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http: Make path matcher case-insensitive
Adds tests for both the path matcher and host matcher for case insensitivity. If case sensitivity is required for the path, a regexp matcher can be used instead. This is the v2 equivalent fix of PR #2882.
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@ -33,10 +33,10 @@ import (
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)
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type (
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// MatchHost matches requests by the Host value.
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// MatchHost matches requests by the Host value (case-insensitive).
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MatchHost []string
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// MatchPath matches requests by the URI's path.
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// MatchPath matches requests by the URI's path (case-insensitive).
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MatchPath []string
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// MatchPathRE matches requests by a regular expression on the URI's path.
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@ -154,20 +154,29 @@ func (MatchPath) CaddyModule() caddy.ModuleInfo {
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}
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}
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// Provision lower-cases the paths in m to ensure case-insensitive matching.
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func (m MatchPath) Provision(_ caddy.Context) error {
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for i := range m {
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m[i] = strings.ToLower(m[i])
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}
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return nil
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}
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// Match returns true if r matches m.
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func (m MatchPath) Match(r *http.Request) bool {
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lowerPath := strings.ToLower(r.URL.Path)
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for _, matchPath := range m {
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// as a special case, if the first character is a
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// wildcard, treat it as a quick suffix match
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if strings.HasPrefix(matchPath, "*") {
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return strings.HasSuffix(r.URL.Path, matchPath[1:])
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return strings.HasSuffix(lowerPath, matchPath[1:])
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}
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// can ignore error here because we can't handle it anyway
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matches, _ := filepath.Match(matchPath, r.URL.Path)
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matches, _ := filepath.Match(matchPath, lowerPath)
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if matches {
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return true
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}
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if strings.HasPrefix(r.URL.Path, matchPath) {
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if strings.HasPrefix(lowerPath, matchPath) {
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return true
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}
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}
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@ -47,6 +47,16 @@ func TestHostMatcher(t *testing.T) {
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input: "example.com",
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expect: true,
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},
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{
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match: MatchHost{"EXAMPLE.COM"},
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input: "example.com",
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expect: true,
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},
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{
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match: MatchHost{"example.com"},
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input: "EXAMPLE.COM",
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expect: true,
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},
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{
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match: MatchHost{"example.com"},
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input: "foo.example.com",
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@ -72,6 +82,11 @@ func TestHostMatcher(t *testing.T) {
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input: "example.com",
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expect: false,
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},
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{
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match: MatchHost{"*.example.com"},
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input: "SUB.EXAMPLE.COM",
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expect: true,
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},
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{
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match: MatchHost{"*.example.com"},
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input: "foo.example.com",
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@ -174,7 +189,12 @@ func TestPathMatcher(t *testing.T) {
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},
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{
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match: MatchPath{"*.ext"},
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input: "foo.ext",
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input: "/foo.ext",
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expect: true,
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},
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{
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match: MatchPath{"*.php"},
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input: "/index.PHP",
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expect: true,
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},
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{
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@ -192,6 +212,16 @@ func TestPathMatcher(t *testing.T) {
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input: "/foo/bar/bam",
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expect: false,
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},
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{
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match: MatchPath{"/foo"},
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input: "/FOO",
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expect: true,
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},
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{
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match: MatchPath{"/foo/bar.txt"},
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input: "/foo/BAR.txt",
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expect: true,
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},
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} {
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req := &http.Request{URL: &url.URL{Path: tc.input}}
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actual := tc.match.Match(req)
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