Made GPG signatures verifiable by clicking the
[claws.git] / src / textview.c
index b5bec13ed078b9ea40d511e3d3a18efe0f551292..4a7fa8568de83fad69008f56109a2532b9cda09f 100644 (file)
@@ -50,6 +50,7 @@
 #include "addressbook.h"
 #include "displayheader.h"
 #include "account.h"
+#include "mimeview.h"
 
 #define FONT_LOAD(font, s) \
 { \
@@ -78,6 +79,13 @@ static GdkColor quote_colors[3] = {
        {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
 };
 
+static GdkColor signature_color = {
+       (gulong)0,
+       (gushort)0x7fff,
+       (gushort)0x7fff,
+       (gushort)0x7fff
+};
+       
 static GdkColor uri_color = {
        (gulong)0,
        (gushort)0,
@@ -115,6 +123,9 @@ static void textview_show_ertf              (TextView       *textview,
 static void textview_add_part          (TextView       *textview,
                                         MimeInfo       *mimeinfo,
                                         FILE           *fp);
+static void textview_add_parts         (TextView       *textview,
+                                        MimeInfo       *mimeinfo,
+                                        FILE           *fp);
 static void textview_write_body                (TextView       *textview,
                                         MimeInfo       *mimeinfo,
                                         FILE           *fp,
@@ -165,7 +176,7 @@ TextView *textview_create(void)
        GtkWidget *text_sb;
        GtkWidget *text_mb;
 
-       debug_print(_("Creating text view...\n"));
+       debug_print("Creating text view...\n");
        textview = g_new0(TextView, 1);
 
        scrolledwin_sb = gtk_scrolled_window_new(NULL, NULL);
@@ -257,6 +268,7 @@ TextView *textview_create(void)
        textview->cur_pos          = 0;
        textview->show_all_headers = FALSE;
        textview->last_buttonpress = GDK_NOTHING;
+       textview->show_url_msgid   = 0;
 
        return textview;
 }
@@ -284,21 +296,23 @@ void textview_update_message_colors(void)
                                               &quote_colors[2]);
                gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
                                               &uri_color);
+               gtkut_convert_int_to_gdk_color(prefs_common.signature_col,
+                                              &signature_color);
        } else {
                quote_colors[0] = quote_colors[1] = quote_colors[2] = 
-                       uri_color = emphasis_color = black;
+                       uri_color = emphasis_color = signature_color = black;
        }
 }
 
 void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
                           const gchar *file)
 {
-       GtkSText *text = GTK_STEXT(textview->text);
+       GtkSText *text;
        FILE *fp;
        const gchar *charset = NULL;
        GPtrArray *headers = NULL;
 
-       if ((fp = fopen(file, "r")) == NULL) {
+       if ((fp = fopen(file, "rb")) == NULL) {
                FILE_OP_ERROR(file, "fopen");
                return;
        }
@@ -309,8 +323,8 @@ void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
                charset = mimeinfo->charset;
        textview_set_font(textview, charset);
        textview_clear(textview);
-       textview->body_pos = 0;
-       textview->cur_pos  = 0;
+
+       text = GTK_STEXT(textview->text);
 
        gtk_stext_freeze(text);
 
@@ -322,15 +336,7 @@ void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
                textview->body_pos = gtk_stext_get_length(text);
        }
 
-       while (mimeinfo != NULL) {
-               textview_add_part(textview, mimeinfo, fp);
-               if (mimeinfo->parent && mimeinfo->parent->content_type &&
-                   !strcasecmp(mimeinfo->parent->content_type,
-                               "multipart/alternative"))
-                       mimeinfo = mimeinfo->parent->next;
-               else
-                       mimeinfo = procmime_mimeinfo_next(mimeinfo);
-       }
+       textview_add_parts(textview, mimeinfo, fp);
 
        gtk_stext_thaw(text);
 
@@ -339,17 +345,22 @@ void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
 
 void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
 {
-       GtkSText *text = GTK_STEXT(textview->text);
+       GtkSText *text;
        gchar buf[BUFFSIZE];
        const gchar *boundary = NULL;
        gint boundary_len = 0;
        const gchar *charset = NULL;
        GPtrArray *headers = NULL;
+       gboolean is_rfc822_part = FALSE;
 
        g_return_if_fail(mimeinfo != NULL);
        g_return_if_fail(fp != NULL);
 
