431 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			431 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Go
		
	
	
	
| // Copyright 2021 The Gitea Authors. All rights reserved.
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| // SPDX-License-Identifier: MIT
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| 
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| package maven
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| 
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| import (
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| 	"crypto/md5"
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| 	"crypto/sha1"
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| 	"crypto/sha512"
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| 	"encoding/hex"
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| 	"encoding/xml"
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| 	"errors"
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| 	"io"
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| 	"net/http"
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| 	"path/filepath"
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| 	"regexp"
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| 	"sort"
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| 	"strconv"
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| 	"strings"
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| 
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| 	packages_model "code.gitea.io/gitea/models/packages"
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| 	"code.gitea.io/gitea/modules/context"
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| 	"code.gitea.io/gitea/modules/json"
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| 	"code.gitea.io/gitea/modules/log"
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| 	packages_module "code.gitea.io/gitea/modules/packages"
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| 	maven_module "code.gitea.io/gitea/modules/packages/maven"
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| 	"code.gitea.io/gitea/routers/api/packages/helper"
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| 	packages_service "code.gitea.io/gitea/services/packages"
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| 
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| 	"github.com/minio/sha256-simd"
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| )
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| 
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| const (
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| 	mavenMetadataFile = "maven-metadata.xml"
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| 	extensionMD5      = ".md5"
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| 	extensionSHA1     = ".sha1"
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| 	extensionSHA256   = ".sha256"
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| 	extensionSHA512   = ".sha512"
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| 	extensionPom      = ".pom"
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| 	extensionJar      = ".jar"
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| 	contentTypeJar    = "application/java-archive"
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| 	contentTypeXML    = "text/xml"
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| )
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| 
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| var (
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| 	errInvalidParameters = errors.New("request parameters are invalid")
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| 	illegalCharacters    = regexp.MustCompile(`[\\/:"<>|?\*]`)
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| )
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| 
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| func apiError(ctx *context.Context, status int, obj any) {
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| 	helper.LogAndProcessError(ctx, status, obj, func(message string) {
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| 		// The maven client does not present the error message to the user. Log it for users with access to server logs.
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| 		if status == http.StatusBadRequest || status == http.StatusInternalServerError {
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| 			log.Error(message)
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| 		}
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| 
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| 		ctx.PlainText(status, message)
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| 	})
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| }
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| 
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| // DownloadPackageFile serves the content of a package
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| func DownloadPackageFile(ctx *context.Context) {
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| 	handlePackageFile(ctx, true)
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| }
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| 
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| // ProvidePackageFileHeader provides only the headers describing a package
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| func ProvidePackageFileHeader(ctx *context.Context) {
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| 	handlePackageFile(ctx, false)
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| }
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| 
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| func handlePackageFile(ctx *context.Context, serveContent bool) {
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| 	params, err := extractPathParameters(ctx)
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| 	if err != nil {
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| 		apiError(ctx, http.StatusBadRequest, err)
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| 		return
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| 	}
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| 
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| 	if params.IsMeta && params.Version == "" {
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| 		serveMavenMetadata(ctx, params)
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| 	} else {
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| 		servePackageFile(ctx, params, serveContent)
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| 	}
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| }
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| 
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| func serveMavenMetadata(ctx *context.Context, params parameters) {
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| 	// /com/foo/project/maven-metadata.xml[.md5/.sha1/.sha256/.sha512]
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| 
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| 	packageName := params.GroupID + "-" + params.ArtifactID
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| 	pvs, err := packages_model.GetVersionsByPackageName(ctx, ctx.Package.Owner.ID, packages_model.TypeMaven, packageName)
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| 	if err != nil {
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| 		apiError(ctx, http.StatusInternalServerError, err)
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| 		return
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| 	}
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| 	if len(pvs) == 0 {
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| 		apiError(ctx, http.StatusNotFound, packages_model.ErrPackageNotExist)
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| 		return
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| 	}
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| 
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| 	pds, err := packages_model.GetPackageDescriptors(ctx, pvs)
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| 	if err != nil {
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| 		apiError(ctx, http.StatusInternalServerError, err)
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| 		return
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| 	}
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| 
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| 	sort.Slice(pds, func(i, j int) bool {
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| 		// Maven and Gradle order packages by their creation timestamp and not by their version string
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| 		return pds[i].Version.CreatedUnix < pds[j].Version.CreatedUnix
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| 	})
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| 
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| 	xmlMetadata, err := xml.Marshal(createMetadataResponse(pds))
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| 	if err != nil {
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| 		apiError(ctx, http.StatusInternalServerError, err)
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| 		return
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| 	}
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| 	xmlMetadataWithHeader := append([]byte(xml.Header), xmlMetadata...)
