mirror of https://gitlab.com/bashrc2/epicyon
749 lines
26 KiB
Python
749 lines
26 KiB
Python
__filename__ = "theme.py"
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__author__ = "Bob Mottram"
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__license__ = "AGPL3+"
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__version__ = "1.2.0"
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__maintainer__ = "Bob Mottram"
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__email__ = "bob@freedombone.net"
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__status__ = "Production"
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import os
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from utils import loadJson
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from utils import saveJson
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from utils import getImageExtensions
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from shutil import copyfile
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from shutil import make_archive
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from content import dangerousCSS
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def exportTheme(baseDir: str, theme: str) -> bool:
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"""Exports a theme as a zip file
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"""
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themeDir = baseDir + '/theme/' + theme
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if not os.path.isdir(themeDir):
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return False
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if not os.path.isdir(baseDir + '/exports'):
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os.mkdir(baseDir + '/exports')
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exportFilename = baseDir + '/exports/' + theme + '.zip'
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if os.path.isfile(exportFilename):
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os.remove(exportFilename)
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try:
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make_archive(exportFilename, 'zip', themeDir)
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except BaseException:
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pass
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return os.path.isfile(exportFilename)
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def _getThemeFiles() -> []:
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"""Gets the list of theme style sheets
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"""
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return ('epicyon.css', 'login.css', 'follow.css',
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'suspended.css', 'calendar.css', 'blog.css',
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'options.css', 'search.css', 'links.css',
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'welcome.css')
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def isNewsThemeName(baseDir: str, themeName: str) -> bool:
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"""Returns true if the given theme is a news instance
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"""
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themeDir = baseDir + '/theme/' + themeName
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if os.path.isfile(themeDir + '/is_news_instance'):
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return True
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return False
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def getThemesList(baseDir: str) -> []:
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"""Returns the list of available themes
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Note that these should be capitalized, since they're
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also used to create the web interface dropdown list
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and to lookup function names
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"""
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themes = []
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for subdir, dirs, files in os.walk(baseDir + '/theme'):
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for themeName in dirs:
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if '~' not in themeName and \
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themeName != 'icons' and themeName != 'fonts':
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themes.append(themeName.title())
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break
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themes.sort()
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print('Themes available: ' + str(themes))
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return themes
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def _copyThemeHelpFiles(baseDir: str, themeName: str,
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systemLanguage: str) -> None:
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"""Copies any theme specific help files from the welcome subdirectory
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"""
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if not systemLanguage:
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systemLanguage = 'en'
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themeDir = baseDir + '/theme/' + themeName + '/welcome'
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if not os.path.isdir(themeDir):
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themeDir = baseDir + '/defaultwelcome'
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for subdir, dirs, files in os.walk(themeDir):
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for helpMarkdownFile in files:
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if not helpMarkdownFile.endswith('_' + systemLanguage + '.md'):
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continue
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destHelpMarkdownFile = \
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helpMarkdownFile.replace('_' + systemLanguage + '.md', '.md')
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if destHelpMarkdownFile == 'profile.md' or \
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destHelpMarkdownFile == 'final.md':
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destHelpMarkdownFile = 'welcome_' + destHelpMarkdownFile
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if os.path.isdir(baseDir + '/accounts'):
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copyfile(themeDir + '/' + helpMarkdownFile,
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baseDir + '/accounts/' + destHelpMarkdownFile)
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break
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def _setThemeInConfig(baseDir: str, name: str) -> bool:
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"""Sets the theme with the given name within config.json
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"""
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configFilename = baseDir + '/config.json'
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if not os.path.isfile(configFilename):
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return False
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configJson = loadJson(configFilename, 0)
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if not configJson:
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return False
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configJson['theme'] = name
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return saveJson(configJson, configFilename)
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def _setNewswirePublishAsIcon(baseDir: str, useIcon: bool) -> bool:
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"""Shows the newswire publish action as an icon or a button
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"""
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configFilename = baseDir + '/config.json'
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if not os.path.isfile(configFilename):
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return False
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configJson = loadJson(configFilename, 0)
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if not configJson:
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return False
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configJson['showPublishAsIcon'] = useIcon
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return saveJson(configJson, configFilename)
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def _setIconsAsButtons(baseDir: str, useButtons: bool) -> bool:
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"""Whether to show icons in the header (inbox, outbox, etc)
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as buttons
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"""
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configFilename = baseDir + '/config.json'
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if not os.path.isfile(configFilename):
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return False
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configJson = loadJson(configFilename, 0)
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if not configJson:
