Disallow to set arbitrary environments for plugins

pipeline/frontend/yaml/linter/linter.go

@@ -133,15 +133,14 @@
 }
 
 func (l *Linter) lintCommands(config *WorkflowConfig, c *types.Container, field string) error {
-	if len(c.Commands) == 0 {
+	if len(c.Commands) == 0 && len(c.Environment) == 0 {
 		return nil
 	}
-	if len(c.Settings) != 0 {
-		var keys []string
-		for key := range c.Settings {
-			keys = append(keys, key)
-		}
-		return newLinterError(fmt.Sprintf("Cannot configure both commands and custom attributes %v", keys), config.File, fmt.Sprintf("%s.%s", field, c.Name), false)
+	if len(c.Settings) != 0 && len(c.Commands) != 0 {
+		return newLinterError("Cannot configure both commands and settings", config.File, fmt.Sprintf("%s.%s", field, c.Name), false)
+	}
+	if len(c.Settings) != 0 && len(c.Environment) != 0 {
+		return newLinterError("Cannot configure both commands and settings", config.File, fmt.Sprintf("%s.%s", field, c.Name), false)
 	}
 	return nil
 }

pipeline/frontend/yaml/linter/schema/.woodpecker/test-broken-plugin.yaml

@@ -0,0 +1,8 @@
+steps:
+  publish:
+    image: plugins/docker
+    settings:
+      repo: foo/bar
+      tags: latest
+    environment:
+      CGO: 0

pipeline/frontend/yaml/linter/schema/.woodpecker/test-broken-plugin2.yaml

@@ -0,0 +1,8 @@
+steps:
+  publish:
+    image: plugins/docker
+    settings:
+      repo: foo/bar
+      tags: latest
+    commands:
+      - env

pipeline/frontend/yaml/linter/schema/.woodpecker/test-step.yaml

@@ -18,7 +18,7 @@ steps:
     image: alpine
     entrypoint: ['some_entry', '--some-flag']
 
-  singla-entrypoint:
+  single-entrypoint:
     image: alpine
     entrypoint: some_entry
 

