OpenWrt网页支持升级本地package
Install packages via web interface
Trigger to send file
in file of packages.htm(View), which represent the apperance at Client’s site, use method of POST , and input of FILE and SUBMIT . the following code can be add to packages.htm
Note: .tar.gz file should be used.
example:
<form method="post" action="<%=REQUEST_URI%>" enctype="multipart/form-data">
<!-- show feedback ---->
<% if (install and next(install)) or (remove and next(remove)) or update or upgrade then %>
<div class="cbi-value">
<% if #stdout > 0 then %><pre><%=pcdata(stdout)%></pre><% end %>
<% if #stderr > 0 then %><pre class="error"><%=pcdata(stderr)%></pre><% end %>
</div>
<% end %>
<!-- send post ---->
<div class="cbi-section-descr"><%:To install a package from local PC, you can choose a package file here.%></div>
<div class="cbi-section-node">
<div class="cbi-value cbi-value-last">
<label class="cbi-value-title" for=" ipk"><%:Transfer and install package%>:</label>
<div class="cbi-value-field">
<input type="file" name="ipk" id=" ipk" size="30"/>
<input type="submit" class="cbi-button cbi-input-apply" name="restore" value="<%:Start transfer...%>" />
</div>
</div>
</div>
</form>
Receive the request
system.lua(Controller), which defined a structure corresponding to the behavior options on the web page, points out how every operation be handled, typically via methods of call or cbi. In this case, call(“action_packages”) will be involved.
example:
entry({"admin", "system", "packages"}, call("action_packages"), _("Software"), 10)
handle packages of file
typical implementation
Refer to action_flashops in system.lua(Controller), filehandler of http need to be set to inform http that how to handle the packages,and “restore” of form value need to be handle in this function.
So insert the following code in action_packages:
local upload_cmd = "tar -xzC/ >/dev/null 2>&1"
local fp
-- I don't known why this function doesn't take any effect indeed here,
-- so set Request.filehandler directly in http.lua
luci.http.setfilehandler(
function(meta, chunk, eof)
if not fp then
if meta and meta.name == "ipk" then
fp = io.popen(upload_cmd, "w")
end
end
if chunk then
fp:write(chunk)
end
if eof then
fp:close()
end
end
)
if luci.http.formvalue("restore") then
local upload = luci.http.formvalue("ipk")
if upload and #upload > 0 then
install["my.ipk"], out, err = ipkg.install("/my.ipk")
stdout[#stdout+1] = out
stderr[#stderr+1] = err
changes = true
os.execute("rm / my.ipk")
end
end
problem solution
actually, I failed to restore the uploading file by the way introduced in the previous chapter, refer to the comment(yellow color). Anyway, I found another way to fulfill the target, which is a little clumsy – insert the following code into Request.__init__ of http.lua:
local io = require "io"
local fp = nil
local restore_cmd = "tar -xzC/ >/dev/null 2>&1"
local image_tmp = "/tmp/firmware.img"
self.filehandler = function(meta, chunk, eof)
if not fp then
if meta and meta.name == "image" then
fp = io.open(image_tmp, "w")
else
fp = io.popen(restore_cmd, "w")
end
end
if chunk then
fp:write(chunk)
end
if eof then
fp:close()
end
end