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authorBrent Baude <bbaude@redhat.com>2020-03-20 12:37:37 -0500
committerBrent Baude <bbaude@redhat.com>2020-03-20 18:27:08 -0500
commitc3a9ff11743c1ee25515ced348ec635fb7703aa0 (patch)
tree380dedfa9ffb337ebe197b15c218b3a1bfc627b6 /cmd/podmanV2/parse
parent7a095af92a6a39845b1c362222b23632f3e17001 (diff)
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podmanv2 volume create
add volume create Signed-off-by: Brent Baude <bbaude@redhat.com>
Diffstat (limited to 'cmd/podmanV2/parse')
-rw-r--r--cmd/podmanV2/parse/parse.go188
-rw-r--r--cmd/podmanV2/parse/parse_test.go152
2 files changed, 340 insertions, 0 deletions
diff --git a/cmd/podmanV2/parse/parse.go b/cmd/podmanV2/parse/parse.go
new file mode 100644
index 000000000..03cda268c
--- /dev/null
+++ b/cmd/podmanV2/parse/parse.go
@@ -0,0 +1,188 @@
+//nolint
+// most of these validate and parse functions have been taken from projectatomic/docker
+// and modified for cri-o
+package parse
+
+import (
+ "bufio"
+ "fmt"
+ "net"
+ "net/url"
+ "os"
+ "regexp"
+ "strings"
+
+ "github.com/pkg/errors"
+)
+
+const (
+ Protocol_TCP Protocol = 0
+ Protocol_UDP Protocol = 1
+)
+
+type Protocol int32
+
+// PortMapping specifies the port mapping configurations of a sandbox.
+type PortMapping struct {
+ // Protocol of the port mapping.
+ Protocol Protocol `protobuf:"varint,1,opt,name=protocol,proto3,enum=runtime.Protocol" json:"protocol,omitempty"`
+ // Port number within the container. Default: 0 (not specified).
+ ContainerPort int32 `protobuf:"varint,2,opt,name=container_port,json=containerPort,proto3" json:"container_port,omitempty"`
+ // Port number on the host. Default: 0 (not specified).
+ HostPort int32 `protobuf:"varint,3,opt,name=host_port,json=hostPort,proto3" json:"host_port,omitempty"`
+ // Host IP.
+ HostIp string `protobuf:"bytes,4,opt,name=host_ip,json=hostIp,proto3" json:"host_ip,omitempty"`
+}
+
+// Note: for flags that are in the form <number><unit>, use the RAMInBytes function
+// from the units package in docker/go-units/size.go
+
+var (
+ whiteSpaces = " \t"
+ alphaRegexp = regexp.MustCompile(`[a-zA-Z]`)
+ domainRegexp = regexp.MustCompile(`^(:?(:?[a-zA-Z0-9]|(:?[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9]))(:?\.(:?[a-zA-Z0-9]|(:?[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])))*)\.?\s*$`)
+)
+
+// validateExtraHost validates that the specified string is a valid extrahost and returns it.
+// ExtraHost is in the form of name:ip where the ip has to be a valid ip (ipv4 or ipv6).
+// for add-host flag
+func ValidateExtraHost(val string) (string, error) { //nolint
+ // allow for IPv6 addresses in extra hosts by only splitting on first ":"
+ arr := strings.SplitN(val, ":", 2)
+ if len(arr) != 2 || len(arr[0]) == 0 {
+ return "", fmt.Errorf("bad format for add-host: %q", val)
+ }
+ if _, err := validateIPAddress(arr[1]); err != nil {
+ return "", fmt.Errorf("invalid IP address in add-host: %q", arr[1])
+ }
+ return val, nil
+}
+
+// validateIPAddress validates an Ip address.
+// for dns, ip, and ip6 flags also
+func validateIPAddress(val string) (string, error) {
+ var ip = net.ParseIP(strings.TrimSpace(val))
+ if ip != nil {
+ return ip.String(), nil
+ }
+ return "", fmt.Errorf("%s is not an ip address", val)
+}
+
+func ValidateDomain(val string) (string, error) {
+ if alphaRegexp.FindString(val) == "" {
+ return "", fmt.Errorf("%s is not a valid domain", val)
+ }
+ ns := domainRegexp.FindSubmatch([]byte(val))
+ if len(ns) > 0 && len(ns[1]) < 255 {
+ return string(ns[1]), nil
+ }
+ return "", fmt.Errorf("%s is not a valid domain", val)
+}
+
+// GetAllLabels retrieves all labels given a potential label file and a number
+// of labels provided from the command line.
+func GetAllLabels(labelFile, inputLabels []string) (map[string]string, error) {
+ labels := make(map[string]string)
+ for _, file := range labelFile {
+ // Use of parseEnvFile still seems safe, as it's missing the
+ // extra parsing logic of parseEnv.
