diff options
Diffstat (limited to 'em-format/e-mail-formatter-utils.c')
| -rw-r--r-- | em-format/e-mail-formatter-utils.c | 434 |
1 files changed, 434 insertions, 0 deletions
diff --git a/em-format/e-mail-formatter-utils.c b/em-format/e-mail-formatter-utils.c new file mode 100644 index 0000000000..12ee042c90 --- /dev/null +++ b/em-format/e-mail-formatter-utils.c @@ -0,0 +1,434 @@ +/* + * e-mail-formatter-utils.h + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) version 3. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with the program; if not, see <http://www.gnu.org/licenses/> + * + */ + +#ifdef HAVE_CONFIG +#include <config.h> +#endif + +#include "e-mail-formatter-utils.h" + +#include <camel/camel.h> + +#include <libemail-engine/e-mail-utils.h> +#include <libemail-engine/mail-config.h> +#include <e-util/e-util.h> +#include <e-util/e-datetime-format.h> +#include <libedataserver/libedataserver.h> + +#include <glib/gi18n.h> + +#include <string.h> + +static const gchar *addrspec_hdrs[] = { + "Sender", "From", "Reply-To", "To", "Cc", "Bcc", + "Resent-Sender", "Resent-From", "Resent-Reply-To", + "Resent-To", "Resent-Cc", "Resent-Bcc", NULL +}; + +void +e_mail_formatter_format_text_header (EMailFormatter *formatter, + GString *buffer, + const gchar *label, + const gchar *value, + guint32 flags) +{ + const gchar *fmt, *html; + gchar *mhtml = NULL; + gboolean is_rtl; + + if (value == NULL) + return; + + while (*value == ' ') + value++; + + if (!(flags & E_MAIL_FORMATTER_HEADER_FLAG_HTML)) + html = mhtml = camel_text_to_html (value, + e_mail_formatter_get_text_format_flags (formatter), 0); + else + html = value; + + is_rtl = gtk_widget_get_default_direction () == GTK_TEXT_DIR_RTL; + + if (flags & E_MAIL_FORMATTER_HEADER_FLAG_NOCOLUMNS) { + if (flags & E_MAIL_FORMATTER_HEADER_FLAG_BOLD) { + fmt = "<tr class=\"header-item\" style=\"display: %s\"><td><b>%s:</b> %s</td></tr>"; + } else { + fmt = "<tr class=\"header-item\" style=\"display: %s\"><td>%s: %s</td></tr>"; + } + } else if (flags & E_MAIL_FORMATTER_HEADER_FLAG_NODEC) { + if (is_rtl) + fmt = "<tr class=\"header-item rtl\" style=\"display: %s\"><td align=\"right\" valign=\"top\" width=\"100%%\">%2$s</td><th valign=top align=\"left\" nowrap>%1$s<b> </b></th></tr>"; + else + fmt = "<tr class=\"header-item\" style=\"display: %s\"><th align=\"right\" valign=\"top\" nowrap>%s<b> </b></th><td valign=top>%s</td></tr>"; + } else { + if (flags & E_MAIL_FORMATTER_HEADER_FLAG_BOLD) { + if (is_rtl) + fmt = "<tr class=\"header-item rtl\" style=\"display: %s\"><td align=\"right\" valign=\"top\" width=\"100%%\">%2$s</td><th align=\"left\" nowrap>%1$s:<b> </b></th></tr>"; + else + fmt = "<tr class=\"header-item\" style=\"display: %s\"><th align=\"right\" valign=\"top\" nowrap>%s:<b> </b></th><td>%s</td></tr>"; + } else { + if (is_rtl) + fmt = "<tr class=\"header-item rtl\" style=\"display: %s\"><td align=\"right\" valign=\"top\" width=\"100%\">%2$s</td><td align=\"left\" nowrap>%1$s:<b> </b></td></tr>"; + else + fmt = "<tr class=\"header-item\" style=\"display: %s\"><td align=\"right\" valign=\"top\" nowrap>%s:<b> </b></td><td>%s</td></tr>"; + } + } + + g_string_append_printf (buffer, fmt, + (flags & E_MAIL_FORMATTER_HEADER_FLAG_HIDDEN ? "none" : "table-row"), label, html); + + g_free (mhtml); +} + +gchar * +e_mail_formatter_format_address (EMailFormatter *formatter, + GString *out, + struct _camel_header_address *a, + gchar *field, + gboolean no_links, + gboolean elipsize) +{ + guint32 flags = CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES; + gchar *name, *mailto, *addr; + gint i = 0; + gchar *str = NULL; + gint limit = mail_config_get_address_count (); + + while (a) { + if (a->name) + name = camel_text_to_html (a->name, flags, 0); + else + name = NULL; + + switch (a->type) { + case CAMEL_HEADER_ADDRESS_NAME: + if (name && *name) { + gchar *real, *mailaddr; + + if (strchr (a->name, ',') || strchr (a->name, ';')) + g_string_append_printf (out, ""%s"", name); + else + g_string_append (out, name); + + g_string_append (out, " <"); + + /* rfc2368 for mailto syntax and url encoding extras */ + if ((real = camel_header_encode_phrase ((guchar *) a->name))) { + mailaddr = g_strdup_printf("%s <%s>", real, a->v.addr); + g_free (real); + mailto = camel_url_encode (mailaddr, "?