Email rule based on subject text

locale/de/freedombone-addemail.json

 {
-    "${PROJECT_NAME}-addemail -u [username] -e [email address] -g [group name] --public [yes|no]": ""
+    "${PROJECT_NAME}-addemail -u [username] -e [email address] -s [subject text] -g [group name] --public [yes|no]": ""
 }

locale/de/freedombone-controlpanel-user.json

     "No email address was given": "",
     "No folder name was given": "",
     "Email rule for $RULE_EMAIL was added": "",
+    "When email arrives with subject containing:": "",
+    "No subject text was given": "",
+    "Email rule for subject '$RULE_SUBJECT' was added": "",
     "Block or unblock emails from a given address": "",
     "Block it:": "",
     "Block an email": "",
     "Change Email Filtering Rules": "",
     "Choose an operation:": "",
     "Add yourself to a mailing list": "",
-    "Add an email rule": "",
+    "Add an email rule for an address": "",
+    "Add an email rule for a subject": "",
     "Block or unblock an email address": "",
     "Block or unblock email with subject text": "",
     "Back to main menu": "",

locale/es/freedombone-addemail.json

 {
-    "${PROJECT_NAME}-addemail -u [username] -e [email address] -g [group name] --public [yes|no]": ""
+    "${PROJECT_NAME}-addemail -u [username] -e [email address] -s [subject text] -g [group name] --public [yes|no]": ""
 }

locale/es/freedombone-controlpanel-user.json

     "No email address was given": "",
     "No folder name was given": "",
     "Email rule for $RULE_EMAIL was added": "",
+    "When email arrives with subject containing:": "",
+    "No subject text was given": "",
+    "Email rule for subject '$RULE_SUBJECT' was added": "",
     "Block or unblock emails from a given address": "",
     "Block it:": "",
     "Block an email": "",
     "Change Email Filtering Rules": "",
     "Choose an operation:": "",
     "Add yourself to a mailing list": "",
-    "Add an email rule": "",
+    "Add an email rule for an address": "",
+    "Add an email rule for a subject": "",
     "Block or unblock an email address": "",
     "Block or unblock email with subject text": "",
     "Back to main menu": "",

locale/fr/freedombone-addemail.json

 {
-    "${PROJECT_NAME}-addemail -u [username] -e [email address] -g [group name] --public [yes|no]": ""
+    "${PROJECT_NAME}-addemail -u [username] -e [email address] -s [subject text] -g [group name] --public [yes|no]": ""
 }

locale/fr/freedombone-controlpanel-user.json

     "No email address was given": "",
     "No folder name was given": "",
     "Email rule for $RULE_EMAIL was added": "",
+    "When email arrives with subject containing:": "",
+    "No subject text was given": "",
+    "Email rule for subject '$RULE_SUBJECT' was added": "",
     "Block or unblock emails from a given address": "",
     "Block it:": "",
     "Block an email": "",
     "Change Email Filtering Rules": "",
     "Choose an operation:": "",
     "Add yourself to a mailing list": "",
-    "Add an email rule": "",
+    "Add an email rule for an address": "",
+    "Add an email rule for a subject": "",
     "Block or unblock an email address": "",
     "Block or unblock email with subject text": "",
     "Back to main menu": "",

src/freedombone-addemail

 
 MYUSERNAME=$USER
 EMAILADDRESS=
+SUBJECT_TEXT=
 GROUP_NAME=
 PUBLIC='no'
 
 function show_help {
     echo ''
-    echo $"${PROJECT_NAME}-addemail -u [username] -e [email address] -g [group name] --public [yes|no]"
+    echo $"${PROJECT_NAME}-addemail -u [username] -e [email address] -s [subject text] -g [group name] --public [yes|no]"
     echo ''
     exit 0
 }
     shift
     EMAILADDRESS="$1"
     ;;
+    -s|--subject)
+    shift
+    SUBJECT_TEXT="$1"
+    ;;
     -g|--group)
     shift
     GROUP_NAME="$1"
 shift
 done
 
