diff options
Diffstat (limited to 'auth')
| -rw-r--r-- | auth/.gitignore | 3 | ||||
| -rw-r--r-- | auth/LICENSE | 503 | ||||
| -rw-r--r-- | auth/README.md | 66 | ||||
| -rw-r--r-- | auth/examples/full_example.c | 66 | ||||
| -rw-r--r-- | auth/examples/full_example.js | 38 | ||||
| -rw-r--r-- | auth/examples/meson.build | 18 | ||||
| -rw-r--r-- | auth/examples/simple_example.c | 31 | ||||
| -rw-r--r-- | auth/examples/simple_example.js | 9 | ||||
| -rw-r--r-- | auth/flake.lock | 27 | ||||
| -rw-r--r-- | auth/flake.nix | 42 | ||||
| -rw-r--r-- | auth/include/astal-auth.h | 32 | ||||
| -rw-r--r-- | auth/include/meson.build | 4 | ||||
| -rw-r--r-- | auth/meson.build | 33 | ||||
| -rw-r--r-- | auth/meson_options.txt | 3 | ||||
| -rw-r--r-- | auth/pam/astal-auth | 5 | ||||
| -rw-r--r-- | auth/src/astal-auth.c | 153 | ||||
| -rw-r--r-- | auth/src/meson.build | 65 | ||||
| -rw-r--r-- | auth/src/pam.c | 524 | ||||
| -rw-r--r-- | auth/version | 1 |
19 files changed, 0 insertions, 1623 deletions
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Requires `-Dintrospection=true` -* `-Dexamples` (default: `false`): build examples - -```sh -# Clone the repository -git clone https://github.com/astal-sh/libastal-auth -cd libastal-auth - -# Setup and build -meson setup build -meson compile -C build - -# Install -meson install -C build -``` - -> [!NOTE] -> on NixOS you will have to add `security.pam.services.astal-auth = {}` in `configuration.nix` - -## Usage -This library can be used from any language supporting GObject Introspection. -Have a look at the [examples](examples) for how it can be used in C and gjs. - -The authentication is done asynchronously in its own thread, therefore the GLib mainloop is required to run. -This is already given in all gtk application, but has to be started manually in some cases like in the small examples in this repo. - -Until there are better docs, please refer to the [auth.h](include/auth.h) file for detailed usage. - -For simple authentication using only a password, using the `Pam.authenticate()` method is recommended. -Look at the simple examples for how to use it. - -There is also a way to get access to the pam conversation, to allow for a more complex authentication process, like using multiple factor authentication. -The full examples show how this can be achieved. -Generally it can be used like this: - -1. create the Pam object. -2. set username and service if so required. It has sane defaults, so in most cases you can skip this. -3. connect to the signals - - `auth-prompt-hidden`: is emitted when user input is required, and the input should be hidden (eg, passwords) - - `auth-prompt-visible`: is emitted when user input is required, and the input should be visible (eg, OTP) - - `auth-info`: an information message should be displayed (eg, tell the user to touch his security key) - - `auth-error`: an error message should be displayed - - `sucess`: emitted on successful authentication - - `fail`: emitted on failed authentication - - all signals except the `success` signal have a string containing the message as a parameter. - After an `auth-*` signal is emitted, it hs to be responded with exactly one `pam.supply_secret(secret)` call. The secret is a string containing the user input. For `auth-info` and `auth-error` it can be `NULL`. - Not connecting those signals, is equivalent to calling `pam.supply_secret(NULL)` immediately after the signal is emitted. -4. start authentication process using `Pam.start_authentication()`. This function will return whether the authentication was started or not. -5. it is possible to reuse the same Pam object for multiple sequential authentication attempts. Just call `pam.start_authentication()` again after the `success` or `fail` signal was emitted. - diff --git a/auth/examples/full_example.c b/auth/examples/full_example.c deleted file mode 100644 index a20c02b..0000000 --- a/auth/examples/full_example.c +++ /dev/null @@ -1,66 +0,0 @@ -#include <bsd/readpassphrase.h> - -#include "astal-auth.h" - -GMainLoop *loop; - -static void authenticate(AstalAuthPam *pam) { - if (!astal_auth_pam_start_authenticate(pam)) { - g_print("could not start authentication process\n"); - g_object_unref(pam); - g_main_loop_quit(loop); - } -} - -static void on_visible(AstalAuthPam *pam, const gchar *data) { - gchar passbuf[1024]; - readpassphrase(data, passbuf, sizeof(passbuf), RPP_ECHO_ON); - astal_auth_pam_supply_secret(pam, passbuf); -} - -static void on_hidden(AstalAuthPam *pam, const gchar *data) { - gchar