add dockerfile

Dockerfile

@@ -0,0 +1,11 @@
+FROM python:3.9
+
+WORKDIR /app
+
+COPY src/requirements.txt ./
+RUN pip install -r requirements.txt
+
+COPY src /app
+
+EXPOSE 4876
+CMD [ "python", "server.py" ]

README.md

@@ -0,0 +1,42 @@
+# Gist-it Reborn
+
+Embed any code from GitHub in your website just like a gist.
+
+Based on this original [Repo](https://github.com/robertkrimen/gist-it), but quickly and dirtily rewritten in Python 3 using [Pygments](https://pygments.org/).
+
+# Usage
+
+Add the following snippet to your html or markdown to have the code be placed at that position.
+
+```html
+
+<script src="https://example.com/https://github.com/qvalentin/gist-it-reborn/blob/main/server.py"></script>
+
+```
+
+### Config
+
+#### style
+
+With the style query parameter you can select a highlighting style. A preview of possible values can be found [here](https://help.farbox.com/pygments.html).
+
+Just append the query parameter `style` to the url.
+
+```html
+https://example.com/https://github.com/qvalentin/gist-it-reborn/blob/main/server.py?style=monokai
+
+```
+
+#### Selecting lines
+
+You can choose to only show certain lines of the code. The parameter `slice` can be given in the format `from:to`.
+
+```html
+https://example.com/https://github.com/qvalentin/gist-it-reborn/blob/main/server.py?slice=5:20
+
+```
+
+
+
+
+

server.py

@@ -19,9 +19,9 @@ from pygments.lexers import guess_lexer_for_filename
 
 def render_gist_js(code, path):
     template = Template("""script = document.querySelector('script[src$="{{ path }}"]')
-    script.insertAdjacentHTML( 'afterend','{{ code|tojson }}' );""")
+    script.insertAdjacentHTML( 'afterend',{{ code|tojson }} );""")
 
-    return template.render(code=code,path=path)
+    return template.render(code=str(code), path=path)
 
 
 class HTTPRequestHandler(BaseHTTPRequestHandler):
@@ -79,7 +79,7 @@ def main():
     args = parser.parse_args()
 
     server = HTTPServer(("localhost", 4876), HTTPRequestHandler)
-    print('HTTP Server Running...........')
+    print('HTTP Server Running on localhost:4876')
     server.serve_forever()
 
 

src/requirements.txt

@@ -0,0 +1,3 @@
+requests~=2.26.0
+Jinja2~=3.0.1
+Pygments~=2.10.0

src/server.py

@@ -0,0 +1,87 @@
+#!/usr/bin/env python
+
+"""A meaningful docstring
+
+
+"""
+
+import argparse
+import re
+from http.server import HTTPServer, BaseHTTPRequestHandler
+from urllib.parse import urlparse, parse_qs
+
+import requests
+from jinja2 import Template
+from pygments import highlight
+from pygments.formatters.html import HtmlFormatter
+from pygments.lexers import guess_lexer_for_filename
+
+
+def render_gist_js(code, path):
+    template = Template("""script = document.querySelector('script[src$="{{ path }}"]')
+    script.insertAdjacentHTML( 'afterend','{{ code|tojson }}' );""")
+
+    return template.render(code=code, path=path)
+
+
+class HTTPRequestHandler(BaseHTTPRequestHandler):
+
+    def do_GET(self):
+        if self.path == "/":
+            self.send_response(200, "running")
+        elif re.search("https://github.com/.*/.*", self.path):
+            github_raw_url = self.path[1:].replace("https://github.com/", "https://raw.githubusercontent.com/").replace("/blob/", "/")
+
+            response = requests.get(url=github_raw_url)
+            code = response.content.decode('UTF-8')
+
+            parsed_url = urlparse(self.path)
+            params = parse_qs(parsed_url.query)
+
+            style = "default"
+            if 'style' in params:
+                style = params['style'][0]
+
+            if 'slice' in params:
+                slice_value = params['slice'][0].split(":")
+                from_ = int(slice_value[0])
+                to_ = int(slice_value[1])
+                lines = str(code).splitlines()
+                selected_lines = lines[from_:to_]
+
+                code = "\n".join(selected_lines)
+
+            filename = parsed_url.path.split('/')[-1:][0]
+            lexer = guess_lexer_for_filename(filename, response.content)
+
+            formatter = HtmlFormatter(linenos=False, cssclass="gist-it-highlight", style=style)
+
+            highlighted_code = highlight(code, lexer, formatter)
+            css = formatter.get_style_defs('.gist-it-highlight')
+
+            result = highlighted_code + f"<style> {css}</style>"
+
+            js_rendered = render_gist_js(result, self.path)
+
+            self.send_response(200)
+            self.send_header('Content-Type', 'text/html')
+            self.end_headers()
+            self.wfile.write(js_rendered.encode('utf8'))
+
+        else:
+            self.send_response(404)
+
+        self.end_headers()
+
+
+def main():
+    parser = argparse.ArgumentParser(description='HTTP Server')
+    args = parser.parse_args()
+
+    server = HTTPServer(("localhost", 4876), HTTPRequestHandler)
+    print('HTTP Server Running...........')
+    server.serve_forever()
+
+
+if __name__ == '__main__':
+    main()