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moby--moby/daemon/search.go

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package daemon
import (
"fmt"
"strconv"
"golang.org/x/net/context"
"github.com/docker/docker/dockerversion"
"github.com/docker/engine-api/types"
"github.com/docker/engine-api/types/filters"
registrytypes "github.com/docker/engine-api/types/registry"
)
var acceptedSearchFilterTags = map[string]bool{
"is-automated": true,
"is-official": true,
"stars": true,
}
// SearchRegistryForImages queries the registry for images matching
// term. authConfig is used to login.
func (daemon *Daemon) SearchRegistryForImages(ctx context.Context, filtersArgs string, term string, limit int,
authConfig *types.AuthConfig,
headers map[string][]string) (*registrytypes.SearchResults, error) {
searchFilters, err := filters.FromParam(filtersArgs)
if err != nil {
return nil, err
}
if err := searchFilters.Validate(acceptedSearchFilterTags); err != nil {
return nil, err
}
var isAutomated, isOfficial bool
var hasStarFilter = 0
if searchFilters.Include("is-automated") {
if searchFilters.UniqueExactMatch("is-automated", "true") {
isAutomated = true
} else if !searchFilters.UniqueExactMatch("is-automated", "false") {
return nil, fmt.Errorf("Invalid filter 'is-automated=%s'", searchFilters.Get("is-automated"))
}
}
if searchFilters.Include("is-official") {
if searchFilters.UniqueExactMatch("is-official", "true") {
isOfficial = true
} else if !searchFilters.UniqueExactMatch("is-official", "false") {
return nil, fmt.Errorf("Invalid filter 'is-official=%s'", searchFilters.Get("is-official"))
}
}
if searchFilters.Include("stars") {
hasStars := searchFilters.Get("stars")
for _, hasStar := range hasStars {
iHasStar, err := strconv.Atoi(hasStar)
if err != nil {
return nil, fmt.Errorf("Invalid filter 'stars=%s'", hasStar)
}
if iHasStar > hasStarFilter {
hasStarFilter = iHasStar
}
}
}
unfilteredResult, err := daemon.RegistryService.Search(ctx, term, limit, authConfig, dockerversion.DockerUserAgent(ctx), headers)
if err != nil {
return nil, err
}
filteredResults := []registrytypes.SearchResult{}
for _, result := range unfilteredResult.Results {
if searchFilters.Include("is-automated") {
if isAutomated != result.IsAutomated {
continue
}
}
if searchFilters.Include("is-official") {
if isOfficial != result.IsOfficial {
continue
}
}
if searchFilters.Include("stars") {
if result.StarCount < hasStarFilter {
continue
}
}
filteredResults = append(filteredResults, result)
}
return &registrytypes.SearchResults{
Query: unfilteredResult.Query,
NumResults: len(filteredResults),
Results: filteredResults,
}, nil
}