-       if (mimeinfo->mime_type == MIME_MULTIPART) return;
+       if (mimeinfo->mime_type == MIME_MULTIPART) {
+               textview_clear(textview);
+               textview_add_parts(textview, mimeinfo, fp);
+               return;
+       }
 
        if (mimeinfo->parent && mimeinfo->parent->boundary) {
                boundary = mimeinfo->parent->boundary;
@@ -359,7 +370,7 @@ void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
        if (!boundary && (mimeinfo->mime_type == MIME_TEXT || 
                          mimeinfo->mime_type == MIME_TEXT_HTML || 
                          mimeinfo->mime_type == MIME_TEXT_ENRICHED)) {
-       
+               
                if (fseek(fp, mimeinfo->fpos, SEEK_SET) < 0)
                        perror("fseek");
                headers = textview_scan_header(textview, fp);
@@ -392,17 +403,15 @@ void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
        }
 
        /* display attached RFC822 single text message */
-       if (mimeinfo->parent && mimeinfo->mime_type == MIME_MESSAGE_RFC822) {
-               if (headers) procheader_header_array_destroy(headers);
-               if (!mimeinfo->sub || mimeinfo->sub->children) return;
-               headers = textview_scan_header(textview, fp);
-               mimeinfo = mimeinfo->sub;
-       } else if (!mimeinfo->parent &&
-                  mimeinfo->mime_type == MIME_MESSAGE_RFC822) {
+       if (mimeinfo->mime_type == MIME_MESSAGE_RFC822) {
                if (headers) procheader_header_array_destroy(headers);
-               if (!mimeinfo->sub) return;
+               if (!mimeinfo->sub) {
+                       textview_clear(textview);
+                       return;
+               }
                headers = textview_scan_header(textview, fp);
                mimeinfo = mimeinfo->sub;
+               is_rfc822_part = TRUE;
        }
 
        if (prefs_common.force_charset)
@@ -411,20 +420,23 @@ void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
                charset = mimeinfo->charset;
        textview_set_font(textview, charset);
 
-       textview_clear(textview);
-       gtk_stext_freeze(text);
+       text = GTK_STEXT(textview->text);
 
-       textview->body_pos = 0;
-       textview->cur_pos  = 0;
+       gtk_stext_freeze(text);
+       textview_clear(textview);
 
        if (headers) {
                textview_show_header(textview, headers);
-               gtk_stext_insert(text, NULL, NULL, NULL, "\n", 1);
                procheader_header_array_destroy(headers);
                textview->body_pos = gtk_stext_get_length(text);
+               if (!mimeinfo->main)
+                       gtk_stext_insert(text, NULL, NULL, NULL, "\n", 1);
        }
 
-       textview_write_body(textview, mimeinfo, fp, charset);
+       if (mimeinfo->mime_type == MIME_MULTIPART || is_rfc822_part)
+               textview_add_parts(textview, mimeinfo, fp);
+       else
+               textview_write_body(textview, mimeinfo, fp, charset);
 
        gtk_stext_thaw(text);
 }
@@ -465,15 +477,23 @@ static void textview_add_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
        if (mimeinfo->mime_type == MIME_MESSAGE_RFC822) {
                headers = textview_scan_header(textview, fp);
                if (headers) {
+                       gtk_stext_freeze(text);
                        gtk_stext_insert(text, NULL, NULL, NULL, "\n", 1);
                        textview_show_header(textview, headers);
                        procheader_header_array_destroy(headers);
+                       gtk_stext_thaw(text);
                }
                return;
        }
 
        gtk_stext_freeze(text);
 
+#if USE_GPGME
+       if (mimeinfo->sigstatus)
+               g_snprintf(buf, sizeof(buf), "\n[%s (%s)]\n",
+                          mimeinfo->content_type, mimeinfo->sigstatus);
+       else
+#endif
        if (mimeinfo->filename || mimeinfo->name)
                g_snprintf(buf, sizeof(buf), "\n[%s  %s (%d bytes)]\n",
                           mimeinfo->filename ? mimeinfo->filename :
@@ -483,6 +503,22 @@ static void textview_add_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
                g_snprintf(buf, sizeof(buf), "\n[%s (%d bytes)]\n",
                           mimeinfo->content_type, mimeinfo->size);
 
