mirror of
https://github.com/gocsaf/csaf.git
synced 2025-12-22 11:55:40 +01:00
Type messages of a checker topic to avoid code duplication
This commit is contained in:
Sascha L. Teichmann
GitHub
parent
880122315d
commit
3df91fa051
2 changed files with 115 additions and 153 deletions
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@ -34,6 +34,9 @@ import (
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"github.com/csaf-poc/csaf_distribution/util"
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)
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// topicMessages stores the collected topicMessages for a specific topic.
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type topicMessages []string
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type processor struct {
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opts *options
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client *http.Client
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@ -46,14 +49,14 @@ type processor struct {
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pmd interface{}
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keys []*crypto.KeyRing
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badIntegrities []string
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badPGPs []string
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badSignatures []string
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badProviderMetadatas []string
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badSecurities []string
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badIndices []string
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badChanges []string
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badFolders []string
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badIntegrities topicMessages
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badPGPs topicMessages
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badSignatures topicMessages
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badProviderMetadata topicMessages
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badSecurity topicMessages
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badIndices topicMessages
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badChanges topicMessages
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badFolders topicMessages
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expr *util.PathEval
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}
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@ -105,6 +108,24 @@ func (wt whereType) String() string {
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}
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}
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// add adds a message to this topic.
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func (m *topicMessages) add(format string, args ...interface{}) {
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*m = append(*m, fmt.Sprintf(format, args...))
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}
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// use signals that we going to use this topic.
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func (m *topicMessages) use() {
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if *m == nil {
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*m = []string{}
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}
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}
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// reset resets the messages to this topic.
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func (m *topicMessages) reset() { *m = nil }
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// used returns true if we have used this topic.
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func (m *topicMessages) used() bool { return *m != nil }
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// newProcessor returns a processor structure after assigning the given options to the opts attribute
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// and initializing the "alreadyChecked" and "expr" fields.
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func newProcessor(opts *options) *processor {
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@ -127,13 +148,13 @@ func (p *processor) clean() {
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p.pmd = nil
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p.keys = nil
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p.badIntegrities = nil
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p.badPGPs = nil
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p.badSignatures = nil
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p.badProviderMetadatas = nil
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p.badSecurities = nil
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p.badIndices = nil
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p.badChanges = nil
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p.badIntegrities.reset()
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p.badPGPs.reset()
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p.badSignatures.reset()
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p.badProviderMetadata.reset()
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p.badSecurity.reset()
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p.badIndices.reset()
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p.badChanges.reset()
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}
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// run calls checkDomain function for each domain in the given "domains" parameter.
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@ -247,65 +268,6 @@ func (p *processor) httpClient() *http.Client {
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return p.client
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}
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// use checks the given array and initializes an empty array if its nil.
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func use(s *[]string) {
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if *s == nil {
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*s = []string{}
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}
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}
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func used(s []string) bool {
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return s != nil
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}
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// badIntegrity appends a message to the value of "badIntegrity" field of
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// the "processor" struct according to the given format and parameters.
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func (p *processor) badIntegrity(format string, args ...interface{}) {
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p.badIntegrities = append(p.badIntegrities, fmt.Sprintf(format, args...))
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}
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// badSignature appends a message to the value of "badSignature" field of
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// the "processor" struct according to the given format and parameters.
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func (p *processor) badSignature(format string, args ...interface{}) {
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p.badSignatures = append(p.badSignatures, fmt.Sprintf(format, args...))
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}
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// badProviderMetadata appends a message to the value of "badProviderMetadatas" field of
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// the "processor" struct according to the given format and parameters.
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func (p *processor) badProviderMetadata(format string, args ...interface{}) {
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p.badProviderMetadatas = append(p.badProviderMetadatas, fmt.Sprintf(format, args...))
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}
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// badPGP appends a message to the value of "badPGPs" field of
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// the "processor" struct according to the given format and parameters.
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func (p *processor) badPGP(format string, args ...interface{}) {
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p.badPGPs = append(p.badPGPs, fmt.Sprintf(format, args...))
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}
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// badSecurity appends a message to the value of "badSecurity" field of
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// the "processor" struct according to the given format and parameters.
