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// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package nuget
import (
"bytes"
"fmt"
"sort"
"time"
packages_model "code.gitea.io/gitea/models/packages"
nuget_module "code.gitea.io/gitea/modules/packages/nuget"
"github.com/hashicorp/go-version"
)
// https://docs.microsoft.com/en-us/nuget/api/service-index#resources
type ServiceIndexResponseV3 struct {
Version string `json:"version"`
Resources []ServiceResource `json:"resources"`
}
// https://docs.microsoft.com/en-us/nuget/api/service-index#resource
type ServiceResource struct {
ID string `json:"@id"`
Type string `json:"@type"`
}
// https://docs.microsoft.com/en-us/nuget/api/registration-base-url-resource#response
type RegistrationIndexResponse struct {
RegistrationIndexURL string `json:"@id"`
Type []string `json:"@type"`
Count int `json:"count"`
Pages []*RegistrationIndexPage `json:"items"`
}
// https://docs.microsoft.com/en-us/nuget/api/registration-base-url-resource#registration-page-object
type RegistrationIndexPage struct {
RegistrationPageURL string `json:"@id"`
Lower string `json:"lower"`
Upper string `json:"upper"`
Count int `json:"count"`
Items []*RegistrationIndexPageItem `json:"items"`
}
// https://docs.microsoft.com/en-us/nuget/api/registration-base-url-resource#registration-leaf-object-in-a-page
type RegistrationIndexPageItem struct {
RegistrationLeafURL string `json:"@id"`
PackageContentURL string `json:"packageContent"`
CatalogEntry *CatalogEntry `json:"catalogEntry"`
}
// https://docs.microsoft.com/en-us/nuget/api/registration-base-url-resource#catalog-entry
type CatalogEntry struct {
CatalogLeafURL string `json:"@id"`
PackageContentURL string `json:"packageContent"`
ID string `json:"id"`
Version string `json:"version"`
Description string `json:"description"`
ReleaseNotes string `json:"releaseNotes"`
Authors string `json:"authors"`
RequireLicenseAcceptance bool `json:"requireLicenseAcceptance"`
ProjectURL string `json:"projectURL"`
DependencyGroups []*PackageDependencyGroup `json:"dependencyGroups"`
}
// https://docs.microsoft.com/en-us/nuget/api/registration-base-url-resource#package-dependency-group
type PackageDependencyGroup struct {
TargetFramework string `json:"targetFramework"`
Dependencies []*PackageDependency `json:"dependencies"`
}
// https://docs.microsoft.com/en-us/nuget/api/registration-base-url-resource#package-dependency
type PackageDependency struct {
ID string `json:"id"`
Range string `json:"range"`
}
func createRegistrationIndexResponse(l *linkBuilder, pds []*packages_model.PackageDescriptor) *RegistrationIndexResponse {
sort.Slice(pds, func(i, j int) bool {
return pds[i].SemVer.LessThan(pds[j].SemVer)
})
items := make([]*RegistrationIndexPageItem, 0, len(pds))
for _, p := range pds {
items = append(items, createRegistrationIndexPageItem(l, p))
}
return &RegistrationIndexResponse{
RegistrationIndexURL: l.GetRegistrationIndexURL(pds[0].Package.Name),
Type: []string{"catalog:CatalogRoot", "PackageRegistration", "catalog:Permalink"},
Count: 1,
Pages: []*RegistrationIndexPage{
{
RegistrationPageURL: l.GetRegistrationIndexURL(pds[0].Package.Name),
Count: len(pds),
Lower: normalizeVersion(pds[0].SemVer),
Upper: normalizeVersion(pds[len(pds)-1].SemVer),
Items: items,
},
},
}
}
func createRegistrationIndexPageItem(l *linkBuilder, pd *packages_model.PackageDescriptor) *RegistrationIndexPageItem {
metadata := pd.Metadata.(*nuget_module.Metadata)
return &RegistrationIndexPageItem{
RegistrationLeafURL: l.GetRegistrationLeafURL(pd.Package.Name, pd.Version.Version),
PackageContentURL: l.GetPackageDownloadURL(pd.Package.Name, pd.Version.Version),
CatalogEntry: &CatalogEntry{
CatalogLeafURL: l.GetRegistrationLeafURL(pd.Package.Name, pd.Version.Version),
PackageContentURL: l.GetPackageDownloadURL(pd.Package.Name, pd.Version.Version),
ID: pd.Package.Name,
Version: pd.Version.Version,
Description: metadata.Description,
ReleaseNotes: metadata.ReleaseNotes,
Authors: metadata.Authors,
ProjectURL: metadata.ProjectURL,
DependencyGroups: createDependencyGroups(pd),
},
}
}
func createDependencyGroups(pd *packages_model.PackageDescriptor) []*PackageDependencyGroup {
metadata := pd.Metadata.(*nuget_module.Metadata)
