Browse Source
Add deploy/zyxel_gs1900.sh
Add deploy/zyxel_gs1900.sh
Add support for deploying to the Zyxel GS1900 line of switches as long as those switches are running at least firmware V2.80. Tested on a Zyxel GS1900-8 and GS1900-24E Resolves #5042pull/5043/head
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#!/usr/bin/env sh |
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|
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# Deploy certificates to Zyxel GS1900 series switches |
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# |
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# This script uses the https web administration interface in order |
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# to upload updated certificates to Zyxel GS1900 series switches. |
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# Only a few models have been tested but untested switches from the |
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# same model line may work as well. If you test and confirm a switch |
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# as working please submit a pull request updating this compatibility |
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# list! |
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# |
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# Known Issues: |
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# 1. This is a consumer grade switch and is a bit underpowered |
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# the longer the RSA key size the slower your switch web UI |
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# will be. RSA 2048 will work, RSA 4096 will work but you may |
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# experience performance problems. |
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# 2. You must use RSA certificates. The switch will reject EC-256 |
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# and EC-384 certificates in firmware 2.80 |
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# See: https://community.zyxel.com/en/discussion/21506/bug-cannot-import-ssl-cert-on-gs1900-8-and-gs1900-24e-firmware-v2-80/ |
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# |
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# Current GS1900 Switch Compatibility: |
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# GS1900-8 - Working as of firmware V2.80 |
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# GS1900-8HP - Untested |
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# GS1900-10HP - Untested |
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# GS1900-16 - Untested |
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# GS1900-24 - Untested |
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# GS1900-24E - Working as of firmware V2.80 |
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# GS1900-24EP - Untested |
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# GS1900-24HP - Untested |
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# GS1900-48 - Untested |
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# GS1900-48HP - Untested |
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# |
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# Prerequisite Setup Steps: |
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# 1. Install at least firmware V2.80 on your switch |
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# 2. Enable HTTPS web management on your switch |
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# |
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# Usage: |
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# 1. Ensure the switch has firmware V2.80 or later. |
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# 2. Ensure the switch has HTTPS management enabled. |
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# 3. Set the appropriate environment variables for your environment. |
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# |
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# DEPLOY_ZYXEL_SWITCH - The switch hostname. (Default: _cdomain) |
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# DEPLOY_ZYXEL_SWITCH_USER - The webadmin user. (Default: admin) |
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# DEPLOY_ZYXEL_SWITCH_PASSWORD - The webadmin password for the switch. |
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# DEPLOY_ZYXEL_SWITCH_REBOOT - If "1" reboot after update. (Default: "0") |
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# |
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# 4. Run the deployment plugin: |
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# acme.sh --deploy --deploy-hook zyxel_gs1900 -d example.com |
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# |
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# returns 0 means success, otherwise error. |
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|
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#domain keyfile certfile cafile fullchain |
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zyxel_gs1900_deploy() { |
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_zyxel_gs1900_minimum_firmware_version="v2.80" |
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|
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_cdomain="$1" |
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_ckey="$2" |
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_ccert="$3" |
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_cca="$4" |
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_cfullchain="$5" |
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|
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_debug _cdomain "$_cdomain" |
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_debug2 _ckey "$_ckey" |
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_debug _ccert "$_ccert" |
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_debug _cca "$_cca" |
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_debug _cfullchain "$_cfullchain" |
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|
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_getdeployconf DEPLOY_ZYXEL_SWITCH |
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_getdeployconf DEPLOY_ZYXEL_SWITCH_USER |
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_getdeployconf DEPLOY_ZYXEL_SWITCH_PASSWORD |