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func (p *processor) badSecurity(format string, args ...interface{}) {
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p.badSecurities = append(p.badSecurities, fmt.Sprintf(format, args...))
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}
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// badIndex appends a message to the value of "badIndices" field of
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// the "processor" struct according to the given format and parameters.
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func (p *processor) badIndex(format string, args ...interface{}) {
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p.badIndices = append(p.badIndices, fmt.Sprintf(format, args...))
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}
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// badChange appends a message to the value of "badChanges" field of
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// the "processor" struct according to the given format and parameters.
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func (p *processor) badChange(format string, args ...interface{}) {
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p.badChanges = append(p.badChanges, fmt.Sprintf(format, args...))
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}
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// badFolder appends a message to the value of "badFolders" field of
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// the "processor" struct according to the given format and parameters.
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func (p *processor) badFolder(format string, args ...interface{}) {
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p.badFolders = append(p.badFolders, fmt.Sprintf(format, args...))
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}
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var yearFromURL = regexp.MustCompile(`.*/(\d{4})/[^/]+$`)
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func (p *processor) integrity(
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@ -370,25 +332,25 @@ func (p *processor) integrity(
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}
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// Check if file is in the right folder.
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use(&p.badFolders)
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p.badFolders.use()
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if date, err := p.expr.Eval(
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`$.document.tracking.initial_release_date`, doc); err != nil {
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p.badFolder(
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p.badFolders.add(
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"Extracting 'initial_release_date' from %s failed: %v", u, err)
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} else if text, ok := date.(string); !ok {
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p.badFolder("'initial_release_date' is not a string in %s", u)
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p.badFolders.add("'initial_release_date' is not a string in %s", u)
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} else if d, err := time.Parse(time.RFC3339, text); err != nil {
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p.badFolder(
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p.badFolders.add(
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"Parsing 'initial_release_date' as RFC3339 failed in %s: %v", u, err)
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} else if m := yearFromURL.FindStringSubmatch(u); m == nil {
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p.badFolder("No year folder found in %s", u)
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p.badFolders.add("No year folder found in %s", u)
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} else if year, _ := strconv.Atoi(m[1]); d.UTC().Year() != year {
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p.badFolder("%s should be in folder %d", u, d.UTC().Year())
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p.badFolders.add("%s should be in folder %d", u, d.UTC().Year())
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}
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// Check hashes
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use(&p.badIntegrities)
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p.badIntegrities.use()
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for _, x := range []struct {
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ext string
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@ -400,11 +362,11 @@ func (p *processor) integrity(
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hashFile := u + "." + x.ext
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p.checkTLS(hashFile)
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if res, err = client.Get(hashFile); err != nil {
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p.badIntegrity("Fetching %s failed: %v.", hashFile, err)
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p.badIntegrities.add("Fetching %s failed: %v.", hashFile, err)
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continue
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}
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if res.StatusCode != http.StatusOK {
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p.badIntegrity("Fetching %s failed: Status code %d (%s)",
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p.badIntegrities.add("Fetching %s failed: Status code %d (%s)",
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hashFile, res.StatusCode, res.Status)
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continue
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}
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@ -413,15 +375,15 @@ func (p *processor) integrity(
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return hashFromReader(res.Body)
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}()
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if err != nil {
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p.badIntegrity("Reading %s failed: %v.", hashFile, err)
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p.badIntegrities.add("Reading %s failed: %v.", hashFile, err)
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continue
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}
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if len(h) == 0 {
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p.badIntegrity("No hash found in %s.", hashFile)
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p.badIntegrities.add("No hash found in %s.", hashFile)
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continue
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}
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if !bytes.Equal(h, x.hash) {
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p.badIntegrity("%s hash of %s does not match %s.",
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p.badIntegrities.add("%s hash of %s does not match %s.",
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strings.ToUpper(x.ext), u, hashFile)
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}
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}
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@ -430,14 +392,14 @@ func (p *processor) integrity(
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sigFile := u + ".asc"
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p.checkTLS(sigFile)
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use(&p.badSignatures)
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p.badSignatures.use()
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if res, err = client.Get(sigFile); err != nil {
