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Confine indexes to their location

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This commit is contained in:
Daniel 2020-11-24 16:10:51 +01:00
parent 08fda000bb
commit 30e2f19b94
1 changed files with 25 additions and 6 deletions
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31
updater/updating.go
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@ -6,7 +6,9 @@ import (
"fmt"
"io/ioutil"
"net/http"
"path"
"path/filepath"
"strings"
"github.com/safing/portbase/utils"
@ -45,31 +47,48 @@ func (reg *ResourceRegistry) downloadIndex(ctx context.Context, client *http.Cli
}
// parse
new := make(map[string]string)
err = json.Unmarshal(data, &new)
newIndexData := make(map[string]string)
err = json.Unmarshal(data, &newIndexData)
if err != nil {
return fmt.Errorf("failed to parse index %s: %w", idx.Path, err)
}
// check for content
if len(new) == 0 {
if len(newIndexData) == 0 {
return fmt.Errorf("index %s is empty", idx.Path)
}
// Check if all resources are within the indexes' authority.
authoritativePath := path.Dir(idx.Path) + "/"
if authoritativePath == "./" {
// Fix path for indexes at the storage root.
authoritativePath = ""
}
cleanedData := make(map[string]string, len(newIndexData))
for key, version := range newIndexData {
if strings.HasPrefix(key, authoritativePath) {
cleanedData[key] = version
} else {
log.Warningf("%s: index %s oversteps it's authority by defining version for %s", reg.Name, idx.Path, key)
}
}
// add resources to registry
err = reg.AddResources(new, false, idx.Stable, idx.Beta)
err = reg.AddResources(cleanedData, false, idx.Stable, idx.Beta)
if err != nil {
log.Warningf("%s: failed to add resources: %s", reg.Name, err)
}
// check if dest dir exists
err = reg.storageDir.EnsureRelPath(filepath.Dir(idx.Path))
indexDir := filepath.FromSlash(path.Dir(idx.Path))
err = reg.storageDir.EnsureRelPath(indexDir)
if err != nil {
log.Warningf("%s: failed to ensure directory for updated index %s: %s", reg.Name, idx.Path, err)
}
// save index
err = ioutil.WriteFile(filepath.Join(reg.storageDir.Path, idx.Path), data, 0644)
indexPath := filepath.FromSlash(idx.Path)
err = ioutil.WriteFile(filepath.Join(reg.storageDir.Path, indexPath), data, 0644)
if err != nil {
log.Warningf("%s: failed to save updated index %s: %s", reg.Name, idx.Path, err)
}