Changes

==Where to download=====Linux===You can download alpha-version the latest server versions of the engine here:* Ubuntu 12 i386: http://dl.acestream.org/ubuntu/12/acestream_3.0.2_ubuntu_12.04_i686.tar.gz* Ubuntu 12 amd64: http://dl.acestream.org/ubuntu/12/acestream_3.0.2_ubuntu_12.04_x86_64.tar.gz* Ubuntu 13 i386: http://dl.acestream.org/ubuntu/13/acestream_3.0-a1_ubuntu_12_amd64.2_ubuntu_13.10_i686.tar.gz* Ubuntu 13 amd64: http://dl.acestream.org/ubuntu/13/acestream_3.0.2_ubuntu_13.10_x86_64.tar.gz* Ubuntu 14 i386: http://dl.acestream.org/ubuntu/14/acestream_3.0.2_ubuntu_14.04_i686.tar.gz* Ubuntu 14 amd64: http://dl.acestream.org/ubuntu/14/acestream_3.0.2_ubuntu_14.04_x86_64.tar.gz* CentOS 6 amd64: http://dl.acestream.org/centos/6/acestream_3.0.2_centos_6_amd64.tar.gz* CentOS 7 amd64: http://dl.acestream.org/centos/7/acestream_3.0.2_centos_7_amd64.tar.gz* Debian 6 i386: http://dl.acestream.org/debian/6/acestream_3.0.2_debian_6.0.10_i686.tar.gz* Debian 6 amd64: http://dl.acestream.org/debian/6/acestream_3.0.2_debian_6.0.10_x86_64.tar.gz* Debian 7 i386: http://dl.acestream.org/debian/7/acestream_3.0.2_debian_7.6_i686.tar.gz* Debian 7 amd64: http://dl.acestream.org/debian/7/acestream_3.0.2_debian_7.4_x86_64.tar.gz

Alpha===Windows===* full package (engine + plug-version can be installed on in + player): http://dl.acestream.org/products/acestream-full/win/latest* only the same server where any current version is installed without removing itengine: http://dl.acestream.org/win32/engine/AceStreamEngine_3.0.2.zip

To ===Android===* engine + player: http://dl.acestream.org/products/acestream-full/android/latest* only the engine: http://dl.acestream.org/products/acestream-engine/android/latest ==Changelog==''3.0.2''*ability to filter traffic at special nodes is added (look at [[#Traffic filtration|Traffic filtration]]) ''3.0.1''*a large-scale optimization of all modules was held ''3.0.0-a18''*bug, because of which some support nodes could lose connection with the source, was fixed*parameter <tt>--title</tt> became required (this parameter transfers "readable" name of broadcast which is displayed at users' players during playback)*two required parameters for the source are added:**<tt>--quality</tt> - channel's quality; possible values:***SD***HD**<tt>--category</tt> - channel's category; possible values:***informational***entertaining***educational***movies***documentaries***sport***fashion***music***regional***ethnic***religion***teleshop***erotic_18_plus***other_18_plus***cyber_games***amateur***webcam ''3.0.0-a12''*CPU usage was significantly optimized *memory leaks were eliminated ''3.0.0-a5''*start nodes are added ''3.0.0-a2''*support nodes are added*options for configuration of private nodes and schemes of distribution of traffic between support nodes and a source are added ''3.0.0-a1''*the first alpha-version ==How to install alphaover the old version==* download package for your OS* unzip to a temporary folder (for example, to /tmp/acestream)* copy appropriate files from temporary folder to root folders /usr/bin/ and /usr/share/acestream (all old files and folders can be deleted) IMPORTANT: For the work of a new engine package <tt>python-setuptools</tt> must be installed. ==How to launch without deleting an old version==Alpha-version can be launched on a server simultaneously with any release version. For the launching you needto:* download an archive for your OS* extract unpack archive in any folder (for example, /opt/acestream/engine_new)* run launch acestreamengine file acestreamengine in the extracted unpacked folder with a parameter --lib-path /path/to/acestream_libraries. Example:

The parameter Parameter --lib-path sets the path to Ace Stream libraries. The By default the path is /usr/share/acestreamis used. If there is a current (the release) version of the engine is already installed on the server then , it will run be launched without setting specifying the parameter --lib-path (because libraries from the default path /usr/share/acestream will be used). To be know for sure which version you have run was launched, you can check the version from the command line. For example, if engine version 2.1.6 is already installed then , the result without setting specifying --lib-path the result will be like thisfollowing:

