Initial commit.

Signed-off-by: Pavel Kirilin <win10@list.ru>

.dockerignore

+.venv/
+**/__pycache__/

.gitignore

+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/latest/usage/project/#working-with-version-control
+.pdm.toml
+.pdm-python
+.pdm-build/
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/

.gitlab-ci.yml

+stages:
+  - build
+  - deploy
+
+build:
+  stage: build
+  image:
+    name: docker:26.0.0-cli
+    entrypoint: [""]
+  tags:
+    - kube
+  only:
+    - master
+  script:
+    - docker login --password "$CI_JOB_TOKEN" --username "$CI_REGISTRY_USER" "$CI_REGISTRY"
+    - docker build --progress=plain -t "$CI_REGISTRY/telegram-bots/autotex:latest" .
+    - docker push "$CI_REGISTRY/telegram-bots/autotex:latest"
+
+deploy:
+  stage: deploy
+  image:
+    name: alpine/helm:3.13.2
+    entrypoint: ["/bin/sh", "-c"]
+  tags:
+    - kube
+  only:
+    - master
+  script:
+    - helm
+      upgrade
+      autotex
+      ./helm
+      --install
+      --wait
+      --create-namespace
+      --atomic
+      --timeout 2m
+      --namespace "$NAMESPACE"
+      -f "$HELM_CONFIG"
+      --set image.repository="$CI_REGISTRY/telegram-bots/autotex"
+      --set image.tag="latest"
+
+    

Dockerfile

+FROM python:3.12-alpine3.19
+
+RUN apk update && apk add --no-cache \
+  imagemagick \ 
+  imagemagick-pdf \ 
+  texlive \
+  texmf-dist-langcyrillic \
+  texmf-dist-latexextra
+
+# RUN apt update && apt install -y \
+#   imagemagick \
+#   texlive-latex-base \
+#   texlive-latex-extra \ 
+#   texlive-lang-cyrillic \
+#   && rm -rf /var/lib/apt/lists/*
+
+COPY . .
+
+RUN pip install .
+
+CMD ["python", "-m", "autotex"]

autotex/__main__.py

+import asyncio
+import secrets
+import logging
+from pathlib import Path
+import sys
+import tempfile
+
+from aiogram import Bot, Dispatcher, types
+import shutil
+import os
+import dotenv
+
+dotenv.load_dotenv()
+
+pdftex_bin = shutil.which("pdflatex")
+magick_bin = shutil.which("magick")
+if pdftex_bin is None:
+    raise ValueError("PDFTex is not installed")
+
+if magick_bin is None:
+    raise ValueError("ImageMagick is not installed")
+
+dp = Dispatcher()
+bot = Bot(token=os.environ["BOT_TOKEN"])
+
+
+PREAMBULA = """\
+\\documentclass[preview]{standalone}
+\\usepackage[utf8]{inputenc}
+\\usepackage[russian]{babel}
+\\begin{document}
+%%CONTENT%%
+\\end{document}
+"""
+
+
+def has_block(text: str, start: str, end: str | None = None) -> bool:
+    start_pos = text.find(start)
+    if start_pos == -1:
+        return False
+    if end is None:
+        end = start
+    end_pos = text.find(end, start_pos + 1)
+    if end_pos == -1:
+        return False
+
+    return True
+
+
+async def send_latex(message: types.Message) -> None:
+    if message.text is None:
+        return
+    with tempfile.TemporaryDirectory() as tmpdir:
+        cwd = Path(tmpdir)
+        name = secrets.token_urlsafe(10)
+        input_file = cwd / f"{name}.tex"
+        with input_file.open("w") as istream:
+            istream.write(PREAMBULA.replace("%%CONTENT%%", message.text))
+            istream.flush()
+
+        process = await asyncio.subprocess.create_subprocess_exec(
+            pdftex_bin,  # type: ignore
+            "-no-shell-escape",
+            "-interaction",
+            "batchmode",
+            str(input_file),
+            cwd=cwd,
+        )
+        code = await process.wait()
+        if code != 0:
+            await bot.send_document(
+                chat_id=message.chat.id,
+                document=types.FSInputFile(cwd / f"{name}.log", filename="error.log"),
+                caption="Found error while processing latex.",
+            )
+            return
+        magick_process = await asyncio.subprocess.create_subprocess_exec(
+            magick_bin,  # type: ignore
+            "convert",
+            "-density",
+            "250",
+            f"{name}.pdf",
+            "-quality",
+            "100",
+            f"{name}.jpg",
+            cwd=cwd,
+            stdout=asyncio.subprocess.PIPE,
+        )
+        magic_code = await magick_process.wait()
+        out = await magick_process.stdout.read()  # type: ignore
+        if magic_code != 0:
+            await message.reply(
+                text=f"ImageMagic unable to convert output to image: \n{out.decode()}",
+            )
+        await bot.send_photo(
+            photo=types.FSInputFile(cwd / f"{name}.jpg"),
+            chat_id=message.chat.id,
+            reply_to_message_id=message.message_id,
+        )
+
+
+@dp.message()
+async def message(message: types.Message) -> None:
+    if message.text is None:
+        return
+    if (
+        has_block(message.text, "$$")
+        or has_block(message.text, "$")
+        or has_block(message.text, r"\begin", r"\end")
+    ):
+        logging.info("Found LaTeX. Converting.")
+        await send_latex(message)
+
+
+@dp.update()
+async def update_message(update: types.update.Update):
+    if update.message is None:
+        return
+    if update.message.text is None:
+        return
+    if (
+        has_block(update.message.text, "$$")
+        or has_block(update.message.text, "$")
+        or has_block(update.message.text, r"\begin", r"\end")
+    ):
+        logging.info("Found LaTeX. Converting.")
+        await send_latex(update.message)
+
+
+async def main():
+    await dp.start_polling(bot)
+
+
+if __name__ == "__main__":
+    logging.basicConfig(level=logging.INFO, stream=sys.stdout)
+    asyncio.run(main())

helm/.helmignore

+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

helm/Chart.yaml

+apiVersion: v2
+name: autotex
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "1.16.0"

helm/templates/NOTES.txt

+Bot is deployed

helm/templates/_helpers.tpl

+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "autotex.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "autotex.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "autotex.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "autotex.labels" -}}
+helm.sh/chart: {{ include "autotex.chart" . }}
+{{ include "autotex.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "autotex.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "autotex.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "autotex.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "autotex.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

helm/templates/deployment.yaml

+{{- if not .Values.botToken }}
+  {{ fail ".Values.botToken should be set" }}
+{{- end }}
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "autotex.fullname" . }}
+  labels:
+    {{- include "autotex.labels" . | nindent 4 }}
+spec:
+  {{- if not .Values.autoscaling.enabled }}
+  replicas: {{ .Values.replicaCount }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "autotex.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "autotex.labels" . | nindent 8 }}
+        {{- with .Values.podLabels }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "autotex.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - name: http
+              containerPort: {{ .Values.service.port }}
+              protocol: TCP
+          livenessProbe:
+            {{- toYaml .Values.livenessProbe | nindent 12 }}
+          readinessProbe:
+            {{- toYaml .Values.readinessProbe | nindent 12 }}
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          {{- with .Values.volumeMounts }}
+          volumeMounts:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          environment:
+            - name: "BOT_TOKEN"
+              value: {{ .Values.botToken | quote }}
+          {{- range $env_name, $env_val := .Values.envs }}
+            - name: {{ $env_name | quote }}
+              value: {{ $env_val | quote }}
+          {{- end }}
+      {{- with .Values.volumes }}
+      volumes:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

helm/templates/hpa.yaml

+{{- if .Values.autoscaling.enabled }}
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "autotex.fullname" . }}
+  labels:
+    {{- include "autotex.labels" . | nindent 4 }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "autotex.fullname" . }}
+  minReplicas: {{ .Values.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.autoscaling.maxReplicas }}
+  metrics:
+    {{- if .Values.autoscaling.targetCPUUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.autoscaling.targetCPUUtilizationPercentage }}
+    {{- end }}
+    {{- if .Values.autoscaling.targetMemoryUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: memory
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.autoscaling.targetMemoryUtilizationPercentage }}
+    {{- end }}
+{{- end }}

