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tree5b5babb9887cafa3dbc165928dc2b0fd65265bda
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начальный коммитHEADmaster
-rw-r--r--.env.dist1
-rw-r--r--.gitignore2
-rw-r--r--LICENSE674
-rw-r--r--README.md224
-rw-r--r--cmd/pose/main.go37
-rw-r--r--config.conf15
-rw-r--r--go.mod25
-rw-r--r--go.sum45
-rw-r--r--internal/application/application.go148
-rw-r--r--internal/database/db.go54
-rw-r--r--internal/model/item.go24
-rw-r--r--internal/source/feed.go95
-rw-r--r--internal/target/html.go14
-rw-r--r--internal/target/telegram.go112
14 files changed, 1470 insertions, 0 deletions
diff --git a/.env.dist b/.env.dist
new file mode 100644
index 0000000..e4afe49
--- /dev/null
+++ b/.env.dist
@@ -0,0 +1 @@
+TELEGRAM_TOKEN= #api token (instruction: https://core.telegram.org/bots/features#botfather) \ No newline at end of file
diff --git a/.gitignore b/.gitignore
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--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.env
+pose.db \ No newline at end of file
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..f288702
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
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+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..a50211c
--- /dev/null
+++ b/README.md
@@ -0,0 +1,224 @@
+# Pose
+
+**Pose** — пересыльщик сообщений из источников (сейчас RSS/Atom/JsonFeed) в
+целевые сервисы (пока только Телеграм).
+
+При этом есть контроль дедупликации засчёт простого текстового файла с уже
+обработанными сообщениями.
+
+## Установка
+
+### Требования
+
+- Go 1.25.0 или выше
+
+### Сборка из исходников
+
+```bash
+go install go.neonxp.ru/pose@latest
+```
+
+## Конфигурация
+
+### Переменные окружения
+
+Создайте файл `.env` на основе шаблона `.env.dist`:
+
+```bash
+cp .env.dist .env
+```
+
+Отредактируйте `.env` и укажите токен вашего Telegram-бота:
+
+```env
+TELEGRAM_TOKEN=ваш_токен_бота
+```
+
+> **Примечание**: Для получения токена бота обратитесь к [@BotFather](https://t.me/BotFather) в Telegram.
+
+### Конфигурационный файл
+
+Основная конфигурация находится в файле `config.conf`:
+
+```conf
+db_file "./pose.db";
+
+sources {
+ feed "название_ленты" {
+ url "https://neonxp.ru/feed/";
+ scrape_interval "10m";
+ }
+}
+
+targets {
+ telegram {
+ token TELEGRAM_TOKEN;
+ group "-1001234567890";
+ }
+}
+```
+
+#### Параметры конфигурации
+
+**Глобальные параметры:**
+
+- `db_file` — путь к файлу базы данных для дедупликации (по умолчанию: `./pose.db`)
+
+**Блок `sources`:**
+
+- `feed` — определение RSS-ленты
+ - `url` — URL RSS/Atom-ленты (обязательный параметр)
+ - `scrape_interval` — интервал проверки ленты (по умолчанию: `10m`)
+
+**Блок `targets`:**
+
+- `telegram` — определение Telegram-канала
+ - `token` — токен бота (можно указать напрямую или через переменную окружения)
+ - `group` — ID чата/канала (обязательный параметр)
+
+## Использование
+
+### Запуск
+
+```bash
+./pose -config config.conf
+```
+
+Флаг `-config` позволяет указать путь к конфигурационному файлу (по умолчанию: `config.conf`).
+
+### Управление процессом
+
+Приложение поддерживает корректное завершение работы через сигналы `SIGINT` (Ctrl+C) и `SIGTERM`.
