#
# Configuration:
# neomuttrc (needs to be a single line):
+# set my_mdwn_extensions="extra,admonition,codehilite,sane_lists,smarty"
# macro compose B "\
-# <enter-command> source '$my_confdir/buildmimetree.py setup|'<enter>\
+# <enter-command> source '$my_confdir/buildmimetree.py \
+# --tempdir $tempdir --extensions $my_mdwn_extensions \
+# --css-file $my_confdir/htmlmail.css |'<enter>\
# <enter-command> sourc e \$my_mdwn_postprocess_cmd_file<enter>\
# " "Convert message into a modern MIME tree with inline images"
#
# Requirements:
# - python3
# - python3-markdown
+# - python3-beautifulsoup4
# Optional:
# - pytest
-# - Pynliner
-# - Pygments, if installed, then syntax highlighting is enabled
+# - Pynliner, provides --css-file and thus inline styling of HTML output
+# - Pygments, then syntax highlighting for fenced code is enabled
+#
+# Running tests:
+# pytest -x buildmimetree.py
#
# Latest version:
# https://git.madduck.net/etc/neomutt.git/blob_plain/HEAD:/.config/neomutt/buildmimetree.py
#
import sys
+import os.path
import pathlib
import markdown
import tempfile
import argparse
-from collections import namedtuple
+import re
+import mimetypes
+import bs4
+import xml.etree.ElementTree as etree
+import io
+import enum
+from contextlib import contextmanager
+from collections import namedtuple, OrderedDict
+from markdown.extensions import Extension
+from markdown.blockprocessors import BlockProcessor
+from markdown.inlinepatterns import ImageInlineProcessor, IMAGE_LINK_RE
+from email.utils import make_msgid
+from urllib import request
def parse_cli_args(*args, **kwargs):
)
)
parser.epilog = (
- "Copyright © 2022 martin f. krafft <madduck@madduck.net>.\n"
+ "Copyright © 2023 martin f. krafft <madduck@madduck.net>.\n"
"Released under the MIT licence"
)
- subp = parser.add_subparsers(help="Sub-command parsers", dest="mode")
- parser_setup = subp.add_parser("setup", help="Setup phase")
- parser_massage = subp.add_parser("massage", help="Massaging phase")
+ parser.add_argument(
+ "--extensions",
+ metavar="EXT[,EXT[,EXT]]",
+ type=str,
+ default="",
+ help="Markdown extension to use (comma-separated list)",
+ )
- parser_setup.add_argument(
- "--debug-commands",
+ if _PYNLINER:
+ parser.add_argument(
+ "--css-file",
+ metavar="FILE",
+ type=pathlib.Path,
+ default=os.devnull,
+ help="CSS file to merge with the final HTML",
+ )
+ else:
+ parser.set_defaults(css_file=None)
+
+ parser.add_argument(
+ "--related-to-html-only",
action="store_true",
- help="Turn on debug logging of commands generated to stderr",
+ help="Make related content be sibling to HTML parts only",
)
- parser_setup.add_argument(
- "--extension",
- "-x",
- metavar="EXTENSION",
- dest="extensions",
- nargs="?",
- default=[],
- action="append",
- help="Markdown extension to add to the list of extensions use",
+ def positive_integer(value):
+ try:
+ if int(value) > 0:
+ return int(value)
+
+ except ValueError:
+ pass
+
+ raise ValueError("Must be a positive integer")
+
+ parser.add_argument(
+ "--max-number-other-attachments",
+ metavar="INTEGER",
+ type=positive_integer,
+ default=20,
+ help="Maximum number of other attachments to expect",
+ )
+
+ parser.add_argument(
+ "--only-build",
+ "--just-build",
+ action="store_true",
+ help="Only build, don't send the message",
)
- parser_massage.add_argument(
+ parser.add_argument(
+ "--tempdir",
+ metavar="DIR",
+ type=pathlib.Path,
+ help="Specify temporary directory to use for attachments",
+ )
+
+ parser.add_argument(
"--debug-commands",
action="store_true",
help="Turn on debug logging of commands generated to stderr",
)
- parser_massage.add_argument(
+ parser.add_argument(
"--debug-walk",
action="store_true",
help="Turn on debugging to stderr of the MIME tree walk",
)
- parser_massage.add_argument(
- "--extensions",
- metavar="EXTENSIONS",
- type=str,
- default="",
- help="Markdown extension to use (comma-separated list)",
+ parser.add_argument(
+ "--dump-html",
+ metavar="FILE",
+ type=pathlib.Path,
+ help="Write the generated HTML to the file",
)
- parser_massage.add_argument(
+ subp = parser.add_subparsers(help="Sub-command parsers", dest="mode")
+ massage_p = subp.add_parser(
+ "massage", help="Massaging phase (internal use)"
+ )
+
+ massage_p.add_argument(
"--write-commands-to",
- metavar="PATH",
+ "-o",
+ metavar="FILE",
dest="cmdpath",
+ type=pathlib.Path,
+ required=True,
help="Temporary file path to write commands to",
)
- parser_massage.add_argument(
+ massage_p.add_argument(
"MAILDRAFT",
nargs="?",
+ type=pathlib.Path,
help="If provided, the script is invoked as editor on the mail draft",
)
return parser.parse_args(*args, **kwargs)
+# [ FILE I/O HANDLING ] #######################################################
+
+
+class File:
+
+ class Op(enum.Enum):
+ R = enum.auto()
+ W = enum.auto()
+
+ def __init__(self, path=None, mode="r", content=None, **kwargs):
+ if path:
+ if content:
+ raise RuntimeError("Cannot specify path and content for File")
+
+ self._path = (
+ path if isinstance(path, pathlib.Path) else pathlib.Path(path)
+ )
+ else:
+ self._path = None
+
+ if content and not re.search(r"[r+]", mode):
+ raise RuntimeError("Cannot specify content without read mode")
+
+ self._cache = {
+ File.Op.R: [content] if content else [],
+ File.Op.W: []
+ }
+ self._lastop = None
+ self._mode = mode
+ self._kwargs = kwargs
+ self._file = None
+
+ def open(self):
+ if self._path:
+ self._file = open(self._path, self._mode, **self._kwargs)
+ elif "b" in self._mode:
+ self._file = io.BytesIO()
+ else:
+ self._file = io.StringIO()
+
+ def __enter__(self):
+ self.open()
+ return self
+
+ def __exit__(self, exc_type, exc_val, exc_tb):
+ self.close()
+
+ def close(self):
+ self._file.close()
+ self._file = None
+ self._cache[File.Op.R] = self._cache[File.Op.W]
+ self._lastop = None
+
+ def _get_cache(self, op):
+ return (b"" if "b" in self._mode else "").join(self._cache[op])
+
+ def _add_to_cache(self, op, s):
+ self._cache[op].append(s)
+
+ def read(self, *, cache=True):
+ if cache and self._cache[File.Op.R]:
+ return self._get_cache(File.Op.R)
+
+ if self._lastop == File.Op.W:
+ try:
+ self._file.seek(0)
+ except io.UnsupportedOperation:
+ pass
+
+ self._lastop = File.Op.R
+
+ if cache:
+ self._add_to_cache(File.Op.R, self._file.read())
+ return self._get_cache(File.Op.R)
+ else:
+ return self._file.read()
+
+ def write(self, s, *, cache=True):
+
+ if self._lastop == File.Op.R:
+ try:
+ self._file.seek(0)
+ except io.UnsupportedOperation:
+ pass
+
+ if cache:
+ self._add_to_cache(File.Op.W, s)
+
+ self._cache[File.Op.R] = self._cache[File.Op.W]
+
+ written = self._file.write(s)
+ self._file.flush()
+ self._lastop = File.Op.W
+ return written
+
+ path = property(lambda s: s._path)
+
+ def __repr__(self):
+ return (
+ f'<File path={self._path or "(buffered)"} open={bool(self._file)} '
+ f"rcache={sum(len(c) for c in self._rcache) if self._rcache is not None else False} "
+ f"wcache={sum(len(c) for c in self._wcache) if self._wcache is not None else False}>"
+ )
+
+
+class FileFactory:
+ def __init__(self):
+ self._files = []
+
+ def __call__(self, path=None, mode="r", content=None, **kwargs):
+ f = File(path, mode, content, **kwargs)
+ self._files.append(f)
+ return f
+
+ def __len__(self):
+ return self._files.__len__()
+
+ def pop(self, idx=-1):
+ return self._files.pop(idx)
+
+ def __getitem__(self, idx):
+ return self._files.__getitem__(idx)
+
+ def __contains__(self, f):
+ return self._files.__contains__(f)
+
+
+class FakeFileFactory(FileFactory):
+ def __init__(self):
+ super().__init__()
+ self._paths2files = OrderedDict()
+
+ def __call__(self, path=None, mode="r", content=None, **kwargs):
+ if path in self._paths2files:
+ return self._paths2files[path]
+
+ f = super().__call__(None, mode, content, **kwargs)
+ self._paths2files[path] = f
+
+ mypath = path
+
+ class FakeFile(File):
+ path = mypath
+
+ # this is quality Python! We do this so that the fake file, which has
+ # no path, fake-pretends to have a path for testing purposes.
