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core.clj
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core.clj
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(ns s4.core
(:require [cemerick.uri :as uri]
[clojure.core.async :as async]
[clojure.data.xml :as xml]
[clojure.set :as set]
[clojure.string :as string]
[clojure.tools.logging :as log]
[clojure.walk :refer [keywordize-keys]]
[konserve.memory :as km]
[konserve.protocols :as kp]
[konserve.serializers :as ser]
[s4.$$$$ :as $]
[s4.auth :as auth]
[s4.sqs :as sqs]
[s4.sqs.queues :as queues]
[superv.async :as sv]
[aleph.http :as http]
[s4.util :as util :refer [xml-content-type s3-xmlns]]
[clojure.spec.alpha :as s]
[clojure.data.json :as json]
[clojure.core.async.impl.protocols :as impl])
(:import [java.time ZonedDateTime ZoneId Instant Clock]
[java.time.format DateTimeFormatter DateTimeParseException]
[java.nio ByteBuffer]
[java.security SecureRandom MessageDigest]
[java.util Base64 List UUID]
[com.google.common.io ByteStreams]
[java.io ByteArrayInputStream InputStream]
[org.fressian.handlers ReadHandler WriteHandler]
[clojure.lang PersistentTreeMap]
[java.net InetSocketAddress]))
(def write-handlers
"Write handlers for fressian, for durable konserve stores."
(atom {PersistentTreeMap
{"sorted-map"
(reify WriteHandler
(write [_ wtr m]
(.writeTag wtr "sorted-map" 1)
(.writeObject wtr (mapcat identity m))))}
ZonedDateTime
{"zoned-inst"
(reify WriteHandler
(write [_ wtr t]
(.writeTag wtr "zoned-inst" 2)
(.writeInt wtr (-> ^ZonedDateTime t ^Instant (.toInstant) (.toEpochMilli)))
(.writeString wtr (.getId (.getZone ^ZonedDateTime t)))))}}))
(def read-handlers
"Read handlers for fressian, for durable konserve stores."
(atom {"sorted-map"
(reify ReadHandler
(read [_ rdr tag component-count]
(let [kvs ^List (.readObject rdr)]
(PersistentTreeMap/create (seq kvs)))))
"zoned-inst"
(reify ReadHandler
(read [_ rdr tag component-count]
(let [milli (.readInt rdr)
zone-id ^String (.readObject rdr)]
(ZonedDateTime/ofInstant (Instant/ofEpochMilli milli)
(ZoneId/of zone-id)))))}))
(defn- drop-leading-slashes
[path]
(.substring path (loop [i 0]
(if (and (< i (count path))
(= \/ (.charAt path i)))
(recur (inc i))
i))))
(defn- read-bucket-object
[request hostname]
(let [host-header (get-in request [:headers "host"])]
(if (and (string/ends-with? host-header hostname)
(not= host-header hostname))
[(uri/uri-decode (.substring (get-in request [:headers "host"]) 0 (- (count host-header) (count hostname) 1)))
(uri/uri-decode (drop-leading-slashes (:uri request)))]
(vec (map uri/uri-decode (.split (drop-leading-slashes (:uri request)) "/" 2))))))
(s/def ::S3EventType #{"s3:ReducedRedundancyLostObject"
"s3:ObjectCreated:*"
"s3:ObjectCreated:Put"
"s3:ObjectCreated:Post"
"s3:ObjectCreated:Copy"
"s3:ObjectCreated:CompleteMultipartUpload"
"s3:ObjectRemoved:*"
"s3:ObjectRemoved:Delete"
"s3:ObjectRemoved:DeleteMarkerCreated"
"s3:ObjectRestore:Post"
"s3:ObjectRestore:Completed"})
(s/def :QueueConfiguration/Event (s/coll-of ::S3EventType))
(s/def ::FilterRuleName (fn [[k v]]
(and (= :Name k)
(#{"prefix" "suffix"} v))))
(s/def ::FilterRuleValue (fn [[k v]]
(and (= :Value k)
(string? v))))
(s/def ::FilterRule (fn [rule]
(when-let [[k & args] rule]
(and (= :FilterRule k)
(= 2 (count args))
(some #(s/valid? ::FilterRuleName %) args)
(some #(s/valid? ::FilterRuleValue %) args)))))
(s/def ::Filter (fn [f]
(when-let [[k & rules] f]
(and (= :S3Key k)
(every? #(s/valid? ::FilterRule %) rules)))))
(s/def :QueueConfiguration/Id string?)
(s/def :QueueConfiguration/Queue string?)
(s/def ::QueueConfiguration (s/coll-of (s/keys :req-un [:QueueConfiguration/Event
:QueueConfiguration/Queue]
:opt-un [::Filter
:QueueConfiguration/Id])))
(s/def :TopicConfiguration/Event (s/coll-of ::S3EventType))
(s/def :TopicConfiguration/Id string?)
