local domain_file="/etc/bind/${domain_name}.conf"
if [ -f "$domain_file" ]; then
# don't destroy, just shuffle.
- \mv -f "$domain_file" "/tmp/${domain_file}-old-${RANDOM}"
+ \mv -f "$domain_file" "/tmp/$(basename ${domain_file})-old-${RANDOM}"
test_or_die "removing domain file: $domain_file"
+ else
+ echo "Did not see a domain file to remove: $domain_file"
fi
}
test_or_die "setting ownership on: $domain_file"
}
-#hmmm: move 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=$1; shift
-
- # make a backup first, oy.
- \cp -f "$filename" "$filename.bkup-${RANDOM}"
- test_or_die "backing up file: $filename"
-
- # make a temp file to write to before we move file into place in bind.
- local new_version="/tmp/${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: $filename"
-
-
-}
-
# takes a zone back out of the local conf file for bind
function remove_zone_for_domain()
{
# eat the zone file definition. this will botch up badly if more text was added
# or the zone info shrank.
- create_chomped_copy_of_file "$domain_file" "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: $domain_file"
-
+ create_chomped_copy_of_file "/etc/bind/named.conf.local" "zone.*${domain_name}" 6
}
# hooks up a new config file into bind's list of zones.
# 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 $containing_domain"
+
+ local domain_file="/etc/bind/${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" "${old_domain}" 2
}
# adds a new subdomain under a containing domain.
fi
# see if subdomain already present in config.
- if [ $(grep -q "$new_domain" "$domain_file") ]; then
+ if grep -q "$new_domain" "$domain_file"; then
echo "The subdomain $subdomain already seems to exist in the domain"
echo "configuration file: $domain_file"
- echo "Please edit the config file to remove the subdomain before trying"
- echo "to re-add the subdomain."
- exit 1
+ echo "We are considering our work done; if you want to modify the subdomain,"
+ echo "then please call remove_domain on it first."
+ return 0
fi
# append the new subdomain into the config file.
- echo "
-${subdomain}.${containing_domain}. IN A ${IP_ADDRESS}
+ echo "${subdomain}.${containing_domain}. IN A ${IP_ADDRESS}
IN HINFO \"linux server\" \"${DISTRO}\"
" >> /etc/bind/${containing_domain}.conf
projects / feisty_meow.git / blobdiff