Imported mailparse extension

@- New mailparse extension for parsing and manipulating MIME mail (Wez)

1 files changed, 123 insertions, 0 deletions

diff --git a/ext/mailparse/rfc2045acchk.c b/ext/mailparse/rfc2045acchk.c
new file mode 100644
index 0000000000..8fcd16dbaf
--- /dev/null
+++ b/ext/mailparse/rfc2045acchk.c
@@ -0,0 +1,123 @@
+/* $Id$ */
+/*
+** Copyright 1998 - 1999 Double Precision, Inc.  See COPYING for
+** distribution information.
+*/
+#include "php.h"
+#include "php_mailparse.h"
+
+
+int rfc2045_ac_check(struct rfc2045 *p, int rwmode)
+{
+	int	flag=0;		/* Flag - rewriting suggested */
+	struct	rfc2045 *c;
+	int	hasnon7bit=p->has8bitchars;
+			/* hasnon7bit: 8bit chars in this section or subsections */
+	const char *te;
+	int	is8bitte;
+	MAILPARSELS_FETCH();
+
+	for (c=p->firstpart; c; c=c->next)
+		if (!c->isdummy)
+		{
+			if (rfc2045_ac_check(c, rwmode))	flag=1;
+			if (strcmp(c->content_transfer_encoding, "7bit") &&
+				strcmp(c->content_transfer_encoding, "quoted-printable"))
+				hasnon7bit=1;
+			if (c->has8bitchars)
+				p->has8bitchars=1;
+		}
+
+	if (RFC2045_ISMIME1DEF(p->mime_version) && !p->content_type)
+	{
+		p->content_type = estrdup("text/plain");
+		if (p->mime_version)
+		{
+			flag=1;
+		}
+	}
+
+	if (RFC2045_ISMIME1DEF(p->mime_version)
+		&& !rfc2045_getattr(p->content_type_attr, "charset")
+		&& strncasecmp(p->content_type, "text/", 5) == 0)
+	{
+		rfc2045_setattr(&p->content_type_attr, "charset",
+			MAILPARSEG(def_charset));
+
+		if (p->mime_version
+
+			&& p->firstpart == 0 /* sam - don't trigger rewrites on changes to multipart headers */
+
+			)
+		{
+			flag=1;
+		}
+	}
+
+	if (RFC2045_ISMIME1DEF(p->mime_version)
+		&& !p->content_transfer_encoding)
+	{
+		p->content_transfer_encoding = estrdup(hasnon7bit ? "8bit":"7bit");
+		if (p->mime_version
+
+			&& p->firstpart == 0 /* sam - don't trigger rewrites on changes to multipart headers */
+			)
+		{
+			flag=1;
+		}
+	}
+
+#if 0
+	if (RFC2045_ISMIME1DEF(p->mime_version)
+		&& strncmp(p->content_type, "text/", 5) == 0 && !hasnon7bit
+		&& strcmp(p->content_transfer_encoding, "7bit"))
+	{
+		if (p->mime_version)
+		{
+			flag=1;
+		}
+	}
+#endif
+
+	if (RFC2045_ISMIME1DEF(p->mime_version))
+	{
+		/* Check for conversions */
+
+		te=p->content_transfer_encoding;
+		is8bitte=strcasecmp(te, "base64") &&
+			strcasecmp(te, "quoted-printable") &&
+			strcasecmp(te, "7bit");	/* 8 bit contents */
+
+		if (is8bitte && !p->has8bitchars && !p->haslongline)
+		{
+			if (p->rw_transfer_encoding)
+				efree(p->rw_transfer_encoding);
+			p->rw_transfer_encoding=estrdup("7bit");
+			flag=1;
+			is8bitte=0;
+		}
+
+		if (rwmode == RFC2045_RW_7BIT && (is8bitte || p->haslongline))
+		{
+			if (p->rw_transfer_encoding)
+				efree(p->rw_transfer_encoding);
+			p->rw_transfer_encoding=estrdup("quoted-printable");
+			flag=1;
+		}
+		else if (rwmode == RFC2045_RW_8BIT &&
+			strcasecmp(te, "quoted-printable") == 0 &&
+			!p->haslongline)
+		{
+			if (p->rw_transfer_encoding)
+				efree(p->rw_transfer_encoding);
+			p->rw_transfer_encoding=estrdup(hasnon7bit ? "8bit":"7bit");
+			flag=1;
+		}
+	}
+
+	if (!p->mime_version)
+	{
+		p->mime_version = estrdup("1.0");
+	}
+	return (flag);
+}