+
+ f.__class__ = FakeFile
+ return f
+
+ def __getitem__(self, path):
+ return self._paths2files.__getitem__(path)
+
+ def get(self, path, default):
+ return self._paths2files.get(path, default)
+
+ def pop(self, last=True):
+ return self._paths2files.popitem(last)
+
+ def __repr__(self):
+ return (
+ f"<FakeFileFactory nfiles={len(self._files)} "
+ f"paths={len(self._paths2files)}>"
+ )
+
+
+# [ IMAGE HANDLING ] ##########################################################
+
+
+InlineImageInfo = namedtuple(
+ "InlineImageInfo", ["cid", "desc"], defaults=[None]
+)
+
+
+class ImageRegistry:
+ def __init__(self):
+ self._images = OrderedDict()
+
+ def register(self, path, description=None):
+ # path = str(pathlib.Path(path).expanduser())
+ path = os.path.expanduser(path)
+ if path.startswith("/"):
+ path = f"file://{path}"
+ cid = make_msgid()[1:-1]
+ self._images[path] = InlineImageInfo(cid, description)
+ return cid
+
+ def __iter__(self):
+ return self._images.__iter__()
+
+ def __getitem__(self, idx):
+ return self._images.__getitem__(idx)
+
+ def __len__(self):
+ return self._images.__len__()
+
+ def items(self):
+ return self._images.items()
+
+ def __repr__(self):
+ return f"<ImageRegistry(items={len(self._images)})>"
+
+ def __str__(self):
+ return self._images.__str__()
+
+
+class InlineImageExtension(Extension):
+ class RelatedImageInlineProcessor(ImageInlineProcessor):
+ def __init__(self, re, md, registry):
+ super().__init__(re, md)
+ self._registry = registry
+
+ def handleMatch(self, m, data):
+ el, start, end = super().handleMatch(m, data)
+ if "src" in el.attrib:
+ src = el.attrib["src"]
+ if "://" not in src or src.startswith("file://"):
+ # We only inline local content
+ cid = self._registry.register(
+ el.attrib["src"],
+ el.attrib.get("title", el.attrib.get("alt")),
+ )
+ el.attrib["src"] = f"cid:{cid}"
+ return el, start, end
+
+ def __init__(self, registry):
+ super().__init__()
+ self._image_registry = registry
+
+ INLINE_PATTERN_NAME = "image_link"
+
+ def extendMarkdown(self, md):
+ md.registerExtension(self)
+ inline_image_proc = self.RelatedImageInlineProcessor(
+ IMAGE_LINK_RE, md, self._image_registry
+ )
+ md.inlinePatterns.register(
+ inline_image_proc, InlineImageExtension.INLINE_PATTERN_NAME, 150
+ )
+
+
+def markdown_with_inline_image_support(
+ text,
+ *,
+ mdwn=None,
+ image_registry=None,
+ extensions=None,
+ extension_configs=None,
+):
+ registry = (
+ image_registry if image_registry is not None else ImageRegistry()
+ )
+ inline_image_handler = InlineImageExtension(registry=registry)
+ extensions = extensions or []
+ extensions.append(inline_image_handler)
+ mdwn = markdown.Markdown(
+ extensions=extensions, extension_configs=extension_configs
+ )
+
+ htmltext = mdwn.convert(text)
+
+ def replace_image_with_cid(matchobj):
+ for m in (matchobj.group(1), f"file://{matchobj.group(1)}"):
+ if m in registry:
+ return f"(cid:{registry[m].cid}"
+ return matchobj.group(0)
+
+ text = re.sub(r"\(([^)\s]+)", replace_image_with_cid, text)
+ return text, htmltext, registry, mdwn
+
+
+# [ CSS STYLING ] #############################################################
+
+
+try:
+ import pynliner
+
+ _PYNLINER = True
+
+except ImportError:
+ _PYNLINER = False
+
+try:
+ from pygments.formatters import get_formatter_by_name
+
+ _CODEHILITE_CLASS = "codehilite"
+
+ _PYGMENTS_CSS = get_formatter_by_name(
+ "html", style="default"
+ ).get_style_defs(f".{_CODEHILITE_CLASS}")
+
+except ImportError:
+ _PYGMENTS_CSS = None
+
+
+def apply_styling(html, css):
+ return (
+ pynliner.Pynliner()
+ .from_string(html)
+ .with_cssString("\n".join(s for s in [_PYGMENTS_CSS, css] if s))
+ .run()
+ )
+
+
+# [ QUOTE HANDLING ] ##########################################################
+
+
+class QuoteToAdmonitionExtension(Extension):
+ class EmailQuoteBlockProcessor(BlockProcessor):
+ RE = re.compile(r"(?:^|\n)>\s*(.*)")
+
+ def __init__(self, parser):
+ super().__init__(parser)
+ self._title = None
+ self._disable = False
+
+ def test(self, parent, blocks):
+ if self._disable:
+ return False
+
+ if markdown.util.nearing_recursion_limit():
+ return False
+
+ lines = blocks.splitlines()
+ if len(lines) < 2:
+ if not self._title:
+ return False
+
+ elif not self.RE.search(lines[0]):
+ return False
+
+ return len(lines) > 0
+
+ elif not self.RE.search(lines[0]) and self.RE.search(lines[1]):
+ return True
+
+ elif self._title and self.RE.search(lines[1]):
+ return True
+
+ return False
+
+ def run(self, parent, blocks):
+ quotelines = blocks.pop(0).splitlines()
+
+ cont = bool(self._title)
+ if not self.RE.search(quotelines[0]):
+ self._title = quotelines.pop(0)
+
+ admonition = etree.SubElement(parent, "div")
+ admonition.set(
+ "class", f"admonition quote{' continued' if cont else ''}"
+ )
+ self.parser.parseChunk(admonition, self._title)
+
+ admonition[0].set("class", "admonition-title")
+ with self.disable():
+ self.parser.parseChunk(
+ admonition, "\n".join(quotelines)
+ )
+
+ @contextmanager
+ def disable(self):
+ self._disable = True
+ yield True
+ self._disable = False
+
+ @classmethod
+ def clean(klass, line):
+ m = klass.RE.match(line)
+ return m.group(1) if m else line
+
+ def extendMarkdown(self, md):
+ md.registerExtension(self)
+ email_quote_proc = self.EmailQuoteBlockProcessor(md.parser)
+ md.parser.blockprocessors.register(email_quote_proc, "emailquote", 25)
+
+
# [ PARTS GENERATION ] ########################################################
def __str__(self):
return f"<multipart/{self.subtype}> children={len(self.children)}"
+ def __hash__(self):
+ return hash(str(self.subtype) + "".join(str(self.children)))
-def convert_markdown_to_html(maildraft, *, extensions=None):
- draftpath = pathlib.Path(maildraft)
- textpart = Part(
- "text", "plain", draftpath, "Plain-text version", orig=True
+
+def collect_inline_images(
+ image_registry, *, tempdir=None, filefactory=FileFactory()
+):
+ relparts = []
+ for path, info in image_registry.items():
+ if path.startswith("cid:"):
+ continue
+
+ data = request.urlopen(path)
+
+ mimetype = data.headers["Content-Type"]
+ ext = mimetypes.guess_extension(mimetype)
+ tempfilename = tempfile.mkstemp(prefix="img", suffix=ext, dir=tempdir)
+ path = pathlib.Path(tempfilename[1])
+
+ with filefactory(path, "w+b") as out_f:
+ out_f.write(data.read())
+
+ # filewriter_fn(path, data.read(), "w+b")
+
+ desc = (
+ f'Inline image: "{info.desc}"'
+ if info.desc
+ else f"Inline image {str(len(relparts)+1)}"
+ )
+ relparts.append(
+ Part(*mimetype.split("/"), path, cid=info.cid, desc=desc)
+ )
+
+ return relparts
+
+
+EMAIL_SIG_SEP = "\n-- \n"
+HTML_SIG_MARKER = "=htmlsig "
+
+
+def make_html_doc(body, sig=None):
+ ret = (
+ "<!DOCTYPE html>\n"
+ "<html>\n"
+ "<head>\n"
+ '<meta http-equiv="content-type" content="text/html; charset=UTF-8">\n' # noqa: E501
+ '<meta name="viewport" content="width=device-width, initial-scale=1.0">\n' # noqa: E501
+ "</head>\n"
+ "<body>\n"
+ f"{body}\n"
)
- with open(draftpath, "r", encoding="utf-8") as textmarkdown:
- text = textmarkdown.read()
+ if sig:
+ nl = "\n"
+ ret = (
+ f'{ret}<div id="signature"><span class="sig_separator">{EMAIL_SIG_SEP.strip(nl)}</span>\n' # noqa: E501
+ f"{sig}\n"
+ "</div>"
+ )
- mdwn = markdown.Markdown(extensions=extensions)
- html = mdwn.convert(text)
+ return f"{ret}\n </body>\n</html>"
- htmlpath = draftpath.with_suffix(".html")
- htmlpart = Part("text", "html", htmlpath, "HTML version")
- with open(
- htmlpath, "w", encoding="utf-8", errors="xmlcharrefreplace"
- ) as texthtml:
- texthtml.write(html)
-
- logopart = Part(
- "image",
- "png",
- "/usr/share/doc/neomutt/logo/neomutt-256.png",
- "Logo",
- "neomutt-256.png",
+def make_text_mail(text, sig=None):
+ return EMAIL_SIG_SEP.join((text, sig)) if sig else text
+
+
+def extract_signature(text, *, filefactory=FileFactory()):
+ parts = text.split(EMAIL_SIG_SEP, 1)
+ if len(parts) == 1:
+ return text, None, None
+
+ lines = parts[1].splitlines()
+ if lines[0].startswith(HTML_SIG_MARKER):
+ path = pathlib.Path(re.split(r" +", lines.pop(0), maxsplit=1)[1])
+ textsig = "\n".join(lines)
+