(s/def :TopicConfiguration/Topic string?)
(s/def ::TopicConfiguration (s/coll-of (s/keys :req-un [:TopicConfiguration/Event
:TopicConfiguration/Topic]
:opt-un [::Filter
:TopicConfiguration/Id])))
(s/def :LambdaFunctionConfiguration/Event (s/coll-of ::S3EventType))
(s/def :LambdaFunctionConfiguration/Id string?)
(s/def :LambdaFunctionConfiguration/CloudFunction string?)
(s/def ::LambdaFunctionConfiguration (s/coll-of (s/keys :req-un [:LambdaFunctionConfiguration/Event
:LambdaFunctionConfiguration/CloudFunction]
:opt-un [::Filter
:LambdaFunctionConfiguration/Id])))
(s/def ::NotificationConfiguration (s/keys :opt-un [::QueueConfiguration
::TopicConfiguration
::LambdaFunctionConfiguration]))
(defn ^:no-doc element->map
([element] (element->map element
(fn [content]
(if-let [children (not-empty (filter xml/element? content))]
(map element->map children)
content))))
([element value-fn]
(when (some? element)
{(:tag element) (value-fn (:content element))})))
(defn ^:no-doc assoc-some
[m k v & kvs]
(let [m (if (some? v) (assoc m k v) m)]
(if-let [[k v & kvs] kvs]
(apply assoc-some m k v kvs)
m)))
(defn ^:no-doc element-as-sexp
[element]
(vec (concat [(:tag element)]
(some-> (:attrs element) not-empty vector)
(if (some xml/element? (:content element))
(map element-as-sexp (filter xml/element? (:content element)))
(:content element)))))
(defn ^:no-doc parse-notification-configuration
[xml]
(log/debug "parse-notification-configuration" (pr-str xml))
(if (= :NotificationConfiguration (:tag xml))
(let [config (->> (:content xml)
(filter xml/element?)
(reduce (fn [config element]
(if-let [key (#{:QueueConfiguration :TopicConfiguration :CloudFunctionConfiguration} (:tag element))]
(merge-with concat config {key [(as-> {} conf
(assoc-some conf
:Event
(->> (:content element)
(filter #(and (xml/element? %) (= :Event (:tag %))))
(mapcat :content)
not-empty))
(assoc-some conf
:Filter
(some->> (:content element)
(filter #(and (xml/element? %) (= :Filter (:tag %))))
(first)
(:content)
(filter xml/element?)
(first)
(element-as-sexp)))
(->> (:content element)
(filter #(and (xml/element? %) (#{:Id :Queue :Topic :CloudFunction} (:tag %))))
(mapcat #(vector (:tag %) (->> (:content %) (first))))
(apply assoc conf)))]})
(throw (IllegalArgumentException. "invalid notification configuration"))))
{}))
_ (log/debug "config before conform:" (pr-str config))
config (s/conform ::NotificationConfiguration config)]
(if (= ::s/invalid config)
(throw (IllegalArgumentException. "invalid notification configuration"))
config))
(throw (IllegalArgumentException. "invalid notification configuration"))))
(defn ^:no-doc bucket-put-ops
[bucket request {:keys [konserve clock sqs-server]} request-id]
(sv/go-try sv/S
(let [params (keywordize-keys (uri/query->map (:query-string request)))]
(if (empty? params)
(if-let [existing-bucket (not-empty (sv/<? sv/S (kp/-get-in konserve [:bucket-meta bucket])))]
{:status 409
:headers xml-content-type
:body [:Error
[:Code "BucketAlreadyExists"]
[:Resource (str \/ bucket)]
[:RequestId request-id]]}
(do
(sv/<? sv/S (kp/-assoc-in konserve [:bucket-meta bucket] {:created (ZonedDateTime/now clock)
:object-count 0}))
(sv/<? sv/S (kp/-assoc-in konserve [:version-meta bucket] (sorted-map)))
{:status 200
:headers {"location" (str \/ bucket)}}))
(if-let [existing-bucket (sv/<? sv/S (kp/-get-in konserve [:bucket-meta bucket]))]
(cond (some? (:versioning params))
(if-let [config (some-> (:body request) (xml/parse :namespace-aware false))]
(if (= "VersioningConfiguration" (name (:tag config)))
(if-let [new-state (#{"Enabled" "Suspended"} (some->> config
:content
(filter #(= :Status (:tag %)))
(first)
:content
(first)))]
(let [current-state (:versioning existing-bucket)]
(when (not= current-state new-state)
(sv/<? sv/S (kp/-assoc-in konserve [:bucket-meta bucket :versioning] new-state)))
{:status 200})
{:status 400
:headers xml-content-type
:body [:Error
[:Code "IllegalVersioningConfigurationException"]