+
+## Архитектура
+
+### Структура проекта
+
+```
+pose/
+├── cmd/
+│ └── pose/
+│ └── main.go # Точка входа приложения
+├── internal/
+│ ├── application/
+│ │ └── application.go # Основная логика приложения
+│ ├── database/
+│ │ └── db.go # Простая БД для дедупликации
+│ ├── model/
+│ │ └── item.go # Модель элемента ленты
+│ ├── source/
+│ │ └── feed.go # Источник данных (RSS)
+│ └── target/
+│ ├── telegram.go # Целевой канал (Telegram)
+│ └── html.go # Обработка HTML
+├── config.conf # Конфигурационный файл
+├── .env.dist # Шаблон переменных окружения
+├── go.mod # Go модуль
+└── README.md # Этот файл
+```
+
+### Компоненты
+
+#### Application
+
+Основной компонент, который координирует работу источников и целей:
+
+- Создаёт и управляет источниками данных
+- Создаёт и управляет целевыми каналами
+- Распределяет элементы из источников по целям
+- Управляет жизненным циклом приложения
+
+#### Source (Источники)
+
+Интерфейс для источников данных:
+
+```go
+type Source interface {
+ Retrive(ctx context.Context) <-chan model.Item
+}
+```
+
+**Feed** — реализация источника для RSS/Atom-лент:
+
+- Периодически опрашивает указанный URL
+- Парсит ленту с помощью библиотеки `gofeed`
+- Отправляет элементы в общий канал
+
+#### Target (Цели)
+
+Интерфейс для целевых каналов:
+
+```go
+type Target interface {
+ Send(ctx context.Context) chan<- model.Item
+}
+```
+
+**Telegram** — реализация цели для Telegram:
+
+- Получает элементы из канала
+- Форматирует сообщение в HTML
+- Санитайзирует HTML с помощью `bluemonday`
+- Отправляет сообщение в указанный чат/канал
+
+#### Database
+
+Простая база данных для дедупликации:
+
+- `Exists(string) bool` — проверяет, была ли уже обработана запись
+- `Append(string) error` — добавляет запись в базу
+- `Close() error` — закрывает базу данных
+
+База данных хранит ID обработанных элементов в текстовом файле (по одной записи на строку).
+
+#### Model
+
+**Item** — модель элемента ленты:
+
+```go
+type Item struct {
+ ID string // Уникальный идентификатор
+ Date time.Time // Дата публикации
+ Title string // Заголовок
+ Summary string // Краткое описание
+ Link string // Ссылка на оригинал
+ Img string // URL изображения (опционально)
+}
+```
+
+Метод `BuildMessage()` форматирует элемент в HTML-сообщение для последующей отправки.
+
+## Зависимости
+
+- [`github.com/mmcdole/gofeed`](https://github.com/mmcdole/gofeed) — парсер RSS/Atom лент
+- [`go.neonxp.ru/conf`](https://go.neonxp.ru/conf) — библиотека конфигурации
+- [`github.com/microcosm-cc/bluemonday`](https://github.com/microcosm-cc/bluemonday) — санитайзер HTML
+
+## Лицензия
+
+Этот проект распространяется под лицензией **GNU General Public License v3.0** (GPLv3).
+
+Подробности см. в файле [LICENSE](LICENSE).
+
+## Автор
+
+**Александр NeonXP Кирюхин** — [https://neonxp.ru](https://neonxp.ru) <i@neonxp.ru>
+
+## Лицензия
+
+```
+Copyright (C) 2024 Alexander NeonXP Kiryukhin <i@neonxp.ru>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <https://www.gnu.org/licenses/>.
+```
diff --git a/cmd/pose/main.go b/cmd/pose/main.go
new file mode 100644
index 0000000..4f206ba
--- /dev/null
+++ b/cmd/pose/main.go
@@ -0,0 +1,37 @@
+package main
+
+import (
+ "context"
+ "flag"
+ "log/slog"
+ "os"
+ "os/signal"
+
+ "go.neonxp.ru/conf"
+ "go.neonxp.ru/pose/internal/application"
+)
+
+var cfgFile = flag.String("config", "config.conf", "Path to config file")
+
+func main() {
+ ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt, os.Kill)
+ defer cancel()
+
+ flag.Parse()
+ cfg, err := conf.LoadFile(*cfgFile)
+ if err != nil {
