status.rs: Make json output more verbose (#1367)

* status.rs: Make json output more verbose

Currently if the status response has no status code, json output
contains only a text field which gives no real information about
the cause of the problem. The patch adds field with more detailed
information when the status response contains some details.

Signed-off-by: Norbert Kamiński <norbert.kaminski@3mdeb.com>

* cli.rs: Test parsing of error details in JSON format

Some network error such as SSL has no status code but it can be
identified by error status details. This patch adds a test case to
verify if the error details are parsed properly in the json format.

Signed-off-by: Norbert Kamiński <norbert.kaminski@3mdeb.com>

---------

Signed-off-by: Norbert Kamiński <norbert.kaminski@3mdeb.com>

fixtures/TEST_DETAILED_JSON_OUTPUT_ERROR.md

@@ -0,0 +1,8 @@
+# Test detailed JSON output error
+
+This file is used to test if the error details are parsed properly in the json
+format.
+
+[The website](https://expired.badssl.com/) produce SSL expired certificate
+error. Such network error has no status code but it can be identified by error
+status details.

lychee-bin/tests/cli.rs

@@ -133,6 +133,36 @@ mod cli {
         Ok(())
     }
 
+    #[test]
+    fn test_detailed_json_output_on_error() -> Result<()> {
+        let test_path = fixtures_path().join("TEST_DETAILED_JSON_OUTPUT_ERROR.md");
+
+        let mut cmd = main_command();
+        cmd.arg("--format")
+            .arg("json")
+            .arg(&test_path)
+            .assert()
+            .failure()
+            .code(2);
+
+        let output = cmd.output()?;
+
+        // Check that the output is valid JSON
+        assert!(serde_json::from_slice::<Value>(&output.stdout).is_ok());
+
+        // Parse site error status from the fail_map
+        let output_json = serde_json::from_slice::<Value>(&output.stdout).unwrap();
+        let site_error_status = &output_json["fail_map"][&test_path.to_str().unwrap()][0]["status"];
+
+        assert_eq!(
+            "error:0A000086:SSL routines:tls_post_process_server_certificate:\
+            certificate verify failed:../ssl/statem/statem_clnt.c:1883: \
+            (certificate has expired)",
+            site_error_status["details"]
+        );
+        Ok(())
+    }
+
     #[test]
     fn test_exclude_all_private() -> Result<()> {
         test_json_output!(

lychee-lib/src/types/status.rs

@@ -68,6 +68,10 @@ impl Serialize for Status {
             s = serializer.serialize_struct("Status", 2)?;
             s.serialize_field("text", &self.to_string())?;
             s.serialize_field("code", &code.as_u16())?;
+        } else if let Some(details) = self.details() {
+            s = serializer.serialize_struct("Status", 2)?;
+            s.serialize_field("text", &self.to_string())?;
+            s.serialize_field("details", &details.to_string())?;
         } else {
             s = serializer.serialize_struct("Status", 1)?;
             s.serialize_field("text", &self.to_string())?;