/
headers.clj
78 lines (72 loc) · 2.95 KB
/
headers.clj
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;; Lazy headers.
; Copyright 2010 Hubert Iwaniuk
;
; Licensed under the Apache License, Version 2.0 (the "License");
; you may not use this file except in compliance with the License.
; You may obtain a copy of the License at
;
; http://www.apache.org/licenses/LICENSE-2.0
;
; Unless required by applicable law or agreed to in writing, software
; distributed under the License is distributed on an "AS IS" BASIS,
; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
; See the License for the specific language governing permissions and
; limitations under the License.
(ns http.async.client.headers "Asynchrounous HTTP Client - Clojure - Lazy headers"
{:author "Hubert Iwaniuk"}
(:import (com.ning.http.client HttpResponseHeaders FluentCaseInsensitiveStringsMap)))
(defn- kn [k]
(if (keyword? k) (name k) k))
(defn- v [#^FluentCaseInsensitiveStringsMap h k]
(let [vals (.get h (kn k))]
(if (= 1 (count vals))
(first vals)
(into [] vals))))
;; Convertion of AHC Headers to lazy map.
(defn convert-headers-to-map
"Converts Http Response Headers to lazy map."
[#^HttpResponseHeaders headers]
(let [hds (.getHeaders headers)
names (.keySet hds)]
(proxy [clojure.lang.APersistentMap]
[]
(containsKey [k] (.containsKey hds (kn k)))
(entryAt [k] (when (.containsKey hds (kn k))
(proxy [clojure.lang.MapEntry]
[k nil]
(val [] (v hds k)))))
(valAt
([k] (v hds k))
([k default] (if (.containsKey hds k)
(v hds k)
default)))
(cons [m] (throw "Headers are read only."))
(count [] (.size hds))
(assoc [k v] (throw "Headers are read only."))
(without [k] (throw "Headers are read only"))
(seq [] ((fn thisfn [plseq]
(lazy-seq
(when-let [pseq (seq plseq)]
(let [k (keyword (.toLowerCase (first pseq)))]
(cons (proxy [clojure.lang.MapEntry]
[k nil]
(val [] (v hds k)))
(thisfn (rest pseq)))))))
names)))))
;; Creates cookies from headers.
(defn create-cookies
"Creates cookies from headers."
[headers]
(if (contains? headers :set-cookie)
(for [cookie-string (let [set-cookie (:set-cookie headers)]
(if (string? set-cookie) (vector set-cookie) set-cookie))]
(let [name-token (atom true)]
(into {}
(for [#^String cookie (.split cookie-string ";")]
(let [keyval (map (fn [#^String x] (.trim x)) (.split cookie "=" 2))]
(if @name-token
(do
(compare-and-set! name-token true false)
{:name (first keyval) :value (second keyval)})
[(keyword (first keyval)) (second keyval)]))))))
(println "No Set-Cookie header.")))