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author | Matt A. Tobin <email@mattatobin.com> | 2019-11-03 00:17:46 -0400 |
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committer | Matt A. Tobin <email@mattatobin.com> | 2019-11-03 00:17:46 -0400 |
commit | 302bf1b523012e11b60425d6eee1221ebc2724eb (patch) | |
tree | b191a895f8716efcbe42f454f37597a545a6f421 /mailnews/mime/src/mimeleaf.cpp | |
parent | 21b3f6247403c06f85e1f45d219f87549862198f (diff) | |
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Issue #1258 - Part 1: Import mailnews, ldap, and mork from comm-esr52.9.1
Diffstat (limited to 'mailnews/mime/src/mimeleaf.cpp')
-rw-r--r-- | mailnews/mime/src/mimeleaf.cpp | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/mailnews/mime/src/mimeleaf.cpp b/mailnews/mime/src/mimeleaf.cpp new file mode 100644 index 000000000..5d35ead37 --- /dev/null +++ b/mailnews/mime/src/mimeleaf.cpp @@ -0,0 +1,221 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "modmimee.h" +#include "mimeleaf.h" +#include "nsMimeTypes.h" +#include "prmem.h" +#include "plstr.h" +#include "prlog.h" +#include "nsMimeStringResources.h" + +#define MIME_SUPERCLASS mimeObjectClass +MimeDefClass(MimeLeaf, MimeLeafClass, mimeLeafClass, &MIME_SUPERCLASS); + +static int MimeLeaf_initialize (MimeObject *); +static void MimeLeaf_finalize (MimeObject *); +static int MimeLeaf_parse_begin (MimeObject *); +static int MimeLeaf_parse_buffer (const char *, int32_t, MimeObject *); +static int MimeLeaf_parse_line (const char *, int32_t, MimeObject *); +static int MimeLeaf_close_decoder (MimeObject *); +static int MimeLeaf_parse_eof (MimeObject *, bool); +static bool MimeLeaf_displayable_inline_p (MimeObjectClass *clazz, + MimeHeaders *hdrs); + +static int +MimeLeafClassInitialize(MimeLeafClass *clazz) +{ + MimeObjectClass *oclass = (MimeObjectClass *) clazz; + NS_ASSERTION(!oclass->class_initialized, "1.1 <rhp@netscape.com> 19 Mar 1999 12:00"); + oclass->initialize = MimeLeaf_initialize; + oclass->finalize = MimeLeaf_finalize; + oclass->parse_begin = MimeLeaf_parse_begin; + oclass->parse_buffer = MimeLeaf_parse_buffer; + oclass->parse_line = MimeLeaf_parse_line; + oclass->parse_eof = MimeLeaf_parse_eof; + oclass->displayable_inline_p = MimeLeaf_displayable_inline_p; + clazz->close_decoder = MimeLeaf_close_decoder; + + /* Default `parse_buffer' method is one which line-buffers the now-decoded + data and passes it on to `parse_line'. (We snarf the implementation of + this method from our superclass's implementation of `parse_buffer', which + inherited it from MimeObject.) + */ + clazz->parse_decoded_buffer = + ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_buffer; + + return 0; +} + + +static int +MimeLeaf_initialize (MimeObject *obj) +{ + /* This is an abstract class; it shouldn't be directly instantiated. */ + NS_ASSERTION(obj->clazz != (MimeObjectClass *) &mimeLeafClass, "1.1 <rhp@netscape.com> 19 Mar 1999 12:00"); + + // Initial size is -1 (meaning "unknown size") - we'll correct it in + // parse_buffer. + MimeLeaf *leaf = (MimeLeaf *) obj; + leaf->sizeSoFar = -1; + + return ((MimeObjectClass*)&MIME_SUPERCLASS)->initialize(obj); +} + + +static void +MimeLeaf_finalize (MimeObject *object) +{ + MimeLeaf *leaf = (MimeLeaf *)object; + object->clazz->parse_eof (object, false); + + /* Free the decoder data, if it's still around. It was probably freed + in MimeLeaf_parse_eof(), but just in case... */ + if (leaf->decoder_data) + { + MimeDecoderDestroy(leaf->decoder_data, true); + leaf->decoder_data = 0; + } + + ((MimeObjectClass*)&MIME_SUPERCLASS)->finalize (object); +} + + +static int +MimeLeaf_parse_begin (MimeObject *obj) +{ + MimeLeaf *leaf = (MimeLeaf *) obj; + MimeDecoderData *(*fn) (MimeConverterOutputCallback, void*) = 0; + + /* Initialize a decoder if necessary. + */ + if (!obj->encoding || + // If we need the object as "raw" for saving or forwarding, + // don't decode text parts of message types. Other output formats, + // like "display" (nsMimeMessageBodyDisplay), need decoding. + (obj->options->format_out == nsMimeOutput::nsMimeMessageRaw && + obj->parent && + (!PL_strcasecmp(obj->parent->content_type, MESSAGE_NEWS) || + !PL_strcasecmp(obj->parent->content_type, MESSAGE_RFC822)) && + !PL_strncasecmp(obj->content_type, "text/", 5))) + /* no-op */ ; + else if (!PL_strcasecmp(obj->encoding, ENCODING_BASE64)) + fn = &MimeB64DecoderInit; + else if (!PL_strcasecmp(obj->encoding, ENCODING_QUOTED_PRINTABLE)) + leaf->decoder_data = + MimeQPDecoderInit(((MimeConverterOutputCallback) + ((MimeLeafClass *)obj->clazz)->parse_decoded_buffer), + obj, obj); + else if (!PL_strcasecmp(obj->encoding, ENCODING_UUENCODE) || + !PL_strcasecmp(obj->encoding, ENCODING_UUENCODE2) || + !PL_strcasecmp(obj->encoding, ENCODING_UUENCODE3) || + !PL_strcasecmp(obj->encoding, ENCODING_UUENCODE4)) + fn = &MimeUUDecoderInit; + else if (!PL_strcasecmp(obj->encoding, ENCODING_YENCODE)) + fn = &MimeYDecoderInit; + + if (fn) + { + leaf->decoder_data = + fn (/* The MimeConverterOutputCallback cast is to turn the `void' argument + into `MimeObject'. */ + ((MimeConverterOutputCallback) + ((MimeLeafClass *)obj->clazz)->parse_decoded_buffer), + obj); + + if (!leaf->decoder_data) + return MIME_OUT_OF_MEMORY; + } + + return ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_begin(obj); +} + + +static int +MimeLeaf_parse_buffer (const char *buffer, int32_t size, MimeObject *obj) +{ + MimeLeaf *leaf = (MimeLeaf *) obj; + + NS_ASSERTION(!obj->closed_p, "1.1 <rhp@netscape.com> 19 Mar 1999 12:00"); + if (obj->closed_p) return -1; + + /* If we're not supposed to write this object, bug out now. + */ + if (!obj->output_p || + !obj->options || + !obj->options->output_fn) + return 0; + + int rv; + if (leaf->sizeSoFar == -1) + leaf->sizeSoFar = 0; + + if (leaf->decoder_data && + obj->options && + obj->options->format_out != nsMimeOutput::nsMimeMessageDecrypt + && obj->options->format_out != nsMimeOutput::nsMimeMessageAttach) { + int outSize = 0; + rv = MimeDecoderWrite (leaf->decoder_data, buffer, size, &outSize); + leaf->sizeSoFar += outSize; + } + else { + rv = ((MimeLeafClass *)obj->clazz)->parse_decoded_buffer (buffer, size, + obj); + leaf->sizeSoFar += size; + } + return rv; +} + +static int +MimeLeaf_parse_line (const char *line, int32_t length, MimeObject *obj) +{ + NS_ERROR("MimeLeaf_parse_line shouldn't ever be called."); + return -1; +} + + +static int +MimeLeaf_close_decoder (MimeObject *obj) +{ + MimeLeaf *leaf = (MimeLeaf *) obj; + + if (leaf->decoder_data) + { + int status = MimeDecoderDestroy(leaf->decoder_data, false); + leaf->decoder_data = 0; + return status; + } + + return 0; +} + + +static int +MimeLeaf_parse_eof (MimeObject *obj, bool abort_p) +{ + MimeLeaf *leaf = (MimeLeaf *) obj; + if (obj->closed_p) return 0; + + /* Close off the decoder, to cause it to give up any buffered data that + it is still holding. + */ + if (leaf->decoder_data) + { + int status = MimeLeaf_close_decoder(obj); + if (status < 0) return status; + } + + /* Now run the superclass's parse_eof, which will force out the line + buffer (which we may have just repopulated, above.) + */ + return ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_eof (obj, abort_p); +} + + +static bool +MimeLeaf_displayable_inline_p (MimeObjectClass *clazz, MimeHeaders *hdrs) +{ + return true; +} |