+#if USE_GPGME
+       if (mimeinfo->sigstatus && !mimeinfo->sigstatus_full) {
+               gchar *tmp;
+               /* use standard font */
+               gpointer oldfont = textview->msgfont;
+               textview->msgfont = NULL;
+
+               tmp = g_strconcat("pgp: ", _("Check signature"), NULL);
+               textview_write_link(textview, tmp, buf, NULL);
+               
+               /* put things back */
+               textview->msgfont = (GdkFont *)oldfont;
+               oldfont = NULL;
+               g_free(tmp);
+       } else
+#endif
        if (mimeinfo->mime_type != MIME_TEXT &&
            mimeinfo->mime_type != MIME_TEXT_HTML &&
            mimeinfo->mime_type != MIME_TEXT_ENRICHED) {
@@ -500,10 +536,32 @@ static void textview_add_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
                        charset = mimeinfo->charset;
                textview_write_body(textview, mimeinfo, fp, charset);
        }
-
+       
        gtk_stext_thaw(text);
 }
 
+static void textview_add_parts(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
+{
+       gint level;
+
+       g_return_if_fail(mimeinfo != NULL);
+       g_return_if_fail(fp != NULL);
+
+       level = mimeinfo->level;
+
+       for (;;) {
+               textview_add_part(textview, mimeinfo, fp);
+               if (mimeinfo->parent && mimeinfo->parent->content_type &&
+                   !strcasecmp(mimeinfo->parent->content_type,
+                               "multipart/alternative"))
+                       mimeinfo = mimeinfo->parent->next;
+               else
+                       mimeinfo = procmime_mimeinfo_next(mimeinfo);
+               if (!mimeinfo || mimeinfo->level <= level)
+                       break;
+       }
+}
+
 #define TEXT_INSERT(str) \
        gtk_stext_insert(text, textview->msgfont, NULL, NULL, str, -1)
 
@@ -516,7 +574,7 @@ void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
        textview_set_font(textview, NULL);
        text = GTK_STEXT(textview->text);
        textview_clear(textview);
-
+       
        gtk_stext_freeze(text);
 
        TEXT_INSERT(_("To save this part, pop up the context menu with "));
@@ -526,6 +584,9 @@ void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
        TEXT_INSERT(_("To display this part as a text message, select "));
        TEXT_INSERT(_("`Display as text', or press `t' key.\n\n"));
 
+       TEXT_INSERT(_("To display this part as an image, select "));
+       TEXT_INSERT(_("`Display image', or press `i' key.\n\n"));
+
        TEXT_INSERT(_("To open this part with external program, select "));
        TEXT_INSERT(_("`Open' or `Open with...', "));
        TEXT_INSERT(_("or double-click, or click the center button, "));
@@ -554,7 +615,7 @@ void textview_show_signature_part(TextView *textview, MimeInfo *partinfo)
        } else {
                TEXT_INSERT(partinfo->sigstatus_full);
        }
-
+               
        gtk_stext_thaw(text);
 }
 #endif /* USE_GPGME */
@@ -571,7 +632,11 @@ static void textview_write_body(TextView *textview, MimeInfo *mimeinfo,
        conv = conv_code_converter_new(charset);
 
        tmpfp = procmime_decode_content(NULL, fp, mimeinfo);
+       
+       textview->is_in_signature = FALSE;
+
        if (tmpfp) {
+               
                if (mimeinfo->mime_type == MIME_TEXT_HTML)
                        textview_show_html(textview, tmpfp, conv);
                else if (mimeinfo->mime_type == MIME_TEXT_ENRICHED)
@@ -620,6 +685,7 @@ static void textview_show_html(TextView *textview, FILE *fp,
                        textview_write_line(textview, str, NULL);
                }
        }
+       
        html_parser_destroy(parser);
 }
 
@@ -628,7 +694,6 @@ static void textview_show_ertf(TextView *textview, FILE *fp,
 {
        ERTFParser *parser;
        gchar *str;
-       gchar* url = NULL;
 
        parser = ertf_parser_new(fp, conv);
        g_return_if_fail(parser != NULL);
@@ -636,6 +701,7 @@ static void textview_show_ertf(TextView *textview, FILE *fp,
        while ((str = ertf_parse(parser)) != NULL) {
                textview_write_line(textview, str, NULL);
        }
+       
        ertf_parser_destroy(parser);
 }
 
@@ -688,7 +754,7 @@ static gchar *make_uri_string(const gchar *bp, const gchar *ep)
         (ch) > 32   && \
         (ch) != 127 && \
         !isspace(ch) && \
-        !strchr("()<>\"", (ch)))
+        !strchr("(),;<>\"", (ch)))
 
