/
jetty9_config.clj
497 lines (440 loc) · 20.5 KB
/
jetty9_config.clj
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(ns puppetlabs.trapperkeeper.services.webserver.jetty9-config
(:import (java.security KeyStore)
(java.io FileInputStream)
(java.util HashMap)
(ch.qos.logback.access PatternLayout)
(ch.qos.logback.core CoreConstants)
(org.eclipse.jetty.server.handler RequestLogHandler)
(org.eclipse.jetty.server Server)
(org.codehaus.janino ScriptEvaluator)
(org.codehaus.commons.compiler CompileException)
(java.lang.reflect InvocationTargetException)
(com.puppetlabs.trapperkeeper.services.webserver.jetty9.utils
LifeCycleImplementingRequestLogImpl
MDCAccessLogConverter MDCRequestLogHandler)
(com.puppetlabs.ssl_utils SSLUtils))
(:require [clojure.tools.logging :as log]
[clojure.string :as str]
[me.raynes.fs :as fs]
[schema.core :as schema]
[puppetlabs.ssl-utils.core :as ssl]
[puppetlabs.kitchensink.core :refer [missing? num-cpus uuid parse-bool]]
[puppetlabs.i18n.core :as i18n]))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Constants / Defaults
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; NOTE: We are making a decisive move away from overriding Jetty's
;;; implicit default values for settings when downstream TK apps do not
;;; explicitly provide values for them. Please see the comments/tests in
;;; `jetty9_default_config_test.clj` for full details.
;;;
;;; Below we are making a handful of deliberate exceptions to this rule,
;;; but please do not perpetuate this pattern without a compelling reason to
;;; do so.
;;;
;;; Host/port settings
;;;
;;; These are really common and fairly benign, and removing them would probably
;;; only serve to make the bare configuration more onerous.
;;;
(def default-http-port 8080)
(def default-https-port 8081)
(def default-host "localhost")
;;;
;;; Security-related settings
;;;
;;; After some discussion, we decided that it was probably still appropriate to
;;; override Jetty's defaults for these security-related settings. In the event
;;; that a vulnerability like "POODLE" is announced (where we needed to remove
;;; the SSLv3 protocol from the list of allowed protocols), we would need to do
;;; a release of tk-j9 to address it no matter what. The choices would then be
;;; to update our own defaults for security-related settings, or, if we're not
;;; imposing our own defaults, to try to upgrade to a new version of Jetty where
;;; their implicit defaults reflect the security issue. The latter is far more
;;; risky for our downstream apps, thus it was decided that it makes sense to
;;; keep these overrides.
(def tls-1-dot-3-ciphers
["TLS_AES_128_GCM_SHA256"
"TLS_AES_256_GCM_SHA384"])
(def tls-1-dot-2-ciphers
["TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384"
"TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384"
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256"
"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256"
"TLS_DHE_RSA_WITH_AES_256_GCM_SHA384"
"TLS_DHE_RSA_WITH_AES_128_GCM_SHA256"])
(def acceptable-ciphers
(into [] (concat tls-1-dot-3-ciphers tls-1-dot-2-ciphers)))
(def fips-tls-1-dot-2-ciphers
["TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384"
"TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384"
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256"
"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256"])
(def acceptable-ciphers-fips
(into [] (concat tls-1-dot-3-ciphers fips-tls-1-dot-2-ciphers)))
(def default-protocols ["TLSv1.3" "TLSv1.2"])
(def default-client-auth :need)
(def default-allow-renegotiation false)
;;;
;;; JMX
;;;
;;; The JMX metrics seem valuable enough, and inexpensive enough, to warrant
;;; leaving them on by default.