[:Resource (str \/ bucket)]
[:RequestId request-id]]})
{:status 400
:headers xml-content-type
:body [:Error
[:Code "IllegalVersioningConfigurationException"]
[:Resource (str \/ bucket)]
[:RequestId request-id]]})
{:status 400
:headers xml-content-type
:body [:Error
[:Code "MissingRequestBodyError"]
[:Resource (str \/ bucket)]
[:RequestId request-id]]})
(some? (:tagging params))
(if-let [config (some-> (:body request) (xml/parse :namespace-aware false))]
(if (= :Tagging (:tag config))
(let [tags (->> (:content config)
(filter #(= :TagSet (:tag %)))
first
:content
(filter #(= :Tag (:tag %)))
(map :content)
(map (fn [tags] (filter #(#{:Key :Value} (:tag %)) tags)))
(map (fn [tags] [(->> tags (filter #(= :Key (:tag %))) first :content first)
(->> tags (filter #(= :Value (:tag %))) first :content first)])))]
(sv/<? sv/S (kp/-assoc-in konserve [:bucket-meta bucket :tags] tags))
{:status 204}))
{:status 400
:headers xml-content-type
:body [:Error
[:Code "MissingRequestBodyError"]
[:Resource (str \/ bucket)]
[:RequestId request-id]]})
(some? (:notification params))
(try
(if-let [config (some-> (:body request) (xml/parse :namespace-aware false) (parse-notification-configuration))]
(cond (or (not-empty (:TopicConfiguration config))
(not-empty (:CloudFunctionConfiguration config)))
(throw (IllegalArgumentException.))
(not-empty (:QueueConfiguration config))
(if-let [queue-metas (when (some? sqs-server)
(->> (:QueueConfiguration config)
(map #(kp/-get-in (-> sqs-server deref :konserve) [:queue-meta (:QueueArn %)]))
(sv/<?* sv/S)))]
(do
(sv/<? sv/S (kp/-assoc-in konserve [:bucket-meta bucket :notifications] (:QueueConfiguration config)))
{:status 200})
(throw (IllegalArgumentException.))))
{:status 400
:headers xml-content-type
:body [:Error
[:Code "MissingRequestBodyError"]
[:Resource (str \/ bucket)]
[:RequestId request-id]]})
(catch IllegalArgumentException _
{:status 400
:headers xml-content-type
:body [:Error [:Code "InvalidArgument"] [:Resource (str \/ bucket)] [:RequestId request-id]]}))
; todo cors - too lazy to parse out the damn xml right now
:else
{:status 200
:headers xml-content-type
:body [:Error [:Code "NotImplemented"] [:Resource (str \/ bucket)] [:RequestId request-id]]})
{:status 404
:headers xml-content-type
:body [:Error [:Code "NoSuchBucket"] [:Resource (str \/ bucket)] [:RequestId request-id]]})))))
(defn ^:no-doc list-objects-v2
[bucket bucket-meta request {:keys [konserve]} request-id]
(sv/go-try sv/S
(let [{:keys [delimiter encoding-type max-keys prefix continuation-token fetch-owner start-after]
:or {max-keys "1000"}}
(keywordize-keys (uri/query->map (:query-string request)))
max-keys (Integer/parseInt max-keys)
encode-key (fn [k] (if (= "url" encoding-type) (uri/uri-encode k) k))
objects (remove nil? (map (fn [[k v]] (when-not (:deleted? (first v))
(assoc (first v) :key k)))
(sv/<? sv/S (kp/-get-in konserve [:version-meta bucket]))))
objects (drop-while (fn [{:keys [key]}]
(neg? (compare key (or continuation-token start-after))))
objects)
objects (if (and (some? delimiter) (some? prefix))
(filter #(string/starts-with? (:key %) prefix) objects)
objects)
common-prefixes (when (some? delimiter)
(->> objects
(map :key)
(dedupe)
(filter #(or (nil? prefix) (string/starts-with? % prefix)))
(filter #(string/includes? (subs % (some-> (or prefix "") count)) delimiter))
(map #(str prefix (subs % (some-> (or prefix "") count) (string/index-of % delimiter (some-> (or prefix "") count)))))))
truncated? (> (count objects) max-keys)
objects (take max-keys objects)
objects (if (some? delimiter)
(if (some? prefix)
(filter #(not (string/includes? (subs (:key %) (count prefix)) delimiter)) objects)
(filter #(not (string/includes? (:key %) delimiter)) objects))
objects)
response [:ListBucketResult {:xmlns s3-xmlns}
[:Name bucket]
[:Prefix prefix]
[:KeyCount (count objects)]
[:IsTruncated truncated?]
[:Delimiter delimiter]
[:MaxKeys max-keys]]
response (if truncated?
