ci: Make release also push latest tag

* fix: Prevent jsonpath from causing panic when body is expected to be array but isn't

Fixes #391

.github/workflows/publish-release-to-ghcr.yml

@@ -31,4 +31,7 @@ jobs:
           platforms: linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64
           pull: true
           push: true
-          tags: ${{ env.IMAGE_REPOSITORY }}:${{ env.RELEASE }},${{ env.IMAGE_REPOSITORY }}:stable
+          tags: |
+            ${{ env.IMAGE_REPOSITORY }}:${{ env.RELEASE }}
+            ${{ env.IMAGE_REPOSITORY }}:stable
+            ${{ env.IMAGE_REPOSITORY }}:latest

.github/workflows/publish-release.yml

@@ -28,4 +28,7 @@ jobs:
           platforms: linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64
           pull: true
           push: true
-          tags: ${{ env.IMAGE_REPOSITORY }}:${{ env.RELEASE }},${{ env.IMAGE_REPOSITORY }}:stable
+          tags: |
+            ${{ env.IMAGE_REPOSITORY }}:${{ env.RELEASE }}
+            ${{ env.IMAGE_REPOSITORY }}:stable
+            ${{ env.IMAGE_REPOSITORY }}:latest

README.md

@@ -143,11 +143,13 @@ endpoints:
       - "[STATUS] == 200"         # Status must be 200
       - "[BODY].status == UP"     # The json path "$.status" must be equal to UP
       - "[RESPONSE_TIME] < 300"   # Response time must be under 300ms
-  - name: example
+
+  - name: make-sure-header-is-rendered
     url: "https://example.org/"
     interval: 60s
     conditions:
-      - "[STATUS] == 200"
+      - "[STATUS] == 200"                          # Status must be 200
+      - "[BODY] == pat(*<h1>Example Domain</h1>*)" # Body must contain the specified header
 ```
 
 This example would look similar to this:
@@ -250,12 +252,12 @@ Here are some examples of conditions you can use:
 
 
 #### Functions
-| Function | Description                                                                                                    | Example                            |
-|:---------|:---------------------------------------------------------------------------------------------------------------|:-----------------------------------|
-| `len`    | Returns the length of the object/slice. Works only with the `[BODY]` placeholder.                              | `len([BODY].username) > 8`         |
-| `has`    | Returns `true` or `false` based on whether a given path is valid. Works only with the `[BODY]` placeholder.    | `has([BODY].errors) == false`      |
-| `pat`    | Specifies that the string passed as parameter should be evaluated as a pattern. Works only with `==` and `!=`. | `[IP] == pat(192.168.*)`           |
-| `any`    | Specifies that any one of the values passed as parameters is a valid value. Works only with `==` and `!=`.     | `[BODY].ip == any(127.0.0.1, ::1)` |
+| Function | Description                                                                                                                                                                                                                         | Example                            |
+|:---------|:------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:-----------------------------------|
+| `len`    | If the given path leads to an array, returns its length. Otherwise, the JSON at the given path is minified and converted to a string, and the resulting number of characters is returned. Works only with the `[BODY]` placeholder. | `len([BODY].username) > 8`         |
+| `has`    | Returns `true` or `false` based on whether a given path is valid. Works only with the `[BODY]` placeholder.                                                                                                                         | `has([BODY].errors) == false`      |
+| `pat`    | Specifies that the string passed as parameter should be evaluated as a pattern. Works only with `==` and `!=`.                                                                                                                      | `[IP] == pat(192.168.*)`           |
+| `any`    | Specifies that any one of the values passed as parameters is a valid value. Works only with `==` and `!=`.                                                                                                                          | `[BODY].ip == any(127.0.0.1, ::1)` |
 
 **NOTE**: Use `pat` only when you need to. `[STATUS] == pat(2*)` is a lot more expensive than `[STATUS] < 300`.
 

core/condition_test.go

@@ -231,6 +231,13 @@ func TestCondition_evaluate(t *testing.T) {
 			ExpectedSuccess: true,
 			ExpectedOutput:  "[BODY][0].id == 1",
 		},
+		{
+			Name:            "body-jsonpath-when-body-is-array-but-actual-body-is-not",
+			Condition:       Condition("[BODY][0].name == test"),
+			Result:          &Result{body: []byte("{\"statusCode\": 500, \"message\": \"Internal Server Error\"}")},
+			ExpectedSuccess: false,
+			ExpectedOutput:  "[BODY][0].name (INVALID) == test",
+		},
 		{
 			Name:            "body-jsonpath-complex-int",
 			Condition:       Condition("[BODY].data.id == 1"),

jsonpath/jsonpath.go

@@ -93,7 +93,7 @@ func extractValue(currentKey string, value interface{}) interface{} {
 		currentKeyWithoutIndex := currentKey[:startOfBracket]
 		// if currentKeyWithoutIndex contains only an index (i.e. [0] or 0)
 		if len(currentKeyWithoutIndex) == 0 {
-			array := value.([]interface{})
+			array, _ := value.([]interface{})
 			if len(array) > arrayIndex {
 				if isNestedArray {
 					return extractValue(currentKey[endOfBracket+1:], array[arrayIndex])
@@ -106,7 +106,7 @@ func extractValue(currentKey string, value interface{}) interface{} {
 			return nil
 		}
 		// if currentKeyWithoutIndex contains both a key and an index (i.e. data[0])
-		array := value.(map[string]interface{})[currentKeyWithoutIndex].([]interface{})
+		array, _ := value.(map[string]interface{})[currentKeyWithoutIndex].([]interface{})
 		if len(array) > arrayIndex {
 			if isNestedArray {
 				return extractValue(currentKey[endOfBracket+1:], array[arrayIndex])