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_getdeployconf DEPLOY_ZYXEL_SWITCH_REBOOT |
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if [ -z "$DEPLOY_ZYXEL_SWITCH" ]; then |
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DEPLOY_ZYXEL_SWITCH="$_cdomain" |
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fi |
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if [ -z "$DEPLOY_ZYXEL_SWITCH_USER" ]; then |
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DEPLOY_ZYXEL_SWITCH_USER="admin" |
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fi |
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if [ -z "$DEPLOY_ZYXEL_SWITCH_PASSWORD" ]; then |
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DEPLOY_ZYXEL_SWITCH_PASSWORD="1234" |
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fi |
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if [ -z "$DEPLOY_ZYXEL_SWITCH_REBOOT" ]; then |
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DEPLOY_ZYXEL_SWITCH_REBOOT="0" |
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fi |
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|
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_savedeployconf DEPLOY_ZYXEL_SWITCH "$DEPLOY_ZYXEL_SWITCH" |
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_savedeployconf DEPLOY_ZYXEL_SWITCH_USER "$DEPLOY_ZYXEL_SWITCH_USER" |
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_savedeployconf DEPLOY_ZYXEL_SWITCH_PASSWORD "$DEPLOY_ZYXEL_SWITCH_PASSWORD" |
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_savedeployconf DEPLOY_ZYXEL_SWITCH_REBOOT "$DEPLOY_ZYXEL_SWITCH_REBOOT" |
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_debug DEPLOY_ZYXEL_SWITCH "$DEPLOY_ZYXEL_SWITCH" |
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_debug DEPLOY_ZYXEL_SWITCH_USER "$DEPLOY_ZYXEL_SWITCH_USER" |
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_secure_debug DEPLOY_ZYXEL_SWITCH_PASSWORD "$DEPLOY_ZYXEL_SWITCH_PASSWORD" |
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_debug DEPLOY_ZYXEL_SWITCH_REBOOT "$DEPLOY_ZYXEL_SWITCH_REBOOT" |
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_zyxel_switch_base_uri="https://${DEPLOY_ZYXEL_SWITCH}" |
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_info "Beginning to deploy to a Zyxel GS1900 series switch at ${_zyxel_switch_base_uri}." |
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_zyxel_gs1900_deployment_precheck || return $? |
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_zyxel_gs1900_should_update |
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if [ "$?" != "0" ]; then |
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_info "The switch already has our certificate installed. No update required." |
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return 0 |
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else |
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_info "The switch does not yet have our certificate installed." |
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fi |
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_info "Logging into the switch web interface." |
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_zyxel_gs1900_login || return $? |
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_info "Validating the switch is compatible with this deployment process." |
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_zyxel_gs1900_validate_device_compatibility || return $? |
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_info "Uploading the certificate." |
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_zyxel_gs1900_upload_certificate || return $? |
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if [ "$DEPLOY_ZYXEL_SWITCH_REBOOT" = "1" ]; then |
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_info "Rebooting the switch." |
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_zyxel_gs1900_trigger_reboot || return $? |
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fi |
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return 0 |
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} |
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_zyxel_gs1900_deployment_precheck() { |
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# Initialize the keylength if it isn't already |
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if [ -z "$Le_Keylength" ]; then |
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Le_Keylength="" |
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fi |
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if _isEccKey "$Le_Keylength"; then |
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_info "Warning: Zyxel GS1900 switches are not currently known to work with ECC keys!" |
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_info "You can continue, but your switch may reject your key." |
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elif [ -n "$Le_Keylength" ] && [ "$Le_Keylength" -gt "2048" ]; then |
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_info "Warning: Your RSA key length is greater than 2048!" |
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_info "You can continue, but you may experience performance issues in the web administration interface." |
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fi |
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# Check the server for some common failure modes prior to authentication and certificate upload in order to avoid |
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# sending a certificate when we may not want to. |
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test_login_response=$(_post "username=test&password=test&login=true;" "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi?cmd=0.html" '' "POST" "application/x-www-form-urlencoded" 2>&1) |
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test_login_page_exitcode="$?" |
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_debug3 "Test Login Response: ${test_login_response}" |
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if [ "$test_login_page_exitcode" -ne "0" ]; then |
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if { [ "${ACME_USE_WGET:-0}" = "0" ] && [ "$test_login_page_exitcode" = "60" ]; } || { [ "${ACME_USE_WGET:-0}" = "1" ] && [ "$test_login_page_exitcode" = "5" ]; }; then |
