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diff --git a/documentation/JsonRpcHowTo.md b/documentation/JsonRpcHowTo.md new file mode 100644 index 0000000000..76d61f86e3 --- /dev/null +++ b/documentation/JsonRpcHowTo.md @@ -0,0 +1,66 @@ +LuCI provides some of its libraries to external applications through a JSON-RPC API. +This Howto shows how to use it and provides information about available functions. + + +# Basics +LuCI comes with an efficient JSON De-/Encoder together with a JSON-RPC-Server which implements the *JSON-RPC 1.0_' and 2.0 (partly) specifications. The LuCI JSON-RPC server offers several independent APIs. Therefore you have to use '_different URLs for every exported library*. +Assuming your LuCI-Installation can be reached through */cgi-bin/luci_' any exported library can be reached via '''/cgi-bin/luci/rpc/''LIBRARY_*. + + +# Authentication +Most exported libraries will require a valid authentication to be called with. If you get an *HTTP 403 Forbidden_' status code you are probably missing a valid authentication token. To get such a token you have to call the function '''login''' of the RPC-Library '''auth'''. Following our example from above this login function would be provided at '_/cgi-bin/luci/rpc/auth*. The function accepts 2 parameters: username and password (of a valid user account on the host system) and returns an authentication token. + +If you want to call any exported library which requires an authentication token you have to *append it as an URL parameter _auth''''' to the RPC-Server URL. So instead of calling '''/cgi-bin/luci/rpc/''LIBRARY''''' you have to call '''/cgi-bin/luci/rpc/''LIBRARY''?auth=''TOKEN_*. + +If your JSON-RPC client is Cookie-aware (like most browsers are) you will receive the authentication token also with a session cookie and probably don't have to append it to the RPC-Server URL. + + +# Exported Libraries +## uci +The UCI-Library */rpc/uci* offers functionality to interact with the Universal Configuration Interface. +*Exported Functions:* +* [(string) add(config, type)](http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.add) +* [(integer) apply(config)](http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.apply) +* [http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.changes (object) changes([config])] +* [(boolean) commit(config)](http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.commit) +* [http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.delete (boolean) delete(config, section[, option])] +* [http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.delete_all (boolean) delete_all(config[, type])] +* [http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.foreach (array) foreach(config[, type])] +* [http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.get (mixed) get(config, section[, option])] +* [http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.get_all (object) get_all(config[, section])] +* [http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.get (mixed) get_state(config, section[, option])] +* [(boolean) revert(config)](http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.revert) +* [(name) section(config, type, name, values)](http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.section) +* [(boolean) set(config, section, option, value)](http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.set) +* [(boolean) tset(config, section, values)](http://luci.subsignal.org/api/luci/modules/luci.model.uci.html#Cursor.tset) + +## uvl +The UVL-Library */rpc/uvl* offers functionality to validate UCI files and get schemes describing UCI files. +*Exported Functions:* +* [(array) get_scheme(scheme)](http://luci.subsignal.org/api/luci/modules/luci.uvl.html#UVL.get_scheme) +* [(array) validate(config, section, option)](http://luci.subsignal.org/api/luci/modules/luci.uvl.html#UVL.validate) +* [(array) validate_config(config)](http://luci.subsignal.org/api/luci/modules/luci.uvl.html#UVL.validate_config) +* [(array) validate_section(config, section)](http://luci.subsignal.org/api/luci/modules/luci.uvl.html#UVL.validate_section) +* [(array) validate(config, section, option)](http://luci.subsignal.org/api/luci/modules/luci.uvl.html#UVL.validate_option) + +## fs +The Filesystem library */rpc/fs* offers functionality to interact with the filesystem on the host machine. +*Exported Functions:* + +* [Complete luci.fs library](http://luci.subsignal.org/api/luci/modules/luci.fs.html) +*Note:* All functions are exported as they are except for _readfile'' which encodes its return value in base64 and ''writefile'' which only accepts base64 encoded data as second argument. Note that both functions will only be available when the ''luasocket_ packet is installed on the hostsystem. + +## sys +The System library */rpc/sys* offers functionality to interact with the operating system on the host machine. +*Exported Functions:* +* [Complete luci.sys library](http://luci.subsignal.org/api/luci/modules/luci.sys.html) +* [Complete luci.sys.group library](http://luci.subsignal.org/api/luci/modules/luci.sys.group.html) with prefix *group.* +* [Complete luci.sys.net library](http://luci.subsignal.org/api/luci/modules/luci.sys.net.html) with prefix *net.* +* [Complete luci.sys.process library](http://luci.subsignal.org/api/luci/modules/luci.sys.process.html) with prefix *process.* +* [Complete luci.sys.user library](http://luci.subsignal.org/api/luci/modules/luci.sys.user.html) with prefix *user.* +* [Complete luci.sys.wifi library](http://luci.subsignal.org/api/luci/modules/luci.sys.wifi.html) with prefix *wifi.* + +## ipkg +The IPKG library */rpc/ipkg* offers functionality to interact with the package manager (IPKG or OPKG) on the host machine. +*Exported Functions:* +* [Complete luci.model.ipkg library](http://luci.subsignal.org/api/luci/modules/luci.model.ipkg.html) |