ng_attempts; $rval = $this->contact_service( 'ping', array( 'args' => $vaultpress_pings ) ); if ( $rval || $ping_attempts >= 3 ) break; if ( !$rval ) usleep(500000); } while ( true ); if ( !$rval ) { if ( $this->get_option( 'connection_error_code' ) !== -8 ) { // Do not save pings when the subscription is inactive. $__vp_recursive_ping_lock = true; $this->ai_ping_insert( serialize( $vaultpress_pings ) ); } } $this->reset_pings(); if ( $close_wpdb ) { $wpdb->__destruct(); unset( $wpdb ); } return $rval; } function resolve_content_dir() { // Take the easy way out if ( defined( 'WP_CONTENT_DIR' ) ) { if ( substr( WP_CONTENT_DIR, -1 ) != DIRECTORY_SEPARATOR ) return WP_CONTENT_DIR . DIRECTORY_SEPARATOR; return WP_CONTENT_DIR; } // Best guess if ( defined( 'ABSPATH' ) ) { if ( substr( ABSPATH, -1 ) != DIRECTORY_SEPARATOR ) return ABSPATH . DIRECTORY_SEPARATOR . 'wp-content' . DIRECTORY_SEPARATOR; return ABSPATH . 'wp-content' . DIRECTORY_SEPARATOR; } // Run with a solid assumption: WP_CONTENT_DIR/vaultpress/vaultpress.php return dirname( __DIR__ ) . DIRECTORY_SEPARATOR; } function resolve_upload_path() { $upload_path = false; $upload_dir = wp_upload_dir(); if ( isset( $upload_dir['basedir'] ) ) $upload_path = $upload_dir['basedir']; // Nothing recorded? use a best guess! if ( !$upload_path || $upload_path == realpath( ABSPATH ) ) return $this->resolve_content_dir() . 'uploads' . DIRECTORY_SEPARATOR; if ( substr( $upload_path, -1 ) != DIRECTORY_SEPARATOR ) $upload_path .= DIRECTORY_SEPARATOR; return $upload_path; } function load_first( $value ) { $value = array_unique( $value ); // just in case there are duplicates return array_merge( preg_grep( '/vaultpress\.php$/', $value ), preg_grep( '/vaultpress\.php$/', $value, PREG_GREP_INVERT ) ); } function is_multisite() { if ( function_exists( 'is_multisite' ) ) return is_multisite(); return false; } function is_main_site() { if ( !function_exists( 'is_main_site' ) || !$this->is_multisite() ) return true; return is_main_site(); } function is_registered() { $key = $this->get_option( 'key' ); $secret = $this->get_option( 'secret' ); return !empty( $key ) && !empty( $secret ); } function clear_connection() { $this->delete_option( 'connection' ); $this->delete_option( 'connection_error_code' ); $this->delete_option( 'connection_error_message' ); $this->delete_option( 'connection_test' ); } function site_url() { $site_url = ''; // compatibility for WordPress MU Domain Mapping plugin if ( defined( 'DOMAIN_MAPPING' ) && DOMAIN_MAPPING && ! function_exists( 'domain_mapping_siteurl' ) ) { if ( !function_exists( 'is_plugin_active' ) ) require_once ABSPATH . '/wp-admin/includes/plugin.php'; $plugin = 'wordpress-mu-domain-mapping/domain_mapping.php'; if ( is_plugin_active( $plugin ) ) include_once( WP_PLUGIN_DIR . '/' . $plugin ); } if ( function_exists( 'domain_mapping_siteurl' ) ) $site_url = domain_mapping_siteurl( false ); if ( empty( $site_url ) ) $site_url = site_url(); return $site_url; } /** * Sync the VaultPress options to WordPress.com if the Jetpack plugin is active. */ function sync_jetpack_options() { if ( class_exists( 'Jetpack_Sync' ) && method_exists( 'Jetpack_Sync', 'sync_options' ) && defined( 'JETPACK__VERSION' ) && version_compare( JETPACK__VERSION, '4.1', '<' ) ) { Jetpack_Sync::sync_options( __FILE__, $this->auto_register_option, $this->option_name ); } } /** * Add the VaultPress options to the Jetpack options management whitelist. * Allows Jetpack to register VaultPress options automatically. * * @param array $options The list of whitelisted option names. * * @return array The updated whitelist */ function add_to_jetpack_options_whitelist( $options ) { $options[] = $this->option_name; $options[] = $this->auto_register_option; return $options; } /** * When the VaultPress auto-register option is updated, run the registration call. * * This should only be run when the option is updated from the Jetpack/WP.com * API