passbuf[1024]; - readpassphrase(data, passbuf, sizeof(passbuf), RPP_ECHO_OFF); - astal_auth_pam_supply_secret(pam, passbuf); -} - -static void on_info(AstalAuthPam *pam, const gchar *data) { - g_print("info: %s\n", data); - astal_auth_pam_supply_secret(pam, NULL); -} - -static void on_error(AstalAuthPam *pam, const gchar *data) { - g_print("error: %s\n", data); - astal_auth_pam_supply_secret(pam, NULL); -} - -static void on_success(AstalAuthPam *pam) { - g_print("success\n"); - g_object_unref(pam); - g_main_loop_quit(loop); -} - -static void on_fail(AstalAuthPam *pam, const gchar *data) { - g_print("fail: %s\n", data); - authenticate(pam); -} - -int main(void) { - GMainContext *loopctx = NULL; - - loop = g_main_loop_new(loopctx, FALSE); - - AstalAuthPam *pam = g_object_new(ASTAL_AUTH_TYPE_PAM, NULL); - - g_signal_connect(pam, "auth-prompt-visible", G_CALLBACK(on_visible), NULL); - g_signal_connect(pam, "auth-prompt-hidden", G_CALLBACK(on_hidden), NULL); - g_signal_connect(pam, "auth-info", G_CALLBACK(on_info), NULL); - g_signal_connect(pam, "auth-error", G_CALLBACK(on_error), NULL); - - g_signal_connect(pam, "success", G_CALLBACK(on_success), NULL); - g_signal_connect(pam, "fail", G_CALLBACK(on_fail), NULL); - - authenticate(pam); - - g_main_loop_run(loop); -} diff --git a/auth/examples/full_example.js b/auth/examples/full_example.js deleted file mode 100644 index 7359784..0000000 --- a/auth/examples/full_example.js +++ /dev/null @@ -1,38 +0,0 @@ -#!/usr/bin/env -S gjs -m - -import Auth from "gi://AstalAuth"; -import GLib from "gi://GLib"; - -const loop = GLib.MainLoop.new(null, false); - -const pam = new Auth.Pam(); -pam.connect("auth-prompt-visible", (p, msg) => { - print(msg); - p.supply_secret(""); -}); -pam.connect("auth-prompt-hidden", (p, msg) => { - print(msg); - p.supply_secret("password"); -}); -pam.connect("auth-info", (p, msg) => { - print(msg); - p.supply_secret(""); -}); -pam.connect("auth-error", (p, msg) => { - print(msg); - p.supply_secret(""); -}); - -pam.connect("success", p => { - print("authentication sucessful"); - loop.quit(); -}); -pam.connect("fail", (p, msg) => { - print(msg); - loop.quit(); -}); - -pam.start_authenticate(); - -loop.runAsync() - diff --git a/auth/examples/meson.build b/auth/examples/meson.build deleted file mode 100644 index cf23d3f..0000000 --- a/auth/examples/meson.build +++ /dev/null @@ -1,18 +0,0 @@ - -deps_example = [ - dependency('gobject-2.0'), - dependency('libbsd'), - libastal_auth -] - -astal_auth_full_exmple = executable( - 'astal_auth_full_example', - files('full_example.c'), - dependencies : deps_example, - install : false) - -astal_auth_simple_example = executable( - 'astal_auth_simple_example', - files('simple_example.c'), - dependencies : deps_example, - install : false) diff --git a/auth/examples/simple_example.c b/auth/examples/simple_example.c deleted file mode 100644 index d00bad2..0000000 --- a/auth/examples/simple_example.c +++ /dev/null @@ -1,31 +0,0 @@ -#include <bsd/readpassphrase.h> - -#include "astal-auth.h" - -GMainLoop *loop; - -void ready_callback(AstalAuthPam *pam, GAsyncResult *res, gpointer user_data) { - GError *error = NULL; - astal_auth_pam_authenticate_finish(res, &error); - if (error == NULL) { - g_print("success\n"); - } else { - g_print("failure: %s\n", error->message); - g_error_free(error); - } - - g_main_loop_quit(loop); -} - -int main(void) { - GMainContext *loopctx = NULL; - loop = g_main_loop_new(loopctx, FALSE); - - gchar *passbuf = calloc(1024, sizeof(gchar)); - readpassphrase("Password: ", passbuf, 1024, RPP_ECHO_OFF); - astal_auth_pam_authenticate(passbuf, (GAsyncReadyCallback)ready_callback, NULL); - g_free(passbuf); - - g_main_loop_run(loop); - exit(EXIT_SUCCESS); -} diff --git a/auth/examples/simple_example.js b/auth/examples/simple_example.js deleted file mode 100644 index 2bf38c1..0000000 --- a/auth/examples/simple_example.js +++ /dev/null @@ -1,9 +0,0 @@ -#!/usr/bin/env -S gjs -m -import Auth from "gi://AstalAuth"; -import Gio from "gi://Gio"; - -Gio._promisify(Auth.Pam, "authenticate"); - -await Auth.Pam.authenticate("password") - .then(_ => print("authentication sucessful")) - .catch(logError);
