From 67b29dfe36a67a9145187c955855df29daec34b2 Mon Sep 17 00:00:00 2001 From: Dan Winship Date: Thu, 27 Apr 2000 03:32:10 +0000 Subject: Reorganize a bit and add a new flag, TEXT_TO_HTML_CONVERT_URLS to * mail-format.c (text_to_html): Reorganize a bit and add a new flag, TEXT_TO_HTML_CONVERT_URLS to recognize and wrap URLs in text. * mail-display.c (mail_html_new): Add link_clicked signal handler. (on_link_clicked): Use gnome_url_show to launch a browser. The Dingus has landed. svn path=/trunk/; revision=2653 --- mail/ChangeLog | 7 ++ mail/mail-display.c | 8 ++ mail/mail-format.c | 225 ++++++++++++++++++++++++++++++---------------------- 3 files changed, 145 insertions(+), 95 deletions(-) (limited to 'mail') diff --git a/mail/ChangeLog b/mail/ChangeLog index 676516a8cd..b78f6d01ab 100644 --- a/mail/ChangeLog +++ b/mail/ChangeLog @@ -1,5 +1,12 @@ 2000-04-26 Dan Winship + * mail-format.c (text_to_html): Reorganize a bit and add a new + flag, TEXT_TO_HTML_CONVERT_URLS to recognize and wrap URLs + in text. + + * mail-display.c (mail_html_new): Add link_clicked signal handler. + (on_link_clicked): Use gnome_url_show to launch a browser. + * mail-format.c: update for CamelStream changes. Update for CamelMimeBodyPart -> CamelMimePart diff --git a/mail/mail-display.c b/mail/mail-display.c index f5595dd671..d7ba658241 100644 --- a/mail/mail-display.c +++ b/mail/mail-display.c @@ -34,6 +34,12 @@ cid_stream (const char *cid, CamelMimeMessage *message) return camel_data_wrapper_get_output_stream (data); } +static void +on_link_clicked (GtkHTML *html, const char *url, gpointer user_data) +{ + gnome_url_show (url); +} + static void on_url_requested (GtkHTML *html, const char *url, GtkHTMLStreamHandle handle, gpointer user_data) @@ -78,6 +84,8 @@ mail_html_new (GtkHTML **html, GtkHTMLStreamHandle **stream, GTK_SIGNAL_FUNC (html_size_req), NULL); gtk_signal_connect (GTK_OBJECT (*html), "url_requested", GTK_SIGNAL_FUNC (on_url_requested), root); + gtk_signal_connect (GTK_OBJECT (*html), "link_clicked", + GTK_SIGNAL_FUNC (on_link_clicked), root); *stream = gtk_html_begin (*html, ""); if (init) { diff --git a/mail/mail-format.c b/mail/mail-format.c index ee0b6135c6..033440e876 100644 --- a/mail/mail-format.c +++ b/mail/mail-format.c @@ -77,13 +77,6 @@ static void handle_via_bonobo (CamelMimePart *part, CamelMimeMessage *root, GtkBox *box); -/* encodes some characters into their 'escaped' version; - * so '<' turns into '<', and '"' turns into '"' */ -static gchar *text_to_html (const guchar *input, guint len, - guint *encoded_len_return, gboolean add_pre, - gboolean convert_newlines_to_br, - gboolean convert_space_hack); - /* writes the header info for a mime message into an html stream */ static void write_headers (CamelMimeMessage *mime_message, GtkBox *box); @@ -346,36 +339,107 @@ call_handler_function (CamelMimePart *part, CamelMimeMessage *root, handle_unknown_type (part, root, box); } +int tth_interesting[] = { + 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x00 - 0x0f */ + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x10 - 0x1f */ + 1, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* sp - / */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 1, 2, 1, 2, /* 0 - ? */ + 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* @ - O */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, /* P - _ */ + 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* ` - o */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, /* p - del */ + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x80 - 0x8f */ + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x90 - 0x9f */ + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xa0 - 0xaf */ + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xb0 - 0xbf */ + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xc0 - 0xcf */ + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xd0 - 0xdf */ + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xe0 - 0xef */ + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 /* 0xf0 - 0xff */ +}; +#define TTH_SPECIAL 1 +#define TTH_PUNCTUATION 2 +#define TTH_ESCAPED 3 +#define TTH_EOF 4 + +#define TEXT_TO_HTML_PRE (1 << 0) +#define TEXT_TO_HTML_CONVERT_NL (1 << 1) +#define TEXT_TO_HTML_CONVERT_SPACES (1 << 2) +#define TEXT_TO_HTML_CONVERT_URLS (1 << 3) + +static char * +check_size (char **buffer, int *buffer_size, char *out, int len) +{ + if (out + len > *buffer + *buffer_size) { + int index = out - *buffer; + + *buffer_size *= 2; + *buffer = g_realloc (*buffer, *buffer_size); + out = *buffer + index; + } + return out; +} /* Convert plain text into equivalent-looking valid HTML. */ -static gchar * -text_to_html (const guchar *input, guint len, - guint *encoded_len_return, gboolean add_pre, - gboolean convert_newlines_to_br, - gboolean convert_space_hack) +static char * +text_to_html (const unsigned char *input, unsigned int flags) { - const guchar *cur = input; - guchar *buffer = NULL; - guchar *out = NULL; - gint buffer_size = 0; + const unsigned char *cur = input, *end; + char *buffer = NULL; + char *out = NULL; + int buffer_size = 0; /* Allocate a translation buffer. */ - buffer_size = len * 2 + 5; + buffer_size = strlen (input) * 2 + 5; buffer = g_malloc (buffer_size); out = buffer; - if (add_pre) + if (flags & TEXT_TO_HTML_PRE) out += sprintf (out, "
\n");
 
