\
+fRSo6OFcejKc=
+
+
+"""
+    assert_multiple_keys(pks)
+
+
+def assert_multiple_keys(pks):
     keys = util.parse_ssh_keys(pks)
     assert len(keys) == 2
-
     pfx1, key1, pfx2, key2 = pks.split()
     k1, k2 = keys
-
     assert pfx1 == k1[0]
     assert key1 == k1[1]
-
     assert pfx2 == k2[0]
     assert key2 == k2[1]