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return False
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configJson['iconsAsButtons'] = useButtons
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return saveJson(configJson, configFilename)
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def _setRssIconAtTop(baseDir: str, atTop: bool) -> bool:
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"""Whether to show RSS icon at the top of the timeline
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"""
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configFilename = baseDir + '/config.json'
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if not os.path.isfile(configFilename):
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return False
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configJson = loadJson(configFilename, 0)
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if not configJson:
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return False
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configJson['rssIconAtTop'] = atTop
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return saveJson(configJson, configFilename)
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def _setPublishButtonAtTop(baseDir: str, atTop: bool) -> bool:
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"""Whether to show the publish button above the title image
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in the newswire column
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"""
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configFilename = baseDir + '/config.json'
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if not os.path.isfile(configFilename):
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return False
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configJson = loadJson(configFilename, 0)
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if not configJson:
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return False
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configJson['publishButtonAtTop'] = atTop
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return saveJson(configJson, configFilename)
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def _setFullWidthTimelineButtonHeader(baseDir: str, fullWidth: bool) -> bool:
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"""Shows the timeline button header containing inbox, outbox,
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calendar, etc as full width
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"""
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configFilename = baseDir + '/config.json'
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if not os.path.isfile(configFilename):
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return False
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configJson = loadJson(configFilename, 0)
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if not configJson:
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return False
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configJson['fullWidthTimelineButtonHeader'] = fullWidth
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return saveJson(configJson, configFilename)
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def getTheme(baseDir: str) -> str:
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"""Gets the current theme name from config.json
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"""
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configFilename = baseDir + '/config.json'
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if os.path.isfile(configFilename):
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configJson = loadJson(configFilename, 0)
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if configJson:
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if configJson.get('theme'):
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return configJson['theme']
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return 'default'
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def _removeTheme(baseDir: str):
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"""Removes the current theme style sheets
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"""
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themeFiles = _getThemeFiles()
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for filename in themeFiles:
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if os.path.isfile(baseDir + '/' + filename):
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os.remove(baseDir + '/' + filename)
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def setCSSparam(css: str, param: str, value: str) -> str:
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"""Sets a CSS parameter to a given value
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"""
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# is this just a simple string replacement?
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if ';' in param:
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return css.replace(param, value)
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# color replacement
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if param.startswith('rgba('):
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return css.replace(param, value)
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# if the parameter begins with * then don't prepend --
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onceOnly = False
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if param.startswith('*'):
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if param.startswith('**'):
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onceOnly = True
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searchStr = param.replace('**', '') + ':'
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else:
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searchStr = param.replace('*', '') + ':'
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else:
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searchStr = '--' + param + ':'
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if searchStr not in css:
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return css
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if onceOnly:
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s = css.split(searchStr, 1)
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else:
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s = css.split(searchStr)
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newcss = ''
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for sectionStr in s:
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# handle font-family which is a variable
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nextSection = sectionStr
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if ';' in nextSection:
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nextSection = nextSection.split(';')[0] + ';'
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if searchStr == 'font-family:' and "var(--" in nextSection:
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newcss += searchStr + ' ' + sectionStr
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continue
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if not newcss:
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if sectionStr:
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newcss = sectionStr
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else:
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newcss = ' '
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else:
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if ';' in sectionStr:
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newcss += \
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searchStr + ' ' + value + ';' + sectionStr.split(';', 1)[1]
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else:
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newcss += searchStr + ' ' + sectionStr
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return newcss.strip()
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def _setThemeFromDict(baseDir: str, name: str,
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themeParams: {}, bgParams: {},
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allowLocalNetworkAccess: bool) -> None:
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"""Uses a dictionary to set a theme
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"""
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if name:
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_setThemeInConfig(baseDir, name)
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themeFiles = _getThemeFiles()
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for filename in themeFiles:
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# check for custom css within the theme directory
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templateFilename = baseDir + '/theme/' + name + '/epicyon-' + filename
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if filename == 'epicyon.css':
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templateFilename = \
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baseDir + '/theme/' + name + '/epicyon-profile.css'
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# Ensure that any custom CSS is mostly harmless.