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_err "The SSL certificate at $_zyxel_switch_base_uri could not be validated." |
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_err "Please double check your hostname, port, and that you are actually connecting to your switch." |
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_err "If the problem persists then please ensure that the certificate is not self-signed, has not" |
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_err "expired, and matches the switch hostname. If you expect validation to fail then you can disable" |
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_err "certificate validation by running with --insecure." |
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return 1 |
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elif [ "${ACME_USE_WGET:-0}" = "0" ] && [ "$test_login_page_exitcode" = "56" ]; then |
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_debug3 "Intentionally ignore curl exit code 56 in our precheck" |
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else |
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_err "Failed to submit the initial login attempt to $_zyxel_switch_base_uri." |
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return 1 |
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fi |
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fi |
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} |
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_zyxel_gs1900_login() { |
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# Login to the switch and set the appropriate auth cookie in _H1 |
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username_encoded=$(printf "%s" "$DEPLOY_ZYXEL_SWITCH_USER" | _url_encode) |
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password_encoded=$(_zyxel_gs1900_password_obfuscate "$DEPLOY_ZYXEL_SWITCH_PASSWORD" | _url_encode) |
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login_response=$(_post "username=${username_encoded}&password=${password_encoded}&login=true;" "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi?cmd=0.html" '' "POST" "application/x-www-form-urlencoded" | tr -d '\n') |
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auth_response=$(_post "authId=${login_response}&login_chk=true" "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi?cmd=0.html" '' "POST" "application/x-www-form-urlencoded" | tr -d '\n') |
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if [ "$auth_response" != "OK" ]; then |
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_err "Login failed due to invalid credentials." |
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_err "Please double check the configured username and password and try again." |
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return 1 |
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fi |
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sessionid=$(grep -i '^set-cookie:' "$HTTP_HEADER" | _egrep_o 'HTTPS_XSSID=[^;]*;' | tr -d ';') |
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_secure_debug2 "sessionid" "$sessionid" |
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export _H1="Cookie: $sessionid" |
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_secure_debug2 "_H1" "$_H1" |
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return 0 |
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} |
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_zyxel_gs1900_validate_device_compatibility() { |
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# Check the switches model and firmware version and throw errors |
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# if this script isn't compatible. |
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device_info_html=$(_get "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi?cmd=12" | tr -d '\n') |
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model_name=$(_zyxel_gs1900_get_model "$device_info_html") |
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_debug2 "model_name" "$model_name" |
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if [ -z "$model_name" ]; then |
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_err "Could not find the switch model name." |
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_err "Please re-run with --debug and report a bug." |
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return $? |
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fi |
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if ! expr "$model_name" : "GS1900-" >/dev/null; then |
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_err "Switch is an unsupported model: $model_name" |
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return 1 |
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fi |
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firmware_version=$(_zyxel_gs1900_get_firmware_version "$device_info_html") |
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_debug2 "firmware_version" "$firmware_version" |
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if [ -z "$firmware_version" ]; then |
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_err "Could not find the switch firmware version." |
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_err "Please re-run with --debug and report a bug." |
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return $? |
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fi |
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_debug2 "_zyxel_gs1900_minimum_firmware_version" "$_zyxel_gs1900_minimum_firmware_version" |
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minimum_major_version=$(_zyxel_gs1900_parse_major_version "$_zyxel_gs1900_minimum_firmware_version") |
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_debug2 "minimum_major_version" "$minimum_major_version" |
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minimum_minor_version=$(_zyxel_gs1900_parse_minor_version "$_zyxel_gs1900_minimum_firmware_version") |
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_debug2 "minimum_minor_version" "$minimum_minor_version" |
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_debug2 "firmware_version" "$firmware_version" |
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firmware_major_version=$(_zyxel_gs1900_parse_major_version "$firmware_version") |