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p.badSignature("Fetching %s failed: %v.", sigFile, err)
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p.badSignatures.add("Fetching %s failed: %v.", sigFile, err)
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continue
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}
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if res.StatusCode != http.StatusOK {
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p.badSignature("Fetching %s failed: status code %d (%s)",
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p.badSignatures.add("Fetching %s failed: status code %d (%s)",
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sigFile, res.StatusCode, res.Status)
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continue
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}
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@ -451,7 +413,7 @@ func (p *processor) integrity(
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return crypto.NewPGPSignatureFromArmored(string(all))
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}()
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if err != nil {
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p.badSignature("Loading signature from %s failed: %v.",
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p.badSignatures.add("Loading signature from %s failed: %v.",
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sigFile, err)
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continue
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}
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@ -467,7 +429,7 @@ func (p *processor) integrity(
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}
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}
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if !verified {
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p.badSignature("Signature of %s could not be verified.", u)
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p.badSignatures.add("Signature of %s could not be verified.", u)
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}
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}
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}
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@ -479,11 +441,11 @@ func (p *processor) processROLIEFeed(feed string) error {
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client := p.httpClient()
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res, err := client.Get(feed)
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if err != nil {
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p.badProviderMetadata("Cannot fetch feed %s: %v", feed, err)
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p.badProviderMetadata.add("Cannot fetch feed %s: %v", feed, err)
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return errContinue
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}
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if res.StatusCode != http.StatusOK {
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p.badProviderMetadata("Fetching %s failed. Status code %d (%s)",
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p.badProviderMetadata.add("Fetching %s failed. Status code %d (%s)",
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feed, res.StatusCode, res.Status)
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return errContinue
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}
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@ -492,12 +454,12 @@ func (p *processor) processROLIEFeed(feed string) error {
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return csaf.LoadROLIEFeed(res.Body)
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}()
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if err != nil {
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p.badProviderMetadata("Loading ROLIE feed failed: %v.", err)
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p.badProviderMetadata.add("Loading ROLIE feed failed: %v.", err)
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return errContinue
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}
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base, err := basePath(feed)
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if err != nil {
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p.badProviderMetadata("Bad base path: %v", err)
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p.badProviderMetadata.add("Bad base path: %v", err)
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return errContinue
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}
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@ -509,7 +471,7 @@ func (p *processor) processROLIEFeed(feed string) error {
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}
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}
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if err := p.integrity(files, base, rolieMask, p.badProviderMetadata); err != nil &&
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if err := p.integrity(files, base, rolieMask, p.badProviderMetadata.add); err != nil &&
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err != errContinue {
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return err
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}
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@ -533,17 +495,17 @@ func (p *processor) checkIndex(base string, mask whereType) error {
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index := base + "/index.txt"
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p.checkTLS(index)
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use(&p.badIndices)
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p.badIndices.use()
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res, err := client.Get(index)
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if err != nil {
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p.badIndex("Fetching %s failed: %v", index, err)
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p.badIndices.add("Fetching %s failed: %v", index, err)
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return errContinue
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}
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if res.StatusCode != http.StatusOK {
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// It's optional
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if res.StatusCode != http.StatusNotFound {
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p.badIndex("Fetching %s failed. Status code %d (%s)",
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p.badIndices.add("Fetching %s failed. Status code %d (%s)",
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index, res.StatusCode, res.Status)
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}
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return errContinue
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@ -559,11 +521,11 @@ func (p *processor) checkIndex(base string, mask whereType) error {
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return files, scanner.Err()
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}()
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if err != nil {
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p.badIndex("Reading %s failed: %v", index, err)
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p.badIndices.add("Reading %s failed: %v", index, err)
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return errContinue
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}
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return p.integrity(files, base, mask, p.badIndex)
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return p.integrity(files, base, mask, p.badIndices.add)
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}
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// checkChanges fetches the "changes.csv" and calls the "checkTLS" method for HTTPs checks.
