Initial commit

.gitattributes

@@ -0,0 +1,2 @@
+# Auto detect text files and perform LF normalization
+* text=auto

.gitignore

@@ -0,0 +1,23 @@
+/vendor/
+node_modules/
+npm-debug.log
+yarn-error.log
+
+# Laravel 4 specific
+bootstrap/compiled.php
+app/storage/
+
+# Laravel 5 & Lumen specific
+public/storage
+public/hot
+
+# Laravel 5 & Lumen specific with changed public path
+public_html/storage
+public_html/hot
+
+storage/*.key
+.env
+Homestead.yaml
+Homestead.json
+/.vagrant
+.phpunit.result.cache

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2023 Aditya Dharmawan Saputra
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1,2 @@
+# laravel-bard
+ A Laravel Package for Google Bard AI Chatbot

composer.json

@@ -0,0 +1,40 @@
+{
+    "name": "adityadees/laravel-bard",
+    "description": "A Laravel Package for Google Bard AI Chatbot",
+    "keyword": [
+        "google-bard",
+        "laravel",
+        "bard",
+        "bard-google",
+        "bard ai",
+        "bard chatbot"
+    ],
+    "type": "library",
+    "license": "MIT",
+    "autoload": {
+        "psr-4": {
+            "Adityadees\\LaravelBard\\": "src/"
+        }
+    },
+    "authors": [
+        {
+            "name": "Aditya Dharmawan Saputra",
+            "email": "[email protected]"
+        }
+    ],
+    "extra": {
+        "laravel": {
+            "providers": [
+                "AdityaDees\\LaravelBard\\LaravelBardServiceProvider"
+            ]
+        }
+    },
+    "require": {
+        "php": "^7|^8",
+        "illuminate/config": "^7|^8|^9|^10",
+        "illuminate/support": "^7|^8|^9|^10"
+    },
+    "config": {
+        "sort-packages": true
+    }
+}

config/bard-laravel.php

@@ -0,0 +1,14 @@
+<?php
+
+return [
+    /*
+    |--------------------------------------------------------------------------
+    | BARD_API
+    |--------------------------------------------------------------------------
+    |
+    | Using `__Secure-1PSID` inside
+    | Developer tools > Application > Cookies and find `__Secure-1PSID`
+    |
+    */
+    'bard_token' => env('BARD_TOKEN', ''),
+];

src/Exceptions/ErrorException.php

@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+namespace AdityaDees\LaravelBard\Exceptions;
+
+use Exception;
+
+class ErrorException extends Exception
+{
+    public static function invalidToken(): self
+    {
+        return new self("__Secure-1PSID value must end with a single dot. Enter correct __Secure-1PSID value.");
+    }
+
+    public static function errorResponse(String $status): self
+    {
+        return new self("Response Status: " . $status);
+    }
+
+    public static function snimoeValueNotFound(): self
+    {
+        return new self("SNlM0e value not found in response. Check __Secure-1PSID value.");
+    }
+}

