Mercurial > libervia-backend
view frontends/src/jp/cmd_blog.py @ 2271:2fae89f30b8d
jp (blog): minor typo fix
author | Goffi <goffi@goffi.org> |
---|---|
date | Tue, 27 Jun 2017 17:02:10 +0200 |
parents | 07caa12be945 |
children | 5f0dbf42aa9c |
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#!/usr/bin/env python2 # -*- coding: utf-8 -*- # jp: a SàT command line tool # Copyright (C) 2009-2016 Jérôme Poisson (goffi@goffi.org) # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. import base from sat.core.i18n import _ from sat_frontends.jp.constants import Const as C from sat_frontends.jp import common from sat.tools.common.ansi import ANSI as A from sat.tools.common import data_objects from sat.tools import config from ConfigParser import NoSectionError, NoOptionError import json import sys import os.path import os import time import tempfile import subprocess import shlex from sat.tools.common import data_format __commands__ = ["Blog"] # extensions to use with known syntaxes SYNTAX_EXT = { '': 'txt', # used when the syntax is not found "XHTML": "xhtml", "markdown": "md" } CONF_SYNTAX_EXT = 'syntax_ext_dict' BLOG_TMP_DIR=u"blog" # key to remove from metadata tmp file if they exist KEY_TO_REMOVE_METADATA = ('id','content', 'content_xhtml', 'comments_node', 'comments_service', 'updated') URL_REDIRECT_PREFIX = 'url_redirect_' INOTIFY_INSTALL = '"pip install inotify"' MB_KEYS = (u"id", u"atom_id", u"updated", u"published", u"language", u"comments", # this key is used for all comments* keys u"tags", # this key is used for all tag* keys u"author", u"author_jid", u"author_email", u"author_jid_verified", u"content", u"content_xhtml", u"title", u"title_xhtml") OUTPUT_OPT_NO_HEADER = u'no-header' class BlogCommon(object): def __init__(self, host): self.host = host def addServiceNodeArgs(self): self.parser.add_argument("-n", "--node", type=base.unicode_decoder, default=u'', help=_(u"PubSub node to request (default: microblog namespace)")) self.parser.add_argument("-s", "--service", type=base.unicode_decoder, default=u'', help=_(u"JID of the PubSub service (default: request profile own blog)")) def guessSyntaxFromPath(self, sat_conf, path): """Return syntax guessed according to filename extension @param sat_conf(ConfigParser.ConfigParser): instance opened on sat configuration @param path(str): path to the content file @return(unicode): syntax to use """ # we first try to guess syntax with extension ext = os.path.splitext(path)[1][1:] # we get extension without the '.' if ext: for k,v in SYNTAX_EXT.iteritems(): if k and ext == v: return k # if not found, we use current syntax return self.host.bridge.getParamA("Syntax", "Composition", "value", self.profile) def parse_args(self, cmd_line, **format_kw): """Parse command arguments @param cmd_line(unicode): command line as found in sat.conf @param format_kw: keywords used for formmating @return (list(unicode)): list of arguments to pass to subprocess function """ try: # we split the arguments and add the known fields # we split arguments first to avoid escaping issues in file names return [a.format(**format_kw) for a in shlex.split(cmd_line)] except ValueError as e: self.disp(u"Couldn't parse editor cmd [{cmd}]: {reason}".format(cmd=cmd_line, reason=e)) return [] class Get(base.CommandBase, BlogCommon): TEMPLATE = u"blog/articles.html" def __init__(self, host): extra_outputs = {'default': self.default_output, 'fancy': self.fancy_output} base.CommandBase.__init__(self, host, 'get', use_verbose=True, use_output='complex', extra_outputs=extra_outputs, help=_(u'get blog item(s)')) BlogCommon.