call, and only if the new key is different than the old key. * * @param mixed $old_value The old option value, or the option name (if add_option). * @param mixed $value The new option value. */ function updated_auto_register_option( $old_value, $value ) { // Not an API call or CLI call if ( ! class_exists( 'WPCOM_JSON_API_Update_Option_Endpoint' ) && ! ( defined( 'WP_CLI' ) && WP_CLI ) ) { return; } remove_action( "update_option_{$this->auto_register_option}", array( $this, 'updated_auto_register_option' ) ); $defaults = array( 'key' => false, 'action' => 'register', // or `response` 'status' => 'working', 'error' => false, ); // `wp_parse_args` uses arrays, might as well be explicit about it. $registration = (array) json_decode( $value ); $registration = wp_parse_args( $registration, $defaults ); // If we have a working connection, don't update the key. if ( $this->check_connection( true ) ) { $registration['action'] = 'response'; $registration['error'] = 'VaultPress is already registered on this site.'; update_option( $this->auto_register_option, json_encode( $registration ) ); return; } if ( ! $registration['key'] ) { return; } $registration['action'] = 'response'; $response = $this->register( $registration['key'] ); if ( is_wp_error( $response ) ) { $registration['status'] = 'broken'; $registration['error'] = $response->get_error_message(); } else if ( $this->get_option( 'connection_error_code' ) ) { $registration['status'] = 'broken'; $registration['error'] = $this->get_option( 'connection_error_message' ); } else { $registration['error'] = false; } update_option( $this->auto_register_option, json_encode( $registration ) ); } function add_global_actions_and_filters() { add_action( 'init', array( $this, 'sync_jetpack_options' ), 0, 99 ); add_filter( 'jetpack_options_whitelist', array( $this, 'add_to_jetpack_options_whitelist' ) ); add_action( "update_option_{$this->auto_register_option}", array( $this, 'updated_auto_register_option' ), 10, 2 ); add_action( "add_option_{$this->auto_register_option}", array( $this, 'updated_auto_register_option' ), 10, 2 ); add_action( 'admin_enqueue_scripts', array( $this, 'styles' ) ); } function add_admin_actions_and_filters() { add_action( 'admin_init', array( $this, 'admin_init' ) ); add_action( 'admin_menu', array( $this, 'admin_menu' ), 5 ); # Priority 5, so it's called before Jetpack's admin_menu. add_action( 'admin_head', array( $this, 'admin_head' ) ); } function add_listener_actions_and_filters() { add_action( 'admin_bar_menu', array( $this, 'toolbar' ), 999 ); // Comments add_action( 'delete_comment', array( $this, 'comment_action_handler' ) ); add_action( 'wp_set_comment_status', array( $this, 'comment_action_handler' ) ); add_action( 'trashed_comment', array( $this, 'comment_action_handler' ) ); add_action( 'untrashed_comment', array( $this, 'comment_action_handler' ) ); add_action( 'wp_insert_comment', array( $this, 'comment_action_handler' ) ); add_action( 'comment_post', array( $this, 'comment_action_handler' ) ); add_action( 'edit_comment', array( $this, 'comment_action_handler' ) ); // Commentmeta add_action( 'added_comment_meta', array( $this, 'commentmeta_insert_handler' ), 10, 2 ); add_action( 'updated_comment_meta', array( $this, 'commentmeta_modification_handler' ), 10, 4 ); add_action( 'deleted_comment_meta', array( $this, 'commentmeta_modification_handler' ), 10, 4 ); // Users if ( $this->is_main_site() ) { add_action( 'user_register', array( $this, 'userid_action_handler' ) ); add_action( 'password_reset', array( $this, 'userid_action_handler' ) ); add_action( 'profile_update', array( $this, 'userid_action_handler' ) ); add_action( 'user_register', array( $this, 'userid_action_handler' ) ); add_action( 'deleted_user', array( $this, 'userid_action_handler' ) ); } // Usermeta if ( $this->is_main_site() ) { // Keeping these action hooks for backward compatibility add_action( 'added_usermeta', array( $this, 