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| 
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| 	latest := pds[len(pds)-1]
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| 	ctx.Resp.Header().Set("Last-Modified", latest.Version.CreatedUnix.Format(http.TimeFormat))
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| 
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| 	ext := strings.ToLower(filepath.Ext(params.Filename))
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| 	if isChecksumExtension(ext) {
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| 		var hash []byte
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| 		switch ext {
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| 		case extensionMD5:
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| 			tmp := md5.Sum(xmlMetadataWithHeader)
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| 			hash = tmp[:]
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| 		case extensionSHA1:
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| 			tmp := sha1.Sum(xmlMetadataWithHeader)
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| 			hash = tmp[:]
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| 		case extensionSHA256:
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| 			tmp := sha256.Sum256(xmlMetadataWithHeader)
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| 			hash = tmp[:]
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| 		case extensionSHA512:
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| 			tmp := sha512.Sum512(xmlMetadataWithHeader)
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| 			hash = tmp[:]
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| 		}
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| 		ctx.PlainText(http.StatusOK, hex.EncodeToString(hash))
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| 		return
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| 	}
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| 
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| 	ctx.Resp.Header().Set("Content-Length", strconv.Itoa(len(xmlMetadataWithHeader)))
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| 	ctx.Resp.Header().Set("Content-Type", contentTypeXML)
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| 
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| 	if _, err := ctx.Resp.Write(xmlMetadataWithHeader); err != nil {
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| 		log.Error("write bytes failed: %v", err)
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| 	}
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| }
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| 
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| func servePackageFile(ctx *context.Context, params parameters, serveContent bool) {
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| 	packageName := params.GroupID + "-" + params.ArtifactID
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| 
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| 	pv, err := packages_model.GetVersionByNameAndVersion(ctx, ctx.Package.Owner.ID, packages_model.TypeMaven, packageName, params.Version)
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| 	if err != nil {
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| 		if err == packages_model.ErrPackageNotExist {
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| 			apiError(ctx, http.StatusNotFound, err)
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| 		} else {
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| 			apiError(ctx, http.StatusInternalServerError, err)
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| 		}
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| 		return
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| 	}
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| 
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| 	filename := params.Filename
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| 
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| 	ext := strings.ToLower(filepath.Ext(filename))
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| 	if isChecksumExtension(ext) {
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| 		filename = filename[:len(filename)-len(ext)]
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| 	}
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| 
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| 	pf, err := packages_model.GetFileForVersionByName(ctx, pv.ID, filename, packages_model.EmptyFileKey)
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| 	if err != nil {
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| 		if err == packages_model.ErrPackageFileNotExist {
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| 			apiError(ctx, http.StatusNotFound, err)
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| 		} else {
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| 			apiError(ctx, http.StatusInternalServerError, err)
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| 		}
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| 		return
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| 	}
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| 
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| 	pb, err := packages_model.GetBlobByID(ctx, pf.BlobID)
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| 	if err != nil {
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| 		apiError(ctx, http.StatusInternalServerError, err)
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| 		return
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| 	}
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| 
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| 	if isChecksumExtension(ext) {
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| 		var hash string
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| 		switch ext {
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| 		case extensionMD5:
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| 			hash = pb.HashMD5
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| 		case extensionSHA1:
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| 			hash = pb.HashSHA1
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| 		case extensionSHA256:
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| 			hash = pb.HashSHA256
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| 		case extensionSHA512:
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| 			hash = pb.HashSHA512
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| 		}
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| 		ctx.PlainText(http.StatusOK, hash)
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| 		return
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| 	}
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| 
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| 	opts := &context.ServeHeaderOptions{
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| 		ContentLength: &pb.Size,
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| 		LastModified:  pf.CreatedUnix.AsLocalTime(),
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| 	}
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| 	switch ext {
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| 	case extensionJar:
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| 		opts.ContentType = contentTypeJar
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| 	case extensionPom:
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| 		opts.ContentType = contentTypeXML
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| 	}
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| 
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| 	if !serveContent {
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| 		ctx.SetServeHeaders(opts)
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| 		ctx.Status(http.StatusOK)
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| 		return
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| 	}
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| 
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| 	s, u, _, err := packages_service.GetPackageBlobStream(ctx, pf, pb)
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| 	if err != nil {
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| 		apiError(ctx, http.StatusInternalServerError, err)
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| 		return
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| 	}
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| 
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| 	opts.Filename = pf.Name
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| 
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| 	helper.ServePackageFile(ctx, s, u, pf, opts)
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| }
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| 
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| // UploadPackageFile adds a file to the package. If the package does not exist, it gets created.
