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 {
   6                 ~/.ssh/id_dsa.pub ~/.ssh/id_ecdsa.pub ~/.ssh/id_ed25519.pub
   7                 ~/.ssh/id_rsa.pub ~/.ssh/identity.pub
   8         } {
   9                 if {[file exists $name]} {
  10                         set fh    [open $name r]
  11                         set cont  [read $fh]
  12                         close $fh
  13                         return [list $name $cont]
  14                 }
  15         }
  16
  17         return {}
  18 }
  19
  20 proc do_ssh_key {} {
  21         global sshkey_title have_tk85 sshkey_fd use_ttk NS
  22
  23         set w .sshkey_dialog
  24         if {[winfo exists $w]} {
  25                 raise $w
  26                 return
  27         }
  28
  29         Dialog $w
  30         wm transient $w .
  31
  32         set finfo [find_ssh_key]
  33         if {$finfo eq {}} {
  34                 set sshkey_title [mc "No keys found."]
  35                 set gen_state   normal
  36         } else {
  37                 set sshkey_title [mc "Found a public key in: %s" [lindex $finfo 0]]
  38                 set gen_state   disabled
  39         }
  40
  41         ${NS}::frame $w.header
  42         ${NS}::label $w.header.lbl -textvariable sshkey_title -anchor w
  43         ${NS}::button $w.header.gen -text [mc "Generate Key"] \
  44                 -command [list make_ssh_key $w] -state $gen_state
  45         pack $w.header.lbl -side left -expand 1 -fill x
  46         pack $w.header.gen -side right
  47         pack $w.header -fill x -pady 5 -padx 5
  48
  49         text $w.contents -width 60 -height 10 -wrap char -relief sunken
  50         pack $w.contents -fill both -expand 1
  51         if {$have_tk85} {
  52                 set clr darkblue
  53                 if {$use_ttk} { set clr [ttk::style lookup . -selectbackground] }
  54                 $w.contents configure -inactiveselectbackground $clr
  55         }
  56
  57         ${NS}::frame $w.buttons
  58         ${NS}::button $w.buttons.close -text [mc Close] \
  59                 -default active -command [list destroy $w]
  60         pack $w.buttons.close -side right
  61         ${NS}::button $w.buttons.copy -text [mc "Copy To Clipboard"] \
  62                 -command [list tk_textCopy $w.contents]
  63         pack $w.buttons.copy -side left
  64         pack $w.buttons -side bottom -fill x -pady 5 -padx 5
  65
  66         if {$finfo ne {}} {
  67                 $w.contents insert end [lindex $finfo 1] sel
  68         }
  69         $w.contents configure -state disabled
  70
  71         bind $w <Visibility> "grab $w; focus $w.buttons.close"
  72         bind $w <Key-Escape> "destroy $w"
  73         bind $w <Key-Return> "destroy $w"
  74         bind $w <Destroy> kill_sshkey
  75         wm title $w [mc "Your OpenSSH Public Key"]
  76         tk::PlaceWindow $w widget .
  77         tkwait window $w
  78 }
  79
  80 proc make_ssh_key {w} {
  81         global sshkey_title sshkey_output sshkey_fd
  82
  83         set sshkey_title [mc "Generating..."]
  84         $w.header.gen configure -state disabled
  85
  86         set cmdline [list sh -c {echo | ssh-keygen -q -t rsa -f ~/.ssh/id_rsa 2>&1}]
  87
  88         if {[catch { set sshkey_fd [_open_stdout_stderr $cmdline] } err]} {
  89                 error_popup [mc "Could not start ssh-keygen:\n\n%s" $err]
  90                 return
  91         }
  92
  93         set sshkey_output {}
  94         fconfigure $sshkey_fd -blocking 0
  95         fileevent $sshkey_fd readable [list read_sshkey_output $sshkey_fd $w]
  96 }
  97
  98 proc kill_sshkey {} {
  99         global sshkey_fd
 100         if {![info exists sshkey_fd]} return
 101         catch { kill_file_process $sshkey_fd }
 102         catch { close $sshkey_fd }
 103 }
 104
 105 proc read_sshkey_output {fd w} {
 106         global sshkey_fd sshkey_output sshkey_title
 107
 108         set sshkey_output "$sshkey_output[read $fd]"
 109         if {![eof $fd]} return
 110
 111         fconfigure $fd -blocking 1
 112         unset sshkey_fd
 113
 114         $w.contents configure -state normal
 115         if {[catch {close $fd} err]} {
 116                 set sshkey_title [mc "Generation failed."]
 117                 $w.contents insert end $err
 118                 $w.contents insert end "\n"
 119                 $w.contents insert end $sshkey_output
 120         } else {
 121                 set finfo [find_ssh_key]
 122                 if {$finfo eq {}} {
 123                         set sshkey_title [mc "Generation succeeded, but no keys found."]
 124                         $w.contents insert end $sshkey_output
 125                 } else {
 126                         set sshkey_title [mc "Your key is in: %s" [lindex $finfo 0]]
 127                         $w.contents insert end [lindex $finfo 1] sel
 128                 }
 129         }
 130         $w.contents configure -state disable
 131 }