+ with filefactory(path.expanduser()) as sig_f:
+ sig_input = sig_f.read()
+
+ soup = bs4.BeautifulSoup(sig_input, "html.parser")
+
+ style = str(soup.style.extract()) if soup.style else ""
+ for sig_selector in (
+ "#signature",
+ "#signatur",
+ "#emailsig",
+ ".signature",
+ ".signatur",
+ ".emailsig",
+ "body",
+ "div",
+ ):
+ sig = soup.select_one(sig_selector)
+ if sig:
+ break
+
+ if not sig:
+ return parts[0], textsig, style + sig_input
+
+ if sig.attrs.get("id") == "signature":
+ sig = "".join(str(c) for c in sig.children)
+
+ return parts[0], textsig, style + str(sig)
+
+ return parts[0], parts[1], None
+
+
+def convert_markdown_to_html(
+ draft_f,
+ *,
+ related_to_html_only=False,
+ css_f=None,
+ htmldump_f=None,
+ filefactory=FileFactory(),
+ tempdir=None,
+ extensions=None,
+ extension_configs=None,
+):
+ # TODO extension_configs need to be handled differently
+ extension_configs = extension_configs or {}
+ extension_configs.setdefault("pymdownx.highlight", {})[
+ "css_class"
+ ] = _CODEHILITE_CLASS
+
+ extensions = extensions or []
+ extensions.append(QuoteToAdmonitionExtension())
+
+ draft = draft_f.read()
+ origtext, textsig, htmlsig = extract_signature(
+ draft, filefactory=filefactory
)
- return Multipart(
- "relative",
- [
- Multipart(
- "alternative",
- [textpart, htmlpart],
- "Group of alternative content",
- ),
- logopart,
- ],
- "Group of related content",
+ (
+ origtext,
+ htmltext,
+ image_registry,
+ mdwn,
+ ) = markdown_with_inline_image_support(
+ origtext, extensions=extensions, extension_configs=extension_configs
+ )
+
+ if htmlsig:
+ if not textsig:
+ # TODO: decide what to do if there is no plain-text version
+ raise NotImplementedError("HTML signature but no text alternative")
+
+ soup = bs4.BeautifulSoup(htmlsig, "html.parser")
+ for img in soup.find_all("img"):
+ uri = img.attrs["src"]
+ desc = img.attrs.get("title", img.attrs.get("alt"))
+ cid = image_registry.register(uri, desc)
+ img.attrs["src"] = f"cid:{cid}"
+
+ htmlsig = str(soup)
+
+ elif textsig:
+ (
+ textsig,
+ htmlsig,
+ image_registry,
+ mdwn,
+ ) = markdown_with_inline_image_support(
+ textsig,
+ extensions=extensions,
+ extension_configs=extension_configs,
+ image_registry=image_registry,
+ mdwn=mdwn,
+ )
+
+ origtext = make_text_mail(origtext, textsig)
+ draft_f.write(origtext)
+ textpart = Part(
+ "text", "plain", draft_f.path, "Plain-text version", orig=True
+ )
+
+ htmltext = make_html_doc(htmltext, htmlsig)
+ htmltext = apply_styling(htmltext, css_f.read() if css_f else None)
+
+ if draft_f.path:
+ htmlpath = draft_f.path.with_suffix(".html")
+ else:
+ htmlpath = pathlib.Path(
+ tempfile.mkstemp(suffix=".html", dir=tempdir)[1]
+ )
+ with filefactory(
+ htmlpath, "w", encoding="utf-8", errors="xmlcharrefreplace"
+ ) as out_f:
+ out_f.write(htmltext)
+ htmlpart = Part("text", "html", htmlpath, "HTML version")
+
+ if htmldump_f:
+ htmldump_f.write(htmltext)
+
+ imgparts = collect_inline_images(
+ image_registry, tempdir=tempdir, filefactory=filefactory
)
+ if related_to_html_only:
+ # If there are inline image part, they will be contained within a
+ # multipart/related part along with the HTML part only
+ if imgparts:
+ # replace htmlpart with a multipart/related container of the HTML
+ # parts and the images
+ htmlpart = Multipart(
+ "relative", [htmlpart] + imgparts, "Group of related content"
+ )
+
+ return Multipart(
+ "alternative", [textpart, htmlpart], "Group of alternative content"
+ )
+
+ else:
+ # If there are inline image part, they will be siblings to the
+ # multipart/alternative tree within a multipart/related part
+ altpart = Multipart(
+ "alternative", [textpart, htmlpart], "Group of alternative content"
+ )
+ if imgparts:
+ return Multipart(
+ "relative", [altpart] + imgparts, "Group of related content"
+ )
+ else:
+ return altpart
+
class MIMETreeDFWalker:
def __init__(self, *, visitor_fn=None, debug=False):
- self._visitor_fn = visitor_fn
+ self._visitor_fn = visitor_fn or self._echovisit
self._debug = debug
+ def _echovisit(self, node, ancestry, debugprint):
+ debugprint(f"node={node} ancestry={ancestry}")
+
def walk(self, root, *, visitor_fn=None):
"""
Recursive function to implement a depth-dirst walk of the MIME-tree
rooted at `root`.
"""
-
if isinstance(root, list):
- root = Multipart("mixed", children=root)
+ if len(root) > 1:
+ root = Multipart("mixed", children=root)
+ else:
+ root = root[0]
self._walk(
root,
- stack=[],
+ ancestry=[],
+ descendents=[],
visitor_fn=visitor_fn or self._visitor_fn,
)
- def _walk(self, node, *, stack, visitor_fn):
+ def _walk(self, node, *, ancestry, descendents, visitor_fn):
# Let's start by enumerating the parts at the current level. At the
- # root level, stack will be the empty list, and we expect a multipart/*
- # container at this level. Later, e.g. within a mutlipart/alternative
- # container, the subtree will just be the alternative parts, while the
- # top of the stack will be the multipart/alternative container, which
- # we will process after the following loop.
-
- lead = f"{'| '*len(stack)}|-"
+ # root level, ancestry will be the empty list, and we expect a
+ # multipart/* container at this level. Later, e.g. within a
+ # mutlipart/alternative container, the subtree will just be the
+ # alternative parts, while the top of the ancestry will be the
+ # multipart/alternative container, which we will process after the
+ # following loop.
+
+ lead = f"{'│ '*len(ancestry)}"
if isinstance(node, Multipart):
self.debugprint(
- f"{lead}{node} parents={[s.subtype for s in stack]}"
+ f"{lead}├{node} ancestry={[s.subtype for s in ancestry]}"
)
- # Depth-first, so push the current container onto the stack,
- # then descend …
- stack.append(node)
- self.debugprint("| " * (len(stack) + 1))
+ # Depth-first, so push the current container onto the ancestry
+ # stack, then descend …
+ ancestry.append(node)
+ self.debugprint(lead + "│ " * 2)
for child in node.children:
self._walk(
child,
- stack=stack,
+ ancestry=ancestry,
+ descendents=descendents,
visitor_fn=visitor_fn,
)
- self.debugprint("| " * len(stack))
- assert stack.pop() == node
+ assert ancestry.pop() == node
+ sibling_descendents = descendents
+ descendents.extend(node.children)
else:
- self.debugprint(f"{lead}{node}")
+ self.debugprint(f"{lead}├{node}")
+ sibling_descendents = descendents
+
+ if False and ancestry:
+ self.debugprint(lead[:-1] + " │")
if visitor_fn:
- visitor_fn(node, stack, debugprint=self.debugprint)
+ visitor_fn(
+ node, ancestry, sibling_descendents, debugprint=self.debugprint
+ )
def debugprint(self, s, **kwargs):
if self._debug:
self._cmd1.append(s)
def push(self, s):
- s = s.replace('"', '"')
+ s = s.replace('"', r"\"")
s = f'push "{s}"'
self.debugprint(s)
self._push.insert(0, s)
def do_setup(
- extensions=None, *, out_f=sys.stdout, temppath=None, debug_commands=False
+ *,
+ out_f=sys.stdout,
+ temppath=None,
+ tempdir=None,
+ debug_commands=False,
):
- extensions = extensions or []
temppath = temppath or pathlib.Path(
- tempfile.mkstemp(prefix="muttmdwn-")[1]
+ tempfile.mkstemp(prefix="muttmdwn-", dir=tempdir)[1]
)
cmds = MuttCommands(out_f, debug=debug_commands)
- editor = f"{sys.argv[0]} massage --write-commands-to {temppath}"
- if extensions:
- editor = f'{editor} --extensions {",".join(extensions)}'
+ editor = f"{' '.join(sys.argv)} massage --write-commands-to {temppath}"
cmds.cmd('set my_editor="$editor"')
cmds.cmd('set my_edit_headers="$edit_headers"')
def do_massage(
- maildraft,
- cmdpath,
+ draft_f,
+ cmd_f,
*,
extensions=None,
+ css_f=None,
+ htmldump_f=None,
converter=convert_markdown_to_html,
+ related_to_html_only=True,
+ only_build=False,
+ max_other_attachments=20,
+ tempdir=None,
debug_commands=False,
debug_walk=False,
):
# draft, and whatever commands we write to the file given as cmdpath will
# be run by the second source command in the macro definition.
- with open(cmdpath, "w") as cmd_f:
- # Let's start by cleaning up what the setup did (see above), i.e. we
- # restore the $editor and $edit_headers variables, and also unset the
- # variable used to identify the command file we're currently writing
- # to.