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| func UploadPackageFile(ctx *context.Context) {
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| 	params, err := extractPathParameters(ctx)
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| 	if err != nil {
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| 		apiError(ctx, http.StatusBadRequest, err)
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| 		return
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| 	}
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| 
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| 	log.Trace("Parameters: %+v", params)
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| 
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| 	// Ignore the package index /<name>/maven-metadata.xml
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| 	if params.IsMeta && params.Version == "" {
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| 		ctx.Status(http.StatusOK)
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| 		return
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| 	}
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| 
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| 	packageName := params.GroupID + "-" + params.ArtifactID
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| 
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| 	buf, err := packages_module.CreateHashedBufferFromReader(ctx.Req.Body)
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| 	if err != nil {
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| 		apiError(ctx, http.StatusInternalServerError, err)
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| 		return
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| 	}
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| 	defer buf.Close()
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| 
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| 	pvci := &packages_service.PackageCreationInfo{
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| 		PackageInfo: packages_service.PackageInfo{
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| 			Owner:       ctx.Package.Owner,
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| 			PackageType: packages_model.TypeMaven,
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| 			Name:        packageName,
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| 			Version:     params.Version,
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| 		},
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| 		SemverCompatible: false,
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| 		Creator:          ctx.Doer,
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| 	}
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| 
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| 	ext := filepath.Ext(params.Filename)
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| 
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| 	// Do not upload checksum files but compare the hashes.
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| 	if isChecksumExtension(ext) {
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| 		pv, err := packages_model.GetVersionByNameAndVersion(ctx, pvci.Owner.ID, pvci.PackageType, pvci.Name, pvci.Version)
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| 		if err != nil {
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| 			if err == packages_model.ErrPackageNotExist {
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| 				apiError(ctx, http.StatusNotFound, err)
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| 				return
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| 			}
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| 			apiError(ctx, http.StatusInternalServerError, err)
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| 			return
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| 		}
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| 		pf, err := packages_model.GetFileForVersionByName(ctx, pv.ID, params.Filename[:len(params.Filename)-len(ext)], packages_model.EmptyFileKey)
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| 		if err != nil {
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| 			if err == packages_model.ErrPackageFileNotExist {
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| 				apiError(ctx, http.StatusNotFound, err)
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| 				return
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| 			}
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| 			apiError(ctx, http.StatusInternalServerError, err)
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| 			return
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| 		}
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| 		pb, err := packages_model.GetBlobByID(ctx, pf.BlobID)
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| 		if err != nil {
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| 			apiError(ctx, http.StatusInternalServerError, err)
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| 			return
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| 		}
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| 
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| 		hash, err := io.ReadAll(buf)
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| 		if err != nil {
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| 			apiError(ctx, http.StatusInternalServerError, err)
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| 			return
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| 		}
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| 
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| 		if (ext == extensionMD5 && pb.HashMD5 != string(hash)) ||
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| 			(ext == extensionSHA1 && pb.HashSHA1 != string(hash)) ||
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| 			(ext == extensionSHA256 && pb.HashSHA256 != string(hash)) ||
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| 			(ext == extensionSHA512 && pb.HashSHA512 != string(hash)) {
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| 			apiError(ctx, http.StatusBadRequest, "hash mismatch")
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| 			return
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| 		}
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| 
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| 		ctx.Status(http.StatusOK)
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| 		return
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| 	}
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| 
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| 	pfci := &packages_service.PackageFileCreationInfo{
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| 		PackageFileInfo: packages_service.PackageFileInfo{
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| 			Filename: params.Filename,
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| 		},
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| 		Creator:           ctx.Doer,
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| 		Data:              buf,
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| 		IsLead:            false,
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| 		OverwriteExisting: params.IsMeta,
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| 	}
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| 
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| 	// If it's the package pom file extract the metadata
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| 	if ext == extensionPom {
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| 		pfci.IsLead = true
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| 
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| 		var err error
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| 		pvci.Metadata, err = maven_module.ParsePackageMetaData(buf)
