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824f9cc0ce
- rework to apply standard hierarchy - move auth to dedicated sub package - move header to dedicated sub package Package Static: - fix bugs
106 lines
3.3 KiB
Go
106 lines
3.3 KiB
Go
/*
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* MIT License
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*
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* Copyright (c) 2019 Nicolas JUHEL
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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package auth
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import (
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"fmt"
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"net/http"
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"strings"
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ginsdk "github.com/gin-gonic/gin"
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liberr "github.com/nabbar/golib/errors"
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liblog "github.com/nabbar/golib/logger"
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loglvl "github.com/nabbar/golib/logger/level"
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librtr "github.com/nabbar/golib/router"
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rtrhdr "github.com/nabbar/golib/router/authheader"
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)
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type authorization struct {
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log liblog.FuncLog
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check func(AuthHeader string) (rtrhdr.AuthCode, liberr.Error)
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router []ginsdk.HandlerFunc
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authType string
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}
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func (a *authorization) Register(router ...ginsdk.HandlerFunc) ginsdk.HandlerFunc {
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a.router = router
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return a.Handler
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}
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func (a *authorization) Append(router ...ginsdk.HandlerFunc) {
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a.router = append(a.router, router...)
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}
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func (a *authorization) logDebug(msg string, args ...interface{}) {
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if a.log != nil {
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a.log().Entry(loglvl.DebugLevel, msg, args...)
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}
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}
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func (a *authorization) Handler(c *ginsdk.Context) {
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// Search user in the slice of allowed credentials
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auth := c.Request.Header.Get(rtrhdr.HeaderAuthSend)
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if auth == "" {
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rtrhdr.AuthRequire(c, fmt.Errorf("%v", librtr.ErrorHeaderAuthMissing.Error(nil).GetErrorSlice()))
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return
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}
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authValue := ""
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if strings.ContainsAny(auth, " ") {
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sAuth := strings.SplitN(auth, " ", 2)
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if len(sAuth) == 2 && strings.ToUpper(sAuth[0]) == a.authType {
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authValue = sAuth[1]
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}
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}
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if authValue == "" {
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rtrhdr.AuthRequire(c, fmt.Errorf("%v", librtr.ErrorHeaderAuthEmpty.Error(nil).GetErrorSlice()))
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return
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} else {
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code, err := a.check(authValue)
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switch code {
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case rtrhdr.AuthCodeSuccess:
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for _, r := range a.router {
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a.logDebug("Calling router '%s=%s'", c.Request.Method, c.Request.URL.RawPath)
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r(c)
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}
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case rtrhdr.AuthCodeRequire:
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rtrhdr.AuthRequire(c, fmt.Errorf("%v", librtr.ErrorHeaderAuthRequire.Error(err).GetErrorSlice()))
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case rtrhdr.AuthCodeForbidden:
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rtrhdr.AuthForbidden(c, fmt.Errorf("%v", librtr.ErrorHeaderAuthForbidden.Error(err).GetErrorSlice()))
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default:
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c.Errors = append(c.Errors, &ginsdk.Error{
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Err: fmt.Errorf("%v", librtr.ErrorHeaderAuth.Error(err).GetErrorSlice()),
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Type: ginsdk.ErrorTypePrivate,
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})
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c.AbortWithStatus(http.StatusInternalServerError)
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}
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}
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}
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