nginx_ua_block_pleroma_rejects: Don't filter out wildcard domains.

nginx_ua_block_pleroma_rejects.sh

@@ -4,10 +4,10 @@
 # Save the output to a file and include it in an nginx configuration file. Then
 # add `if ($blockedagent) { return 403; }` to your server blocks.
 
-# Version: 2019-08-17_2
+# Version: 2019-08-17_3
 
 
-function get_domains()          # Outputs domains, separated by newline.
+function get_domains()          # Output domains, separated by newline.
 {
     local instance="${1}"
     local nodeinfo=$(curl -s "https://${instance}/nodeinfo/2.1.json")
@@ -17,14 +17,15 @@ function get_domains()          # Outputs domains, separated by newline.
     sed -e 's/\[//' -e 's/\]//' -e 's/"//g' -e 's/,/\n/g' <<<"${domains_json}"
 }
 
-function print_entry()
+function print_entry()          # Output map entry.
 {
     local domain="${1}"
-    # Filter out wildcard domains.
-    if ! [[ "${domain}" =~ "\*" ]]; then
-        domain=$(sed 's/\./\\./g' <<<${domain})
-        echo "    ~*${domain} 1;"
-    fi
+
+    # Transform strings to regular expressions.
+    domain=$(sed 's/\./\\./g' <<<${domain}) # . → \.
+    domain=$(sed 's/\*/.*/g' <<<${domain})  # * → .*
+
+    echo "    ~*${domain} 1;"
 }
 
 function main()
@@ -33,7 +34,8 @@ function main()
 
     if [[ -z "${instance}" ]]; then
         echo "Usage: ${ZSH_ARGZERO} instance" >&2
-        echo "       ${ZSH_ARGZERO} instance > /etc/nginx/useragents_fedi.rules"
+        echo "       ${ZSH_ARGZERO} instance" \
+             "> /etc/nginx/useragents_fedi.rules" >&2
         return 1
     fi
     if ! command -v curl > /dev/null; then