This repository has been archived by the owner on Mar 22, 2023. It is now read-only.
forked from mpenet/jet
-
Notifications
You must be signed in to change notification settings - Fork 4
/
http.clj
531 lines (466 loc) · 17.4 KB
/
http.clj
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
(ns qbits.jet.client.http
(:refer-clojure :exclude [get])
(:require
[cheshire.core :as json]
[clojure.core.async :as async]
[clojure.core.async.impl.protocols :as protocols]
[clojure.xml :as xml]
[qbits.jet.client.ssl :as ssl]
[qbits.jet.client.auth :as auth]
[qbits.jet.client.cookies :as cookies]
[qbits.jet.util :as util])
(:import
(clojure.lang
Sequential)
(java.net
HttpCookie)
(java.util.concurrent
TimeUnit)
(java.nio
ByteBuffer)
(java.nio.charset
Charset)
(java.io
ByteArrayInputStream
ByteArrayOutputStream
IOException)
(org.eclipse.jetty.client
HttpClient
HttpRequest
HttpResponse)
(org.eclipse.jetty.util
Fields)
(org.eclipse.jetty.client.util
BytesContentProvider
ByteBufferContentProvider
DeferredContentProvider
FormContentProvider
InputStreamContentProvider
MultiPartContentProvider
PathContentProvider
StringContentProvider)
(org.eclipse.jetty.http
HttpField
HttpVersion)
(org.eclipse.jetty.client.api
Authentication$Result
ContentProvider
Request
Request$FailureListener
Response
Response$CompleteListener
Response$DemandedContentListener
Response$HeadersListener)
(org.eclipse.jetty.client.http
HttpClientTransportOverHTTP)))
(def ^:const array-class (class (clojure.core/byte-array 0)))
(def default-buffer-size (* 1024 1024 4))
(def default-insecure-ssl-context-factory
(delay (ssl/insecure-ssl-context-factory)))
(defn ^:no-doc ^array-class
byte-buffer->bytes
[^ByteBuffer bb]
(let [ba (byte-array (.remaining bb))]
(.get bb ba)
ba))
(defn ^:no-doc byte-array->string
[^bytes bb]
(String. bb "UTF-8"))
(defn ^:no-doc decode-body [bb as]
(case as
:bytes bb
:input-stream (ByteArrayInputStream. bb)
:string (byte-array->string bb)
:json (json/parse-string (byte-array->string bb) true)
:json-str (json/parse-string (byte-array->string bb) false)
:xml (xml/parse (ByteArrayInputStream. bb))
(ByteBuffer/wrap bb)))
(defn fold-chunks+decode-xform [as buffer-size]
(fn [reduction-function]
(let [ba (ByteArrayOutputStream.)
state (atom ::open)
retrieve-data (fn [] (decode-body (.toByteArray ba) as))]
(fn
([] (reduction-function))
([result]
(when (compare-and-set! state ::open ::closed)
(reduction-function result (retrieve-data))))
([result chunk]
(.write ba chunk)
(if (>= (.size ba) buffer-size)
(let [data (retrieve-data)]
(.reset ba)
(reduction-function result data))
(reduction-function result)))))))
(defn decode-chunk-xform
[as]
(fn [reduction-function]
(fn
([] (reduction-function))
([result]
(reduction-function result))
([result chunk]
(reduction-function result (decode-body chunk as))))))
(defn- make-response
[request ^Response response abort-ch body-ch error-chan trailers-ch]
(let [headers (util/http-fields->map (.getHeaders response))
status (.getStatus response)]
{:abort-ch abort-ch
:body body-ch
:error-chan error-chan
:headers headers
:request request
:status status
:trailers (when (and (instance? HttpRequest request)
(util/trailers-supported? (some-> request .getVersion .asString) headers))
trailers-ch)}))
(defprotocol PRequest
(encode-chunk [x])
(encode-body [x])
(encode-content-type [x]))
(extend-protocol PRequest
(Class/forName "[B")
(encode-chunk [x]
(ByteBuffer/wrap x))
(encode-body [ba]
(BytesContentProvider. nil (into-array array-class [ba])))
ByteBuffer
(encode-chunk [x] x)
(encode-body [bb]
(ByteBufferContentProvider. nil (into-array ByteBuffer [bb])))
java.nio.file.Path
(encode-body [p]
(PathContentProvider. nil p))
java.io.InputStream
(encode-body [s]
(InputStreamContentProvider. s))
String
(encode-chunk [x]
(ByteBuffer/wrap (.getBytes x "UTF-8")))
(encode-body [x]
(StringContentProvider. nil x (Charset/forName "UTF-8")))
(encode-content-type [x]
(str "Content-Type: " x))
Number
(encode-chunk [x] (encode-chunk (str x)))
(encode-body [x] (encode-body (str x)))
Sequential
(encode-content-type [[content-type charset]]
(str (encode-content-type content-type) "; charset=" (name charset)))
clojure.core.async.impl.channels.ManyToManyChannel
(encode-body [ch]
(let [cp (DeferredContentProvider. (into-array ByteBuffer nil))]
(async/go
(loop []
(if-let [chunk (async/<! ch)]
(do (.offer ^DeferredContentProvider cp
(encode-chunk chunk))
(recur))
(.close ^DeferredContentProvider cp))))
cp))
Object
(encode-chunk [x]
(throw (ex-info "Chunk type no supported by encoder" {})))
(encode-body [x]
(throw (ex-info "Body type no supported by encoder" {})))
(encode-content-type [content-type]
(encode-content-type (subs (str content-type) 1))))
(defn ^:no-doc add-cookies!
