#
# Author: Chris Koeritz
-#export WORKDIR="$( \cd "$(\dirname "$0")" && \pwd )" # obtain the script's working directory.
-#export FEISTY_MEOW_APEX="$( \cd "$WORKDIR/../.." && \pwd )"
+# removes a full domain from the DNS.
+function remove_domain_file()
+{
+ local domain_name="$1"; shift
-#source "$FEISTY_MEOW_APEX/scripts/core/launch_feisty_meow.sh"
+ local domain_file="/etc/bind/${domain_name}.conf"
+ if [ -f "$domain_file" ]; then
+ # don't destroy, just shuffle.
+ \mv -f "$domain_file" "/tmp/$(basename ${domain_file})-old-${RANDOM}"
+ test_or_die "removing domain file: $domain_file"
+ fi
+}
# creates a totally new domain config file for DNS.
function write_new_domain_file()
test_or_die "setting ownership on: $domain_file"
}
+#hmmm: move this chomper to core!
+
+# given a filename and a string to seek and a number of lines, then this
+# function will remove the first occurrence of a line in the file that
+# matches the string, and it will also axe the next N lines as specified.
+function create_chomped_copy_of_file()
+{
+ local filename="$1"; shift
+ local seeker="$1"; shift
+ local numlines=$1; shift
+
+echo into create_chomped_copy...
+var filename seeker numlines
+
+ # make a backup first, oy.
+ \cp -f "$filename" "$filename.bkup-${RANDOM}"
+ test_or_die "backing up file: $filename"
+
+ # make a temp file to write to before we move file into place in bind.
+ local new_version="/tmp/$(basename ${filename}).bkup-${RANDOM}"
+ \rm -f "$new_version"
+ test_or_die "cleaning out new version of file from: $new_version"
+
+ local line
+ local skip_count=0
+ while read line; do
+ # don't bother looking at the lines if we're already in skip mode.
+ if [[ $skip_count == 0 ]]; then
+ # find the string they're seeking.
+ if [[ ! "$line" =~ .*${seeker}.* ]]; then
+ # no match.
+ echo "$line" >> "$new_version"
+ else
+ # a match! start skipping. we will delete this line and the next N lines.
+ ((skip_count++))
+echo first skip count is now $skip_count
+ fi
+ else
+ # we're already skipping. let's keep going until we hit the limit.
+ ((skip_count++))
+echo ongoing skip count is now $skip_count
+ if (( $skip_count > $numlines )); then
+ echo "Done skipping, and back to writing output file."
+ skip_count=0
+ fi
+ fi
+ done < "$filename"
+
+#put the file back into place.
+echo file we created looks like this:
+filedump "$new_version"
+
+echo bailing
+exit 1
+
+ \mv "$new_version" "$filename"
+ test_or_die "moving the new version into place in: $filename"
+
+}
+
+# takes a zone back out of the local conf file for bind
+function remove_zone_for_domain()
+{
+ local domain_name="$1"; shift
+
+ local domain_file="/etc/bind/${domain_name}.conf"
+
+ # eat the zone file definition. this will botch up badly if more text was added
+ # or the zone info shrank.
+ create_chomped_copy_of_file "/etc/bind/named.conf.local" "zone.*${domain_name}" 6
+
+# \cp -f "$domain_file" "$domain_file.bkup-${RANDOM}"
+# test_or_die "backing up domain file: $domain_file"
+#
+# # temp file to write to before we move file into place in bind.
+# local new_version="/tmp/$domain_file.bkup-${RANDOM}"
+# \rm -f "$new_version"
+# test_or_die "cleaning out new version of domain file from: $new_version"
+#
+# local line
+# local skip_count=0
+# while read line; do
+# # don't bother looking at the lines if we're already in skip mode.
+# if [[ $skip_count == 0 ]]; then
+# # find the zone for the domain.
+# if [[ ! "$line" =~ *"zone \"${domain_name}\""* ]]; then
+# echo "$line" >> "$new_version"
+# else
+# # start skipping. we will delete this line and the next 6 lines.
+# ((skip_count++))
+#echo first skip count is now $skip_count
+# fi
+# else
+# # we're already skipping. let's keep going until we hit the limit.
+# ((skip_count++))
+# if [[ $skip_count >= 6 ]]; then
+# echo "Done skipping, and back to writing output file."
+# skip_count=0
+# fi
+# fi
+# done < "$domain_file"
+#
+##put the file back into place.
+#echo file we created looks like this:
+#filedump "$new_version"
+#
+#echo bailing
+#exit 1
+#
+# \mv "$new_version" "$domain_file"
+# test_or_die "moving the new version into place in: $domain_file"
+
+}
+
# hooks up a new config file into bind's list of zones.
function add_zone_for_new_domain()
{
# keep ownership for the real user.
chown "$(logname):$(logname)" /etc/bind/named.conf.local
test_or_die "setting ownership on: /etc/bind/named.conf.local"
+}
+
+# zaps a subdomain out of the containing domain file.
+function remove_subdomain()
+{
+ local old_domain="$1"; shift
+
+ # split up the full domain name into subdomain portion and containing domain.
+ local subdomain="${old_domain%.*.*}"
+ local containing_domain="${old_domain#*.}"
+
+ echo "removing subdomain $subdomain from containing domain $containing_domain"
+#hmmm: other functions could use that level of clarity in their logging.
+
+ local domain_file="/etc/bind/${containing_domain}.conf"
+ # see if config file already exists; if not, complain.
+ if [ ! -f "$domain_file" ]; then
+ echo "The domain configuration file for $old_domain is missing."
+ echo "It should already be present in: $domain_file"
+ echo "We cannot remove a subdomain if the containing domain isn't there."
+ exit 1
+ fi
+
+ # see if subdomain already present in config.
+ if [ ! $(grep -q "$old_domain" "$domain_file") ]; then
+ echo "The subdomain $subdomain is already missing from the domain"
+ echo "configuration file: $domain_file"
+ echo "Our work is apparently done for removing it."
+ return 0
+ fi
+ create_chomped_copy_of_file "$domain_file" \
+ "${subdomain}.*${containing_domain} *IN *A *${IP_ADDRESS}" 1
}
# adds a new subdomain under a containing domain.
projects / feisty_meow.git / blobdiff