helm/templates/ingress.yaml

+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "autotex.fullname" . -}}
+{{- $svcPort := .Values.service.port -}}
+{{- if and .Values.ingress.className (not (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion)) }}
+  {{- if not (hasKey .Values.ingress.annotations "kubernetes.io/ingress.class") }}
+  {{- $_ := set .Values.ingress.annotations "kubernetes.io/ingress.class" .Values.ingress.className}}
+  {{- end }}
+{{- end }}
+{{- if semverCompare ">=1.19-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1
+{{- else if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    {{- include "autotex.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if and .Values.ingress.className (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion) }}
+  ingressClassName: {{ .Values.ingress.className }}
+  {{- end }}
+  {{- if .Values.ingress.tls }}
+  tls:
+    {{- range .Values.ingress.tls }}
+    - hosts:
+        {{- range .hosts }}
+        - {{ . | quote }}
+        {{- end }}
+      secretName: {{ .secretName }}
+    {{- end }}
+  {{- end }}
+  rules:
+    {{- range .Values.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+          {{- range .paths }}
+          - path: {{ .path }}
+            {{- if and .pathType (semverCompare ">=1.18-0" $.Capabilities.KubeVersion.GitVersion) }}
+            pathType: {{ .pathType }}
+            {{- end }}
+            backend:
+              {{- if semverCompare ">=1.19-0" $.Capabilities.KubeVersion.GitVersion }}
+              service:
+                name: {{ $fullName }}
+                port:
+                  number: {{ $svcPort }}
+              {{- else }}
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+              {{- end }}
+          {{- end }}
+    {{- end }}
+{{- end }}

helm/templates/service.yaml

+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "autotex.fullname" . }}
+  labels:
+    {{- include "autotex.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "autotex.selectorLabels" . | nindent 4 }}

helm/templates/serviceaccount.yaml

+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "autotex.serviceAccountName" . }}
+  labels:
+    {{- include "autotex.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}

helm/values.yaml

+# Default values for autotex.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+  repository: telegram-bots/autotex
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: ""
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+botToken: null
+
+envs: {}
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+podLabels: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
+
+securityContext: {}
+  # capabilities:
+  #   drop:
+  #   - ALL
+  # readOnlyRootFilesystem: true
+  # runAsNonRoot: true
+  # runAsUser: 1000
+
+service:
+  type: ClusterIP
+  port: 80
+
+ingress:
+  enabled: false
+  className: ""
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: chart-example.local
+      paths:
+        - path: /
+          pathType: ImplementationSpecific
+  tls: []
+  #  - secretName: chart-example-tls
+  #    hosts:
+  #      - chart-example.local
+
+resources: {}
+  # We usually recommend not to specify default resources and to leave this as a conscious
+  # choice for the user. This also increases chances charts run on environments with little
+  # resources, such as Minikube. If you do want to specify resources, uncomment the following
+  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+  # limits:
+  #   cpu: 100m
+  #   memory: 128Mi
+  # requests:
+  #   cpu: 100m
+  #   memory: 128Mi
+
+livenessProbe:
+  httpGet:
+    path: /
+    port: http
+readinessProbe:
+  httpGet:
+    path: /
+    port: http
+
+autoscaling:
+  enabled: false
+  minReplicas: 1
+  maxReplicas: 100
+  targetCPUUtilizationPercentage: 80
+  # targetMemoryUtilizationPercentage: 80
+
+# Additional volumes on the output Deployment definition.
+volumes: []
+# - name: foo
+#   secret:
+#     secretName: mysecret
+#     optional: false
+
+# Additional volumeMounts on the output Deployment definition.
+volumeMounts: []
+# - name: foo
+#   mountPath: "/etc/foo"
+#   readOnly: true
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}

pyproject.toml

+[tool.poetry]
+name = "autotex"
+version = "0.1.0"
+description = ""
+authors = ["Pavel Kirilin <win10@list.ru>"]
+readme = "README.md"
+
+[tool.poetry.dependencies]
+python = "^3.11"
+aiogram = "^3.10.0"
+python-dotenv = "^1.0.1"
+
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"