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main.py
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main.py
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import requests
import json
import urllib.parse
from typing import Optional
import re
import unicodedata
import os
def define_env(env):
no_template = os.environ.get('NO_TEMPLATE', False)
# Define the character map and locales as in the original JavaScript version
CHAR_MAP = {"$":"dollar","%":"percent","&":"and","<":"less",">":"greater","|":"or","¢":"cent","£":"pound","¤":"currency","¥":"yen","©":"(c)","ª":"a","®":"(r)","º":"o","À":"A","Á":"A","Â":"A","Ã":"A","Ä":"A","Å":"A","Æ":"AE","Ç":"C","È":"E","É":"E","Ê":"E","Ë":"E","Ì":"I","Í":"I","Î":"I","Ï":"I","Ð":"D","Ñ":"N","Ò":"O","Ó":"O","Ô":"O","Õ":"O","Ö":"O","Ø":"O","Ù":"U","Ú":"U","Û":"U","Ü":"U","Ý":"Y","Þ":"TH","ß":"ss","à":"a","á":"a","â":"a","ã":"a","ä":"a","å":"a","æ":"ae","ç":"c","è":"e","é":"e","ê":"e","ë":"e","ì":"i","í":"i","î":"i","ï":"i","ð":"d","ñ":"n","ò":"o","ó":"o","ô":"o","õ":"o","ö":"o","ø":"o","ù":"u","ú":"u","û":"u","ü":"u","ý":"y","þ":"th","ÿ":"y","Ā":"A","ā":"a","Ă":"A","ă":"a","Ą":"A","ą":"a","Ć":"C","ć":"c","Č":"C","č":"c","Ď":"D","ď":"d","Đ":"DJ","đ":"dj","Ē":"E","ē":"e","Ė":"E","ė":"e","Ę":"e","ę":"e","Ě":"E","ě":"e","Ğ":"G","ğ":"g","Ģ":"G","ģ":"g","Ĩ":"I","ĩ":"i","Ī":"i","ī":"i","Į":"I","į":"i","İ":"I","ı":"i","Ķ":"k","ķ":"k","Ļ":"L","ļ":"l","Ľ":"L","ľ":"l","Ł":"L","ł":"l","Ń":"N","ń":"n","Ņ":"N","ņ":"n","Ň":"N","ň":"n","Ō":"O","ō":"o","Ő":"O","ő":"o","Œ":"OE","œ":"oe","Ŕ":"R","ŕ":"r","Ř":"R","ř":"r","Ś":"S","ś":"s","Ş":"S","ş":"s","Š":"S","š":"s","Ţ":"T","ţ":"t","Ť":"T","ť":"t","Ũ":"U","ũ":"u","Ū":"u","ū":"u","Ů":"U","ů":"u","Ű":"U","ű":"u","Ų":"U","ų":"u","Ŵ":"W","ŵ":"w","Ŷ":"Y","ŷ":"y","Ÿ":"Y","Ź":"Z","ź":"z","Ż":"Z","ż":"z","Ž":"Z","ž":"z","Ə":"E","ƒ":"f","Ơ":"O","ơ":"o","Ư":"U","ư":"u","Lj":"LJ","lj":"lj","Nj":"NJ","nj":"nj","Ș":"S","ș":"s","Ț":"T","ț":"t","ə":"e","˚":"o","Ά":"A","Έ":"E","Ή":"H","Ί":"I","Ό":"O","Ύ":"Y","Ώ":"W","ΐ":"i","Α":"A","Β":"B","Γ":"G","Δ":"D","Ε":"E","Ζ":"Z","Η":"H","Θ":"8","Ι":"I","Κ":"K","Λ":"L","Μ":"M","Ν":"N","Ξ":"3","Ο":"O","Π":"P","Ρ":"R","Σ":"S","Τ":"T","Υ":"Y","Φ":"F","Χ":"X","Ψ":"PS","Ω":"W","Ϊ":"I","Ϋ":"Y","ά":"a","έ":"e","ή":"h","ί":"i","ΰ":"y","α":"a","β":"b","γ":"g","δ":"d","ε":"e","ζ":"z","η":"h","θ":"8","ι":"i","κ":"k","λ":"l","μ":"m","ν":"n","ξ":"3","ο":"o","π":"p","ρ":"r","ς":"s","σ":"s","τ":"t","υ":"y","φ":"f","χ":"x","ψ":"ps","ω":"w","ϊ":"i","ϋ":"y","ό":"o","ύ":"y","ώ":"w","Ё":"Yo","Ђ":"DJ","Є":"Ye