src/LaravelBard.php

@@ -0,0 +1,141 @@
+<?php
+
+declare(strict_types=1);
+
+namespace AdityaDees\LaravelBard;
+
+use AdityaDees\LaravelBard\Exceptions\ErrorException;
+
+/**
+ * LaravelBard
+ *
+ * @author Aditya Dharmawan Saputra @adityadees
+ *
+ */
+
+class LaravelBard
+{
+    private $proxies;
+    private $timeout;
+    private $token;
+    private $session;
+    private $conversation_id;
+    private $response_id;
+    private $choice_id;
+    private $reqid;
+    private $SNlM0e;
+
+    public function __construct($timeout = 6, $proxies = null, $session = null)
+    {
+        $this->proxies = $proxies;
+        $this->timeout = $timeout;
+        $this->token = config('bard-laravel.bard_token');
+        $headers = [
+            "Host: bard.google.com",
+            "X-Same-Domain: 1",
+            "User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36",
+            "Content-Type: application/x-www-form-urlencoded;charset=UTF-8",
+            "Origin: https://bard.google.com",
+            "Referer: https://bard.google.com/",
+        ];
+        $this->reqid = (int) rand(pow(10, 3 - 1), pow(10, 3) - 1);
+        $this->conversation_id = "";
+        $this->response_id = "";
+        $this->choice_id = "";
+
+        if ($session === null) {
+            $this->session = curl_init();
+            curl_setopt_array($this->session, [
+                CURLOPT_HTTPHEADER => $headers,
+                CURLOPT_COOKIE => "__Secure-1PSID=" . $this->token,
+                CURLOPT_RETURNTRANSFER => true,
+            ]);
+        } else {
+            $this->session = $session;
+        }
+
+        $this->SNlM0e = $this->_get_snim0e();
+    }
+
+    private function _get_snim0e()
+    {
+        if (!$this->token || substr($this->token, -1) !== ".") {
+            throw ErrorException::invalidToken();
+        }
+        curl_setopt_array($this->session, [
+            CURLOPT_URL => "https://bard.google.com/",
+            CURLOPT_TIMEOUT => $this->timeout,
+            CURLOPT_PROXY => $this->proxies,
+            CURLOPT_PROXYTYPE => CURLPROXY_HTTP,
+            CURLOPT_FOLLOWLOCATION => true,
+            CURLOPT_SSL_VERIFYHOST => false,
+            CURLOPT_SSL_VERIFYPEER => false,
+            CURLOPT_RETURNTRANSFER => true,
+        ]);
+
+        $resp = curl_exec($this->session);
+        if (curl_getinfo($this->session, CURLINFO_HTTP_CODE) !== 200) {
+            throw ErrorException::errorResponse(curl_getinfo($this->session, CURLINFO_HTTP_CODE));
+        }
+        preg_match('/"SNlM0e":"(.*?)"/', $resp, $matches);
+        if (!$matches) {
+            throw ErrorException::snimoeValueNotFound();
+        }
+        return $matches[1];
+    }
+
+    public function get_answer($input_text)
+    {
+        $params = [
+            "bl" => "boq_assistant-bard-web-server_20230419.00_p1",
+            "_reqid" => (string) $this->reqid,
+            "rt" => "c",
+        ];
+        $input_text_struct = [
+            [$input_text],
+            null,
+            [$this->conversation_id, $this->response_id, $this->choice_id],
+        ];
+        $data = [
+            "f.req" => json_encode([null, json_encode($input_text_struct)]),
+            "at" => $this->SNlM0e,
+        ];
+
+        curl_setopt_array($this->session, [
+            CURLOPT_URL => "https://bard.google.com/_/BardChatUi/data/assistant.lamda.BardFrontendService/StreamGenerate?" . http_build_query($params),
+            CURLOPT_POST => true,
+            CURLOPT_POSTFIELDS => http_build_query($data),
+            CURLOPT_TIMEOUT => $this->timeout,
+            CURLOPT_PROXY => $this->proxies,
+            CURLOPT_PROXYTYPE => CURLPROXY_HTTP,
+            CURLOPT_FOLLOWLOCATION => true,
+            CURLOPT_SSL_VERIFYHOST => false,
+            CURLOPT_SSL_VERIFYPEER => false,
+            CURLOPT_RETURNTRANSFER => true,
+        ]);
+
+        $resp = curl_exec($this->session);
+        $resp_dict = json_decode(explode("\n", $resp)[3], true)[0][2];
+
+        if ($resp_dict === null) {
+            return ["content" => "Response Error: " . $resp . "."];
+        }
+        $parsed_answer = json_decode($resp_dict, true);
+        $bard_answer = [
+            "content" => $parsed_answer[0][0],
+            "conversation_id" => $parsed_answer[1][0],
+            "response_id" => $parsed_answer[1][1],
+            "factualityQueries" => $parsed_answer[3],
+            "textQuery" => $parsed_answer[2][0] ?? "",
+            "choices" => array_map(function ($i) {
+                return ["id" => $i[0], "content" => $i[1]];
+            }, $parsed_answer[4]),
+        ];
+        $this->conversation_id = $bard_answer["conversation_id"];
+        $this->response_id = $bard_answer["response_id"];
+        $this->choice_id = $bard_answer["choices"][0]["id"];
+        $this->reqid += 100000;
+
+        return $bard_answer;
+    }
+}

src/LaravelBardServiceProvider.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace AdityaDees\LaravelBard;
+
+use Illuminate\Support\ServiceProvider;
+
+class LaravelBardServiceProvider extends ServiceProvider
+{
+    public function boot(): void
+    {
+        $this->publishes([
+            __DIR__ . '/../config/laravel-bard.php' => config_path('laravel-bard.php'),
+        ], 'laravel-bard');
+    }
+
+    public function register(): void
+    {
+        $this->mergeConfigFrom(__DIR__ . '/../config/laravel-bard.php', 'laravel-bard');
+    }
+}