make the progress window more responsive when importing mbox file
[claws.git] / src / mbox.c
index 606663f574fcfc77a204c1ca49687912004b2155..faa63d55ca727068e33707e3a7d54cd867bedb3f 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 1999-2015 Hiroyuki Yamamoto and the Claws Mail team
+ * Copyright (C) 1999-2020 the Claws Mail team and Hiroyuki Yamamoto
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -23,7 +23,6 @@
 #endif
 
 
-#define _GNU_SOURCE
 #include <stdio.h>
 
 #ifdef USE_PTHREAD
 #include "filtering.h"
 #include "alertpanel.h"
 #include "statusbar.h"
+#include "file-utils.h"
 
 #define MESSAGEBUFSIZE 8192
 
-#ifdef HAVE_FGETS_UNLOCKED
-#define SC_FGETS fgets_unlocked
-#define SC_FPUTS fputs_unlocked
-#define SC_FPUTC fputc_unlocked
-#else
-#define SC_FGETS fgets
-#define SC_FPUTS fputs
-#define SC_FPUTC fputc
-#endif
-
 #define FPUTS_TO_TMP_ABORT_IF_FAIL(s) \
 { \
        lines++; \
-       if (fputs(s, tmp_fp) == EOF) { \
+       if (claws_fputs(s, tmp_fp) == EOF) { \
                g_warning("can't write to temporary file"); \
-               fclose(tmp_fp); \
-               fclose(mbox_fp); \
+               claws_fclose(tmp_fp); \
+               claws_fclose(mbox_fp); \
                claws_unlink(tmp_file); \
                g_free(tmp_file); \
                return -1; \
@@ -96,30 +86,37 @@ gint proc_mbox(FolderItem *dest, const gchar *mbox, gboolean apply_filter,
        GSList *to_filter = NULL, *filtered = NULL, *unfiltered = NULL, *cur, *to_add = NULL;
        gboolean printed = FALSE;
        FolderItem *dropfolder;
+       GStatBuf src_stat;
 
        cm_return_val_if_fail(dest != NULL, -1);
        cm_return_val_if_fail(mbox != NULL, -1);
 
        debug_print("Getting messages from %s into %s...\n", mbox, dest->path);
 
-       if ((mbox_fp = g_fopen(mbox, "rb")) == NULL) {
-               FILE_OP_ERROR(mbox, "fopen");
+       if (g_stat(mbox, &src_stat) < 0) {
+               FILE_OP_ERROR(mbox, "g_stat");
+               alertpanel_error(_("Could not stat mbox file:\n%s\n"), mbox);
+               return -1;
+       }
+
+       if ((mbox_fp = claws_fopen(mbox, "rb")) == NULL) {
+               FILE_OP_ERROR(mbox, "claws_fopen");
                alertpanel_error(_("Could not open mbox file:\n%s\n"), mbox);
                return -1;
        }
 
        /* ignore empty lines on the head */
        do {
-               if (fgets(buf, sizeof(buf), mbox_fp) == NULL) {
+               if (claws_fgets(buf, sizeof(buf), mbox_fp) == NULL) {
                        g_warning("can't read mbox file.");
-                       fclose(mbox_fp);
+                       claws_fclose(mbox_fp);
                        return -1;
                }
        } while (buf[0] == '\n' || buf[0] == '\r');
 
        if (strncmp(buf, "From ", 5) != 0) {
                g_warning("invalid mbox format: %s", mbox);
-               fclose(mbox_fp);
+               claws_fclose(mbox_fp);
                return -1;
        }
 
@@ -137,20 +134,22 @@ gint proc_mbox(FolderItem *dest, const gchar *mbox, gboolean apply_filter,
                gint empty_lines;
                gint msgnum;
                
-               if (msgs > 0 && msgs%500 == 0) {
+               if (msgs%10 == 0) {
+                       long cur_offset_mb = ftell(mbox_fp) / (1024 * 1024);
                        if (printed)
                                statusbar_pop_all();
                        statusbar_print_all(
-                                       ngettext("Importing from mbox... (%d mail imported)",
-                                               "Importing from mbox... (%d mails imported)", msgs), msgs);
+                                       ngettext("Importing from mbox... (%ld MB imported)",
+                                               "Importing from mbox... (%ld MB imported)", cur_offset_mb), cur_offset_mb);
+                       statusbar_progress_all(cur_offset_mb, src_stat.st_size / (1024*1024), 1);
                        printed=TRUE;
                        GTK_EVENTS_FLUSH();
                }
        