(conj response [:NextContinuationToken (:key (last objects))])
response)
response (reduce conj response
(map (fn [object]
(let [obj [:Contents
[:Key (encode-key (:key object))]
[:LastModified (.format (:created object) DateTimeFormatter/ISO_OFFSET_DATE_TIME)]
[:ETag (:etag object)]
[:Size (:content-length object)]
[:StorageClass "STANDARD"]]]
(if (= "true" fetch-owner)
(conj obj [:Owner [:ID "S4"] [:DisplayName "You Know, for Data"]])
obj)))
objects))
response (reduce conj response
(map (fn [prefix]
[:CommonPrefixes [:Prefix prefix]])
common-prefixes))]
{:status 200
:headers xml-content-type
:body response})))
(defn ^:no-doc list-versions
[bucket bucket-meta request {:keys [konserve]} request-id]
(sv/go-try sv/S
(let [{:keys [delimiter encoding-type key-marker max-keys prefix version-id-marker]
:or {max-keys "1000" key-marker "" version-id-marker ""}}
(keywordize-keys (uri/query->map (:query-string request)))
encode-key (fn [k] (if (= "uri" encoding-type)
(uri/uri-encode k)
k))
max-keys (Integer/parseInt max-keys)
versions (sv/<? sv/S (kp/-get-in konserve [:version-meta bucket]))
versions (mapcat (fn [[key versions]]
(let [[current & others] versions]
(cons (assoc current :key key :current? true)
(map #(assoc % :key key) others))))
versions)
versions (drop-while (fn [{:keys [key]}]
(neg? (compare key key-marker)))
versions)
versions (if (empty? version-id-marker)
versions
(let [seen? (atom false)]
(drop-while (fn [{:keys [version-id]}]
(if @seen?
false
(do
(when (= (or version-id "null") version-id-marker)
(reset! seen? true))
true)))
versions)))
versions (if (and (some? delimiter) (some? prefix))
(filter #(string/starts-with? (:key %) prefix) versions)
versions)
common-prefixes (when (some? delimiter)
(->> versions
(map :key)
(dedupe)
(filter #(or (nil? prefix) (string/starts-with? % prefix)))
(filter #(string/includes? (subs % (some-> (or prefix "") count)) delimiter))
(map #(str prefix (subs % (some-> (or prefix "") count) (string/index-of % delimiter (some-> (or prefix "") count)))))))
versions (if (some? delimiter)
(if (some? prefix)
(filter #(not (string/includes? (subs (:key %) (count prefix)) delimiter)) versions)
(filter #(not (string/includes? (:key %) delimiter)) versions))
versions)
truncated? (> (count versions) max-keys)
versions (take max-keys versions)
last-version (when truncated? (last versions))
{:keys [delete-markers versions]} (group-by (fn [{:keys [deleted?]}]
(if deleted? :delete-markers :versions))
versions)
result [:ListVersionsResult {:xmlns s3-xmlns}
[:Name bucket]
[:Prefix prefix]
[:KeyMarker key-marker]
[:VersionIdMarker version-id-marker]
[:MaxKeys max-keys]
[:IsTruncated truncated?]]
result (if truncated?
(conj result [:NextKeyMarker (:key last-version)]
[:NextVersionIdMarker (or (:version-id last-version) "null")])
result)
result (reduce conj result (map (fn [marker]
[:DeleteMarker
[:Key (encode-key (:key marker))]
[:VersionId (or (:version-id marker) "null")]
[:IsLatest (boolean (:current? marker))]
[:LastModified (.format (:created marker) DateTimeFormatter/ISO_OFFSET_DATE_TIME)]
[:Owner [:ID "S4"]]])
delete-markers))
result (reduce conj result (map (fn [version]
[:Version
[:Key (encode-key (:key version))]
[:VersionId (or (:version-id version) "null")]
[:IsLatest (boolean (:current? version))]
[:LastModified (.format (:created version) DateTimeFormatter/ISO_OFFSET_DATE_TIME)]
[:ETag (:etag version)]
[:Size (:content-length version)]
[:Owner [:ID "S4"]]
[:StorageClass "STANDARD"]])
versions))
result (reduce conj result (map (fn [prefix]
[:CommonPrefixes [:Prefix prefix]])
common-prefixes))]
{:status 200
:headers xml-content-type
:body result})))
(defn ^:no-doc list-objects
[bucket bucket-meta request system request-id]
(sv/go-try sv/S
(let [request (update request :query-string
(fn [query-string]
(let [query (uri/query->map query-string)]
(-> query
(assoc "continuation-token" (get query "marker"))
(dissoc "marker")
(assoc "fetch-owner" "true")
(uri/map->query)))))
response (:body (sv/<? sv/S (list-objects-v2 bucket bucket-meta request system request-id)))