- cmds = MuttCommands(cmd_f, debug=debug_commands)
- cmds.cmd('set editor="$my_editor"')
- cmds.cmd('set edit_headers="$my_edit_headers"')
- cmds.cmd("unset my_editor")
- cmds.cmd("unset my_edit_headers")
-
- # let's flush those commands, as there'll be a lot of pushes from now
- # on, which need to be run in reverse order
- cmds.flush()
-
- extensions = extensions.split(",") if extensions else []
- tree = converter(maildraft, extensions=extensions)
-
- mimetree = MIMETreeDFWalker(debug=args.debug_walk)
-
- def visitor_fn(item, stack, *, debugprint=None):
- """
- Visitor function called for every node (part) of the MIME tree,
- depth-first, and responsible for telling NeoMutt how to assemble
- the tree.
- """
- if isinstance(item, Part):
- # We've hit a leaf-node, i.e. an alternative or a related part
- # with actual content.
-
- # If the part is not an original part, i.e. doesn't already
- # exist, we must first add it.
- if not item.orig:
- cmds.push(f"<attach-file>{item.path}<enter>")
- cmds.push("<toggle-unlink><toggle-disposition>")
- if item.cid:
- cmds.push(
- f"<edit-content-id>\\Ca\\Ck{item.cid}<enter>"
- )
-
- # If the item (including the original) comes with a
- # description, then we might just as well update the NeoMutt
- # tree now:
- if item.desc:
- cmds.push(f"<edit-description>\\Ca\\Ck{item.desc}<enter>")
-
- # Finally, tag the entry that we just processed, so that when
- # we're done at this level, as we walk up the stack, the items
- # to be grouped will already be tagged and ready.
- cmds.push("<tag-entry>")
-
- elif isinstance(item, Multipart):
- # This node has children, but we already visited them (see
- # above), and so they have been tagged in NeoMutt's compose
- # window. Now it's just a matter of telling NeoMutt to do the
- # appropriate grouping:
- if item.subtype == "alternative":
- cmds.push("<group-alternatives>")
- elif item.subtype == "relative":
- cmds.push("<group-related>")
- elif item.subtype == "multilingual":
- cmds.push("<group-multilingual>")
-
- # Again, if there is a description, we might just as well:
- if item.desc:
- cmds.push(f"<edit-description>\\Ca\\Ck{item.desc}<enter>")
-
- # Finally, if we're at non-root level, tag the new container,
- # as it might itself be part of a container, to be processed
- # one level up:
- if stack:
- cmds.push("<tag-entry>")
+ # Let's start by cleaning up what the setup did (see above), i.e. we
+ # restore the $editor and $edit_headers variables, and also unset the
+ # variable used to identify the command file we're currently writing
+ # to.
+ cmds = MuttCommands(cmd_f, debug=debug_commands)
+
+ extensions = extensions.split(",") if extensions else []
+ tree = converter(
+ draft_f,
+ css_f=css_f,
+ htmldump_f=htmldump_f,
+ related_to_html_only=related_to_html_only,
+ tempdir=tempdir,
+ extensions=extensions,
+ )
+
+ mimetree = MIMETreeDFWalker(debug=debug_walk)
+ state = dict(pos=1, tags={}, parts=1)
+
+ def visitor_fn(item, ancestry, descendents, *, debugprint=None):
+ """
+ Visitor function called for every node (part) of the MIME tree,
+ depth-first, and responsible for telling NeoMutt how to assemble
+ the tree.
+ """
+ KILL_LINE = r"\Ca\Ck"
+
+ if isinstance(item, Part):
+ # We've hit a leaf-node, i.e. an alternative or a related part
+ # with actual content.
+
+ # Let's add the part
+ if item.orig:
+ # The original source already exists in the NeoMutt tree, but
+ # the underlying file may have been modified, so we need to
+ # update the encoding, but that's it:
+ cmds.push("<first-entry>")
+ cmds.push("<update-encoding>")
+
+ # We really just need to be able to assume that at this point,
+ # NeoMutt is at position 1, and that we've processed only this
+ # part so far. Nevermind about actual attachments, we can
+ # safely ignore those as they stay at the end.
+ assert state["pos"] == 1
+ assert state["parts"] == 1
else:
- # We should never get here
- assert not "is valid part"
+ # … whereas all other parts need to be added, and they're all
+ # considered to be temporary and inline:
+ cmds.push(f"<attach-file>{item.path}<enter>")
+ cmds.push("<toggle-unlink><toggle-disposition>")
+
+ # This added a part at the end of the list of parts, and that's
+ # just how many parts we've seen so far, so it's position in
+ # the NeoMutt compose list is the count of parts
+ state["parts"] += 1
+ state["pos"] = state["parts"]
+
+ # If the item (including the original) comes with additional
+ # information, then we might just as well update the NeoMutt
+ # tree now:
+ if item.cid:
+ cmds.push(f"<edit-content-id>{KILL_LINE}{item.cid}<enter>")
+
+ # Now for the biggest hack in this script, which is to handle
+ # attachments, such as PDFs, that aren't related or alternatives.
+ # The problem is that when we add an inline image, it always gets
+ # appended to the list, i.e. inserted *after* other attachments.
+ # Since we don't know the number of attachments, we also cannot
+ # infer the postition of the new attachment. Therefore, we bubble
+ # it all the way to the top, only to then move it down again:
+ if state["pos"] > 1: # skip for the first part
+ for i in range(max_other_attachments):
+ # could use any number here, but has to be larger than the
+ # number of possible attachments. The performance
+ # difference of using a high number is negligible.
+ # Bubble up the new part
+ cmds.push("<move-up>")
+
+ # As we push the part to the right position in the list (i.e.
+ # the last of the subset of attachments this script added), we
+ # must handle the situation that subtrees are skipped by
+ # NeoMutt. Hence, the actual number of positions to move down
+ # is decremented by the number of descendents so far
+ # encountered.
+ for i in range(1, state["pos"] - len(descendents)):
+ cmds.push("<move-down>")
+
+ elif isinstance(item, Multipart):
+ # This node has children, but we already visited them (see
+ # above). The tags dictionary of State should contain a list of
+ # their positions in the NeoMutt compose window, so iterate those
+ # and tag the parts there:
+ n_tags = len(state["tags"][item])
+ for tag in state["tags"][item]:
+ cmds.push(f"<jump>{tag}<enter><tag-entry>")
+
+ if item.subtype == "alternative":
+ cmds.push("<group-alternatives>")
+ elif item.subtype in ("relative", "related"):
+ cmds.push("<group-related>")
+ elif item.subtype == "multilingual":
+ cmds.push("<group-multilingual>")
+ else:
+ raise NotImplementedError(
+ f"Handling of multipart/{item.subtype} is not implemented"
+ )
- # -----------------
- # End of visitor_fn
+ state["pos"] -= n_tags - 1
+ state["parts"] += 1
- # Let's walk the tree and visit every node with our fancy visitor
- # function
- mimetree.walk(tree, visitor_fn=visitor_fn)
+ else:
+ # We should never get here
+ raise RuntimeError(f"Type {type(item)} is unexpected: {item}")
+
+ # If the item has a description, we might just as well add it
+ if item.desc:
+ cmds.push(f"<edit-description>{KILL_LINE}{item.desc}<enter>")
+
+ if ancestry:
+ # If there's an ancestry, record the current (assumed) position in
+ # the NeoMutt compose window as needed-to-tag by our direct parent
+ # (i.e. the last item of the ancestry)
+ state["tags"].setdefault(ancestry[-1], []).append(state["pos"])
+
+ lead = "│ " * (len(ancestry) + 1) + "* "
+ debugprint(
+ f"{lead}ancestry={[a.subtype for a in ancestry]}\n"
+ f"{lead}descendents={[d.subtype for d in descendents]}\n"
+ f"{lead}children_positions={state['tags'][ancestry[-1]]}\n"
+ f"{lead}pos={state['pos']}, parts={state['parts']}"
+ )
- # Finally, cleanup. Since we're responsible for removing the temporary
- # file, how's this for a little hack?
- cmds.cmd(f"source 'rm -f {args.cmdpath}|'")
- cmds.cmd("unset my_mdwn_postprocess_cmd_file")
- cmds.flush()
+ # -----------------
+ # End of visitor_fn
+
+ # Let's walk the tree and visit every node with our fancy visitor
+ # function
+ mimetree.walk(tree, visitor_fn=visitor_fn)
+
+ if not only_build:
+ cmds.push("<send-message>")
+
+ # Finally, cleanup. Since we're responsible for removing the temporary
+ # file, how's this for a little hack?