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@ -576,16 +538,16 @@ func (p *processor) checkChanges(base string, mask whereType) error {
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p.checkTLS(changes)
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res, err := client.Get(changes)
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use(&p.badChanges)
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p.badChanges.use()
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if err != nil {
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p.badChange("Fetching %s failed: %v", changes, err)
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p.badChanges.add("Fetching %s failed: %v", changes, err)
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return errContinue
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}
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if res.StatusCode != http.StatusOK {
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if res.StatusCode != http.StatusNotFound {
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// It's optional
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p.badChange("Fetching %s failed. Status code %d (%s)",
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p.badChanges.add("Fetching %s failed. Status code %d (%s)",
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changes, res.StatusCode, res.Status)
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}
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return errContinue
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@ -616,17 +578,17 @@ func (p *processor) checkChanges(base string, mask whereType) error {
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return times, files, nil
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}()
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if err != nil {
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p.badChange("Reading %s failed: %v", changes, err)
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p.badChanges.add("Reading %s failed: %v", changes, err)
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return errContinue
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}
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if !sort.SliceIsSorted(times, func(i, j int) bool {
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return times[j].Before(times[i])
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}) {
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p.badChange("%s is not sorted in descending order", changes)
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p.badChanges.add("%s is not sorted in descending order", changes)
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}
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return p.integrity(files, base, mask, p.badChange)
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return p.integrity(files, base, mask, p.badChanges.add)
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}
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func (p *processor) processROLIEFeeds(domain string, feeds [][]csaf.Feed) error {
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@ -643,7 +605,7 @@ func (p *processor) processROLIEFeeds(domain string, feeds [][]csaf.Feed) error
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}
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up, err := url.Parse(string(*feed.URL))
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if err != nil {
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p.badProviderMetadata("Invalid URL %s in feed: %v.", *feed.URL, err)
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p.badProviderMetadata.add("Invalid URL %s in feed: %v.", *feed.URL, err)
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continue
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}
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feedURL := base.ResolveReference(up).String()
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@ -669,7 +631,7 @@ func (p *processor) checkCSAFs(domain string) error {
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if hasRolie {
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var feeds [][]csaf.Feed
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if err := util.ReMarshalJSON(&feeds, rolie); err != nil {
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p.badProviderMetadata("ROLIE feeds are not compatible: %v.", err)
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p.badProviderMetadata.add("ROLIE feeds are not compatible: %v.", err)
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} else if err := p.processROLIEFeeds(domain, feeds); err != nil {
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if err != errContinue {
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return err
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@ -723,7 +685,7 @@ func (p *processor) checkMissing(string) error {
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where = append(where, in+" "+mask.String())
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}
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}
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p.badIntegrity("%s %s", f, strings.Join(where, ", "))
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p.badIntegrities.add("%s %s", f, strings.Join(where, ", "))
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}
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return nil
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}
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@ -828,12 +790,12 @@ func extractProviderURL(r io.Reader) (string, error) {
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// checkProviderMetadata checks provider-metadata.json. If it exists,
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// decodes, and validates against the JSON schema.
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// According to the result, the respective error messages are passed
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// to the badProviderMetadatas method.
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// According to the result, the respective error messages added to
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// badProviderMetadata.
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// It returns nil if all checks are passed.
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func (p *processor) checkProviderMetadata(domain string) error {
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use(&p.badProviderMetadatas)
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p.badProviderMetadata.use()
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found := func(url string, content io.Reader) error {
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@ -842,7 +804,7 @@ func (p *processor) checkProviderMetadata(domain string) error {
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tee := io.TeeReader(content, hash)
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if err := json.NewDecoder(tee).Decode(&p.pmd); err != nil {
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p.badProviderMetadata("%s: Decoding JSON failed: %v", url, err)
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p.badProviderMetadata.add("%s: Decoding JSON failed: %v", url, err)
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return errContinue
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}
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@ -853,11 +815,11 @@ func (p *processor) checkProviderMetadata(domain string) error {
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return err
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}
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if len(errors) > 0 {
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p.badProviderMetadata("%s: Validating against JSON schema failed:", url)
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p.badProviderMetadata.add("%s: Validating against JSON schema failed:", url)
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for _, msg := range errors {
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p.badProviderMetadata(strings.ReplaceAll(msg, `%`, `%%`))
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p.badProviderMetadata.add(strings.ReplaceAll(msg, `%`, `%%`))
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}
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p.badProviderMetadata("STOPPING here - cannot perform other checks.")
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p.badProviderMetadata.add("STOPPING here - cannot perform other checks.")
