Generating a new SSH key or finding an existing one may
be a difficult task for non-technical users, especially
on Windows.
This commit adds a new dialog that shows the public key,
or allows the user to generate a new one if none were found.
Since this is a convenience/informational feature for new
users, and the dialog is mostly read-only, it is located
in the Help menu.
The command line used to invoke ssh-keygen is designed to
force it to use SSH_ASKPASS if available, or accept empty
passphrases, but _never_ wait for user response on the tty.
Signed-off-by: Alexander Gavrilov <angavrilov@xxxxxxxxx>
---
git-gui.sh | 4 ++
lib/sshkey.tcl | 126 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 130 insertions(+), 0 deletions(-)
create mode 100644 lib/sshkey.tcl
diff --git a/git-gui.sh b/git-gui.sh
index 4f95139..e4d1f70 100755
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -2536,6 +2536,10 @@ proc start_browser {url} {
.mbar.help add command -label [mc "Online Documentation"] \
-command [list start_browser $doc_url]
+
+.mbar.help add command -label [mc "Show SSH Key"] \
+ -command do_ssh_key
+
unset doc_path doc_url
# -- Standard bindings
diff --git a/lib/sshkey.tcl b/lib/sshkey.tcl
new file mode 100644
index 0000000..82a1a80
--- /dev/null
+++ b/lib/sshkey.tcl
@@ -0,0 +1,126 @@
+# git-gui about git-gui dialog
+# Copyright (C) 2006, 2007 Shawn Pearce
+
+proc find_ssh_key {} {
+ foreach name {~/.ssh/id_dsa.pub ~/.ssh/id_rsa.pub ~/.ssh/identity.pub} {
+ if {[file exists $name]} {
+ set fh [open $name r]
+ set cont [read $fh]
+ close $fh
+ return [list $name $cont]
+ }
+ }
+
+ return {}
+}
+
+proc do_ssh_key {} {
+ global sshkey_title have_tk85 sshkey_fd
+
+ set w .sshkey_dialog
+ if {[winfo exists $w]} {
+ raise $w
+ return
+ }
+
+ toplevel $w
+ wm transient $w .
+
+ set finfo [find_ssh_key]
+ if {$finfo eq {}} {
+ set sshkey_title [mc "No keys found."]
+ set gen_state normal
+ } else {
+ set sshkey_title [mc "Found a public key in: %s" [lindex $finfo 0]]
+ set gen_state disabled
+ }
+
+ frame $w.header -relief flat
+ label $w.header.lbl -textvariable sshkey_title -anchor w
+ button $w.header.gen -text [mc "Generate Key"] \
+ -command [list make_ssh_key $w] -state $gen_state
+ pack $w.header.lbl -side left -expand 1 -fill x
+ pack $w.header.gen -side right
+ pack $w.header -fill x -pady 5 -padx 5
+
+ text $w.contents -width 60 -height 10 -wrap char -relief sunken
+ pack $w.contents -fill both -expand 1
+ if {$have_tk85} {
+ $w.contents configure -inactiveselectbackground darkblue
+ }
+
+ frame $w.buttons
+ button $w.buttons.close -text [mc Close] \
+ -default active -command [list destroy $w]
+ pack $w.buttons.close -side right
+ button $w.buttons.copy -text [mc "Copy To Clipboard"] \
+ -command [list tk_textCopy $w.contents]
+ pack $w.buttons.copy -side left
+ pack $w.buttons -side bottom -fill x -pady 5 -padx 5
+
+ if {$finfo ne {}} {
+ $w.contents insert end [lindex $finfo 1] sel
+ }
+ $w.contents configure -state disabled
+
+ bind $w <Visibility> "grab $w; focus $w.buttons.close"
+ bind $w <Key-Escape> "destroy $w"
+ bind $w <Key-Return> "destroy $w"
+ bind $w <Destroy> kill_sshkey
+ wm title $w [mc "Your OpenSSH Public Key"]
+ tk::PlaceWindow $w widget .
+ tkwait window $w
+}
+
+proc make_ssh_key {w} {
+ global sshkey_title sshkey_output sshkey_fd
+
+ set sshkey_title [mc "Generating..."]
+ $w.header.gen configure -state disabled
+
+ set cmdline [list sh -c {echo | ssh-keygen -q -t rsa -f ~/.ssh/id_rsa 2>&1}]
+
+ if {[catch { set sshkey_fd [_open_stdout_stderr $cmdline] } err]} {
+ error_popup [mc "Could not start ssh-keygen:\n\n%s" $err]
+ return
+ }
+
+ set sshkey_output {}
+ fconfigure $sshkey_fd -blocking 0
+ fileevent $sshkey_fd readable [list read_sshkey_output $sshkey_fd $w]
+}
+
+proc kill_sshkey {} {
+ global sshkey_fd
+ if {![info exists sshkey_fd]} return
+ catch { kill_file_process $sshkey_fd }
+ catch { close $sshkey_fd }
+}
+
+proc read_sshkey_output {fd w} {
+ global sshkey_fd sshkey_output sshkey_title
+
+ set sshkey_output "$sshkey_output[read $fd]"
+ if {![eof $fd]} return
+
+ fconfigure $fd -blocking 1
+ unset sshkey_fd
+
+ $w.contents configure -state normal
+ if {[catch {close $fd} err]} {
+ set sshkey_title [mc "Generation failed."]
+ $w.contents insert end $err
+ $w.contents insert end "\n"
+ $w.contents insert end $sshkey_output
+ } else {
+ set finfo [find_ssh_key]
+ if {$finfo eq {}} {
+ set sshkey_title [mc "Generation succeded, but no keys found."]
+ $w.contents insert end $sshkey_output
+ } else {
+ set sshkey_title [mc "Your key is in: %s" [lindex $finfo 0]]
+ $w.contents insert end [lindex $finfo 1] sel
+ }
+ }
+ $w.contents configure -state disable
+}
--
1.6.0.20.g6148bc
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