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| 		if err != nil {
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| 			apiError(ctx, http.StatusBadRequest, err)
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| 			return
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| 		}
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| 
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| 		if pvci.Metadata != nil {
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| 			pv, err := packages_model.GetVersionByNameAndVersion(ctx, pvci.Owner.ID, pvci.PackageType, pvci.Name, pvci.Version)
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| 			if err != nil && err != packages_model.ErrPackageNotExist {
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| 				apiError(ctx, http.StatusInternalServerError, err)
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| 				return
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| 			}
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| 			if pv != nil {
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| 				raw, err := json.Marshal(pvci.Metadata)
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| 				if err != nil {
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| 					apiError(ctx, http.StatusInternalServerError, err)
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| 					return
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| 				}
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| 				pv.MetadataJSON = string(raw)
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| 				if err := packages_model.UpdateVersion(ctx, pv); err != nil {
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| 					apiError(ctx, http.StatusInternalServerError, err)
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| 					return
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| 				}
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| 			}
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| 		}
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| 
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| 		if _, err := buf.Seek(0, io.SeekStart); err != nil {
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| 			apiError(ctx, http.StatusInternalServerError, err)
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| 			return
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| 		}
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| 	}
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| 
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| 	_, _, err = packages_service.CreatePackageOrAddFileToExisting(
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| 		pvci,
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| 		pfci,
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| 	)
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| 	if err != nil {
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| 		switch err {
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| 		case packages_model.ErrDuplicatePackageFile:
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| 			apiError(ctx, http.StatusBadRequest, err)
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| 		case packages_service.ErrQuotaTotalCount, packages_service.ErrQuotaTypeSize, packages_service.ErrQuotaTotalSize:
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| 			apiError(ctx, http.StatusForbidden, err)
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| 		default:
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| 			apiError(ctx, http.StatusInternalServerError, err)
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| 		}
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| 		return
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| 	}
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| 
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| 	ctx.Status(http.StatusCreated)
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| }
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| 
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| func isChecksumExtension(ext string) bool {
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| 	return ext == extensionMD5 || ext == extensionSHA1 || ext == extensionSHA256 || ext == extensionSHA512
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| }
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| 
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| type parameters struct {
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| 	GroupID    string
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| 	ArtifactID string
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| 	Version    string
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| 	Filename   string
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| 	IsMeta     bool
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| }
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| 
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| func extractPathParameters(ctx *context.Context) (parameters, error) {
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| 	parts := strings.Split(ctx.Params("*"), "/")
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| 
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| 	p := parameters{
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| 		Filename: parts[len(parts)-1],
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| 	}
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| 
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| 	p.IsMeta = p.Filename == mavenMetadataFile ||
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| 		p.Filename == mavenMetadataFile+extensionMD5 ||
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| 		p.Filename == mavenMetadataFile+extensionSHA1 ||
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| 		p.Filename == mavenMetadataFile+extensionSHA256 ||
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| 		p.Filename == mavenMetadataFile+extensionSHA512
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| 
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| 	parts = parts[:len(parts)-1]
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| 	if len(parts) == 0 {
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| 		return p, errInvalidParameters
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| 	}
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| 
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| 	p.Version = parts[len(parts)-1]
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| 	if p.IsMeta && !strings.HasSuffix(p.Version, "-SNAPSHOT") {
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| 		p.Version = ""
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| 	} else {
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| 		parts = parts[:len(parts)-1]
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| 	}
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| 
 | |
| 	if illegalCharacters.MatchString(p.Version) {
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| 		return p, errInvalidParameters
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| 	}
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| 
 | |
| 	if len(parts) < 2 {
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| 		return p, errInvalidParameters
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| 	}
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| 
 | |
| 	p.ArtifactID = parts[len(parts)-1]
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| 	p.GroupID = strings.Join(parts[:len(parts)-1], ".")
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| 
 | |
| 	if illegalCharacters.MatchString(p.GroupID) || illegalCharacters.MatchString(p.ArtifactID) {
 | |
| 		return p, errInvalidParameters
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| 	}
 | |
| 
 | |
| 	return p, nil
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| }
 |