mirror of https://github.com/gogs/gogs.git
107 lines
3.0 KiB
Go
107 lines
3.0 KiB
Go
// Copyright 2016 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package context
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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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"github.com/pkg/errors"
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"github.com/unknwon/paginater"
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"gopkg.in/macaron.v1"
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log "unknwon.dev/clog/v2"
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"gogs.io/gogs/internal/conf"
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"gogs.io/gogs/internal/errutil"
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)
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type APIContext struct {
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*Context // TODO: Reduce to only needed fields instead of full shadow
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// Base URL for the version of API endpoints, e.g. https://try.gogs.io/api/v1
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BaseURL string
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Org *APIOrganization
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}
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// FIXME: move this constant to github.com/gogs/go-gogs-client
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const DocURL = "https://github.com/gogs/docs-api"
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// NoContent renders the 204 response.
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func (c *APIContext) NoContent() {
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c.Status(http.StatusNoContent)
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}
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// NotFound renders the 404 response.
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func (c *APIContext) NotFound() {
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c.Status(http.StatusNotFound)
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}
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// ErrorStatus renders error with given status code.
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func (c *APIContext) ErrorStatus(status int, err error) {
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c.JSON(status, map[string]string{
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"message": err.Error(),
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"url": DocURL,
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})
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}
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// Error renders the 500 response.
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func (c *APIContext) Error(err error, msg string) {
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log.ErrorDepth(4, "%s: %v", msg, err)
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c.ErrorStatus(
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http.StatusInternalServerError,
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errors.New("Something went wrong, please check the server logs for more information."),
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)
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}
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// Errorf renders the 500 response with formatted message.
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func (c *APIContext) Errorf(err error, format string, args ...any) {
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c.Error(err, fmt.Sprintf(format, args...))
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}
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// NotFoundOrError use error check function to determine if the error
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// is about not found. It responses with 404 status code for not found error,
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// or error context description for logging purpose of 500 server error.
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func (c *APIContext) NotFoundOrError(err error, msg string) {
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if errutil.IsNotFound(err) {
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c.NotFound()
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return
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}
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c.Error(err, msg)
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}
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// SetLinkHeader sets pagination link header by given total number and page size.
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func (c *APIContext) SetLinkHeader(total, pageSize int) {
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page := paginater.New(total, pageSize, c.QueryInt("page"), 0)
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links := make([]string, 0, 4)
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if page.HasNext() {
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links = append(links, fmt.Sprintf("<%s%s?page=%d>; rel=\"next\"", conf.Server.ExternalURL, c.Req.URL.Path[1:], page.Next()))
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}
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if !page.IsLast() {
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links = append(links, fmt.Sprintf("<%s%s?page=%d>; rel=\"last\"", conf.Server.ExternalURL, c.Req.URL.Path[1:], page.TotalPages()))
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}
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if !page.IsFirst() {
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links = append(links, fmt.Sprintf("<%s%s?page=1>; rel=\"first\"", conf.Server.ExternalURL, c.Req.URL.Path[1:]))
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}
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if page.HasPrevious() {
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links = append(links, fmt.Sprintf("<%s%s?page=%d>; rel=\"prev\"", conf.Server.ExternalURL, c.Req.URL.Path[1:], page.Previous()))
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}
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if len(links) > 0 {
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c.Header().Set("Link", strings.Join(links, ","))
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}
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}
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func APIContexter() macaron.Handler {
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return func(ctx *Context) {
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c := &APIContext{
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Context: ctx,
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BaseURL: conf.Server.ExternalURL + "api/v1",
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}
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ctx.Map(c)
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}
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}
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