(def default-jmx-enable "true")
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Schemas
(def StaticContent
{:resource schema/Str
:path schema/Str
(schema/optional-key :follow-links) schema/Bool})
(def WebserverRawConfig
{(schema/optional-key :port) schema/Int
(schema/optional-key :host) schema/Str
(schema/optional-key :acceptor-threads) schema/Int
(schema/optional-key :selector-threads) schema/Int
(schema/optional-key :max-threads) schema/Int
(schema/optional-key :queue-max-size) schema/Int
(schema/optional-key :request-header-max-size) schema/Int
(schema/optional-key :request-body-max-size) schema/Int
(schema/optional-key :so-linger-seconds) schema/Int
(schema/optional-key :idle-timeout-milliseconds) schema/Int
(schema/optional-key :ssl-port) schema/Int
(schema/optional-key :ssl-host) schema/Str
(schema/optional-key :ssl-key) schema/Str
(schema/optional-key :ssl-cert) schema/Str
(schema/optional-key :ssl-cert-chain) schema/Str
(schema/optional-key :ssl-ca-cert) schema/Str
(schema/optional-key :ssl-acceptor-threads) schema/Int
(schema/optional-key :ssl-selector-threads) schema/Int
(schema/optional-key :keystore) schema/Str
(schema/optional-key :truststore) schema/Str
(schema/optional-key :key-password) schema/Str
(schema/optional-key :trust-password) schema/Str
(schema/optional-key :cipher-suites) (schema/either schema/Str [schema/Str])
(schema/optional-key :ssl-protocols) (schema/either schema/Str [schema/Str])
(schema/optional-key :client-auth) schema/Str
(schema/optional-key :ssl-crl-path) schema/Str
(schema/optional-key :jmx-enable) schema/Str
(schema/optional-key :default-server) schema/Bool
(schema/optional-key :static-content) [StaticContent]
(schema/optional-key :gzip-enable) schema/Bool
(schema/optional-key :access-log-config) schema/Str
(schema/optional-key :shutdown-timeout-seconds) schema/Int
(schema/optional-key :post-config-script) schema/Str
(schema/optional-key :allow-renegotiation) schema/Bool})
(def MultiWebserverRawConfigUnvalidated
{schema/Keyword WebserverRawConfig})
(defn one-default?
[config]
(->> config
vals
(filter :default-server)
count
(>= 1)))
(defn map-of-maps? [x]
(and (map? x)
(every? map? (vals x))))
(def MultiWebserverRawConfig
(schema/both MultiWebserverRawConfigUnvalidated (schema/pred one-default? 'one-default?)))
(def WebserverServiceRawConfig
(schema/conditional
map-of-maps? MultiWebserverRawConfig
:else WebserverRawConfig))
(def WebserverSslPemConfig
{:ssl-key schema/Str
:ssl-cert schema/Str
(schema/optional-key :ssl-cert-chain) schema/Str
:ssl-ca-cert schema/Str})
(def WebserverSslKeystoreConfig
{:keystore KeyStore
:key-password schema/Str
:truststore KeyStore
(schema/optional-key :trust-password) schema/Str})
(def WebserverSslClientAuth
(schema/enum :need :want :none))
(def WebserverConnectorCommon
{:request-header-max-size (schema/maybe schema/Int)
:idle-timeout-milliseconds (schema/maybe schema/Int)})
(def WebserverConnector
(merge WebserverConnectorCommon
{:host schema/Str
:port schema/Int
:acceptor-threads (schema/maybe schema/Int)
:selector-threads (schema/maybe schema/Int)}))
(def WebserverSslContextFactory
{:keystore-config WebserverSslKeystoreConfig
:client-auth WebserverSslClientAuth
(schema/optional-key :ssl-crl-path) (schema/maybe schema/Str)
:cipher-suites [schema/Str]
:protocols (schema/maybe [schema/Str])
(schema/optional-key :allow-renegotiation) (schema/maybe schema/Bool)})
(def WebserverSslConnector
(merge
WebserverConnector
WebserverSslContextFactory))
(def HasConnector
(schema/either
(schema/pred #(contains? % :http) 'has-http-connector?)
(schema/pred #(contains? % :https) 'has-https-connector?)))
