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137 lines
4.4 KiB
137 lines
4.4 KiB
#!/bin/sh
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# Check inputs
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[ -z "$username" ] && write_log 14 "Configuration error! [User name] cannot be empty"
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[ -z "$password" ] && write_log 14 "Configuration error! [Password] cannot be empty"
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# Check external tools
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[ -n "$CURL_SSL" ] || write_log 13 "Dnspod communication require cURL with SSL support. Please install"
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[ -n "$CURL_PROXY" ] || write_log 13 "cURL: libcurl compiled without Proxy support"
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# Declare variables
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#local __URLBASE __HOST __DOMAIN __TYPE __CMDBASE __POST __POST1 __RECIP __RECID __TTL
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__URLBASE="https://dnsapi.cn"
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# Get host and domain from $domain
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[ "${domain:0:2}" = "@." ] && domain="${domain/./}" # host
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[ "$domain" = "${domain/@/}" ] && domain="${domain/./@}" # host with no sperator
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__HOST="${domain%%@*}"
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__DOMAIN="${domain#*@}"
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[ -z "$__HOST" -o "$__HOST" = "$__DOMAIN" ] && __HOST=@
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# Set record type
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[ $use_ipv6 = 0 ] && __TYPE=A || __TYPE=AAAA
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# Build base command
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build_command() {
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__CMDBASE="$CURL -Ss"
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# bind host/IP
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if [ -n "$bind_network" ]; then
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local __DEVICE
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network_get_physdev __DEVICE $bind_network || write_log 13 "Can not detect local device using 'network_get_physdev $bind_network' - Error: '$?'"
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write_log 7 "Force communication via device '$__DEVICE'"
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__CMDBASE="$__CMDBASE --interface $__DEVICE"
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fi
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# Force IP version
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if [ $force_ipversion = 1 ]; then
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[ $use_ipv6 = 0 ] && __CMDBASE="$__CMDBASE -4" || __CMDBASE="$__CMDBASE -6"
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fi
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# Set CA
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if [ $use_https = 1 ]; then
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if [ "$cacert" = IGNORE ]; then
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__CMDBASE="$__CMDBASE --insecure"
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elif [ -f "$cacert" ]; then
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__CMDBASE="$__CMDBASE --cacert $cacert"
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elif [ -d "$cacert" ]; then
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__CMDBASE="$__CMDBASE --capath $cacert"
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elif [ -n "$cacert" ]; then
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write_log 14 "No valid certificate(s) found at '$cacert' for HTTPS communication"
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fi
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fi
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# Set if no proxy (might be an error with .wgetrc or env)
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[ -z "$proxy" ] && __CMDBASE="$__CMDBASE --noproxy '*'"
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__CMDBASE="$__CMDBASE -d"
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}
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# Dnspod API
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dnspod_transfer() {
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__CNT=0
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case "$1" in
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0) __A="$__CMDBASE '$__POST' $__URLBASE/Record.List" ;;
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1) __A="$__CMDBASE '$__POST1' $__URLBASE/Record.Create" ;;
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2) __A="$__CMDBASE '$__POST1&record_id=$__RECID&ttl=$__TTL' $__URLBASE/Record.Modify" ;;
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esac
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write_log 7 "#> $__A"
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while ! __TMP=$(eval $__A 2>&1); do
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write_log 3 "[$__TMP]"
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if [ $VERBOSE -gt 1 ]; then
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write_log 4 "Transfer failed - detailed mode: $VERBOSE - Do not try again after an error"
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return 1
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fi
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__CNT=$(($__CNT + 1))
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[ $retry_count -gt 0 -a $__CNT -gt $retry_count ] && write_log 14 "Transfer failed after $retry_count retries"
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write_log 4 "Transfer failed - $__CNT Try again in $RETRY_SECONDS seconds"
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sleep $RETRY_SECONDS &
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PID_SLEEP=$!
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wait $PID_SLEEP
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PID_SLEEP=0
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done
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__ERR=$(jsonfilter -s "$__TMP" -e "@.status.code")
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[ $__ERR = 1 ] && return 0
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[ $__ERR = 10 ] && [ $1 = 0 ] && return 0
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__TMP=$(jsonfilter -s "$__TMP" -e "@.status.message")
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local A="$(date +%H%M%S) ERROR : [$__TMP] - Terminate process"
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logger -p user.err -t ddns-scripts[$$] $SECTION_ID: ${A:15}
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printf "%s\n" " $A" >>$LOGFILE
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exit 1
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}
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# Add record
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add_domain() {
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dnspod_transfer 1
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printf "%s\n" " $(date +%H%M%S) : Record add successfully: [$([ "$__HOST" = @ ] || echo $__HOST.)$__DOMAIN],[IP:$__IP]" >>$LOGFILE
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return 0
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}
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# Modify record
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update_domain() {
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dnspod_transfer 2
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printf "%s\n" " $(date +%H%M%S) : Record modified successfully: [$([ "$__HOST" = @ ] || echo $__HOST.)$__DOMAIN],[IP:$__IP],[TTL:$__TTL]" >>$LOGFILE
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return 0
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}
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# Get DNS record
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describe_domain() {
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ret=0
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__POST="login_token=$username,$password&format=json&domain=$__DOMAIN&sub_domain=$__HOST"
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__POST1="$__POST&value=$__IP&record_type=$__TYPE&record_line_id=0"
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dnspod_transfer 0
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__TMP=$(jsonfilter -s "$__TMP" -e "@.records[@.type='$__TYPE' && @.line_id='0']")
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if [ -z "$__TMP" ]; then
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printf "%s\n" " $(date +%H%M%S) : Record not exist: [$([ "$__HOST" = @ ] || echo $__HOST.)$__DOMAIN]" >>$LOGFILE
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ret=1
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else
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__RECIP=$(jsonfilter -s "$__TMP" -e "@.value")
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if [ "$__RECIP" != "$__IP" ]; then
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__RECID=$(jsonfilter -s "$__TMP" -e "@.id")
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__TTL=$(jsonfilter -s "$__TMP" -e "@.ttl")
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printf "%s\n" " $(date +%H%M%S) : Record needs to be updated: [Record IP:$__RECIP] [Local IP:$__IP]" >>$LOGFILE
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ret=2
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fi
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fi
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}
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build_command
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describe_domain
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if [ $ret = 1 ]; then
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sleep 3
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add_domain
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elif [ $ret = 2 ]; then
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sleep 3
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update_domain
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else
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printf "%s\n" " $(date +%H%M%S) : Record needs not update: [Record IP:$__RECIP] [Local IP:$__IP]" >>$LOGFILE
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fi
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return 0
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