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Commit16322d1

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committed
feat: check agent API version on connection
1 parent0b0b1a4 commit16322d1

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11 files changed

+58
-18
lines changed

11 files changed

+58
-18
lines changed

‎agent/proto/version.go‎

Lines changed: 10 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,10 @@
1+
package proto
2+
3+
import (
4+
"github.com/coder/coder/v2/tailnet/proto"
5+
)
6+
7+
// CurrentVersion is the current version of the agent API. It is tied to the
8+
// tailnet API version to avoid confusion, since agents connect to the tailnet
9+
// API over the same websocket.
10+
varCurrentVersion=proto.CurrentVersion

‎coderd/workspaceagents.go‎

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -43,6 +43,7 @@ import (
4343
"github.com/coder/coder/v2/codersdk"
4444
"github.com/coder/coder/v2/codersdk/agentsdk"
4545
"github.com/coder/coder/v2/tailnet"
46+
"github.com/coder/coder/v2/tailnet/proto"
4647
)
4748

4849
// @Summary Get workspace agent by ID
@@ -1162,7 +1163,7 @@ func (api *API) workspaceAgentClientCoordinate(rw http.ResponseWriter, r *http.R
11621163
ifqv!="" {
11631164
version=qv
11641165
}
1165-
iferr:=tailnet.CurrentVersion.Validate(version);err!=nil {
1166+
iferr:=proto.CurrentVersion.Validate(version);err!=nil {
11661167
httpapi.Write(ctx,rw,http.StatusBadRequest, codersdk.Response{
11671168
Message:"Unknown or unsupported API version",
11681169
Validations: []codersdk.ValidationError{

‎coderd/workspaceagentsrpc.go‎

Lines changed: 18 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -16,6 +16,7 @@ import (
1616
"nhooyr.io/websocket"
1717

1818
"cdr.dev/slog"
19+
"github.com/coder/coder/v2/agent/proto"
1920
"github.com/coder/coder/v2/coderd/agentapi"
2021
"github.com/coder/coder/v2/coderd/database"
2122
"github.com/coder/coder/v2/coderd/database/dbauthz"
@@ -37,6 +38,23 @@ import (
3738
func (api*API)workspaceAgentRPC(rw http.ResponseWriter,r*http.Request) {
3839
ctx:=r.Context()
3940

41+
version:=r.URL.Query().Get("version")
42+
ifversion=="" {
43+
httpapi.Write(ctx,rw,http.StatusBadRequest, codersdk.Response{
44+
Message:"Missing required query parameter: version",
45+
})
46+
return
47+
}
48+
iferr:=proto.CurrentVersion.Validate(version);err!=nil {
49+
httpapi.Write(ctx,rw,http.StatusBadRequest, codersdk.Response{
50+
Message:"Unknown or unsupported API version",
51+
Validations: []codersdk.ValidationError{
52+
{Field:"version",Detail:err.Error()},
53+
},
54+
})
55+
return
56+
}
57+
4058
api.WebsocketWaitMutex.Lock()
4159
api.WebsocketWaitGroup.Add(1)
4260
api.WebsocketWaitMutex.Unlock()

‎codersdk/agentsdk/agentsdk.go‎

Lines changed: 9 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -21,6 +21,7 @@ import (
2121
"tailscale.com/tailcfg"
2222

2323
"cdr.dev/slog"
24+
"github.com/coder/coder/v2/agent/proto"
2425
"github.com/coder/coder/v2/codersdk"
2526
drpcsdk"github.com/coder/coder/v2/codersdk/drpc"
2627
"github.com/coder/retry"
@@ -281,18 +282,22 @@ func (c *Client) DERPMapUpdates(ctx context.Context) (<-chan DERPMapUpdate, io.C
281282
},nil
282283
}
283284

284-
// Listen connects to the workspace agentcoordinate WebSocket
285+
// Listen connects to the workspace agentAPI WebSocket
285286
// that handles connection negotiation.
286287
func (c*Client)Listen(ctx context.Context) (drpc.Conn,error) {
287-
coordinateURL,err:=c.SDK.URL.Parse("/api/v2/workspaceagents/me/rpc")
288+
rpcURL,err:=c.SDK.URL.Parse("/api/v2/workspaceagents/me/rpc")
288289
iferr!=nil {
289290
returnnil,xerrors.Errorf("parse url: %w",err)
290291
}
292+
q:=rpcURL.Query()
293+
q.Add("version",proto.CurrentVersion.String())
294+
rpcURL.RawQuery=q.Encode()
295+
291296
jar,err:=cookiejar.New(nil)
292297
iferr!=nil {
293298
returnnil,xerrors.Errorf("create cookie jar: %w",err)
294299
}
295-
jar.SetCookies(coordinateURL, []*http.Cookie{{
300+
jar.SetCookies(rpcURL, []*http.Cookie{{
296301
Name:codersdk.SessionTokenCookie,
297302
Value:c.SDK.SessionToken(),
298303
}})
@@ -301,7 +306,7 @@ func (c *Client) Listen(ctx context.Context) (drpc.Conn, error) {
301306
Transport:c.SDK.HTTPClient.Transport,
302307
}
303308
// nolint:bodyclose
304-
conn,res,err:=websocket.Dial(ctx,coordinateURL.String(),&websocket.DialOptions{
309+
conn,res,err:=websocket.Dial(ctx,rpcURL.String(),&websocket.DialOptions{
305310
HTTPClient:httpClient,
306311
})
307312
iferr!=nil {