 /* alphabet and number within 7bit ASCII */
 #define IS_ASCII_ALNUM(ch)     (isascii(ch) && isalnum(ch))
@@ -974,6 +1040,12 @@ static void textview_write_link(TextView *textview, const gchar *url,
     }
 #endif
 
+    if (!conv || conv_convert(conv, buf, sizeof(buf), str) < 0)
+       strncpy2(buf, str, sizeof(buf));
+
+    strcrchomp(buf);
+    gtk_stext_insert(text, textview->msgfont, NULL, NULL, " ", 1);
     /* this part is based on the code in make_clickable_parts */
     if (prefs_common.enable_color) {
        link_color = &uri_color;
@@ -981,8 +1053,8 @@ static void textview_write_link(TextView *textview, const gchar *url,
     uri = g_new(RemoteURI, 1);
     uri->uri = g_strdup(url);
     uri->start = gtk_stext_get_point(text);
-    gtk_stext_insert(text, textview->msgfont, link_color, NULL, buf,
-                   strlen(buf));
+    gtk_stext_insert(text, textview->msgfont, link_color, NULL, str,
+                   strlen(str));
     uri->end = gtk_stext_get_point(text);
     textview->uri_list = g_slist_append(textview->uri_list, uri);
 }
@@ -1018,8 +1090,9 @@ static void textview_write_line(TextView *textview, const gchar *str,
           >, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
           Up to 3 levels of quotations are detected, and each
           level is colored using a different color. */
-       if (prefs_common.enable_color && strchr(buf, '>')) {
-               quotelevel = get_quote_level(buf);
+       if (prefs_common.enable_color 
+           && line_has_quote_char(buf, prefs_common.quote_chars)) {
+               quotelevel = get_quote_level(buf, prefs_common.quote_chars);
 
                /* set up the correct foreground color */
                if (quotelevel > 2) {
@@ -1036,6 +1109,11 @@ static void textview_write_line(TextView *textview, const gchar *str,
        else
                fg_color = &quote_colors[quotelevel];
 
+       if (prefs_common.enable_color && (strcmp(buf,"-- \n") == 0 || textview->is_in_signature)) {
+               fg_color = &signature_color;
+               textview->is_in_signature = TRUE;
+       }
+       
        if (prefs_common.head_space && spacingfont && buf[0] != '\n')
                gtk_stext_insert(text, spacingfont, NULL, NULL, " ", 1);
 
@@ -1058,6 +1136,9 @@ void textview_clear(TextView *textview)
 
        textview_uri_list_remove_all(textview->uri_list);
        textview->uri_list = NULL;
+
+       textview->body_pos = 0;
+       textview->cur_pos  = 0;
 }
 
 void textview_destroy(TextView *textview)
@@ -1258,9 +1339,10 @@ static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
                        header = g_ptr_array_index(headers, i);
                        g_ptr_array_add(sorted_headers, header);
                }
-       }
+               g_ptr_array_free(headers, TRUE);
+       } else
+               procheader_header_array_destroy(headers);
 
-       g_ptr_array_free(headers, FALSE);
 
        return sorted_headers;
 }
@@ -1341,17 +1423,18 @@ gboolean textview_search_string(TextView *textview, const gchar *str,
                if (text_len - pos < len) break;
                if (gtkut_stext_match_string(text, pos, wcs, len, case_sens)
                    == TRUE) {
+                       gtk_widget_hide(GTK_WIDGET(textview->scrolledwin));
                        gtk_editable_set_position(GTK_EDITABLE(text),
                                                  pos + len);
                        gtk_editable_select_region(GTK_EDITABLE(text),
                                                   pos, pos + len);
+                       gtk_widget_show(GTK_WIDGET(textview->scrolledwin));
                        textview_set_position(textview, pos + len);
                        found = TRUE;
                        break;
                }
                if (text_len - pos == len) break;
        }
-
        g_free(wcs);
        return found;
 }
@@ -1613,6 +1696,10 @@ static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
                textview_scroll_one_line(textview,
                                         (event->state & GDK_MOD1_MASK) != 0);
                break;
+       case GDK_Delete:
+               if (summaryview)
+                       summary_pass_key_press_event(summaryview, event);
+               break;
        case GDK_n:
        case GDK_N:
        case GDK_p:
@@ -1620,7 +1707,8 @@ static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
        case GDK_y:
        case GDK_t:
        case GDK_l:
-               if (messageview->type == MVIEW_MIME) {
+               if (messageview->type == MVIEW_MIME &&
+                   textview == messageview->mimeview->textview) {
                        KEY_PRESS_EVENT_STOP();
                        mimeview_pass_key_press_event(messageview->mimeview,
                                                      event);
@@ -1628,14 +1716,34 @@ static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
                }
                /* fall through */
        default:
-               if (summaryview)
-                       summary_pass_key_press_event(summaryview, event);
+               if (summaryview &&
+                   event->window != messageview->mainwin->window->window) {
+                       GdkEventKey tmpev = *event;
+
+                       tmpev.window = messageview->mainwin->window->window;
+                       KEY_PRESS_EVENT_STOP();
+                       gtk_widget_event(messageview->mainwin->window,
+                                        (GdkEvent *)&tmpev);
+               }
                break;
        }
 
