eget: improve --get-filename

eget

@@ -1461,27 +1461,40 @@ url_get_filename()
 
     ! is_httpurl "$URL" && basename "$URL" && return
 
+    local filename
+
     # See https://www.cpcwood.com/blog/5-aws-s3-utf-8-content-disposition
     # https://www.rfc-editor.org/rfc/rfc6266
     local cd="$(url_get_header "$URL" "Content-Disposition")"
     if echo "$cd" | grep -qi "filename\*= *UTF-8" ; then
         #Content-Disposition: attachment; filename="unityhub-amd64-3.3.0.deb"; filename*=UTF-8''"unityhub-amd64-3.3.0.deb"
         #Content-Disposition: attachment; filename*=UTF-8''t1client-standalone-4.5.28.0-1238402-Release.deb; filename="t1client-standalone-4.5.28.0-1238402-Release.deb"
-        echo "$cd" | sed -e "s|.*filename\*= *UTF-8''||i" -e 's|^"||' -e 's|";$||' -e 's|"$||' -e 's|; filename=.*||'
-        return
+        filename="$(echo "$cd" | sed -e "s|.*filename\*= *UTF-8''||i" -e 's|^"||' -e 's|";$||' -e 's|"$||' -e 's|; filename=.*||')"
+        [ "$filename" != "unspecified" ] && echo "$filename" && return
     fi
     if echo "$cd" | grep -qi "filename=" ; then
         #Content-Disposition: attachment; filename=postman-linux-x64.tar.gz
         #content-disposition: attachment; filename="code-1.77.1-1680651749.el7.x86_64.rpm"
-        echo "$cd" | sed -e 's|.*filename= *||i' -e 's|^"||' -e 's|";.*||' -e 's|"$||'
-        return
+        filename="$(echo "$cd" | sed -e 's|.*filename= *||i' -e 's|^"||' -e 's|";.*||' -e 's|"$||')"
+        [ "$filename" != "unspecified" ] && echo "$filename" && return
     fi
 
     local loc="$(url_get_raw_real_url "$URL")"
     if is_strange_url "$loc" ; then
         loc="$(echo "$loc" | sed -e "s|\?.*||")"
     fi
-    basename "$loc"
+
+    # hack for redirect to the main page
+    if dirname "$loc" | grep -q "^http" ; then
+        loc=""
+    fi
+
+    local loc="$URL"
+    if is_strange_url "$loc" ; then
+        loc="$(echo "$loc" | sed -e "s|\?.*||")"
+    fi
+
+    [ -n "$loc" ] && basename "$loc"
 }
 
 fi