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new.go
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new.go
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// SPDX-License-Identifier: AGPL-3.0-only
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, version 3.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>
package ua
import (
"strings"
"github.com/gofiber/fiber/v2"
"github.com/bangumi/server/internal/web/res"
)
var _ fiber.Handler = DisableDefaultHTTPLibrary
const forbiddenMessage = "using HTTP request library's default User-Agent is forbidden, " +
"please read the document for User-Agent suggestion " +
"https://github.com/bangumi/api/blob/master/docs-raw/user%20agent.md"
func DisableDefaultHTTPLibrary(c *fiber.Ctx) error {
u := c.Get(fiber.HeaderUserAgent)
if u == "" {
return res.Forbidden("Please set a 'User-Agent'")
}
if isDefaultUA(u) {
return res.Forbidden(forbiddenMessage)
}
return c.Next()
}
func isDefaultUA(u string) bool {
return strings.HasPrefix(u, "Java/") ||
strings.HasPrefix(u, "axios/") ||
strings.HasPrefix(u, "okhttp/") ||
strings.HasPrefix(u, "go-resty/") ||
strings.HasPrefix(u, "Faraday v") ||
strings.HasPrefix(u, "node-fetch/") ||
strings.HasPrefix(u, "Go-http-client/") ||
strings.HasPrefix(u, "python-requests/") ||
strings.HasPrefix(u, "Apache-HttpClient/") ||
u == "node-fetch" ||
u == "database"
}