From 61104b8eed155a798a69256d45776cb3e1a40ccf Mon Sep 17 00:00:00 2001
From: Ted Trask <ttrask01@yahoo.com>
Date: Wed, 19 Nov 2008 14:25:49 +0000
Subject: Modified lbu to add ability to download overlay package.

git-svn-id: svn://svn.alpinelinux.org/acf/alpine-conf/trunk@1601 ab2d0c66-481e-0410-8bed-d214d4d58bed
---
 lbu-controller.lua       |  5 +++++
 lbu-listchanges-html.lsp |  9 +++++++++
 lbu-model.lua            | 27 +++++++++++++++++++++++++++
 lbu.roles                |  4 ++--
 4 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/lbu-controller.lua b/lbu-controller.lua
index 3db860d..8ced688 100644
--- a/lbu-controller.lua
+++ b/lbu-controller.lua
@@ -42,3 +42,8 @@ end
 function selectbackup(self)
 	return self:redirect_to_referrer(self.model.selectbackupfile(self.clientdata.backup))
 end
+
+function getpackage(self)
+	self.conf.viewtype = "stream"
+	return self.model.getpackage()
+end
diff --git a/lbu-listchanges-html.lsp b/lbu-listchanges-html.lsp
index 88c1655..0733e96 100644
--- a/lbu-listchanges-html.lsp
+++ b/lbu-listchanges-html.lsp
@@ -18,6 +18,15 @@ io.write("</span>")
 	end
 end %>
 
+<% if session.permissions.lbu.getpackage then %>
+<H1>Download Overlay</H1>
+<DL>
+	<DT>Generate and download overlay</DT>
+	<DD><form action="<%= page_info.script .. page_info.prefix %>lbu/getpackage" method="POST">
+	<input class="submit" type="submit" name="Download" value="Download"></form></DD>
+</DL>
+<% end %>
+
 <H1>Changes Since Last Commit</H1>
 <DL>
 	<dt>Files changed since last commit</dt>
diff --git a/lbu-model.lua b/lbu-model.lua
index ae91096..a5856d2 100644
--- a/lbu-model.lua
+++ b/lbu-model.lua
@@ -433,3 +433,30 @@ function selectbackupfile(selectfile)
 	end
 	return cmdresult
 end
+
+function getpackage()
+	-- create a temporary directory to store the file
+	require("session")
+	local tmp = "/tmp/"..session.random_hash(10)
+	while posix.stat( tmp ) do
+		tmp = "/tmp/"..session.random_hash(10)
+	end
+	posix.mkdir(tmp)
+	local f = io.popen("PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin lbu package "..tmp.." 2>&1")
+	local cmdresult = f:read("*a")
+	f:close()
+
+	-- find and read the file
+	local package = cfe({ type="raw", label="error", option="application/x-gzip" })
+	for name in fs.find(".*tar%.gz", tmp) do
+		package.label = basename(name)
+		package.value = fs.read_file(name)
+		break
+	end
+
+	-- delete the temp directory and file
+	f = io.popen("rm -r "..tmp)
+	f:close()
+
+	return package
+end
diff --git a/lbu.roles b/lbu.roles
index ac628c4..a9888ed 100644
--- a/lbu.roles
+++ b/lbu.roles
@@ -1,5 +1,5 @@
 GUEST=lbu:status
-USER=lbu:listchanges
+USER=lbu:listchanges,lbu:getpackage
 EDITOR=lbu:config,lbu:commit,lbu:editincluded,lbu:editexcluded,lbu:listbackups,lbu:selectbackup
 EXPERT=lbu:expert
-ADMIN=lbu:status,lbu:listchanges,lbu:config,lbu:commit,lbu:editincluded,lbu:editexcluded,lbu:listbackups,lbu:selectbackup,lbu:expert
+ADMIN=lbu:status,lbu:listchanges,lbu:getpackage,lbu:config,lbu:commit,lbu:editincluded,lbu:editexcluded,lbu:listbackups,lbu:selectbackup,lbu:expert
-- 
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