(def WebserverConfig
(schema/both
HasConnector
{(schema/optional-key :http) WebserverConnector
(schema/optional-key :https) WebserverSslConnector
:max-threads (schema/maybe schema/Int)
:queue-max-size (schema/maybe schema/Int)
:jmx-enable schema/Bool}))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Conversion functions (raw config -> schema)
(schema/defn ^:always-validate
warn-if-so-linger-set
[config :- (schema/maybe WebserverRawConfig)]
(when (and config (:so-linger-seconds config))
(log/warn
(i18n/trs
"The so-linger-seconds setting was found to cause undefined behavior and was removed. The current value will be ignored."))))
(schema/defn ^:always-validate
maybe-get-pem-config! :- (schema/maybe WebserverSslPemConfig)
[config :- WebserverRawConfig]
(let [pem-required-keys [:ssl-key :ssl-cert :ssl-ca-cert]
pem-config (select-keys config pem-required-keys)]
(condp = (count pem-config)
3 (if-let [ssl-cert-chain (:ssl-cert-chain config)]
(assoc pem-config :ssl-cert-chain ssl-cert-chain)
pem-config)
0 nil
(throw (IllegalArgumentException.
(i18n/trs "Found SSL config options: {0}; If configuring SSL from PEM files, you must provide all of the following options: {1}"
(keys pem-config) pem-required-keys))))))
(schema/defn ^:always-validate
get-x509s-from-ssl-cert-pem :- (schema/pred ssl/certificate-list?)
[ssl-cert :- schema/Str
ssl-cert-chain :- (schema/maybe schema/Str)]
(if-not (fs/readable? ssl-cert)
(throw (IllegalArgumentException. (i18n/trs "Unable to open ''ssl-cert'' file: {0}" ssl-cert))))
(let [certs (ssl/pem->certs ssl-cert)]
(if (= 0 (count certs))
(throw (Exception. (i18n/trs "No certs found in ''ssl-cert'' file: {0}" ssl-cert))))
(if ssl-cert-chain
[(first certs)]
certs)))
(schema/defn ^:always-validate
get-x509s-from-ssl-cert-chain-pem :- (schema/pred ssl/certificate-list?)
[ssl-cert-chain :- (schema/maybe schema/Str)]
(if ssl-cert-chain
(do
(if-not (fs/readable? ssl-cert-chain)
(throw (IllegalArgumentException.
(i18n/trs "Unable to open ''ssl-cert-chain'' file: {0}"
ssl-cert-chain))))
(ssl/pem->certs ssl-cert-chain))
[]))
(schema/defn ^:always-validate
construct-ssl-x509-cert-chain :- (schema/pred ssl/certificate-list?)
[ssl-cert :- schema/Str
ssl-cert-chain :- (schema/maybe schema/Str)]
(let [ssl-cert-x509s (get-x509s-from-ssl-cert-pem ssl-cert ssl-cert-chain)
ssl-cert-chain-x509s (get-x509s-from-ssl-cert-chain-pem ssl-cert-chain)]
(into [] (concat ssl-cert-x509s ssl-cert-chain-x509s))))
(schema/defn ^:always-validate
pem-ssl-config->keystore-ssl-config :- WebserverSslKeystoreConfig
[{:keys [ssl-ca-cert ssl-key ssl-cert ssl-cert-chain]} :- WebserverSslPemConfig]
(let [key-password (uuid)
ssl-x509-chain (construct-ssl-x509-cert-chain ssl-cert
ssl-cert-chain)]
{:truststore (-> (ssl/keystore)
(ssl/assoc-certs-from-file!
"CA Certificate" ssl-ca-cert))
:key-password key-password
:keystore (-> (ssl/keystore)
(ssl/assoc-private-key!
"Private Key"
(ssl/pem->private-key ssl-key)
key-password
ssl-x509-chain))}))
(schema/defn ^:always-validate
warn-if-keystore-ssl-configs-found!