pipeline/frontend/yaml/linter/schema/schema.json

@@ -304,10 +304,24 @@
       }
     },
     "step": {
+      "description": "An step of your workflow executes either arbitrary commands or uses an plugin. Read more: https://woodpecker-ci.org/docs/usage/workflow-syntax#steps",
+      "oneOf": [
+        {
+          "$ref": "#/definitions/commands_step"
+        },
+        {
+          "$ref": "#/definitions/entrypoint_step"
+        },
+        {
+          "$ref": "#/definitions/plugin_step"
+        }
+      ]
+    },
+    "commands_step": {
       "description": "Every step of your pipeline executes arbitrary commands inside a specified docker container. Read more: https://woodpecker-ci.org/docs/usage/workflow-syntax#steps",
       "type": "object",
       "additionalProperties": false,
-      "required": ["image"],
+      "required": ["image", "commands"],
       "properties": {
         "name": {
           "description": "The name of the step. Can be used if using the array style steps list.",
@@ -334,8 +348,91 @@
         "secrets": {
           "$ref": "#/definitions/step_secrets"
         },
-        "settings": {
-          "$ref": "#/definitions/step_settings"
+        "when": {
+          "$ref": "#/definitions/step_when"
+        },
+        "volumes": {
+          "$ref": "#/definitions/step_volumes"
+        },
+        "group": {
+          "description": "deprecated, use depends_on",
+          "type": "string"
+        },
+        "depends_on": {
+          "description": "Execute a step after another step has finished.",
+          "oneOf": [
+            {
+              "type": "array",
+              "minLength": 1,
+              "items": {
+                "type": "string"
+              }
+            },
+            {
+              "type": "string"
+            }
+          ]
+        },
+        "detach": {
+          "description": "Detach a step to run in background until pipeline finishes. Read more: https://woodpecker-ci.org/docs/usage/services#detachment",
+          "type": "boolean"
+        },
+        "failure": {
+          "description": "How to handle the failure of this step. Read more: https://woodpecker-ci.org/docs/usage/workflow-syntax#failure",
+          "type": "string",
+          "enum": ["fail", "ignore"],
+          "default": "fail"
+        },
+        "backend_options": {
+          "$ref": "#/definitions/step_backend_options"
+        },
+        "entrypoint": {
+          "description": "Defines container entrypoint.",
+          "oneOf": [
+            {
+              "type": "array",
+              "minLength": 1,
+              "items": {
+                "type": "string"
+              }
+            },
+            {
+              "type": "string"
+            }
+          ]
+        }
+      }
+    },
+    "entrypoint_step": {
+      "description": "Every step of your pipeline executes arbitrary commands inside a specified docker container. Read more: https://woodpecker-ci.org/docs/usage/workflow-syntax#steps",
+      "type": "object",
+      "additionalProperties": false,
+      "required": ["image", "entrypoint"],
+      "properties": {
+        "name": {
+          "description": "The name of the step. Can be used if using the array style steps list.",
+          "type": "string"
+        },
+        "image": {
+          "$ref": "#/definitions/step_image"
+        },
+        "privileged": {
+          "$ref": "#/definitions/step_privileged"
+        },
+        "pull": {
+          "$ref": "#/definitions/step_pull"
+        },
+        "commands": {
+          "$ref": "#/definitions/step_commands"
+        },
+        "environment": {
+          "$ref": "#/definitions/step_environment"
+        },
+        "directory": {
+          "$ref": "#/definitions/step_directory"
+        },
+        "secrets": {
+          "$ref": "#/definitions/step_secrets"
         },
         "when": {
           "$ref": "#/definitions/step_when"
@@ -392,6 +489,74 @@
         }
       }
     },
+    "plugin_step": {
+      "description": "Plugins let you execute predefined functions in a more secure context. Read more: https://woodpecker-ci.org/docs/usage/plugins/overview",
+      "type": "object",
+      "additionalProperties": false,
+      "required": ["image"],
+      "properties": {
+        "name": {
+          "description": "The name of the step. Can be used if using the array style steps list.",
+          "type": "string"
+        },
+        "image": {
+          "$ref": "#/definitions/step_image"
+        },
+        "privileged": {
+          "$ref": "#/definitions/step_privileged"
+        },
+        "pull": {
+          "$ref": "#/definitions/step_pull"
+        },
+        "directory": {
+          "$ref": "#/definitions/step_directory"
+        },
+        "secrets": {
+          "$ref": "#/definitions/step_secrets"
+        },
+        "settings": {
+          "$ref": "#/definitions/step_settings"
+        },
+        "when": {
+          "$ref": "#/definitions/step_when"
+        },
+        "volumes": {
+          "$ref": "#/definitions/step_volumes"
+        },
+        "group": {
+          "description": "deprecated, use depends_on",
+          "type": "string"
+        },
+        "depends_on": {
+          "description": "Execute a step after another step has finished.",
+          "oneOf": [
+            {
+              "type": "array",
+              "minLength": 1,
+              "items": {
+                "type": "string"
+              }
+            },
+            {
+              "type": "string"
+            }
+          ]
+        },
+        "detach": {
+          "description": "Detach a step to run in background until pipeline finishes. Read more: https://woodpecker-ci.org/docs/usage/services#detachment",
+          "type": "boolean"
+        },
+        "failure": {
+          "description": "How to handle the failure of this step. Read more: https://woodpecker-ci.org/docs/usage/workflow-syntax#failure",
+          "type": "string",
+          "enum": ["fail", "ignore"],
+          "default": "fail"
+        },
+        "backend_options": {
+          "$ref": "#/definitions/step_backend_options"
+        }
+      }
+    },
     "step_when": {
       "description": "Steps can be skipped based on conditions. Read more: https://woodpecker-ci.org/docs/usage/workflow-syntax#when---conditional-execution",
       "oneOf": [

pipeline/frontend/yaml/linter/schema/schema_test.go

@@ -116,6 +116,16 @@ func TestSchema(t *testing.T) {
 			testFile: ".woodpecker/test-custom-backend.yaml",
 			fail:     false,
 		},
+		{
+			name:     "Broken Plugin by environment",
+			testFile: ".woodpecker/test-broken-plugin.yaml",
+			fail:     true,
+		},
+		{
+			name:     "Broken Plugin by commands",
+			testFile: ".woodpecker/test-broken-plugin2.yaml",
+			fail:     true,
+		},
 	}
 
 	for _, tt := range testTable {

pipeline/frontend/yaml/types/container.go

@@ -123,7 +123,9 @@ func (c *ContainerList) UnmarshalYAML(value *yaml.Node) error {
 }
 
 func (c *Container) IsPlugin() bool {
-	return len(c.Commands) == 0 && len(c.Entrypoint) == 0
+	return len(c.Commands) == 0 &&
+		len(c.Entrypoint) == 0 &&
+		len(c.Environment) == 0
 }
 
 func (c *Container) IsTrustedCloneImage() bool {

pipeline/log/utils_test.go

@@ -131,6 +131,8 @@ func TestCopyLineByLineSizeLimit(t *testing.T) {
 	if _, err := w.Write([]byte("67\n89")); err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
+	// wait for writer to write
+	time.Sleep(time.Millisecond)
 
 	writes = testWriter.GetWrites()
 	assert.Lenf(t, testWriter.GetWrites(), 2, "expected 2 writes, got: %v", writes)