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rpms.go
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rpms.go
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package dao
import (
"fmt"
"strings"
"github.com/content-services/content-sources-backend/pkg/api"
"github.com/content-services/content-sources-backend/pkg/models"
"github.com/content-services/yummy/pkg/yum"
"github.com/openlyinc/pointy"
"gorm.io/gorm"
"gorm.io/gorm/clause"
)
type rpmDaoImpl struct {
db *gorm.DB
}
func GetRpmDao(db *gorm.DB) RpmDao {
// Return DAO instance
return rpmDaoImpl{
db: db,
}
}
func (r rpmDaoImpl) isOwnedRepository(orgID string, repositoryConfigUUID string) (bool, error) {
var repoConfigs []models.RepositoryConfiguration
var count int64
if err := r.db.
Where("org_id = ? and uuid = ?", orgID, repositoryConfigUUID).
Find(&repoConfigs).
Count(&count).
Error; err != nil {
return false, err
}
if count == 0 {
return false, nil
}
return true, nil
}
func (r rpmDaoImpl) List(orgID string, repositoryConfigUUID string, limit int, offset int, search string, sortBy string) (api.RepositoryRpmCollectionResponse, int64, error) {
// Check arguments
if orgID == "" {
return api.RepositoryRpmCollectionResponse{}, 0, fmt.Errorf("orgID can not be an empty string")
}
var totalRpms int64
repoRpms := []models.Rpm{}
if ok, err := r.isOwnedRepository(orgID, repositoryConfigUUID); !ok {
if err != nil {
return api.RepositoryRpmCollectionResponse{},
totalRpms,
DBErrorToApi(err)
}
return api.RepositoryRpmCollectionResponse{},
totalRpms,
fmt.Errorf("repositoryConfigUUID = %s is not owned", repositoryConfigUUID)
}
repositoryConfig := models.RepositoryConfiguration{}
// Select Repository from RepositoryConfig
if err := r.db.
Preload("Repository").
Find(&repositoryConfig, "uuid = ?", repositoryConfigUUID).
Error; err != nil {
return api.RepositoryRpmCollectionResponse{}, totalRpms, err
}
filteredDB := r.db.Model(&repoRpms).Joins(strings.Join([]string{"inner join", models.TableNameRpmsRepositories, "on uuid = rpm_uuid"}, " ")).
Where("repository_uuid = ?", repositoryConfig.Repository.UUID)
if search != "" {
containsSearch := "%" + search + "%"
filteredDB = filteredDB.
Where("name LIKE ?", containsSearch)
}
sortMap := map[string]string{
"name": "name",
"release": "release",
"version": "version",
"arch": "arch",
}
order := convertSortByToSQL(sortBy, sortMap)
filteredDB = filteredDB.
Order(order).
Count(&totalRpms).
Offset(offset).
Limit(limit).
Find(&repoRpms)
if filteredDB.Error != nil {
return api.RepositoryRpmCollectionResponse{}, totalRpms, filteredDB.Error
}
// Return the rpm list
repoRpmResponse := r.RepositoryRpmListFromModelToResponse(repoRpms)
return api.RepositoryRpmCollectionResponse{
Data: repoRpmResponse,
Meta: api.ResponseMetadata{
Count: totalRpms,
Offset: offset,
Limit: limit,
},
}, totalRpms, nil
}
func (r rpmDaoImpl) RepositoryRpmListFromModelToResponse(repoRpm []models.Rpm) []api.RepositoryRpm {
repos := make([]api.RepositoryRpm, len(repoRpm))
for i := 0; i < len(repoRpm); i++ {
r.modelToApiFields(&repoRpm[i], &repos[i])
}
return repos
}
// apiFieldsToModel transform from database model to API request.
// in the source models.Rpm structure.
// out the output api.RepositoryRpm structure.
//
// NOTE: This encapsulate transformation into rpmDaoImpl implementation
// as the methods are not used outside; if they were used
// out of this place, decouple into a new struct and make
// he methods publics.
