Adding upstream version 9.0.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

1 files changed, 451 insertions, 0 deletions

diff --git a/routers/api/packages/rubygems/rubygems.go b/routers/api/packages/rubygems/rubygems.go
new file mode 100644
index 0000000..dfefe2c
--- /dev/null
+++ b/routers/api/packages/rubygems/rubygems.go
@@ -0,0 +1,451 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package rubygems
+
+import (
+	"compress/gzip"
+	"compress/zlib"
+	"crypto/md5"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+
+	packages_model "code.gitea.io/gitea/models/packages"
+	"code.gitea.io/gitea/modules/optional"
+	packages_module "code.gitea.io/gitea/modules/packages"
+	rubygems_module "code.gitea.io/gitea/modules/packages/rubygems"
+	"code.gitea.io/gitea/modules/util"
+	"code.gitea.io/gitea/routers/api/packages/helper"
+	"code.gitea.io/gitea/services/context"
+	packages_service "code.gitea.io/gitea/services/packages"
+)
+
+const (
+	Sep = "---\n"
+)
+
+func apiError(ctx *context.Context, status int, obj any) {
+	helper.LogAndProcessError(ctx, status, obj, func(message string) {
+		ctx.PlainText(status, message)
+	})
+}
+
+// EnumeratePackages serves the package list
+func EnumeratePackages(ctx *context.Context) {
+	packages, err := packages_model.GetVersionsByPackageType(ctx, ctx.Package.Owner.ID, packages_model.TypeRubyGems)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	enumeratePackages(ctx, "specs.4.8", packages)
+}
+
+// EnumeratePackagesLatest serves the list of the latest version of every package
+func EnumeratePackagesLatest(ctx *context.Context) {
+	pvs, _, err := packages_model.SearchLatestVersions(ctx, &packages_model.PackageSearchOptions{
+		OwnerID:    ctx.Package.Owner.ID,
+		Type:       packages_model.TypeRubyGems,
+		IsInternal: optional.Some(false),
+	})
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	enumeratePackages(ctx, "latest_specs.4.8", pvs)
+}
+
+// EnumeratePackagesPreRelease is not supported and serves an empty list
+func EnumeratePackagesPreRelease(ctx *context.Context) {
+	enumeratePackages(ctx, "prerelease_specs.4.8", []*packages_model.PackageVersion{})
+}
+
+func enumeratePackages(ctx *context.Context, filename string, pvs []*packages_model.PackageVersion) {
+	pds, err := packages_model.GetPackageDescriptors(ctx, pvs)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	specs := make([]any, 0, len(pds))
+	for _, p := range pds {
+		specs = append(specs, []any{
+			p.Package.Name,
+			&rubygems_module.RubyUserMarshal{
+				Name:  "Gem::Version",
+				Value: []string{p.Version.Version},
+			},
+			p.Metadata.(*rubygems_module.Metadata).Platform,
+		})
+	}
+
+	ctx.SetServeHeaders(&context.ServeHeaderOptions{
+		Filename: filename + ".gz",
+	})
+
+	zw := gzip.NewWriter(ctx.Resp)
+	defer zw.Close()
+
+	zw.Name = filename
+
+	if err := rubygems_module.NewMarshalEncoder(zw).Encode(specs); err != nil {
+		ctx.ServerError("Download file failed", err)
+	}
+}
+
+// Serves info file for rubygems.org compatible /info/{gem} file.
+// See also https://guides.rubygems.org/rubygems-org-compact-index-api/.
+func ServePackageInfo(ctx *context.Context) {
+	packageName := ctx.Params("package")
+	versions, err := packages_model.GetVersionsByPackageName(
+		ctx, ctx.Package.Owner.ID, packages_model.TypeRubyGems, packageName)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+	}
+	if len(versions) == 0 {
+		apiError(ctx, http.StatusNotFound, fmt.Sprintf("Could not find package %s", packageName))
+	}
+
+	result, err := buildInfoFileForPackage(ctx, versions)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	ctx.PlainText(http.StatusOK, *result)
+}
+
+// ServeVersionsFile creates rubygems.org compatible /versions file.
+// See also https://guides.rubygems.org/rubygems-org-compact-index-api/.
+func ServeVersionsFile(ctx *context.Context) {
+	packages, err := packages_model.GetPackagesByType(
+		ctx, ctx.Package.Owner.ID, packages_model.TypeRubyGems)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+	result := new(strings.Builder)
+	result.WriteString(Sep)
+	for _, pack := range packages {
+		versions, err := packages_model.GetVersionsByPackageName(
+			ctx, ctx.Package.Owner.ID, packages_model.TypeRubyGems, pack.Name)
+		if err != nil {
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		if len(versions) == 0 {
+			// No versions left for this package, we should continue.
