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184 lines
4.7 KiB
Markdown
184 lines
4.7 KiB
Markdown
### YGGo! - Distributed & Open Source Web Search Engine
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_Проект присвячується захисникам міста Бахмут_
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Written by inspiration to explore [Yggdrasil](https://yggdrasil-network.github.io) ecosystem, because of last [YaCy](https://yacy.net/) node there was discontinued.
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This engine also could be useful for crawling regular websites, small business resources, local networks.
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The project goal - simple interface, clear architecture and lightweight server requirement.
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#### Overview
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https://github.com/YGGverse/YGGo/tree/main/media
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#### Online instances
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* [http://[201:23b4:991a:634d:8359:4521:5576:15b7]/yggo](http://[201:23b4:991a:634d:8359:4521:5576:15b7]/yggo)
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* [http://94.140.114.241/yggo/](http://94.140.114.241/yggo)
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#### Requirements
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```
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php8^
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php-dom
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php-pdo
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php-curl
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php-gd
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php-mysql
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sphinxsearch
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```
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#### Installation
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* The web root dir is `/public`
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* Deploy the database using [MySQL Workbench](https://www.mysql.com/products/workbench) project presented in the `/database` folder
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* Install [Sphinx Search Server](https://sphinxsearch.com)
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* Configuration examples are placed at `/config` folder
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* Make sure `/storage` folder is writable
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* Set up the `/crontab` scripts by following [example](https://github.com/YGGverse/YGGo/blob/main/config/crontab.txt)
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#### JSON API
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Build third party applications / index distribution.
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Could be enabled or disabled by `API_ENABLED` option
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###### Address
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```
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/api.php
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```
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##### Search
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Returns search results.
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Could be enabled or disabled by `API_SEARCH_ENABLED` option
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###### Request attributes
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```
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GET action=search - required
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GET query={string} - optional, search request, empty if not provided
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GET type={string} - optional, search type, image|default or empty
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GET page={int} - optional, search results page, 1 if not provided
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GET mode=SphinxQL - optional, enable extended SphinxQL syntax
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```
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##### Hosts distribution
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Returns node hosts collected with fields provided in `API_HOSTS_FIELDS` option.
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Could be enabled or disabled by `API_HOSTS_ENABLED` option
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###### Request attributes
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```
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GET action=hosts - required
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```
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##### Application manifest
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Returns node information.
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Could be enabled or disabled by `API_MANIFEST_ENABLED` option
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###### Request attributes
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```
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GET action=manifest - required
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```
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#### Search textual filtering
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##### Default constructions
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```
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operator OR:
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hello | world
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operator MAYBE:
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hello MAYBE world
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operator NOT:
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hello -world
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strict order operator (aka operator "before"):
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aaa << bbb << ccc
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exact form modifier:
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raining =cats and =dogs
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field-start and field-end modifier:
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^hello world$
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keyword IDF boost modifier:
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boosted^1.234 boostedfieldend$^1.234
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```
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##### Extended syntax
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https://sphinxsearch.com/docs/current.html#extended-syntax
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Could be enabled with following attributes
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```
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GET m=SphinxQL
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```
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#### Roadmap
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* [x] Web pages full text ranking search
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* [x] Make search results pagination
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* [x] Robots.txt / robots meta tags support (Issue #2)
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* [ ] Redirect codes extended processing
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* [ ] Make page description with found matches highlight
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* [x] Images search with safe proxy preview support
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* [x] Deprecated index auto cleaner
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* [ ] Crawl queue balancer, that depends of CPU available
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* [x] Auto stop crawling on disk quota reached
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* [ ] Indexing new sites homepage in higher priority
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* [x] Add transactions to prevent data loss on DB crashes
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* [x] JSON API
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* [x] Distributed index data sharing between the nodes trough manifest API
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* [x] Unique gravatars for sites without favicons, because simpler to ident, comparing to ipv6
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* [ ] Link clicks counter, trough internal stats redirect controller
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* [ ] The time machine feature by content history cache preview
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* [ ] Context advertising API
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* [ ] Administrative panel for useful index moderation
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#### Contributions
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Please make a new branch of master|sqliteway tree for each patch in your fork before create PR
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```
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git checkout master
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git checkout -b my-pr-branch-name
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```
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See also: [SQLite tree](https://github.com/YGGverse/YGGo/tree/sqliteway)
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#### Donate to contributors
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* @d47081: [BTC](https://www.blockchain.com/explorer/addresses/btc/bc1qngdf2kwty6djjqpk0ynkpq9wmlrmtm7e0c534y) | [DOGE](https://dogechain.info/address/D5Sez493ibLqTpyB3xwQUspZvJ1cxEdRNQ) | Support our server by order [Linux VPS](https://www.yourserver.se/portal/aff.php?aff=610)
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#### License
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* Engine sources [MIT License](https://github.com/YGGverse/YGGo/blob/main/LICENSE)
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* Home page animation by [alvarotrigo](https://codepen.io/alvarotrigo/pen/GRvYNax)
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#### Feedback
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Please, feel free to share your ideas and bug reports [here](https://github.com/YGGverse/YGGo/issues) or use sources for your own implementations.
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Have a good time.
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