githaven-fork/routers/api/packages/pub/pub.go
KN4CK3R c890454769
Add direct serving of package content (#25543)
Fixes #24723

Direct serving of content aka HTTP redirect is not mentioned in any of
the package registry specs but lots of official registries do that so it
should be supported by the usual clients.
2023-07-03 15:33:28 +02:00

284 lines
8.1 KiB
Go

// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package pub
import (
"errors"
"fmt"
"io"
"net/http"
"net/url"
"sort"
"strings"
"time"
packages_model "code.gitea.io/gitea/models/packages"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/json"
"code.gitea.io/gitea/modules/log"
packages_module "code.gitea.io/gitea/modules/packages"
pub_module "code.gitea.io/gitea/modules/packages/pub"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/routers/api/packages/helper"
packages_service "code.gitea.io/gitea/services/packages"
)
func jsonResponse(ctx *context.Context, status int, obj interface{}) {
resp := ctx.Resp
resp.Header().Set("Content-Type", "application/vnd.pub.v2+json")
resp.WriteHeader(status)
if err := json.NewEncoder(resp).Encode(obj); err != nil {
log.Error("JSON encode: %v", err)
}
}
func apiError(ctx *context.Context, status int, obj interface{}) {
type Error struct {
Code string `json:"code"`
Message string `json:"message"`
}
type ErrorWrapper struct {
Error Error `json:"error"`
}
helper.LogAndProcessError(ctx, status, obj, func(message string) {
jsonResponse(ctx, status, ErrorWrapper{
Error: Error{
Code: http.StatusText(status),
Message: message,
},
})
})
}
type packageVersions struct {
Name string `json:"name"`
Latest *versionMetadata `json:"latest"`
Versions []*versionMetadata `json:"versions"`
}
type versionMetadata struct {
Version string `json:"version"`
ArchiveURL string `json:"archive_url"`
Published time.Time `json:"published"`
Pubspec interface{} `json:"pubspec,omitempty"`
}
func packageDescriptorToMetadata(baseURL string, pd *packages_model.PackageDescriptor) *versionMetadata {
return &versionMetadata{
Version: pd.Version.Version,
ArchiveURL: fmt.Sprintf("%s/files/%s.tar.gz", baseURL, url.PathEscape(pd.Version.Version)),
Published: pd.Version.CreatedUnix.AsLocalTime(),
Pubspec: pd.Metadata.(*pub_module.Metadata).Pubspec,
}
}
func baseURL(ctx *context.Context) string {
return setting.AppURL + "api/packages/" + ctx.Package.Owner.Name + "/pub/api/packages"
}
// https://github.com/dart-lang/pub/blob/master/doc/repository-spec-v2.md#list-all-versions-of-a-package
func EnumeratePackageVersions(ctx *context.Context) {
packageName := ctx.Params("id")
pvs, err := packages_model.GetVersionsByPackageName(ctx, ctx.Package.Owner.ID, packages_model.TypePub, packageName)
if err != nil {
apiError(ctx, http.StatusInternalServerError, err)
return
}
if len(pvs) == 0 {
apiError(ctx, http.StatusNotFound, err)
return
}
pds, err := packages_model.GetPackageDescriptors(ctx, pvs)
if err != nil {
apiError(ctx, http.StatusInternalServerError, err)
return
}
sort.Slice(pds, func(i, j int) bool {
return pds[i].SemVer.LessThan(pds[j].SemVer)
})
baseURL := fmt.Sprintf("%s/%s", baseURL(ctx), url.PathEscape(pds[0].Package.Name))
versions := make([]*versionMetadata, 0, len(pds))
for _, pd := range pds {
versions = append(versions, packageDescriptorToMetadata(baseURL, pd))
}
jsonResponse(ctx, http.StatusOK, &packageVersions{
Name: pds[0].Package.Name,
Latest: packageDescriptorToMetadata(baseURL, pds[0]),
Versions: versions,
})
}
// https://github.com/dart-lang/pub/blob/master/doc/repository-spec-v2.md#deprecated-inspect-a-specific-version-of-a-package
func PackageVersionMetadata(ctx *context.Context) {
packageName := ctx.Params("id")
packageVersion := ctx.Params("version")
pv, err := packages_model.GetVersionByNameAndVersion(ctx, ctx.Package.Owner.ID, packages_model.TypePub, packageName, packageVersion)
if err != nil {
if err == packages_model.ErrPackageNotExist {
apiError(ctx, http.StatusNotFound, err)
return
}
apiError(ctx, http.StatusInternalServerError, err)
return
}