To run alpha-version you need to set With specifying --lib-patha new version will be launched:

There === Launch on CentOS ===On CentOS there are some changes features of the engine launch. Standard library openssl on CentOS do not support some necessary for the engine functions. In this regard, together with the engine for CentOS there is a recompiled library openssl and module python-m2crypto, which is superstructure over openssl. These libraries are in command line parameters the folder usr in archieve with the alphaengine. To use them you have to copy folders "lib64" and "local" from the folder "usr" into appropriate folders in /usr. If the engine of the previous version is installed on the server, these libraries are in your system and there is no need to copy them. To launch the engine under CentOS script start.sh is used instead of acestreamengine in the folder with the engine. This script sets an environment variable LD_LIBRARY_PATH=/usr/local/ssl/lib before the engine launch, so the recompiled version of the library openssl was used. Also this script automatically passes the path to libraries to the engine through the parameter -version-lib-path, so there is no need to specify it additionally.

New ==Changes in launch parameters:==*--live-cache-type - cache type: disk - save cache In a new version there are some differences on the disk in the folder set by --cache-dir parameter, memory - save cache in the RAM (by default: disk)*--live-cache-size - the maximum cache size in bytes (be default: 209715200 bytes (200 Mb))launch parameters.

These ===New flags for the engine launch in different modes===*--stream-source-node (instead of --stream-source)*--stream-support-node (instead of --stream-node) ===New parameters are temporarely unsupported for setting up cache===*--live-cache-type (string) - cache type: disk - store the cache on the disk in the folder specified by parameter --cache-dir, memory - store the cache in random-access memory (by default: disk)*--live-cache-size (integer) - maximum size of the alphacache in bytes (by default: 209715200 bytes (200 Mb)) ===New parameters for configuration of support nodes infrastructure===*-version-private-node (0 or 1) - if you specify 1, the node will be private (by default:0)*--download-from (string) - add the address to a list of nodes from which this node is allowed to receive data. The address must be specified in a format ipv4_address:port. This parameter may occur more than once.*--upload-to (string) - add the address to the list of nodes to which this node is allowed to give data. The address must be specified in a format ipv4_address:port. This parameter may occur more than once.*--monitor-node-ip (string) - ipv4 address of monitoring-server ===New parameters to launch the source===*--metatracker (string) - add the address of metatracker to the transport file ===These parameters are not used any more===*--stream-source (is changed to --stream-source-node)*--stream-node (is changed to --stream-support-node)*--add-authorized-peers (list of authorized peers is not added to transport file any more)*--private-source (is changed to --private-node)