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_debug2 "firmware_major_version" "$firmware_major_version" |
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firmware_minor_version=$(_zyxel_gs1900_parse_minor_version "$firmware_version") |
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_debug2 "firmware_minor_version" "$firmware_minor_version" |
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_ret=0 |
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if [ "$firmware_major_version" -lt "$minimum_major_version" ]; then |
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_ret=1 |
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elif [ "$firmware_major_version" -eq "$minimum_major_version" ] && [ "$firmware_minor_version" -lt "$minimum_minor_version" ]; then |
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_ret=1 |
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fi |
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if [ "$_ret" != "0" ]; then |
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_err "Unsupported firmware version $firmware_version. Please upgrade to at least version $_zyxel_gs1900_minimum_firmware_version." |
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fi |
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return $? |
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} |
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_zyxel_gs1900_should_update() { |
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# Get the remote certificate serial number |
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_remote_cert=$(${ACME_OPENSSL_BIN:-openssl} s_client -showcerts -connect "${DEPLOY_ZYXEL_SWITCH}:443" 2>/dev/null </dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p') |
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_debug3 "_remote_cert" "$_remote_cert" |
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_remote_cert_serial=$(printf "%s" "${_remote_cert}" | ${ACME_OPENSSL_BIN:-openssl} x509 -noout -serial) |
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_debug2 "_remote_cert_serial" "$_remote_cert_serial" |
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# Get our certificate serial number |
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_our_cert_serial=$(${ACME_OPENSSL_BIN:-openssl} x509 -noout -serial < "${_ccert}") |
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_debug2 "_our_cert_serial" "$_our_cert_serial" |
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[ "${_remote_cert_serial}" != "${_our_cert_serial}" ] |
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} |
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_zyxel_gs1900_upload_certificate() { |
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# Generate a PKCS12 certificate with a temporary password since the web interface |
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# requires a password be present. Then upload that certificate. |
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temp_cert_password=$(head /dev/urandom | tr -dc 'A-Za-z0-9' | head -c 64) |
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_secure_debug2 "temp_cert_password" "$temp_cert_password" |
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temp_pkcs12="$(_mktemp)" |
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_debug2 "temp_pkcs12" "$temp_pkcs12" |
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_toPkcs "$temp_pkcs12" "$_ckey" "$_ccert" "$_cca" "$temp_cert_password" |
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if [ "$?" != "0" ]; then |
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_err "Failed to generate a pkcs12 certificate." |
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_err "Please re-run with --debug and report a bug." |
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# ensure the temporary certificate file is cleaned up |
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[ -f "${temp_pkcs12}" ] && rm -f "${temp_pkcs12}" |
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return $? |
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fi |
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# Load the upload page |
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upload_page_html=$(_get "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi?cmd=5914" | tr -d '\n') |
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# Get the first instance of XSSID from the upload page |
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form_xss_value=$(printf "%s" "$upload_page_html" | _egrep_o 'name="XSSID"\s*value="[^"]+"' | sed 's/^.*="\([^"]\{1,\}\)"$/\1/g' | head -n 1) |
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_secure_debug2 "form_xss_value" "$form_xss_value" |
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_info "Generating the certificate upload request" |
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upload_post_request="$(_mktemp)" |
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upload_post_boundary="---------------------------$(date +%Y%m%d%H%M%S)" |
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{ |
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printf -- "--%s\r\n" "${upload_post_boundary}" |
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printf "Content-Disposition: form-data; name=\"XSSID\"\r\n\r\n%s\r\n" "${form_xss_value}" |
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printf -- "--%s\r\n" "${upload_post_boundary}" |
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printf "Content-Disposition: form-data; name=\"http_file\"; filename=\"temp_pkcs12.pfx\"\r\n" |
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printf "Content-Type: application/pkcs12\r\n\r\n" |
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cat "${temp_pkcs12}" |
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printf "\r\n" |
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printf -- "--%s\r\n" "${upload_post_boundary}" |
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printf "Content-Disposition: form-data; name=\"pwd\"\r\n\r\n%s\r\n" "${temp_cert_password}" |
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printf -- "--%s\r\n" "${upload_post_boundary}" |
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printf "Content-Disposition: form-data; name=\"cmd\"\r\n\r\n%s\r\n" "31" |
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printf -- "--%s\r\n" "${upload_post_boundary}" |