        return TRUE;
 }
 
+static gint show_url_timeout_cb(gpointer data)
+{
+       TextView *textview = (TextView *)data;
+       
+       if (textview->messageview->mainwin)
+               if (textview->show_url_msgid)
+                       gtk_statusbar_remove(GTK_STATUSBAR(
+                               textview->messageview->mainwin->statusbar),
+                               textview->messageview->mainwin->folderview_cid,
+                               textview->show_url_msgid);
+               return FALSE;
+}
+
 static gint textview_button_pressed(GtkWidget *widget, GdkEventButton *event,
                                    TextView *textview)
 {
@@ -1651,7 +1759,7 @@ static gint textview_button_released(GtkWidget *widget, GdkEventButton *event,
                gtk_editable_get_position(GTK_EDITABLE(textview->text));
 
        if (event && 
-           ((event->button == 1 && textview->last_buttonpress == GDK_2BUTTON_PRESS)
+           ((event->button == 1)
             || event->button == 2 || event->button == 3)) {
                GSList *cur;
 
@@ -1667,10 +1775,28 @@ static gint textview_button_released(GtkWidget *widget, GdkEventButton *event,
 
                        if (textview->cur_pos >= uri->start &&
                            textview->cur_pos <  uri->end) {
+                               /* single click: display url in statusbar */
+                               if (event->button == 1 && textview->last_buttonpress != GDK_2BUTTON_PRESS) {
+                                       if (textview->messageview->mainwin) {
+                                               if (textview->show_url_msgid) {
+                                                       gtk_timeout_remove(textview->show_url_timeout_tag);
+                                                       gtk_statusbar_remove(GTK_STATUSBAR(
+                                                               textview->messageview->mainwin->statusbar),
+                                                               textview->messageview->mainwin->folderview_cid,
+                                                               textview->show_url_msgid);
+                                                       textview->show_url_msgid = 0;
+                                               }
+                                               textview->show_url_msgid = gtk_statusbar_push(
+                                                               GTK_STATUSBAR(textview->messageview->mainwin->statusbar),
+                                                               textview->messageview->mainwin->folderview_cid,
+                                                               uri->uri);
+                                               textview->show_url_timeout_tag = gtk_timeout_add( 4000, show_url_timeout_cb, textview );
+                                               gtkut_widget_wait_for_draw(textview->messageview->mainwin->hbox_stat);
+                                       }
+                               } else
                                if (!g_strncasecmp(uri->uri, "mailto:", 7)) {
                                        if (event->button == 3) {
                                                gchar *fromname, *fromaddress;
-                                               GdkEventButton tmpev;   
                                                
                                                /* extract url */
                                                fromaddress = g_strdup(uri->uri + 7);
@@ -1694,10 +1820,20 @@ static gint textview_button_released(GtkWidget *widget, GdkEventButton *event,
                                                        if (folder_item->prefs && folder_item->prefs->enable_default_account)
                                                                account = account_find_from_id(folder_item->prefs->default_account);
                                                }
-                                               compose_new_with_recipient
-                                                       (account, uri->uri + 7);
+                                               compose_new(account, uri->uri + 7, NULL);
                                        }
-                               } else {
+                               } else 
+#if USE_GPGME
+                               if (!g_strncasecmp(uri->uri, "pgp:", 4)) {
+                                       GtkAdjustment *pos = gtk_scrolled_window_get_vadjustment(
+                                                               GTK_SCROLLED_WINDOW(textview->scrolledwin));
+                                       gfloat vpos = pos->value;
+                                       mimeview_check_signature(textview->messageview->mimeview);
+                                       /* scroll back where we were */
+                                       gtk_adjustment_set_value(pos, vpos);
+                               } else
+#endif
+                               {
                                        open_uri(uri->uri,
                                                 prefs_common.uri_cmd);
                                }