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Prefix URLs in templates with AtlantisURL
Resolves runatlantis#213 Allows users to run Atlantis behind a shared reverse proxy, which is a fairly common use case.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| package server | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net/url" | ||
| "strings" | ||
| ) | ||
|
|
||
| // NormalizeBaseURL ensures the given URL is a valid base URL for Atlantis. | ||
| // | ||
| // URLs that are fundamentally invalid (e.g. "hi") will return an error. | ||
| // Otherwise, the returned URL will have no trailing slashes and be guaranteed | ||
| // to be suitable for use as a base URL. | ||
| func NormalizeBaseURL(u *url.URL) (*url.URL, error) { | ||
| if !u.IsAbs() { | ||
| return nil, fmt.Errorf("Base URLs must be absolute.") | ||
| } | ||
| if !(u.Scheme == "http" || u.Scheme == "https") { | ||
| return nil, fmt.Errorf("Base URLs must be HTTP or HTTPS.") | ||
| } | ||
| out := *u | ||
| out.Path = strings.TrimRight(out.Path, "/") | ||
| return &out, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| package server_test | ||
|
|
||
| import ( | ||
| "net/url" | ||
| "testing" | ||
|
|
||
| "github.com/runatlantis/atlantis/server" | ||
| . "github.com/runatlantis/atlantis/testing" | ||
| ) | ||
|
|
||
| func TestNormalizeBaseURL_Valid(t *testing.T) { | ||
| t.Log("When given a valid base URL, NormalizeBaseURL returns such URLs unchanged.") | ||
| examples := []string{ | ||
| "https://example.com", | ||
| "https://example.com/some/path", | ||
| "http://example.com:8080", | ||
| } | ||
| for _, example := range examples { | ||
| url, err := url.Parse(example) | ||
| Ok(t, err) | ||
| normalized, err := server.NormalizeBaseURL(url) | ||
| Ok(t, err) | ||
| Equals(t, url, normalized) | ||
| } | ||
| } | ||
|
|
||
| func TestNormalizeBaseURL_Relative(t *testing.T) { | ||
| t.Log("We do not allow relative URLs as base URLs.") | ||
| _, err := server.NormalizeBaseURL(&url.URL{Path: "hi"}) | ||
| Assert(t, err != nil, "should be an error") | ||
| Equals(t, "Base URLs must be absolute.", err.Error()) | ||
| } | ||
|
|
||
| func TestNormalizeBaseURL_NonHTTP(t *testing.T) { | ||
| t.Log("Base URLs must be http or https.") | ||
| _, err := server.NormalizeBaseURL(&url.URL{Scheme: "ftp", Host: "example", Path: "hi"}) | ||
| Assert(t, err != nil, "should be an error") | ||
| Equals(t, "Base URLs must be HTTP or HTTPS.", err.Error()) | ||
| } | ||
|
|
||
| func TestNormalizeBaseURL_TrailingSlashes(t *testing.T) { | ||
| t.Log("We strip off any trailing slashes from the base URL.") | ||
| examples := []struct { | ||
| input string | ||
| output string | ||
| }{ | ||
| {"https://example.com/", "https://example.com"}, | ||
| {"https://example.com/some/path/", "https://example.com/some/path"}, | ||
| {"http://example.com:8080/", "http://example.com:8080"}, | ||
| {"https://example.com//", "https://example.com"}, | ||
| {"https://example.com/path///", "https://example.com/path"}, | ||
| } | ||
| for _, example := range examples { | ||
| inputURL, err := url.Parse(example.input) | ||
| Ok(t, err) | ||
| outputURL, err := url.Parse(example.output) | ||
| Ok(t, err) | ||
| normalized, err := server.NormalizeBaseURL(inputURL) | ||
| Ok(t, err) | ||
| Equals(t, outputURL, normalized) | ||
| } | ||
| } |
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