\ No newline at end of file diff --git a/auth/flake.lock b/auth/flake.lock deleted file mode 100644 index 13f566b..0000000 --- a/auth/flake.lock +++ /dev/null @@ -1,27 +0,0 @@ -{ - "nodes": { - "nixpkgs": { - "locked": { - "lastModified": 1716137900, - "narHash": "sha256-sowPU+tLQv8GlqtVtsXioTKeaQvlMz/pefcdwg8MvfM=", - "owner": "nixos", - "repo": "nixpkgs", - "rev": "6c0b7a92c30122196a761b440ac0d46d3d9954f1", - "type": "github" - }, - "original": { - "owner": "nixos", - "ref": "nixos-unstable", - "repo": "nixpkgs", - "type": "github" - } - }, - "root": { - "inputs": { - "nixpkgs": "nixpkgs" - } - } - }, - "root": "root", - "version": 7 -} diff --git a/auth/flake.nix b/auth/flake.nix deleted file mode 100644 index 39b0289..0000000 --- a/auth/flake.nix +++ /dev/null @@ -1,42 +0,0 @@ -{ - description = "Authentication library and cli tool"; - - inputs.nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable"; - - outputs = { self, nixpkgs }: - let - version = builtins.replaceStrings ["\n"] [""] (builtins.readFile ./version); - system = "x86_64-linux"; - pkgs = import nixpkgs { inherit system; }; - - nativeBuildInputs = with pkgs; [ - gobject-introspection - meson - pkg-config - ninja - vala - ]; - - buildInputs = with pkgs; [ - glib - pam - ]; - in { - packages.${system} = rec { - default = auth; - auth = pkgs.stdenv.mkDerivation { - inherit nativeBuildInputs buildInputs; - pname = "astal-auth"; - version = version; - src = ./.; - outputs = ["out" "dev"]; - }; - }; - - devShells.${system} = { - default = pkgs.mkShell { - inherit nativeBuildInputs buildInputs; - }; - }; - }; -} diff --git a/auth/include/astal-auth.h b/auth/include/astal-auth.h deleted file mode 100644 index a3073ff..0000000 --- a/auth/include/astal-auth.h +++ /dev/null @@ -1,32 +0,0 @@ -#ifndef ASTAL_AUTH_PAM_H -#define ASTAL_AUTH_PAM_H - -#include <gio/gio.h> -#include <glib-object.h> - -G_BEGIN_DECLS - -#define ASTAL_AUTH_TYPE_PAM (astal_auth_pam_get_type()) - -G_DECLARE_FINAL_TYPE(AstalAuthPam, astal_auth_pam, ASTAL_AUTH, PAM, GObject) - -void astal_auth_pam_set_username(AstalAuthPam *self, const gchar *username); - -const gchar *astal_auth_pam_get_username(AstalAuthPam *self); - -void astal_auth_pam_set_service(AstalAuthPam *self, const gchar *service); - -const gchar *astal_auth_pam_get_service(AstalAuthPam *self); - -gboolean astal_auth_pam_start_authenticate(AstalAuthPam *self); - -void astal_auth_pam_supply_secret(AstalAuthPam *self, const gchar *secret); - -gboolean astal_auth_pam_authenticate(const gchar *password, GAsyncReadyCallback result_callback, - gpointer user_data); - -gssize astal_auth_pam_authenticate_finish(GAsyncResult *res, GError **error); - -G_END_DECLS - -#endif // !ASTAL_AUTH_PAM_H diff --git a/auth/include/meson.build b/auth/include/meson.build deleted file mode 100644 index 0575998..0000000 --- a/auth/include/meson.build +++ /dev/null @@ -1,4 +0,0 @@ -astal_auth_inc = include_directories('.') -astal_auth_headers = files('astal-auth.h') - -install_headers('astal-auth.h') diff --git a/auth/meson.build b/auth/meson.build deleted file mode 100644 index e9facb1..0000000 --- a/auth/meson.build +++ /dev/null @@ -1,33 +0,0 @@ -project('astal_auth', - 'c', - version : run_command('cat', join_paths(meson.project_source_root(), 'version')).stdout().strip(), - default_options : [ - 'c_std=gnu11', - 'warning_level=3', - 'prefix=/usr' - ] -) - -add_project_arguments( - ['-Wno-pedantic'], - language : 'c') - -version_split = meson.project_version().split('.') -lib_so_version = version_split[0] + '.' + version_split[1] - -pkg_config = import('pkgconfig') -gnome = import('gnome') - -subdir('include') -subdir('src') - - -if get_option('examples') - subdir('examples') -endif - - -install_data( - 'pam/astal-auth', - install_dir : get_option('sysconfdir') / 'pam.d' -) diff --git a/auth/meson_options.txt b/auth/meson_options.txt deleted file mode 100644 index e28447e..0000000 --- a/auth/meson_options.txt +++ /dev/null @@ -1,3 +0,0 @@ -option('examples', type : 'boolean', value : false, description : 'Build example applications') -option('introspection', type : 'boolean', value : true, description : 'Build gobject-introspection data') -option('vapi', type : 'boolean', value : true, description : 'Generate vapi data (needs vapigen & introspection option)') diff --git a/auth/pam/astal-auth b/auth/pam/astal-auth deleted file mode 100644 index 41f79d7..0000000 --- a/auth/pam/astal-auth +++ /dev/null @@ -1,5 +0,0 @@ -# PAM configuration file for the astal-auth library. -# By default, it only includes the 'login' -# configuration file (see /etc/pam.d/login) - -auth include login diff --git a/auth/src/astal-auth.c b/auth/src/astal-auth.c deleted file mode 100644 index 1ac2bd7..0000000 --- a/auth/src/astal-auth.c +++ /dev/null @@ -1,153 +0,0 @@ -#include "astal-auth.h" - -#include <getopt.h> -#include <stdio.h> -#include <termios.h> - -GMainLoop *loop; - -static void cleanup_and_quit(AstalAuthPam *pam, int status) { - g_object_unref(pam); - g_main_loop_quit(loop); - exit(status); -} - -static char *read_secret(const char *msg, gboolean echo) { - struct termios oldt, newt; - char *password = NULL; - size_t size = 0; - ssize_t len; - - if (tcgetattr(STDIN_FILENO, &oldt) != 0) { - return NULL; - } - newt = oldt; - if (echo) { - newt.c_lflag |= ECHO; - } else { - newt.c_lflag &= ~(ECHO); - } - if (tcsetattr(STDIN_FILENO, TCSANOW, &newt) != 0) { - return NULL; - } - g_print("%s", msg); - if ((len = getline(&password, &size, stdin)) == -1) { - g_free(password); - return NULL; - } - - if (password[len - 1] == '\n') { - password[len - 1] = '\0'; - } - - printf("\n"); - - if (tcsetattr(STDIN_FILENO, TCSANOW, &oldt) != 0) { - return NULL; - } - - return password; -} - -static void authenticate(AstalAuthPam *pam) { - static int attempts = 0; - if (attempts >= 3) { - g_print("%d failed attempts.\n", attempts); - cleanup_and_quit(pam, EXIT_FAILURE); - } - if (!astal_auth_pam_start_authenticate(pam)) { - g_print("could not start authentication process\n"); - cleanup_and_quit(pam, EXIT_FAILURE); - } - attempts++; -} - -static void on_visible(AstalAuthPam *pam, const gchar *data) { - char *secret = read_secret(data, TRUE); - if (secret == NULL) cleanup_and_quit(pam, EXIT_FAILURE); - astal_auth_pam_supply_secret(pam, secret); - g_free(secret); -} - -static void on_hidden(AstalAuthPam *pam, const gchar *data, gchar *secret) { - if (!secret) secret = read_secret(data, FALSE); - if (secret == NULL) cleanup_and_quit(pam, EXIT_FAILURE); - astal_auth_pam_supply_secret(pam, secret); - g_free(secret); -} - -static void on_info(AstalAuthPam *pam, const gchar *data) { - g_print("info: %s\n", data); - astal_auth_pam_supply_secret(pam, NULL); -} - -static void on_error(AstalAuthPam *pam, const gchar *data) { - g_print("error: %s\n", data); - astal_auth_pam_supply_secret(pam, NULL); -} - -static void on_success(AstalAuthPam *pam) { - g_print("Authentication successful\n"); - cleanup_and_quit(pam, EXIT_SUCCESS); -} - -static void on_fail(AstalAuthPam *pam, const gchar *data, gboolean retry) { - g_print("%s\n", data); - if (retry) - authenticate(pam); - else - cleanup_and_quit(pam, EXIT_FAILURE); -} - -int main(int argc, char **argv) { - char *password = NULL; - char *username = NULL; - char *service = NULL; - - int opt; - const char *optstring = "p:u:s:"; - - static struct option long_options[] = {{"password", required_argument, NULL, 'p'}, - {"username", required_argument, NULL, 'u'}, - {"service", required_argument, NULL, 's'}, - {NULL, 0, NULL, 0}}; - - while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) { - switch (opt) { - case 'p': - password = optarg; - break; - case 'u': - username = optarg; - break; - case 's': - service = optarg; - break; - default: - g_print("Usage: %s [-p password] [-u username] [-s service]\n", argv[0]); - exit(EXIT_FAILURE); - } - } - - loop = g_main_loop_new(NULL, FALSE); - - AstalAuthPam *pam = g_object_new(ASTAL_AUTH_TYPE_PAM, NULL); - - if (username) astal_auth_pam_set_username(pam, username); - if (service) astal_auth_pam_set_service(pam, service); - if (password) { - g_signal_connect(pam, "fail", G_CALLBACK(on_fail), (void *)FALSE); - } else { - g_signal_connect(pam, "auth-prompt-visible", G_CALLBACK(on_visible), NULL); - g_signal_connect(pam, "auth-info", G_CALLBACK(on_info), NULL); - g_signal_connect(pam, "auth-error", G_CALLBACK(on_error), NULL); - g_signal_connect(pam, "fail", G_CALLBACK(on_fail), (void *)TRUE); - } - - g_signal_connect(pam, "auth-prompt-hidden", G_CALLBACK(on_hidden), g_strdup(password)); - g_signal_connect(pam, "success", G_CALLBACK(on_success), NULL); - - authenticate(pam); - - g_main_loop_run(loop); -} diff --git a/auth/src/meson.build b/auth/src/meson.build deleted file mode 100644 index 6a34ae0..0000000 --- a/auth/src/meson.build +++ /dev/null @@ -1,65 +0,0 @@ -srcs = files( - 'pam.c', -) - -deps = [ - dependency('gobject-2.0'), - dependency('gio-2.0'), - dependency('pam') -] - -astal_auth_lib = library( - 'astal-auth', - sources : srcs, - include_directories : astal_auth_inc, - dependencies : deps, - version : meson.project_version(), - install : true -) - -libastal_auth = declare_dependency( - link_with : astal_auth_lib, - include_directories : astal_auth_inc) - -astal_auth_executable = executable( - 'astal-auth', - files('astal-auth.c'), - dependencies : [ - dependency('gobject-2.0'), - libastal_auth - ], - install : true) - -pkg_config_name = 'astal-auth-' + lib_so_version - -if get_option('introspection') - gir = gnome.generate_gir( - astal_auth_lib, - sources : srcs + astal_auth_headers, - nsversion : '0.1', - namespace : 'AstalAuth', - symbol_prefix : 'astal_auth', - identifier_prefix : 'AstalAuth', - includes : ['GObject-2.0', 'Gio-2.0'], - header : 'astal-auth.h', - export_packages : pkg_config_name, - install : true - ) - - if get_option('vapi') - gnome.generate_vapi( - pkg_config_name, - sources : [gir[0]], - packages : ['gobject-2.0', 'gio-2.0'], - install : true) - endif -endif - -pkg_config.generate( - name : 'astal-auth', - version : meson.project_version(), - libraries : [astal_auth_lib], - filebase : pkg_config_name, - subdirs : 'astal', - description : 'astal authentication module', - url : 'https://github.com/astal-sh/auth') diff --git a/auth/src/pam.c b/auth/src/pam.c deleted file mode 100644 index d0afec4..0000000 --- a/auth/src/pam.c +++ /dev/null @@ -1,524 +0,0 @@ -#include <pwd.h> -#include <security/_pam_types.h> -#include <security/pam_appl.h> - -#include "astal-auth.h" - -struct _AstalAuthPam { - GObject parent_instance; - - gchar *username; - gchar *service; -}; - -typedef struct { - GTask *task; - GMainContext *context; - GMutex data_mutex; - GCond data_cond; - - gchar *secret; - gboolean secret_set; -} AstalAuthPamPrivate; - -typedef struct { - AstalAuthPam *pam; - guint signal_id; - gchar *msg; -} AstalAuthPamSignalEmitData; - -static void astal_auth_pam_signal_emit_data_free(AstalAuthPamSignalEmitData *data) { - g_free(data->msg); - g_free(data); -} - -typedef enum { - ASTAL_AUTH_PAM_SIGNAL_PROMPT_VISIBLE, - ASTAL_AUTH_PAM_SIGNAL_PROMPT_HIDDEN, - ASTAL_AUTH_PAM_SIGNAL_INFO, - ASTAL_AUTH_PAM_SIGNAL_ERROR, - ASTAL_AUTH_PAM_SIGNAL_SUCCESS, - ASTAL_AUTH_PAM_SIGNAL_FAIL, - ASTAL_AUTH_PAM_N_SIGNALS -} AstalAuthPamSignals; - -typedef enum { - ASTAL_AUTH_PAM_PROP_USERNAME = 1, - ASTAL_AUTH_PAM_PROP_SERVICE, - ASTAL_AUTH_PAM_N_PROPERTIES -} AstalAuthPamProperties; - -static guint astal_auth_pam_signals[ASTAL_AUTH_PAM_N_SIGNALS] = { - 0, -}; -static GParamSpec *astal_auth_pam_properties[ASTAL_AUTH_PAM_N_PROPERTIES] = { - NULL, -}; - -G_DEFINE_TYPE_WITH_PRIVATE(AstalAuthPam, astal_auth_pam, G_TYPE_OBJECT); - -/** - * - * AstalAuthPam - * - * For simple authentication using only a password, using the [[email protected]] - * method is recommended. Look at the simple examples for how to use it. - * - * There is also a way to get access to the pam conversation, to allow for a more complex - * authentication process, like using multiple factor authentication. Generally it can be used like - * this: - * - * 1. create the Pam object. - * 2. set username and service if so required. It has sane defaults, so in most cases you can skip - * this. - * 3. connect to the signals. - * After an `auth-*` signal is emitted, it has to be responded with exactly one - * [[email protected]_secret] call. The secret is a string containing the user input. For - * [auth-info][[email protected]::auth-info:] and [auth-error][[email protected]::auth-error:] - * it should be `NULL`. Not connecting those signals, is equivalent to calling - * [[email protected]_secret] with `NULL` immediately after the signal is emitted. - * 4. start authentication process using [[email protected]_authenticate]. - * 5. it is possible to reuse the same Pam object for multiple sequential authentication attempts. - * Just call [[email protected]_authenticate] again after the `success` or `fail` signal - * was emitted. - * - */ - -/** - * astal_auth_pam_set_username - * @self: a AstalAuthPam object - * @username: the new username - * - * Sets the username to be used for authentication. This must be set to - * before calling start_authenticate. - * Changing it afterwards has no effect on the authentication process. - * - * Defaults to the owner of the process. - * - */ -void astal_auth_pam_set_username(AstalAuthPam *self, const gchar *username) { - g_return_if_fail(ASTAL_AUTH_IS_PAM(self)); - g_return_if_fail(username != NULL); - - g_free(self->username); - self->username = g_strdup(username); - g_object_notify(G_OBJECT(self), "username"); -} - -/** - * astal_auth_pam_supply_secret - * @self: a AstalAuthPam Object - * @secret: (nullable): the secret to be provided to pam. Can be NULL. - * - * provides pam with a secret. This method must be called exactly once after a - * auth-* signal is emitted. - */ -void astal_auth_pam_supply_secret(AstalAuthPam *self, const