-               if ((tmp_fp = g_fopen(tmp_file, "wb")) == NULL) {
-                       FILE_OP_ERROR(tmp_file, "fopen");
+               if ((tmp_fp = claws_fopen(tmp_file, "wb")) == NULL) {
+                       FILE_OP_ERROR(tmp_file, "claws_fopen");
                        g_warning("can't open temporary file");
-                       fclose(mbox_fp);
+                       claws_fclose(mbox_fp);
                        g_free(tmp_file);
                        return -1;
                }
@@ -162,7 +161,7 @@ gint proc_mbox(FolderItem *dest, const gchar *mbox, gboolean apply_filter,
                lines = 0;
 
                /* process all lines from mboxrc file */
-               while (fgets(buf, sizeof(buf), mbox_fp) != NULL) {
+               while (claws_fgets(buf, sizeof(buf), mbox_fp) != NULL) {
                        int offset;
 
                        /* eat empty lines */
@@ -174,7 +173,7 @@ gint proc_mbox(FolderItem *dest, const gchar *mbox, gboolean apply_filter,
                        /* From separator or quoted From */
                        offset = 0;
                        /* detect leading '>' char(s) */
-                       while ((buf[offset] == '>')) {
+                       while (buf[offset] == '>') {
                                offset++;
                        }
                        if (!strncmp(buf+offset, "From ", 5)) {
@@ -218,22 +217,22 @@ gint proc_mbox(FolderItem *dest, const gchar *mbox, gboolean apply_filter,
                }
 
                /* more emails to expect? */
-               more = !feof(mbox_fp);
+               more = !claws_feof(mbox_fp);
 
                /* warn if email part is empty (it's the minimum check 
                   we can do */
                if (lines == 0) {
                        g_warning("malformed mbox: %s: message %d is empty", mbox, msgs);
-                       fclose(tmp_fp);
-                       fclose(mbox_fp);
+                       claws_fclose(tmp_fp);
+                       claws_fclose(mbox_fp);
                        claws_unlink(tmp_file);
                        return -1;
                }
 
-               if (fclose(tmp_fp) == EOF) {
-                       FILE_OP_ERROR(tmp_file, "fclose");
+               if (claws_safe_fclose(tmp_fp) == EOF) {
+                       FILE_OP_ERROR(tmp_file, "claws_fclose");
                        g_warning("can't write to temporary file");
-                       fclose(mbox_fp);
+                       claws_fclose(mbox_fp);
                        claws_unlink(tmp_file);
                        g_free(tmp_file);
                        return -1;
@@ -241,7 +240,7 @@ gint proc_mbox(FolderItem *dest, const gchar *mbox, gboolean apply_filter,
 
                if (apply_filter) {
                        if ((msgnum = folder_item_add_msg(dropfolder, tmp_file, NULL, TRUE)) < 0) {
-                               fclose(mbox_fp);
+                               claws_fclose(mbox_fp);
                                claws_unlink(tmp_file);
                                g_free(tmp_file);
                                return -1;
@@ -265,8 +264,10 @@ gint proc_mbox(FolderItem *dest, const gchar *mbox, gboolean apply_filter,
                msgs++;
        } while (more);
 
-       if (printed)
+       if (printed) {
                statusbar_pop_all();
+               statusbar_progress_all(0, 0, 0);
+       }
 
        if (apply_filter) {
 
@@ -302,7 +303,7 @@ gint proc_mbox(FolderItem *dest, const gchar *mbox, gboolean apply_filter,
        folder_item_update_thaw();
        
        g_free(tmp_file);
-       fclose(mbox_fp);
+       claws_fclose(mbox_fp);
        debug_print("%d messages found.\n", msgs);
 
        return msgs;
@@ -319,8 +320,8 @@ gint lock_mbox(const gchar *base, LockType type)
                FILE *lockfp;
 
                lockfile = g_strdup_printf("%s.%d", base, getpid());
-               if ((lockfp = g_fopen(lockfile, "wb")) == NULL) {
-                       FILE_OP_ERROR(lockfile, "fopen");
+               if ((lockfp = claws_fopen(lockfile, "wb")) == NULL) {
+                       FILE_OP_ERROR(lockfile, "claws_fopen");
                        g_warning("can't create lock file '%s', use 'flock' instead of 'file' if possible.", lockfile);
                        g_free(lockfile);
                        return -1;
@@ -329,12 +330,12 @@ gint lock_mbox(const gchar *base, LockType type)
                if (fprintf(lockfp, "%d\n", getpid()) < 0) {
                        FILE_OP_ERROR(lockfile, "fprintf");
                        g_free(lockfile);
-                       fclose(lockfp);
+                       claws_fclose(lockfp);
                        return -1;
                }
 