","І":"I","Ї":"Yi","Ј":"J","Љ":"LJ","Њ":"NJ","Ћ":"C","Џ":"DZ","А":"A","Б":"B","В":"V","Г":"G","Д":"D","Е":"E","Ж":"Zh","З":"Z","И":"I","Й":"J","К":"K","Л":"L","М":"M","Н":"N","О":"O","П":"P","Р":"R","С":"S","Т":"T","У":"U","Ф":"F","Х":"H","Ц":"C","Ч":"Ch","Ш":"Sh","Щ":"Sh","Ъ":"U","Ы":"Y","Ь":"","Э":"E","Ю":"Yu","Я":"Ya","а":"a","б":"b","в":"v","г":"g","д":"d","е":"e","ж":"zh","з":"z","и":"i","й":"j","к":"k","л":"l","м":"m","н":"n","о":"o","п":"p","р":"r","с":"s","т":"t","у":"u","ф":"f","х":"h","ц":"c","ч":"ch","ш":"sh","щ":"sh","ъ":"u","ы":"y","ь":"","э":"e","ю":"yu","я":"ya","ё":"yo","ђ":"dj","є":"ye","і":"i","ї":"yi","ј":"j","љ":"lj","њ":"nj","ћ":"c","ѝ":"u","џ":"dz","Ґ":"G","ґ":"g","Ғ":"GH","ғ":"gh","Қ":"KH","қ":"kh","Ң":"NG","ң":"ng","Ү":"UE","ү":"ue","Ұ":"U","ұ":"u","Һ":"H","һ":"h","Ә":"AE","ә":"ae","Ө":"OE","ө":"oe","Ա":"A","Բ":"B","Գ":"G","Դ":"D","Ե":"E","Զ":"Z","Է":"E\'","Ը":"Y\'","Թ":"T\'","Ժ":"JH","Ի":"I","Լ":"L","Խ":"X","Ծ":"C\'","Կ":"K","Հ":"H","Ձ":"D\'","Ղ":"GH","Ճ":"TW","Մ":"M","Յ":"Y","Ն":"N","Շ":"SH","Չ":"CH","Պ":"P","Ջ":"J","Ռ":"R\'","Ս":"S","Վ":"V","Տ":"T","Ր":"R","Ց":"C","Փ":"P\'","Ք":"Q\'","Օ":"O\'\'","Ֆ":"F","և":"EV","ء":"a","آ":"aa","أ":"a","ؤ":"u","إ":"i","ئ":"e","ا":"a","ب":"b","ة":"h","ت":"t","ث":"th","ج":"j","ح":"h","خ":"kh","د":"d","ذ":"th","ر":"r","ز":"z","س":"s","ش":"sh","ص":"s","ض":"dh","ط":"t","ظ":"z","ع":"a","غ":"gh","ف":"f","ق":"q","ك":"k","ل":"l","م":"m","ن":"n","ه":"h","و":"w","ى":"a","ي":"y","ً":"an","ٌ":"on","ٍ":"en","َ":"a","ُ":"u","ِ":"e","ْ":"","٠":"0","١":"1","٢":"2","٣":"3","٤":"4","٥":"5","٦":"6","٧":"7","٨":"8","٩":"9","پ":"p","چ":"ch","ژ":"zh","ک":"k","گ":"g","ی":"y","۰":"0","۱":"1","۲":"2","۳":"3","۴":"4","۵":"5","۶":"6","۷":"7","۸":"8","۹":"9","฿":"baht","ა":"a","ბ":"b","გ":"g","დ":"d","ე":"e","ვ":"v","ზ":"z","თ":"t","ი":"i","კ":"k","ლ":"l","მ":"m","ნ":"n","ო":"o","პ":"p","ჟ":"zh","რ":"r","ს":"s","ტ":"t","უ":"u","ფ":"f","ქ":"k","ღ":"gh","ყ":"q","შ":"sh","ჩ":"ch","ც":"ts","ძ":"dz","წ":"ts","ჭ":"ch","ხ":"kh","ჯ":"j","ჰ":"h","Ṣ":"S","ṣ":"s","Ẁ":"W","ẁ":"w","Ẃ":"W","ẃ":"w","Ẅ":"W","ẅ":"w","ẞ":"SS","Ạ":"A","ạ":"a","Ả":"A","ả":"a","Ấ":"A","ấ":"a","Ầ":"A","ầ":"a","Ẩ":"A","ẩ":"a","Ẫ":"A","ẫ":"a","Ậ":"A","ậ":"a","Ắ":"A","ắ":"a","Ằ":"A","ằ":"a","Ẳ":"A","ẳ":"a","Ẵ":"A","ẵ":"a","Ặ":"A","ặ":"a","Ẹ":"E","ẹ":"e","Ẻ":"E","ẻ":"e","Ẽ":"E","ẽ":"e","Ế":"E","ế":"e","Ề":"E","ề":"e","Ể":"E","ể":"e","Ễ":"E","ễ":"e","Ệ":"E","ệ":"e","Ỉ":"I","ỉ":"i","Ị":"I","ị":"i","Ọ":"O","ọ":"o","Ỏ":"O","ỏ":"o","Ố":"O","ố":"o","Ồ":"O","ồ":"o","Ổ":"O","ổ":"o","Ỗ":"O","ỗ":"o","Ộ":"O","ộ":"