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# If not then just use the defaults
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if dangerousCSS(templateFilename, allowLocalNetworkAccess) or \
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not os.path.isfile(templateFilename):
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# use default css
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templateFilename = baseDir + '/epicyon-' + filename
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if filename == 'epicyon.css':
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templateFilename = baseDir + '/epicyon-profile.css'
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if not os.path.isfile(templateFilename):
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continue
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with open(templateFilename, 'r') as cssfile:
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css = cssfile.read()
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for paramName, paramValue in themeParams.items():
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if paramName == 'newswire-publish-icon':
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if paramValue.lower() == 'true':
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_setNewswirePublishAsIcon(baseDir, True)
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else:
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_setNewswirePublishAsIcon(baseDir, False)
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continue
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elif paramName == 'full-width-timeline-buttons':
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if paramValue.lower() == 'true':
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_setFullWidthTimelineButtonHeader(baseDir, True)
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else:
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_setFullWidthTimelineButtonHeader(baseDir, False)
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continue
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elif paramName == 'icons-as-buttons':
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if paramValue.lower() == 'true':
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_setIconsAsButtons(baseDir, True)
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else:
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_setIconsAsButtons(baseDir, False)
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continue
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elif paramName == 'rss-icon-at-top':
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if paramValue.lower() == 'true':
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_setRssIconAtTop(baseDir, True)
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else:
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_setRssIconAtTop(baseDir, False)
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continue
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elif paramName == 'publish-button-at-top':
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if paramValue.lower() == 'true':
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_setPublishButtonAtTop(baseDir, True)
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else:
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_setPublishButtonAtTop(baseDir, False)
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continue
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css = setCSSparam(css, paramName, paramValue)
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filename = baseDir + '/' + filename
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with open(filename, 'w+') as cssfile:
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cssfile.write(css)
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if bgParams.get('login'):
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_setBackgroundFormat(baseDir, name, 'login', bgParams['login'])
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if bgParams.get('follow'):
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_setBackgroundFormat(baseDir, name, 'follow', bgParams['follow'])
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if bgParams.get('options'):
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_setBackgroundFormat(baseDir, name, 'options', bgParams['options'])
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if bgParams.get('search'):
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_setBackgroundFormat(baseDir, name, 'search', bgParams['search'])
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if bgParams.get('welcome'):
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_setBackgroundFormat(baseDir, name, 'welcome', bgParams['welcome'])
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def _setBackgroundFormat(baseDir: str, name: str,
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backgroundType: str, extension: str) -> None:
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"""Sets the background file extension
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"""
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if extension == 'jpg':
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return
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cssFilename = baseDir + '/' + backgroundType + '.css'
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if not os.path.isfile(cssFilename):
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return
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with open(cssFilename, 'r') as cssfile:
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css = cssfile.read()
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css = css.replace('background.jpg', 'background.' + extension)
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with open(cssFilename, 'w+') as cssfile2:
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cssfile2.write(css)
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def enableGrayscale(baseDir: str) -> None:
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"""Enables grayscale for the current theme
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"""
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themeFiles = _getThemeFiles()
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for filename in themeFiles:
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templateFilename = baseDir + '/' + filename
