1 files changed, 61 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/go-getter/detect_s3.go b/vendor/github.com/hashicorp/go-getter/detect_s3.go
new file mode 100644
index 0000000..8e0f4a0
--- /dev/null
+++ b/vendor/github.com/hashicorp/go-getter/detect_s3.go
@@ -0,0 +1,61 @@
+package getter
+
+import (
+        "fmt"
+        "net/url"
+        "strings"
+)
+
+// S3Detector implements Detector to detect S3 URLs and turn
+// them into URLs that the S3 getter can understand.
+type S3Detector struct{}
+
+func (d *S3Detector) Detect(src, _ string) (string, bool, error) {
+        if len(src) == 0 {
+                return "", false, nil
+        }
+
+        if strings.Contains(src, ".amazonaws.com/") {
+                return d.detectHTTP(src)
+        }
+
+        return "", false, nil
+}
+
+func (d *S3Detector) detectHTTP(src string) (string, bool, error) {
+        parts := strings.Split(src, "/")
+        if len(parts) < 2 {
+                return "", false, fmt.Errorf(
+                        "URL is not a valid S3 URL")
+        }
+
+        hostParts := strings.Split(parts[0], ".")
+        if len(hostParts) == 3 {
+                return d.detectPathStyle(hostParts[0], parts[1:])
+        } else if len(hostParts) == 4 {
+                return d.detectVhostStyle(hostParts[1], hostParts[0], parts[1:])
+        } else {
+                return "", false, fmt.Errorf(
+                        "URL is not a valid S3 URL")
+        }
+}
+
+func (d *S3Detector) detectPathStyle(region string, parts []string) (string, bool, error) {
+        urlStr := fmt.Sprintf("https://%s.amazonaws.com/%s", region, strings.Join(parts, "/"))
+        url, err := url.Parse(urlStr)
+        if err != nil {
+                return "", false, fmt.Errorf("error parsing S3 URL: %s", err)
+        }
+
+        return "s3::" + url.String(), true, nil
+}
+
+func (d *S3Detector) detectVhostStyle(region, bucket string, parts []string) (string, bool, error) {
+        urlStr := fmt.Sprintf("https://%s.amazonaws.com/%s/%s", region, bucket, strings.Join(parts, "/"))
+        url, err := url.Parse(urlStr)
+        if err != nil {
+                return "", false, fmt.Errorf("error parsing S3 URL: %s", err)
+        }
+
+        return "s3::" + url.String(), true, nil
+}