+			continue
+		}
+
+		fmt.Fprintf(result, "%s ", pack.Name)
+		for i, v := range versions {
+			result.WriteString(v.Version)
+			if i != len(versions)-1 {
+				result.WriteString(",")
+			}
+		}
+
+		info, err := buildInfoFileForPackage(ctx, versions)
+		if err != nil {
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+
+		checksum := md5.Sum([]byte(*info))
+		fmt.Fprintf(result, " %x\n", checksum)
+	}
+	ctx.PlainText(http.StatusOK, result.String())
+}
+
+// ServePackageSpecification serves the compressed Gemspec file of a package
+func ServePackageSpecification(ctx *context.Context) {
+	filename := ctx.Params("filename")
+
+	if !strings.HasSuffix(filename, ".gemspec.rz") {
+		apiError(ctx, http.StatusNotImplemented, nil)
+		return
+	}
+
+	pvs, err := getVersionsByFilename(ctx, filename[:len(filename)-10]+"gem")
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	if len(pvs) != 1 {
+		apiError(ctx, http.StatusNotFound, nil)
+		return
+	}
+
+	pd, err := packages_model.GetPackageDescriptor(ctx, pvs[0])
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	ctx.SetServeHeaders(&context.ServeHeaderOptions{
+		Filename: filename,
+	})
+
+	zw := zlib.NewWriter(ctx.Resp)
+	defer zw.Close()
+
+	metadata := pd.Metadata.(*rubygems_module.Metadata)
+
+	// create a Ruby Gem::Specification object
+	spec := &rubygems_module.RubyUserDef{
+		Name: "Gem::Specification",
+		Value: []any{
+			"3.2.3", // @rubygems_version
+			4,       // @specification_version,
+			pd.Package.Name,
+			&rubygems_module.RubyUserMarshal{
+				Name:  "Gem::Version",
+				Value: []string{pd.Version.Version},
+			},
+			nil,               // date
+			metadata.Summary,  // @summary
+			nil,               // @required_ruby_version
+			nil,               // @required_rubygems_version
+			metadata.Platform, // @original_platform
+			[]any{},           // @dependencies
+			nil,               // rubyforge_project
+			"",                // @email
+			metadata.Authors,
+			metadata.Description,
+			metadata.ProjectURL,
+			true,              // has_rdoc
+			metadata.Platform, // @new_platform
+			nil,
+			metadata.Licenses,
+		},
+	}
+
+	if err := rubygems_module.NewMarshalEncoder(zw).Encode(spec); err != nil {
+		ctx.ServerError("Download file failed", err)
+	}
+}
+
+// DownloadPackageFile serves the content of a package
+func DownloadPackageFile(ctx *context.Context) {
+	filename := ctx.Params("filename")
+
+	pvs, err := getVersionsByFilename(ctx, filename)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	if len(pvs) != 1 {
+		apiError(ctx, http.StatusNotFound, nil)
+		return
+	}
+
+	s, u, pf, err := packages_service.GetFileStreamByPackageVersion(
+		ctx,
+		pvs[0],
+		&packages_service.PackageFileInfo{
+			Filename: filename,
+		},
+	)
+	if err != nil {
+		if err == packages_model.ErrPackageFileNotExist {
+			apiError(ctx, http.StatusNotFound, err)
+			return
+		}
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	helper.ServePackageFile(ctx, s, u, pf)
+}
+
+// UploadPackageFile adds a file to the package. If the package does not exist, it gets created.
+func UploadPackageFile(ctx *context.Context) {
+	upload, needToClose, err := ctx.UploadStream()
+	if err != nil {
+		apiError(ctx, http.StatusBadRequest, err)
+		return
+	}
+	if needToClose {
+		defer upload.Close()
+	}
+
+	buf, err := packages_module.CreateHashedBufferFromReader(upload)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+	defer buf.Close()
+
+	rp, err := rubygems_module.ParsePackageMetaData(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
+	}
+
+	filename := getFullFilename(rp.Name, rp.Version, rp.Metadata.Platform)
+
+	_, _, err = packages_service.CreatePackageAndAddFile(
+		ctx,
+		&packages_service.PackageCreationInfo{
+			PackageInfo: packages_service.PackageInfo{
+				Owner:       ctx.Package.Owner,
+				PackageType: packages_model.TypeRubyGems,
+				Name:        rp.Name,
+				Version:     rp.Version,
+			},
+			SemverCompatible: true,
+			Creator:          ctx.Doer,
+			Metadata:         rp.Metadata,
+		},
+		&packages_service.PackageFileCreationInfo{
+			PackageFileInfo: packages_service.PackageFileInfo{
+				Filename: filename,
+			},
+			Creator: ctx.Doer,
+			Data:    buf,
+			IsLead:  true,
+		},
+	)
+	if err != nil {
+		switch err {
+		case packages_model.ErrDuplicatePackageVersion:
+			apiError(ctx, http.StatusConflict, err)
+		case packages_service.ErrQuotaTotalCount, packages_service.ErrQuotaTypeSize, packages_service.ErrQuotaTotalSize:
+			apiError(ctx, http.StatusForbidden, err)
+		default:
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		return
+	}
+
+	ctx.Status(http.StatusCreated)
+}
+
+// DeletePackage deletes a package
+func DeletePackage(ctx *context.Context) {
+	// Go populates the form only for POST, PUT and PATCH requests
+	if err := ctx.Req.ParseMultipartForm(32 << 20); err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+	packageName := ctx.FormString("gem_name")
+	packageVersion := ctx.FormString("version")
+
+	err := packages_service.RemovePackageVersionByNameAndVersion(
+		ctx,
+		ctx.Doer,
+		&packages_service.PackageInfo{
+			Owner:       ctx.Package.Owner,
+			PackageType: packages_model.TypeRubyGems,
+			Name:        packageName,
+			Version:     packageVersion,
+		},
+	)
+	if err != nil {
+		if err == packages_model.ErrPackageNotExist {
+			apiError(ctx, http.StatusNotFound, err)
+			return
+		}
+		apiError(ctx, http.StatusInternalServerError, err)
+	}
+}
+
+func writeRequirements(reqs []rubygems_module.VersionRequirement, result *strings.Builder) {
+	if len(reqs) == 0 {
+		reqs = []rubygems_module.VersionRequirement{{Restriction: ">=", Version: "0"}}
+	}
+	for i, req := range reqs {
+		if i != 0 {
+			result.WriteString("&")
+		}
+		result.WriteString(req.Restriction)
+		result.WriteString(" ")
+		result.WriteString(req.Version)
+	}
+}
+
+func buildRequirementStringFromVersion(ctx *context.Context, version *packages_model.PackageVersion) (string, error) {
+	pd, err := packages_model.GetPackageDescriptor(ctx, version)
+	if err != nil {
+		return "", err
+	}
+	metadata := pd.Metadata.(*rubygems_module.Metadata)
+	dependencyRequirements := new(strings.Builder)
+	for i, dep := range metadata.RuntimeDependencies {
+		if i != 0 {
+			dependencyRequirements.WriteString(",")
+		}
+
+		dependencyRequirements.WriteString(dep.Name)
+		dependencyRequirements.WriteString(":")
+		reqs := dep.Version
+		writeRequirements(reqs, dependencyRequirements)
+	}
+	fullname := getFullFilename(pd.Package.Name, version.Version, metadata.Platform)
+	file, err := packages_model.GetFileForVersionByName(ctx, version.ID, fullname, "")
+	if err != nil {
+		return "", err
+	}
+	blob, err := packages_model.GetBlobByID(ctx, file.BlobID)
+	if err != nil {
+		return "", err
+	}
+	additionalRequirements := new(strings.Builder)
+	fmt.Fprintf(additionalRequirements, "checksum:%s", blob.HashSHA256)
+	if len(metadata.RequiredRubyVersion) != 0 {
+		additionalRequirements.WriteString(",ruby:")
+		writeRequirements(metadata.RequiredRubyVersion, additionalRequirements)
+	}
+	if len(metadata.RequiredRubygemsVersion) != 0 {
+		additionalRequirements.WriteString(",rubygems:")
+		writeRequirements(metadata.RequiredRubygemsVersion, additionalRequirements)
+	}
+	return fmt.Sprintf("%s %s|%s", version.Version, dependencyRequirements, additionalRequirements), nil
+}
+
+func buildInfoFileForPackage(ctx *context.Context, versions []*packages_model.PackageVersion) (*string, error) {
+	result := "---\n"
+	for _, v := range versions {
+		str, err := buildRequirementStringFromVersion(ctx, v)
+		if err != nil {
+			return nil, err
+		}
+		result += str
+		result += "\n"
+	}
+	return &result, nil
+}
+
+func getFullFilename(gemName, version, platform string) string {
+	return strings.ToLower(getFullName(gemName, version, platform)) + ".gem"
+}
+
+func getFullName(gemName, version, platform string) string {
+	if platform == "" || platform == "ruby" {
+		return fmt.Sprintf("%s-%s", gemName, version)
+	}
+	return fmt.Sprintf("%s-%s-%s", gemName, version, platform)
+}
+
+func getVersionsByFilename(ctx *context.Context, filename string) ([]*packages_model.PackageVersion, error) {
+	pvs, _, err := packages_model.SearchVersions(ctx, &packages_model.PackageSearchOptions{
+		OwnerID:         ctx.Package.Owner.ID,
+		Type:            packages_model.TypeRubyGems,
+		HasFileWithName: filename,
+		IsInternal:      optional.Some(false),
+	})
+	return pvs, err
+}