mirror of
https://github.com/go-gitea/gitea.git
synced 2024-12-15 22:32:24 +01:00
84d05516dc
- Added new tests to cover corner cases - Replace existing regex with new one Closes #26551 --- As @silverwind suggested, I started from [validate-npm-package-name](https://github.com/npm/validate-npm-package-name), but found this solution too complicated. Then I tried to fix existing regex myself, but thought, that exclude all restricted symbols is harder, than set only allowed symbols. Then I search a bit more and found [package-name-regex](https://github.com/dword-design/package-name-regex) and regex from it works for all new test cases. Let me know, if more information or help with this PR is needed.
288 lines
9.3 KiB
Go
288 lines
9.3 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package npm
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import (
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"bytes"
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"crypto/sha1"
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"crypto/sha512"
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"encoding/base64"
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"fmt"
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"io"
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"regexp"
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"strings"
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"time"
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"code.gitea.io/gitea/modules/json"
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"code.gitea.io/gitea/modules/util"
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"code.gitea.io/gitea/modules/validation"
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"github.com/hashicorp/go-version"
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)
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var (
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// ErrInvalidPackage indicates an invalid package
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ErrInvalidPackage = util.NewInvalidArgumentErrorf("package is invalid")
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// ErrInvalidPackageName indicates an invalid name
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ErrInvalidPackageName = util.NewInvalidArgumentErrorf("package name is invalid")
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// ErrInvalidPackageVersion indicates an invalid version
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ErrInvalidPackageVersion = util.NewInvalidArgumentErrorf("package version is invalid")
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// ErrInvalidAttachment indicates a invalid attachment
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ErrInvalidAttachment = util.NewInvalidArgumentErrorf("package attachment is invalid")
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// ErrInvalidIntegrity indicates an integrity validation error
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ErrInvalidIntegrity = util.NewInvalidArgumentErrorf("failed to validate integrity")
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)
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var nameMatch = regexp.MustCompile(`^(@[a-z0-9-][a-z0-9-._]*/)?[a-z0-9-][a-z0-9-._]*$`)
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// Package represents a npm package
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type Package struct {
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Name string
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Version string
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DistTags []string
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Metadata Metadata
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Filename string
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Data []byte
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}
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// PackageMetadata https://github.com/npm/registry/blob/master/docs/REGISTRY-API.md#package
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type PackageMetadata struct {
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ID string `json:"_id"`
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Name string `json:"name"`
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Description string `json:"description"`
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DistTags map[string]string `json:"dist-tags,omitempty"`
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Versions map[string]*PackageMetadataVersion `json:"versions"`
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Readme string `json:"readme,omitempty"`
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Maintainers []User `json:"maintainers,omitempty"`
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Time map[string]time.Time `json:"time,omitempty"`
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Homepage string `json:"homepage,omitempty"`
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Keywords []string `json:"keywords,omitempty"`
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Repository Repository `json:"repository,omitempty"`
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Author User `json:"author"`
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ReadmeFilename string `json:"readmeFilename,omitempty"`
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Users map[string]bool `json:"users,omitempty"`
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License string `json:"license,omitempty"`
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}
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// PackageMetadataVersion documentation: https://github.com/npm/registry/blob/master/docs/REGISTRY-API.md#version
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// PackageMetadataVersion response: https://github.com/npm/registry/blob/master/docs/responses/package-metadata.md#abbreviated-version-object
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type PackageMetadataVersion struct {
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ID string `json:"_id"`
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Name string `json:"name"`
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Version string `json:"version"`
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Description string `json:"description"`
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Author User `json:"author"`
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Homepage string `json:"homepage,omitempty"`
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License string `json:"license,omitempty"`
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Repository Repository `json:"repository,omitempty"`
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Keywords []string `json:"keywords,omitempty"`
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Dependencies map[string]string `json:"dependencies,omitempty"`
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DevDependencies map[string]string `json:"devDependencies,omitempty"`
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PeerDependencies map[string]string `json:"peerDependencies,omitempty"`
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Bin map[string]string `json:"bin,omitempty"`
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OptionalDependencies map[string]string `json:"optionalDependencies,omitempty"`
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Readme string `json:"readme,omitempty"`
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Dist PackageDistribution `json:"dist"`
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Maintainers []User `json:"maintainers,omitempty"`
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}
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// PackageDistribution https://github.com/npm/registry/blob/master/docs/REGISTRY-API.md#version
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type PackageDistribution struct {
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Integrity string `json:"integrity"`
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Shasum string `json:"shasum"`
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Tarball string `json:"tarball"`
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FileCount int `json:"fileCount,omitempty"`
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UnpackedSize int `json:"unpackedSize,omitempty"`
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NpmSignature string `json:"npm-signature,omitempty"`
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}
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type PackageSearch struct {
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Objects []*PackageSearchObject `json:"objects"`
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Total int64 `json:"total"`
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}
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type PackageSearchObject struct {
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Package *PackageSearchPackage `json:"package"`
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}
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type PackageSearchPackage struct {
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Scope string `json:"scope"`
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Name string `json:"name"`
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Version string `json:"version"`
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Date time.Time `json:"date"`
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Description string `json:"description"`
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Author User `json:"author"`
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Publisher User `json:"publisher"`
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Maintainers []User `json:"maintainers"`
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Keywords []string `json:"keywords,omitempty"`
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Links *PackageSearchPackageLinks `json:"links"`
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}
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type PackageSearchPackageLinks struct {
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Registry string `json:"npm"`
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Homepage string `json:"homepage,omitempty"`
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Repository string `json:"repository,omitempty"`
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}
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// User https://github.com/npm/registry/blob/master/docs/REGISTRY-API.md#package
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type User struct {