response (vec (map (fn [element]
(cond (keyword? element) element
(map? element) element
:else (condp = (first element)
:ContinuationToken (into [:Marker] (rest element))
:NextContinuationToken (into [:NextMarker] (rest element))
element)))
response))]
{:status 200
:headers xml-content-type
:body response})))
(defn bucket-get-ops
[bucket request {:keys [konserve cost-tracker] :as system} request-id]
(sv/go-try sv/S
(let [params (keywordize-keys (uri/query->map (:query-string request)))]
(log/debug :task ::s3-handler :phase :get-bucket-request :bucket bucket :params params)
(if-let [existing-bucket (not-empty (sv/<? sv/S (kp/-get-in konserve [:bucket-meta bucket])))]
(cond
(= "2" (:list-type params))
(do
($/-track-put-request! cost-tracker)
(sv/<? sv/S (list-objects-v2 bucket existing-bucket request system request-id)))
(some? (:versions params))
(do
($/-track-put-request! cost-tracker)
(sv/<? sv/S (list-versions bucket existing-bucket request system request-id)))
(some? (:accelerate params))
(do
($/-track-get-request! cost-tracker)
{:status 200
:headers xml-content-type
:body [:AccelerateConfiguration {:xmlns s3-xmlns}
[:Status {} "Suspended"]]})
(some? (:cors params))
(let [cors (:cors existing-bucket)]
($/-track-get-request! cost-tracker)
{:status 200
:headers xml-content-type
:body [:CORSConfiguration {}
(map (fn [{:keys [header origin method max-age expose-header]}]
[:CORSRule {}
(concat
(map (fn [header] [:AllowedHeader {} header]) header)
(map (fn [origin] [:AllowedOrigin {} origin]) origin)
(map (fn [method] [:AllowedMethod {} method]) method)
(map (fn [max-age] [:MaxAgeSeconds {} max-age]) max-age)
(map (fn [header] [:ExposeHeader {} header]) expose-header))])
cors)]})
(some? (:encryption params)) ; todo maybe support this?
(do
($/-track-get-request! cost-tracker)
{:status 404
:headers xml-content-type
:body [:Error {}
[:Code {} "ServerSideEncryptionConfigurationNotFoundError"]
[:Resource (str \/ bucket)]
[:RequestId request-id]]})
(some? (:acl params)) ; todo maybe support this?
(do
($/-track-get-request! cost-tracker)
{:status 200
:headers xml-content-type
:body [:AccessControlPolicy {}
[:Owner {}
[:ID {} "S4"]
[:DisplayName {} "You Know, for Data"]]
[:AccessControlList {}
[:Grant
[:Grantee {"xmlns:xsi" "http://www.w3.org/2001/XMLSchema-instance"
"xsi:type" "CanonicalUser"}
[:ID {} "S4"]
[:DisplayName {} "You Know, for Data"]]
[:Permission {} "FULL_CONTROL"]]]]})
(some? (:inventory params))
(if (some? (:id params))
(do
($/-track-get-request! cost-tracker)
{:status 200
:headers xml-content-type
:body [:InventoryConfiguration {}]})
(do
($/-track-put-request! cost-tracker)
{:status 200
:headers xml-content-type
:body [:ListInventoryConfigurationsResult {:xmlns s3-xmlns}
[:IsTruncated {} "false"]]}))
(some? (:lifecycle params))
(do
($/-track-get-request! cost-tracker)
{:status 404
:headers xml-content-type
:body [:Error {}
[:Code {} "NoSuchLifecycleConfiguration"]
[:Resource {} (str \/ bucket)]
[:RequestId {} request-id]]})
(some? (:location params))
(do
($/-track-get-request! cost-tracker)
{:status 200
:headers xml-content-type
:body [:LocationConstraint {}]})
(some? (:publicAccessBlock params))
(do
($/-track-get-request! cost-tracker)
{:status 404
:headers xml-content-type
:body [:Error {}
[:Code {} "NoSuchPublicAccessBlockConfiguration"]
[:Resource {} (str \/ bucket)]
[:RequestId {} request-id]]})
(some? (:logging params))
(do
($/-track-get-request! cost-tracker)
{:status 200
:headers xml-content-type
:body [:BucketLoggingStatus {:xmlns "http://doc.s3.amazonaws.com/2006-03-01"}]})
(some? (:metrics params))
(if (some? (:id params))
(do
($/-track-get-request! cost-tracker)
{:status 200
:headers xml-content-type
:body [:MetricsConfiguration {:xmlns s3-xmlns}]})
(do
($/-track-put-request! cost-tracker)
{:status 200
:headers xml-content-type
:body [:ListMetricsConfigurationsResult {:xmlns s3-xmlns}
[:IsTruncated {} "false"]]}))
(some? (:notification params))
(do
($/-track-get-request! cost-tracker)
(let [configs (:notifications existing-bucket)]
(log/debug "returning configs:" (pr-str configs))