'usermeta_action_handler' ), 10, 4 ); add_action( 'update_usermeta', array( $this, 'usermeta_action_handler' ), 10, 4 ); add_action( 'delete_usermeta', array( $this, 'usermeta_action_handler' ), 10, 4 ); add_action( 'added_user_meta', array( $this, 'usermeta_action_handler' ), 10, 4 ); add_action( 'update_user_meta', array( $this, 'usermeta_action_handler' ), 10, 4 ); add_action( 'delete_user_meta', array( $this, 'usermeta_action_handler' ), 10, 4 ); } // Posts add_action( 'delete_post', array( $this, 'post_action_handler' ) ); add_action( 'trash_post', array( $this, 'post_action_handler' ) ); add_action( 'untrash_post', array( $this, 'post_action_handler' ) ); add_action( 'edit_post', array( $this, 'post_action_handler' ) ); add_action( 'save_post', array( $this, 'post_action_handler' ) ); add_action( 'wp_insert_post', array( $this, 'post_action_handler' ) ); add_action( 'edit_attachment', array( $this, 'post_action_handler' ) ); add_action( 'add_attachment', array( $this, 'post_action_handler' ) ); add_action( 'delete_attachment', array( $this, 'post_action_handler' ) ); add_action( 'private_to_publish', array( $this, 'post_action_handler' ) ); add_action( 'wp_restore_post_revision', array( $this, 'post_action_handler' ) ); // Postmeta add_action( 'added_post_meta', array( $this, 'postmeta_insert_handler' ), 10, 4 ); add_action( 'update_post_meta', array( $this, 'postmeta_modification_handler' ), 10, 4 ); add_action( 'updated_post_meta', array( $this, 'postmeta_modification_handler' ), 10, 4 ); add_action( 'delete_post_meta', array( $this, 'postmeta_modification_handler' ), 10, 4 ); add_action( 'deleted_post_meta', array( $this, 'postmeta_modification_handler' ), 10, 4 ); add_action( 'added_postmeta', array( $this, 'postmeta_action_handler' ), 10, 3 ); add_action( 'update_postmeta', array( $this, 'postmeta_action_handler' ), 10, 3 ); add_action( 'delete_postmeta', array( $this, 'postmeta_action_handler' ), 10, 3 ); // Links add_action( 'edit_link', array( $this, 'link_action_handler' ) ); add_action( 'add_link', array( $this, 'link_action_handler' ) ); add_action( 'delete_link', array( $this, 'link_action_handler' ) ); // Taxonomy add_action( 'created_term', array( $this, 'term_handler' ), 2 ); add_action( 'edited_terms', array( $this, 'term_handler' ), 2 ); add_action( 'delete_term', array( $this, 'term_handler' ), 2 ); add_action( 'edit_term_taxonomy', array( $this, 'term_taxonomy_handler' ) ); add_action( 'delete_term_taxonomy', array( $this, 'term_taxonomy_handler' ) ); add_action( 'edit_term_taxonomies', array( $this, 'term_taxonomies_handler' ) ); add_action( 'add_term_relationship', array( $this, 'term_relationship_handler' ), 10, 2 ); add_action( 'delete_term_relationships', array( $this, 'term_relationships_handler' ), 10, 2 ); add_action( 'set_object_terms', array( $this, 'set_object_terms_handler' ), 10, 3 ); // Files if ( $this->is_main_site() ) { add_action( 'switch_theme', array( $this, 'theme_action_handler' ) ); add_action( 'activate_plugin', array( $this, 'plugin_action_handler' ) ); add_action( 'deactivate_plugin', array( $this, 'plugin_action_handler' ) ); } add_action( 'wp_handle_upload', array( $this, 'upload_handler' ) ); // Options add_action( 'deleted_option', array( $this, 'option_handler' ), 1 ); add_action( 'updated_option', array( $this, 'option_handler' ), 1 ); add_action( 'added_option', array( $this, 'option_handler' ), 1 ); $this->add_woocommerce_actions(); $this->add_vp_required_filters(); } function add_woocommerce_actions() { add_action( 'woocommerce_tax_rate_deleted', array( $this, 'woocommerce_tax_rate_handler' ), 10, 1 ); add_action( 'woocommerce_tax_rate_updated', array( $this, 'woocommerce_tax_rate_handler' ), 10, 1 ); add_action( 'woocommerce_tax_rate_added', array( $this, 'woocommerce_tax_rate_handler' ), 10, 1 ); add_action( 'woocommerce_new_order_item', array( $this, 'woocommerce_order_item_handler' ), 10, 1 ); add_action( 