‎codersdk/workspaceagents.go‎

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -22,6 +22,7 @@ import (
2222
"cdr.dev/slog"
2323
"github.com/coder/coder/v2/coderd/tracing"
2424
"github.com/coder/coder/v2/tailnet"
25+
"github.com/coder/coder/v2/tailnet/proto"
2526
"github.com/coder/retry"
2627
)
2728

@@ -314,7 +315,7 @@ func (c *Client) DialWorkspaceAgent(dialCtx context.Context, agentID uuid.UUID,
314315
returnnil,xerrors.Errorf("parse url: %w",err)
315316
}
316317
q:=coordinateURL.Query()
317-
q.Add("version",tailnet.CurrentVersion.String())
318+
q.Add("version",proto.CurrentVersion.String())
318319
coordinateURL.RawQuery=q.Encode()
319320
closedCoordinator:=make(chanstruct{})
320321
// Must only ever be used once, send error OR close to avoid

‎enterprise/coderd/workspaceproxycoordinate.go‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -11,7 +11,7 @@ import (
1111
"github.com/coder/coder/v2/coderd/util/apiversion"
1212
"github.com/coder/coder/v2/codersdk"
1313
"github.com/coder/coder/v2/enterprise/wsproxy/wsproxysdk"
14-
agpl"github.com/coder/coder/v2/tailnet"
14+
"github.com/coder/coder/v2/tailnet/proto"
1515
)
1616

1717
// @Summary Agent is legacy
@@ -59,7 +59,7 @@ func (api *API) workspaceProxyCoordinate(rw http.ResponseWriter, r *http.Request
5959
ifqv!="" {
6060
version=qv
6161
}
62-
iferr:=agpl.CurrentVersion.Validate(version);err!=nil {
62+
iferr:=proto.CurrentVersion.Validate(version);err!=nil {
6363
httpapi.Write(ctx,rw,http.StatusBadRequest, codersdk.Response{
6464
Message:"Unknown or unsupported API version",
6565
Validations: []codersdk.ValidationError{

‎enterprise/wsproxy/wsproxysdk/wsproxysdk.go‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -439,7 +439,7 @@ func (c *Client) DialCoordinator(ctx context.Context) (agpl.MultiAgentConn, erro
439439
returnnil,xerrors.Errorf("parse url: %w",err)
440440
}
441441
q:=coordinateURL.Query()
442-
q.Add("version",agpl.CurrentVersion.String())
442+
q.Add("version",proto.CurrentVersion.String())
443443
coordinateURL.RawQuery=q.Encode()
444444
coordinateHeaders:=make(http.Header)
445445
tokenHeader:=codersdk.SessionTokenHeader

‎enterprise/wsproxy/wsproxysdk/wsproxysdk_test.go‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -194,7 +194,7 @@ func TestDialCoordinator(t *testing.T) {
194194
return
195195
}
196196
version:=r.URL.Query().Get("version")
197-
if!assert.Equal(t,version,agpl.CurrentVersion.String()) {
197+
if!assert.Equal(t,version,proto.CurrentVersion.String()) {
198198
return
199199
}
200200
nc:=websocket.NetConn(r.Context(),conn,websocket.MessageBinary)

‎tailnet/coordinator_test.go‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -460,7 +460,7 @@ func TestRemoteCoordination(t *testing.T) {
460460

461461
serveErr:=make(chanerror,1)
462462
gofunc() {
463-
err:=svc.ServeClient(ctx,tailnet.CurrentVersion.String(),sC,clientID,agentID)
463+
err:=svc.ServeClient(ctx,proto.CurrentVersion.String(),sC,clientID,agentID)
464464
serveErr<-err
465465
}()
466466

‎tailnet/proto/version.go‎

Lines changed: 12 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,12 @@
1+
package proto
2+
3+
import (
4+
"github.com/coder/coder/v2/coderd/util/apiversion"
5+
)
6+
7+
const (
8+
CurrentMajor=2
9+
CurrentMinor=0
10+
)
11+
12+
varCurrentVersion=apiversion.New(CurrentMajor,CurrentMinor).WithBackwardCompat(1)

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