-	while (len--) {
-		if (out - buffer > buffer_size - 100) {
-			gint index = out - buffer;
-
-			buffer_size *= 2;
-			buffer = g_realloc (buffer, buffer_size);
-			out = buffer + index;
+	while (*cur) {
+		if (isalpha (*cur) && (flags & TEXT_TO_HTML_CONVERT_URLS)) {
+			if (!strncasecmp (cur, "http://", 7) ||
+			    !strncasecmp (cur, "ftp://", 6) ||
+			    !strncasecmp (cur, "nntp://", 7) ||
+			    !strncasecmp (cur, "mailto:", 7) ||
+			    !strncasecmp (cur, "news:", 5)) {
+				/* Skip to end of URL. */
+				end = cur;
+				while (*end && !isspace (*end) && *end != '"')
+					end++;
+
+				/* Back up if we probably went too far. */
+				while (end > cur &&
+				       strchr (",.!?;:>", *(end - 1)))
+					end--;
+
+				out = check_size (&buffer, &buffer_size, out,
+						  (end - cur) * 2 + 15);
+				out += sprintf (out,
+						"%.*s",
+						end - cur, cur,
+						end - cur, cur);
+				cur = end;
+			}
 		}
 
+		/* Skip until we need to care. */
+		end = cur;
+		while (!tth_interesting[*end] ||
+			(tth_interesting[*end] == TTH_PUNCTUATION &&
+			 !(flags & TEXT_TO_HTML_CONVERT_URLS)))
+			end++;
+
+		out = check_size (&buffer, &buffer_size, out,
+				  end - cur + 10);
+		memcpy (out, cur, end - cur);
+		out += end - cur;
+
+		if (!*end)
+			break;
+		cur = end;
+
 		switch (*cur) {
 		case '<':
 			strcpy (out, "<");
@@ -399,16 +463,15 @@ text_to_html (const guchar *input, guint len,
 
 		case '\n':
 			*out++ = *cur;
-			if (convert_newlines_to_br) {
+			if (flags & TEXT_TO_HTML_CONVERT_NL) {
 				strcpy (out, "
");
 				out += 4;
 			}
 			break;
 
 		case ' ':
-			if (convert_space_hack) {
-				if (cur == input ||
-				    (len > 0 && *(cur + 1) == ' ')) {
+			if (flags & TEXT_TO_HTML_CONVERT_SPACES) {
+				if (cur == input || *(cur + 1) == ' ') {
 					strcpy (out, " ");
 					out += 6;
 					break;
@@ -429,12 +492,11 @@ text_to_html (const guchar *input, guint len,
 		cur++;
 	}
 