{:status 200
:headers xml-content-type
:body (into [:NotificationConfiguration {:xmlns s3-xmlns}]
(map (fn [conf]
(vec (concat [:QueueConfiguration]
(map (fn [event] [:Event event]) (:Event conf))
(some->> (:Filter conf) (vector :Filter) vector)
(some->> (:Id conf) (vector :Id) vector)
(some->> (:Queue conf) (vector :Queue) vector))))
configs))}))
(or (some? (:policyStatus params)) (some? (:policy params)))
(do
($/-track-get-request! cost-tracker)
{:status 404
:headers xml-content-type
:body [:Error {}
[:Code {} "NoSuchBucketPolicy"]
[:Resource (str \/ bucket)]
[:RequestId request-id]]})
(some? (:versions params))
(do
($/-track-put-request! cost-tracker)
{:status 501
:headers xml-content-type
:body [:Error {}
[:Code {} "NotImplemented"]
[:Resource {} (str \/ bucket)]
[:RequestId {} request-id]]})
(some? (:replication params))
(do
($/-track-get-request! cost-tracker)
{:status 404
:headers xml-content-type
:body [:Error {}
[:Code {} "ReplicationConfigurationNotFoundError"]
[:Resource {} (str \/ bucket)]
[:RequestId {} request-id]]})
(some? (:requestPayment params))
(do
($/-track-get-request! cost-tracker)
{:status 200
:headers xml-content-type
:body [:RequestPaymentConfiguration {:xmlns s3-xmlns}
[:Payer {} "BucketOwner"]]})
(some? (:tagging params))
(do
($/-track-get-request! cost-tracker)
(if-let [tags (not-empty (get existing-bucket :tags))]
{:status 200
:headers xml-content-type
:body [:Tagging {}
[:TagSet {}
(map (fn [[key value]]
[:Tag {}
[:Key {} (str key)]
[:Value {} (str value)]])
tags)]]}
{:status 404
:headers xml-content-type
:body [:Error {}
[:Code {} "NoSuchTagSet"]
[:Resource {} (str \/ bucket)]
[:RequestId {} request-id]]}))
(some? (:versioning params))
(do
($/-track-get-request! cost-tracker)
(let [config (get existing-bucket :versioning)]
(cond (nil? config)
{:status 200
:headers xml-content-type
:body [:VersioningConfiguration {:xmlns s3-xmlns}]}
:else
{:status 200
:headers xml-content-type
:body [:VersioningConfiguration {:xmlns s3-xmlns}
[:Status {} config]]})))
(some? (:website params))
(do
($/-track-get-request! cost-tracker)
{:status 404
:headers xml-content-type
:body [:Error {}
[:Code {} "NoSuchWebsiteConfiguration"]
[:Resource {} (str \/ bucket)]
[:RequestId {} request-id]]})
(some? (:analytics params))
(do
($/-track-put-request! cost-tracker)
{:status 200
:headers xml-content-type
:body [:ListBucketAnalyticsConfigurationResult {:xmlns s3-xmlns}
[:IsTruncated {} "false"]]})
(some? (:uploads params))
(do
($/-track-put-request! cost-tracker)
(let [{:keys [delimiter encoding-type max-uploads key-marker prefix upload-id-marker]
:or {max-uploads "1000" key-marker "" upload-id-marker ""}}
params
max-uploads (Integer/parseInt max-uploads)
uploads (sv/<? sv/S (kp/-get-in konserve [:uploads bucket]))
uploads (doall (drop-while (fn [[[key upload-id]]]
(and (not (pos? (compare key key-marker)))
(not (pos? (compare upload-id upload-id-marker)))))
uploads))
uploads (doall (if (and (some? delimiter) (some? prefix))
(filter #(string/starts-with? (first (key %)) prefix) uploads)
uploads))
common-prefixes (doall (when (some? delimiter)
(->> uploads
(map (comp first key))
(filter #(or (nil? prefix) (string/starts-with? % prefix)))
(filter #(string/includes? (subs % (some-> (or prefix "") count)) delimiter))
(map #(str prefix (subs % (some-> (or prefix "") count) (string/index-of % delimiter (some-> (or prefix "") count)))))
(set))))
uploads (doall (if (some? delimiter)
(if (some? prefix)
(filter #(not (string/includes? (subs (first (key %)) (count prefix)) delimiter)) uploads)
(filter #(not (string/includes? (first (key %)) delimiter)) uploads))
uploads))
truncated? (> (count uploads) max-uploads)
uploads (take max-uploads uploads)
result [:ListMultipartUploadsResult {:xmlns s3-xmlns}
[:Bucket {} bucket]
[:KeyMarker {} key-marker]
[:UploadIdMarker {} upload-id-marker]
[:NextKeyMarker {} (if truncated? (first (key (last uploads))) "")]
[:NextUploadIdMarker {} (if truncated? (second (key (last uploads))) "")]
[:MaxUploads {} (str max-uploads)]
[:IsTruncated {} truncated?]]
