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authorJeffrey Stedfast <fejj@ximian.com>2003-04-01 05:54:46 +0800
committerJeffrey Stedfast <fejj@src.gnome.org>2003-04-01 05:54:46 +0800
commit7e6119378401be13db70e78cf249104e86a9101e (patch)
treefce5453508fcb6a99a390d88519d6313d8f7acb6
parenteaf13cd032d16cea453cd4d00240faccd9a3d672 (diff)
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Use strncasecmp for matching the nofill and /nofill tags. Also fixed to
2003-03-31 Jeffrey Stedfast <fejj@ximian.com> * camel-mime-filter-enriched.c (enriched_to_html): Use strncasecmp for matching the nofill and /nofill tags. Also fixed to handle enriched tags that require <param> tags. svn path=/trunk/; revision=20603
-rw-r--r--camel/ChangeLog6
-rw-r--r--camel/camel-mime-filter-enriched.c278
2 files changed, 243 insertions, 41 deletions
diff --git a/camel/ChangeLog b/camel/ChangeLog
index 518237af2e..a7022b0cc7 100644
--- a/camel/ChangeLog
+++ b/camel/ChangeLog
@@ -1,3 +1,9 @@
+2003-03-31 Jeffrey Stedfast <fejj@ximian.com>
+
+ * camel-mime-filter-enriched.c (enriched_to_html): Use strncasecmp
+ for matching the nofill and /nofill tags. Also fixed to handle
+ enriched tags that require <param> tags.
+
2003-03-28 Not Zed <NotZed@Ximian.com>
* providers/local/camel-spool-store.c (get_folder): remove unused
diff --git a/camel/camel-mime-filter-enriched.c b/camel/camel-mime-filter-enriched.c
index 349a56d07b..23ffd73493 100644
--- a/camel/camel-mime-filter-enriched.c
+++ b/camel/camel-mime-filter-enriched.c
@@ -32,38 +32,62 @@
#include "camel-mime-filter-enriched.h"
+/* text/enriched is rfc1896 */
+
+typedef char * (*EnrichedParamParser) (const char *inptr, int inlen);
+
+static char *param_parse_colour (const char *inptr, int inlen);
+static char *param_parse_font (const char *inptr, int inlen);
+static char *param_parse_lang (const char *inptr, int inlen);
+
static struct {
char *enriched;
char *html;
+ gboolean needs_param;
+ EnrichedParamParser parse_param; /* parses *and* validates the input */
} enriched_tags[] = {
- { "bold", "<b>" },
- { "/bold", "</b>" },
- { "italic", "<i>" },
- { "/italic", "</i>" },
- { "fixed", "<tt>" },
- { "/fixed", "</tt>" },
- { "smaller", "<font size=-1>" },
- { "/smaller", "</font>" },
- { "bigger", "<font size=+1>" },
- { "/bigger", "</font>" },
- { "underline", "<u>" },
- { "/underline", "</u>" },
- { "center", "<p align=center>" },
- { "/center", "</p>" },
- { "flushleft", "<p align=left>" },
- { "/flushleft", "</p>" },
- { "flushright", "<p align=right>" },
- { "/flushright", "</p>" },
- { "excerpt", "<blockquote>" },
- { "/excerpt", "</blockquote>" },
- { "paragraph", "<p>" },
- { "signature", "<address>" },
- { "/signature", "</address>" },
- { "comment", "<!-- " },
- { "/comment", " -->" },
- { "param", "<!-- " },
- { "/param", " -->" },
- { "np", "<hr>" }
+ { "bold", "<b>", FALSE, NULL },
+ { "/bold", "</b>", FALSE, NULL },
+ { "italic", "<i>", FALSE, NULL },
+ { "/italic", "</i>", FALSE, NULL },
+ { "fixed", "<tt>", FALSE, NULL },
+ { "/fixed", "</tt>", FALSE, NULL },
+ { "smaller", "<font size=-1>", FALSE, NULL },
+ { "/smaller", "</font>", FALSE, NULL },
+ { "bigger", "<font size=+1>", FALSE, NULL },
+ { "/bigger", "</font>", FALSE, NULL },
+ { "underline", "<u>", FALSE, NULL },
+ { "/underline", "</u>", FALSE, NULL },
+ { "center", "<p align=center>", FALSE, NULL },
+ { "/center", "</p>", FALSE, NULL },
+ { "flushleft", "<p align=left>", FALSE, NULL },
+ { "/flushleft", "</p>", FALSE, NULL },
+ { "flushright", "<p align=right>", FALSE, NULL },