+ // There's an argument that we SHOULD be doing that parsing for
+ // all environment variables, even those sourced from files, but
+ // that would require a substantial rework.
+ if err := parseEnvFile(labels, file); err != nil {
+ // FIXME: parseEnvFile is using parseEnv, so we need to add extra
+ // logic for labels.
+ return nil, err
+ }
+ }
+ for _, label := range inputLabels {
+ split := strings.SplitN(label, "=", 2)
+ if split[0] == "" {
+ return nil, errors.Errorf("invalid label format: %q", label)
+ }
+ value := ""
+ if len(split) > 1 {
+ value = split[1]
+ }
+ labels[split[0]] = value
+ }
+ return labels, nil
+}
+
+func parseEnv(env map[string]string, line string) error {
+ data := strings.SplitN(line, "=", 2)
+
+ // catch invalid variables such as "=" or "=A"
+ if data[0] == "" {
+ return errors.Errorf("invalid environment variable: %q", line)
+ }
+
+ // trim the front of a variable, but nothing else
+ name := strings.TrimLeft(data[0], whiteSpaces)
+ if strings.ContainsAny(name, whiteSpaces) {
+ return errors.Errorf("name %q has white spaces, poorly formatted name", name)
+ }
+
+ if len(data) > 1 {
+ env[name] = data[1]
+ } else {
+ if strings.HasSuffix(name, "*") {
+ name = strings.TrimSuffix(name, "*")
+ for _, e := range os.Environ() {
+ part := strings.SplitN(e, "=", 2)
+ if len(part) < 2 {
+ continue
+ }
+ if strings.HasPrefix(part[0], name) {
+ env[part[0]] = part[1]
+ }
+ }
+ } else {
+ // if only a pass-through variable is given, clean it up.
+ if val, ok := os.LookupEnv(name); ok {
+ env[name] = val
+ }
+ }
+ }
+ return nil
+}
+
+// parseEnvFile reads a file with environment variables enumerated by lines
+func parseEnvFile(env map[string]string, filename string) error {
+ fh, err := os.Open(filename)
+ if err != nil {
+ return err
+ }
+ defer fh.Close()
+
+ scanner := bufio.NewScanner(fh)
+ for scanner.Scan() {
+ // trim the line from all leading whitespace first
+ line := strings.TrimLeft(scanner.Text(), whiteSpaces)
+ // line is not empty, and not starting with '#'
+ if len(line) > 0 && !strings.HasPrefix(line, "#") {
+ if err := parseEnv(env, line); err != nil {
+ return err
+ }
+ }
+ }
+ return scanner.Err()
+}
+
+// ValidateFileName returns an error if filename contains ":"
+// as it is currently not supported
+func ValidateFileName(filename string) error {
+ if strings.Contains(filename, ":") {
+ return errors.Errorf("invalid filename (should not contain ':') %q", filename)
+ }
+ return nil
+}
+
+// ValidURL checks a string urlStr is a url or not
+func ValidURL(urlStr string) error {
+ _, err := url.ParseRequestURI(urlStr)
+ if err != nil {
+ return errors.Wrapf(err, "invalid url path: %q", urlStr)
+ }
+ return nil
+}
diff --git a/cmd/podmanV2/parse/parse_test.go b/cmd/podmanV2/parse/parse_test.go
new file mode 100644
index 000000000..a6ddc2be9
--- /dev/null
+++ b/cmd/podmanV2/parse/parse_test.go
@@ -0,0 +1,152 @@
+//nolint
+// most of these validate and parse functions have been taken from projectatomic/docker
+// and modified for cri-o
+package parse
+
+import (
+ "io/ioutil"
+ "os"
+ "testing"
+
+ "github.com/stretchr/testify/assert"
+)
+
+var (
+ Var1 = []string{"ONE=1", "TWO=2"}
+)
+
+func createTmpFile(content []byte) (string, error) {
+ tmpfile, err := ioutil.TempFile(os.TempDir(), "unittest")
+ if err != nil {
+ return "", err
+ }
+
+ if _, err := tmpfile.Write(content); err != nil {
+ return "", err
+
+ }
+ if err := tmpfile.Close(); err != nil {
+ return "", err
+ }
+ return tmpfile.Name(), nil
+}
+
+func TestValidateExtraHost(t *testing.T) {
+ type args struct {
+ val string
+ }
+ tests := []struct {
+ name string
+ args args
+ want string
+ wantErr bool
+ }{
+ //2001:0db8:85a3:0000:0000:8a2e:0370:7334
+ {name: "good-ipv4", args: args{val: "foobar:192.168.1.1"}, want: "foobar:192.168.1.1", wantErr: false},