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Username string `json:"username,omitempty"`
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Name string `json:"name"`
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Email string `json:"email,omitempty"`
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URL string `json:"url,omitempty"`
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}
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// UnmarshalJSON is needed because User objects can be strings or objects
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func (u *User) UnmarshalJSON(data []byte) error {
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switch data[0] {
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case '"':
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if err := json.Unmarshal(data, &u.Name); err != nil {
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return err
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}
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case '{':
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var tmp struct {
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Username string `json:"username"`
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Name string `json:"name"`
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Email string `json:"email"`
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URL string `json:"url"`
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}
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if err := json.Unmarshal(data, &tmp); err != nil {
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return err
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}
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u.Username = tmp.Username
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u.Name = tmp.Name
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u.Email = tmp.Email
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u.URL = tmp.URL
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}
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return nil
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}
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// Repository https://github.com/npm/registry/blob/master/docs/REGISTRY-API.md#version
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type Repository struct {
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Type string `json:"type"`
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URL string `json:"url"`
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}
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// PackageAttachment https://github.com/npm/registry/blob/master/docs/REGISTRY-API.md#package
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type PackageAttachment struct {
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ContentType string `json:"content_type"`
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Data string `json:"data"`
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Length int `json:"length"`
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}
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type packageUpload struct {
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PackageMetadata
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Attachments map[string]*PackageAttachment `json:"_attachments"`
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}
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// ParsePackage parses the content into a npm package
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func ParsePackage(r io.Reader) (*Package, error) {
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var upload packageUpload
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if err := json.NewDecoder(r).Decode(&upload); err != nil {
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return nil, err
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}
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for _, meta := range upload.Versions {
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if !validateName(meta.Name) {
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return nil, ErrInvalidPackageName
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}
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v, err := version.NewSemver(meta.Version)
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if err != nil {
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return nil, ErrInvalidPackageVersion
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}
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scope := ""
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name := meta.Name
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nameParts := strings.SplitN(meta.Name, "/", 2)
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if len(nameParts) == 2 {
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scope = nameParts[0]
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name = nameParts[1]
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}
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if !validation.IsValidURL(meta.Homepage) {
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meta.Homepage = ""
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}
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p := &Package{
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Name: meta.Name,
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Version: v.String(),
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DistTags: make([]string, 0, 1),
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Metadata: Metadata{
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Scope: scope,
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Name: name,
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Description: meta.Description,
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Author: meta.Author.Name,
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License: meta.License,
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ProjectURL: meta.Homepage,
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Keywords: meta.Keywords,
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Dependencies: meta.Dependencies,
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DevelopmentDependencies: meta.DevDependencies,
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PeerDependencies: meta.PeerDependencies,
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OptionalDependencies: meta.OptionalDependencies,
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Bin: meta.Bin,
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Readme: meta.Readme,
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Repository: meta.Repository,
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},
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}
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for tag := range upload.DistTags {
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p.DistTags = append(p.DistTags, tag)
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}
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p.Filename = strings.ToLower(fmt.Sprintf("%s-%s.tgz", name, p.Version))
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attachment := func() *PackageAttachment {
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for _, a := range upload.Attachments {
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return a
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}
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return nil
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}()
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if attachment == nil || len(attachment.Data) == 0 {
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return nil, ErrInvalidAttachment
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}
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data, err := base64.StdEncoding.DecodeString(attachment.Data)
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if err != nil {
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return nil, ErrInvalidAttachment
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}
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p.Data = data
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integrity := strings.SplitN(meta.Dist.Integrity, "-", 2)
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if len(integrity) != 2 {
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return nil, ErrInvalidIntegrity
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}
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integrityHash, err := base64.StdEncoding.DecodeString(integrity[1])
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if err != nil {
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return nil, ErrInvalidIntegrity
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}
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var hash []byte
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switch integrity[0] {
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case "sha1":
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tmp := sha1.Sum(data)
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hash = tmp[:]
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case "sha512":
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tmp := sha512.Sum512(data)
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hash = tmp[:]
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}
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if !bytes.Equal(integrityHash, hash) {
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return nil, ErrInvalidIntegrity
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}
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return p, nil
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}
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return nil, ErrInvalidPackage
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}
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func validateName(name string) bool {
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if strings.TrimSpace(name) != name {
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return false
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}
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if len(name) == 0 || len(name) > 214 {
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return false
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}
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return nameMatch.MatchString(name)
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}
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