*--source-node*--allow-source-download*--allow-support-download*--allow-peers-download ==New functional== ===Setting up support nodes===In a new version it is necessary to explicitly specify to support nodes from which nodes they have to download data. For this, parameter <tt>--download-from</tt> is used. A list of nodes, from which downloading is allowed, can be changed without restarting support node through node's web-interface (look below). For example, if node-source is launched by address 192.168.1.2:7764 and we want to launch support node which loads data only from the source, a command to launch support node will be following: <nowiki>acestreamengine \ --stream-support-node \ --url http://192.168.1.2/transport/test.acelive \ --port 8631 \ --download-from "192.168.1.2:7764"</nowiki> ===Private nodes===Private node gives data only to nodes that explicitly are added to its list of allowed. In order to make a node private you have to launch it with a parameter <tt>--private-node 1</tt>. To add the address to the list of allowed to upload a parameter <tt>--upload-to</tt> is used. Both, node-source and support node, can be private. Private node repulses incoming connections from all addresses except specified by parameters <tt>--download-from</tt>, <tt>--upload-to</tt> and <tt>--monitor-node-ip</tt>. To filter only ip-address is used (port is not used). Parameter <tt>--monitor-node-ip</tt> sets ip-address of the monitoring server and is used in case if there is a need to provide monitoring of the private node (without specifying this parameter private node will repulse all requests from the monitoring server). Example of launching the private source which will give data only to support node from the previous example: <nowiki>acestreamengine \ --stream-source-node \ --port 7764 \ --source "http://brodilo.tv/channel.php" \ --name "test" \ --title "test" \ --bitrate 350000 \ --publish-dir /var/www/transport \ --cache-dir /var/cache/acestream \ --private-node 1 \ --upload-to "192.168.1.3:8631"</nowiki> ===Start nodes===Start node is intended to provide the fastest possible start of a broadcast from users' side. A special feature of the start node is a constant rotation of connections. When new incoming connections are received the start node terminates connections to nodes which were connected earlier and have already downloaded certain amount of data. To launch the engine in the start node mode parameter <tt>--stream-startup-node</tt> is used. The start node takes the same set of parameters as the support node.<!--Стартовый узел принимает такой же набор параметров, как и узел поддержки, плюс некоторые дополнительные параметры:*''<tt>--startup-node-max-connections (integer)</tt>'' - максимальное количество узлов, с которым стартовый узел держит постоянные соединения (если к узлу подключится больше других узлов, чем указано в этом параметре, лишние соединения будут разорваны).*''<tt>--startup-node-cleanup-interval (integer)</tt>'' - интервал очистки лишних соединений в секундах (по умолчанию: 1).*''<tt>--startup-node-upload-buffer (integer)</tt>'' - минимальный буфер в секундах, который будет отдан каждому подсоединившемуся узлу перед тем, как его можно будет отключить*''<tt>--startup-node-time-limit (integer)</tt>'' - максимальная длительность соединения в секундах, после достижения которой соединение может быть разорвано, даже если узел еще не получил необходмый объем данных.--> Example of launching the start node: <nowiki>acestreamengine \ --stream-startup-node \ --url http://192.168.1.2/transport/test.acelive \ --port 8632 \ --download-from "192.168.1.2:7764"</nowiki> ===Metatrackers=== Metatracker is a server which informs nodes about available trackers and start nodes. Metatracker's URL is given at the source when creating a broadcast and is recorded to the transport file. Metatrackers allow to addtrackers and/or start nodes for the broadcast automatically without the need to restart the broadcast and recreate the transport file. Example of launching a source with the metatracker: <nowiki>acestreamengine \ --stream-source-node \ --port 7764 \ --source "http://brodilo.tv/channel.php" \ --metatracker "http://example.org/metatracker.php" --name "test" \ --title "test" \ --bitrate 350000 \ --publish-dir /var/www/transport \ --cache-dir /var/cache/acestream \ --private-node 1 \ --upload-to "192.168.1.3:8631"</nowiki> Metatracker accepts requests via HTTP protocol and gives responds in JSON format, therefore the metatracker can be implemented on the basis of any web server. When broadcast starts, each node sends to the metatracker HTTP GET request with parameter <tt>infohash</tt> (broadcast hash as a hex-string). Example of the request to the metatracker: <nowiki>http://example.org/metatracker.php?infohash=a94a8fe5ccb19ba61c4c0873d391e987982fbbd3</nowiki> Respond format: <nowiki>{ "trackers": ["tracker_url_1", "tracker_url_2", ...], "startup_nodes": ["node1_address", "node2_address", ...], "interval": UPDATE_INTERVAL_IN_SECONDS}</nowiki> where*tracker_url_1, tracker_url_2 - trackers' URL*node1_address, node2_address - start nodes' addresses as strings in ip:port format (for example, 192.168.1.2:8632)*UPDATE_INTERVAL_IN_SECONDS - update interval in seconds (how often each client has to reapply to metatreker) Respond example: <nowiki>{ "trackers":["udp:\/\/tracker.example.org:2710\/announce"], "startup_nodes":["192.168.1.2:8632"], "interval":3600}</nowiki> Example