+ try:
+ filename = cmd_f.name
+ except AttributeError:
+ filename = "pytest_internal_file"
+ cmds.cmd(f"source 'rm -f {filename}|'")
+ cmds.cmd('set editor="$my_editor"')
+ cmds.cmd('set edit_headers="$my_edit_headers"')
+ cmds.cmd("unset my_editor")
+ cmds.cmd("unset my_edit_headers")
+ cmds.cmd("unset my_mdwn_postprocess_cmd_file")
+ cmds.flush()
# [ CLI ENTRY ] ###############################################################
if __name__ == "__main__":
args = parse_cli_args()
- if args.mode == "setup":
- do_setup(args.extensions, debug_commands=args.debug_commands)
-
- elif args.mode == "massage":
- do_massage(
- args.MAILDRAFT,
- args.cmdpath,
- extensions=args.extensions,
+ if args.mode is None:
+ do_setup(
+ tempdir=args.tempdir,
debug_commands=args.debug_commands,
- debug_walk=args.debug_walk,
)
+ elif args.mode == "massage":
+ with (
+ File(args.MAILDRAFT, "r+") as draft_f,
+ File(args.cmdpath, "w") as cmd_f,
+ File(args.css_file, "r") as css_f,
+ File(args.dump_html, "w") as htmldump_f,
+ ):
+ do_massage(
+ draft_f,
+ cmd_f,
+ extensions=args.extensions,
+ css_f=css_f,
+ htmldump_f=htmldump_f,
+ related_to_html_only=args.related_to_html_only,
+ max_other_attachments=args.max_number_other_attachments,
+ only_build=args.only_build,
+ tempdir=args.tempdir,
+ debug_commands=args.debug_commands,
+ debug_walk=args.debug_walk,
+ )
+
# [ TESTS ] ###################################################################
class Tests:
@pytest.fixture
def const1(self):
- return "CONSTANT STRING 1"
+ return "Curvature Vest Usher Dividing+T#iceps Senior"
@pytest.fixture
def const2(self):
- return "CONSTANT STRING 2"
+ return "Habitant Celestial 2litzy Resurf/ce Headpiece Harmonics"
+
+ @pytest.fixture
+ def fakepath(self):
+ return pathlib.Path("/does/not/exist")
+
+ @pytest.fixture
+ def fakepath2(self):
+ return pathlib.Path("/does/not/exist/either")
# NOTE: tests using the capsys fixture must specify sys.stdout to the
# functions they call, else old stdout is used and not captured
+ @pytest.mark.muttctrl
def test_MuttCommands_cmd(self, const1, const2, capsys):
"Assert order of commands"
cmds = MuttCommands(out_f=sys.stdout)
captured = capsys.readouterr()
assert captured.out == "\n".join((const1, const2, ""))
+ @pytest.mark.muttctrl
def test_MuttCommands_push(self, const1, const2, capsys):
"Assert reverse order of pushes"
cmds = MuttCommands(out_f=sys.stdout)
== ('"\npush "'.join(("", const2, const1, "")))[2:-6]
)
+ @pytest.mark.muttctrl
+ def test_MuttCommands_push_escape(self, const1, const2, capsys):
+ cmds = MuttCommands(out_f=sys.stdout)
+ cmds.push(f'"{const1}"')
+ cmds.flush()
+ captured = capsys.readouterr()
+ assert f'"\\"{const1}\\""' in captured.out
+
+ @pytest.mark.muttctrl
def test_MuttCommands_cmd_push_mixed(self, const1, const2, capsys):
"Assert reverse order of pushes"
cmds = MuttCommands(out_f=sys.stdout)
assert lines[5] in lines_out[7]
@pytest.fixture
- def basic_mime_tree(self):
+ def mime_tree_related_to_alternative(self):
return Multipart(
- "related",
+ "relative",
children=[
Multipart(
"alternative",
children=[
- Part("text", "plain", "part.txt", desc="Plain"),
+ Part(
+ "text",
+ "plain",
+ "part.txt",
+ desc="Plain",
+ orig=True,
+ ),
Part("text", "html", "part.html", desc="HTML"),
],
desc="Alternative",
desc="Related",
)
- def test_MIMETreeDFWalker_depth_first_walk(self, basic_mime_tree):
+ @pytest.fixture
+ def mime_tree_related_to_html(self):
+ return Multipart(
+ "alternative",
+ children=[
+ Part(
+ "text",
+ "plain",
+ "part.txt",
+ desc="Plain",
+ orig=True,
+ ),
+ Multipart(
+ "relative",
+ children=[
+ Part("text", "html", "part.html", desc="HTML"),
+ Part(
+ "text",
+ "png",
+ "logo.png",
+ cid="logo.png",
+ desc="Logo",
+ ),
+ ],
+ desc="Related",
+ ),
+ ],
+ desc="Alternative",
+ )
+
+ @pytest.fixture
+ def mime_tree_nested(self):
+ return Multipart(
+ "relative",
+ children=[
+ Multipart(
+ "alternative",
+ children=[
+ Part(
+ "text",
+ "plain",
+ "part.txt",
+ desc="Plain",
+ orig=True,
+ ),
+ Multipart(
+ "alternative",
+ children=[
+ Part(
+ "text",
+ "plain",
+ "part.txt",
+ desc="Nested plain",
+ ),
+ Part(
+ "text",
+ "html",
+ "part.html",
+ desc="Nested HTML",
+ ),
+ ],
+ desc="Nested alternative",
+ ),
+ ],
+ desc="Alternative",
+ ),
+ Part(
+ "text",
+ "png",
+ "logo.png",
+ cid="logo.png",
+ desc="Logo",
+ ),
+ ],
+ desc="Related",
+ )
+
+ @pytest.mark.treewalk
+ def test_MIMETreeDFWalker_depth_first_walk(
+ self, mime_tree_related_to_alternative
+ ):
mimetree = MIMETreeDFWalker()
items = []
- def visitor_fn(item, stack, debugprint):
- items.append((item, len(stack)))
+ def visitor_fn(item, ancestry, descendents, debugprint):
+ items.append((item, len(ancestry), len(descendents)))
- mimetree.walk(basic_mime_tree, visitor_fn=visitor_fn)
+ mimetree.walk(
+ mime_tree_related_to_alternative, visitor_fn=visitor_fn
+ )
assert len(items) == 5
assert items[0][0].subtype == "plain"
assert items[0][1] == 2
+ assert items[0][2] == 0
assert items[1][0].subtype == "html"
assert items[1][1] == 2
+ assert items[1][2] == 0
assert items[2][0].subtype == "alternative"
assert items[2][1] == 1
+ assert items[2][2] == 2
assert items[3][0].subtype == "png"
assert items[3][1] == 1
- assert items[4][0].subtype == "related"
+ assert items[3][2] == 2
+ assert items[4][0].subtype == "relative"
assert items[4][1] == 0
+ assert items[4][2] == 4
- def test_MIMETreeDFWalker_list_to_mixed(self, basic_mime_tree):
+ @pytest.mark.treewalk
+ def test_MIMETreeDFWalker_list_to_mixed(self, const1):
mimetree = MIMETreeDFWalker()
-
items = []
- def visitor_fn(item, stack, debugprint):
+ def visitor_fn(item, ancestry, descendents, debugprint):
items.append(item)
- mimetree.walk([basic_mime_tree], visitor_fn=visitor_fn)
+ p = Part("text", "plain", const1)
+ mimetree.walk([p], visitor_fn=visitor_fn)
+ assert items[-1].subtype == "plain"
+ mimetree.walk([p, p], visitor_fn=visitor_fn)
assert items[-1].subtype == "mixed"
+ @pytest.mark.treewalk
def test_MIMETreeDFWalker_visitor_in_constructor(
- self, basic_mime_tree
+ self, mime_tree_related_to_alternative
):
items = []
- def visitor_fn(item, stack, debugprint):
+ def visitor_fn(item, ancestry, descendents, debugprint):
items.append(item)
mimetree = MIMETreeDFWalker(visitor_fn=visitor_fn)
- mimetree.walk(basic_mime_tree)
+ mimetree.walk(mime_tree_related_to_alternative)
assert len(items) == 5
- def test_do_setup_no_extensions(self, const1, capsys):
- "Assert basics about the setup command output"
- do_setup(temppath=const1, out_f=sys.stdout)
- captout = capsys.readouterr()
- lines = captout.out.splitlines()
- assert lines[2].endswith(f'{const1}"')
- assert lines[4].endswith(const1)
- assert "first-entry" in lines[-1]
- assert "edit-file" in lines[-1]
-
- def test_do_setup_extensions(self, const1, const2, capsys):
- "Assert that extensions are passed to editor"
- do_setup(
- temppath=const1, extensions=[const2, const1], out_f=sys.stdout
- )
- captout = capsys.readouterr()
- lines = captout.out.splitlines()
- # assert comma-separated list of extensions passed
- assert lines[2].endswith(f'{const2},{const1}"')
- assert lines[4].endswith(const1)
+ @pytest.fixture
+ def string_io(self, const1, text=None):
+ return StringIO(text or const1)
+
+ @pytest.mark.massage
+ def test_do_massage_basic(self):
+ def converter(draft_f, **kwargs):
+ return Part("text", "plain", draft_f.path, orig=True)
+
+ with File() as draft_f, File() as cmd_f:
+ do_massage(