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printf "Content-Disposition: form-data; name=\"sysSubmit\"\r\n\r\n%s\r\n" "Import" |
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printf -- "--%s--\r\n" "${upload_post_boundary}" |
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} >"${upload_post_request}" |
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_info "Upload certificate to the switch" |
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|
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# Unfortunately we cannot rely upon the switch response across switch models |
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# to return a consistent body return - so we cannot inspect the result of this |
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# upload to determine success. |
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upload_response=$(_zyxel_upload_pkcs12 "${upload_post_request}" "${upload_post_boundary}" 2>&1) |
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_debug3 "Upload response: ${upload_response}" |
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rm "${upload_post_request}" |
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# Pause for a few seconds to give the switch a chance to process the certificate |
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# For some reason I've found this to be necessary on my GS1900-24E |
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_debug2 "Waiting 4 seconds for the switch to process the newly uploaded certificate." |
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sleep "4" |
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# Check to see whether or not our update was successful |
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_ret=0 |
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_zyxel_gs1900_should_update |
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if [ "$?" != "0" ]; then |
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_info "The certificate was updated successfully" |
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else |
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_ret=1 |
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_err "The certificate upload does not appear to have worked." |
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_err "The remote certificate does not match the certificate we tried to upload." |
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_err "Please re-run with --debug 2 and review for unexpected errors. If none can be found please submit a bug." |
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fi |
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|
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# ensure the temporary files are cleaned up |
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[ -f "${temp_pkcs12}" ] && rm -f "${temp_pkcs12}" |
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return $_ret |
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} |
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|
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# make the certificate upload request using either |
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# --data binary with @ for file access in CURL |
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# or using --post-file for wget to ensure we upload |
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# the pkcs12 without getting tripped up on null bytes |
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# |
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# Usage _zyxel_upload_pkcs12 [body file name] [post boundary marker] |
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_zyxel_upload_pkcs12() { |
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bodyfilename="$1" |
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multipartformmarker="$2" |
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_post_url="${_zyxel_switch_base_uri}/cgi-bin/httpuploadcert.cgi" |
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httpmethod="POST" |
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_postContentType="multipart/form-data; boundary=${multipartformmarker}" |
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|
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if [ -z "$httpmethod" ]; then |
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httpmethod="POST" |
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fi |
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_debug $httpmethod |
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_debug "_post_url" "$_post_url" |
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_debug2 "bodyfilename" "$bodyfilename" |
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_debug2 "_postContentType" "$_postContentType" |
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_inithttp |
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|
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if [ "$_ACME_CURL" ] && [ "${ACME_USE_WGET:-0}" = "0" ]; then |
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_CURL="$_ACME_CURL" |
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if [ "$HTTPS_INSECURE" ]; then |
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_CURL="$_CURL --insecure " |
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fi |
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if [ "$httpmethod" = "HEAD" ]; then |
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_CURL="$_CURL -I " |
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fi |
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_debug "_CURL" "$_CURL" |
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|
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response="$($_CURL --user-agent "$USER_AGENT" -X $httpmethod -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" --data-binary "@${bodyfilename}" "$_post_url")" |
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|
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_ret="$?" |
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if [ "$_ret" != "0" ]; then |
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_err "Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: $_ret" |
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if [ "$DEBUG" ] && [ "$DEBUG" -ge "2" ]; then |