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if not os.path.isfile(templateFilename):
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continue
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with open(templateFilename, 'r') as cssfile:
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css = cssfile.read()
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if 'grayscale' not in css:
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css = \
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css.replace('body, html {',
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'body, html {\n filter: grayscale(100%);')
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filename = baseDir + '/' + filename
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with open(filename, 'w+') as cssfile:
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cssfile.write(css)
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grayscaleFilename = baseDir + '/accounts/.grayscale'
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if not os.path.isfile(grayscaleFilename):
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with open(grayscaleFilename, 'w+') as grayfile:
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grayfile.write(' ')
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def disableGrayscale(baseDir: str) -> None:
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"""Disables grayscale for the current theme
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"""
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themeFiles = _getThemeFiles()
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for filename in themeFiles:
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templateFilename = baseDir + '/' + filename
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if not os.path.isfile(templateFilename):
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continue
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with open(templateFilename, 'r') as cssfile:
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css = cssfile.read()
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if 'grayscale' in css:
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css = \
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css.replace('\n filter: grayscale(100%);', '')
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filename = baseDir + '/' + filename
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with open(filename, 'w+') as cssfile:
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cssfile.write(css)
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grayscaleFilename = baseDir + '/accounts/.grayscale'
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if os.path.isfile(grayscaleFilename):
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os.remove(grayscaleFilename)
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def _setCustomFont(baseDir: str):
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"""Uses a dictionary to set a theme
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"""
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customFontExt = None
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customFontType = None
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fontExtension = {
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'woff': 'woff',
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'woff2': 'woff2',
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'otf': 'opentype',
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'ttf': 'truetype'
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}
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for ext, extType in fontExtension.items():
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filename = baseDir + '/fonts/custom.' + ext
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if os.path.isfile(filename):
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customFontExt = ext
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customFontType = extType
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if not customFontExt:
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return
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themeFiles = _getThemeFiles()
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for filename in themeFiles:
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templateFilename = baseDir + '/' + filename
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if not os.path.isfile(templateFilename):
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continue
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with open(templateFilename, 'r') as cssfile:
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css = cssfile.read()
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css = \
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setCSSparam(css, "*src",
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"url('./fonts/custom." +
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customFontExt +
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"') format('" +
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customFontType + "')")
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css = setCSSparam(css, "*font-family", "'CustomFont'")
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filename = baseDir + '/' + filename
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with open(filename, 'w+') as cssfile:
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cssfile.write(css)
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def _readVariablesFile(baseDir: str, themeName: str,
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variablesFile: str,
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allowLocalNetworkAccess: bool) -> None:
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"""Reads variables from a file in the theme directory
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"""
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themeParams = loadJson(variablesFile, 0)
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if not themeParams:
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return
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bgParams = {
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"login": "jpg",
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"follow": "jpg",