gchar *secret) { - g_return_if_fail(ASTAL_AUTH_IS_PAM(self)); - AstalAuthPamPrivate *priv = astal_auth_pam_get_instance_private(self); - - g_mutex_lock(&priv->data_mutex); - g_free(priv->secret); - priv->secret = g_strdup(secret); - priv->secret_set = TRUE; - g_cond_signal(&priv->data_cond); - g_mutex_unlock(&priv->data_mutex); -} - -/** - * astal_auth_pam_set_service - * @self: a AstalAuthPam object - * @service: the pam service used for authentication - * - * Sets the service to be used for authentication. This must be set to - * before calling start_authenticate. - * Changing it afterwards has no effect on the authentication process. - * - * Defaults to `astal-auth`. - * - */ -void astal_auth_pam_set_service(AstalAuthPam *self, const gchar *service) { - g_return_if_fail(ASTAL_AUTH_IS_PAM(self)); - g_return_if_fail(service != NULL); - - g_free(self->service); - self->service = g_strdup(service); - g_object_notify(G_OBJECT(self), "service"); -} - -/** - * astal_auth_pam_get_username - * @self: a AstalAuthPam object - * - * Fetches the username from AsalAuthPam object. - * - * Returns: the username of the AsalAuthPam object. This string is - * owned by the object and must not be modified or freed. - */ - -const gchar *astal_auth_pam_get_username(AstalAuthPam *self) { - g_return_val_if_fail(ASTAL_AUTH_IS_PAM(self), NULL); - return self->username; -} - -/** - * astal_auth_pam_get_service - * @self: a AstalAuthPam - * - * Fetches the service from AsalAuthPam object. - * - * Returns: the service of the AsalAuthPam object. This string is - * owned by the object and must not be modified or freed. - */ -const gchar *astal_auth_pam_get_service(AstalAuthPam *self) { - g_return_val_if_fail(ASTAL_AUTH_IS_PAM(self), NULL); - return self->service; -} - -static void astal_auth_pam_set_property(GObject *object, guint property_id, const GValue *value, - GParamSpec *pspec) { - AstalAuthPam *self = ASTAL_AUTH_PAM(object); - - switch (property_id) { - case ASTAL_AUTH_PAM_PROP_USERNAME: - astal_auth_pam_set_username(self, g_value_get_string(value)); - break; - case ASTAL_AUTH_PAM_PROP_SERVICE: - astal_auth_pam_set_service(self, g_value_get_string(value)); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec); - break; - } -} - -static void astal_auth_pam_get_property(GObject *object, guint property_id, GValue *value, - GParamSpec *pspec) { - AstalAuthPam *self = ASTAL_AUTH_PAM(object); - - switch (property_id) { - case ASTAL_AUTH_PAM_PROP_USERNAME: - g_value_set_string(value, self->username); - break; - case ASTAL_AUTH_PAM_PROP_SERVICE: - g_value_set_string(value, self->service); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec); - break; - } -} - -static void astal_auth_pam_callback(GObject *object, GAsyncResult *res, gpointer user_data) { - AstalAuthPam *self = ASTAL_AUTH_PAM(object); - AstalAuthPamPrivate *priv = astal_auth_pam_get_instance_private(self); - - GTask *task = g_steal_pointer(&priv->task); - - GError *error = NULL; - g_task_propagate_int(task, &error); - - if (error == NULL) { - g_signal_emit(self, astal_auth_pam_signals[ASTAL_AUTH_PAM_SIGNAL_SUCCESS], 0); - } else { - g_signal_emit(self, astal_auth_pam_signals[ASTAL_AUTH_PAM_SIGNAL_FAIL], 0, error->message); - g_error_free(error); - } - g_object_unref(task); -} - -static gboolean astal_auth_pam_emit_signal_in_context(gpointer user_data) { - AstalAuthPamSignalEmitData *data = user_data; - g_signal_emit(data->pam, data->signal_id, 0, data->msg); - return G_SOURCE_REMOVE; -} - -static void astal_auth_pam_emit_signal(AstalAuthPam *pam, guint signal, const gchar *msg) { - GSource *emit_source; - AstalAuthPamSignalEmitData *data; - - data = g_new0(AstalAuthPamSignalEmitData, 1); - data->pam = pam; - data->signal_id = astal_auth_pam_signals[signal]; - data->msg = g_strdup(msg); - - emit_source = g_idle_source_new(); - g_source_set_callback(emit_source, astal_auth_pam_emit_signal_in_context, data, - (GDestroyNotify)astal_auth_pam_signal_emit_data_free); - g_source_set_priority(emit_source, G_PRIORITY_DEFAULT); - g_source_attach(emit_source, - ((AstalAuthPamPrivate *)astal_auth_pam_get_instance_private(pam))->context); - g_source_unref(emit_source); -} - -int astal_auth_pam_handle_conversation(int num_msg, const struct pam_message **msg, - struct pam_response **resp, void *appdata_ptr) { - AstalAuthPam *self = appdata_ptr; - AstalAuthPamPrivate *priv = astal_auth_pam_get_instance_private(self); - - struct pam_response *replies = NULL; - if (num_msg <= 0 || num_msg > PAM_MAX_NUM_MSG) { - return