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931656bd68
* acmeserver: support specifying the allowed challenge types * add caddyfile adapt tests * acmeserver: add `policy` field to define allow/deny rules * allow `omitempty` to work * add caddyfile support for `policy` * remove "uri domain" policy * fmt the files * add docs * do not support `CommonName`; the field is deprecated * r/DNSDomains/Domains/g * Caddyfile docs * add tests * move `Policy` to top of file
84 lines
2.8 KiB
Go
84 lines
2.8 KiB
Go
package acmeserver
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import (
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"github.com/smallstep/certificates/authority/policy"
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"github.com/smallstep/certificates/authority/provisioner"
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)
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// Policy defines the criteria for the ACME server
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// of when to issue a certificate. Refer to the
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// [Certificate Issuance Policy](https://smallstep.com/docs/step-ca/policies/)
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// on Smallstep website for the evaluation criteria.
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type Policy struct {
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// If a rule set is configured to allow a certain type of name,
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// all other types of names are automatically denied.
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Allow *RuleSet `json:"allow,omitempty"`
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// If a rule set is configured to deny a certain type of name,
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// all other types of names are still allowed.
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Deny *RuleSet `json:"deny,omitempty"`
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// If set to true, the ACME server will allow issuing wildcard certificates.
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AllowWildcardNames bool `json:"allow_wildcard_names,omitempty"`
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}
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// RuleSet is the specific set of SAN criteria for a certificate
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// to be issued or denied.
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type RuleSet struct {
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// Domains is a list of DNS domains that are allowed to be issued.
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// It can be in the form of FQDN for specific domain name, or
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// a wildcard domain name format, e.g. *.example.com, to allow
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// sub-domains of a domain.
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Domains []string `json:"domains,omitempty"`
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// IP ranges in the form of CIDR notation or specific IP addresses
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// to be approved or denied for certificates. Non-CIDR IP addresses
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// are matched exactly.
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IPRanges []string `json:"ip_ranges,omitempty"`
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}
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// normalizeAllowRules returns `nil` if policy is nil, the `Allow` rule is `nil`,
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// or all rules within the `Allow` rule are empty. Otherwise, it returns the X509NameOptions
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// with the content of the `Allow` rule.
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func (p *Policy) normalizeAllowRules() *policy.X509NameOptions {
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if (p == nil) || (p.Allow == nil) || (len(p.Allow.Domains) == 0 && len(p.Allow.IPRanges) == 0) {
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return nil
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}
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return &policy.X509NameOptions{
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DNSDomains: p.Allow.Domains,
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IPRanges: p.Allow.IPRanges,
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}
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}
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// normalizeDenyRules returns `nil` if policy is nil, the `Deny` rule is `nil`,
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// or all rules within the `Deny` rule are empty. Otherwise, it returns the X509NameOptions
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// with the content of the `Deny` rule.
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func (p *Policy) normalizeDenyRules() *policy.X509NameOptions {
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if (p == nil) || (p.Deny == nil) || (len(p.Deny.Domains) == 0 && len(p.Deny.IPRanges) == 0) {
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return nil
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}
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return &policy.X509NameOptions{
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DNSDomains: p.Deny.Domains,
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IPRanges: p.Deny.IPRanges,
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}
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}
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// normalizeRules returns `nil` if policy is nil, the `Allow` and `Deny` rules are `nil`,
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func (p *Policy) normalizeRules() *provisioner.X509Options {
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if p == nil {
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return nil
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}
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allow := p.normalizeAllowRules()
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deny := p.normalizeDenyRules()
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if allow == nil && deny == nil && !p.AllowWildcardNames {
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return nil
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}
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return &provisioner.X509Options{
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AllowedNames: allow,
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DeniedNames: deny,
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AllowWildcardNames: p.AllowWildcardNames,
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}
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}
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