+ panic(err)
+ }
+ app, err := application.New(cfg, slog.Default())
+ if err != nil {
+ panic(err)
+ }
+ defer func() {
+ if err := app.Close(); err != nil {
+ panic(err)
+ }
+ }()
+ if err := app.Run(ctx); err != nil {
+ panic(err)
+ }
+}
diff --git a/config.conf b/config.conf
new file mode 100644
index 0000000..e157138
--- /dev/null
+++ b/config.conf
@@ -0,0 +1,15 @@
+db_file "./pose.db";
+
+sources {
+ feed "neonxp.ru feed" {
+ url "https://neonxp.ru/feed/";
+ scrape_interval "10m";
+ }
+}
+
+targets {
+ telegram {
+ token TELEGRAM_TOKEN;
+ group "-1003888840756";
+ }
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..5e85592
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,25 @@
+module go.neonxp.ru/pose
+
+go 1.25.0
+
+require (
+ github.com/mmcdole/gofeed v1.3.0
+ go.neonxp.ru/conf v1.0.1
+)
+
+require (
+ github.com/aymerick/douceur v0.2.0 // indirect
+ github.com/gorilla/css v1.0.1 // indirect
+)
+
+require (
+ github.com/PuerkitoBio/goquery v1.8.0 // indirect
+ github.com/andybalholm/cascadia v1.3.1 // indirect
+ github.com/json-iterator/go v1.1.12 // indirect
+ github.com/microcosm-cc/bluemonday v1.0.27
+ github.com/mmcdole/goxpp v1.1.1-0.20240225020742-a0c311522b23 // indirect
+ github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+ github.com/modern-go/reflect2 v1.0.2 // indirect
+ golang.org/x/net v0.26.0 // indirect
+ golang.org/x/text v0.16.0 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..1092792
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,45 @@
+github.com/PuerkitoBio/goquery v1.8.0 h1:PJTF7AmFCFKk1N6V6jmKfrNH9tV5pNE6lZMkG0gta/U=
+github.com/PuerkitoBio/goquery v1.8.0/go.mod h1:ypIiRMtY7COPGk+I/YbZLbxsxn9g5ejnI2HSMtkjZvI=
+github.com/andybalholm/cascadia v1.3.1 h1:nhxRkql1kdYCc8Snf7D5/D3spOX+dBgjA6u8x004T2c=
+github.com/andybalholm/cascadia v1.3.1/go.mod h1:R4bJ1UQfqADjvDa4P6HZHLh/3OxWWEqc0Sk8XGwHqvA=
+github.com/aymerick/douceur v0.2.0 h1:Mv+mAeH1Q+n9Fr+oyamOlAkUNPWPlA8PPGR0QAaYuPk=
+github.com/aymerick/douceur v0.2.0/go.mod h1:wlT5vV2O3h55X9m7iVYN0TBM0NH/MmbLnd30/FjWUq4=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/gorilla/css v1.0.1 h1:ntNaBIghp6JmvWnxbZKANoLyuXTPZ4cAMlo6RyhlbO8=
+github.com/gorilla/css v1.0.1/go.mod h1:BvnYkspnSzMmwRK+b8/xgNPLiIuNZr6vbZBTPQ2A3b0=
+github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
+github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
+github.com/microcosm-cc/bluemonday v1.0.27 h1:MpEUotklkwCSLeH+Qdx1VJgNqLlpY2KXwXFM08ygZfk=
+github.com/microcosm-cc/bluemonday v1.0.27/go.mod h1:jFi9vgW+H7c3V0lb6nR74Ib/DIB5OBs92Dimizgw2cA=
+github.com/mmcdole/gofeed v1.3.0 h1:5yn+HeqlcvjMeAI4gu6T+crm7d0anY85+M+v6fIFNG4=
+github.com/mmcdole/gofeed v1.3.0/go.mod h1:9TGv2LcJhdXePDzxiuMnukhV2/zb6VtnZt1mS+SjkLE=
+github.com/mmcdole/goxpp v1.1.1-0.20240225020742-a0c311522b23 h1:Zr92CAlFhy2gL+V1F+EyIuzbQNbSgP4xhTODZtrXUtk=
+github.com/mmcdole/goxpp v1.1.1-0.20240225020742-a0c311522b23/go.mod h1:v+25+lT2ViuQ7mVxcncQ8ch1URund48oH+jhjiwEgS8=
+github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
+github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
+github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
+github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
+github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
+github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
+go.neonxp.ru/conf v1.0.1 h1:UstM222KNfYWC24IbF5/lyPy0chsGf0Fs1zkSwm4KXU=
+go.neonxp.ru/conf v1.0.1/go.mod h1:MnkH7DCAEW50BTyuxbAUw6zhmL1NXdOqEr0VKTVCazo=