[^HttpClient client url cookies]
(cookies/add-cookies! (.getCookieStore client)
url cookies))
(defn ^:no-doc add-auth!
[^HttpClient client url {:keys [type user password realm]}]
(.addAuthentication
(.getAuthenticationStore client)
(case type
:digest (auth/digest-auth url realm user password)
:basic (auth/basic-auth url realm user password))))
(defn ^HttpClient client
([{:keys [address-resolution-timeout
client-name
connect-timeout
executor
follow-redirects?
max-redirects
idle-timeout
stop-timeout
max-connections-per-destination
max-requests-queued-per-destination
request-buffer-size
response-buffer-size
scheduler
user-agent
cookie-store
remove-idle-destinations?
dispatch-io?
tcp-no-delay?
strict-event-ordering?
ssl-context-factory
transport]
:or {remove-idle-destinations? true
dispatch-io? true
follow-redirects? true
tcp-no-delay? true
strict-event-ordering? false
ssl-context-factory @default-insecure-ssl-context-factory
transport (HttpClientTransportOverHTTP.)
request-buffer-size default-buffer-size
response-buffer-size default-buffer-size}
:as r}]
(let [client (HttpClient. transport ssl-context-factory)]
(when address-resolution-timeout
(.setAddressResolutionTimeout client (long address-resolution-timeout)))
(when client-name
(.setName client client-name))
(when connect-timeout
(.setConnectTimeout client (long connect-timeout)))
(when max-redirects
(.setMaxRedirects client (int max-redirects)))
(when idle-timeout
(.setIdleTimeout client (long idle-timeout)))
(when max-connections-per-destination
(.setMaxConnectionsPerDestination client (int max-connections-per-destination)))
(when max-requests-queued-per-destination
(.setMaxRequestsQueuedPerDestination client (int max-requests-queued-per-destination)))
(when request-buffer-size
(.setRequestBufferSize client (int request-buffer-size)))
(when response-buffer-size
(.setResponseBufferSize client (int response-buffer-size)))
(when scheduler
(.setScheduler client scheduler))
(when user-agent
(.setUserAgentField client (HttpField. "User-Agent" ^String user-agent)))
(when stop-timeout
(.setStopTimeout client (long stop-timeout)))
(when cookie-store
(.setCookieStore client cookie-store))
(when executor
(.setExecutor client executor))
(.setRemoveIdleDestinations client remove-idle-destinations?)
(.setDispatchIO client dispatch-io?)
(.setFollowRedirects client follow-redirects?)
(.setStrictEventOrdering client strict-event-ordering?)
(.setTCPNoDelay client tcp-no-delay?)
(.start client)
client))
([] (client {})))
(defn stop-client!
[^HttpClient cl]
(.stop cl))
(defn- set-query-string!
"Configures the query string in the request object directly."
[^HttpRequest request query-string]
(doto (.getDeclaredField HttpRequest "query")
(.setAccessible true)
(.set request query-string)))
(defn- track-response-trailers
"Asynchronously loops and looks for presence of trailers in the response.
Please see https://github.com/eclipse/jetty.project/issues/3842 for details on why we need this.
When trailers are available, they are propagated to the trailers channel and the request input body is closed.
The assumption is once trailers are available, the server is no longer interested in any of the request input data.
We explicitly avoid closing the response body channel since this introduces a race in the asynchronous
processing of any data streamed by the backend.
Instead, closing the request content eventually triggers the response complete listeners after all the
response bytes have been streamed."
[response-trailers-ch response-body-ch content-provider-promise response]
(async/go
(let [trailer-interval-ms 1000]
(loop []
;; iterate and check if trailers are available
(async/<! (async/timeout trailer-interval-ms))
(let [trailers (.getTrailers ^HttpResponse response)]
(if trailers
(do
(async/>! response-trailers-ch (util/http-fields->map trailers))
;; close the input stream as server has already responded with a trailer
(some-> content-provider-promise (deref 0 nil) (.close)))
(when-not (protocols/closed? response-body-ch)
(recur))))))))
(defn request
[^HttpClient client
{:keys [url method query-string form-params headers body trailers-fn
content-type
abort-ch
accept
as
idle-timeout
timeout
agent
follow-redirects?
fold-chunked-response?
fold-chunked-response-buffer-size
^Authentication$Result auth
cookies
multipart
version]
:or {method :get
as :string
follow-redirects? true
fold-chunked-response? true
fold-chunked-response-buffer-size Integer/MAX_VALUE}
:as request-map}]
(let [ch (async/promise-chan)
error-ch (async/promise-chan)
body-ch (async/chan 1
(if fold-chunked-response?