+ draft_f=draft_f,
+ cmd_f=cmd_f,
+ converter=converter,
+ )
+ lines = cmd_f.read().splitlines()
+
+ assert "send-message" in lines.pop(0)
+ assert "update-encoding" in lines.pop(0)
+ assert "first-entry" in lines.pop(0)
+ assert "source 'rm -f " in lines.pop(0)
+ assert '="$my_editor"' in lines.pop(0)
+ assert '="$my_edit_headers"' in lines.pop(0)
+ assert "unset my_editor" == lines.pop(0)
+ assert "unset my_edit_headers" == lines.pop(0)
+ assert "unset my_mdwn_postprocess_cmd_file" == lines.pop(0)
+
+ @pytest.mark.massage
+ def test_do_massage_fulltree(self, mime_tree_related_to_alternative):
+ def converter(draft_f, **kwargs):
+ return mime_tree_related_to_alternative
+
+ max_attachments = 5
+
+ with File() as draft_f, File() as cmd_f:
+ do_massage(
+ draft_f=draft_f,
+ cmd_f=cmd_f,
+ max_other_attachments=max_attachments,
+ converter=converter,
+ )
+ lines = cmd_f.read().splitlines()[:-6]
+
+ assert "first-entry" in lines.pop()
+ assert "update-encoding" in lines.pop()
+ assert "Plain" in lines.pop()
+ assert "part.html" in lines.pop()
+ assert "toggle-unlink" in lines.pop()
+ for i in range(max_attachments):
+ assert "move-up" in lines.pop()
+ assert "move-down" in lines.pop()
+ assert "HTML" in lines.pop()
+ assert "jump>1" in lines.pop()
+ assert "jump>2" in lines.pop()
+ assert "group-alternatives" in lines.pop()
+ assert "Alternative" in lines.pop()
+ assert "logo.png" in lines.pop()
+ assert "toggle-unlink" in lines.pop()
+ assert "content-id" in lines.pop()
+ for i in range(max_attachments):
+ assert "move-up" in lines.pop()
+ assert "move-down" in lines.pop()
+ assert "Logo" in lines.pop()
+ assert "jump>1" in lines.pop()
+ assert "jump>4" in lines.pop()
+ assert "group-related" in lines.pop()
+ assert "Related" in lines.pop()
+ assert "send-message" in lines.pop()
+ assert len(lines) == 0
+
+ @pytest.mark.massage
+ def test_mime_tree_relative_within_alternative(
+ self, mime_tree_related_to_html
+ ):
+ def converter(draft_f, **kwargs):
+ return mime_tree_related_to_html
+
+ with File() as draft_f, File() as cmd_f:
+ do_massage(
+ draft_f=draft_f,
+ cmd_f=cmd_f,
+ converter=converter,
+ )
+ lines = cmd_f.read().splitlines()[:-6]
+
+ assert "first-entry" in lines.pop()
+ assert "update-encoding" in lines.pop()
+ assert "Plain" in lines.pop()
+ assert "part.html" in lines.pop()
+ assert "toggle-unlink" in lines.pop()
+ assert "move-up" in lines.pop()
+ while True:
+ top = lines.pop()
+ if "move-up" not in top:
+ break
+ assert "move-down" in top
+ assert "HTML" in lines.pop()
+ assert "logo.png" in lines.pop()
+ assert "toggle-unlink" in lines.pop()
+ assert "content-id" in lines.pop()
+ assert "move-up" in lines.pop()
+ while True:
+ top = lines.pop()
+ if "move-up" not in top:
+ break
+ assert "move-down" in top
+ assert "move-down" in lines.pop()
+ assert "Logo" in lines.pop()
+ assert "jump>2" in lines.pop()
+ assert "jump>3" in lines.pop()
+ assert "group-related" in lines.pop()
+ assert "Related" in lines.pop()
+ assert "jump>1" in lines.pop()
+ assert "jump>2" in lines.pop()
+ assert "group-alternative" in lines.pop()
+ assert "Alternative" in lines.pop()
+ assert "send-message" in lines.pop()
+ assert len(lines) == 0
+
+ @pytest.mark.massage
+ def test_mime_tree_nested_trees_does_not_break_positioning(
+ self, mime_tree_nested
+ ):
+ def converter(draft_f, **kwargs):
+ return mime_tree_nested
+
+ with File() as draft_f, File() as cmd_f:
+ do_massage(
+ draft_f=draft_f,
+ cmd_f=cmd_f,
+ converter=converter,
+ )
+ lines = cmd_f.read().splitlines()
+
+ while "logo.png" not in lines.pop():
+ pass
+ lines.pop()
+ assert "content-id" in lines.pop()
+ assert "move-up" in lines.pop()
+ while True:
+ top = lines.pop()
+ if "move-up" not in top:
+ break
+ assert "move-down" in top
+ # Due to the nested trees, the number of descendents of the sibling
+ # actually needs to be considered, not just the nieces. So to move
+ # from position 1 to position 6, it only needs one <move-down>
+ # because that jumps over the entire sibling tree. Thus what
+ # follows next must not be another <move-down>
+ assert "Logo" in lines.pop()
+
+ @pytest.mark.converter
+ def test_converter_tree_basic(self, fakepath, const1, fakefilefactory):
+ with fakefilefactory(fakepath, content=const1) as draft_f:
+ tree = convert_markdown_to_html(
+ draft_f, filefactory=fakefilefactory
+ )
+
+ assert tree.subtype == "alternative"
+ assert len(tree.children) == 2
+ assert tree.children[0].subtype == "plain"
+ assert tree.children[0].path == draft_f.path
+ assert tree.children[0].orig
+ assert tree.children[1].subtype == "html"
+ assert tree.children[1].path == fakepath.with_suffix(".html")
+
+ @pytest.mark.converter
+ def test_converter_writes(
+ self, fakepath, fakefilefactory, const1, monkeypatch
+ ):
+ with fakefilefactory(fakepath, content=const1) as draft_f:
+ convert_markdown_to_html(draft_f, filefactory=fakefilefactory)
+
+ html = fakefilefactory.pop()
+ assert fakepath.with_suffix(".html") == html[0]
+ assert const1 in html[1].read()
+ text = fakefilefactory.pop()
+ assert fakepath == text[0]
+ assert const1 == text[1].read()
+
+ @pytest.mark.imgproc
+ def test_markdown_inline_image_processor(self):
+ imgpath1 = "file:/path/to/image.png"
+ imgpath2 = "file:///path/to/image.png?url=params"
+ imgpath3 = "/path/to/image.png"
+ text = f"""
+ 
+ """
+ text, html, images, mdwn = markdown_with_inline_image_support(text)
+
+ # local paths have been normalised to URLs:
+ imgpath3 = f"file://{imgpath3}"
+
+ assert 'src="cid:' in html
+ assert "](cid:" in text
+ assert len(images) == 3
+ assert imgpath1 in images
+ assert imgpath2 in images
+ assert imgpath3 in images
+ assert images[imgpath1].cid != images[imgpath2].cid
+ assert images[imgpath1].cid != images[imgpath3].cid
+ assert images[imgpath2].cid != images[imgpath3].cid
+
+ @pytest.mark.imgproc
+ def test_markdown_inline_image_processor_title_to_desc(self, const1):
+ imgpath = "file:///path/to/image.png"
+ text = f''
+ text, html, images, mdwn = markdown_with_inline_image_support(text)
+ assert images[imgpath].desc == const1
+
+ @pytest.mark.imgproc
+ def test_markdown_inline_image_processor_alt_to_desc(self, const1):
+ imgpath = "file:///path/to/image.png"
+ text = f""
+ text, html, images, mdwn = markdown_with_inline_image_support(text)
+ assert images[imgpath].desc == const1
+
+ @pytest.mark.imgproc
+ def test_markdown_inline_image_processor_title_over_alt_desc(
+ self, const1, const2
+ ):
+ imgpath = "file:///path/to/image.png"
+ text = f''
+ text, html, images, mdwn = markdown_with_inline_image_support(text)
+ assert images[imgpath].desc == const2
+
+ @pytest.mark.imgproc
+ def test_markdown_inline_image_not_external(self):
+ imgpath = "https://path/to/image.png"
+ text = f""
+ text, html, images, mdwn = markdown_with_inline_image_support(text)
+
+ assert 'src="cid:' not in html
+ assert "](cid:" not in text
+ assert len(images) == 0
+
+ @pytest.mark.imgproc
+ def test_markdown_inline_image_local_file(self):
+ imgpath = "/path/to/image.png"
+ text = f""
+ text, html, images, mdwn = markdown_with_inline_image_support(text)
+
+ for k, v in images.items():
+ assert k == f"file://{imgpath}"
+ break
+
+ @pytest.mark.imgproc
+ def test_markdown_inline_image_expanduser(self):
+ imgpath = pathlib.Path("~/image.png")
+ text = f""
+ text, html, images, mdwn = markdown_with_inline_image_support(text)
+
+ for k, v in images.items():
+ assert k == f"file://{imgpath.expanduser()}"