+golang.org/x/net v0.0.0-20210916014120-12bc252f5db8/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.26.0 h1:soB7SVo0PWrY4vPW/+ay0jKDNScG2X9wFeYlXIvJsOQ=
+golang.org/x/net v0.26.0/go.mod h1:5YKkiSynbBIh3p6iOc/vibscux0x38BZDkn8sCUPxHE=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4=
+golang.org/x/text v0.16.0/go.mod h1:GhwF1Be+LQoKShO3cGOHzqOgRrGaYc9AvblQOmPVHnI=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/internal/application/application.go b/internal/application/application.go
new file mode 100644
index 0000000..d61f38c
--- /dev/null
+++ b/internal/application/application.go
@@ -0,0 +1,148 @@
+package application
+
+import (
+ "context"
+ "fmt"
+ "log/slog"
+ "os"
+ "sync"
+
+ cm "go.neonxp.ru/conf/model"
+ "go.neonxp.ru/pose/internal/database"
+ "go.neonxp.ru/pose/internal/model"
+ "go.neonxp.ru/pose/internal/source"
+ "go.neonxp.ru/pose/internal/target"
+)
+
+type Application struct {
+ logger *slog.Logger
+ db *database.DB
+ sources []Source
+ targets []Target
+ wg sync.WaitGroup
+}
+
+func New(cfg cm.Group, logger *slog.Logger) (*Application, error) {
+ dbfile := cfg.Get("db_file").StringExt("", os.LookupEnv)
+ db, err := database.New(dbfile)
+ if err != nil {
+ return nil, fmt.Errorf("failed create db: %w", err)
+ }
+
+ app := &Application{
+ logger: logger,
+ db: db,
+ sources: []Source{},
+ targets: []Target{},
+ wg: sync.WaitGroup{},
+ }
+
+ //Build sources
+ for _, it := range cfg.Get("sources").Group() {
+ name := it.String()
+ switch it.Name {
+ case cm.Ident("feed"):
+ src, err := source.NewFeed(
+ it.Group(),
+ app.logger.With(slog.String("source", name)),
+ )
+ if err != nil {
+ return nil, err
+ }
+ app.sources = append(app.sources, src)
+ default:
+ return nil, fmt.Errorf("unknown source type: %s", it.Name)
+ }
+ }
+
+ // Build targets
+ for _, it := range cfg.Get("targets").Group() {
+ name := it.String()
+ switch it.Name {
+ case cm.Ident("telegram"):
+ tgt, err := target.NewTelegram(
+ it.Group(),
+ app.logger.With(slog.String("target", name)),
+ )
+ if err != nil {
+ return nil, err
+ }
+ app.targets = append(app.targets, tgt)
+ default:
+ return nil, fmt.Errorf("unknown target type: %s", it.Name)
+ }
+ }
+
+ return app, nil
+}
+
+func (a *Application) Run(ctx context.Context) error {
+ defer a.wg.Wait()
+
+ // Сборный канал со всех источников
+ inChan := a.inChan(ctx)
+
+ // Срез каналов всех потребителей
+ outChans := a.outChans(ctx)
+
+ // Перекладывание сообщений из inChan во все outChans
+ for it := range inChan {
+ for _, ch := range outChans {
+ select {
+ case ch <- it:
+ slog.InfoContext(ctx, "trying send feed item to target", slog.String("id", it.ID))
+ default:
+ slog.WarnContext(ctx, "feed item ignored because no free targets")
+ }
+ }
+ }
+
+ return nil
+}
+
+func (a *Application) Close() error {
+ return a.db.Close()
+}
+
+func (a *Application) inChan(ctx context.Context) chan model.Item {
+ inChan := make(chan model.Item, 1)
+ a.wg.Go(func() {
+ <-ctx.Done()
+ close(inChan)
+ })
+
+ for _, s := range a.sources {
+ a.wg.Go(func() {
+ for it := range s.Retrive(ctx) {
+ if a.db.Exists(it.ID) {
+ continue
+ }
+ if err := a.db.Append(it.ID); err != nil {
+ a.logger.ErrorContext(ctx, "failed to add item to deduplication db", slog.Any("err", err))
+ continue
+ }
+
+ inChan <- it
+ }
+ })
+ }
+
+ return inChan
+}
+
+func (a *Application) outChans(ctx context.Context) []chan<- model.Item {
+ outChans := make([]chan<- model.Item, len(a.targets))
+
+ for i, t := range a.targets {
+ outChans[i] = t.Send(ctx)
+ }
+ return outChans
+}
+
+type Source interface {
+ Retrive(ctx context.Context) <-chan model.Item
+}
+
+type Target interface {
