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* mmime: print_header: encode quoted-strings at onceLeah Neukirchen2021-06-181-3/+29
| | | | | | | | | | | | | | This is maybe a foul compromise between correctness and complexity of implementation, but it should do the right thing in most cases, and does not require fully parsing and reconstructing all headers that can contain phrases. An 'encoded-word' MUST NOT appear within a 'quoted-string'. We thus completely encode the quoted-string (if necessary) as a single encoded-word, and strip off the quotes. This should fix encoding of addresses that have both non-ASCII and special chars such as , and ;.
* mmime: be more careful when qp-encoding in headersLeah Neukirchen2021-06-181-0/+9
| | | | | | | | Characters such as , or ; mustn't appear in qp-encoded strings, as they have a meaning in phrases. To be safe, encode all special characters except for the safe ones in RFC 2047 5.(3). _ is dealt with already.
* mmime: do not duplicate Content* headersLeah Neukirchen2021-05-091-7/+21
| | | | | | | | | Do not add additional Content-Type and Content-Transfer-Encoding headers when using mmime on input already containing them. Do not reencode the message if Content-Transfer-Encoding is set. Based on a patch by Felix Van der Jeugt and duncaen.
* mmime: allow # in include lines, used to override the content-dispositionLeah Neukirchen2020-12-221-1/+1
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* mmime: propagate errors when attaching a file failsLeah Neukirchen2020-11-081-2/+4
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* pledge(2) all programsTim Kuijsten2020-09-061-0/+3
| | | | | | | | | | | | | | | | All programs except mshow have a very tight set of promises. mshow has a broad set of promises and might be a good future candidate to further restrict using unveil(2). This patch is based on commit 0300a112 by Alex Holst (dated 2017-12-07), which was proposed in GH PR #79. * pledged mpick, mflow and mdate so that now all programs are pledged * removed some unneeded promises and added some missing promises * move err.h include and OpenBSD ifdef into a new xpledge.h * cleaned up code aligning and whitespace Closes: #179 [via git-merge-pr]
* mmime: allow ; and =, for ";charset="Leah Neukirchen2020-08-221-1/+2
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* mmime: be more strict when detecting content types for the include syntaxLeah Neukirchen2020-08-051-1/+18
| | | | Previously, shebangs would be (mis)detected: #!/bin/sh -e
* mmime: gen_file: remove check for trailing newline for 7bit transferLeah Neukirchen2019-04-231-1/+1
| | | | | | | | | | | RFC2046 5.1.1 specifies that parts without trailing newlines are coded without problems: > NOTE: The CRLF preceding the boundary delimiter line is conceptually > attached to the boundary so that it is possible to have a part that > does not end with a CRLF (line break). This if-statement now also codes empty files correctly.
* mmime: print_header: fix for empty linesLeah Neukirchen2019-02-281-0/+3
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* mmime: print_header: use signed variable for linelenLeah Neukirchen2019-02-031-1/+1
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* use appropriate integer typesLeah Neukirchen2017-10-061-3/+4
| | | | Mainly found with clang -Wconversion -Wshorten-64-to-32.
* mmime: gen_qp: quote ^From and ^.$ to be safeLeah Neukirchen2017-09-211-1/+5
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* mmime: gen_qp: encode trailing space and tab as =20/=09Leah Neukirchen2017-09-191-1/+12
| | | | | | | | See RFC2045 6.7.(3): > It follows that an octet with decimal value 9 or 32 appearing at the > end of an encoded line must be represented according to Rule #1. Prefer this over generating a soft-line break and then a real line break.
* styleLeah Neukirchen2017-08-311-8/+8
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* mmime: ensure 7bit or 8bit Content-Transfer-Encoding for message/rfc822 partsLeah Neukirchen2017-07-091-3/+8
| | | | | | | | RFC 2046, Section 5.2.1: > No encoding other than "7bit", "8bit", or "binary" is permitted for > the body of a "message/rfc822" entity. (We'll generate 8bit when we have to and put the blame on the MTA.)
* mmime: disregard line length restriction for message/rfc822 attachmentsLeah Neukirchen2017-07-091-0/+3
| | | | Many webmail client's don't like qp-encoded message/rfc822 attachments.
* mmime: gen_qp: ensure not to split utf8 multibyte sequences into encoded wordsLeah Neukirchen2017-06-291-11/+20
| | | | | | | RFC2047, 5.(3): > Each 'encoded-word' MUST represent an integral number of characters. > A multi-octet character may not be split across adjacent 'encoded- > word's.
* mmime: don't generate empty filenamesLeah Neukirchen2017-06-191-0/+5
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* mmime: allow setting content-disposition and overriding filenameLeah Neukirchen2017-06-191-4/+18
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* mmime: gen_attachment: try to generate filenames as atoms, use qp for double ↵Leah Neukirchen2017-06-121-5/+10
| | | | quotes
* mmime: add mblaze/raw for plain text inclusionLeah Neukirchen2017-05-261-0/+4
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* mmime: add -t to override toplevel content-typeLeah Neukirchen2017-05-261-3/+6
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* mmime: print_header: only force qp-encoding for overlong linesLeah Neukirchen2017-04-301-1/+1
| | | | | | Lines SHOULD not be longer than 78 chars, and we try to fold like that, but we only enforce qp-encoding for 7-bit safe lines if they would be longer than 998, which they MUST not be.
* mmime: check: allow up to 998 chars in header linesLeah Neukirchen2017-04-301-4/+24
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* mmime: use RFC2231 for Content-Disposition when neededLeah Neukirchen2017-04-061-3/+41
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* mmime: gen_file: append newline to error messageLeah Neukirchen2017-03-301-1/+1
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* mmime: print_header: refactorLeah Neukirchen2017-03-281-42/+39
| | | | | | | | Simplifies the code considerably. QP-header-wrapping now happens inside gen_qp. We wrap the line in advance when this will save QP-encoding, or splitting a QP-word into two. Fixes #20.
* clean up whitespaceLeah Neukirchen2017-01-261-2/+2
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* mmime: don't truncate a #type line when it has invalid syntaxChristian Neukirchen2016-11-081-0/+2
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* mmime: ensure a new token in qp header generationChristian Neukirchen2016-11-081-2/+2
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* mman: gen_file: slurp the file instead of mmapChristian Neukirchen2016-10-051-18/+14
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* mmime: gen_build: don't crash on #-line without spaceChristian Neukirchen2016-10-051-8/+10
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* use getdelim instead of getlineChristian Neukirchen2016-09-051-1/+1
| | | | Avoids weird macros to build on FreeBSD.
* mmime: generate LF before MIME boundariesChristian Neukirchen2016-08-061-4/+4
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* mmime: line length must be <=78Christian Neukirchen2016-08-021-2/+2
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* mmime: add -c to check if MIME-encoding is neededChristian Neukirchen2016-08-021-3/+40
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* mmime: add -r for plain textChristian Neukirchen2016-08-021-9/+30
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* mmime: simplifyChristian Neukirchen2016-08-021-26/+0
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* mmime: fix prevq logicChristian Neukirchen2016-08-011-1/+2
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* mmime: only qp after newline when actually neededChristian Neukirchen2016-08-011-6/+12
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* mmime: delete dead storeChristian Neukirchen2016-07-261-1/+0
| | | | Found by clang-analyzer.
* mmime: encode headers when neccessaryChristian Neukirchen2016-07-251-9/+98
| | | | This is still a bit clumsy, but I'm not sure how to make it better.
* add mmimeChristian Neukirchen2016-07-201-0/+261
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