+ { "/flushright", "</p>", FALSE, NULL },
+ { "excerpt", "<blockquote>", FALSE, NULL },
+ { "/excerpt", "</blockquote>", FALSE, NULL },
+ { "paragraph", "<p>", FALSE, NULL },
+ { "signature", "<address>", FALSE, NULL },
+ { "/signature", "</address>", FALSE, NULL },
+ { "comment", "<!-- ", FALSE, NULL },
+ { "/comment", " -->", FALSE, NULL },
+ { "np", "<hr>", FALSE, NULL },
+ { "fontfamily", "<font face=\"%s\">", TRUE, param_parse_font },
+ { "/fontfamily", "</font>", FALSE, NULL },
+ { "color", "<font color=\"%s\">", TRUE, param_parse_colour },
+ { "/color", "</font>", FALSE, NULL },
+ { "lang", "<span lang=\"%s\">", TRUE, param_parse_lang },
+ { "/lang", "</span>", FALSE, NULL },
+
+ /* don't handle this tag yet... */
+ { "paraindent", "<!-- ", /* TRUE */ FALSE, NULL },
+ { "/paraindent", " -->", FALSE, NULL },
+
+ /* as soon as we support all the tags that can have a param
+ * tag argument, these should be unnecessary, but we'll keep
+ * them anyway just in case? */
+ { "param", "<!-- ", FALSE, NULL },
+ { "/param", " -->", FALSE, NULL },
};
#define NUM_ENRICHED_TAGS (sizeof (enriched_tags) / sizeof (enriched_tags[0]))
@@ -137,6 +161,119 @@ camel_mime_filter_enriched_init (CamelMimeFilterEnriched *filter)
filter->nofill = 0;
}
+
+#if 0
+static gboolean
+enriched_tag_needs_param (const char *tag)
+{
+ int i;
+
+ for (i = 0; i < NUM_ENRICHED_TAGS; i++)
+ if (!strcasecmp (tag, enriched_tags[i].enriched))
+ return enriched_tags[i].needs_param;
+
+ return FALSE;
+}
+#endif
+
+static gboolean
+html_tag_needs_param (const char *tag)
+{
+ return strstr (tag, "%s") != NULL;
+}
+
+static const char *valid_colours[] = {
+ "red", "green", "blue", "yellow", "cyan", "magenta", "black", "white"
+};
+
+#define NUM_VALID_COLOURS (sizeof (valid_colours) / sizeof (valid_colours[0]))
+
+static char *
+param_parse_colour (const char *inptr, int inlen)
+{
+ const char *inend, *end;
+ guint32 rgb = 0;
+ guint v;
+ int i;
+
+ for (i = 0; i < NUM_VALID_COLOURS; i++) {
+ if (!strncasecmp (inptr, valid_colours[i], inlen))
+ return g_strdup (valid_colours[i]);
+ }
+
+ /* check for numeric r/g/b in the format: ####,####,#### */
+ if (inptr[4] != ',' || inptr[9] != ',') {
+ /* okay, mailer must have used a string name that
+ * rfc1896 did not specify? do some simple scanning
+ * action, a colour name MUST be [a-zA-Z] */
+ end = inptr;
+ inend = inptr + inlen;
+ while (end < inend && ((*end >= 'a' && *end <= 'z') || (*end >= 'A' && *end <= 'Z')))
+ end++;
+
+ return g_strndup (inptr, end - inptr);
+ }
+
+ for (i = 0; i < 3; i++) {
+ v = strtoul (inptr, (char **) &end, 16);
+ if (end != inptr + 4)
+ goto invalid_format;
+
+ v >>= 8;
+ rgb = (rgb << 8) | (v & 0xff);
+
+ inptr += 5;
+ }
+
+ return g_strdup_printf ("#%.6X", rgb);
+
+ invalid_format:
+
+ /* default colour? */
+ return g_strdup ("black");
+}
+
+static char *
+param_parse_font (const char *fontfamily, int inlen)
+{
+ register const char *inptr = fontfamily;
+ const char *inend = inptr + inlen;
+
+ /* don't allow any of '"', '<', nor '>' */
+ while (inptr < inend && *inptr != '"' && *inptr != '<' && *inptr != '>')
+ inptr++;
+
+ return g_strndup (fontfamily, inptr - fontfamily);
+}
+
+static char *
+param_parse_lang (const char *lang, int inlen)
+{
+ register const char *inptr = lang;
+ const char *inend = inptr + inlen;
+
+ /* don't allow any of '"', '<', nor '>' */
+ while (inptr < inend && *inptr != '"' && *inptr != '<' && *inptr != '>')
+ inptr++;
+
+ return g_strndup (lang, inptr - lang);
+}
+
+static char *