pd, err := packages_model.GetPackageDescriptor(ctx, pv)
if err != nil {
apiError(ctx, http.StatusInternalServerError, err)
return
}
jsonResponse(ctx, http.StatusOK, packageDescriptorToMetadata(
fmt.Sprintf("%s/%s", baseURL(ctx), url.PathEscape(pd.Package.Name)),
pd,
))
}
// https://github.com/dart-lang/pub/blob/master/doc/repository-spec-v2.md#publishing-packages
func RequestUpload(ctx *context.Context) {
type UploadRequest struct {
URL string `json:"url"`
Fields map[string]string `json:"fields"`
}
jsonResponse(ctx, http.StatusOK, UploadRequest{
URL: baseURL(ctx) + "/versions/new/upload",
Fields: make(map[string]string),
})
}
// https://github.com/dart-lang/pub/blob/master/doc/repository-spec-v2.md#publishing-packages
func UploadPackageFile(ctx *context.Context) {
file, _, err := ctx.Req.FormFile("file")
if err != nil {
apiError(ctx, http.StatusBadRequest, err)
return
}
defer file.Close()
buf, err := packages_module.CreateHashedBufferFromReader(file)
if err != nil {
apiError(ctx, http.StatusInternalServerError, err)
return
}
defer buf.Close()
pck, err := pub_module.ParsePackage(buf)
if err != nil {
if errors.Is(err, util.ErrInvalidArgument) {
apiError(ctx, http.StatusBadRequest, err)
} else {
apiError(ctx, http.StatusInternalServerError, err)
}
return
}
if _, err := buf.Seek(0, io.SeekStart); err != nil {
apiError(ctx, http.StatusInternalServerError, err)
return
}
_, _, err = packages_service.CreatePackageAndAddFile(
&packages_service.PackageCreationInfo{
PackageInfo: packages_service.PackageInfo{
Owner: ctx.Package.Owner,
PackageType: packages_model.TypePub,
Name: pck.Name,
Version: pck.Version,
},
SemverCompatible: true,
Creator: ctx.Doer,
Metadata: pck.Metadata,
},
&packages_service.PackageFileCreationInfo{
PackageFileInfo: packages_service.PackageFileInfo{
Filename: strings.ToLower(pck.Version + ".tar.gz"),
},
Creator: ctx.Doer,
Data: buf,
IsLead: true,
},
)
if err != nil {
switch err {
case packages_model.ErrDuplicatePackageVersion:
apiError(ctx, http.StatusBadRequest, err)
case packages_service.ErrQuotaTotalCount, packages_service.ErrQuotaTypeSize, packages_service.ErrQuotaTotalSize:
apiError(ctx, http.StatusForbidden, err)
default:
apiError(ctx, http.StatusInternalServerError, err)
}
return
}
ctx.Resp.Header().Set("Location", fmt.Sprintf("%s/versions/new/finalize/%s/%s", baseURL(ctx), url.PathEscape(pck.Name), url.PathEscape(pck.Version)))
ctx.Status(http.StatusNoContent)
}
// https://github.com/dart-lang/pub/blob/master/doc/repository-spec-v2.md#publishing-packages
func FinalizePackage(ctx *context.Context) {
packageName := ctx.Params("id")
packageVersion := ctx.Params("version")
_, err := packages_model.GetVersionByNameAndVersion(ctx, ctx.Package.Owner.ID, packages_model.TypePub, packageName, packageVersion)
if err != nil {
if err == packages_model.ErrPackageNotExist {
apiError(ctx, http.StatusNotFound, err)
return
}
apiError(ctx, http.StatusInternalServerError, err)
return
}
type Success struct {
Message string `json:"message"`
}
type SuccessWrapper struct {
Success Success `json:"success"`
}
jsonResponse(ctx, http.StatusOK, SuccessWrapper{Success{}})
}
// https://github.com/dart-lang/pub/blob/master/doc/repository-spec-v2.md#deprecated-download-a-specific-version-of-a-package
func DownloadPackageFile(ctx *context.Context) {
packageName := ctx.Params("id")
packageVersion := strings.TrimSuffix(ctx.Params("version"), ".tar.gz")
pv, err := packages_model.GetVersionByNameAndVersion(ctx, ctx.Package.Owner.ID, packages_model.TypePub, packageName, packageVersion)
if err != nil {
if err == packages_model.ErrPackageNotExist {
apiError(ctx, http.StatusNotFound, err)
return
}
apiError(ctx, http.StatusInternalServerError, err)
return
}
pd, err := packages_model.GetPackageDescriptor(ctx, pv)
if err != nil {
apiError(ctx, http.StatusInternalServerError, err)
return
}
pf := pd.Files[0].File
s, u, _, err := packages_service.GetPackageFileStream(ctx, pf)
if err != nil {
apiError(ctx, http.StatusInternalServerError, err)
return
}
helper.ServePackageFile(ctx, s, u, pf)
}