__init__(self, self.host) self.need_loop=True def add_parser_options(self): self.addServiceNodeArgs() self.parser.add_argument("-i", "--item", type=base.unicode_decoder, action='append', default=[], dest='items', help=_(u"item(s) id(s) to get (default: request all items)")) self.parser.add_argument("-m", "--max", type=int, default=10, help=_(u"maximum number of items to get ({} to get all items)".format(C.NO_LIMIT))) # TODO: a key(s) argument to select keys to display self.parser.add_argument("-k", "--key", type=base.unicode_decoder, action='append', dest='keys', help=_(u"microblog data key(s) to display (default: depend of verbosity)")) # TODO: add MAM filters def template_data_mapping(self, data): return {u'items': data_objects.BlogItems(data)} def format_comments(self, item, keys): comments_data = data_format.dict2iterdict(u'comments', item, (u'node', u'service'), pop=True) lines = [] for data in comments_data: lines.append(data[u'comments']) for k in (u'node', u'service'): if OUTPUT_OPT_NO_HEADER in self.args.output_opts: header = u'' else: header = C.A_HEADER + k + u': ' + A.RESET lines.append(header + data[k]) return u'\n'.join(lines) def format_tags(self, item, keys): tags = data_format.dict2iter('tag', item, pop=True) return u', '.join(tags) def format_updated(self, item, keys): return self.format_time(item['updated']) def format_published(self, item, keys): return self.format_time(item['published']) def get_keys(self): """return keys to display according to verbosity or explicit key request""" verbosity = self.args.verbose if self.args.keys: if not set(MB_KEYS).issuperset(self.args.keys): self.disp(u"following keys are invalid: {invalid}.\n" u"Valid keys are: {valid}.".format( invalid = u', '.join(set(self.args.keys).difference(MB_KEYS)), valid = u', '.join(sorted(MB_KEYS))), error=True) self.host.quit(C.EXIT_BAD_ARG) return self.args.keys else: if verbosity == 0: return (u'title', u'content') elif verbosity == 1: return (u"title", u"tags", u"author", u"author_jid", u"author_email", u"author_jid_verified", u"published", u"updated", u"content") else: return MB_KEYS def default_output(self, data): """simple key/value output""" items, metadata = data keys = self.get_keys() # k_cb use format_[key] methods for complex formattings k_cb = {} for k in keys: try: callback = getattr(self, "format_" + k) except AttributeError: pass else: k_cb[k] = callback for idx, item in enumerate(items): for k in keys: if k not in item and k not in k_cb: continue if OUTPUT_OPT_NO_HEADER in self.args.output_opts: header = '' else: header = u"{k_fmt}{key}:{k_fmt_e} {sep}".format( k_fmt = C.A_HEADER, key = k, k_fmt_e = A.RESET, sep = u'\n' if 'content' in k else u'') value = k_cb[k](item, keys) if k in k_cb else item[k] self.disp(header + value) # we want a separation line after each item but the last one if idx < len(items)-1: print(u'') def format_time(self, timestamp): """return formatted date for timestamp @param timestamp(str,int,float): unix timestamp @return (unicode): formatted date """ fmt = u"%d/%m/%Y %H:%M:%S" return time.strftime(fmt, time.localtime(float(timestamp))) def fancy_output(self, data): """display blog is a nice to read way this output doesn't use keys filter """ # thanks to http://stackoverflow.com/a/943921 rows, columns = map(int, os.popen('stty size', 'r').read().split()) items, metadata = data verbosity = self.args.verbose sep = A.color(A.FG_BLUE, columns * u'▬') if items: print(u'\n' + sep + '\n') for idx, item in enumerate(items): title = item.get(u'title') if verbosity > 0: author = item[u'author'] published, updated = item[u'published'], item.get('updated') else: author = published = updated = None if verbosity > 1: tags = list(data_format.dict2iter('tag', item, pop=True)) else: tags = None content = item.get(u'content') if title: print(A.color(A.BOLD, A.FG_CYAN, item[u'title'])) meta = [] if author: meta.append(A.color(A.FG_YELLOW, author)) if published: meta.append(A.color(A.FG_YELLOW, u'on ', self.format_time(published))) if updated != published: meta.append(A.color(A.FG_YELLOW, u'(updated on ', self.format_time(updated), u')')) print(u' '.join(meta)) if tags: print(A.color(A.FG_MAGENTA, u', '.join(tags))) if (title or tags) and content: print("") if content: self.disp(content) print(u'\n' + sep + '\n') def mbGetCb(self, mb_result): self.output(mb_result) self.host.quit(C.EXIT_OK) def mbGetEb(self, failure_): self.disp(u"can't get blog items: {reason}".format( reason=failure_), error=True) self.host.quit(C.EXIT_BRIDGE_ERRBACK) def start(self): self.host.bridge.mbGet( self.args.service, self.args.node, self.args.max, self.args.items, {}, self.profile, callback=self.mbGetCb, errback=self.mbGetEb) class Edit(base.CommandBase, BlogCommon, common.BaseEdit): def __init__(self, host): base.CommandBase.__init__(self, host, 'edit', use_verbose=True, help=_(u'edit an existing or new blog post')) BlogCommon.__init__(self, self.host) common.BaseEdit.__init__(self, self.host, BLOG_TMP_DIR, use_metadata=True) def add_parser_options(self): self.addServiceNodeArgs() self.parser.add_argument("item", type=base.unicode_decoder, nargs='?', default=u'new', help=_(u"URL of the item to edit, or keyword")) self.parser.add_argument("-P", "--preview", action="store_true", help=_(u"launch a blog preview in parallel")) self.parser.add_argument("-T", '--title', type=base.unicode_decoder, help=_(u"title of the item")) self.parser.add_argument("-t", '--tag', type=base.unicode_decoder, action='append', help=_(u"tag (category) of your item")) self.parser.add_argument("--no-comment", action='store_true', help=_(u"disable comments")) common.BaseEdit.add_parser_options(self) def buildMetadataFile(self, content_file_path, mb_data=None): """Build a metadata file using json The file is named after content_file_path, with extension replaced by _metadata.json @param content_file_path(str): path to the temporary file which will contain the body @param mb_data(dict, None): microblog metadata (for existing items) @return (tuple[dict, str]): merged metadata put originaly in metadata file and path to temporary metadata file """ # we first construct metadata from edited item ones and CLI argumments # or re-use the existing one if it exists meta_file_path = os.path.splitext(content_file_path)[0] + common.METADATA_SUFF if os.path.exists(meta_file_path): self.disp(u"Metadata file already exists, we re-use it") try: with open(meta_file_path, 'rb') as f: mb_data = json.load(f) except (OSError, IOError, ValueError) as e: self.disp(u"Can't read existing metadata file at {path}, aborting: {reason}".format( path=meta_file_path, reason=e), error=True) self.host.quit(1) else: mb_data = {} if mb_data is None else mb_data.copy() # in all cases, we want to remove unwanted keys for key in KEY_TO_REMOVE_METADATA: try: del mb_data[key] except KeyError: pass # and override metadata with command-line arguments mb_data['allow_comments'] = C.boolConst(not self.args.no_comment) if self.args.tag: data_format.iter2dict('tag', self.args.tag, mb_data, check_conflict=False) if self.args.title is not None: mb_data['title'] = self.args.title # then we create the file and write metadata there, as JSON dict # XXX: if we port jp one day on Windows, O_BINARY may need to be added here with os.fdopen(os.open(meta_file_path, os.O_RDWR | os.O_CREAT | os.O_TRUNC,0o600), 'w+b') as f: # we need to use an intermediate unicode buffer to write to the file unicode without escaping characters unicode_dump = json.dumps(mb_data, ensure_ascii=False, indent=4, separators=(',', ': '), sort_keys=True) f.write(unicode_dump.encode('utf-8')) return mb_data, meta_file_path def