dependencyGroups := make([]*PackageDependencyGroup, 0, len(metadata.Dependencies))
for k, v := range metadata.Dependencies {
dependencies := make([]*PackageDependency, 0, len(v))
for _, dep := range v {
dependencies = append(dependencies, &PackageDependency{
ID: dep.ID,
Range: dep.Version,
})
}
dependencyGroups = append(dependencyGroups, &PackageDependencyGroup{
TargetFramework: k,
Dependencies: dependencies,
})
}
return dependencyGroups
}
// https://docs.microsoft.com/en-us/nuget/api/registration-base-url-resource#registration-leaf
type RegistrationLeafResponse struct {
RegistrationLeafURL string `json:"@id"`
Type []string `json:"@type"`
Listed bool `json:"listed"`
PackageContentURL string `json:"packageContent"`
Published time.Time `json:"published"`
RegistrationIndexURL string `json:"registration"`
}
func createRegistrationLeafResponse(l *linkBuilder, pd *packages_model.PackageDescriptor) *RegistrationLeafResponse {
return &RegistrationLeafResponse{
Type: []string{"Package", "http://schema.nuget.org/catalog#Permalink"},
Listed: true,
Published: pd.Version.CreatedUnix.AsLocalTime(),
RegistrationLeafURL: l.GetRegistrationLeafURL(pd.Package.Name, pd.Version.Version),
PackageContentURL: l.GetPackageDownloadURL(pd.Package.Name, pd.Version.Version),
RegistrationIndexURL: l.GetRegistrationIndexURL(pd.Package.Name),
}
}
// https://docs.microsoft.com/en-us/nuget/api/package-base-address-resource#response
type PackageVersionsResponse struct {
Versions []string `json:"versions"`
}
func createPackageVersionsResponse(pds []*packages_model.PackageDescriptor) *PackageVersionsResponse {
versions := make([]string, 0, len(pds))
for _, pd := range pds {
versions = append(versions, normalizeVersion(pd.SemVer))
}
return &PackageVersionsResponse{
Versions: versions,
}
}
// https://docs.microsoft.com/en-us/nuget/api/search-query-service-resource#response
type SearchResultResponse struct {
TotalHits int64 `json:"totalHits"`
Data []*SearchResult `json:"data"`
}
// https://docs.microsoft.com/en-us/nuget/api/search-query-service-resource#search-result
type SearchResult struct {
ID string `json:"id"`
Version string `json:"version"`
Versions []*SearchResultVersion `json:"versions"`
Description string `json:"description"`
Authors string `json:"authors"`
ProjectURL string `json:"projectURL"`
RegistrationIndexURL string `json:"registration"`
}
// https://docs.microsoft.com/en-us/nuget/api/search-query-service-resource#search-result
type SearchResultVersion struct {
RegistrationLeafURL string `json:"@id"`
Version string `json:"version"`
Downloads int64 `json:"downloads"`
}
func createSearchResultResponse(l *linkBuilder, totalHits int64, pds []*packages_model.PackageDescriptor) *SearchResultResponse {
grouped := make(map[string][]*packages_model.PackageDescriptor)
for _, pd := range pds {
grouped[pd.Package.Name] = append(grouped[pd.Package.Name], pd)
}
data := make([]*SearchResult, 0, len(pds))
for _, group := range grouped {
data = append(data, createSearchResult(l, group))
}
return &SearchResultResponse{
TotalHits: totalHits,
Data: data,
}
}
func createSearchResult(l *linkBuilder, pds []*packages_model.PackageDescriptor) *SearchResult {
latest := pds[0]
versions := make([]*SearchResultVersion, 0, len(pds))
for _, pd := range pds {
if latest.SemVer.LessThan(pd.SemVer) {
latest = pd
}
versions = append(versions, &SearchResultVersion{
RegistrationLeafURL: l.GetRegistrationLeafURL(pd.Package.Name, pd.Version.Version),
Version: pd.Version.Version,
})
}
metadata := latest.Metadata.(*nuget_module.Metadata)
return &SearchResult{
ID: latest.Package.Name,
Version: latest.Version.Version,
Versions: versions,
Description: metadata.Description,
Authors: metadata.Authors,
ProjectURL: metadata.ProjectURL,
RegistrationIndexURL: l.GetRegistrationIndexURL(latest.Package.Name),
}
}
// normalizeVersion removes the metadata
func normalizeVersion(v *version.Version) string {
var buf bytes.Buffer
segments := v.Segments64()
fmt.Fprintf(&buf, "%d.%d.%d", segments[0], segments[1], segments[2])
pre := v.Prerelease()
if pre != "" {
fmt.Fprintf(&buf, "-%s", pre)
}
return buf.String()
}
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