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libnetwork/config: remove IsValidName utility

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This utility was not used for "Config", but for Networks and Endpoints.
Having this utility made it look like more than it was, and the related
test was effectively testing stdlib.

Abstracting the validation also was hiding that, while validation does
not allow "empty" names, it happily allows leading/trailing whitespace,
and does not remove that before creating networks or endpoints;

    docker network create "bridge "
    docker network create "bridge  "
    docker network create "bridge   "
    docker network create " bridge  "
    docker network create "  bridge "
    docker network create "   bridge"

    docker network ls --filter driver=bridge
    NETWORK ID     NAME        DRIVER    SCOPE
    d4d53210f185      bridge   bridge    local
    e9afba0d99de     bridge    bridge    local
    69fb7a7ba67c    bridge     bridge    local
    a452bf065403   bridge      bridge    local
    49d96c59061d   bridge      bridge    local
    8eae1c4be12c   bridge      bridge    local
    86dd65b881b9   bridge      bridge    local

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn
2023-07-16 18:52:41 +02:00
parent 37b908aa62
commit e21ff6c0c9
4 changed files with 2 additions and 20 deletions
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5
libnetwork/config/config.go
View File

@@ -135,11 +135,6 @@ func OptionNetworkControlPlaneMTU(exp int) Option {
}
}
// IsValidName validates configuration objects supported by libnetwork
func IsValidName(name string) bool {
return strings.TrimSpace(name) != ""
}
// OptionActiveSandboxes function returns an option setter for passing the sandboxes
// which were active during previous daemon life
func OptionActiveSandboxes(sandboxes map[string]interface{}) Option {

12
libnetwork/config/config_test.go
View File

@@ -26,15 +26,3 @@ func TestOptionsLabels(t *testing.T) {
}
}
}
func TestValidName(t *testing.T) {
if !IsValidName("test") {
t.Fatal("Name validation fails for a name that must be accepted")
}
if IsValidName("") {
t.Fatal("Name validation succeeds for a case when it is expected to fail")
}
if IsValidName(" ") {
t.Fatal("Name validation succeeds for a case when it is expected to fail")
}
}

2
libnetwork/controller.go
View File

@@ -480,7 +480,7 @@ func (c *Controller) NewNetwork(networkType, name string, id string, options ...
}
}
if !config.IsValidName(name) {
if strings.TrimSpace(name) == "" {
return nil, ErrInvalidName(name)
}

3
libnetwork/network.go
View File

@@ -11,7 +11,6 @@ import (
"time"
"github.com/containerd/containerd/log"
"github.com/docker/docker/libnetwork/config"
"github.com/docker/docker/libnetwork/datastore"
"github.com/docker/docker/libnetwork/driverapi"
"github.com/docker/docker/libnetwork/etchosts"
@@ -1150,7 +1149,7 @@ func (n *network) addEndpoint(ep *Endpoint) error {
func (n *network) CreateEndpoint(name string, options ...EndpointOption) (*Endpoint, error) {
var err error
if !config.IsValidName(name) {
if strings.TrimSpace(name) == "" {
return nil, ErrInvalidName(name)
}