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f2b492e0ce
Former-commit-id: 6f9843613e6abfe0b19e6e43f9299afb98645477 [formerly 805fa39b073401c946b559e0e967fdc553f16295] [formerly f9e2de337abc0cbeb5ccdb8b6962871b0bd3ee0e [formerly 1d26b8e95e73a94ba92673861c4e83dfded0d92e]] Former-commit-id: 259a1ba8cdc71e7d32add58f9487e5827aa6685e [formerly 161a1a49bc1158f11f07fc9ff638506dafb6c918] Former-commit-id: 67fe1fef4602baf4ddae40b28e65ac9a2a42ca9d
51 lines
905 B
Go
51 lines
905 B
Go
package filemanager
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import (
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"crypto/md5"
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"crypto/sha1"
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"crypto/sha256"
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"crypto/sha512"
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"encoding/hex"
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e "errors"
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"hash"
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"io"
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"net/http"
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"os"
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)
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// checksum calculates the hash of a file. Supports MD5, SHA1, SHA256 and SHA512.
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func checksum(ctx *requestContext, w http.ResponseWriter, r *http.Request) (int, error) {
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query := r.URL.Query().Get("checksum")
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file, err := os.Open(ctx.Info.Path)
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if err != nil {
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return errorToHTTP(err, true), err
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}
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defer file.Close()
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var h hash.Hash
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switch query {
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case "md5":
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h = md5.New()
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case "sha1":
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h = sha1.New()
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case "sha256":
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h = sha256.New()
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case "sha512":
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h = sha512.New()
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default:
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return http.StatusBadRequest, e.New("Unknown HASH type")
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}
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_, err = io.Copy(h, file)
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if err != nil {
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return http.StatusInternalServerError, err
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}
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val := hex.EncodeToString(h.Sum(nil))
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w.Write([]byte(val))
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return http.StatusOK, nil
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}
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