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return errStop
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}
|
||||
p.pmdURL = url
|
||||
|
|
@ -869,8 +831,8 @@ func (p *processor) checkProviderMetadata(domain string) error {
|
|||
}
|
||||
|
||||
if p.pmdURL == "" {
|
||||
p.badProviderMetadata("No provider-metadata.json found.")
|
||||
p.badProviderMetadata("STOPPING here - cannot perform other checks.")
|
||||
p.badProviderMetadata.add("No provider-metadata.json found.")
|
||||
p.badProviderMetadata.add("STOPPING here - cannot perform other checks.")
|
||||
return errStop
|
||||
}
|
||||
return nil
|
||||
|
|
@ -885,17 +847,17 @@ func (p *processor) checkSecurity(domain string) error {
|
|||
|
||||
client := p.httpClient()
|
||||
|
||||
use(&p.badSecurities)
|
||||
p.badSecurity.use()
|
||||
|
||||
path := "https://" + domain + "/.well-known/security.txt"
|
||||
res, err := client.Get(path)
|
||||
if err != nil {
|
||||
p.badSecurity("Fetching %s failed: %v", path, err)
|
||||
p.badSecurity.add("Fetching %s failed: %v", path, err)
|
||||
return errContinue
|
||||
}
|
||||
|
||||
if res.StatusCode != http.StatusOK {
|
||||
p.badSecurity("Fetching %s failed. Status code %d (%s)",
|
||||
p.badSecurity.add("Fetching %s failed. Status code %d (%s)",
|
||||
path, res.StatusCode, res.Status)
|
||||
return errContinue
|
||||
}
|
||||
|
|
@ -912,18 +874,18 @@ func (p *processor) checkSecurity(domain string) error {
|
|||
return "", lines.Err()
|
||||
}()
|
||||
if err != nil {
|
||||
p.badSecurity("Error while reading security.txt: %v", err)
|
||||
p.badSecurity.add("Error while reading security.txt: %v", err)
|
||||
return errContinue
|
||||
}
|
||||
if u == "" {
|
||||
p.badSecurity("No CSAF line found in security.txt.")
|
||||
p.badSecurity.add("No CSAF line found in security.txt.")
|
||||
return errContinue
|
||||
}
|
||||
|
||||
// Try to load
|
||||
up, err := url.Parse(u)
|
||||
if err != nil {
|
||||
p.badSecurity("CSAF URL '%s' invalid: %v", u, err)
|
||||
p.badSecurity.add("CSAF URL '%s' invalid: %v", u, err)
|
||||
return errContinue
|
||||
}
|
||||
|
||||
|
|
@ -935,11 +897,11 @@ func (p *processor) checkSecurity(domain string) error {
|
|||
u = base.ResolveReference(up).String()
|
||||
p.checkTLS(u)
|
||||
if res, err = client.Get(u); err != nil {
|
||||
p.badSecurity("Cannot fetch %s from security.txt: %v", u, err)
|
||||
p.badSecurity.add("Cannot fetch %s from security.txt: %v", u, err)
|
||||
return errContinue
|
||||
}
|
||||
if res.StatusCode != http.StatusOK {
|
||||
p.badSecurity("Fetching %s failed. Status code %d (%s)",
|
||||
p.badSecurity.add("Fetching %s failed. Status code %d (%s)",
|
||||
u, res.StatusCode, res.Status)
|
||||
return errContinue
|
||||
}
|
||||
|
|
@ -947,12 +909,12 @@ func (p *processor) checkSecurity(domain string) error {
|
|||
// Compare checksums to already read provider-metadata.json.
|
||||
h := sha256.New()
|
||||
if _, err := io.Copy(h, res.Body); err != nil {
|
||||
p.badSecurity("Reading %s failed: %v", u, err)
|
||||
p.badSecurity.add("Reading %s failed: %v", u, err)
|
||||
return errContinue
|
||||
}
|
||||
|
||||
if !bytes.Equal(h.Sum(nil), p.pmd256) {
|
||||
p.badSecurity("Content of %s from security.txt is not "+
|
||||
p.badSecurity.add("Content of %s from security.txt is not "+
|
||||
"identical to .well-known/csaf/provider-metadata.json", u)
|
||||
}
|
||||
|
||||
|
|
@ -965,22 +927,22 @@ func (p *processor) checkSecurity(domain string) error {
|
|||
// in case of errors. It returns nil if all checks are passed.
