Adding upstream version 9.0.0.

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

1 files changed, 465 insertions, 0 deletions

diff --git a/routers/api/packages/swift/swift.go b/routers/api/packages/swift/swift.go
new file mode 100644
index 0000000..a9da3ea
--- /dev/null
+++ b/routers/api/packages/swift/swift.go
@@ -0,0 +1,465 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package swift
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"regexp"
+	"sort"
+	"strings"
+
+	packages_model "code.gitea.io/gitea/models/packages"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/optional"
+	packages_module "code.gitea.io/gitea/modules/packages"
+	swift_module "code.gitea.io/gitea/modules/packages/swift"
+	"code.gitea.io/gitea/modules/setting"
+	"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"
+
+	"github.com/hashicorp/go-version"
+)
+
+// https://github.com/apple/swift-package-manager/blob/main/Documentation/Registry.md#35-api-versioning
+const (
+	AcceptJSON  = "application/vnd.swift.registry.v1+json"
+	AcceptSwift = "application/vnd.swift.registry.v1+swift"
+	AcceptZip   = "application/vnd.swift.registry.v1+zip"
+)
+
+var (
+	// https://github.com/apple/swift-package-manager/blob/main/Documentation/Registry.md#361-package-scope
+	scopePattern = regexp.MustCompile(`\A[a-zA-Z0-9][a-zA-Z0-9-]{0,38}\z`)
+	// https://github.com/apple/swift-package-manager/blob/main/Documentation/Registry.md#362-package-name
+	namePattern = regexp.MustCompile(`\A[a-zA-Z0-9][a-zA-Z0-9-_]{0,99}\z`)
+)
+
+type headers struct {
+	Status      int
+	ContentType string
+	Digest      string
+	Location    string
+	Link        string
+}
+
+// https://github.com/apple/swift-package-manager/blob/main/Documentation/Registry.md#35-api-versioning
+func setResponseHeaders(resp http.ResponseWriter, h *headers) {
+	if h.ContentType != "" {
+		resp.Header().Set("Content-Type", h.ContentType)
+	}
+	if h.Digest != "" {
+		resp.Header().Set("Digest", "sha256="+h.Digest)
+	}
+	if h.Location != "" {
+		resp.Header().Set("Location", h.Location)
+	}
+	if h.Link != "" {
+		resp.Header().Set("Link", h.Link)
+	}
+	resp.Header().Set("Content-Version", "1")
+	if h.Status != 0 {
+		resp.WriteHeader(h.Status)
+	}
+}
+
+// https://github.com/apple/swift-package-manager/blob/main/Documentation/Registry.md#33-error-handling
+func apiError(ctx *context.Context, status int, obj any) {
+	// https://www.rfc-editor.org/rfc/rfc7807
+	type Problem struct {
+		Status int    `json:"status"`
+		Detail string `json:"detail"`
+	}
+
+	helper.LogAndProcessError(ctx, status, obj, func(message string) {
+		setResponseHeaders(ctx.Resp, &headers{
+			Status:      status,
+			ContentType: "application/problem+json",
+		})
+		if err := json.NewEncoder(ctx.Resp).Encode(Problem{
+			Status: status,
+			Detail: message,
+		}); err != nil {
+			log.Error("JSON encode: %v", err)
+		}
+	})
+}
+
+// https://github.com/apple/swift-package-manager/blob/main/Documentation/Registry.md#35-api-versioning
+func CheckAcceptMediaType(requiredAcceptHeader string) func(ctx *context.Context) {
+	return func(ctx *context.Context) {
+		accept := ctx.Req.Header.Get("Accept")
+		if accept != "" && accept != requiredAcceptHeader {
+			apiError(ctx, http.StatusBadRequest, fmt.Sprintf("Unexpected accept header. Should be '%s'.", requiredAcceptHeader))
+		}
+	}
+}
+
+func buildPackageID(scope, name string) string {
+	return scope + "." + name
+}
+
+type Release struct {
+	URL string `json:"url"`
+}
+
+type EnumeratePackageVersionsResponse struct {
+	Releases map[string]Release `json:"releases"`
+}
+
+// https://github.com/apple/swift-package-manager/blob/main/Documentation/Registry.md#41-list-package-releases
+func EnumeratePackageVersions(ctx *context.Context) {
+	packageScope := ctx.Params("scope")
+	packageName := ctx.Params("name")
+
+	pvs, err := packages_model.GetVersionsByPackageName(ctx, ctx.Package.Owner.ID, packages_model.TypeSwift, buildPackageID(packageScope, packageName))
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+	if len(pvs) == 0 {
+		apiError(ctx, http.StatusNotFound, nil)
+		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("%sapi/packages/%s/swift/%s/%s/", setting.AppURL, ctx.Package.Owner.LowerName, packageScope, packageName)
+
+	releases := make(map[string]Release)
+	for _, pd := range pds {
+		version := pd.SemVer.String()
+		releases[version] = Release{
+			URL: baseURL + version,
+		}
+	}
+
+	setResponseHeaders(ctx.Resp, &headers{
+		Link: fmt.Sprintf(`<%s%s>; rel="latest-version"`, baseURL, pds[len(pds)-1].Version.Version),
+	})
+
+	ctx.JSON(http.StatusOK, EnumeratePackageVersionsResponse{
+		Releases: releases,
+	})
+}
+
+type Resource struct {
+	Name     string `json:"name"`
+	Type     string `json:"type"`
+	Checksum string `json:"checksum"`
+}
+
+type PackageVersionMetadataResponse struct {
+	ID        string                           `json:"id"`
+	Version   string                           `json:"version"`
+	Resources []Resource                       `json:"resources"`
+	Metadata  *swift_module.SoftwareSourceCode `json:"metadata"`
+}
+
+// https://github.com/apple/swift-package-manager/blob/main/Documentation/Registry.md#endpoint-2
+func PackageVersionMetadata(ctx *context.Context) {
+	id := buildPackageID(ctx.Params("scope"), ctx.Params("name"))
+
+	pv, err := packages_model.GetVersionByNameAndVersion(ctx, ctx.Package.Owner.ID, packages_model.TypeSwift, id, ctx.Params("version"))
+	if err != nil {
+		if errors.Is(err, util.ErrNotExist) {
+			apiError(ctx, http.StatusNotFound, err)
+		} else {
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		return
+	}
+
+	pd, err := packages_model.GetPackageDescriptor(ctx, pv)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	metadata := pd.Metadata.(*swift_module.Metadata)
+
+	setResponseHeaders(ctx.Resp, &headers{})
+
+	ctx.JSON(http.StatusOK, PackageVersionMetadataResponse{
+		ID:      id,
+		Version: pd.Version.Version,
+		Resources: []Resource{
+			{
+				Name:     "source-archive",
+				Type:     "application/zip",
+				Checksum: pd.Files[0].Blob.HashSHA256,
+			},
+		},
+		Metadata: &swift_module.SoftwareSourceCode{
+			Context:        []string{"http://schema.org/"},
+			Type:           "SoftwareSourceCode",
+			Name:           pd.PackageProperties.GetByName(swift_module.PropertyName),
+			Version:        pd.Version.Version,
+			Description:    metadata.Description,
+			Keywords:       metadata.Keywords,
+			CodeRepository: metadata.RepositoryURL,
+			License:        metadata.License,
+			ProgrammingLanguage: swift_module.ProgrammingLanguage{
+				Type: "ComputerLanguage",
+				Name: "Swift",
+				URL:  "https://swift.org",
+			},
+			Author: swift_module.Person{
+				Type:       "Person",
+				GivenName:  metadata.Author.GivenName,
+				MiddleName: metadata.Author.MiddleName,
+				FamilyName: metadata.Author.FamilyName,
+			},
+		},
+	})
+}
+
+// https://github.com/apple/swift-package-manager/blob/main/Documentation/Registry.md#43-fetch-manifest-for-a-package-release
+func DownloadManifest(ctx *context.Context) {
+	packageScope := ctx.Params("scope")
+	packageName := ctx.Params("name")
+	packageVersion := ctx.Params("version")
+
+	pv, err := packages_model.GetVersionByNameAndVersion(ctx, ctx.Package.Owner.ID, packages_model.TypeSwift, buildPackageID(packageScope, packageName), packageVersion)
+	if err != nil {
+		if errors.Is(err, util.ErrNotExist) {
+			apiError(ctx, http.StatusNotFound, err)
+		} else {
+			apiError(ctx, http.StatusInternalServerError, err)
+		}
+		return
+	}
+
+	pd, err := packages_model.GetPackageDescriptor(ctx, pv)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	swiftVersion := ctx.FormTrim("swift-version")
+	if swiftVersion != "" {
+		v, err := version.NewVersion(swiftVersion)
+		if err == nil {
+			swiftVersion = swift_module.TrimmedVersionString(v)
+		}
+	}
+	m, ok := pd.Metadata.(*swift_module.Metadata).Manifests[swiftVersion]
+	if !ok {
+		setResponseHeaders(ctx.Resp, &headers{
+			Status:   http.StatusSeeOther,
+			Location: fmt.Sprintf("%sapi/packages/%s/swift/%s/%s/%s/Package.swift", setting.AppURL, ctx.Package.Owner.LowerName, packageScope, packageName, packageVersion),
+		})
+		return
+	}
+
+	setResponseHeaders(ctx.Resp, &headers{})
+
+	filename := "Package.swift"
+	if swiftVersion != "" {
+		filename = fmt.Sprintf("Package@swift-%s.swift", swiftVersion)
+	}
+
+	ctx.ServeContent(strings.NewReader(m.Content), &context.ServeHeaderOptions{
+		ContentType:  "text/x-swift",
+		Filename:     filename,
+		LastModified: pv.CreatedUnix.AsLocalTime(),
+	})
+}
+
+// https://github.com/apple/swift-package-manager/blob/main/Documentation/Registry.md#endpoint-6
+func UploadPackageFile(ctx *context.Context) {
+	packageScope := ctx.Params("scope")
+	packageName := ctx.Params("name")
+
+	v, err := version.NewVersion(ctx.Params("version"))
+
+	if !scopePattern.MatchString(packageScope) || !namePattern.MatchString(packageName) || err != nil {
+		apiError(ctx, http.StatusBadRequest, err)
+		return
+	}
+
+	packageVersion := v.Core().String()
+
+	file, _, err := ctx.Req.FormFile("source-archive")
+	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()
+
+	var mr io.Reader
+	metadata := ctx.Req.FormValue("metadata")
+	if metadata != "" {
+		mr = strings.NewReader(metadata)
+	}
+
+	pck, err := swift_module.ParsePackage(buf, buf.Size(), mr)
+	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
+	}
+
+	pv, _, err := packages_service.CreatePackageAndAddFile(
+		ctx,
+		&packages_service.PackageCreationInfo{
+			PackageInfo: packages_service.PackageInfo{
+				Owner:       ctx.Package.Owner,
+				PackageType: packages_model.TypeSwift,
+				Name:        buildPackageID(packageScope, packageName),
+				Version:     packageVersion,
+			},
+			SemverCompatible: true,
+			Creator:          ctx.Doer,
+			Metadata:         pck.Metadata,
+			PackageProperties: map[string]string{
+				swift_module.PropertyScope: packageScope,
+				swift_module.PropertyName:  packageName,
+			},
+		},
+		&packages_service.PackageFileCreationInfo{
+			PackageFileInfo: packages_service.PackageFileInfo{
+				Filename: fmt.Sprintf("%s-%s.zip", packageName, packageVersion),
+			},
+			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
+	}
+
+	for _, url := range pck.RepositoryURLs {
+		_, err = packages_model.InsertProperty(ctx, packages_model.PropertyTypeVersion, pv.ID, swift_module.PropertyRepositoryURL, url)
+		if err != nil {
+			log.Error("InsertProperty failed: %v", err)
+		}
+	}
+
+	setResponseHeaders(ctx.Resp, &headers{})
+
+	ctx.Status(http.StatusCreated)
+}
+
+// https://github.com/apple/swift-package-manager/blob/main/Documentation/Registry.md#endpoint-4
+func DownloadPackageFile(ctx *context.Context) {
+	pv, err := packages_model.GetVersionByNameAndVersion(ctx, ctx.Package.Owner.ID, packages_model.TypeSwift, buildPackageID(ctx.Params("scope"), ctx.Params("name")), ctx.Params("version"))
+	if err != nil {
+		if errors.Is(err, util.ErrNotExist) {
+			apiError(ctx, http.StatusNotFound, err)
+		} else {
+			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
+	}
+
+	setResponseHeaders(ctx.Resp, &headers{
+		Digest: pd.Files[0].Blob.HashSHA256,
+	})
+
+	helper.ServePackageFile(ctx, s, u, pf, &context.ServeHeaderOptions{
+		Filename:     pf.Name,
+		ContentType:  "application/zip",
+		LastModified: pf.CreatedUnix.AsLocalTime(),
+	})
+}
+
+type LookupPackageIdentifiersResponse struct {
+	Identifiers []string `json:"identifiers"`
+}
+
+// https://github.com/apple/swift-package-manager/blob/main/Documentation/Registry.md#endpoint-5
+func LookupPackageIdentifiers(ctx *context.Context) {
+	url := ctx.FormTrim("url")
+	if url == "" {
+		apiError(ctx, http.StatusBadRequest, nil)
+		return
+	}
+
+	pvs, _, err := packages_model.SearchLatestVersions(ctx, &packages_model.PackageSearchOptions{
+		OwnerID: ctx.Package.Owner.ID,
+		Type:    packages_model.TypeSwift,
+		Properties: map[string]string{
+			swift_module.PropertyRepositoryURL: url,
+		},
+		IsInternal: optional.Some(false),
+	})
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	if len(pvs) == 0 {
+		apiError(ctx, http.StatusNotFound, nil)
+		return
+	}
+
+	pds, err := packages_model.GetPackageDescriptors(ctx, pvs)
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
+		return
+	}
+
+	identifiers := make([]string, 0, len(pds))
+	for _, pd := range pds {
+		identifiers = append(identifiers, pd.Package.Name)
+	}
+
+	setResponseHeaders(ctx.Resp, &headers{})
+
+	ctx.JSON(http.StatusOK, LookupPackageIdentifiersResponse{
+		Identifiers: identifiers,
+	})
+}