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2f33fe86f5
* Update dependencies and build to go1.22 * Fix api changes wrt to dependencies * Update golangci config
92 lines
2.6 KiB
Go
92 lines
2.6 KiB
Go
// SPDX-License-Identifier: MIT
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// SPDX-FileCopyrightText: © 2015 LabStack LLC and Echo contributors
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package middleware
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import (
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"net/http"
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"github.com/labstack/echo/v4"
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)
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// MethodOverrideConfig defines the config for MethodOverride middleware.
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type MethodOverrideConfig struct {
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// Skipper defines a function to skip middleware.
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Skipper Skipper
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// Getter is a function that gets overridden method from the request.
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// Optional. Default values MethodFromHeader(echo.HeaderXHTTPMethodOverride).
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Getter MethodOverrideGetter
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}
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// MethodOverrideGetter is a function that gets overridden method from the request
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type MethodOverrideGetter func(echo.Context) string
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// DefaultMethodOverrideConfig is the default MethodOverride middleware config.
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var DefaultMethodOverrideConfig = MethodOverrideConfig{
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Skipper: DefaultSkipper,
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Getter: MethodFromHeader(echo.HeaderXHTTPMethodOverride),
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}
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// MethodOverride returns a MethodOverride middleware.
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// MethodOverride middleware checks for the overridden method from the request and
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// uses it instead of the original method.
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//
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// For security reasons, only `POST` method can be overridden.
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func MethodOverride() echo.MiddlewareFunc {
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return MethodOverrideWithConfig(DefaultMethodOverrideConfig)
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}
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// MethodOverrideWithConfig returns a MethodOverride middleware with config.
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// See: `MethodOverride()`.
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func MethodOverrideWithConfig(config MethodOverrideConfig) echo.MiddlewareFunc {
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// Defaults
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if config.Skipper == nil {
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config.Skipper = DefaultMethodOverrideConfig.Skipper
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}
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if config.Getter == nil {
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config.Getter = DefaultMethodOverrideConfig.Getter
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}
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return func(next echo.HandlerFunc) echo.HandlerFunc {
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return func(c echo.Context) error {
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if config.Skipper(c) {
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return next(c)
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}
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req := c.Request()
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if req.Method == http.MethodPost {
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m := config.Getter(c)
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if m != "" {
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req.Method = m
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}
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}
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return next(c)
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}
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}
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}
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// MethodFromHeader is a `MethodOverrideGetter` that gets overridden method from
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// the request header.
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func MethodFromHeader(header string) MethodOverrideGetter {
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return func(c echo.Context) string {
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return c.Request().Header.Get(header)
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}
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}
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// MethodFromForm is a `MethodOverrideGetter` that gets overridden method from the
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// form parameter.
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func MethodFromForm(param string) MethodOverrideGetter {
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return func(c echo.Context) string {
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return c.FormValue(param)
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}
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}
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// MethodFromQuery is a `MethodOverrideGetter` that gets overridden method from
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// the query parameter.
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func MethodFromQuery(param string) MethodOverrideGetter {
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return func(c echo.Context) string {
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return c.QueryParam(param)
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}
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}
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