33 lines
942 B
Go
33 lines
942 B
Go
package tunnel
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import (
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"fmt"
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"regexp"
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tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
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)
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// Restrict key names to characters allowed in an HTTP header name.
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// Restrict key values to printable characters (what is recognised as data in an HTTP header value).
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var tagRegexp = regexp.MustCompile("^([a-zA-Z0-9!#$%&'*+\\-.^_`|~]+)=([[:print:]]+)$")
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func NewTagFromCLI(compoundTag string) (tunnelpogs.Tag, bool) {
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matches := tagRegexp.FindStringSubmatch(compoundTag)
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if len(matches) == 0 {
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return tunnelpogs.Tag{}, false
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}
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return tunnelpogs.Tag{Name: matches[1], Value: matches[2]}, true
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}
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func NewTagSliceFromCLI(tags []string) ([]tunnelpogs.Tag, error) {
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var tagSlice []tunnelpogs.Tag
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for _, compoundTag := range tags {
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if tag, ok := NewTagFromCLI(compoundTag); ok {
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tagSlice = append(tagSlice, tag)
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} else {
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return nil, fmt.Errorf("Cannot parse tag value %s", compoundTag)
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}
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}
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return tagSlice, nil
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}
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