(fold-chunks+decode-xform as fold-chunked-response-buffer-size)
(decode-chunk-xform as)))
trailers-ch (async/promise-chan)
^Request request (.newRequest client ^String url)
trailers-supported? (and trailers-fn (instance? HttpRequest request))
close-request-channels! (fn close-request-channels! []
(async/close! error-ch)
(async/close! body-ch)
(async/close! trailers-ch)
(when abort-ch
(async/close! abort-ch))
(async/close! ch))
report-error! (fn report-error! [throwable]
(async/>!! ch {:error throwable})
(async/>!! error-ch {:error throwable}))
content-provider-promise (promise)
assign-content-provider! (fn assign-content-provider! [content-provider]
(deliver content-provider-promise content-provider)
content-provider)]
(some->> version
HttpVersion/fromString
(.version request))
(when abort-ch
(async/go-loop []
(when-let [abort-request (async/<! abort-ch)]
(let [[cause callback] abort-request
aborted? (.abort request cause)]
(when callback
(callback aborted?))
(when aborted?
(report-error! cause))
(recur)))))
(.followRedirects request follow-redirects?)
(when timeout
(.timeout request (long timeout) TimeUnit/MILLISECONDS))
(when idle-timeout
(.idleTimeout request (long idle-timeout) TimeUnit/MILLISECONDS))
(when accept
(.accept request (into-array String [(name accept)])))
(when agent
(.agent request agent))
(.method request (name method))
(when (seq form-params)
(.content request
(FormContentProvider. (let [f (Fields.)]
(doseq [[k v] form-params]
(.add f (name k) (str v)))
f))))
(when (seq multipart)
(.content request
(let [provider (MultiPartContentProvider.)]
(doseq [[k v] multipart]
(let [content (cond
(string? v) (StringContentProvider. v)
(instance? ContentProvider v) v
:else (throw (ex-info "Invalid multipart value" {k v})))]
(.addFieldPart provider k content nil)))
(.close provider)
provider)))
(do
(when body
(->> (encode-body body)
(assign-content-provider!)
(.content request)))
(when trailers-supported?
(.trailers ^HttpRequest request (util/trailers-fn->supplier trailers-fn))))
(doseq [[k v] headers]
(if (coll? v)
(doseq [v' v]
(.header request (name k) (str v')))
(.header request (name k) (str v))))
(when content-type
(.header request "Content-Type" (name content-type)))
(when auth
(.apply auth request))
(if (string? query-string)
(set-query-string! request query-string)
(doseq [[k v] query-string]
(if (coll? v)
(doseq [v' v]
(.param request (name k) (str v')))
(.param request (name k) (str v)))))
(when cookies
(doseq [[name value] cookies]
(.cookie request (HttpCookie. name value))))
(.onResponseContentDemanded request
(reify Response$DemandedContentListener
(onContent [_ _ demand byte-buffer callback]
(if (protocols/closed? body-ch)
(let [ex (IOException. "Body channel closed unexpectedly")]
(report-error! ex)
(.failed callback ex)
(.abort request ex))
(async/put! body-ch (byte-buffer->bytes byte-buffer)
(fn [_]
(.succeeded callback)
(.accept demand 1)))))))
(.onResponseHeaders request
(reify Response$HeadersListener
(onHeaders [_ response]
(async/put! ch (make-response request response abort-ch body-ch error-ch trailers-ch))
(when (util/http2-request? version)
(track-response-trailers trailers-ch body-ch content-provider-promise response)))))
(.onRequestFailure request
(reify Request$FailureListener
(onFailure [_ _ throwable]
(report-error! throwable))))
(.send request
(reify Response$CompleteListener
(onComplete [_ result]
(when (not (.isSucceeded result))
(report-error! (.getFailure result)))
(when-let [response (.getResponse result)]
(when (instance? HttpResponse response)
(when-let [trailers (.getTrailers ^HttpResponse response)]
(async/>!! trailers-ch (util/http-fields->map trailers)))))
(close-request-channels!))))
ch))
(defn get
([client url request-map]
(request client
(into {:method :get :url url}
request-map)))
([client url]
(get client url {})))
(defn post
([client url request-map]
(request client
(into {:method :post :url url}
request-map)))
([client url]
(post client url {})))
(defn put
([client url request-map]
(request client
(into {:method :put :url url}
request-map)))
([client url]
(put client url {})))
(defn delete
([client url request-map]
(request client
(into {:method :delete :url url}
request-map)))
([client url]
(delete client url {})))
(defn head
([client url request-map]
(request client
(into {:method :head :url url}
request-map)))
([client url]
(head client url {})))
(defn trace
([client url request-map]
(request client
(into {:method :trace :url url}
request-map)))
([client url]
(trace client url {})))