+ break
+
+ @pytest.fixture
+ def test_png(self):
+ return (
+ "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAE"
+ "AAAABCAAAAAA6fptVAAAACklEQVQI12P4DwABAQEAG7buVgAA"
+ )
+
+ @pytest.mark.imgproc
+ def test_markdown_inline_image_processor_base64(self, test_png):
+ text = f""
+ text, html, images, mdwn = markdown_with_inline_image_support(text)
+
+ assert 'src="cid:' in html
+ assert "](cid:" in text
+ assert len(images) == 1
+ assert test_png in images
+
+ @pytest.mark.converter
+ def test_converter_tree_inline_image_base64(
+ self, test_png, fakefilefactory
+ ):
+ text = f""
+ with fakefilefactory(content=text) as draft_f:
+ tree = convert_markdown_to_html(
+ draft_f,
+ filefactory=fakefilefactory,
+ related_to_html_only=False,
+ )
+ assert tree.subtype == "relative"
+ assert tree.children[0].subtype == "alternative"
+ assert tree.children[1].subtype == "png"
+ written = fakefilefactory.pop()
+ assert tree.children[1].path == written[0]
+ assert b"PNG" in written[1].read()
+
+ @pytest.mark.converter
+ def test_converter_tree_inline_image_base64_related_to_html(
+ self, test_png, fakefilefactory
+ ):
+ text = f""
+ with fakefilefactory(content=text) as draft_f:
+ tree = convert_markdown_to_html(
+ draft_f,
+ filefactory=fakefilefactory,
+ related_to_html_only=True,
+ )
+ assert tree.subtype == "alternative"
+ assert tree.children[1].subtype == "relative"
+ assert tree.children[1].children[1].subtype == "png"
+ written = fakefilefactory.pop()
+ assert tree.children[1].children[1].path == written[0]
+ assert b"PNG" in written[1].read()
+
+ @pytest.mark.converter
+ def test_converter_tree_inline_image_cid(
+ self, const1, fakefilefactory
+ ):
+ text = f""
+ with fakefilefactory(content=text) as draft_f:
+ tree = convert_markdown_to_html(
+ draft_f,
+ filefactory=fakefilefactory,
+ related_to_html_only=False,
+ )
+ assert len(tree.children) == 2
+ assert tree.children[0].cid != const1
+ assert tree.children[0].type != "image"
+ assert tree.children[1].cid != const1
+ assert tree.children[1].type != "image"
+
+ @pytest.fixture
+ def fakefilefactory(self):
+ return FakeFileFactory()
+
+ @pytest.mark.imgcoll
+ def test_inline_image_collection(
+ self, test_png, const1, const2, fakefilefactory
+ ):
+ test_images = {test_png: InlineImageInfo(cid=const1, desc=const2)}
+ relparts = collect_inline_images(
+ test_images, filefactory=fakefilefactory
+ )
+
+ written = fakefilefactory.pop()
+ assert b"PNG" in written[1].read()
+
+ assert relparts[0].subtype == "png"
+ assert relparts[0].path == written[0]
+ assert relparts[0].cid == const1
+ assert const2 in relparts[0].desc
+
+ if _PYNLINER:
+
+ @pytest.mark.styling
+ def test_apply_stylesheet(self):
+ html = "<p>Hello, world!</p>"
+ css = "p { color:red }"
+ out = apply_styling(html, css)
+ assert 'p style="color' in out
+
+ @pytest.mark.styling
+ def test_apply_no_stylesheet(self, const1):
+ out = apply_styling(const1, None)
+
+ @pytest.mark.massage
+ @pytest.mark.styling
+ def test_massage_styling_to_converter(self):
+ css = "p { color:red }"
+ css_applied = []
+
+ def converter(draft_f, css_f, **kwargs):
+ css = css_f.read()
+ css_applied.append(css)
+ return Part("text", "plain", draft_f.path, orig=True)
+
+ with (
+ File() as draft_f,
+ File(mode="w") as cmd_f,
+ File(content=css) as css_f
+ ):
+ do_massage(
+ draft_f=draft_f,
+ cmd_f=cmd_f,
+ css_f=css_f,
+ converter=converter,
+ )
+ assert css_applied[0] == css
+
+ @pytest.mark.converter
+ @pytest.mark.styling
+ def test_converter_apply_styles(
+ self, const1, monkeypatch, fakepath, fakefilefactory
+ ):
+ css = "p { color:red }"
+ with (
+ monkeypatch.context() as m,
+ fakefilefactory(fakepath, content=const1) as draft_f,
+ fakefilefactory(content=css) as css_f,
+ ):
+ m.setattr(
+ markdown.Markdown,
+ "convert",
+ lambda s, t: f"<p>{t}</p>",
+ )
+ convert_markdown_to_html(
+ draft_f, css_f=css_f, filefactory=fakefilefactory
+ )
+ assert re.search(
+ r"color:.*red",
+ fakefilefactory[fakepath.with_suffix(".html")].read(),
+ )
+
+ if _PYGMENTS_CSS:
+
+ @pytest.mark.styling
+ def test_apply_stylesheet_pygments(self):
+ html = (
+ f'<div class="{_CODEHILITE_CLASS}">'
+ "<pre>def foo():\n return</pre></div>"
+ )
+ out = apply_styling(html, _PYGMENTS_CSS)
+ assert f'{_CODEHILITE_CLASS}" style="' in out
+
+ @pytest.mark.sig
+ def test_signature_extraction_no_signature(self, const1):
+ assert (const1, None, None) == extract_signature(const1)
+
+ @pytest.mark.sig
+ def test_signature_extraction_just_text(self, const1, const2):
+ origtext, textsig, htmlsig = extract_signature(
+ f"{const1}{EMAIL_SIG_SEP}{const2}"
+ )
+ assert origtext == const1
+ assert textsig == const2
+ assert htmlsig is None
+
+ @pytest.mark.sig
+ def test_signature_extraction_html(
+ self, fakepath, fakefilefactory, const1, const2
+ ):
+ sigconst = "HTML signature from {path} but as a string"
+ sig = f'<div id="signature">{sigconst.format(path=fakepath)}</div>'
+
+ sig_f = fakefilefactory(fakepath, content=sig)
+
+ origtext, textsig, htmlsig = extract_signature(
+ f"{const1}{EMAIL_SIG_SEP}{HTML_SIG_MARKER} {fakepath}\n{const2}",
+ filefactory=fakefilefactory,
+ )
+ assert origtext == const1
+ assert textsig == const2
+ assert htmlsig == sigconst.format(path=fakepath)
+
+ @pytest.mark.sig
+ def test_signature_extraction_file_not_found(self, fakepath, const1):
+ with pytest.raises(FileNotFoundError):
+ origtext, textsig, htmlsig = extract_signature(
+ f"{const1}{EMAIL_SIG_SEP}{HTML_SIG_MARKER}{fakepath}\n{const1}"
+ )
+
+ @pytest.mark.imgproc
+ def test_image_registry(self, const1):
+ reg = ImageRegistry()
+ cid = reg.register(const1)
+ assert "@" in cid
+ assert not cid.startswith("<")
+ assert not cid.endswith(">")
+ assert const1 in reg
+
+ @pytest.mark.imgproc
+ def test_image_registry_file_uri(self, const1):
+ reg = ImageRegistry()
+ reg.register("/some/path")
+ for path in reg:
+ assert path.startswith("file://")
+ break
+
+ @pytest.mark.converter
+ @pytest.mark.sig
+ def test_converter_signature_handling(
+ self, fakepath, fakefilefactory, monkeypatch
+ ):
+ mailparts = (
+ "This is the mail body\n",
+ f"{EMAIL_SIG_SEP}",
+ "This is a plain-text signature only",
+ )
+
+ with (
+ fakefilefactory(
+ fakepath, content="".join(mailparts)
+ ) as draft_f,
+ monkeypatch.context() as m,
+ ):
+ m.setattr(markdown.Markdown, "convert", lambda s, t: t)
+ convert_markdown_to_html(draft_f, filefactory=fakefilefactory)
+
+ soup = bs4.BeautifulSoup(
+ fakefilefactory[fakepath.with_suffix(".html")].read(),
+ "html.parser",
+ )
+ body = soup.body.contents
+
+ assert mailparts[0] in body.pop(0)
+
+ sig = soup.select_one("#signature")
+ assert sig == body.pop(0)
+
+ sep = sig.select_one("span.sig_separator")
+ assert sep == sig.contents[0]
+ assert f"\n{sep.text}\n" == EMAIL_SIG_SEP
+
+ assert mailparts[2] in sig.contents[1]
+
+ @pytest.mark.converter
+ @pytest.mark.sig
+ def test_converter_signature_handling_htmlsig(
+ self, fakepath, fakepath2, fakefilefactory, monkeypatch
+ ):
+ mailparts = (
+ "This is the mail body",
+ f"{EMAIL_SIG_SEP}",
+ f"{HTML_SIG_MARKER}{fakepath2}\n",
+ "This is the plain-text version",
+ )
+ htmlsig = "HTML Signature from {path} but as a string"
+ html = (
+ f'<div id="signature"><p>{htmlsig.format(path=fakepath2)}</p></div>'
+ )
+
+ sig_f = fakefilefactory(fakepath2, content=html)
+
+ def mdwn_fn(t):
+ return t.upper()
+
+ with (
+ fakefilefactory(
+ fakepath, content="".join(mailparts)
+ ) as draft_f,