-if ! [[ $MYUSERNAME && $EMAILADDRESS && $GROUP_NAME ]]; then
+if ! [[ $MYUSERNAME && $GROUP_NAME ]]; then
     show_help
 fi
 
+if [ ${#EMAILADDRESS} -lt 2 ]; then
+    if [ ${#SUBJECT_TEXT} -lt 2 ]; then
+        show_help
+    fi
+fi
+
 MUTTRC=/home/$MYUSERNAME/.muttrc
 PM=/home/$MYUSERNAME/.procmailrc
 LISTDIR=/home/$MYUSERNAME/Maildir/$GROUP_NAME
 
+proc_rule="  * ^From:.*$EMAILADDRESS"
+proc_comment="# Email rule for $EMAILADDRESS -> $GROUP_NAME"
+if [ ${#SUBJECT_TEXT} -gt 0 ]; then
+    proc_rule="  * ^From:.*$EMAILADDRESS"
+    proc_comment="# Email rule for '$SUBJECT_TEXT' -> $GROUP_NAME"
+fi
+
 if [ ! -d "$LISTDIR" ]; then
     mkdir -m 700 $LISTDIR
     mkdir -m 700 $LISTDIR/tmp
     mkdir -m 700 $LISTDIR/cur
 fi
 chown -R $MYUSERNAME:$MYUSERNAME $LISTDIR
-if ! grep -q "Email rule for $EMAILADDRESS -> $GROUP_NAME" $PM; then
+if ! grep -q "$proc_comment" $PM; then
     if [[ $PUBLIC != "yes" ]]; then
         # private emails go after the encryption stage
         echo '' >> $PM
-        echo "# Email rule for $EMAILADDRESS -> $GROUP_NAME" >> $PM
+        echo "$proc_comment" >> $PM
         echo ":0" >> $PM
-        echo "  * ^From:.*$EMAILADDRESS" >> $PM
+        echo "$proc_rule" >> $PM
         echo "$LISTDIR/new" >> $PM
         echo "# End of rule" >> $PM
     else
-        # public emails are copied before hte encryption stage
+        # public emails are copied before the encryption stage
         if ! grep -q '# encrypt' $PM; then
             echo '' >> $PM
-            echo "# Email rule for $EMAILADDRESS -> $GROUP_NAME" >> $PM
+            echo "$proc_comment" >> $PM
             echo ":0" >> $PM
-            echo "  * ^From:.*$EMAILADDRESS" >> $PM
+            echo "$proc_rule" >> $PM
             echo "$LISTDIR/new" >> $PM
             echo "# End of rule" >> $PM
         else
-            filter=$(echo "# Email rule for $EMAILADDRESS -> $GROUP_NAME\n:0\n  * ^From:.*$EMAILADDRESS\n$LISTDIR/new\n# End of rule\n")
+            filter=$(echo "$proc_comment\n:0\n${proc_rule}\n$LISTDIR/new\n# End of rule\n")
             sed -i "/# encrypt/i ${filter}" $PM
         fi
     fi
     chown $MYUSERNAME:$MYUSERNAME $PM
 fi
+
 if [ ! -f "$MUTTRC" ]; then
   cp /etc/Muttrc $MUTTRC
   chown $MYUSERNAME:$MYUSERNAME $MUTTRC
 fi
+
 PROCMAILLOG=/home/$MYUSERNAME/log
 if [ ! -d $PROCMAILLOG ]; then
   mkdir $PROCMAILLOG
   chown -R $MYUSERNAME:$MYUSERNAME $PROCMAILLOG
 fi
+
 MUTT_MAILBOXES=$(grep "mailboxes =" $MUTTRC)
 if [[ $MUTT_MAILBOXES != *$GROUP_NAME* ]]; then
   if ! grep -q "=$GROUP_NAME" $MUTTRC; then

src/freedombone-controlpanel-user

            --msgbox $"$LIST_NAME list was added" 6 40
 }
 
-function email_rule {
+function email_rule_address {
     data=$(tempfile 2>/dev/null)
     trap "rm -f $data" 0 1 2 5 15
     dialog --backtitle $"Freedombone User Control Panel" \
            --msgbox $"Email rule for $RULE_EMAIL was added" 6 40
 }
 