-	if (add_pre)
+	out = check_size (&buffer, &buffer_size, out, 7);
+	if (flags & TEXT_TO_HTML_PRE)
 		strcpy (out, "
"); else *out = '\0'; - if (encoded_len_return) - *encoded_len_return = out - buffer; return buffer; } @@ -449,8 +511,8 @@ write_field_to_stream (const char *description, const char *value, if (value) { unsigned char *p; - encoded_value = text_to_html (value, strlen(value), - NULL, FALSE, TRUE, FALSE); + encoded_value = text_to_html (value, TEXT_TO_HTML_CONVERT_NL | + TEXT_TO_HTML_CONVERT_URLS); for (p = (unsigned char *)encoded_value; *p; p++) { if (!isprint (*p)) *p = '?'; @@ -543,6 +605,25 @@ write_headers (CamelMimeMessage *mime_message, GtkBox *box) #define MIME_TYPE_SUB(a) ((camel_mime_part_get_content_type (CAMEL_MIME_PART (a)))->subtype) +static char * +get_data_wrapper_text (CamelDataWrapper *data) +{ + CamelStream *memstream; + GByteArray *ba; + char *text; + + ba = g_byte_array_new (); + memstream = camel_stream_mem_new_with_byte_array (ba); + + camel_data_wrapper_write_to_stream (data, memstream); + text = g_malloc (ba->len + 1); + memcpy (text, ba->data, ba->len); + text[ba->len] = '\0'; + + camel_stream_close (memstream); + return text; +} + /*----------------------------------------------------------------------* * Mime handling functions *----------------------------------------------------------------------*/ @@ -554,11 +635,7 @@ handle_text_plain (CamelMimePart *part, CamelMimeMessage *root, GtkBox *box) GtkHTMLStreamHandle *stream; CamelDataWrapper *wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part)); - char *text; - CamelStream *wrapper_output_stream; - gchar tmp_buffer[4096]; - gint nb_bytes_read; - gboolean empty_text = TRUE; + char *text, *htmltext; GMimeContentField *type; const char *format; @@ -573,35 +650,14 @@ handle_text_plain (CamelMimePart *part, CamelMimeMessage *root, GtkBox *box) return; } - /* Get the output stream of the data wrapper. */ - wrapper_output_stream = camel_data_wrapper_get_output_stream (wrapper); - camel_stream_reset (wrapper_output_stream); - - do { - /* Read next chunk of text. */ - nb_bytes_read = camel_stream_read (wrapper_output_stream, - tmp_buffer, - sizeof (tmp_buffer)); - - /* If there's any text, write it to the stream. */ - if (nb_bytes_read > 0) { - int returned_strlen; - - empty_text = FALSE; - - /* replace '<' with '<', etc. */ - text = text_to_html (tmp_buffer, - nb_bytes_read, - &returned_strlen, - FALSE, FALSE, FALSE); - gtk_html_write (html, stream, text, - returned_strlen); - g_free (text); - } - } while (!camel_stream_eos (wrapper_output_stream)); - - if (empty_text) + text = get_data_wrapper_text (wrapper); + if (text && *text) { + htmltext = text_to_html (text, TEXT_TO_HTML_CONVERT_URLS); + mail_html_write (html, stream, htmltext); + g_free (htmltext); + } else mail_html_write (html, stream, "(empty)"); + g_free (text); mail_html_write (html, stream, "\n"); mail_html_end (html, stream, TRUE, box); @@ -617,7 +673,7 @@ handle_text_plain_flowed (CamelMimePart *part, CamelMimeMessage *root, camel_medium_get_content_object (CAMEL_MEDIUM (part)); char *text, *line, *p; CamelStream *wrapper_output_stream, *buffer; - int prevquoting = 0, quoting, len, returned_strlen; + int prevquoting = 0, quoting, len; gboolean br_pending = FALSE; mail_html_new (&html, &stream, root, TRUE); @@ -662,15 +718,14 @@ handle_text_plain_flowed (CamelMimePart *part, CamelMimeMessage *root, if (*p == ' ') p++; - len = strlen (p); - /* replace '<' with '<', etc. */ - text = text_to_html (p, len, &returned_strlen, - FALSE, FALSE, TRUE); - if (returned_strlen) - gtk_html_write (html, stream, text, returned_strlen); + text = text_to_html (p, TEXT_TO_HTML_CONVERT_SPACES | + TEXT_TO_HTML_CONVERT_URLS); + if (text && *text) + mail_html_write (html, stream, text); g_free (text); + len = strlen (p); if (len == 0 || p[len - 1] != ' ' || !strcmp (p, "-- ")) br_pending = TRUE; g_free (line); @@ -1178,25 +1233,6 @@ handle_via_bonobo (CamelMimePart *part, CamelMimeMessage *root, GtkBox *box) } -static char * -get_data_wrapper_text (CamelDataWrapper *data) -{ - CamelStream *memstream; - GByteArray *ba; - char *text; - - ba = g_byte_array_new (); - memstream = camel_stream_mem_new_with_byte_array (ba); - - camel_data_wrapper_write_to_stream (data, memstream); - text = g_malloc (ba->len + 1); - memcpy (text, ba->data, ba->len); - text[ba->len] = '\0'; - - camel_stream_close (memstream); - return text; -} - static char * reply_body (CamelDataWrapper *data, gboolean *html) { @@ -1340,8 +1376,7 @@ mail_generate_reply (CamelMimeMessage *message, gboolean to_all) /* Now convert that to HTML. */ repl_text = text_to_html (quoted_text, - strlen (quoted_text), - &len, TRUE, FALSE, FALSE); + TEXT_TO_HTML_PRE); g_free (quoted_text); } e_msg_composer_set_body_text (composer, repl_text); -- cgit