+ monkeypatch.context() as m,
+ ):
+ m.setattr(
+ markdown.Markdown, "convert", lambda s, t: mdwn_fn(t)
+ )
+ convert_markdown_to_html(draft_f, filefactory=fakefilefactory)
+
+ soup = bs4.BeautifulSoup(
+ fakefilefactory[fakepath.with_suffix(".html")].read(),
+ "html.parser",
+ )
+ sig = soup.select_one("#signature")
+ sig.span.extract()
+
+ assert HTML_SIG_MARKER not in sig.text
+ assert htmlsig.format(path=fakepath2) == sig.text.strip()
+
+ plaintext = fakefilefactory[fakepath].read()
+ assert plaintext.endswith(EMAIL_SIG_SEP + mailparts[-1])
+
+ @pytest.mark.converter
+ @pytest.mark.sig
+ def test_converter_signature_handling_htmlsig_with_image(
+ self, fakepath, fakepath2, fakefilefactory, monkeypatch, test_png
+ ):
+ mailparts = (
+ "This is the mail body",
+ f"{EMAIL_SIG_SEP}",
+ f"{HTML_SIG_MARKER}{fakepath2}\n",
+ "This is the plain-text version",
+ )
+ htmlsig = (
+ "HTML Signature from {path} with image\n"
+ f'<img src="{test_png}">\n'
+ )
+ html = (
+ f'<div id="signature">{htmlsig.format(path=fakepath2)}</div>'
+ )
+
+ sig_f = fakefilefactory(fakepath2, content=html)
+
+ def mdwn_fn(t):
+ return t.upper()
+
+ with (
+ fakefilefactory(
+ fakepath, content="".join(mailparts)
+ ) as draft_f,
+ monkeypatch.context() as m,
+ ):
+ m.setattr(
+ markdown.Markdown, "convert", lambda s, t: mdwn_fn(t)
+ )
+ convert_markdown_to_html(draft_f, filefactory=fakefilefactory)
+
+ assert fakefilefactory.pop()[0].suffix == ".png"
+
+ soup = bs4.BeautifulSoup(
+ fakefilefactory[fakepath.with_suffix(".html")].read(),
+ "html.parser",
+ )
+ assert soup.img.attrs["src"].startswith("cid:")
+
+ @pytest.mark.converter
+ @pytest.mark.sig
+ def test_converter_signature_handling_textsig_with_image(
+ self, fakepath, fakefilefactory, test_png
+ ):
+ mailparts = (
+ "This is the mail body",
+ f"{EMAIL_SIG_SEP}",
+ "This is the plain-text version with image\n",
+ f"",
+ )
+ with (
+ fakefilefactory(
+ fakepath, content="".join(mailparts)
+ ) as draft_f,
+ ):
+ tree = convert_markdown_to_html(
+ draft_f, filefactory=fakefilefactory
+ )
+
+ assert tree.subtype == "relative"
+ assert tree.children[0].subtype == "alternative"
+ assert tree.children[1].subtype == "png"
+ written = fakefilefactory.pop()
+ assert tree.children[1].path == written[0]
+ assert written[1].read() == request.urlopen(test_png).read()
+
+ @pytest.mark.converter
+ def test_converter_attribution_to_admonition(
+ self, fakepath, fakefilefactory
+ ):
+ mailparts = (
+ "Regarding whatever",
+ "> blockquote line1",
+ "> blockquote line2",
+ "> ",
+ "> new para with **bold** text",
+ )
+ with fakefilefactory(
+ fakepath, content="\n".join(mailparts)
+ ) as draft_f:
+ convert_markdown_to_html(draft_f, filefactory=fakefilefactory)
+
+ soup = bs4.BeautifulSoup(
+ fakefilefactory[fakepath.with_suffix(".html")].read(),
+ "html.parser",
+ )
+ quote = soup.select_one("div.admonition.quote")
+ assert quote
+ assert (
+ soup.select_one("p.admonition-title").extract().text.strip()
+ == mailparts[0]
+ )
+
+ p = quote.p.extract()
+ assert p.text.strip() == "\n".join(p[2:] for p in mailparts[1:3])
+
+ p = quote.p.extract()
+ assert p.contents[1].name == "strong"
+
+ @pytest.mark.converter
+ def test_converter_attribution_to_admonition_with_blockquote(
+ self, fakepath, fakefilefactory
+ ):
+ mailparts = (
+ "Regarding whatever",
+ "> blockquote line1",
+ "> blockquote line2",
+ "> ",
+ "> new para with **bold** text",
+ )
+ with fakefilefactory(
+ fakepath, content="\n".join(mailparts)
+ ) as draft_f:
+ convert_markdown_to_html(draft_f, filefactory=fakefilefactory)
+
+ soup = bs4.BeautifulSoup(
+ fakefilefactory[fakepath.with_suffix(".html")].read(),
+ "html.parser",
+ )
+ quote = soup.select_one("div.admonition.quote")
+ assert quote.blockquote
+
+ @pytest.mark.converter
+ def test_converter_attribution_to_admonition_multiple(
+ self, fakepath, fakefilefactory
+ ):
+ mailparts = (
+ "Regarding whatever",
+ "> blockquote line1",
+ "> blockquote line2",
+ "",
+ "Normal text",
+ "",
+ "> continued emailquote",
+ "",
+ "Another email-quote",
+ "> something",
+ )
+ with fakefilefactory(
+ fakepath, content="\n".join(mailparts)
+ ) as draft_f:
+ convert_markdown_to_html(draft_f, filefactory=fakefilefactory)
+
+ soup = bs4.BeautifulSoup(
+ fakefilefactory[fakepath.with_suffix(".html")].read(),
+ "html.parser",
+ )
+ quote = soup.select_one("div.admonition.quote.continued").extract()
+ assert quote
+ assert (
+ quote.select_one("p.admonition-title").extract().text.strip()
+ == mailparts[0]
+ )
+
+ p = quote.p.extract()
+ assert p
+
+ quote = soup.select_one("div.admonition.quote.continued").extract()
+ assert quote
+ assert (
+ quote.select_one("p.admonition-title").extract().text.strip()
+ == mailparts[-2]
+ )
+
+ @pytest.mark.fileio
+ def test_file_class_contextmanager(self, const1, monkeypatch):
+ state = dict(o=False, c=False)
+
+ def fn(t):
+ state[t] = True
+
+ with monkeypatch.context() as m:
+ m.setattr(File, "open", lambda s: fn("o"))
+ m.setattr(File, "close", lambda s: fn("c"))
+ with File() as f:
+ assert state["o"]
+ assert not state["c"]
+ assert state["c"]
+
+ @pytest.mark.fileio
+ def test_file_class_no_path(self, const1):
+ with File(mode="w+") as f:
+ f.write(const1, cache=False)
+ assert f.read(cache=False) == const1
+
+ @pytest.mark.fileio
+ def test_file_class_path(self, const1, tmp_path):
+ with File(tmp_path / "file", mode="w+") as f:
+ f.write(const1, cache=False)
+ assert f.read(cache=False) == const1
+
+ @pytest.mark.fileio
+ def test_file_class_path_no_exists(self, fakepath):
+ with pytest.raises(FileNotFoundError):
+ File(fakepath, mode="r").open()
+
+ @pytest.mark.fileio
+ def test_file_class_cache(self, tmp_path, const1, const2):
+ path = tmp_path / "file"
+ file = File(path, mode="w+")
+ with file as f:
+ f.write(const1, cache=True)
+ with open(path, mode="w") as f:
+ f.write(const2)
+ with file as f:
+ assert f.read(cache=True) == const1
+
+ @pytest.mark.fileio
+ def test_file_class_cache_init(self, const1):
+ file = File(path=None, mode="r", content=const1)
+ with file as f:
+ assert f.read() == const1
+
+ @pytest.mark.fileio
+ def test_file_class_content_or_path(self, fakepath, const1):
+ with pytest.raises(RuntimeError):
+ file = File(path=fakepath, content=const1)
+
+ @pytest.mark.fileio
+ def test_file_class_content_needs_read(self, const1):
+ with pytest.raises(RuntimeError):
+ file = File(mode="w", content=const1)
+
+ @pytest.mark.fileio
+ def test_file_class_write_persists_close(self, const1):
+ f = File(mode="w+")
+ with f:
+ f.write(const1)
+ with f:
+ assert f.read() == const1
+
+ @pytest.mark.fileio
+ def test_file_class_write_resets_read_cache(self, const1, const2):
+ with File(mode="w+", content=const1) as f:
+ assert f.read() == const1
+ f.write(const2)
+ assert f.read() == const2
+
+ @pytest.mark.fileio
+ def test_file_factory(self):
+ fact = FileFactory()
+ f = fact()
+ assert isinstance(f, File)
+ assert len(fact) == 1
+ assert f in fact
+ assert f == fact[0]
+
+ @pytest.mark.fileio
+ def test_fake_file_factory(self, fakepath, fakefilefactory):
+ fact = FakeFileFactory()
+ f = fakefilefactory(fakepath)
+ assert f.path == fakepath
+ assert f == fakefilefactory[fakepath]
+
+ @pytest.mark.fileio
+ def test_fake_file_factory_path_persistence(
+ self, fakepath, fakefilefactory
+ ):
+ f1 = fakefilefactory(fakepath)
+ assert f1 == fakefilefactory(fakepath)
except ImportError:
pass
projects / etc / neomutt.git / blobdiff