|
||||
func (p *processor) checkPGPKeys(domain string) error {
|
||||
|
||||
use(&p.badPGPs)
|
||||
p.badPGPs.use()
|
||||
|
||||
src, err := p.expr.Eval("$.pgp_keys", p.pmd)
|
||||
if err != nil {
|
||||
p.badPGP("No public OpenPGP keys found: %v.", err)
|
||||
p.badPGPs.add("No public OpenPGP keys found: %v.", err)
|
||||
return errContinue
|
||||
}
|
||||
|
||||
var keys []csaf.PGPKey
|
||||
if err := util.ReMarshalJSON(&keys, src); err != nil {
|
||||
p.badPGP("Invalid public OpenPGP keys: %v.", err)
|
||||
p.badPGPs.add("Invalid public OpenPGP keys: %v.", err)
|
||||
return errContinue
|
||||
}
|
||||
|
||||
if len(keys) == 0 {
|
||||
p.badPGP("No public OpenPGP keys found.")
|
||||
p.badPGPs.add("No public OpenPGP keys found.")
|
||||
return errContinue
|
||||
}
|
||||
|
||||
|
|
@ -996,12 +958,12 @@ func (p *processor) checkPGPKeys(domain string) error {
|
|||
for i := range keys {
|
||||
key := &keys[i]
|
||||
if key.URL == nil {
|
||||
p.badPGP("Missing URL for fingerprint %x.", key.Fingerprint)
|
||||
p.badPGPs.add("Missing URL for fingerprint %x.", key.Fingerprint)
|
||||
continue
|
||||
}
|
||||
up, err := url.Parse(*key.URL)
|
||||
if err != nil {
|
||||
p.badPGP("Invalid URL '%s': %v", *key.URL, err)
|
||||
p.badPGPs.add("Invalid URL '%s': %v", *key.URL, err)
|
||||
continue
|
||||
}
|
||||
|
||||
|
|
@ -1010,11 +972,11 @@ func (p *processor) checkPGPKeys(domain string) error {
|
|||
|
||||
res, err := client.Get(u)
|
||||
if err != nil {
|
||||
p.badPGP("Fetching public OpenPGP key %s failed: %v.", u, err)
|
||||
p.badPGPs.add("Fetching public OpenPGP key %s failed: %v.", u, err)
|
||||
continue
|
||||
}
|
||||
if res.StatusCode != http.StatusOK {
|
||||
p.badPGP("Fetching public OpenPGP key %s status code: %d (%s)",
|
||||
p.badPGPs.add("Fetching public OpenPGP key %s status code: %d (%s)",
|
||||
u, res.StatusCode, res.Status)
|
||||
continue
|
||||
}
|
||||
|
|
@ -1025,24 +987,24 @@ func (p *processor) checkPGPKeys(domain string) error {
|
|||
}()
|
||||
|
||||
if err != nil {
|
||||
p.badPGP("Reading public OpenPGP key %s failed: %v", u, err)
|
||||
p.badPGPs.add("Reading public OpenPGP key %s failed: %v", u, err)
|
||||
continue
|
||||
}
|
||||
|
||||
if ckey.GetFingerprint() != string(key.Fingerprint) {
|
||||
p.badPGP("Fingerprint of public OpenPGP key %s does not match remotely loaded.", u)
|
||||
p.badPGPs.add("Fingerprint of public OpenPGP key %s does not match remotely loaded.", u)
|
||||
continue
|
||||
}
|
||||
keyring, err := crypto.NewKeyRing(ckey)
|
||||
if err != nil {
|
||||
p.badPGP("Creating store for public OpenPGP key %s failed: %v.", u, err)
|
||||
p.badPGPs.add("Creating store for public OpenPGP key %s failed: %v.", u, err)
|
||||
continue
|
||||
}
|
||||
p.keys = append(p.keys, keyring)
|
||||
}
|
||||
|
||||
if len(p.keys) == 0 {
|
||||
p.badPGP("No OpenPGP keys loaded.")
|
||||
p.badPGPs.add("No OpenPGP keys loaded.")
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue