Ejemplo n.º 1
0
// parseIdentifiersList parses a (possibly empty) list of
// of comma separated (possibly empty) identifiers
func (p *Parser) parseIdentifiersList() (util.StringSet, error) {
	s := util.NewStringSet()
	for {
		tok, lit := p.consume(Values)
		switch tok {
		case IdentifierToken:
			s.Insert(lit)
			tok2, lit2 := p.lookahead(Values)
			switch tok2 {
			case CommaToken:
				continue
			case ClosedParToken:
				return s, nil
			default:
				return nil, fmt.Errorf("found '%s', expected: ',' or ')'", lit2)
			}
		case CommaToken: // handled here since we can have "(,"
			if s.Len() == 0 {
				s.Insert("") // to handle (,
			}
			tok2, _ := p.lookahead(Values)
			if tok2 == ClosedParToken {
				s.Insert("") // to handle ,)  Double "" removed by StringSet
				return s, nil
			}
			if tok2 == CommaToken {
				p.consume(Values)
				s.Insert("") // to handle ,, Double "" removed by StringSet
			}
		default: // it can be operator
			return s, fmt.Errorf("found '%s', expected: ',', or identifier", lit)
		}
	}
}
Ejemplo n.º 2
0
func init() {
	// Use the first API version in the list of registered versions as the latest.
	Version = registered.RegisteredVersions[0]
	OldestVersion = registered.RegisteredVersions[len(registered.RegisteredVersions)-1]
	Codec = runtime.CodecFor(api.Scheme, Version)
	// Put the registered versions in Versions in reverse order.
	versions := registered.RegisteredVersions
	Versions = []string{}
	for i := len(versions) - 1; i >= 0; i-- {
		Versions = append(Versions, versions[i])
	}

	mapper := meta.NewDefaultRESTMapper(
		versions,
		func(version string) (*meta.VersionInterfaces, bool) {
			interfaces, err := InterfacesFor(version)
			if err != nil {
				return nil, false
			}
			return interfaces, true
		},
	)

	// the list of kinds that are scoped at the root of the api hierarchy
	// if a kind is not enumerated here, it is assumed to have a namespace scope
	kindToRootScope := map[string]bool{
		"Node":             true,
		"Minion":           true,
		"Namespace":        true,
		"PersistentVolume": true,
	}

	// setup aliases for groups of resources
	mapper.AddResourceAlias("all", userResources...)

	// these kinds should be excluded from the list of resources
	ignoredKinds := util.NewStringSet(
		"ListOptions",
		"DeleteOptions",
		"Status",
		"PodLogOptions",
		"PodExecOptions",
		"PodProxyOptions")

	// enumerate all supported versions, get the kinds, and register with the mapper how to address our resources.
	for _, version := range versions {
		for kind := range api.Scheme.KnownTypes(version) {
			if ignoredKinds.Has(kind) {
				continue
			}
			scope := meta.RESTScopeNamespace
			if kindToRootScope[kind] {
				scope = meta.RESTScopeRoot
			}
			mapper.Add(scope, kind, version, false)
		}
	}
	RESTMapper = mapper
}
Ejemplo n.º 3
0
// parseExactValue parses the only value for exact match style
func (p *Parser) parseExactValue() (util.StringSet, error) {
	s := util.NewStringSet()
	tok, lit := p.consume(Values)
	if tok == IdentifierToken {
		s.Insert(lit)
		return s, nil
	}
	return nil, fmt.Errorf("found '%s', expected: identifier", lit)
}
Ejemplo n.º 4
0
// Add adds a requirement to the selector. It copies the current selector returning a new one
func (lsel LabelSelector) Add(key string, operator Operator, values []string) Selector {
	var reqs []Requirement
	for _, item := range lsel {
		reqs = append(reqs, item)
	}
	if r, err := NewRequirement(key, operator, util.NewStringSet(values...)); err == nil {
		reqs = append(reqs, *r)
	}
	return LabelSelector(reqs)
}
Ejemplo n.º 5
0
// Executes the rule check without using the "-C" flag, instead parsing iptables-save.
// Present for compatibility with <1.4.11 versions of iptables.  This is full
// of hack and half-measures.  We should nix this ASAP.
func (runner *runner) checkRuleWithoutCheck(table Table, chain Chain, args ...string) (bool, error) {
	glog.V(1).Infof("running iptables-save -t %s", string(table))
	out, err := runner.exec.Command("iptables-save", "-t", string(table)).CombinedOutput()
	if err != nil {
		return false, fmt.Errorf("error checking rule: %v", err)
	}

	// Sadly, iptables has inconsistent quoting rules for comments.
	// Just unquote any arg that is wrapped in quotes.
	argsCopy := make([]string, len(args))
	copy(argsCopy, args)
	for i := range argsCopy {
		unquote(&argsCopy[i])
	}
	argset := util.NewStringSet(argsCopy...)

	for _, line := range strings.Split(string(out), "\n") {
		var fields = strings.Fields(line)

		// Check that this is a rule for the correct chain, and that it has
		// the correct number of argument (+2 for "-A <chain name>")
		if !strings.HasPrefix(line, fmt.Sprintf("-A %s", string(chain))) || len(fields) != len(args)+2 {
			continue
		}

		// Sadly, iptables has inconsistent quoting rules for comments.
		// Just unquote any arg that is wrapped in quotes.
		for i := range fields {
			unquote(&fields[i])
		}

		// TODO: This misses reorderings e.g. "-x foo ! -y bar" will match "! -x foo -y bar"
		if util.NewStringSet(fields...).IsSuperset(argset) {
			return true, nil
		}
		glog.V(5).Infof("DBG: fields is not a superset of args: fields=%v  args=%v", fields, args)
	}

	return false, nil
}
Ejemplo n.º 6
0
// SelectorFromSet returns a Selector which will match exactly the given Set. A
// nil and empty Sets are considered equivalent to Everything().
func SelectorFromSet(ls Set) Selector {
	if ls == nil {
		return LabelSelector{}
	}
	var requirements []Requirement
	for label, value := range ls {
		if r, err := NewRequirement(label, EqualsOperator, util.NewStringSet(value)); err != nil {
			//TODO: double check errors when input comes from serialization?
			return LabelSelector{}
		} else {
			requirements = append(requirements, *r)
		}
	}
	return LabelSelector(requirements)
}
Ejemplo n.º 7
0
// parseValues parses the values for set based matching (x,y,z)
func (p *Parser) parseValues() (util.StringSet, error) {
	tok, lit := p.consume(Values)
	if tok != OpenParToken {
		return nil, fmt.Errorf("found '%s' expected: '('", lit)
	}
	tok, lit = p.lookahead(Values)
	switch tok {
	case IdentifierToken, CommaToken:
		s, err := p.parseIdentifiersList() // handles general cases
		if err != nil {
			return s, err
		}
		if tok, _ = p.consume(Values); tok != ClosedParToken {
			return nil, fmt.Errorf("found '%s', expected: ')'", lit)
		}
		return s, nil
	case ClosedParToken: // handles "()"
		p.consume(Values)
		return util.NewStringSet(""), nil
	default:
		return nil, fmt.Errorf("found '%s', expected: ',', ')' or identifier", lit)
	}
	return util.NewStringSet(), nil
}
Ejemplo n.º 8
0
	"net/url"
	"path"
	"strings"

	"github.com/golang/glog"
	"golang.org/x/net/html"
	"golang.org/x/net/html/atom"

	"vulcan/kubernetes/pkg/util"
)

// atomsToAttrs states which attributes of which tags require URL substitution.
// Sources: http://www.w3.org/TR/REC-html40/index/attributes.html
//          http://www.w3.org/html/wg/drafts/html/master/index.html#attributes-1
var atomsToAttrs = map[atom.Atom]util.StringSet{
	atom.A:          util.NewStringSet("href"),
	atom.Applet:     util.NewStringSet("codebase"),
	atom.Area:       util.NewStringSet("href"),
	atom.Audio:      util.NewStringSet("src"),
	atom.Base:       util.NewStringSet("href"),
	atom.Blockquote: util.NewStringSet("cite"),
	atom.Body:       util.NewStringSet("background"),
	atom.Button:     util.NewStringSet("formaction"),
	atom.Command:    util.NewStringSet("icon"),
	atom.Del:        util.NewStringSet("cite"),
	atom.Embed:      util.NewStringSet("src"),
	atom.Form:       util.NewStringSet("action"),
	atom.Frame:      util.NewStringSet("longdesc", "src"),
	atom.Head:       util.NewStringSet("profile"),
	atom.Html:       util.NewStringSet("manifest"),
	atom.Iframe:     util.NewStringSet("longdesc", "src"),
Ejemplo n.º 9
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	func(a, b util.Time) bool {
		return a.UTC() == b.UTC()
	},
	func(a, b labels.Selector) bool {
		return a.String() == b.String()
	},
	func(a, b fields.Selector) bool {
		return a.String() == b.String()
	},
)

var standardResources = util.NewStringSet(
	string(ResourceMemory),
	string(ResourceCPU),
	string(ResourcePods),
	string(ResourceQuotas),
	string(ResourceServices),
	string(ResourceReplicationControllers),
	string(ResourceSecrets),
	string(ResourcePersistentVolumeClaims),
	string(ResourceStorage))

func IsStandardResourceName(str string) bool {
	return standardResources.Has(str)
}

// NewDeleteOptions returns a DeleteOptions indicating the resource should
// be deleted within the specified grace period. Use zero to indicate
// immediate deletion. If you would prefer to use the default grace period,
// use &api.DeleteOptions{} directly.
func NewDeleteOptions(grace int64) *DeleteOptions {
	return &DeleteOptions{GracePeriodSeconds: &grace}