[config :- WebserverRawConfig]
(let [keystore-ssl-config-keys [:keystore :truststore :key-password :trust-password]
keystore-ssl-config (select-keys config keystore-ssl-config-keys)]
(when (pos? (count keystore-ssl-config))
(log/warn (i18n/trs "Found settings for both keystore-based and PEM-based SSL; using PEM-based settings, ignoring {0}"
(keys keystore-ssl-config))))))
(schema/defn ^:always-validate
get-jks-keystore-config! :- WebserverSslKeystoreConfig
[{:keys [truststore keystore key-password trust-password]}
:- WebserverRawConfig]
(when (some nil? [truststore keystore key-password trust-password])
(throw (IllegalArgumentException.
(i18n/trs "Missing some SSL configuration; must provide either :ssl-cert, :ssl-key, and :ssl-ca-cert, OR :truststore, :trust-password, :keystore, and :key-password."))))
{:keystore (doto (ssl/keystore)
(.load (FileInputStream. keystore)
(.toCharArray key-password)))
:truststore (doto (ssl/keystore)
(.load (FileInputStream. truststore)
(.toCharArray trust-password)))
:key-password key-password
:trust-password trust-password})
(schema/defn ^:always-validate
get-keystore-config! :- WebserverSslKeystoreConfig
[config :- WebserverRawConfig]
(if-let [pem-config (maybe-get-pem-config! config)]
(do
(warn-if-keystore-ssl-configs-found! config)
(pem-ssl-config->keystore-ssl-config pem-config))
(get-jks-keystore-config! config)))
(schema/defn ^:always-validate
get-client-auth! :- WebserverSslClientAuth
[config :- WebserverRawConfig]
(let [client-auth (:client-auth config)]
(cond
(nil? client-auth) default-client-auth
(contains? #{"need" "want" "none"} client-auth) (keyword client-auth)
:else (throw
(IllegalArgumentException.
(i18n/trs "Unexpected value found for client auth config option: {0}. Expected need, want, or none."
client-auth))))))
(schema/defn ^:always-validate
get-ssl-crl-path! :- (schema/maybe schema/Str)
[config :- WebserverRawConfig]
(if-let [ssl-crl-path (:ssl-crl-path config)]
(if (fs/readable? ssl-crl-path)
ssl-crl-path
(throw (IllegalArgumentException.
(i18n/trs "Non-readable path specified for ssl-crl-path option: {0}"
ssl-crl-path))))))
(schema/defn get-or-parse-sequential-config-value :- [schema/Str]
"Some config values can be entered as either a vector of strings or
a single comma-separated string. Get the value for the given config
key, parsing it into a seq if it's a string, or returning a default
if it's not provided."
[config :- WebserverRawConfig
key :- schema/Keyword
default :- [schema/Str]]
(let [value (key config)]
(cond
(string? value) (map str/trim (str/split value #","))
value value
:else default)))
(defn get-cipher-suites-config [config]
(get-or-parse-sequential-config-value config :cipher-suites (if (SSLUtils/isFIPS)
acceptable-ciphers-fips
acceptable-ciphers)))
(defn get-ssl-protocols-config [config]
(get-or-parse-sequential-config-value config :ssl-protocols default-protocols))
(schema/defn ^:always-validate
contains-keys? :- schema/Bool
[config :- WebserverRawConfig
keys :- #{schema/Keyword}]
(boolean (some #(contains? config %) keys)))
(defn contains-http-connector? [config]
(contains-keys? config #{:port :host}))
(schema/defn ^:always-validate
common-connector-config :- WebserverConnectorCommon
[config :- WebserverRawConfig]
{:request-header-max-size (:request-header-max-size config)
:idle-timeout-milliseconds (:idle-timeout-milliseconds config)})
(schema/defn ^:always-validate
maybe-get-http-connector :- (schema/maybe WebserverConnector)
[config :- WebserverRawConfig]
(if (contains-http-connector? config)
(merge (common-connector-config config)
{:host (or (:host config) default-host)
:port (or (:port config) default-http-port)
:acceptor-threads (:acceptor-threads config)