+ Send(ctx context.Context) chan<- model.Item
+}
diff --git a/internal/database/db.go b/internal/database/db.go
new file mode 100644
index 0000000..2fbfe74
--- /dev/null
+++ b/internal/database/db.go
@@ -0,0 +1,54 @@
+// Package database простейшая БД которая позволяет только два действия:
+//
+// 1. сохранить некую строку - `Append(string) error`
+// 2. ответить на вопрос сохранялась ли уже когда либо эта строка -
+// `Exists(string) bool`
+//
+// Нужна для дедупликации публикуемых записей
+package database
+
+import (
+ "bytes"
+ "fmt"
+ "os"
+)
+
+type DB struct {
+ fp *os.File
+ cache map[string]struct{}
+}
+
+func New(path string) (*DB, error) {
+ cache, _ := os.ReadFile(path) // Ignore if no DB file
+
+ fp, err := os.OpenFile(path, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o644)
+ if err != nil {
+ return nil, fmt.Errorf("failed open db file for write: %w", err)
+ }
+ db := &DB{
+ fp: fp,
+ cache: map[string]struct{}{},
+ }
+ for part := range bytes.SplitSeq(cache, []byte("\n")) {
+ db.cache[string(part)] = struct{}{}
+ }
+
+ return db, nil
+}
+
+func (d *DB) Close() error {
+ return d.fp.Close()
+}
+
+func (d *DB) Exists(s string) bool {
+ _, ok := d.cache[s]
+ return ok
+}
+
+func (d *DB) Append(s string) error {
+ if d.Exists(s) {
+ return nil
+ }
+ _, err := fmt.Fprintln(d.fp, s)
+ return err
+}
diff --git a/internal/model/item.go b/internal/model/item.go
new file mode 100644
index 0000000..c18d830
--- /dev/null
+++ b/internal/model/item.go
@@ -0,0 +1,24 @@
+package model
+
+import (
+ "fmt"
+ "time"
+)
+
+type Item struct {
+ ID string
+ Date time.Time
+ Title string
+ Summary string
+ Link string
+ Img string
+}
+
+func (it *Item) BuildMessage() string {
+ return fmt.Sprintf(
+ `<b>%s</b><br /><br />%s<br />Читать дальше: <a href="%[3]s">%[3]s</a>`,
+ it.Title,
+ it.Summary,
+ it.Link,
+ )
+}
diff --git a/internal/source/feed.go b/internal/source/feed.go
new file mode 100644
index 0000000..31f8535
--- /dev/null
+++ b/internal/source/feed.go
@@ -0,0 +1,95 @@
+package source
+
+import (
+ "context"
+ "errors"
+ "fmt"
+ "log/slog"
+ "time"
+
+ "github.com/mmcdole/gofeed"
+ cm "go.neonxp.ru/conf/model"
+ "go.neonxp.ru/pose/internal/model"
+)
+
+var (
+ ErrNoFeedAddress = errors.New("no feed address")
+)
+
+type Feed struct {
+ logger *slog.Logger
+ feed string
+ scrapeInterval time.Duration
+ feedParser *gofeed.Parser
+}
+
+func NewFeed(cfg cm.Group, logger *slog.Logger) (*Feed, error) {
+ feedSource := cfg.Get("url").String()
+ if feedSource == "" {
+ return nil, ErrNoFeedAddress
+ }
+ durStr := cfg.Get("scrape_interval").String()
+ if durStr == "" {
+ durStr = "10m"
+ }
+ dur, err := time.ParseDuration(durStr)
+ if err != nil {
+ return nil, fmt.Errorf("failed parse duration at source: %w", err)
+ }
+ return &Feed{
+ feed: feedSource,
+ scrapeInterval: dur,
+ feedParser: gofeed.NewParser(),
+ }, nil
+}
+
+func (a *Feed) Retrive(ctx context.Context) <-chan model.Item {
+ out := make(chan model.Item)
+ ticker := time.NewTicker(a.scrapeInterval)
+ go func() {
+ <-ctx.Done()
+ ticker.Stop()
+ }()
+ go func() {
+ defer close(out)
+ for _, item := range a.scrapeFeed(ctx) {
+ out <- item
+ }
+ for range ticker.C {
+ for _, item := range a.scrapeFeed(ctx) {
+ out <- item
+ }
+ }
+ }()
+
+ return out
+}
+
+func (a *Feed) scrapeFeed(ctx context.Context) []model.Item {
+ feed, err := a.feedParser.ParseURLWithContext(a.feed, ctx)
+ if err != nil {
+ a.logger.Error("failed parse feed", slog.Any("err", err))
+ return nil
+ }
+ result := make([]model.Item, 0, len(feed.Items))