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"options": "jpg",
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"search": "jpg"
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}
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_setThemeFromDict(baseDir, themeName, themeParams, bgParams,
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allowLocalNetworkAccess)
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def _setThemeDefault(baseDir: str, allowLocalNetworkAccess: bool):
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name = 'default'
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_removeTheme(baseDir)
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_setThemeInConfig(baseDir, name)
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bgParams = {
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"login": "jpg",
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"follow": "jpg",
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"options": "jpg",
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"search": "jpg"
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}
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themeParams = {
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"newswire-publish-icon": True,
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"full-width-timeline-buttons": False,
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"icons-as-buttons": False,
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"rss-icon-at-top": True,
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"publish-button-at-top": False,
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"banner-height": "20vh",
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"banner-height-mobile": "10vh",
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"search-banner-height-mobile": "15vh"
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}
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_setThemeFromDict(baseDir, name, themeParams, bgParams,
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allowLocalNetworkAccess)
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def _setThemeFonts(baseDir: str, themeName: str) -> None:
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"""Adds custom theme fonts
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"""
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themeNameLower = themeName.lower()
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fontsDir = baseDir + '/fonts'
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themeFontsDir = \
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baseDir + '/theme/' + themeNameLower + '/fonts'
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if not os.path.isdir(themeFontsDir):
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return
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for subdir, dirs, files in os.walk(themeFontsDir):
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for filename in files:
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if filename.endswith('.woff2') or \
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filename.endswith('.woff') or \
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filename.endswith('.ttf') or \
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filename.endswith('.otf'):
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destFilename = fontsDir + '/' + filename
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if os.path.isfile(destFilename):
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# font already exists in the destination location
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continue
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copyfile(themeFontsDir + '/' + filename,
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destFilename)
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break
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def getTextModeBanner(baseDir: str) -> str:
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|
"""Returns the banner used for shell browsers, like Lynx
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"""
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textModeBannerFilename = baseDir + '/accounts/banner.txt'
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if os.path.isfile(textModeBannerFilename):
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with open(textModeBannerFilename, 'r') as fp:
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bannerStr = fp.read()
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if bannerStr:
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return bannerStr.replace('\n', '<br>')
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return None
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def getTextModeLogo(baseDir: str) -> str:
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"""Returns the login screen logo used for shell browsers, like Lynx
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"""
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textModeLogoFilename = baseDir + '/accounts/logo.txt'
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if not os.path.isfile(textModeLogoFilename):
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textModeLogoFilename = baseDir + '/img/logo.txt'
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with open(textModeLogoFilename, 'r') as fp:
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logoStr = fp.read()
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if logoStr:
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return logoStr.replace('\n', '<br>')
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return None
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def _setTextModeTheme(baseDir: str, name: str) -> None:
|
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# set the text mode logo which appears on the login screen
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# in browsers such as Lynx
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textModeLogoFilename = \
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baseDir + '/theme/' + name + '/logo.txt'
|
|
if os.path.isfile(textModeLogoFilename):
|
|
try:
|
|
copyfile(textModeLogoFilename,
|
|
baseDir + '/accounts/logo.txt')
|
|
except BaseException:
|
|
pass
|
|
else:
|
|
try:
|
|
copyfile(baseDir + '/img/logo.txt',
|
|
baseDir + '/accounts/logo.txt')
|
|
except BaseException:
|
|
pass
|
|
|
|