func (r rpmDaoImpl) modelToApiFields(in *models.Rpm, out *api.RepositoryRpm) {
if in == nil || out == nil {
return
}
out.UUID = in.Base.UUID
out.Name = in.Name
out.Arch = in.Arch
out.Version = in.Version
out.Release = in.Release
out.Epoch = in.Epoch
out.Summary = in.Summary
out.Checksum = in.Checksum
}
func (r rpmDaoImpl) Search(orgID string, request api.SearchRpmRequest) ([]api.SearchRpmResponse, error) {
// Retrieve the repository id list
if orgID == "" {
return nil, fmt.Errorf("orgID can not be an empty string")
}
if len(request.URLs) == 0 && len(request.UUIDs) == 0 {
return nil, fmt.Errorf("must contain at least 1 URL or 1 UUID")
}
if request.Limit == nil {
request.Limit = pointy.Int(api.SearchRpmRequestLimitDefault)
}
if *request.Limit > api.SearchRpmRequestLimitMaximum {
request.Limit = pointy.Int(api.SearchRpmRequestLimitMaximum)
}
// FIXME 103 Once the URL stored in the database does not allow
// "/" tail characters, this could be removed
urls := make([]string, len(request.URLs)*2)
for i, url := range request.URLs {
urls[i*2] = url
urls[i*2+1] = url + "/"
}
uuids := request.UUIDs
// This implement the following SELECT statement:
//
// SELECT DISTINCT ON (rpms.name)
// rpms.name, rpms.summary
// FROM rpms
// inner join repositories_rpms on repositories_rpms.rpm_uuid = rpms.uuid
// inner join repositories on repositories.uuid = repositories_rpms.repository_uuid
// left join repository_configurations on repository_configurations.repository_uuid = repositories.uuid
// WHERE (repository_configurations.org_id = 'acme' OR repositories.public)
// AND ( repositories.url in (...)
// OR repository_configurations.uuid in (...)
// )
// AND rpms.name LIKE 'demo%'
// ORDER BY rpms.name, rpms.epoch DESC
// LIMIT 20;
// https://github.com/go-gorm/gorm/issues/5318
dataResponse := []api.SearchRpmResponse{}
orGroupPublicOrPrivate := r.db.Where("repository_configurations.org_id = ?", orgID).Or("repositories.public")
db := r.db.
Select("DISTINCT ON(rpms.name) rpms.name as package_name", "rpms.summary").
Table(models.TableNameRpm).
Joins("inner join repositories_rpms on repositories_rpms.rpm_uuid = rpms.uuid").
Joins("inner join repositories on repositories.uuid = repositories_rpms.repository_uuid").
Joins("left join repository_configurations on repository_configurations.repository_uuid = repositories.uuid").
Where(orGroupPublicOrPrivate).
Where("rpms.name ILIKE ?", fmt.Sprintf("%%%s%%", request.Search)).
Where(r.db.Where("repositories.url in ?", urls).
Or("repository_configurations.uuid in ?", uuids)).
Order("rpms.name ASC").
Limit(*request.Limit).
Scan(&dataResponse)
if db.Error != nil {
return nil, db.Error
}
return dataResponse, nil
}
func (r rpmDaoImpl) fetchRepo(uuid string) (models.Repository, error) {
found := models.Repository{}
if err := r.db.
Where("UUID = ?", uuid).
First(&found).
Error; err != nil {
return found, err
}
return found, nil
}
// InsertForRepository inserts a set of yum packages for a given repository
// and removes any that are not in the list. This will involve inserting the RPMs
// if not present, and adding or removing any associations to the Repository
// Returns a count of new RPMs added to the system (not the repo), as well as any error
func (r rpmDaoImpl) InsertForRepository(repoUuid string, pkgs []yum.Package) (int64, error) {
var (
err error
repo models.Repository
existingChecksums []string
)
// Retrieve Repository record
if repo, err = r.fetchRepo(repoUuid); err != nil {
return 0, fmt.Errorf("failed to fetchRepo: %w", err)
}
// Build the list of checksums from the provided packages
checksums := make([]string, len(pkgs))
for i := 0; i < len(pkgs); i++ {
checksums[i] = pkgs[i].Checksum.Value
}
// Given the list of checksums, retrieve the list of the ones that exists
// in the 'rpm' table (whatever is the repository that it could belong)
if err = r.db.
Where("checksum in (?)", checksums).
Model(&models.Rpm{}).
Pluck("checksum", &existingChecksums).Error; err != nil {
return 0, fmt.Errorf("failed retrieving existing checksum in rpms: %w", err)
}
// Given a slice of yum.Package, it filters the ones which checksum exists
// in existingChecksums and return a slice of models.Rpm
dbPkgs := FilteredConvert(pkgs, existingChecksums)
// Insert the filtered packages in rpms table
result := r.db.Clauses(clause.OnConflict{
Columns: []clause.Column{{Name: "checksum"}},
DoNothing: true,
}).Create(dbPkgs)
if result.Error != nil {
return 0, fmt.Errorf("failed to PagedRpmInsert: %w", err)
}
// Now fetch the uuids of all the rpms we want associated to the repository
var rpmUuids []string
if err = r.db.
