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gitea/services/context/permission.go

153 lines
4.1 KiB
Go

// Copyright 2018 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package context
import (
"net/http"
auth_model "code.gitea.io/gitea/models/auth"
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/models/unit"
"code.gitea.io/gitea/modules/log"
)
// RequireRepoAdmin returns a middleware for requiring repository admin permission
func RequireRepoAdmin() func(ctx *Context) {
return func(ctx *Context) {
if !ctx.IsSigned || !ctx.Repo.IsAdmin() {
ctx.NotFound(ctx.Req.URL.RequestURI(), nil)
return
}
}
}
// RequireRepoWriter returns a middleware for requiring repository write to the specify unitType
func RequireRepoWriter(unitType unit.Type) func(ctx *Context) {
return func(ctx *Context) {
if !ctx.Repo.CanWrite(unitType) {
ctx.NotFound(ctx.Req.URL.RequestURI(), nil)
return
}
}
}
// CanEnableEditor checks if the user is allowed to write to the branch of the repo
func CanEnableEditor() func(ctx *Context) {
return func(ctx *Context) {
if !ctx.Repo.CanWriteToBranch(ctx, ctx.Doer, ctx.Repo.BranchName) {
ctx.NotFound("CanWriteToBranch denies permission", nil)
return
}
}
}
// RequireRepoWriterOr returns a middleware for requiring repository write to one of the unit permission
func RequireRepoWriterOr(unitTypes ...unit.Type) func(ctx *Context) {
return func(ctx *Context) {
for _, unitType := range unitTypes {
if ctx.Repo.CanWrite(unitType) {
return
}
}
ctx.NotFound(ctx.Req.URL.RequestURI(), nil)
}
}
// RequireRepoReader returns a middleware for requiring repository read to the specify unitType
func RequireRepoReader(unitType unit.Type) func(ctx *Context) {
return func(ctx *Context) {
if !ctx.Repo.CanRead(unitType) {
if unitType == unit.TypeCode && canWriteAsMaintainer(ctx) {
return
}
if log.IsTrace() {
if ctx.IsSigned {
log.Trace("Permission Denied: User %-v cannot read %-v in Repo %-v\n"+
"User in Repo has Permissions: %-+v",
ctx.Doer,
unitType,
ctx.Repo.Repository,
ctx.Repo.Permission)
} else {
log.Trace("Permission Denied: Anonymous user cannot read %-v in Repo %-v\n"+
"Anonymous user in Repo has Permissions: %-+v",
unitType,
ctx.Repo.Repository,
ctx.Repo.Permission)
}
}
ctx.NotFound(ctx.Req.URL.RequestURI(), nil)
return
}
}
}
// RequireRepoReaderOr returns a middleware for requiring repository write to one of the unit permission
func RequireRepoReaderOr(unitTypes ...unit.Type) func(ctx *Context) {
return func(ctx *Context) {
for _, unitType := range unitTypes {
if ctx.Repo.CanRead(unitType) {
return
}
}
if log.IsTrace() {
var format string
var args []any
if ctx.IsSigned {
format = "Permission Denied: User %-v cannot read ["
args = append(args, ctx.Doer)
} else {
format = "Permission Denied: Anonymous user cannot read ["
}
for _, unit := range unitTypes {
format += "%-v, "
args = append(args, unit)
}
format = format[:len(format)-2] + "] in Repo %-v\n" +
"User in Repo has Permissions: %-+v"
args = append(args, ctx.Repo.Repository, ctx.Repo.Permission)
log.Trace(format, args...)
}
ctx.NotFound(ctx.Req.URL.RequestURI(), nil)
}
}
// CheckRepoScopedToken check whether personal access token has repo scope
func CheckRepoScopedToken(ctx *Context, repo *repo_model.Repository, level auth_model.AccessTokenScopeLevel) {
if !ctx.IsBasicAuth || ctx.Data["IsApiToken"] != true {
return
}
scope, ok := ctx.Data["ApiTokenScope"].(auth_model.AccessTokenScope)
if ok { // it's a personal access token but not oauth2 token
var scopeMatched bool
requiredScopes := auth_model.GetRequiredScopes(level, auth_model.AccessTokenScopeCategoryRepository)
// check if scope only applies to public resources
publicOnly, err := scope.PublicOnly()
if err != nil {
ctx.ServerError("HasScope", err)
return
}
if publicOnly && repo.IsPrivate {
ctx.Error(http.StatusForbidden)
return
}
scopeMatched, err = scope.HasScope(requiredScopes...)
if err != nil {
ctx.ServerError("HasScope", err)
return
}
if !scopeMatched {
ctx.Error(http.StatusForbidden)
return
}
}
}