+ for _, it := range feed.Items {
+ date := time.Now()
+ if it.PublishedParsed != nil {
+ date = *it.PublishedParsed
+ }
+ image := ""
+ if it.Image != nil {
+ image = it.Image.URL
+ }
+ result = append(result, model.Item{
+ ID: it.GUID,
+ Date: date,
+ Title: it.Title,
+ Summary: it.Description,
+ Link: it.Link,
+ Img: image,
+ })
+ }
+
+ return result
+}
diff --git a/internal/target/html.go b/internal/target/html.go
new file mode 100644
index 0000000..84d8662
--- /dev/null
+++ b/internal/target/html.go
@@ -0,0 +1,14 @@
+package target
+
+import "strings"
+
+func processHTML(html string) string {
+ html = strings.ReplaceAll(html, "\n", " ")
+ html = strings.ReplaceAll(html, "<br>", "\n")
+ html = strings.ReplaceAll(html, "<br />", "\n")
+ html = strings.ReplaceAll(html, "<br/>", "\n")
+ html = strings.ReplaceAll(html, "<p>", "")
+ html = strings.ReplaceAll(html, "</p>", "\n")
+
+ return html
+}
diff --git a/internal/target/telegram.go b/internal/target/telegram.go
new file mode 100644
index 0000000..f4d4aff
--- /dev/null
+++ b/internal/target/telegram.go
@@ -0,0 +1,112 @@
+package target
+
+import (
+ "context"
+ "errors"
+ "fmt"
+ "io"
+ "log/slog"
+ "net/http"
+ "net/url"
+ "os"
+ "time"
+
+ "github.com/microcosm-cc/bluemonday"
+ cm "go.neonxp.ru/conf/model"
+ "go.neonxp.ru/pose/internal/model"
+)
+
+var (
+ ErrNoToken = errors.New("no api token")
+ ErrNoGroup = errors.New("no group")
+)
+
+const telegramRequestTimeout = 30 * time.Second
+const telegramMaxItemsChan = 32
+
+type Telegram struct {
+ logger *slog.Logger
+ apiToken string
+ group string
+ client *http.Client
+ policy *bluemonday.Policy
+}
+
+func NewTelegram(cfg cm.Group, logger *slog.Logger) (*Telegram, error) {
+ token := cfg.Get("token").StringExt("", os.LookupEnv)
+ if token == "" {
+ return nil, ErrNoToken
+ }
+ group := cfg.Get("group").StringExt("", os.LookupEnv)
+ if group == "" {
+ return nil, ErrNoGroup
+ }
+
+ pol := bluemonday.NewPolicy()
+
+ pol.AllowAttrs("href").OnElements("a")
+ pol.AllowAttrs("class").OnElements("span")
+ pol.AllowElements("p", "br", "b", "strong", "i", "em", "u", "ins", "s", "strike", "del", "code", "pre", "blockquote")
+
+ return &Telegram{
+ logger: logger,
+ apiToken: token,
+ group: group,
+ client: &http.Client{Timeout: telegramRequestTimeout},
+ policy: pol,
+ }, nil
+}
+
+func (t *Telegram) Send(ctx context.Context) chan<- model.Item {
+ ch := make(chan model.Item, telegramMaxItemsChan)
+ go func() {
+ defer close(ch)
+ for {
+ select {
+ case <-ctx.Done():
+ return
+ case item := <-ch:
+ if err := t.sendMessage(item); err != nil {
+ t.logger.ErrorContext(ctx, "failed send feed item to telegram", slog.Any("err", err))
+ continue
+ }
+ t.logger.InfoContext(ctx, "send item to telegram", slog.String("id", item.ID))
+ }
+ }
+ }()
+
+ return ch
+}
+
+func (t *Telegram) sendMessage(it model.Item) error {
+ sendMessageURL := fmt.Sprintf("https://api.telegram.org/bot%s/sendMessage", t.apiToken)
+
+ message := it.BuildMessage()
+ message = t.policy.Sanitize(message)
+ message = processHTML(message)
+
+ params := url.Values{}
+ params.Set("chat_id", t.group)
+ params.Set("text", message)
+ params.Set("parse_mode", "HTML")
+
+ resp, err := t.client.PostForm(sendMessageURL, params)
+ if err != nil {
+ return err
+ }
+
+ if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+ msg, err := io.ReadAll(resp.Body)
+ if err != nil {
+ return fmt.Errorf("failed read error body: %w", err)
+ }
+ return fmt.Errorf(
+ "invalid status code %d (%s): %s",
+ resp.StatusCode,
+ resp.Status,
+ string(msg),
+ )
+ }
+
+ return nil
+}