of a server code on PHP: <nowiki><?php$infohash = isset($_GET['infohash']) ? $_GET['infohash'] : ''; $trackers = array( 'udp://tracker.example.org:2710/announce',); $startup_nodes = array( '192.168.1.2:8632',); $data = array( 'trackers' => $trackers, 'startup_nodes' => $startup_nodes, 'interval' => 30,); header('Content-Type: application/json');echo json_encode($data);</nowiki> ===Node's web-interface===Every node has web-interface to view current status, as well as options to change some of the parameters "on the fly" (without restarting the node). Web-interface works on the main port of the node (specified by parameter <tt>--port</tt>). By default web-interface is available only from the same machine, from which the node was launched.To allow remote access, you have to launch the node with option <tt>--service-remote-access</tt>.Also you can set a password for web-interface to prevent unauthorized access, using option <tt>--service-access-token</tt> Full list of options to customize web-interface:*<tt>--stats-report-interval</tt> - frequency of node's statistics update, in seconds (by default 60)*<tt>--stats-report-peers</tt> - if this option is set, a list of nodes that are currently connected to the node will be shown in monitoring (by default node list is not displayed).*<tt>--service-remote-access</tt> - allow remote access to web-interface*<tt>--service-access-token</tt> - set a password for web-interface Access to web-interface is performed via HTTP-GET request to the node's port:*monitoring - <nowiki>http://node.address:PORT/app/TOKEN/monitoring</nowiki>*control - <nowiki>http://node.address:PORT/app/TOKEN/update</nowiki> If node was launched without option <tt>--service-access-token</tt>, then TOKEN is not specified in the request.<br/>Responses are given in JSON format. Examples:*request to the node without the password for web-interface: <nowiki>http://192.168.1.3:8640/app/monitor</nowiki>*request to the node with the password "qwerty" for web-interface: <nowiki>http://192.168.1.3:8640/app/qwerty/monitor</nowiki> ====Monitoring====Interface of monitoring gives the following information:*<tt>version</tt> - node's version*<tt>max_connections</tt> - maximum number of TCP-connections*<tt>max_peers</tt> - maximum number of concurrently connected nodes*<tt>max_upload_slots</tt> - maximum number of opened upload slots*<tt>download_speed</tt> - current speed of data download (byte/s)*<tt>upload_speed</tt> - current speed of data upload (byte/s)*<tt>connected_peers_count</tt> - number of connected nodes*<tt>connected_peers</tt> -authorizedlist of connected nodes (empty, if option --stats-report-peersis not set)*<tt>upload_slots</tt> - current number of upload slots ====Management====To change node's parameters "on the fly" you have to send a request of the following kind to web-interface: <nowiki>http://192.168.1.3:8640/app/update?param1=value1&param2=value2...</nowiki>param1 and param2 set names of parameters that have to be updated, value1 and value2 are new values for the parameters. Available for updating parameters:*<tt>max_peers</tt>*<tt>max_upload_slots</tt> Example: <nowiki>http://192.168.1.3:8640/app/update?max_peers=100&max_upload_slots=30</nowiki> (keep the connection with 100 nodes simultaneously and open 30 upload slots) ===Traffic filtration===Starting from version 3.0.2 an ability to filter traffic at special nodes (source, support node and start node) was added. You can filter by ip-addresses or by geotargeting. Rules for the filtration should be put in a separate configuration file, path to which is passed in a special node in parameter --ip-filter-config. Configuration file is a text file in JSON format with the following structure: <tt>{ "groups": { "<group_1>": { "addresses": ["<ip_address_1>", "<ip_address_2>", ...], "countries": ["<country_code_1>", "<country_code_2>", ...] }, "<group_2>": { "addresses": ["<ip_address_1>", "<ip_address_2>", ...], "countries": ["<country_code_1>", "<country_code_2>", ...] }, }, "blacklist": { "addresses": ["<ip_address_1>", "<ip_address_2>", ...], "countries": ["<country_code_1>", "<country_code_2>", ...], "groups": ["<group_1>", "<group_2>", ...] }, "whitelist": { "addresses": ["<ip_address_1>", "<ip_address_2>", ...], "countries": ["<country_code_1>", "<country_code_2>", ...], "groups": ["<group_1>", "<group_2>", ...] }, "limit_groups": { "<group_1>": "30%", "<group_2>": "10%" } }</tt> Section <tt>groups</tt> is used to create named groups, that can be referenced in other sections of the file.Each group may consist of an array ip-addresses (<tt>addresses</tt>) or country codes (<tt>countries</tt>). Array <tt>addresses</tt> may contain addresses of individual hosts, as well as addresses of subnetworks in the format xx.xx.xx.xx/yy. At this moment it is allowed to use only subnetworks /24, /16 and /8. Array <tt>countries</tt> has to contain country codes in uppercase (according to the base [https://www.maxmind.com MaxMind]) Section <tt>whitelist</tt> sets a white list. The node rejects connections from all addresses that are not included in a white list.  Section <tt>blacklist</tt> sets a black list. The node rejects connections from all addresses from a black list. Section <tt>limit_groups</tt> sets limits on the maximum number of connections for each group (in percentage of the total maximum number of connections).