git-gui/lib/sshkey.tcl

   1 # git-gui about git-gui dialog
   2 # Copyright (C) 2006, 2007 Shawn Pearce
   3
   4 proc find_ssh_key {} {
   5         foreach name {~/.ssh/id_dsa.pub ~/.ssh/id_rsa.pub ~/.ssh/identity.pub} {
   6                 if {[file exists $name]} {
   7                         set fh    [open $name r]
   8                         set cont  [read $fh]
   9                         close $fh
  10                         return [list $name $cont]
  11                 }
  12         }
  13
  14         return {}
  15 }
  16
  17 proc do_ssh_key {} {
  18         global sshkey_title have_tk85 sshkey_fd use_ttk NS
  19
  20         set w .sshkey_dialog
  21         if {[winfo exists $w]} {
  22                 raise $w
  23                 return
  24         }
  25
  26         Dialog $w
  27         wm transient $w .
  28
  29         set finfo [find_ssh_key]
  30         if {$finfo eq {}} {
  31                 set sshkey_title [mc "No keys found."]
  32                 set gen_state   normal
  33         } else {
  34                 set sshkey_title [mc "Found a public key in: %s" [lindex $finfo 0]]
  35                 set gen_state   disabled
  36         }
  37
  38         ${NS}::frame $w.header
  39         ${NS}::label $w.header.lbl -textvariable sshkey_title -anchor w
  40         ${NS}::button $w.header.gen -text [mc "Generate Key"] \
  41                 -command [list make_ssh_key $w] -state $gen_state
  42         pack $w.header.lbl -side left -expand 1 -fill x
  43         pack $w.header.gen -side right
  44         pack $w.header -fill x -pady 5 -padx 5
  45
  46         text $w.contents -width 60 -height 10 -wrap char -relief sunken
  47         pack $w.contents -fill both -expand 1
  48         if {$have_tk85} {
  49                 set clr darkblue
  50                 if {$use_ttk} { set clr [ttk::style lookup . -selectbackground] }
  51                 $w.contents configure -inactiveselectbackground $clr
  52         }
  53
  54         ${NS}::frame $w.buttons
  55         ${NS}::button $w.buttons.close -text [mc Close] \
  56                 -default active -command [list destroy $w]
  57         pack $w.buttons.close -side right
  58         ${NS}::button $w.buttons.copy -text [mc "Copy To Clipboard"] \
  59                 -command [list tk_textCopy $w.contents]
  60         pack $w.buttons.copy -side left
  61         pack $w.buttons -side bottom -fill x -pady 5 -padx 5
  62
  63         if {$finfo ne {}} {
  64                 $w.contents insert end [lindex $finfo 1] sel
  65         }
  66         $w.contents configure -state disabled
  67
  68         bind $w <Visibility> "grab $w; focus $w.buttons.close"
  69         bind $w <Key-Escape> "destroy $w"
  70         bind $w <Key-Return> "destroy $w"
  71         bind $w <Destroy> kill_sshkey
  72         wm title $w [mc "Your OpenSSH Public Key"]
  73         tk::PlaceWindow $w widget .
  74         tkwait window $w
  75 }
  76
  77 proc make_ssh_key {w} {
  78         global sshkey_title sshkey_output sshkey_fd
  79
  80         set sshkey_title [mc "Generating..."]
  81         $w.header.gen configure -state disabled
  82
  83         set cmdline [list sh -c {echo | ssh-keygen -q -t rsa -f ~/.ssh/id_rsa 2>&1}]
  84
  85         if {[catch { set sshkey_fd [_open_stdout_stderr $cmdline] } err]} {
  86                 error_popup [mc "Could not start ssh-keygen:\n\n%s" $err]
  87                 return
  88         }
  89
  90         set sshkey_output {}
  91         fconfigure $sshkey_fd -blocking 0
  92         fileevent $sshkey_fd readable [list read_sshkey_output $sshkey_fd $w]
  93 }
  94
  95 proc kill_sshkey {} {
  96         global sshkey_fd
  97         if {![info exists sshkey_fd]} return
  98         catch { kill_file_process $sshkey_fd }
  99         catch { close $sshkey_fd }
 100 }
 101
 102 proc read_sshkey_output {fd w} {
 103         global sshkey_fd sshkey_output sshkey_title
 104
 105         set sshkey_output "$sshkey_output[read $fd]"
 106         if {![eof $fd]} return
 107
 108         fconfigure $fd -blocking 1
 109         unset sshkey_fd
 110
 111         $w.contents configure -state normal
 112         if {[catch {close $fd} err]} {
 113                 set sshkey_title [mc "Generation failed."]
 114                 $w.contents insert end $err
 115                 $w.contents insert end "\n"
 116                 $w.contents insert end $sshkey_output
 117         } else {
 118                 set finfo [find_ssh_key]
 119                 if {$finfo eq {}} {
 120                         set sshkey_title [mc "Generation succeeded, but no keys found."]
 121                         $w.contents insert end $sshkey_output
 122                 } else {
 123                         set sshkey_title [mc "Your key is in: %s" [lindex $finfo 0]]
 124                         $w.contents insert end [lindex $finfo 1] sel
 125                 }
 126         }
 127         $w.contents configure -state disable
 128 }