fix: hosting.de API returns different content

When sending data for a long TXT record (like a DKIM record) to the
hosting.de API, the record contents get changed. This caused the
terraform state to always be incorrect.

Example:

When sending the following record contents for a TXT record to be
created or updated:

```
v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyla9hW3TvoXvZQxwzaJ4SZ9ict1HU3E6+FwLWniGe6TiPtcYrjTIsiudQb8tltibOXiS+qqbxzI+quI3aGU6osy2rIv0eWo8+oOOqOD9pERftc/aqe51cXuv4kPqwvpXEBwrXFWVM+VxivEubUJ7eKkFyXJpelv0LslXv/MmYbUyed6dF+reOGZCsvnbiRv74qdxbAL/25j62E8WrnxzJwhUtx/JhdBOjsHBvuw9hy6rZsVJL9eXayWyGRV6qmsLRzsRSBs+mDrgmKk4dugADd11+A03ics3i8hplRoWDkqnNKz1qy4f5TsV6v9283IANrAzRfHwX8EvNiFsBz+ZCQIDAQAB
```

The API afterwards returned this strings as the contents:

```
\"v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyla9hW3TvoXvZQxwzaJ4SZ9ict1HU3E6+FwLWniGe6TiPtcYrjTIsiudQb8tltibOXiS+qqbxzI+quI3aGU6osy2rIv0eWo8+oOOqOD9pERftc/aqe51cXuv4kPqwvpXEBwrXFWVM+VxivEubUJ7eKkFyXJpelv0LslXv/MmYbUyed6dF+reOGZCsvnbiRv74qd\" \"xbAL/25j62E8WrnxzJwhUtx/JhdBOjsHBvuw9hy6rZsVJL9eXayWyGRV6qmsLRzsRSBs+mDrgmKk4dugADd11+A03ics3i8hplRoWDkqnNKz1qy4f5TsV6v9283IANrAzRfHwX8EvNiFsBz+ZCQIDAQAB\"
```

Notice the added `/"` and `/" /"` parts. This commit removes this extra
string from the terraform resource so terraform thinks they're exactly
the same. It's a relatively crude fix, but it appears to work.

hostingde/record_resource.go

@@ -2,6 +2,7 @@ package hostingde
 
 import (
 	"context"
+	"strings"
 
 	"github.com/hashicorp/terraform-plugin-framework-validators/int64validator"
 	"github.com/hashicorp/terraform-plugin-framework/path"
@@ -21,6 +22,11 @@ var (
 	_ resource.ResourceWithImportState = &recordResource{}
 )
 
+func normalizeRecordContent(content string) string {
+	newContent := strings.ReplaceAll(content, "\" \"", "");
+	return strings.ReplaceAll(newContent, "\"", "");
+}
+
 // NewRecordResource is a helper function to simplify the provider implementation.
 func NewRecordResource() resource.Resource {
 	return &recordResource{}
@@ -130,9 +136,19 @@ func (r *recordResource) Create(ctx context.Context, req resource.CreateRequest,
 	}
 
 	var returnedRecord DNSRecord
-	for _, r := range recordResp.Response.Records {
-		if r.Name == record.Name && r.Type == record.Type && r.Content == record.Content && r.TTL == record.TTL {
-			returnedRecord = r
+	for _, responseRecord := range recordResp.Response.Records {
+		if responseRecord.Name == record.Name && responseRecord.Type == record.Type && responseRecord.TTL == record.TTL {
+			if responseRecord.Content == record.Content {
+				returnedRecord = responseRecord
+				break;
+			} 
+
+			normalizedContent := normalizeRecordContent(responseRecord.Content);
+			if normalizedContent == record.Content {
+				returnedRecord = responseRecord
+				returnedRecord.Content = normalizedContent
+				break;
+			} 
 		}
 	}
 
@@ -189,7 +205,7 @@ func (r *recordResource) Read(ctx context.Context, req resource.ReadRequest, res
 	state.ID = types.StringValue(returnedRecord.ID)
 	state.Name = types.StringValue(returnedRecord.Name)
 	state.Type = types.StringValue(returnedRecord.Type)
-	state.Content = types.StringValue(returnedRecord.Content)
+	state.Content = types.StringValue(normalizeRecordContent(returnedRecord.Content))
 	state.TTL = types.Int64Value(int64(returnedRecord.TTL))
 	state.Priority = types.Int64Value(int64(returnedRecord.Priority))
 