'woocommerce_update_order_item', array( $this, 'woocommerce_order_item_handler' ), 10, 1 ); add_action( 'woocommerce_delete_order_item', array( $this, 'woocommerce_order_item_handler' ), 10, 1 ); add_action( 'added_order_item_meta', array( $this, 'woocommerce_order_item_meta_handler' ), 10, 1 ); add_action( 'updated_order_item_meta', array( $this, 'woocommerce_order_item_meta_handler' ), 10, 1 ); add_action( 'deleted_order_item_meta', array( $this, 'woocommerce_order_item_meta_handler' ), 10, 1 ); add_action( 'woocommerce_attribute_added', array( $this, 'woocommerce_attribute_handler' ), 10, 1 ); add_action( 'woocommerce_attribute_updated', array( $this, 'woocommerce_attribute_handler' ), 10, 1 ); add_action( 'woocommerce_attribute_deleted', array( $this, 'woocommerce_attribute_handler' ), 10, 1 ); } function add_vp_required_filters() { // Log ins if ( $this->get_option( 'login_lockdown' ) ) { add_action( 'login_form', array( $this, 'add_js_token' ) ); add_filter( 'authenticate', array( $this, 'authenticate' ), 999 ); } // Report back to VaultPress add_action( 'shutdown', array( $this, 'do_pings' ) ); // VaultPress likes being first in line add_filter( 'pre_update_option_active_plugins', array( $this, 'load_first' ) ); } function get_jetpack_email() { if ( ! class_exists( 'Jetpack' ) ) { return false; } // For version of Jetpack prior to 7.7. if ( defined( 'JETPACK__VERSION' ) && version_compare( JETPACK__VERSION, '7.7', '<' ) && ! class_exists( 'Jetpack_IXR_Client' ) ) { Jetpack::load_xml_rpc_client(); } $xml = new Jetpack_IXR_Client( array( 'user_id' => get_current_user_id() ) ); $xml->query( 'wpcom.getUserEmail' ); if ( ! $xml->isError() ) { return $xml->getResponse(); } return new WP_Error( $xml->getErrorCode(), $xml->getErrorMessage() ); } function get_key_via_jetpack( $already_purchased = false ) { if ( ! class_exists( 'Jetpack' ) ) { return false; } // For version of Jetpack prior to 7.7. if ( defined( 'JETPACK__VERSION' ) && version_compare( JETPACK__VERSION, '7.7', '<' ) && ! class_exists( 'Jetpack_IXR_Client' ) ) { Jetpack::load_xml_rpc_client(); } $xml = new Jetpack_IXR_Client( array( 'user_id' => Jetpack_Options::get_option( 'master_user' ) ) ); $xml->query( 'vaultpress.registerSite', $already_purchased ); if ( ! $xml->isError() ) { return $xml->getResponse(); } return new WP_Error( $xml->getErrorCode(), $xml->getErrorMessage() ); } function register_via_jetpack( $already_purchased = false ) { $registration_key = $this->get_key_via_jetpack( $already_purchased ); if ( is_wp_error( $registration_key ) ) { return $registration_key; } return self::register( $registration_key ); } } $vaultpress = VaultPress::init(); if ( isset( $_GET['vaultpress'] ) && $_GET['vaultpress'] ) { if ( !function_exists( 'wp_magic_quotes' ) ) { // Escape with wpdb. $_GET = add_magic_quotes( $_GET ); $_POST = add_magic_quotes( $_POST ); $_COOKIE = add_magic_quotes( $_COOKIE ); $_SERVER = add_magic_quotes( $_SERVER ); // Force REQUEST to be GET + POST. If SERVER, COOKIE, or ENV are needed, use those superglobals directly. $_REQUEST = array_merge( $_GET, $_POST ); } else { wp_magic_quotes(); } if ( !function_exists( 'wp_get_current_user' ) ) include ABSPATH . '/wp-includes/pluggable.php'; // TODO: this prevents some error notices but do we need it? is there a better way to check capabilities/logged in user/etc? if ( function_exists( 'wp_cookie_constants' ) && !defined( 'AUTH_COOKIE' ) ) wp_cookie_constants(); $vaultpress->parse_request( null ); die(); } // only load hotfixes if it's not a VP request require_once __DIR__ . '/class.vaultpress-hotfixes.php'; $hotfixes = new VaultPress_Hotfixes(); // Add a helper method to WP CLI for auto-registerion via Jetpack if ( defined( 'WP_CLI' ) && WP_CLI ) { require_once __DIR__ . '/class.vaultpress-cli.php'; } require_once __DIR__ . '/cron-tasks.php'; IIIT-Lucknow tweaks tech to make cheaper drone - Social News XYZ
Social News XYZ     