PAM_CONV_ERR; - } - replies = (struct pam_response *)calloc(num_msg, sizeof(struct pam_response)); - if (replies == NULL) { - return PAM_BUF_ERR; - } - for (int i = 0; i < num_msg; ++i) { - guint signal; - switch (msg[i]->msg_style) { - case PAM_PROMPT_ECHO_OFF: - signal = ASTAL_AUTH_PAM_SIGNAL_PROMPT_HIDDEN; - break; - case PAM_PROMPT_ECHO_ON: - signal = ASTAL_AUTH_PAM_SIGNAL_PROMPT_VISIBLE; - break; - case PAM_ERROR_MSG: - signal = ASTAL_AUTH_PAM_SIGNAL_ERROR; - ; - break; - case PAM_TEXT_INFO: - signal = ASTAL_AUTH_PAM_SIGNAL_INFO; - break; - default: - g_free(replies); - return PAM_CONV_ERR; - break; - } - guint signal_id = astal_auth_pam_signals[signal]; - if (g_signal_has_handler_pending(self, signal_id, 0, FALSE)) { - astal_auth_pam_emit_signal(self, signal, msg[i]->msg); - g_mutex_lock(&priv->data_mutex); - while (!priv->secret_set) { - g_cond_wait(&priv->data_cond, &priv->data_mutex); - } - replies[i].resp_retcode = 0; - replies[i].resp = g_strdup(priv->secret); - g_free(priv->secret); - priv->secret = NULL; - priv->secret_set = FALSE; - g_mutex_unlock(&priv->data_mutex); - } - } - *resp = replies; - return PAM_SUCCESS; -} - -static void astal_auth_pam_thread(GTask *task, gpointer object, gpointer task_data, - GCancellable *cancellable) { - AstalAuthPam *self = g_task_get_source_object(task); - - pam_handle_t *pamh = NULL; - const struct pam_conv conv = { - .conv = astal_auth_pam_handle_conversation, - .appdata_ptr = self, - }; - - int retval; - retval = pam_start(self->service, self->username, &conv, &pamh); - if (retval == PAM_SUCCESS) { - retval = pam_authenticate(pamh, 0); - pam_end(pamh, retval); - } - if (retval != PAM_SUCCESS) { - g_task_return_new_error(task, G_IO_ERROR, G_IO_ERROR_FAILED, "%s", - pam_strerror(pamh, retval)); - } else { - g_task_return_int(task, retval); - } -} - -gboolean astal_auth_pam_start_authenticate_with_callback(AstalAuthPam *self, - GAsyncReadyCallback result_callback, - gpointer user_data) { - g_return_val_if_fail(ASTAL_AUTH_IS_PAM(self), FALSE); - AstalAuthPamPrivate *priv = astal_auth_pam_get_instance_private(self); - g_return_val_if_fail(priv->task == NULL, FALSE); - - priv->task = g_task_new(self, NULL, result_callback, user_data); - g_task_set_priority(priv->task, 0); - g_task_set_name(priv->task, "[AstalAuth] authenticate"); - g_task_run_in_thread(priv->task, astal_auth_pam_thread); - - return TRUE; -} - -/** - * astal_auth_pam_start_authenticate: - * @self: a AstalAuthPam Object - * - * starts a new authentication process using the PAM (Pluggable Authentication Modules) system. - * Note that this will cancel an already running authentication process - * associated with this AstalAuthPam object. - */ -gboolean astal_auth_pam_start_authenticate(AstalAuthPam *self) { - return astal_auth_pam_start_authenticate_with_callback( - self, (GAsyncReadyCallback)astal_auth_pam_callback, NULL); -} - -static void astal_auth_pam_on_hidden(AstalAuthPam *pam, const gchar *msg, gchar *password) { - astal_auth_pam_supply_secret(pam, password); - g_free(password); -} - -/** - * astal_auth_pam_authenticate: - * @password: the password to be authenticated - * @result_callback: (scope async) (closure user_data): a GAsyncReadyCallback - * to call when the request is satisfied - * @user_data: the data to pass to callback function - * - * Requests authentication of the provided password using the PAM (Pluggable Authentication Modules) - * system. - */ -gboolean astal_auth_pam_authenticate(const gchar *password, GAsyncReadyCallback result_callback, - gpointer user_data) { - AstalAuthPam *pam = g_object_new(ASTAL_AUTH_TYPE_PAM, NULL); - g_signal_connect(pam, "auth-prompt-hidden", G_CALLBACK(astal_auth_pam_on_hidden), - (void *)g_strdup(password)); - - gboolean started = - astal_auth_pam_start_authenticate_with_callback(pam, result_callback, user_data); - g_object_unref(pam); - return started; -} - -gssize astal_auth_pam_authenticate_finish(GAsyncResult *res, GError **error) { - return g_task_propagate_int(G_TASK(res), error); -} - -static void astal_auth_pam_init(AstalAuthPam *self) { - AstalAuthPamPrivate *priv = astal_auth_pam_get_instance_private(self); - - priv->secret = NULL; - - g_cond_init(&priv->data_cond); - g_mutex_init(&priv->data_mutex); - - priv->context = g_main_context_get_thread_default(); -} - -static void astal_auth_pam_finalize(GObject *gobject) { - AstalAuthPam *self = ASTAL_AUTH_PAM(gobject); - AstalAuthPamPrivate *priv = astal_auth_pam_get_instance_private(self); - - g_free(self->username); - g_free(self->service); - - g_free(priv->secret); - - g_cond_clear(&priv->data_cond); - g_mutex_clear(&priv->data_mutex); - - G_OBJECT_CLASS(astal_auth_pam_parent_class)->finalize(gobject); -} - -static void astal_auth_pam_class_init(AstalAuthPamClass *class) { - GObjectClass *object_class = G_OBJECT_CLASS(class); - - object_class->get_property = astal_auth_pam_get_property; - object_class->set_property = astal_auth_pam_set_property; - - object_class->finalize = astal_auth_pam_finalize; - - struct passwd *passwd = getpwuid(getuid()); - - /** - * AstalAuthPam:username: - * - * The username used for authentication. - * Changing the value of this property has no affect on an already started authentication - * process. - * - * Defaults to the user that owns this process. - */ - astal_auth_pam_properties[ASTAL_AUTH_PAM_PROP_USERNAME] = - g_param_spec_string("username", "username", "username used for authentication", - passwd->pw_name, G_PARAM_CONSTRUCT | G_PARAM_READWRITE); - /** - * AstalAuthPam:service: - * - * The pam service used for authentication. - * Changing the value of this property has no affect on an already started authentication - * process. - * - * Defaults to the astal-auth pam service. - */ - astal_auth_pam_properties[ASTAL_AUTH_PAM_PROP_SERVICE] = - g_param_spec_string("service", "service", "the pam service to use", "astal-auth", - G_PARAM_CONSTRUCT | G_PARAM_READWRITE); - - g_object_class_install_properties(object_class, ASTAL_AUTH_PAM_N_PROPERTIES, - astal_auth_pam_properties); - /** - * AstalAuthPam::auth-prompt-visible: - * @pam: the object which received the signal. - * @msg: the prompt to be shown to the user - * - * This signal is emitted when user input is required. The input should be visible - * when entered (e.g., for One-Time Passwords (OTP)). - * - * This signal has to be matched with exaclty one supply_secret call. - */ - astal_auth_pam_signals[ASTAL_AUTH_PAM_SIGNAL_PROMPT_VISIBLE] = - g_signal_new("auth-prompt-visible", G_TYPE_FROM_CLASS(class), G_SIGNAL_RUN_FIRST, 0, NULL, - NULL, NULL, G_TYPE_NONE, 1, G_TYPE_STRING); - /** - * AstalAuthPam::auth-prompt-hidden: - * @pam: the object which received the signal. - * @msg: the prompt to be shown to the user - * - * This signal is emitted when user input is required. The input should be hidden - * when entered (e.g., for passwords). - * - * This signal has to be matched with exaclty one supply_secret call. - */ - astal_auth_pam_signals[ASTAL_AUTH_PAM_SIGNAL_PROMPT_HIDDEN] = - g_signal_new("auth-prompt-hidden", G_TYPE_FROM_CLASS(class), G_SIGNAL_RUN_FIRST, 0, NULL, - NULL, NULL, G_TYPE_NONE, 1, G_TYPE_STRING); - /** - * AstalAuthPam::auth-info: - * @pam: the object which received the signal. - * @msg: the info mssage to be shown to the user - * - * This signal is emitted when the user should receive an information (e.g., tell the user to - * touch a security key, or the remaining time pam has been locked after multiple failed - * attempts) - * - * This signal has to be matched with exaclty one supply_secret call. - */ - astal_auth_pam_signals[ASTAL_AUTH_PAM_SIGNAL_INFO] = - g_signal_new("auth-info", G_TYPE_FROM_CLASS(class), G_SIGNAL_RUN_FIRST, 0, NULL, NULL, NULL, - G_TYPE_NONE, 1, G_TYPE_STRING); - /** - * AstalAuthPam::auth-error: - * @pam: the object which received the signal. - * @msg: the error message - * - * This signal is emitted when an authentication error has occured. - * - * This signal has to be matched with exaclty one supply_secret call. - */ - astal_auth_pam_signals[ASTAL_AUTH_PAM_SIGNAL_ERROR] = - g_signal_new("auth-error", G_TYPE_FROM_CLASS(class), G_SIGNAL_RUN_FIRST, 0, NULL, NULL, - NULL, G_TYPE_NONE, 1, G_TYPE_STRING); - /** - * AstalAuthPam::success: - * @pam: the object which received the signal. - * - * This signal is emitted after successful authentication - */ - astal_auth_pam_signals[ASTAL_AUTH_PAM_SIGNAL_SUCCESS] = - g_signal_new("success", G_TYPE_FROM_CLASS(class), G_SIGNAL_RUN_FIRST, 0, NULL, NULL, NULL, - G_TYPE_NONE, 0); - /** - * AstalAuthPam::fail: - * @pam: the object which received the signal. - * @msg: the authentication failure message - * - * This signal is emitted when authentication failed. - */ - astal_auth_pam_signals[ASTAL_AUTH_PAM_SIGNAL_FAIL] = - g_signal_new("fail", G_TYPE_FROM_CLASS(class), G_SIGNAL_RUN_FIRST, 0, NULL, NULL, NULL, - G_TYPE_NONE, 1, G_TYPE_STRING); -} diff --git a/auth/version b/auth/version deleted file mode 100644 index 6e8bf73..0000000 --- a/auth/version +++ /dev/null @@ -1 +0,0 @@ -0.1.0 |