edit(self, content_file_path, content_file_obj, mb_data=None): """Edit the file contening the content using editor, and publish it""" if mb_data is not None: self.pubsub_item = mb_data['id'] # we first create metadata file meta_ori, meta_file_path = self.buildMetadataFile(content_file_path, mb_data) # do we need a preview ? if self.args.preview: self.disp(u"Preview requested, launching it", 1) # we redirect outputs to /dev/null to avoid console pollution in editor # if user wants to see messages, (s)he can call "blog preview" directly DEVNULL = open(os.devnull, 'wb') subprocess.Popen([sys.argv[0], "blog", "preview", "--inotify", "true", "-p", self.profile, content_file_path], stdout=DEVNULL, stderr=subprocess.STDOUT) # we launch editor self.runEditor("blog_editor_args", content_file_path, content_file_obj, meta_file_path=meta_file_path, meta_ori=meta_ori) def publish(self, content, mb_data): mb_data['content_rich'] = content if self.pubsub_item is not None: mb_data['id'] = self.pubsub_item self.host.bridge.mbSend(self.pubsub_service, self.pubsub_node, mb_data, self.profile) self.disp(u"Blog item published") def getTmpSuff(self): # we get current syntax to determine file extension self.current_syntax = self.host.bridge.getParamA("Syntax", "Composition", "value", self.profile) return SYNTAX_EXT.get(self.current_syntax, SYNTAX_EXT['']) def getItemData(self, service, node, item): items = [item] if item is not None else [] mb_data = self.host.bridge.mbGet(service, node, 1, items, {}, self.profile)[0][0] try: content = mb_data['content_xhtml'] except KeyError: content = mb_data['content'] if content: content = self.host.bridge.syntaxConvert(content, 'text', 'XHTML', False, self.profile) if content and self.current_syntax != 'XHTML': content = self.host.bridge.syntaxConvert(content, 'XHTML', self.current_syntax, False, self.profile) return content, mb_data def start(self): # if there are user defined extension, we use them SYNTAX_EXT.update(config.getConfig(self.sat_conf, 'jp', CONF_SYNTAX_EXT, {})) self.current_syntax = None self.pubsub_service, self.pubsub_node, self.pubsub_item, content_file_path, content_file_obj, mb_data = self.getItemPath(self.args.item) self.edit(content_file_path, content_file_obj, mb_data=mb_data) class Preview(base.CommandBase, BlogCommon): def __init__(self, host): base.CommandBase.__init__(self, host, 'preview', use_verbose=True, help=_(u'preview a blog content')) BlogCommon.__init__(self, self.host) def add_parser_options(self): self.parser.add_argument("--inotify", type=str, choices=('auto', 'true', 'false'), default=u'auto', help=_(u"use inotify to handle preview")) self.parser.add_argument("file", type=base.unicode_decoder, nargs='?', default=u'current', help=_(u"path to the content file")) def showPreview(self): # we implement showPreview here so we don't have to import webbrowser and urllib # when preview is not used url = 'file:{}'.format(self.urllib.quote(self.preview_file_path)) self.webbrowser.open_new_tab(url) def _launchPreviewExt(self, cmd_line, opt_name): url = 'file:{}'.format(self.urllib.quote(self.preview_file_path)) args = self.parse_args(cmd_line, url=url, preview_file=self.preview_file_path) if not args: self.disp(u"Couln't find command in \"{name}\", abording".format(name=opt_name), error=True) self.host.quit(1) subprocess.Popen(args) def openPreviewExt(self): self._launchPreviewExt(self.open_cb_cmd, "blog_preview_open_cmd") def updatePreviewExt(self): self._launchPreviewExt(self.update_cb_cmd, "blog_preview_update_cmd") def updateContent(self): with open(self.content_file_path, 'rb') as f: content = f.read().decode('utf-8-sig') if content and self.syntax != 'XHTML': # we use safe=True because we want to have a preview as close as