import sys
import socket
import ssl
from PySide2 import QtCore, QtWidgets
def htmlescape(text):
return text.replace('<', '<').replace('>', '>')
def gem2html(gem):
html = []
state = 'text'
blanklines = 0
for line in gem.split('\n'):
if line.startswith('```'):
if state == 'pre':
newstate = 'text'
blanklines = 0
else:
newstate = 'pre'
elif state == 'pre':
newstate = 'pre'
elif line.startswith('=>'):
newstate = 'links'
elif line.startswith('* '):
newstate = 'list'
else:
newstate = 'text'
if state != 'pre':
if len(line.strip()) == 0:
blanklines += 1
if blanklines > 1:
html.append('
')
continue
blanklines = 0
if state != newstate:
if state in ('links', 'list'):
html.append('')
elif state == 'pre':
html.append('')
if newstate in ('links', 'list'):
html.append('
') state = newstate if line.startswith('```'): pass elif state == 'links': tokens = line.split(None, 2) if len(tokens) == 3: _, url, text = tokens html.append('
{}
'.format(htmlescape(line))) return '\n'.join(html) def absolute_url(base, url): """ modifies `url` in place """ if not url.scheme(): url.setScheme(base.scheme()) if not url.host(): url.setHost(base.host()) if not url.path().startswith('/'): url.setPath(base.path().rsplit('/', 1)[0] + '/' + url.path()) if url.port() == -1: url.setPort(1965) return url def gem_get(url): if len(url.path()) == 0: url.setPath('/') return { 'status': '32', 'meta': url.toDisplayString(), } context = ssl.create_default_context() context.check_hostname = False context.verify_mode = ssl.CERT_NONE with socket.create_connection((url.host(), url.port())) as sock: with context.wrap_socket(sock, server_hostname=url.host()) as ssock: ssock.sendall('gemini://{}{}\r\n'.format(url.host(), url.path()).encode('utf8')) fp = ssock.makefile(mode='rb') header = fp.readline(1027) status, meta = header.decode('utf8').split(None, 1) if status[0] != '2': return { 'status': status, 'meta': meta.strip(), } body = fp.read() return { 'status': status, 'meta': meta.strip(), 'body': body.decode('utf8'), } class GViewport(QtWidgets.QTextBrowser): hoverUrlChanged = QtCore.Signal(str) def __init__(self, address_bar): self._current_url = None self._last_redirect = (QtCore.QUrl(), {}) self.address_bar = address_bar self._hover_url = None QtWidgets.QTextBrowser.__init__(self) def mouseMoveEvent(self, event): cur = self.cursorForPosition(event.localPos().toPoint()) hover_url = cur.charFormat().anchorHref() hover_url = absolute_url(self._current_url, QtCore.QUrl(hover_url)) if hover_url != self._hover_url: print(hover_url) self._hover_url = hover_url self.hoverUrlChanged.emit(self._hover_url.toString()) return super().mouseMoveEvent(event) def loadResource(self, type_, url): if self._last_redirect[0].toString() == url.toString(): gem = self._last_redirect[1] else: if not url.scheme(): url.setScheme(self._current_url.scheme()) if not url.host(): url.setHost(self._current_url.host()) if url.port() == -1: url.setPort(1965) if not url.path().startswith('/'): url.setPath(self._current_url.path().rsplit('/', 1)[0] + '/' + url.path()) gem = gem_get(absolute_url(self._current_url, url)) if 'body' in gem: html = gem2html(gem['body']) else: html = '