fix(drivers/189): decode JSON strings before parsing timestamps (#3033)

- Decode JSON time strings before normalizing Unicode spaces in both 189 drivers
- Exercise escaped spaces and existing date formats through JSON unmarshalling
- Cover invalid JSON input and XML time parsing

Signed-off-by: jyxjjj <16695261+jyxjjj@users.noreply.github.com>
Co-authored-by: Codex <267193182+codex@users.noreply.github.com>

drivers/189_tv/help.go

@@ -5,6 +5,7 @@ import (
 	"crypto/hmac"
 	"crypto/sha1"
 	"encoding/hex"
+	"encoding/json"
 	"encoding/xml"
 	"fmt"
 	"net/http"
@@ -59,7 +60,13 @@ func timestamp() int64 {
 
 type Time time.Time
 
-func (t *Time) UnmarshalJSON(b []byte) error { return t.Unmarshal(b) }
+func (t *Time) UnmarshalJSON(b []byte) error {
+	var s string
+	if err := json.Unmarshal(b, &s); err != nil {
+		return err
+	}
+	return t.Unmarshal([]byte(s))
+}
 func (t *Time) UnmarshalXML(e *xml.Decoder, ee xml.StartElement) error {
 	b, err := e.Token()
 	if err != nil {

drivers/189_tv/help_test.go

@@ -1,6 +1,8 @@
 package _189_tv
 
 import (
+	"encoding/json"
+	"encoding/xml"
 	"testing"
 	"time"
 )
@@ -17,11 +19,13 @@ func TestTimeUnmarshal(t *testing.T) {
 		{"new format no tz", `"Aug 11, 2026, 10:37:18 PM"`, time.Date(2026, 8, 11, 22, 37, 18, 0, time.FixedZone("", 8*3600))},
 		{"narrow no-break space (U+202F)", "\"Aug 12, 2026, 12:35:41\u202fAM +08\"", time.Date(2026, 8, 12, 0, 35, 41, 0, time.FixedZone("", 8*3600))},
 		{"no-break space (U+00A0)", "\"Aug 12, 2026, 12:35:41\u00a0AM +08\"", time.Date(2026, 8, 12, 0, 35, 41, 0, time.FixedZone("", 8*3600))},
+		{"JSON escaped narrow space", `"Sep 4, 2026, 10:59:33\u202fPM +08"`, time.Date(2026, 9, 4, 22, 59, 33, 0, time.FixedZone("", 8*3600))},
+		{"JSON escaped space without timezone", `"Sep 4, 2026, 12:59:33\u00a0AM"`, time.Date(2026, 9, 4, 0, 59, 33, 0, time.FixedZone("", 8*3600))},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			var tm Time
-			if err := tm.Unmarshal([]byte(tt.input)); err != nil {
+			if err := json.Unmarshal([]byte(tt.input), &tm); err != nil {
 				t.Fatalf("Unmarshal(%s) error: %v", tt.input, err)
 			}
 			if !tt.want.Equal(time.Time(tm)) {
@@ -37,3 +41,25 @@ func TestTimeUnmarshalRejectsInvalid(t *testing.T) {
 		t.Fatal("Unmarshal accepted an invalid time")
 	}
 }
+
+func TestTimeUnmarshalJSONRejectsInvalid(t *testing.T) {
+	for _, input := range []string{`"invalid"`, `123`, `null`, `"Sep 4, 2026, 10:59:33\uZZZZPM +08"`} {
+		t.Run(input, func(t *testing.T) {
+			var tm Time
+			if err := tm.UnmarshalJSON([]byte(input)); err == nil {
+				t.Fatalf("UnmarshalJSON(%s) accepted invalid input", input)
+			}
+		})
+	}
+}
+
+func TestTimeUnmarshalXML(t *testing.T) {
+	var tm Time
+	if err := xml.Unmarshal([]byte(`<time>Sep 4, 2026, 10:59:33&#x202f;PM +08</time>`), &tm); err != nil {
+		t.Fatal(err)
+	}
+	want := time.Date(2026, 9, 4, 22, 59, 33, 0, time.FixedZone("", 8*3600))
+	if !want.Equal(time.Time(tm)) {
+		t.Fatalf("UnmarshalXML = %v, want %v", time.Time(tm), want)
+	}
+}