+function email_rule_subject {
+    data=$(tempfile 2>/dev/null)
+    trap "rm -f $data" 0 1 2 5 15
+    dialog --backtitle $"Freedombone User Control Panel" \
+           --title $"Create an email rule" \
+           --form "\n" 9 65 4 \
+              $"When email arrives with subject containing:" 1 1 "" 1 35 24 28 \
+              $"Move to folder:" 2 1 "" 2 35 24 28 \
+              $"Public:" 3 1 $"no" 3 35 4 25 \
+              2> $data
+    sel=$?
+    case $sel in
+        1) return;;
+        255) return;;
+    esac
+    RULE_SUBJECT=$(cat $data | sed -n 1p)
+    RULE_FOLDER=$(cat $data | sed -n 2p)
+    RULE_PUBLIC=$(cat $data | sed -n 3p)
+
+    if [ ${#RULE_PUBLIC} -lt 1 ]; then
+        RULE_PUBLIC='no'
+    fi
+    if [[ $RULE_PUBLIC == $'y' || $RULE_PUBLIC == $'Y' || $RULE_PUBLIC == $'true' || $RULE_PUBLIC == $'True' || $RULE_PUBLIC == $'yes' || $RULE_PUBLIC == $'Yes' || $RULE_PUBLIC == $'YES' ]]; then
+        RULE_PUBLIC='yes'
+    else
+        RULE_PUBLIC='no'
+    fi
+    if [ ${#RULE_SUBJECT} -lt 2 ]; then
+        dialog --title $"Create an email rule" \
+               --msgbox $"No subject text was given" 6 40
+        return
+    fi
+    if [ ${#RULE_FOLDER} -lt 2 ]; then
+        dialog --title $"Create an email rule" \
+               --msgbox $"No folder name was given" 6 40
+        return
+    fi
+
+    ${PROJECT_NAME}-addemail -u $USER -s "$RULE_SUBJECT" \
+                         -g "$RULE_FOLDER" --public $RULE_PUBLIC
+    dialog --title $"Create an email rule" \
+           --msgbox $"Email rule for subject '$RULE_SUBJECT' was added" 6 40
+}
+
 function block_unblock_email {
     blockstr=$"Block or unblock emails from a given address"
     data=$(tempfile 2>/dev/null)
         trap "rm -f $data" 0 1 2 5 15
         dialog --backtitle $"Freedombone User Control Panel" \
                --title $"Change Email Filtering Rules" \
-               --radiolist $"Choose an operation:" 13 70 6 \
+               --radiolist $"Choose an operation:" 14 70 7 \
                1 $"Add yourself to a mailing list" off \
                2 $"Remove yourself from a mailing list" off \
-               3 $"Add an email rule" off \
-               4 $"Block or unblock an email address" off \
-               5 $"Block or unblock email with subject text" off \
-               6 $"Back to main menu" on 2> $data
+               3 $"Add an email rule for an address" off \
+               4 $"Add an email rule for a subject" off \
+               5 $"Block or unblock an email address" off \
+               6 $"Block or unblock email with subject text" off \
+               7 $"Back to main menu" on 2> $data
         sel=$?
         case $sel in
             1) break;;
         case $(cat $data) in
             1) add_to_mailing_list;;
             2) remove_user_from_mailing_list;;
-            3) email_rule;;
-            4) block_unblock_email;;
-            5) block_unblock_subject;;
-            6) break;;
+            3) email_rule_address;;
+            4) email_rule_subject;;
+            5) block_unblock_email;;
+            6) block_unblock_subject;;
+            7) break;;
         esac
     done
 }