# set the text mode banner which appears in browsers such as Lynx
|
|
textModeBannerFilename = \
|
|
baseDir + '/theme/' + name + '/banner.txt'
|
|
if os.path.isfile(baseDir + '/accounts/banner.txt'):
|
|
os.remove(baseDir + '/accounts/banner.txt')
|
|
if os.path.isfile(textModeBannerFilename):
|
|
try:
|
|
copyfile(textModeBannerFilename,
|
|
baseDir + '/accounts/banner.txt')
|
|
except BaseException:
|
|
pass
|
|
|
|
|
|
def _setThemeImages(baseDir: str, name: str) -> None:
|
|
"""Changes the profile background image
|
|
and banner to the defaults
|
|
"""
|
|
themeNameLower = name.lower()
|
|
|
|
profileImageFilename = \
|
|
baseDir + '/theme/' + themeNameLower + '/image.png'
|
|
bannerFilename = \
|
|
baseDir + '/theme/' + themeNameLower + '/banner.png'
|
|
searchBannerFilename = \
|
|
baseDir + '/theme/' + themeNameLower + '/search_banner.png'
|
|
leftColImageFilename = \
|
|
baseDir + '/theme/' + themeNameLower + '/left_col_image.png'
|
|
rightColImageFilename = \
|
|
baseDir + '/theme/' + themeNameLower + '/right_col_image.png'
|
|
|
|
_setTextModeTheme(baseDir, themeNameLower)
|
|
|
|
backgroundNames = ('login', 'shares', 'delete', 'follow',
|
|
'options', 'block', 'search', 'calendar',
|
|
'welcome')
|
|
extensions = getImageExtensions()
|
|
|
|
for subdir, dirs, files in os.walk(baseDir + '/accounts'):
|
|
for acct in dirs:
|
|
if '@' not in acct:
|
|
continue
|
|
if acct.startswith('inbox@'):
|
|
continue
|
|
elif acct.startswith('news@'):
|
|
continue
|
|
accountDir = \
|
|
os.path.join(baseDir + '/accounts', acct)
|
|
|
|
for backgroundType in backgroundNames:
|
|
for ext in extensions:
|
|
if themeNameLower == 'default':
|
|
backgroundImageFilename = \
|
|
baseDir + '/theme/default/' + \
|
|
backgroundType + '_background.' + ext
|
|
else:
|
|
backgroundImageFilename = \
|
|
baseDir + '/theme/' + themeNameLower + '/' + \
|
|
backgroundType + '_background' + '.' + ext
|
|
|
|
if os.path.isfile(backgroundImageFilename):
|
|
try:
|
|
copyfile(backgroundImageFilename,
|
|
baseDir + '/accounts/' +
|
|
backgroundType + '-background.' + ext)
|
|
continue
|
|
except BaseException:
|
|
pass
|
|
# background image was not found
|
|
# so remove any existing file
|
|
if os.path.isfile(baseDir + '/accounts/' +
|
|
backgroundType + '-background.' + ext):
|
|
try:
|
|
os.remove(baseDir + '/accounts/' +
|
|
backgroundType + '-background.' + ext)
|
|
except BaseException:
|
|
pass
|
|
|
|
if os.path.isfile(profileImageFilename) and \
|
|
os.path.isfile(bannerFilename):
|
|
try:
|
|
copyfile(profileImageFilename,
|
|
accountDir + '/image.png')
|
|
except BaseException:
|
|
pass
|
|
|
|
try:
|
|
copyfile(bannerFilename,
|
|
accountDir + '/banner.png')
|
|
except BaseException:
|
|
pass
|
|
|
|
try:
|
|
if os.path.isfile(searchBannerFilename):
|
|
copyfile(searchBannerFilename,
|
|
accountDir + '/search_banner.png')
|
|
except BaseException:
|
|
pass
|
|
|
|
try:
|
|
if os.path.isfile(leftColImageFilename):
|
|
copyfile(leftColImageFilename,
|
|
accountDir + '/left_col_image.png')
|
|
else:
|
|
if os.path.isfile(accountDir +
|
|
'/left_col_image.png'):
|
|
os.remove(accountDir + '/left_col_image.png')
|
|
|
|
except BaseException:
|
|
pass
|
|
|
|
try:
|
|
if os.path.isfile(rightColImageFilename):
|
|
copyfile(rightColImageFilename,
|
|
accountDir + '/right_col_image.png')
|
|
else:
|
|
if os.path.isfile(accountDir +
|
|
'/right_col_image.png'):
|
|
os.remove(accountDir + '/right_col_image.png')
|
|
except BaseException:
|
|
pass
|
|
break
|
|
|
|
|
|
def setNewsAvatar(baseDir: str, name: str,
|
|
httpPrefix: str,
|
|
domain: str, domainFull: str) -> None:
|
|
"""Sets the avatar for the news account
|
|
"""
|
|
nickname = 'news'
|
|
newFilename = baseDir + '/theme/' + name + '/icons/avatar_news.png'
|
|
if not os.path.isfile(newFilename):
|
|
newFilename = baseDir + '/theme/default/icons/avatar_news.png'
|
|
if not os.path.isfile(newFilename):
|
|
return
|
|
avatarFilename = \
|
|
httpPrefix + '://' + domainFull + '/users/' + nickname + '.png'
|
|
avatarFilename = avatarFilename.replace('/', '-')
|
|
filename = baseDir + '/cache/avatars/' + avatarFilename
|
|
|
|
if os.path.isfile(filename):
|
|
os.remove(filename)
|
|
if os.path.isdir(baseDir + '/cache/avatars'):
|
|
copyfile(newFilename, filename)
|
|
copyfile(newFilename,
|
|
baseDir + '/accounts/' +
|
|
nickname + '@' + domain + '/avatar.png')
|
|
|
|
|
|
def _setClearCacheFlag(baseDir: str) -> None:
|
|
"""Sets a flag which can be used by an external system
|
|
(eg. a script in a cron job) to clear the browser cache
|
|
"""
|
|
if not os.path.isdir(baseDir + '/accounts'):
|
|
return
|
|
flagFilename = baseDir + '/accounts/.clear_cache'
|
|
with open(flagFilename, 'w+') as flagFile:
|
|
flagFile.write('\n')
|
|
|
|
|
|
def setTheme(baseDir: str, name: str, domain: str,
|
|
allowLocalNetworkAccess: bool, systemLanguage: str) -> bool:
|
|
"""Sets the theme with the given name as the current theme
|
|
"""
|
|
result = False
|
|
|
|
prevThemeName = getTheme(baseDir)
|
|
_removeTheme(baseDir)
|
|
|
|
themes = getThemesList(baseDir)
|
|
for themeName in themes:
|
|
themeNameLower = themeName.lower()
|
|
if name == themeNameLower:
|
|
try:
|
|
globals()['setTheme' + themeName](baseDir,
|
|
allowLocalNetworkAccess)
|
|
except BaseException:
|
|
pass
|
|
|
|
if prevThemeName:
|
|
if prevThemeName.lower() != themeNameLower:
|
|
# change the banner and profile image
|
|
# to the default for the theme
|
|
_setThemeImages(baseDir, name)
|
|
_setThemeFonts(baseDir, name)
|
|
result = True
|
|
|
|
if not result:
|
|
# default
|
|
_setThemeDefault(baseDir, allowLocalNetworkAccess)
|
|
result = True
|
|
|
|
variablesFile = baseDir + '/theme/' + name + '/theme.json'
|
|
if os.path.isfile(variablesFile):
|
|
_readVariablesFile(baseDir, name, variablesFile,
|
|
allowLocalNetworkAccess)
|
|
|
|
_setCustomFont(baseDir)
|
|
|
|
# set the news avatar
|
|
newsAvatarThemeFilename = \
|
|
baseDir + '/theme/' + name + '/icons/avatar_news.png'
|
|
if os.path.isdir(baseDir + '/accounts/news@' + domain):
|
|
if os.path.isfile(newsAvatarThemeFilename):
|
|
newsAvatarFilename = \
|
|
baseDir + '/accounts/news@' + domain + '/avatar.png'
|
|
copyfile(newsAvatarThemeFilename, newsAvatarFilename)
|
|
|
|
grayscaleFilename = baseDir + '/accounts/.grayscale'
|
|
if os.path.isfile(grayscaleFilename):
|
|
enableGrayscale(baseDir)
|
|
else:
|
|
disableGrayscale(baseDir)
|
|
|
|
_copyThemeHelpFiles(baseDir, name, systemLanguage)
|
|
_setThemeInConfig(baseDir, name)
|
|
_setClearCacheFlag(baseDir)
|
|
return result
|