Ship an ACL definition for granting full read/write access to uci
configuration files via ubus rpc. This is a precondition for enabling
uci session isolation later on.
Admin Localnet [Mon, 30 Oct 2017 20:12:25 +0000 (21:12 +0100)]
luci-app-lxc: various changes
1) Modify dependencies
Add dependencies required for to be able use containers created from
"images.linuxcontainers.org". Several of them require "lxc-attach" for set
password so to be able login. None of them has SSH preinstalled so
"lxc-console" is required to be able login and install SSH, for example.
Remove dependency "xz", it seems incompatible with LXC_BUSYBOX_OPTIONS when
both are enabled happens a build crash.
2) Change container image repository
The repository "virtualwrt.org/containers/" seems to not work, I have change
it by the official LXC container image repository.
3) Translate the arch
Translate the local uname architecture to a valid "images.linuxcontainers.org"
arch. Only tested with the platform "mvebu" (armv7l -> armhf).
4) Other minor fixes
Use same server to list images and download the image.
Disable GPG check when listing images.
Reported-by: "Admin Localnet <redacted>"
[Squashed commits, cleaned up whitespace, refactor arch mapping, escape url
setting, use system wide ubus helper, use uci model library]
luci-base: properly handle repeated POST parameters
Restore the old luci.http behaviour of converting repeated POST params into
single tables holding all values instead of letting each repeated parameter
overwrite the value of the preceeding one.
Fixes, among other things, the handling of CBI dynamic list values.
Fixes #1752
Fixes 59dea0230 ("luci-base: switch to lucihttp based POST data processing") Signed-off-by: Jo-Philipp Wich <redacted>
luci-base: implement session handling in luci.model.uci
Introduce luci.model.uci.set_session_id() and luci.model.uci.get_session_id()
to set and get the effective session ID respectively.
When a session ID is set, it is sent as `ubus_rpc_session` attribute to rpcd,
causing it to use per-session change directories, isolating LuCI changes from
the global system uci state.
LuCI itself now uses ubus calls to interact with uci configuration while
the remaining direct libuci-lua users have been updated to either depend
on the binding library or to use luci.model.uci.
With only the decoder routines remaining in luci.http.protocol, it makes no
sense to keep the low level protocol class around, so fold the remaining code
into the central luci.http class.
Also adjust the few direct users of luci.http.protocol accordingly.
- Rewrite getcookie() to use liblucihttp header value parsing
- Rewrite setfilehandler() to use local variables and have cleaner code
- Fix build_querystring() to actually *en*code the given params
b7470d1 lua: back out early when instantiating parser with bad boundary e1b1b1f testcases: remove stray .swp file b46a6ca utils: introduce new LH_URLDECODE_PLUS flag
luci-base: fix rendering of 404 HTML error template
This 404 error template rendering has been broken for a long time due to bad
function environment level in luci.template when invoking the rendering from
the toplevel dispatcher context.
Fix this issue by adding a local function indirection, essentially adding an
additional stack frame.
luci-base: error404: do not access request env directly
Instead of attempting to access the request environment directly (which does
not work anyway using the CGI SGI), use the already sanitized
dispatcher.context.request property to print out the not found url.
luci-base: don't propagate null bytes in path information
It is possible to inject unescaped markup using a double encoded null byte
via PATH_INFO on certain leaf nodes.
Since there is no legitimate reason to handle null bytes in any part of the
requested url, simply skip over such bytes when parsing the PATH_INFO value.
luci-base: add urldecode() and urlencode() C implementations
The C implementations of urlencode and urldecode are considerably faster
than their current Lua counterparts.
On an AMD Geode system, the C variant is up to ten times faster when
decoding strings and up to four times faster when encoding them.
The functions are also designed to only allocate new strings when any
actual changes are required, otherwise they reuse the existing input
strings, reducing the overal memory usage somewhat.
Marc Benoit [Mon, 9 Apr 2018 14:17:02 +0000 (17:17 +0300)]
luci-mod-admin-full: allow setting dns cachesize
In the case of more powerful routers the default
cachesize value == 150 is too small and can easily
be extended to 1,000's and 10,000's of entries.
It makes sense to make it easy configurable.
Tested on Netgear R7800
Signed-off-by: Marc Benoit <redacted>
Fix whitespace, edit the proposed help text. Signed-off-by: Hannu Nyman <redacted>
There is no direct user of the libuci-lua api, just some commented out code.
Rewrite the commented code to use the Map's uci cursor and remove the
explicit require.
Introduce a get_state() function which can be used to access legacy
uci state variables. This is usually not needed anymore but some
packages (mainly mwan3) still rely on this.
treewide: improve handling of page redirections in uci change views
Instead of passing the full LuCI request url, pass the relative resolved
request path instead and filter the received value through the lookup()
dispatcher function to only allow paths to actual internal pages.
The lookup function takes multiple, possibly malformed path fragments,
splits them on slashes, constructs a temporary path and looks up the
result in the dispatch tree.
If a matching node has been found, the function will return both the
node reference and the canonical url to it.
If no corresponding node is found, the function returns nil.
Invoke the SimpleForm models using the form() action, not the cbi() ones.
This avoids the extraneous rendering of the cbi header template, avoiding
rejected save operations due to duplicated token value.
Introduce a new function luci.util.shellquote() which encloses the given
string argument in single quotes and escapes any embedded single quote
characters.
This function is intended to be used when interpolating untrusted input
into shell commands.
luci-base: dispatcher: reject non-POST requests with any cbi.submit value
Due to the fact that luci.model.cbi reacts on any "cbi.submit" value while
the dispatcher only required POST for cbi.submit == 1, the CSRF token
protection could be bypassed.
Introduce a new template property FULL_REQUEST_URI which returns the full
canonicalized request URL built from SCRIPT_NAME, PATH_INFO and QUERY_STRING.
This new property is safer to use compared to using the raw REQUEST_URI CGI
environment variable directly as this value is essentially untrusted user
input which may contain embedded escaped slashes, double forward slashes and
other oddities allowing XSS exploitation or request redirection.
Jo-Philipp Wich [Thu, 22 Mar 2018 08:49:52 +0000 (09:49 +0100)]
luci-base: add a strict flag to the hostname validator
Some applications, e.g. dnsmasq, do not allow hostnames starting with an
underscore, therefor extend the existing hostname datatype validator with
a `strict` which disallows a leading underscore.