o","Ớ":"O","ớ":"o","Ờ":"O","ờ":"o","Ở":"O","ở":"o","Ỡ":"O","ỡ":"o","Ợ":"O","ợ":"o","Ụ":"U","ụ":"u","Ủ":"U","ủ":"u","Ứ":"U","ứ":"u","Ừ":"U","ừ":"u","Ử":"U","ử":"u","Ữ":"U","ữ":"u","Ự":"U","ự":"u","Ỳ":"Y","ỳ":"y","Ỵ":"Y","ỵ":"y","Ỷ":"Y","ỷ":"y","Ỹ":"Y","ỹ":"y","–":"-","‘":"\'","’":"\'","“":"\\\"","”":"\\\"","„":"\\\"","†":"+","•":"*","…":"...","₠":"ecu","₢":"cruzeiro","₣":"french franc","₤":"lira","₥":"mill","₦":"naira","₧":"peseta","₨":"rupee","₩":"won","₪":"new shequel","₫":"dong","€":"euro","₭":"kip","₮":"tugrik","₯":"drachma","₰":"penny","₱":"peso","₲":"guarani","₳":"austral","₴":"hryvnia","₵":"cedi","₸":"kazakhstani tenge","₹":"indian rupee","₺":"turkish lira","₽":"russian ruble","₿":"bitcoin","℠":"sm","™":"tm","∂":"d","∆":"delta","∑":"sum","∞":"infinity","♥":"love","元":"yuan","円":"yen","﷼":"rial","ﻵ":"laa","ﻷ":"laa","ﻹ":"lai","ﻻ":"la"}
def custom_slugify(string):
if not isinstance(string, str):
raise ValueError("slugify: string argument expected")
# Process the string
slug = ''.join(
CHAR_MAP.get(ch, ch).replace('-', ' ')
for ch in unicodedata.normalize('NFKC', string)
)
# Remove not allowed characters and apply strict filtering
slug = re.sub(r'[^\w\s$*_+~.()\'"!\-:@]+', '', slug)
slug = re.sub(r'[^A-Za-z0-9\s]', '', slug).strip()
# Replace spaces with hyphen and convert to lowercase
slug = re.sub(r'\s+', '-', slug).lower()
return slug
@env.macro
def templatesWidget(title: str, slug: str, toLoad: int = 3) -> str:
if no_template:
return '<div class="n8n-templates-widget"><p>Template widget placeholder.</p></div>'
node_for_template = 'email+imap' if title == 'Email Trigger (IMAP)' else title.replace(' ', '+')
try:
response = requests.get(f'https://api.n8n.io/api/templates/search?rows={toLoad}&search={node_for_template}&page=1&sort=views:desc')
response.raise_for_status()
data = response.json()
except requests.RequestException as e:
return f'<span class="n8n-templates-widget-more"><a href="https://n8n.io/integrations/{slug}/" target="_blank">Browse {title} integration templates</a>, or <a href="https://n8n.io/workflows/" target="_blank">search all templates</a></span>'
workflows = data.get("workflows", [])[:toLoad]
if len(workflows) < 3:
return f'<span class="n8n-templates-widget-more"><a href="https://n8n.io/integrations/{slug}/" target="_blank">Browse {title} integration templates</a>, or <a href="https://n8n.io/workflows/" target="_blank">search all templates</a></span>'
def get_workflow_details(workflow: dict) -> Optional[dict]:
try:
return {
"title": workflow["name"],