=&()"); + g_free (mailaddr); + } else { + mailto = camel_url_encode (a->v.addr, "?=&()"); + } + } else { + mailto = camel_url_encode (a->v.addr, "?=&()"); + } + addr = camel_text_to_html (a->v.addr, flags, 0); + if (no_links) + g_string_append_printf (out, "%s", addr); + else + g_string_append_printf (out, "<a href=\"mailto:%s\">%s</a>", mailto, addr); + g_free (mailto); + g_free (addr); + + if (name && *name) + g_string_append (out, ">"); + break; + case CAMEL_HEADER_ADDRESS_GROUP: + g_string_append_printf (out, "%s: ", name); + e_mail_formatter_format_address ( + formatter, out, a->v.members, field, + no_links, elipsize); + g_string_append_printf (out, ";"); + break; + default: + g_warning ("Invalid address type"); + break; + } + + g_free (name); + + i++; + a = a->next; + if (a) + g_string_append (out, ", "); + + if (!elipsize) + continue; + + /* Let us add a '...' if we have more addresses */ + if (limit > 0 && (i == limit - 1)) { + const gchar *id = NULL; + + if (strcmp (field, _("To")) == 0) { + id = "to"; + } else if (strcmp (field, _("Cc")) == 0) { + id = "cc"; + } else if (strcmp (field, _("Bcc")) == 0) { + id = "bcc"; + } + + if (id) { + g_string_append_printf (out, + "<span id=\"__evo-moreaddr-%s\" " + "style=\"display: none;\">", id); + str = g_strdup_printf ( + "<img src=\"evo-file://%s/plus.png\" " + "id=\"__evo-moreaddr-img-%s\" class=\"navigable\">", + EVOLUTION_IMAGESDIR, id); + } + } + } + + if (elipsize && str) { + const gchar *id = NULL; + + if (strcmp (field, _("To")) == 0) { + id = "to"; + } else if (strcmp (field, _("Cc")) == 0) { + id = "cc"; + } else if (strcmp (field, _("Bcc")) == 0) { + id = "bcc"; + } + + if (id) { + g_string_append_printf (out, + "</span>" + "<span class=\"navigable\" " + "id=\"__evo-moreaddr-ellipsis-%s\" " + "style=\"display: inline;\">...</span>", + id); + } + } + + return str; +} + +void +e_mail_formatter_canon_header_name (gchar *name) +{ + gchar *inptr = name; + + /* canonicalise the header name... first letter is + * capitalised and any letter following a '-' also gets + * capitalised */ + + if (*inptr >= 'a' && *inptr <= 'z') + *inptr -= 0x20; + + inptr++; + + while (*inptr) { + if (inptr[-1] == '-' && *inptr >= 'a' && *inptr <= 'z') + *inptr -= 0x20; + else if (*inptr >= 'A' && *inptr <= 'Z') + *inptr += 0x20; + + inptr++; + } +} + +void +e_mail_formatter_format_header (EMailFormatter *formatter, + GString *buffer, + CamelMedium *part, + struct _camel_header_raw *header, + guint32 flags, + const gchar *charset) +{ + gchar *name, *buf, *value = NULL; + const gchar *label, *txt; + gboolean addrspec = FALSE; + gchar *str_field = NULL; + gint i; + + name = g_alloca (strlen (header->name) + 1); + strcpy (name, header->name); + e_mail_formatter_canon_header_name (name); + + for (i = 0; addrspec_hdrs[i]; i++) { + if (!strcmp (name, addrspec_hdrs[i])) { + addrspec = TRUE; + break; + } + } + + label = _(name); + + if (addrspec) { + struct _camel_header_address *addrs; + GString *html; + gchar *img; + const gchar *charset = e_mail_formatter_get_charset (formatter) ? + e_mail_formatter_get_charset (formatter) : + e_mail_formatter_get_default_charset (formatter); + + buf = camel_header_unfold (header->value); + if (!(addrs = camel_header_address_decode (buf, charset))) { + g_free (buf); + return; + } + + g_free (buf); + + html = g_string_new(""); + img = e_mail_formatter_format_address (formatter, html, addrs, (gchar *) label, + (flags & E_MAIL_FORMATTER_HEADER_FLAG_NOLINKS), + !