+ {name: "bad-ipv4", args: args{val: "foobar:999.999.999.99"}, want: "", wantErr: true},
+ {name: "bad-ipv4", args: args{val: "foobar:999.999.999"}, want: "", wantErr: true},
+ {name: "noname-ipv4", args: args{val: "192.168.1.1"}, want: "", wantErr: true},
+ {name: "noname-ipv4", args: args{val: ":192.168.1.1"}, want: "", wantErr: true},
+ {name: "noip", args: args{val: "foobar:"}, want: "", wantErr: true},
+ {name: "noip", args: args{val: "foobar"}, want: "", wantErr: true},
+ {name: "good-ipv6", args: args{val: "foobar:2001:0db8:85a3:0000:0000:8a2e:0370:7334"}, want: "foobar:2001:0db8:85a3:0000:0000:8a2e:0370:7334", wantErr: false},
+ {name: "bad-ipv6", args: args{val: "foobar:0db8:85a3:0000:0000:8a2e:0370:7334"}, want: "", wantErr: true},
+ {name: "bad-ipv6", args: args{val: "foobar:0db8:85a3:0000:0000:8a2e:0370:7334.0000.0000.000"}, want: "", wantErr: true},
+ {name: "noname-ipv6", args: args{val: "2001:0db8:85a3:0000:0000:8a2e:0370:7334"}, want: "", wantErr: true},
+ {name: "noname-ipv6", args: args{val: ":2001:0db8:85a3:0000:0000:8a2e:0370:7334"}, want: "", wantErr: true},
+ }
+ for _, tt := range tests {
+ t.Run(tt.name, func(t *testing.T) {
+ got, err := ValidateExtraHost(tt.args.val)
+ if (err != nil) != tt.wantErr {
+ t.Errorf("ValidateExtraHost() error = %v, wantErr %v", err, tt.wantErr)
+ return
+ }
+ if got != tt.want {
+ t.Errorf("ValidateExtraHost() = %v, want %v", got, tt.want)
+ }
+ })
+ }
+}
+
+func Test_validateIPAddress(t *testing.T) {
+ type args struct {
+ val string
+ }
+ tests := []struct {
+ name string
+ args args
+ want string
+ wantErr bool
+ }{
+ {name: "ipv4-good", args: args{val: "192.168.1.1"}, want: "192.168.1.1", wantErr: false},
+ {name: "ipv4-bad", args: args{val: "192.168.1.1.1"}, want: "", wantErr: true},
+ {name: "ipv4-bad", args: args{val: "192."}, want: "", wantErr: true},
+ }
+ for _, tt := range tests {
+ t.Run(tt.name, func(t *testing.T) {
+ got, err := validateIPAddress(tt.args.val)
+ if (err != nil) != tt.wantErr {
+ t.Errorf("validateIPAddress() error = %v, wantErr %v", err, tt.wantErr)
+ return
+ }
+ if got != tt.want {
+ t.Errorf("validateIPAddress() = %v, want %v", got, tt.want)
+ }
+ })
+ }
+}
+
+func TestValidateFileName(t *testing.T) {
+ type args struct {
+ filename string
+ }
+ tests := []struct {
+ name string
+ args args
+ wantErr bool
+ }{
+ {name: "good", args: args{filename: "/some/rand/path"}, wantErr: false},
+ {name: "good", args: args{filename: "some/rand/path"}, wantErr: false},
+ {name: "good", args: args{filename: "/"}, wantErr: false},
+ {name: "bad", args: args{filename: "/:"}, wantErr: true},
+ {name: "bad", args: args{filename: ":/"}, wantErr: true},
+ {name: "bad", args: args{filename: "/some/rand:/path"}, wantErr: true},
+ }
+ for _, tt := range tests {
+ t.Run(tt.name, func(t *testing.T) {
+ if err := ValidateFileName(tt.args.filename); (err != nil) != tt.wantErr {
+ t.Errorf("ValidateFileName() error = %v, wantErr %v", err, tt.wantErr)
+ }
+ })
+ }
+}
+
+func TestGetAllLabels(t *testing.T) {
+ fileLabels := []string{}
+ labels, _ := GetAllLabels(fileLabels, Var1)
+ assert.Equal(t, len(labels), 2)
+}
+
+func TestGetAllLabelsBadKeyValue(t *testing.T) {
+ inLabels := []string{"=badValue", "="}
+ fileLabels := []string{}
+ _, err := GetAllLabels(fileLabels, inLabels)
+ assert.Error(t, err, assert.AnError)
+}
+
+func TestGetAllLabelsBadLabelFile(t *testing.T) {
+ fileLabels := []string{"/foobar5001/be"}
+ _, err := GetAllLabels(fileLabels, Var1)
+ assert.Error(t, err, assert.AnError)
+}
+
+func TestGetAllLabelsFile(t *testing.T) {
+ content := []byte("THREE=3")
+ tFile, err := createTmpFile(content)
+ defer os.Remove(tFile)
+ assert.NoError(t, err)
+ fileLabels := []string{tFile}
+ result, _ := GetAllLabels(fileLabels, Var1)
+ assert.Equal(t, len(result), 3)
+}