"user": workflow["user"].get("name", "n8n Community"),
"url": f'https://n8n.io/workflows/{workflow["id"]}-{custom_slugify(workflow["name"])}/',
}
except KeyError:
return None
workflow_details = [get_workflow_details(workflow) for workflow in workflows]
if any(detail is None for detail in workflow_details):
return f'<span class="n8n-templates-widget-more"><a href="https://n8n.io/integrations/{slug}/" target="_blank">Browse all {title} integration templates</a>, or <a href="https://n8n.io/workflows/" target="_blank">search all templates</a></span>'
template_html = ''.join(
f'<div class="n8n-templates-widget-template">'
f'<strong>{detail["title"]}</strong>'
f'<p class="n8n-templates-name">by {detail["user"]}</p>'
f'<a class="n8n-templates-link" href="{detail["url"]}" target="_blank">View template details</a>'
f'</div>'
for detail in workflow_details
)
return (
f'<div class="n8n-templates-widget">'
f'{template_html}'
f'<span class="n8n-templates-widget-more">'
f'<a href="https://n8n.io/integrations/{slug}/" target="_blank">Browse {title} integration templates</a>, or '
f'<a href="https://n8n.io/workflows/" target="_blank">search all templates</a>'
f'</span></div>'
)
@env.macro
def workflowDemo(workflow_json):
if no_template:
return "<div class='n8n-workflow-preview'><p>Workflow preview placeholder.</p></div>"
parsed_workflow_url = urllib.parse.urlparse(workflow_json)
if parsed_workflow_url.scheme in ["https", "http"]:
r = requests.get(url = workflow_json)
wf_data = r.json()
template_url = f'https://n8n.io/workflows/{wf_data["id"]}-{custom_slugify(wf_data["name"])}/'
workflow_json = {
"nodes": wf_data['workflow']['nodes'],
"connections": wf_data['workflow']['connections']
}
workflow_message = "View template details"
elif parsed_workflow_url.scheme == "file":
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
request_path = parsed_workflow_url.path
file_path = f'{BASE_DIR}/docs/_workflows{request_path}'
with open(file_path, 'r') as file:
wf_data = json.load(file)
template_url = f'/_workflows{request_path}'
workflow_json = {
"nodes": wf_data['nodes'],
"connections": wf_data['connections']
}
workflow_message = "View workflow file"
else:
raise ValueError("Workflow JSON must include a URL scheme")
encoded_workflow_json = urllib.parse.quote(json.dumps(workflow_json))
return f"<div class='n8n-workflow-preview'><n8n-demo hidecanvaserrors='true' clicktointeract='true' frame='false' collapseformobile='false' workflow='{encoded_workflow_json}'></n8n-demo><a href='{template_url}' target='_blank'>{workflow_message}</a></div>"