(flags & E_MAIL_FORMATTER_HEADER_FLAG_NOELIPSIZE)); + + if (img) { + str_field = g_strdup_printf ("%s%s:", img, label); + label = str_field; + flags |= E_MAIL_FORMATTER_HEADER_FLAG_NODEC; + g_free (img); + } + + camel_header_address_list_clear (&addrs); + txt = value = html->str; + g_string_free (html, FALSE); + + flags |= E_MAIL_FORMATTER_HEADER_FLAG_HTML | E_MAIL_FORMATTER_HEADER_FLAG_BOLD; + } else if (!strcmp (name, "Subject")) { + buf = camel_header_unfold (header->value); + txt = value = camel_header_decode_string (buf, charset); + g_free (buf); + + flags |= E_MAIL_FORMATTER_HEADER_FLAG_BOLD; + } else if (!strcmp(name, "X-evolution-mailer")) { + /* pseudo-header */ + label = _("Mailer"); + txt = value = camel_header_format_ctext (header->value, charset); + flags |= E_MAIL_FORMATTER_HEADER_FLAG_BOLD; + } else if (!strcmp (name, "Date") || !strcmp (name, "Resent-Date")) { + gint msg_offset, local_tz; + time_t msg_date; + struct tm local; + gchar *html; + gboolean hide_real_date; + + hide_real_date = !e_mail_formatter_get_show_real_date (formatter); + + txt = header->value; + while (*txt == ' ' || *txt == '\t') + txt++; + + html = camel_text_to_html (txt, + e_mail_formatter_get_text_format_flags (formatter), 0); + + msg_date = camel_header_decode_date (txt, &msg_offset); + e_localtime_with_offset (msg_date, &local, &local_tz); + + /* Convert message offset to minutes (e.g. -0400 --> -240) */ + msg_offset = ((msg_offset / 100) * 60) + (msg_offset % 100); + /* Turn into offset from localtime, not UTC */ + msg_offset -= local_tz / 60; + + /* value will be freed at the end */ + if (!hide_real_date && !msg_offset) { + /* No timezone difference; just show the real Date: header */ + txt = value = html; + } else { + gchar *date_str; + + date_str = e_datetime_format_format ("mail", "header", + DTFormatKindDateTime, msg_date); + + if (hide_real_date) { + /* Show only the local-formatted date, losing all timezone + * information like Outlook does. Should we attempt to show + * it somehow? */ + txt = value = date_str; + } else { + txt = value = g_strdup_printf ("%s (<I>%s</I>)", html, date_str); + g_free (date_str); + } + g_free (html); + } + flags |= E_MAIL_FORMATTER_HEADER_FLAG_HTML | + E_MAIL_FORMATTER_HEADER_FLAG_BOLD; + } else if (!strcmp(name, "Newsgroups")) { + struct _camel_header_newsgroup *ng, *scan; + GString *html; + + buf = camel_header_unfold (header->value); + + if (!(ng = camel_header_newsgroups_decode (buf))) { + g_free (buf); + return; + } + + g_free (buf); + + html = g_string_new(""); + scan = ng; + while (scan) { + if (flags & E_MAIL_FORMATTER_HEADER_FLAG_NOLINKS) + g_string_append_printf (html, "%s", scan->newsgroup); + else + g_string_append_printf(html, "<a href=\"news:%s\">%s</a>", + scan->newsgroup, scan->newsgroup); + scan = scan->next; + if (scan) + g_string_append_printf(html, ", "); + } + + camel_header_newsgroups_free (ng); + + txt = html->str; + g_string_free (html, FALSE); + flags |= E_MAIL_FORMATTER_HEADER_FLAG_HTML | + E_MAIL_FORMATTER_HEADER_FLAG_BOLD; + } else if (!strcmp (name, "Received") || !strncmp (name, "X-", 2)) { + /* don't unfold Received nor extension headers */ + txt = value = camel_header_decode_string (header->value, charset); + } else { + /* don't unfold Received nor extension headers */ + buf = camel_header_unfold (header->value); + txt = value = camel_header_decode_string (buf, charset); + g_free (buf); + } + + e_mail_formatter_format_text_header (formatter, buffer, label, txt, flags); + + g_free (value); + g_free (str_field); +} + +GSList * +e_mail_formatter_find_rfc822_end_iter (GSList *iter) +{ + EMailPart *part; + gchar *end; + + part = iter->data; + end = g_strconcat (part->id, ".end", NULL); + for (; iter != NULL; iter = g_slist_next (iter)) { + part = iter->data; + if (!part) + continue; + + if (g_strcmp0 (part->id, end) == 0) { + g_free (end); + return iter; + } + } + g_free (end); + return iter; +} |