IIIT-Lucknow tweaks tech to make cheaper drone

Posted By: Gopi March 11, 2023

IIIT-Lucknow tweaks tech to make cheaper drone

Lucknow, March 12 (SocialNews.XYZ) The Indian Institute of Information Technology-Lucknow (IIIT-L) has built a 'desi drone' which is equally efficient, but five times cheaper than the ones available in the market.

It has been done with an innovative tweak in drone technology using a mobile phone.

 

A panel of experts at the incubation centre of IIT-Patna has approved the innovation and released grants for further development of the indigenous drone.

The IIIT-L team will patent this innovation soon.

The new drone has been developed after research for around six months by Assistant Professor Vishal Krishna Singh and his two students.

It can be used by farmers and agriculture experts for monitoring their crops and agricultural terrain mapping.

Besides, officials can use it to assess drought and flood situations. Even individuals can utilise it for aerial photography.

The team was given the responsibility to develop in 12 months an economical drone by the department of science and technology (DST) under its scheme NIDHI-PRAYAS at the incubation centre of IIT Patna.

National Initiative for Developing and Harnessing Innovations (NIDHI) is an umbrella programme conceived and developed by the DST for Promoting and Accelerating Young and Aspiring innovators & Startups.

Lead innovator Vishal Krishna Singh who also heads the wireless communications and analytics research lab at IIIT, said, "One of the most expensive components of a part is the camera. Hence, instead of using the regular camera, we made an innovation that enabled the drone to take photographs through a mobile phone camera. This enabled us to bring down the cost."

"The cost of a drone at present is around Rs 8,000, which can be brought down to Rs 3,000 in case of mass production. The drones of the same efficiency and quality currently are priced above Rs 40,000," he added.

Explaining further about the innovation, Singh said, "We have made a port on the drone's quadcopter where one can plug in his or her mobile phone. The drone sensors while flying then uses the camera of the mobile phone to take photographs and transmit them to the laptop through an android application for aerial monitoring. The app for this purpose has also been developed by us."

Source: IANS

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IIIT-Lucknow tweaks tech to make cheaper drone

About Gopi

Gopi Adusumilli is a Programmer. He is the editor of SocialNews.XYZ and President of AGK Fire Inc.

He enjoys designing websites, developing mobile applications and publishing news articles on current events from various authenticated news sources.

When it comes to writing he likes to write about current world politics and Indian Movies. His future plans include developing SocialNews.XYZ into a News website that has no bias or judgment towards any.

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