possible to what the # people will see content = self.host.bridge.syntaxConvert(content, self.syntax, 'XHTML', True, self.profile) xhtml = (u'<html xmlns="http://www.w3.org/1999/xhtml">' + u'<head><meta http-equiv="Content-Type" content="text/html;charset=utf-8" /></head>'+ '<body>{}</body>' + u'</html>').format(content) with open(self.preview_file_path, 'wb') as f: f.write(xhtml.encode('utf-8')) def start(self): import webbrowser import urllib self.webbrowser, self.urllib = webbrowser, urllib if self.args.inotify != 'false': try: import inotify.adapters import inotify.constants from inotify.calls import InotifyError except ImportError: if self.args.inotify == 'auto': inotify = None self.disp(u'inotify module not found, deactivating feature. You can install it with {install}'.format(install=INOTIFY_INSTALL)) else: self.disp(u"inotify not found, can't activate the feature! Please install it with {install}".format(install=INOTIFY_INSTALL), error=True) self.host.quit(1) else: # we deactivate logging in inotify, which is quite annoying try: inotify.adapters._LOGGER.setLevel(40) except AttributeError: self.disp(u"Logger doesn't exists, inotify may have chanded", error=True) else: inotify=None sat_conf = config.parseMainConf() SYNTAX_EXT.update(config.getConfig(sat_conf, 'jp', CONF_SYNTAX_EXT, {})) try: self.open_cb_cmd = config.getConfig(sat_conf, 'jp', "blog_preview_open_cmd", Exception) except (NoOptionError, NoSectionError): self.open_cb_cmd = None open_cb = self.showPreview else: open_cb = self.openPreviewExt self.update_cb_cmd = config.getConfig(sat_conf, 'jp', "blog_preview_update_cmd", self.open_cb_cmd) if self.update_cb_cmd is None: update_cb = self.showPreview else: update_cb = self.updatePreviewExt # which file do we need to edit? if self.args.file == 'current': self.content_file_path = self.getCurrentFile(sat_conf, self.profile) else: self.content_file_path = os.path.abspath(self.args.file) self.syntax = self.guessSyntaxFromPath(sat_conf, self.content_file_path) # at this point the syntax is converted, we can display the preview preview_file = tempfile.NamedTemporaryFile(suffix='.xhtml', delete=False) self.preview_file_path = preview_file.name preview_file.close() self.updateContent() if inotify is None: # XXX: we don't delete file automatically because browser need it (and webbrowser.open can return before it is read) self.disp(u'temporary file created at {}\nthis file will NOT BE DELETED AUTOMATICALLY, please delete it yourself when you have finished'.format(self.preview_file_path)) open_cb() else: open_cb() i = inotify.adapters.Inotify(block_duration_s=60) # no need for 1 s duraction, inotify drive actions here def add_watch(): i.add_watch(self.content_file_path, mask=inotify.constants.IN_CLOSE_WRITE | inotify.constants.IN_DELETE_SELF | inotify.constants.IN_MOVE_SELF) add_watch() try: for event in i.event_gen(): if event is not None: self.disp(u"Content updated", 1) if {"IN_DELETE_SELF", "IN_MOVE_SELF"}.intersection(event[1]): self.disp(u"{} event catched, changing the watch".format(", ".join(event[1])), 2) try: add_watch() except InotifyError: # if the new file is not here yet we can have an error # as a workaround, we do a little rest time.sleep(1) add_watch() self.updateContent() update_cb() except InotifyError: self.disp(u"Can't catch inotify events, as the file been deleted?", error=True) finally: os.unlink(self.preview_file_path) try: i.remove_watch(self.content_file_path) except InotifyError: pass class Import(base.CommandAnswering): def __init__(self, host): super(Import, self).