:selector-threads (:selector-threads config)})))
(schema/defn ^:always-validate
contains-https-connector? :- schema/Bool
[config :- WebserverRawConfig]
(contains-keys? config #{:ssl-port :ssl-host}))
(schema/defn ^:always-validate
maybe-get-https-connector :- (schema/maybe WebserverSslConnector)
[config :- WebserverRawConfig]
(if (contains-https-connector? config)
(merge (common-connector-config config)
{:host (or (:ssl-host config) default-host)
:port (or (:ssl-port config) default-https-port)
:acceptor-threads (:ssl-acceptor-threads config)
:selector-threads (:ssl-selector-threads config)
:keystore-config (get-keystore-config! config)
:cipher-suites (get-cipher-suites-config config)
:protocols (get-ssl-protocols-config config)
:client-auth (get-client-auth! config)
:ssl-crl-path (get-ssl-crl-path! config)
:allow-renegotiation (get config :allow-renegotiation
default-allow-renegotiation)})))
(schema/defn ^:always-validate
maybe-add-http-connector :- {(schema/optional-key :http) WebserverConnector
schema/Keyword schema/Any}
[acc config :- WebserverRawConfig]
(if-let [http-connector (maybe-get-http-connector config)]
(assoc acc :http http-connector)
acc))
(schema/defn ^:always-validate
maybe-add-https-connector :- {(schema/optional-key :https) WebserverSslConnector
schema/Keyword schema/Any}
[acc config :- WebserverRawConfig]
(if-let [https-connector (maybe-get-https-connector config)]
(assoc acc :https https-connector)
acc))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Private helper functions
(defn validate-config
[config]
(when-not (one-default? config)
(throw (IllegalArgumentException.
(i18n/trs "Error: More than one default server specified in configuration")))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Public
(schema/defn ^:always-validate
process-config :- WebserverConfig
[config :- WebserverRawConfig]
(warn-if-so-linger-set config)
(let [result (-> {}
(maybe-add-http-connector config)
(maybe-add-https-connector config)
(assoc :max-threads (:max-threads config))
(assoc :queue-max-size (:queue-max-size config))
(assoc :jmx-enable (parse-bool
(get config
:jmx-enable default-jmx-enable))))]
(when-not (some #(contains? result %) [:http :https])
(throw (IllegalArgumentException.
(i18n/trs "Either host, port, ssl-host, or ssl-port must be specified on the config in order for the server to be started"))))
result))
(schema/defn ^:always-validate
init-log-handler :- RequestLogHandler
[config :- WebserverRawConfig]
(let [handler (MDCRequestLogHandler.)
pattern-rules (HashMap.)
logger (LifeCycleImplementingRequestLogImpl.)]
(doseq [pattern ["X" "mdc"]]
(.put pattern-rules
pattern
(.getName MDCAccessLogConverter)))
(.putObject logger CoreConstants/PATTERN_RULE_REGISTRY pattern-rules)
(.setFileName logger (:access-log-config config))
(.setQuiet logger true)
(.setRequestLog handler logger)
handler))
(defn maybe-init-log-handler
[config]
(if (:access-log-config config)
(init-log-handler config)))
(schema/defn ^:always-validate
execute-post-config-script!
[s :- Server
script :- schema/Str]
(log/warn (i18n/trs "The ''post-config-script'' setting is for advanced use cases only, and may be subject to minor changes when the application is upgraded."))
(let [script-err-msg (i18n/trs "Invalid script string in webserver ''post-config-script'' configuration")]
(try
(let [evaluator (doto (ScriptEvaluator.)
(.setParameters (into-array String ["server"])
(into-array Class [Server]))
(.cook script))]
(.evaluate evaluator (into-array Object [s])))
(catch CompileException ex
(throw (IllegalArgumentException. script-err-msg ex)))
(catch InvocationTargetException ex
(throw (IllegalArgumentException. script-err-msg ex))))))