(* Guestfs Browser.
* Copyright (C) 2010 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*)
open ExtString
open ExtList
open CamomileLibrary
open Default.Camomile
open Unix
open Utils
open Filetree_type
open Printf
(* Base colours. XXX Should be configurable somewhere. *)
let file_color = 0x20, 0x20, 0xff (* regular file *)
let dir_color = 0x80, 0x80, 0x20 (* directory *)
let symlink_color = file_color (* symlink *)
let suid_color = 0x20, 0x20, 0x80 (* setuid bit set on regular file *)
let suid_bgcolor = 0xff, 0xc0, 0xc0
let sgid_color = suid_color (* setgid bit set on regular file *)
let sgid_bgcolor = suid_bgcolor
let block_color = 0x00, 0x60, 0x60 (* block device *)
let char_color = block_color (* char device *)
let fifo_color = 0x60, 0x00, 0x60 (* fifo *)
let socket_color = fifo_color (* socket *)
let other_color = file_color (* anything not one of the above *)
(* Mark up a filename for the name_col column.
*
* See also
* http://library.gnome.org/devel/pango/stable/PangoMarkupFormat.html
*)
let rec markup_of_name ?(visited = false) direntry =
let name = direntry.Slave.dent_name in
let mode = direntry.Slave.dent_stat.Guestfs.mode in
if is_directory mode then ( (* directory *)
let fg = if not visited then normal dir_color else darken dir_color in
sprintf "%s"
fg (markup_escape name)
)
else if is_symlink mode then ( (* symlink *)
let link = direntry.Slave.dent_link in
let fg =
if not visited then normal symlink_color else darken symlink_color in
sprintf "%s %s %s"
fg (markup_escape name) utf8_rarrow fg (markup_escape link)
)
else ( (* not directory, not symlink *)
let fg, bg =
if is_regular_file mode then (
if is_suid mode then suid_color, Some suid_bgcolor
else if is_sgid mode then sgid_color, Some sgid_bgcolor
else file_color, None
)
else if is_block mode then block_color, None
else if is_char mode then char_color, None
else if is_fifo mode then fifo_color, None
else if is_socket mode then socket_color, None
else other_color, None in
let fg = if not visited then normal fg else darken fg in
let bg =
match bg with
| Some bg -> sprintf " bgcolor=\"%s\"" (normal bg)
| None -> "" in
sprintf "%s"
fg bg (markup_escape name)
)
(* Mark up a registry key. *)
and markup_of_regkey ?(visited = false) h node =
let name = Hivex.node_name h node in
let name = if name = "" then "@" else name in
let fg = if not visited then normal dir_color else darken dir_color in
sprintf "%s" fg (markup_escape name)
(* Mark up a registry value. *)
and markup_of_regvalue ?(visited = false) h value =
debug "markup_of_regvalue";
let k = Hivex.value_key h value in
let t, v = Hivex.value_value h value in
(* Ignore long values. *)
let len = String.length v in
let v =
if len >= 256 then
sprintf "<%d bytes not printed>" len
else (
(* Deal as best we can with printing the value. *)
match t with
| Hivex.REG_NONE -> if v = "" then "" else markup_hex_data v
| Hivex.REG_SZ -> markup_windows_string v
| Hivex.REG_EXPAND_SZ -> markup_windows_string v
| Hivex.REG_BINARY -> markup_hex_data v
| Hivex.REG_DWORD ->
(bitmatch Bitstring.bitstring_of_string v with
| { i : 32 : littleendian } -> sprintf "%08lx" i
| { _ } -> markup_hex_data v)
| Hivex.REG_DWORD_BIG_ENDIAN ->
(bitmatch Bitstring.bitstring_of_string v with
| { i : 32 : bigendian } -> sprintf "%08lx" i
| { _ } -> markup_hex_data v)
| Hivex.REG_LINK -> markup_hex_data v
| Hivex.REG_MULTI_SZ -> (* XXX could do better with this *)
markup_hex_data v
| Hivex.REG_RESOURCE_LIST -> markup_hex_data v
| Hivex.REG_FULL_RESOURCE_DESCRIPTOR -> markup_hex_data v
| Hivex.REG_RESOURCE_REQUIREMENTS_LIST -> markup_hex_data v
| Hivex.REG_QWORD ->
(bitmatch Bitstring.bitstring_of_string v with
| { i : 64 : littleendian } -> sprintf "%016Lx" i
| { _ } -> markup_hex_data v)
| Hivex.REG_UNKNOWN i32 -> markup_hex_data v
) in
let fg = if not visited then normal file_color else darken file_color in
sprintf "%s=%s"
fg (markup_escape k) fg v
(* Mark up registry value as hex data. *)
and markup_hex_data v =
let vs = String.explode v in
let vs = List.mapi (
fun i c ->
sprintf "%s%02x" (if i mod 16 = 0 then "\n" else "") (int_of_char c)
) vs in