-               if (fclose(lockfp) == EOF) {
-                       FILE_OP_ERROR(lockfile, "fclose");
+               if (claws_safe_fclose(lockfp) == EOF) {
+                       FILE_OP_ERROR(lockfile, "claws_fclose");
                        g_free(lockfile);
                        return -1;
                }
@@ -484,8 +485,8 @@ gint copy_mbox(gint srcfd, const gchar *dest)
                return -1;
        }
 
-       if ((dest_fp = g_fopen(dest, "wb")) == NULL) {
-               FILE_OP_ERROR(dest, "fopen");
+       if ((dest_fp = claws_fopen(dest, "wb")) == NULL) {
+               FILE_OP_ERROR(dest, "claws_fopen");
                return -1;
        }
 
@@ -495,9 +496,9 @@ gint copy_mbox(gint srcfd, const gchar *dest)
        }
 
        while ((n_read = read(srcfd, buf, sizeof(buf))) > 0) {
-               if (fwrite(buf, 1, n_read, dest_fp) < n_read) {
+               if (claws_fwrite(buf, 1, n_read, dest_fp) < n_read) {
                        g_warning("writing to %s failed.", dest);
-                       fclose(dest_fp);
+                       claws_fclose(dest_fp);
                        claws_unlink(dest);
                        return -1;
                }
@@ -509,8 +510,8 @@ gint copy_mbox(gint srcfd, const gchar *dest)
                err = TRUE;
        }
 
-       if (fclose(dest_fp) == EOF) {
-               FILE_OP_ERROR(dest, "fclose");
+       if (claws_safe_fclose(dest_fp) == EOF) {
+               FILE_OP_ERROR(dest, "claws_fclose");
                err = TRUE;
        }
 
@@ -526,12 +527,12 @@ void empty_mbox(const gchar *mbox)
 {
        FILE *fp;
 
-       if ((fp = g_fopen(mbox, "wb")) == NULL) {
-               FILE_OP_ERROR(mbox, "fopen");
+       if ((fp = claws_fopen(mbox, "wb")) == NULL) {
+               FILE_OP_ERROR(mbox, "claws_fopen");
                g_warning("can't truncate mailbox to zero.");
                return;
        }
-       fclose(fp);
+       claws_safe_fclose(fp);
 }
 
 gint export_list_to_mbox(GSList *mlist, const gchar *mbox)
@@ -548,37 +549,30 @@ gint export_list_to_mbox(GSList *mlist, const gchar *mbox)
        if (g_file_test(mbox, G_FILE_TEST_EXISTS) == TRUE) {
                if (alertpanel_full(_("Overwrite mbox file"),
                                        _("This file already exists. Do you want to overwrite it?"),
-                                       GTK_STOCK_CANCEL, _("Overwrite"), NULL, FALSE,
-                                       NULL, ALERT_WARNING, G_ALERTDEFAULT)
+                                       GTK_STOCK_CANCEL, _("Overwrite"), NULL,
+                                       ALERTFOCUS_FIRST, FALSE, NULL, ALERT_WARNING)
                                != G_ALERTALTERNATE) {
                        return -2;
                }
        }
 
-       if ((mbox_fp = g_fopen(mbox, "wb")) == NULL) {
-               FILE_OP_ERROR(mbox, "fopen");
+       if ((mbox_fp = claws_fopen(mbox, "wb")) == NULL) {
+               FILE_OP_ERROR(mbox, "claws_fopen");
                alertpanel_error(_("Could not create mbox file:\n%s\n"), mbox);
                return -1;
        }
 