Where("checksum in (?)", checksums).
Model(&models.Rpm{}).
Pluck("uuid", &rpmUuids).Error; err != nil {
return 0, fmt.Errorf("failed retrieving rpms.uuid for the package checksums: %w", err)
}
// Delete Rpm and RepositoryRpm entries we don't need
if err = r.deleteUnneeded(repo, rpmUuids); err != nil {
return 0, fmt.Errorf("failed to deleteUnneeded: %w", err)
}
// Add the RepositoryRpm entries we do need
associations := prepRepositoryRpms(repo, rpmUuids)
result = r.db.Clauses(clause.OnConflict{
Columns: []clause.Column{{Name: "repository_uuid"}, {Name: "rpm_uuid"}},
DoNothing: true}).
Create(&associations)
if result.Error != nil {
return result.RowsAffected, fmt.Errorf("failed to Create: %w", result.Error)
}
return result.RowsAffected, err
}
// prepRepositoryRpms converts a list of rpm_uuids to a list of RepositoryRpm Objects
func prepRepositoryRpms(repo models.Repository, rpm_uuids []string) []models.RepositoryRpm {
repoRpms := make([]models.RepositoryRpm, len(rpm_uuids))
for i := 0; i < len(rpm_uuids); i++ {
repoRpms[i].RepositoryUUID = repo.UUID
repoRpms[i].RpmUUID = rpm_uuids[i]
}
return repoRpms
}
// difference returns the difference between arrays a and b (a - b)
func difference(a, b []string) []string {
mb := make(map[string]struct{}, len(b))
for _, x := range b {
mb[x] = struct{}{}
}
var diff []string
for _, x := range a {
if _, found := mb[x]; !found {
diff = append(diff, x)
}
}
return diff
}
// deleteUnneeded Removes any RepositoryRpm entries that are not in the list of rpm_uuids
func (r rpmDaoImpl) deleteUnneeded(repo models.Repository, rpm_uuids []string) error {
// First get uuids that are there:
var (
existing_rpm_uuids []string
)
// Read existing rpm_uuid associated to repository_uuid
if err := r.db.Model(&models.RepositoryRpm{}).
Where("repository_uuid = ?", repo.UUID).
Pluck("rpm_uuid", &existing_rpm_uuids).
Error; err != nil {
return err
}
rpmsToDelete := difference(existing_rpm_uuids, rpm_uuids)
// Delete the many2many relationship for the unneeded rpms
if err := r.db.
Unscoped().
Where("repositories_rpms.repository_uuid = ?", repo.UUID).
Where("repositories_rpms.rpm_uuid in (?)", rpmsToDelete).
Delete(&models.RepositoryRpm{}).
Error; err != nil {
return err
}
return nil
}
func (r rpmDaoImpl) OrphanCleanup() error {
var danglingRpmUuids []string
// Retrieve dangling rpms.uuid
if err := r.db.
Model(&models.Rpm{}).
Where("repositories_rpms.rpm_uuid is NULL").
Joins("left join repositories_rpms on rpms.uuid = repositories_rpms.rpm_uuid").
Pluck("rpms.uuid", &danglingRpmUuids).
Error; err != nil {
return err
}
if len(danglingRpmUuids) == 0 {
return nil
}
// Remove dangling rpms
if err := r.db.
Where("rpms.uuid in (?)", danglingRpmUuids).
Delete(&models.Rpm{}).
Error; err != nil {
return err
}
return nil
}
func stringInSlice(a string, list []string) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
// FilteredConvert Given a list of yum.Package objects, it converts them to model.Rpm packages
// while filtering out any checksums that are in the excludedChecksums parameter
func FilteredConvert(yumPkgs []yum.Package, excludeChecksums []string) []models.Rpm {
var dbPkgs []models.Rpm
for _, yumPkg := range yumPkgs {
if !stringInSlice(yumPkg.Checksum.Value, excludeChecksums) {
epoch := yumPkg.Version.Epoch
dbPkgs = append(dbPkgs, models.Rpm{
Name: yumPkg.Name,
Arch: yumPkg.Arch,
Version: yumPkg.Version.Version,
Release: yumPkg.Version.Release,
Epoch: epoch,
Checksum: yumPkg.Checksum.Value,
Summary: yumPkg.Summary,
})
}
}
return dbPkgs
}