diff options
| author | Patrick Widmer <patrick.widmer@tbwnet.ch> | 2023-03-02 21:41:51 +0100 |
|---|---|---|
| committer | Patrick Widmer <patrick.widmer@tbwnet.ch> | 2023-03-03 20:48:55 +0100 |
| commit | 7089294f10068dbeeed6e2e4d7a24300bf4bacb6 (patch) | |
| tree | b905d320eb3a640282fff4d98b0e9068fb136fe0 /lib/strings.nix | |
| parent | Merge pull request #217508 from wegank/phodav-2-drop (diff) | |
| download | nixpkgs-7089294f10068dbeeed6e2e4d7a24300bf4bacb6.tar.gz | |
strings: add escapeQuery for url encoding
Diffstat (limited to 'lib/strings.nix')
| -rw-r--r-- | lib/strings.nix | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/lib/strings.nix b/lib/strings.nix index 68d930950662..e49ed4382240 100644 --- a/lib/strings.nix +++ b/lib/strings.nix @@ -34,6 +34,8 @@ rec { unsafeDiscardStringContext ; + asciiTable = import ./ascii-table.nix; + /* Concatenate a list of strings. Type: concatStrings :: [string] -> string @@ -327,9 +329,7 @@ rec { => 40 */ - charToInt = let - table = import ./ascii-table.nix; - in c: builtins.getAttr c table; + charToInt = c: builtins.getAttr c asciiTable; /* Escape occurrence of the elements of `list` in `string` by prefixing it with a backslash. @@ -355,6 +355,21 @@ rec { */ escapeC = list: replaceStrings list (map (c: "\\x${ toLower (lib.toHexString (charToInt c))}") list); + /* Escape the string so it can be safely placed inside a URL + query. + + Type: escapeURL :: string -> string + + Example: + escapeURL "foo/bar baz" + => "foo%2Fbar%20baz" + */ + escapeURL = let + unreserved = [ "A" "B" "C" "D" "E" "F" "G" "H" "I" "J" "K" "L" "M" "N" "O" "P" "Q" "R" "S" "T" "U" "V" "W" "X" "Y" "Z" "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q" "r" "s" "t" "u" "v" "w" "x" "y" "z" "0" "1" "2" "3" "4" "5" "6" "7" "8" "9" "-" "_" "." "~" ]; + toEscape = builtins.removeAttrs asciiTable unreserved; + in + replaceStrings (builtins.attrNames toEscape) (lib.mapAttrsToList (_: c: "%${fixedWidthString 2 "0" (lib.toHexString c)}") toEscape); + /* Quote string to be used safely within the Bourne shell. Type: escapeShellArg :: string -> string |