__init__(host, 'import', use_progress=True, help=_(u'import an external blog')) self.need_loop=True def add_parser_options(self): self.parser.add_argument("importer", type=base.unicode_decoder, nargs='?', help=_(u"importer name, nothing to display importers list")) self.parser.add_argument('--host', type=base.unicode_decoder, help=_(u"original blog host")) self.parser.add_argument('--no-images-upload', action='store_true', help=_(u"do *NOT* upload images (default: do upload images)")) self.parser.add_argument('--upload-ignore-host', help=_(u"do not upload images from this host (default: upload all images)")) self.parser.add_argument("--ignore-tls-errors", action="store_true", help=_("ignore invalide TLS certificate for uploads")) self.parser.add_argument('-o', '--option', action='append', nargs=2, default=[], metavar=(u'NAME', u'VALUE'), help=_(u"importer specific options (see importer description)")) self.parser.add_argument('--service', type=base.unicode_decoder, default=u'', metavar=u'PUBSUB_SERVICE', help=_(u"PubSub service where the items must be uploaded (default: server)")) self.parser.add_argument("location", type=base.unicode_decoder, nargs='?', help=_(u"importer data location (see importer description), nothing to show importer description")) def onProgressStarted(self, metadata): self.disp(_(u'Blog upload started'),2) def onProgressFinished(self, metadata): self.disp(_(u'Blog uploaded successfully'),2) redirections = {k[len(URL_REDIRECT_PREFIX):]:v for k,v in metadata.iteritems() if k.startswith(URL_REDIRECT_PREFIX)} if redirections: conf = u'\n'.join([ u'url_redirections_profile = {}'.format(self.profile), u"url_redirections_dict = {}".format( # we need to add ' ' before each new line and to double each '%' for ConfigParser u'\n '.join(json.dumps(redirections, indent=1, separators=(',',': ')).replace(u'%', u'%%').split(u'\n'))), ]) self.disp(_(u'\nTo redirect old URLs to new ones, put the following lines in your sat.conf file, in [libervia] section:\n\n{conf}'.format(conf=conf))) def onProgressError(self, error_msg): self.disp(_(u'Error while uploading blog: {}').format(error_msg),error=True) def error(self, failure): self.disp(_("Error while trying to upload a blog: {reason}").format(reason=failure), error=True) self.host.quit(1) def start(self): if self.args.location is None: for name in ('option', 'service', 'no_images_upload'): if getattr(self.args, name): self.parser.error(_(u"{name} argument can't be used without location argument").format(name=name)) if self.args.importer is None: self.disp(u'\n'.join([u'{}: {}'.format(name, desc) for name, desc in self.host.bridge.blogImportList()])) else: try: short_desc, long_desc = self.host.bridge.blogImportDesc(self.args.importer) except Exception as e: msg = [l for l in unicode(e).split('\n') if l][-1] # we only keep the last line self.disp(msg) self.host.quit(1) else: self.disp(u"{name}: {short_desc}\n\n{long_desc}".format(name=self.args.importer, short_desc=short_desc, long_desc=long_desc)) self.host.quit() else: # we have a location, an import is requested options = {key: value for key, value in self.args.option} if self.args.host: options['host'] = self.args.host if self.args.ignore_tls_errors: options['ignore_tls_errors'] = C.BOOL_TRUE if self.args.no_images_upload: options['upload_images'] = C.BOOL_FALSE if self.args.upload_ignore_host: self.parser.error(u"upload-ignore-host option can't be used when no-images-upload is set") elif self.args.upload_ignore_host: options['upload_ignore_host'] = self.args.upload_ignore_host def gotId(id_): self.progress_id = id_ self.host.bridge.blogImport(self.args.importer, self.args.location, options, self.args.service, self.profile, callback=gotId, errback=self.error) class Blog(base.CommandBase): subcommands = (Get, Edit, Preview, Import) def __init__(self, host): super(Blog, self).__init__(host, 'blog', use_profile=False, help=_('blog/microblog management'))