String.concat "," vs
(* Best guess the format of the string and convert to UTF-8. *)
and markup_windows_string v =
try markup_escape (windows_string_to_utf8 v)
with CharEncoding.Malformed_code | CharEncoding.Out_of_range ->
(* Fallback to displaying the string as hex. *)
markup_hex_data v
and normal (r, g, b) =
let r = if r < 0 then 0 else if r > 255 then 255 else r in
let g = if g < 0 then 0 else if g > 255 then 255 else g in
let b = if b < 0 then 0 else if b > 255 then 255 else b in
sprintf "#%02x%02x%02x" r g b
and darken (r, g, b) =
normal (r * 4 / 10, g * 4 / 10, b * 4 / 10)
(* Mark up mode. *)
let markup_of_mode mode =
let c =
if is_socket mode then 's'
else if is_symlink mode then 'l'
else if is_regular_file mode then '-'
else if is_block mode then 'b'
else if is_directory mode then 'd'
else if is_char mode then 'c'
else if is_fifo mode then 'p' else '?' in
let ru = if is_ru mode then 'r' else '-' in
let wu = if is_wu mode then 'w' else '-' in
let xu = if is_xu mode then 'x' else '-' in
let rg = if is_rg mode then 'r' else '-' in
let wg = if is_wg mode then 'w' else '-' in
let xg = if is_xg mode then 'x' else '-' in
let ro = if is_ro mode then 'r' else '-' in
let wo = if is_wo mode then 'w' else '-' in
let xo = if is_xo mode then 'x' else '-' in
let str = sprintf "%c%c%c%c%c%c%c%c%c%c" c ru wu xu rg wg xg ro wo xo in
let suid = is_suid mode in
let sgid = is_sgid mode in
let svtx = is_svtx mode in
if suid then str.[3] <- 's';
if sgid then str.[6] <- 's';
if svtx then str.[9] <- 't';
"" ^ str ^ ""
(* Mark up dates. *)
let markup_of_date t =
(* Guestfs gives us int64's, we want float which is OCaml's
* equivalent of time_t.
*)
let t = Int64.to_float t in
let show_full_date () =
let tm = localtime t in
sprintf "%04d-%02d-%02d %02d:%02d:%02d"
(tm.tm_year + 1900) (tm.tm_mon + 1) tm.tm_mday
tm.tm_hour tm.tm_min tm.tm_sec
in
(* How long ago? *)
let now = time () in
let ago = now -. t in
if ago < 0. then (* future *)
show_full_date ()
else if ago < 60. then
"now"
else if ago < 60. *. 60. then
sprintf "%.0f minutes ago" (ago /. 60.)
else if ago < 60. *. 60. *. 24. then
sprintf "%.0f hours ago" (ago /. 60. /. 60.)
else if ago < 60. *. 60. *. 24. *. 28. then
sprintf "%.0f days ago" (ago /. 60. /. 60. /. 24.)
else
show_full_date ()
(* Mark up file sizes. *)
let markup_of_size bytes =
sprintf "%s" (human_size bytes)
(* Mark up registry value types. *)
let markup_of_regvaluetype h value =
let t, _ = Hivex.value_value h value in
match t with
| Hivex.REG_NONE -> "none(0)"
| Hivex.REG_SZ -> "str(1)"
| Hivex.REG_EXPAND_SZ -> "str(2)"
| Hivex.REG_BINARY -> "hex(3)"
| Hivex.REG_DWORD -> "dword(4)"
| Hivex.REG_DWORD_BIG_ENDIAN -> "dword(5)"
| Hivex.REG_LINK -> "link(6)"
| Hivex.REG_MULTI_SZ -> "multi string (7)"
| Hivex.REG_RESOURCE_LIST -> "resource list (8)"
| Hivex.REG_FULL_RESOURCE_DESCRIPTOR -> "full resource descriptor (9)"
| Hivex.REG_RESOURCE_REQUIREMENTS_LIST -> "resource requirements list (10)"
| Hivex.REG_QWORD -> "qword (11)"
| Hivex.REG_UNKNOWN i32 -> sprintf "type 0x%08lx" i32
(* Mark up registry value sizes. *)
let markup_of_regvaluesize h value =
let _, len = Hivex.value_type h value in
sprintf "%d" len
(* This is a bit of a hack. Ideally just setting 'visited' would
* darken the colour when the cell was re-rendered. However that would
* mean we couldn't store other stuff in the name column. Therefore,
* repopulate the name column.
*)
let set_visited ({ model = model; name_col = name_col } as t) row =
let hdata = get_hdata t row in
if hdata.visited = false then (
hdata.visited <- true;
match hdata.content with
| Directory direntry | File direntry ->
debug "set_visited %s" direntry.Slave.dent_name;
model#set ~row ~column:name_col
(markup_of_name ~visited:true direntry)
| RegKey node ->
debug "set_visited RegKey";
let h = Option.get hdata.hiveh in
model#set ~row ~column:name_col
(markup_of_regkey ~visited:true h node)
| RegValue value ->
debug "set_visited RegValue";
let h = Option.get hdata.hiveh in
model#set ~row ~column:name_col
(markup_of_regvalue ~visited:true h value)
| Loading | ErrorMessage _ | Info _ | Top _ | TopWinReg _ -> ()
)