api: Add go files

I know this is a huge commit, but I can't be bothered to check
this in part by part.

api/domain_list.go

@@ -0,0 +1,67 @@
+package main
+
+import (
+	"net/http"
+)
+
+func domainList(ownerHex string) ([]domain, error) {
+	if ownerHex == "" {
+		return []domain{}, errorMissingField
+	}
+
+	statement := `
+    SELECT domain, ownerHex, name, creationDate, state, importedComments, autoSpamFilter, requireModeration, requireIdentification
+		FROM domains
+		WHERE ownerHex=$1;
+	`
+	rows, err := db.Query(statement, ownerHex)
+	if err != nil {
+		logger.Errorf("cannot query domains: %v", err)
+		return nil, errorInternal
+	}
+	defer rows.Close()
+
+	domains := []domain{}
+	for rows.Next() {
+		d := domain{}
+		if err = rows.Scan(&d.Domain, &d.OwnerHex, &d.Name, &d.CreationDate, &d.State, &d.ImportedComments, &d.AutoSpamFilter, &d.RequireModeration, &d.RequireIdentification); err != nil {
+			logger.Errorf("cannot Scan domain: %v", err)
+			return nil, errorInternal
+		}
+
+		d.Moderators, err = domainModeratorList(d.Domain)
+		if err != nil {
+			return []domain{}, err
+		}
+
+		domains = append(domains, d)
+	}
+
+	return domains, rows.Err()
+}
+
+func domainListHandler(w http.ResponseWriter, r *http.Request) {
+	type request struct {
+		Session *string `json:"session"`
+	}
+
+	var x request
+	if err := unmarshalBody(r, &x); err != nil {
+		writeBody(w, response{"success": false, "message": err.Error()})
+		return
+	}
+
+	o, err := ownerGetBySession(*x.Session)
+	if err != nil {
+		writeBody(w, response{"success": false, "message": err.Error()})
+		return
+	}
+
+	domains, err := domainList(o.OwnerHex)
+	if err != nil {
+		writeBody(w, response{"success": false, "message": err.Error()})
+		return
+	}
+
+	writeBody(w, response{"success": true, "domains": domains})
+}