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return bad function http resp error (#728)

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* return bad function http resp error

this was being thrown into the fn server logs but it's relatively easy to get
this to crop up if a function user forgets that they left a `println` laying
around that gets written to stdout, it garbles the http (or json, in its case)
output and they just see 'internal server error'. for certain clients i could
see that we really do want to keep this as 'internal server error' but for
things like e.g. docker image not authorized we're showing that in the
response, so this seems apt.

json likely needs the same treatment, will file a bug.

as always, my error messages are rarely helpful enough, help me please :)

closes #355

* add formatting directive

* fix up http error

* output bad jasons to user

closes #729

woo
This commit is contained in:
Reed Allman
2018-02-12 17:51:45 -08:00
committed by GitHub
parent 9d3b66d807
commit 97194b3d8b
3 changed files with 13 additions and 10 deletions
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14
api/server/runner_test.go
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@@ -132,6 +132,7 @@ func TestRouteRunnerExecution(t *testing.T) {
[]*models.Route{
{Path: "/", AppName: "myapp", Image: "fnproject/fn-test-utils", Type: "sync", Memory: 128, Timeout: 30, IdleTimeout: 30, Headers: map[string][]string{"X-Function": {"Test"}}},
{Path: "/myhot", AppName: "myapp", Image: "fnproject/fn-test-utils", Type: "sync", Format: "http", Memory: 128, Timeout: 30, IdleTimeout: 30, Headers: map[string][]string{"X-Function": {"Test"}}},
{Path: "/myhotjason", AppName: "myapp", Image: "fnproject/fn-test-utils", Type: "sync", Format: "json", Memory: 128, Timeout: 30, IdleTimeout: 30, Headers: map[string][]string{"X-Function": {"Test"}}},
{Path: "/myroute", AppName: "myapp", Image: "fnproject/fn-test-utils", Type: "sync", Memory: 128, Timeout: 30, IdleTimeout: 30, Headers: map[string][]string{"X-Function": {"Test"}}},
{Path: "/myerror", AppName: "myapp", Image: "fnproject/fn-test-utils", Type: "sync", Memory: 128, Timeout: 30, IdleTimeout: 30, Headers: map[string][]string{"X-Function": {"Test"}}},
{Path: "/mydne", AppName: "myapp", Image: "fnproject/imagethatdoesnotexist", Type: "sync", Memory: 128, Timeout: 30, IdleTimeout: 30},
@@ -152,6 +153,7 @@ func TestRouteRunnerExecution(t *testing.T) {
crasher := `{"sleepTime": 0, "isDebug": true, "isCrash": true}` // crash container
oomer := `{"sleepTime": 0, "isDebug": true, "allocateMemory": 12000000}` // ask for 12MB
badHttp := `{"sleepTime": 0, "isDebug": true, "responseCode": -1}` // http status of -1 (invalid http)
badHot := `{"invalidResponse": true, "isDebug": true}` // write a not json/http as output
ok := `{"sleepTime": 0, "isDebug": true}` // good response / ok
for i, test := range []struct {
@@ -164,21 +166,17 @@ func TestRouteRunnerExecution(t *testing.T) {
}{
{"/r/myapp/", ok, "GET", http.StatusOK, expHeaders, ""},
// TODO: this should return 502 and description about container misbehaving
{"/r/myapp/myhot", badHttp, "GET", http.StatusInternalServerError, expHeaders, "internal server error"},
{"/r/myapp/myhot", badHttp, "GET", http.StatusBadGateway, expHeaders, "invalid http response"},
// hot container now back to normal, we should get OK
{"/r/myapp/myhot", ok, "GET", http.StatusOK, expHeaders, ""},
{"/r/myapp/myhot", badHot, "GET", http.StatusBadGateway, expHeaders, "invalid http response"},
{"/r/myapp/myhotjason", badHot, "GET", http.StatusBadGateway, expHeaders, "invalid json response"},
{"/r/myapp/myroute", ok, "GET", http.StatusOK, expHeaders, ""},
{"/r/myapp/myerror", crasher, "GET", http.StatusBadGateway, expHeaders, "container exit code 2"},
{"/r/myapp/mydne", ``, "GET", http.StatusNotFound, nil, "pull access denied"},
{"/r/myapp/mydnehot", ``, "GET", http.StatusNotFound, nil, "pull access denied"},
// Added same tests again to check if time is reduced by the auth cache
{"/r/myapp/", ok, "GET", http.StatusOK, expHeaders, ""},
{"/r/myapp/myroute", ok, "GET", http.StatusOK, expHeaders, ""},
{"/r/myapp/myerror", crasher, "GET", http.StatusBadGateway, expHeaders, "container exit code 2"},
{"/r/myapp/myerror", crasher, "GET", http.StatusBadGateway, expHeaders, "container exit code 2"},
{"/r/myapp/myoom", oomer, "GET", http.StatusBadGateway, nil, "container out of memory"},
} {
body := strings.NewReader(test.body)