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_err "Here is the curl dump log:" |
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_err "$(cat "$_CURL_DUMP")" |
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fi |
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fi |
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elif [ "$_ACME_WGET" ]; then |
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_WGET="$_ACME_WGET" |
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if [ "$HTTPS_INSECURE" ]; then |
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_WGET="$_WGET --no-check-certificate " |
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fi |
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_debug "_WGET" "$_WGET" |
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|
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response="$($_WGET -S -O - --user-agent="$USER_AGENT" --header "$_H5" --header "$_H4" --header "$_H3" --header "$_H2" --header "$_H1" --post-file="${bodyfilename}" "$_post_url" 2>"$HTTP_HEADER")" |
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|
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_ret="$?" |
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if [ "$_ret" = "8" ]; then |
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_ret=0 |
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_debug "wget returned 8 as the server returned a 'Bad Request' response. Let's process the response later." |
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fi |
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if [ "$_ret" != "0" ]; then |
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_err "Please refer to https://www.gnu.org/software/wget/manual/html_node/Exit-Status.html for error code: $_ret" |
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fi |
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if _contains "$_WGET" " -d "; then |
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# Demultiplex wget debug output |
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cat "$HTTP_HEADER" >&2 |
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_sed_i '/^[^ ][^ ]/d; /^ *$/d' "$HTTP_HEADER" |
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fi |
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# remove leading whitespaces from header to match curl format |
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_sed_i 's/^ //g' "$HTTP_HEADER" |
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else |
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_ret="$?" |
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_err "Neither curl nor wget have been found, cannot make $httpmethod request." |
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fi |
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_debug "_ret" "$_ret" |
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printf "%s" "$response" |
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return $_ret |
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} |
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|
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_zyxel_gs1900_trigger_reboot() { |
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# Trigger a reboot via the management reboot page in the web ui |
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reboot_page_html=$(_get "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi?cmd=5888" | tr -d '\n') |
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reboot_xss_value=$(printf "%s" "$reboot_page_html" | _egrep_o 'name="XSSID"\s*value="[^"]+"' | sed 's/^.*="\([^"]\{1,\}\)"$/\1/g') |
|||
_secure_debug2 "reboot_xss_value" "$reboot_xss_value" |
|||
|
|||
reboot_response_html=$(_post "XSSID=${reboot_xss_value}&cmd=5889&sysSubmit=Reboot" "${_zyxel_switch_base_uri}/cgi-bin/dispatcher.cgi" '' "POST" "application/x-www-form-urlencoded") |
|||
reboot_message=$(printf "%s" "$reboot_response_html" | tr -d '\t\r\n\v\f' | _egrep_o "Rebooting now...") |
|||
|
|||
if [ -z "$reboot_message" ]; then |
|||
_err "Failed to trigger switch reboot!" |
|||
return 1 |
|||
fi |
|||
|
|||
return 0 |
|||
} |
|||
|
|||
# password |
|||
_zyxel_gs1900_password_obfuscate() { |
|||
# Return the password obfuscated via the same method used by the |
|||
# switch's web UI login process |
|||
echo "$1" | awk '{ |
|||
encoded = ""; |
|||
password = $1; |
|||
allowed = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; |
|||
len = length($1); |
|||
pwi = length($1); |
|||
|
|||
for (i=1; i <= (321 - pwi); i++) |
|||
{ |
|||
if (0 == i % 5 && pwi > 0) |
|||
{ |
|||
encoded = (encoded)(substr(password, pwi--, 1)); |
|||
} |
|||
else if (i == 123) |
|||
{ |
|||
if (len < 10) |
|||
{ |
|||
encoded = (encoded)(0); |
|||
} |
|||
else |
|||
{ |
|||
encoded = (encoded)(int(len / 10)); |
|||
} |
|||
} |
|||
else if (i == 289) |
|||
{ |
|||
encoded = (encoded)(len % 10) |
|||
} |
|||
else |
|||
{ |
|||
encoded = (encoded)(substr(allowed, int(rand() * length(allowed)), 1)) |
|||
} |
|||
} |
|||
printf("%s", encoded); |
|||
}' |
|||
} |
|||
|
|||
# html label |
|||
_zyxel_html_table_lookup() { |
|||
# Look up a value in the html representing the status page of the switch |
|||
# when provided with the html of the page and the label (i.e. "Model Name:") |
|||
html="$1" |
|||
label=$(printf "%s" "$2" | tr -d ' ') |
|||
lookup_result=$(printf "%s" "$html" | tr -d "\t\r\n\v\f" | sed 's/<tr>/\n<tr>/g' | sed 's/<td[^>]*>/<td>/g' | tr -d ' ' | grep -i "$label" | sed "s/<tr><td>$label<\/td><td>\([^<]\{1,\}\)<\/td><\/tr>/\1/i") |
|||
printf "%s" "$lookup_result" |
|||
return 0 |
|||
} |
|||
|
|||
# html |
|||
_zyxel_gs1900_get_model() { |
|||
html="$1" |
|||
model_name=$(_zyxel_html_table_lookup "$html" "Model Name:") |
|||
printf "%s" "$model_name" |
|||
} |
|||
|
|||
# html |
|||
_zyxel_gs1900_get_firmware_version() { |
|||
html="$1" |
|||
firmware_version=$(_zyxel_html_table_lookup "$html" "Firmware Version:" | _egrep_o "V[^.]+.[^(]+") |
|||
printf "%s" "$firmware_version" |
|||
} |
|||
|
|||
# version_number |
|||
_zyxel_gs1900_parse_major_version() { |
|||
printf "%s" "$1" | sed 's/^V\([0-9]\{1,\}\).\{1,\}$/\1/gi' |
|||
} |
|||
|
|||
# version_number |
|||
_zyxel_gs1900_parse_minor_version() { |
|||
printf "%s" "$1" | sed 's/^.\{1,\}\.\([0-9]\{1,\}\)$/\1/gi' |
|||
} |
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