drivers/189pc/help.go

@@ -9,6 +9,7 @@ import (
 	"crypto/sha1"
 	"crypto/x509"
 	"encoding/hex"
+	"encoding/json"
 	"encoding/pem"
 	"encoding/xml"
 	"fmt"
@@ -102,7 +103,13 @@ func MustParseTime(str string) *time.Time {
 
 type Time time.Time
 
-func (t *Time) UnmarshalJSON(b []byte) error { return t.Unmarshal(b) }
+func (t *Time) UnmarshalJSON(b []byte) error {
+	var s string
+	if err := json.Unmarshal(b, &s); err != nil {
+		return err
+	}
+	return t.Unmarshal([]byte(s))
+}
 func (t *Time) UnmarshalXML(e *xml.Decoder, ee xml.StartElement) error {
 	b, err := e.Token()
 	if err != nil {

drivers/189pc/help_test.go

@@ -1,6 +1,8 @@
 package _189pc
 
 import (
+	"encoding/json"
+	"encoding/xml"
 	"testing"
 	"time"
 )
@@ -17,11 +19,13 @@ func TestTimeUnmarshal(t *testing.T) {
 		{"new format no tz", `"Aug 11, 2026, 10:37:18 PM"`, time.Date(2026, 8, 11, 22, 37, 18, 0, time.FixedZone("", 8*3600))},
 		{"narrow no-break space (U+202F)", "\"Aug 12, 2026, 12:35:41\u202fAM +08\"", time.Date(2026, 8, 12, 0, 35, 41, 0, time.FixedZone("", 8*3600))},
 		{"no-break space (U+00A0)", "\"Aug 12, 2026, 12:35:41\u00a0AM +08\"", time.Date(2026, 8, 12, 0, 35, 41, 0, time.FixedZone("", 8*3600))},
+		{"JSON escaped narrow space", `"Sep 4, 2026, 10:59:33\u202fPM +08"`, time.Date(2026, 9, 4, 22, 59, 33, 0, time.FixedZone("", 8*3600))},
+		{"JSON escaped space without timezone", `"Sep 4, 2026, 12:59:33\u00a0AM"`, time.Date(2026, 9, 4, 0, 59, 33, 0, time.FixedZone("", 8*3600))},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			var tm Time
-			if err := tm.Unmarshal([]byte(tt.input)); err != nil {
+			if err := json.Unmarshal([]byte(tt.input), &tm); err != nil {
 				t.Fatalf("Unmarshal(%s) error: %v", tt.input, err)
 			}
 			if !tt.want.Equal(time.Time(tm)) {
@@ -37,3 +41,25 @@ func TestTimeUnmarshalRejectsInvalid(t *testing.T) {
 		t.Fatal("Unmarshal accepted an invalid time")
 	}
 }
+
+func TestTimeUnmarshalJSONRejectsInvalid(t *testing.T) {
+	for _, input := range []string{`"invalid"`, `123`, `null`, `"Sep 4, 2026, 10:59:33\uZZZZPM +08"`} {
+		t.Run(input, func(t *testing.T) {
+			var tm Time
+			if err := tm.UnmarshalJSON([]byte(input)); err == nil {
+				t.Fatalf("UnmarshalJSON(%s) accepted invalid input", input)
+			}
+		})
+	}
+}
+
+func TestTimeUnmarshalXML(t *testing.T) {
+	var tm Time
+	if err := xml.Unmarshal([]byte(`<time>Sep 4, 2026, 10:59:33&#x202f;PM +08</time>`), &tm); err != nil {
+		t.Fatal(err)
+	}
+	want := time.Date(2026, 9, 4, 22, 59, 33, 0, time.FixedZone("", 8*3600))
+	if !want.Equal(time.Time(tm)) {
+		t.Fatalf("UnmarshalXML = %v, want %v", time.Time(tm), want)
+	}
+}