87 lines
2.9 KiB
Go
87 lines
2.9 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package context
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import (
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"context"
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"fmt"
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"net/http"
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"time"
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"code.gitea.io/gitea/modules/graceful"
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"code.gitea.io/gitea/modules/process"
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"code.gitea.io/gitea/modules/web/middleware"
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)
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// PrivateContext represents a context for private routes
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type PrivateContext struct {
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*Context
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Override context.Context
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}
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// Deadline is part of the interface for context.Context and we pass this to the request context
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func (ctx *PrivateContext) Deadline() (deadline time.Time, ok bool) {
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if ctx.Override != nil {
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return ctx.Override.Deadline()
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}
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return ctx.Req.Context().Deadline()
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}
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// Done is part of the interface for context.Context and we pass this to the request context
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func (ctx *PrivateContext) Done() <-chan struct{} {
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if ctx.Override != nil {
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return ctx.Override.Done()
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}
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return ctx.Req.Context().Done()
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}
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// Err is part of the interface for context.Context and we pass this to the request context
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func (ctx *PrivateContext) Err() error {
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if ctx.Override != nil {
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return ctx.Override.Err()
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}
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return ctx.Req.Context().Err()
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}
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var privateContextKey interface{} = "default_private_context"
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// WithPrivateContext set up private context in request
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func WithPrivateContext(req *http.Request, ctx *PrivateContext) *http.Request {
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return req.WithContext(context.WithValue(req.Context(), privateContextKey, ctx))
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}
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// GetPrivateContext returns a context for Private routes
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func GetPrivateContext(req *http.Request) *PrivateContext {
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return req.Context().Value(privateContextKey).(*PrivateContext)
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}
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// PrivateContexter returns apicontext as middleware
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func PrivateContexter() func(http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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ctx := &PrivateContext{
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Context: &Context{
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Resp: NewResponse(w),
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Data: middleware.GetContextData(req.Context()),
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},
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}
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defer ctx.Close()
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ctx.Req = WithPrivateContext(req, ctx)
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ctx.Data["Context"] = ctx
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next.ServeHTTP(ctx.Resp, ctx.Req)
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})
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}
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}
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// OverrideContext overrides the underlying request context for Done() etc.
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// This function should be used when there is a need for work to continue even if the request has been cancelled.
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// Primarily this affects hook/post-receive and hook/proc-receive both of which need to continue working even if
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// the underlying request has timed out from the ssh/http push
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func OverrideContext(ctx *PrivateContext) (cancel context.CancelFunc) {
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// We now need to override the request context as the base for our work because even if the request is cancelled we have to continue this work
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ctx.Override, _, cancel = process.GetManager().AddTypedContext(graceful.GetManager().HammerContext(), fmt.Sprintf("PrivateContext: %s", ctx.Req.RequestURI), process.RequestProcessType, true)
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return cancel
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}
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