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
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.controller.proxy;
import ai.vespa.http.HttpURL;
import ai.vespa.http.HttpURL.Path;
import ai.vespa.http.HttpURL.Query;
import com.yahoo.container.jdisc.HttpRequest;
import com.yahoo.text.Text;
import java.io.InputStream;
import java.net.URI;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import static com.yahoo.jdisc.http.HttpRequest.Method;
/**
* Keeping information about the calls that are being proxied.
* A request is of form /zone/v2/[environment]/[region]/[config-server-path]
*
* @author Haakon Dybdahl
*/
public class ProxyRequest {
private final Method method;
private final HttpURL requestUri;
private final Map<String, List<String>> headers;
private final InputStream requestData;
private final List<URI> targets;
private final Path targetPath;
ProxyRequest(Method method, URI uri, Map<String, List<String>> headers, InputStream body, List<URI> targets, Path path) {
this.requestUri = HttpURL.from(uri);
if ( requestUri.path().length() < path.length()
|| ! requestUri.path().tail(path.length()).equals(path)) {
throw new IllegalArgumentException(Text.format("Request %s does not end with proxy %s", requestUri.path(), path));
}
if (targets.isEmpty()) {
throw new IllegalArgumentException("targets must be non-empty");
}
this.method = Objects.requireNonNull(method);
this.headers = Objects.requireNonNull(headers);
this.requestData = body;
this.targets = List.copyOf(targets);
this.targetPath = path;
}
public Method getMethod() {
return method;
}
public Map<String, List<String>> getHeaders() {
return headers;
}
public InputStream getData() {
return requestData;
}
public List<URI> getTargets() {
return targets;
}
public URI createConfigServerRequestUri(URI baseURI) {
return HttpURL.from(baseURI).withPath(targetPath).withQuery(requestUri.query()).asURI();
}
public URI getControllerPrefixUri() {
Path prefixPath = requestUri.path().cut(targetPath.length()).withTrailingSlash();
return requestUri.withPath(prefixPath).withQuery(Query.empty()).asURI();
}
@Override
public String toString() {
return "[targets: " + targets + " request: " + targetPath + "]";
}
/** Create a proxy request that repeatedly tries a single target */
public static ProxyRequest tryOne(URI target, Path path, HttpRequest request) {
return new ProxyRequest(request.getMethod(), request.getUri(), request.getJDiscRequest().headers(),
request.getData(), List.of(target), path);
}
}
|
