d5c7870826
* csConfig.Cscli is always loaded now, configuration paths too * Remove global/singleton hub instance
123 lines
2.8 KiB
Go
123 lines
2.8 KiB
Go
package cwhub
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import (
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"encoding/json"
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"fmt"
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"os"
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"strings"
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log "github.com/sirupsen/logrus"
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"github.com/crowdsecurity/crowdsec/pkg/csconfig"
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)
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type Hub struct {
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Items HubItems
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local *csconfig.LocalHubCfg
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remote *RemoteHubCfg
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skippedLocal int
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skippedTainted int
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Warnings []string
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}
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func (h *Hub) GetDataDir() string {
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return h.local.InstallDataDir
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}
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// NewHub returns a new Hub instance with local and (optionally) remote configuration, and syncs the local state
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// It also downloads the index if downloadIndex is true
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func NewHub(local *csconfig.LocalHubCfg, remote *RemoteHubCfg, downloadIndex bool) (*Hub, error) {
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if local == nil {
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return nil, fmt.Errorf("no hub configuration found")
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}
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if downloadIndex {
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if err := remote.downloadIndex(local.HubIndexFile); err != nil {
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return nil, err
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}
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}
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log.Debugf("loading hub idx %s", local.HubIndexFile)
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hub := &Hub{
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local: local,
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remote: remote,
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}
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if err := hub.parseIndex(); err != nil {
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return nil, fmt.Errorf("failed to load index: %w", err)
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}
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if err := hub.localSync(); err != nil {
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return nil, fmt.Errorf("failed to sync items: %w", err)
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}
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return hub, nil
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}
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// parseIndex takes the content of an index file and fills the map of associated parsers/scenarios/collections
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func (h *Hub) parseIndex() error {
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bidx, err := os.ReadFile(h.local.HubIndexFile)
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if err != nil {
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return fmt.Errorf("unable to read index file: %w", err)
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}
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if err := json.Unmarshal(bidx, &h.Items); err != nil {
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return fmt.Errorf("failed to unmarshal index: %w", err)
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}
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log.Debugf("%d item types in hub index", len(ItemTypes))
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// Iterate over the different types to complete the struct
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for _, itemType := range ItemTypes {
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log.Tracef("%s: %d items", itemType, len(h.Items[itemType]))
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for name, item := range h.Items[itemType] {
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item.hub = h
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item.Name = name
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// if the item has no (redundant) author, take it from the json key
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if item.Author == "" && strings.Contains(name, "/") {
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item.Author = strings.Split(name, "/")[0]
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}
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item.Type = itemType
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x := strings.Split(item.RemotePath, "/")
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item.FileName = x[len(x)-1]
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item.logMissingSubItems()
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}
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}
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return nil
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}
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// ItemStats returns total counts of the hub items
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func (h *Hub) ItemStats() []string {
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loaded := ""
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for _, itemType := range ItemTypes {
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if len(h.Items[itemType]) == 0 {
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continue
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}
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loaded += fmt.Sprintf("%d %s, ", len(h.Items[itemType]), itemType)
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}
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loaded = strings.Trim(loaded, ", ")
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if loaded == "" {
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// empty hub
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loaded = "0 items"
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}
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ret := []string{
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fmt.Sprintf("Loaded: %s", loaded),
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}
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if h.skippedLocal > 0 || h.skippedTainted > 0 {
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ret = append(ret, fmt.Sprintf("Unmanaged items: %d local, %d tainted", h.skippedLocal, h.skippedTainted))
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}
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return ret
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}
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