/
handler.go
50 lines (41 loc) · 1.62 KB
/
handler.go
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
// Copyright 2016 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package apihttp
import (
"net/http"
"github.com/juju/juju/state"
)
// NewHandlerArgs holds the args to the func in the NewHandler
// field of HandlerSpec.
type NewHandlerArgs struct {
// Connect is the function that is used to connect to Juju's state
// for the given HTTP request.
Connect func(*http.Request) (*state.State, state.Entity, error)
}
// HandlerConstraints describes conditions under which a handler
// may operate.
type HandlerConstraints struct {
// AuthKind defines the kind of authenticated "user" that the
// handler supports. This correlates directly to entities, as
// identified by tag kinds (e.g. names.UserTagKind). The empty
// string indicates support for unauthenticated requests.
AuthKind string
// StrictValidation is the value that will be used for the handler's
// httpContext (see apiserver/httpcontext.go).
StrictValidation bool
// ControllerModelOnly is the value that will be used for the handler's
// httpContext (see apiserver/httpcontext.go).
ControllerModelOnly bool
}
// HandlerSpec defines an HTTP handler for a specific endpoint
// on Juju's HTTP server. Such endpoints facilitate behavior that is
// not supported through normal (websocket) RPC. That includes file
// transfer.
type HandlerSpec struct {
// Constraints are the handler's constraints.
Constraints HandlerConstraints
// NewHandler returns a new HTTP handler for the given args.
// The function is idempotent--if given the same args, it will
// produce an equivalent handler each time.
NewHandler func(NewHandlerArgs) http.Handler
}