result (if encoding-type
(conj result [:EncodingType {} encoding-type])
result)
result (reduce conj result
(map (fn [[[key upload-id] {:keys [created]}]]
[:Upload {}
[:Key {} key]
[:UploadId {} upload-id]
[:Initiator {}
[:ID {} "S4"]
[:DisplayName {} "You Know, for Data"]]
[:Owner {}
[:ID {} "S4"]
[:DisplayName {} "You Know, for Data"]]
[:StorageClass {} "STANDARD"]
[:Initiated {} (.format DateTimeFormatter/ISO_OFFSET_DATE_TIME created)]])
uploads))
result (reduce conj result
(map (fn [prefix]
[:CommonPrefixes {}
[:Prefix {} prefix]])
common-prefixes))]
{:status 200
:headers xml-content-type
:body result}))
:else
(do
($/-track-put-request! cost-tracker)
(sv/<? sv/S (list-objects bucket existing-bucket request system request-id))))
(do
($/-track-get-request! cost-tracker)
{:status 404
:headers xml-content-type
:body [:Error {}
[:Code {} "NoSuchBucket"]
[:Resource {} (str \/ bucket)]
[:RequestId {} request-id]]})))))
(def ^:no-doc random (SecureRandom.))
(defn ^:no-doc generate-blob-id
[bucket object]
(let [uuid (UUID/nameUUIDFromBytes (.getBytes (pr-str [bucket object])))
b (byte-array 32)
buf (ByteBuffer/wrap b)]
(.putLong buf (.getMostSignificantBits uuid))
(.putLong buf (.getLeastSignificantBits uuid))
(.putLong buf (System/currentTimeMillis))
(.putLong buf (.nextLong random))
(.encodeToString (Base64/getEncoder) b)))
(defn ^:no-doc trigger-bucket-notification
[sqs-server notification-config notification]
(sv/go-try
sv/S
(when (some? sqs-server)
(doseq [config notification-config]
(when (or (and (= "ObjectCreated:Put" (get notification :eventName))
(some #{"s3:ObjectCreated:Put" "s3:ObjectCreated:*"} (:Event config)))
(and (= "ObjectRemoved:Delete" (get notification :eventName))
(some #{"s3:ObjectRemoved:Delete" "s3:ObjectRemoved:*"} (:Event config)))
(and (= "ObjectRemoved:DeleteMarkerCreated" (get notification :eventName))
(some #{"s3:ObjectRemoved:DeleteMarkerCreated" "s3:ObjectRemoved:*"} (:Event config)))
(every? (fn [rule]
(let [name (second (first (filter #(= :Name (first %)) (rest rule))))
value (second (first (filter #(= :Value (first %)) (rest rule))))]
(if (= "prefix" name)
(string/starts-with? (get-in notification [:s3 :key]) value)
(string/ends-with? (get-in notification [:s3 :key]) value))))
(rest (:Filter config))))
(when-let [queue-meta (sv/<? sv/S (kp/-get-in (-> sqs-server deref :konserve) [:queue-meta (:Queue config)]))]
(let [queues (queues/get-queue (-> sqs-server deref :queues) (:Queue config))
message-id (str (UUID/randomUUID))
body (json/write-str {:Records [(if-let [id (:Id config)]
(assoc-in notification [:s3 :configurationId] id)
notification)]})
body-md5 (util/hex (util/md5 body))]
(queues/offer! queues (queues/->Message message-id message-id body body-md5 {})
(Integer/parseInt (get-in queue-meta [:attributes :DelaySeconds]))
(Integer/parseInt (get-in queue-meta [:attributes :MessageRetentionPeriod]))))))))))
(defn ^:no-doc put-object
[bucket object request {:keys [konserve cost-tracker clock sqs-server]} request-id]
(sv/go-try sv/S
(if-let [existing-bucket (not-empty (sv/<? sv/S (kp/-get-in konserve [:bucket-meta bucket])))]
(let [blob-id (generate-blob-id bucket object)
version-id (when (= "Enabled" (:versioning existing-bucket))
blob-id)
content (some-> (:body request) (ByteStreams/toByteArray))
etag (let [md (MessageDigest/getInstance "MD5")]
(some->> content (.update md))
(->> (.digest md)
(map #(format "%02x" %))
(string/join)))
content-type (get-in request [:headers "content-type"] "binary/octet-stream")
created (ZonedDateTime/now clock)]
(when (some? content)
($/-track-data-in! cost-tracker (count content))
(if (satisfies? kp/PBinaryAsyncKeyValueStore konserve)
(sv/<? sv/S (kp/-bassoc konserve blob-id content))
(sv/<? sv/S (kp/-assoc-in konserve blob-id content))))
(sv/<? sv/S (kp/-update-in konserve [:version-meta bucket object]
(fn [versions]
(cons
{:blob-id blob-id
:version-id version-id
:created (ZonedDateTime/now clock)
:etag (str \" etag \")
:content-type content-type
:content-length (count content)}