+param_parse (const char *enriched, const char *inptr, int inlen)
+{
+ int i;
+
+ for (i = 0; i < NUM_ENRICHED_TAGS; i++) {
+ if (!strcasecmp (enriched, enriched_tags[i].enriched))
+ return enriched_tags[i].parse_param (inptr, inlen);
+ }
+
+ g_assert_not_reached ();
+
+ return NULL;
+}
+
#define IS_RICHTEXT CAMEL_MIME_FILTER_ENRICHED_IS_RICHTEXT
static void
@@ -155,7 +292,7 @@ enriched_to_html (CamelMimeFilter *filter, char *in, size_t inlen, size_t prespa
outptr = filter->outbuf;
outend = filter->outbuf + filter->outsize;
- loop:
+ retry:
do {
while (inptr < inend && outptr < outend && !strchr (" <>&\n", *inptr))
*outptr++ = *inptr++;
@@ -242,7 +379,7 @@ enriched_to_html (CamelMimeFilter *filter, char *in, size_t inlen, size_t prespa
goto backup;
}
}
-
+
tag = inptr;
while (inptr < inend && *inptr != '>')
inptr++;
@@ -252,7 +389,7 @@ enriched_to_html (CamelMimeFilter *filter, char *in, size_t inlen, size_t prespa
goto need_input;
}
- if (!strncmp (tag, "nofill>", 7)) {
+ if (!strncasecmp (tag, "nofill>", 7)) {
if ((outptr + 5) < outend) {
memcpy (outptr, "<pre>", 5);
enriched->nofill++;
@@ -261,7 +398,7 @@ enriched_to_html (CamelMimeFilter *filter, char *in, size_t inlen, size_t prespa
inptr = tag - 1;
goto backup;
}
- } else if (!strncmp (tag, "/nofill>", 8)) {
+ } else if (!strncasecmp (tag, "/nofill>", 8)) {
if ((outptr + 6) < outend) {
memcpy (outptr, "</pre>", 6);
enriched->nofill--;
@@ -275,21 +412,80 @@ enriched_to_html (CamelMimeFilter *filter, char *in, size_t inlen, size_t prespa
char *enriched_tag;
int len;
- enriched_tag = g_strndup (tag, (inptr - tag));
+ len = inptr - tag;
+ enriched_tag = g_alloca (len + 1);
+ memcpy (enriched_tag, tag, len);
+ enriched_tag[len] = '\0';
+
html_tag = g_hash_table_lookup (enriched_hash, enriched_tag);
- g_free (enriched_tag);
+
if (html_tag) {
- len = strlen (html_tag);
- if ((outptr + len) < outend) {
- memcpy (outptr, html_tag, len);
- outptr += len;
+ if (html_tag_needs_param (html_tag)) {
+ const char *start;
+ char *param;
+
+ while (inptr < inend && *inptr != '<')
+ inptr++;
+
+#define PARAM_TAG_MIN_LEN (sizeof ("<param>") + sizeof ("</param>") - 1)
+ if (inptr == inend || (inend - inptr) <= PARAM_TAG_MIN_LEN) {
+ inptr = tag - 1;
+ goto need_input;
+ }
+
+ if (strncasecmp (inptr, "<param>", 7) != 0) {
+ /* ignore the enriched command tag... */
+ inptr -= 1;
+ goto loop;
+ }
+
+ inptr += 7;
+ start = inptr;
+
+ while (inptr < inend && *inptr != '<')
+ inptr++;
+
+ if (inptr == inend || (inend - inptr) <= 8) {
+ inptr = tag - 1;
+ goto need_input;
+ }
+
+ if (strncasecmp (inptr, "</param>", 8) != 0) {
+ /* ignore the enriched command tag... */
+ inptr += 7;
+ goto loop;
+ }
+
+ len = inptr - start;
+ param = param_parse (enriched_tag, start, len);
+ len = strlen (param);
+
+ inptr += 7;
+
+ len += strlen (html_tag);
+
+ if ((outptr + len) < outend) {
+ outptr += snprintf (outptr, len, html_tag, param);
+ g_free (param);
+ } else {
+ g_free (param);
+ inptr = tag - 1;
+ goto backup;
+ }
} else {
- inptr = tag - 1;
- goto backup;
+ len = strlen (html_tag);
+ if ((outptr + len) < outend) {
+ memcpy (outptr, html_tag, len);
+ outptr += len;
+ } else {
+ inptr = tag - 1;
+ goto backup;
+ }
}
}
}
+ loop:
inptr++;
break;
default:
@@ -323,7 +519,7 @@ enriched_to_html (CamelMimeFilter *filter, char *in, size_t inlen, size_t prespa
outend = filter->outbuf + filter->outsize;
outptr = filter->outbuf + offset;
- goto loop;
+ goto retry;
} else {
camel_mime_filter_backup (filter, inptr, (unsigned) (inend - inptr));
}