-#ifdef HAVE_FGETS_UNLOCKED
-       flockfile(mbox_fp);
-#endif
-
        statusbar_print_all(_("Exporting to mbox..."));
        for (cur = mlist; cur != NULL; cur = cur->next) {
                int len;
                gchar buft[BUFFSIZE];
                msginfo = (MsgInfo *)cur->data;
 
-               msg_fp = procmsg_open_message(msginfo);
+               msg_fp = procmsg_open_message(msginfo, TRUE);
                if (!msg_fp) {
                        continue;
                }
 
-#ifdef HAVE_FGETS_UNLOCKED
-               flockfile(msg_fp);
-#endif
                strncpy2(buf,
                         msginfo->from ? msginfo->from :
                         cur_account && cur_account->address ?
@@ -589,41 +583,32 @@ gint export_list_to_mbox(GSList *mlist, const gchar *mbox)
                if (fprintf(mbox_fp, "From %s %s",
                        buf, ctime_r(&msginfo->date_t, buft)) < 0) {
                        err = -1;
-#ifdef HAVE_FGETS_UNLOCKED
-                       funlockfile(msg_fp);
-#endif
-                       fclose(msg_fp);
+                       claws_fclose(msg_fp);
                        goto out;
                }
 
                buf[0] = '\0';
                
                /* write email to mboxrc */
-               while (SC_FGETS(buf, sizeof(buf), msg_fp) != NULL) {
+               while (claws_fgets(buf, sizeof(buf), msg_fp) != NULL) {
                        /* quote any From, >From, >>From, etc., according to mbox format specs */
                        int offset;
 
                        offset = 0;
                        /* detect leading '>' char(s) */
-                       while ((buf[offset] == '>')) {
+                       while (buf[offset] == '>') {
                                offset++;
                        }
                        if (!strncmp(buf+offset, "From ", 5)) {
-                               if (SC_FPUTC('>', mbox_fp) == EOF) {
+                               if (claws_fputc('>', mbox_fp) == EOF) {
                                        err = -1;
-#ifdef HAVE_FGETS_UNLOCKED
-                                       funlockfile(msg_fp);
-#endif
-                                       fclose(msg_fp);
+                                       claws_fclose(msg_fp);
                                        goto out;
                                }
                        }
-                       if (SC_FPUTS(buf, mbox_fp) == EOF) {
+                       if (claws_fputs(buf, mbox_fp) == EOF) {
                                err = -1;
-#ifdef HAVE_FGETS_UNLOCKED
-                               funlockfile(msg_fp);
-#endif
-                               fclose(msg_fp);
+                               claws_fclose(msg_fp);
                                goto out;
                        }
                }
@@ -633,31 +618,22 @@ gint export_list_to_mbox(GSList *mlist, const gchar *mbox)
                if (len > 0) {
                        len--;
                        if ((buf[len] != '\n') && (buf[len] != '\r')) {
-                               if (SC_FPUTC('\n', mbox_fp) == EOF) {
+                               if (claws_fputc('\n', mbox_fp) == EOF) {
                                        err = -1;
-#ifdef HAVE_FGETS_UNLOCKED
-                                       funlockfile(msg_fp);
-#endif
-                                       fclose(msg_fp);
+                                       claws_fclose(msg_fp);
                                        goto out;
                                }
                        }
                }
 
                /* add a trailing empty line */
-               if (SC_FPUTC('\n', mbox_fp) == EOF) {
+               if (claws_fputc('\n', mbox_fp) == EOF) {
                        err = -1;
-#ifdef HAVE_FGETS_UNLOCKED
-                       funlockfile(msg_fp);
-#endif
-                       fclose(msg_fp);
+                       claws_fclose(msg_fp);
                        goto out;
                }
 
-#ifdef HAVE_FGETS_UNLOCKED
-               funlockfile(msg_fp);
-#endif
-               fclose(msg_fp);
+               claws_safe_fclose(msg_fp);
                statusbar_progress_all(msgs++,total, 500);
                if (msgs%500 == 0)
                        GTK_EVENTS_FLUSH();
@@ -667,10 +643,7 @@ out:
        statusbar_progress_all(0,0,0);
        statusbar_pop_all();
 
-#ifdef HAVE_FGETS_UNLOCKED
-       funlockfile(mbox_fp);
-#endif
-       fclose(mbox_fp);
+       claws_safe_fclose(mbox_fp);
 
        return err;
 }