(if (= "Enabled" (:versioning existing-bucket))
versions
(vec (filter #(= version-id (:version-id %)) versions)))))))
(sv/<? sv/S (trigger-bucket-notification sqs-server (:notifications existing-bucket)
{:eventVersion "2.1"
:eventSource "aws:s3"
:awsRegion "s4"
:eventTime (.format created DateTimeFormatter/ISO_OFFSET_DATE_TIME)
:eventName "ObjectCreated:Put"
:userIdentity {:principalId "S4"}
:requestParameters {:sourceIPAddress (:remote-addr request)}
:responseElements {:x-amz-request-id request-id}
:s3 {:s3SchemaVersion "1.0"
:bucket {:name bucket
:ownerIdentity {:principalId "S4"}
:arn bucket}
:object {:key object
:size (count content)
:eTag etag
:versionId (or version-id "null")
:sequencer "00"}}}))
{:status 200
:headers (as-> {"ETag" etag} h
(if (some? version-id)
(assoc h "x-amz-version-id" version-id)
h))})
{:status 404
:headers xml-content-type
:body [:Error
[:Code "NoSuchBucket"]
[:Resource (str \/ bucket)]
[:RequestId request-id]]})))
(defn ^:no-doc parse-date-header
[d]
(try
(ZonedDateTime/parse d DateTimeFormatter/RFC_1123_DATE_TIME)
(catch DateTimeParseException _
(try
(ZonedDateTime/parse d auth/RFC-1036-FORMATTER)
(catch DateTimeParseException _
(ZonedDateTime/parse d auth/ASCTIME-FORMATTER))))))
(defn ^:no-doc parse-range
[r]
(let [[begin end] (rest (re-matches #"bytes=([0-9]+)-([0-9]*)" r))]
(when (some? begin)
[(Long/parseLong begin)
(some-> (not-empty end) (Long/parseLong))])))
(defn ^:no-doc unwrap-input-stream
[value]
(log/debug :task ::unwrap-input-stream :value value)
(cond (instance? InputStream value) value
(map? value) (recur (:input-stream value))
(bytes? value) (ByteArrayInputStream. value)))
(defn ^:no-doc get-object
[bucket object request {:keys [konserve cost-tracker]} request-id with-body?]
(sv/go-try sv/S
($/-track-get-request! cost-tracker)
(if-let [existing-bucket (not-empty (sv/<? sv/S (kp/-get-in konserve [:bucket-meta bucket])))]
(if-let [versions (sv/<? sv/S (kp/-get-in konserve [:version-meta bucket object]))]
(let [params (keywordize-keys (uri/query->map (:query-string request)))]
(cond (some? (:acl params))
(as-> {:status 200
:headers xml-content-type} r
(if with-body?
(assoc r :body [:AccessControlPolicy
[:Owner
[:ID "S4"]
[:DisplayName "You Know, for Data"]]
[:AccessControlList
[:Grant
[:Grantee {"xmlns:xsi" "http://www.w3.org/2001/XMLSchema-instance"
"xsi:type" "CanonicalUser"}
[:ID "S4"]
[:DisplayName "You Know, for Data"]]
[:Permission "FULL_CONTROL"]]]])
r))
(or (some? (:legal-hold params))
(some? (:retention params))
(some? (:torrent params))
(some? (:tagging params)))
(as-> {:status 501
:headers xml-content-type} r
(if with-body?
(assoc r :body [:Error
[:Code "NotImplemented"]
[:Resource (str \/ bucket \/ object)]
[:RequestId request-id]])
r))
:else
(if-let [version (let [v (if-let [version-id (:versionId params)]
(first (filter #(= version-id (:version-id %)) versions))
(first versions))]
(log/debug :task ::get-object :phase :got-version :version v)
v)]
(if (:deleted? version)
(as-> {:status 404
:headers (as-> xml-content-type h
(if (some? (:versioning existing-bucket))
(assoc h "x-amz-version-id" (or (:version-id version) "null")
"x-amz-delete-marker" "true")
h))} r
(if with-body?
(assoc r :body [:Error
[:Code "NoSuchKey"]
[:Resource (str \/ bucket \/ object)]
[:RequestId request-id]])
r))
(let [if-modified-since (some-> (get-in request [:headers "if-modified-since"]) parse-date-header)
if-unmodified-since (some-> (get-in request [:headers "if-unmodified-since"]) parse-date-header)
if-match (get-in request [:headers "if-match"])
if-none-match (get-in request [:headers "if-none-match"])
content-type (or (:response-content-type params)
(:content-type version))
headers (as-> {"content-type" content-type
"last-modified" (.format DateTimeFormatter/ISO_OFFSET_DATE_TIME (:created version))
"accept-ranges" "bytes"
"content-length" (str (:content-length version))} h
(if-let [etag (:etag version)]
(assoc h "etag" etag)
h)
(if-let [v (:response-content-language params)]
(assoc h "content-language" v)