@@ -238,9 +254,19 @@ func (r *recordResource) Update(ctx context.Context, req resource.UpdateRequest,
 	}
 
 	var returnedRecord DNSRecord
-	for _, r := range recordResp.Response.Records {
-		if r.Name == record.Name && r.Type == record.Type && r.Content == record.Content && r.TTL == record.TTL {
-			returnedRecord = r
+	for _, responseRecord := range recordResp.Response.Records {
+		if responseRecord.Name == record.Name && responseRecord.Type == record.Type && responseRecord.TTL == record.TTL {
+			if responseRecord.Content == record.Content {
+				returnedRecord = responseRecord
+				break;
+			} 
+
+			normalizedContent := normalizeRecordContent(responseRecord.Content);
+			if normalizedContent == record.Content {
+				returnedRecord = responseRecord
+				returnedRecord.Content = normalizedContent
+				break;
+			} 
 		}
 	}
 

hostingde/record_resource_test.go

@@ -66,6 +66,33 @@ resource "hostingde_record" "test_mx" {
 					resource.TestCheckResourceAttrSet("hostingde_record.test_mx", "id"),
 				),
 			},
+			// Create and read TXT testing
+			{
+				Config: providerConfig + `
+resource "hostingde_zone" "test" {
+  name = "example2.test"
+  type = "NATIVE"
+  email = "[email protected]"
+}
+resource "hostingde_record" "test_dkim" {
+  zone_id = hostingde_zone.test.id
+  name = "default._domainkey.example2.test"
+  type = "TXT"
+  content = "v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyla9hW3TvoXvZQxwzaJ4SZ9ict1HU3E6+FwLWniGe6TiPtcYrjTIsiudQb8tltibOXiS+qqbxzI+quI3aGU6osy2rIv0eWo8+oOOqOD9pERftc/aqe51cXuv4kPqwvpXEBwrXFWVM+VxivEubUJ7eKkFyXJpelv0LslXv/MmYbUyed6dF+reOGZCsvnbiRv74qdxbAL/25j62E8WrnxzJwhUtx/JhdBOjsHBvuw9hy6rZsVJL9eXayWyGRV6qmsLRzsRSBs+mDrgmKk4dugADd11+A03ics3i8hplRoWDkqnNKz1qy4f5TsV6v9283IANrAzRfHwX8EvNiFsBz+ZCQIDAQAB"
+  ttl = 300
+}
+`,
+				Check: resource.ComposeAggregateTestCheckFunc(
+					// Verify name attribute.
+					resource.TestCheckResourceAttr("hostingde_record.test_dkim", "name", "default._domainkey.example2.test"),
+					// Verify type attribute.
+					resource.TestCheckResourceAttr("hostingde_record.test_dkim", "type", "TXT"),
+					// Verify email attribute.
+					resource.TestCheckResourceAttr("hostingde_record.test_dkim", "content", "v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyla9hW3TvoXvZQxwzaJ4SZ9ict1HU3E6+FwLWniGe6TiPtcYrjTIsiudQb8tltibOXiS+qqbxzI+quI3aGU6osy2rIv0eWo8+oOOqOD9pERftc/aqe51cXuv4kPqwvpXEBwrXFWVM+VxivEubUJ7eKkFyXJpelv0LslXv/MmYbUyed6dF+reOGZCsvnbiRv74qdxbAL/25j62E8WrnxzJwhUtx/JhdBOjsHBvuw9hy6rZsVJL9eXayWyGRV6qmsLRzsRSBs+mDrgmKk4dugADd11+A03ics3i8hplRoWDkqnNKz1qy4f5TsV6v9283IANrAzRfHwX8EvNiFsBz+ZCQIDAQAB"),
+					// Verify dynamic values have any value set in the state.
+					resource.TestCheckResourceAttrSet("hostingde_record.test_dkim", "id"),
+				),
+			},
 			// ImportState testing
 			{
 				ResourceName:      "hostingde_zone.test",