path: root/mail/mail-vfolder.c

/*
  Copyright 2000 Helix Code Inc.

  Author: Michael Zucchi <notzed@helixcode.com>

  code for managing vfolders

  NOTE: dont run this through fucking indent.
*/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <bonobo.h>

#include "Evolution.h"
#include "evolution-storage.h"

#include "evolution-shell-component.h"
#include "folder-browser.h"
#include "mail-vfolder.h"
#include "mail-tools.h"
#include "mail-autofilter.h"

#include "camel/camel.h"

#include "filter/vfolder-context.h"
#include "filter/vfolder-editor.h"

#define d(x) x

struct _vfolder_info {
    char *name;
    char *query;
};

/* list of vfolders available */
static GList *available_vfolders = NULL;
static VfolderContext *context;
static EvolutionStorage *vfolder_storage;

/* GROSS HACK: for passing to other parts of the program */
EvolutionShellClient *global_shell_client = NULL;

/* more globals ... */
extern char *evolution_dir;
extern CamelSession *session;

static struct _vfolder_info *
vfolder_find(const char *name)
{
    GList *l = available_vfolders;
    struct _vfolder_info *info;

    while (l) {
        info = l->data;
        if (!strcmp(info->name, name))
            return info;
        l = g_list_next(l);
    }
    return NULL;
}

/* go through the list of what we have, what we want, and make
   them match, deleting/reconfiguring as required */
static void
vfolder_refresh(void)
{
    GList *l;
    GList *head = NULL; /* processed list */
    struct _vfolder_info *info;
    FilterRule *rule;
    GString *expr = g_string_new("");
    char *uri, *path;

    rule = NULL;
    while ( (rule = rule_context_next_rule((RuleContext *)context, rule, NULL)) ) {
        info = vfolder_find(rule->name);
        g_string_truncate(expr, 0);
        filter_rule_build_code(rule, expr);
        if (info) {
            available_vfolders = g_list_remove(available_vfolders, info);

            /* check if the rule has changed ... otherwise, leave it */
            if (strcmp(expr->str, info->query)) {
                d(printf("Must reconfigure vfolder with new rule?\n"));
                g_free(info->query);
                info->query = g_strdup(expr->str);

                uri = g_strdup_printf("vfolder:%s", info->name);
                path = g_strdup_printf("/%s", info->name);
                evolution_storage_removed_folder(vfolder_storage, path);
                evolution_storage_new_folder(vfolder_storage, path, g_basename(path),
                                 "mail", uri, info->name, FALSE);
                g_free(uri);
                g_free(path);
            }
        } else {
            info = g_malloc(sizeof(*info));
            info->name = g_strdup(rule->name);
            info->query = g_strdup(expr->str);
            d(printf("Adding new vfolder: %s %s\n", rule->name, expr->str));
            
            uri = g_strdup_printf("vfolder:%s", info->name);
            path = g_strdup_printf("/%s", info->name);
            evolution_storage_new_folder(vfolder_storage, path, g_basename(path),
                             "mail", uri, info->name, FALSE);
            g_free(uri);
            g_free(path);
        }
        head = g_list_append(head, info);
    }
    /* everything in available_vfolders are to be removed ... */
    l = available_vfolders;
    while (l) {
        info = l->data;
        d(printf("removing vfolders %s %s\n", info->name, info->query));
        path = g_strdup_printf("/%s", info->name);
        evolution_storage_removed_folder(vfolder_storage, path);
        g_free(path);
        g_free(info->name);
        g_free(info->query);
        l = g_list_next(l);
    }
    g_list_free(available_vfolders);
    available_vfolders = head;
    g_string_free(expr, TRUE);
}

void
vfolder_create_storage(EvolutionShellComponent *shell_component)
{
    EvolutionShellClient *shell_client;
    GNOME_Evolution_Shell corba_shell;
    EvolutionStorage *storage;
    char *user, *system;

    shell_client = evolution_shell_component_get_owner (shell_component);
    if (shell_client == NULL) {
        g_warning ("We have no shell!?");
        return;
    }
    global_shell_client = shell_client;

    corba_shell = bonobo_object_corba_objref (BONOBO_OBJECT (shell_client));
    
    storage = evolution_storage_new (_("VFolders"), NULL);
    if (evolution_storage_register_on_shell (storage, corba_shell) != EVOLUTION_STORAGE_OK) {
        g_warning ("Cannot register storage");
        return;
    }

    vfolder_storage = storage;

    user = g_strdup_printf ("%s/vfolders.xml", evolution_dir);
    system = g_strdup_printf("%s/evolution/vfoldertypes.xml", EVOLUTION_DATADIR);
    
    context = vfolder_context_new();
    printf("loading rules %s %s\n", system, user);
    if (rule_context_load((RuleContext *)context, system, user) != 0) {
        g_warning("cannot load vfolders: %s\n", ((RuleContext *)context)->error);
    }
    g_free(user);
    g_free(system);
    vfolder_refresh();
}

/* maps the shell's uri to the real vfolder uri and open the folder */
CamelFolder *
vfolder_uri_to_folder(const char *uri, CamelException *ex)
{
    void camel_vee_folder_add_folder(CamelFolder *, CamelFolder *);

    struct _vfolder_info *info;
    char *storeuri, *foldername;
    VfolderRule *rule;
    CamelFolder *folder = NULL, *sourcefolder;
    const char *sourceuri;
    int sources;

    if (strncmp (uri, "vfolder:", 8))
        return NULL;

    info = vfolder_find(uri+8);
    if (info == NULL) {
        g_warning("Shell trying to open unknown vFolder: %s", uri);
        return NULL;
    }

    d(printf("Opening vfolder: %s\n", uri));

    rule = (VfolderRule *)rule_context_find_rule((RuleContext *)context, info->name, NULL);

    storeuri = g_strdup_printf("vfolder:%s/vfolder/%s", evolution_dir, info->name);
    foldername = g_strdup_printf("mbox?%s", info->query);

    /* we dont have indexing on vfolders */
    folder = mail_tool_get_folder_from_urlname (storeuri, foldername, CAMEL_STORE_FOLDER_CREATE, ex);

    sourceuri = NULL;
    sources = 0;
    while ( (sourceuri = vfolder_rule_next_source(rule, sourceuri)) ) {
        d(printf("adding vfolder source: %s\n", sourceuri));
        sourcefolder = mail_tool_uri_to_folder (sourceuri, ex);
        printf("source folder = %p\n", sourcefolder);
        if (sourcefolder) {
            sources++;
            mail_tool_camel_lock_up ();
            camel_vee_folder_add_folder(folder, sourcefolder);
            mail_tool_camel_lock_down ();
        } else {
            /* we'll just silently ignore now-missing sources */
            camel_exception_clear(ex);
        }
    }
    /* if we didn't have any sources, just use Inbox as the default */
    if (sources == 0) {
        char *defaulturi;

        defaulturi = g_strdup_printf("file://%s/local/Inbox", evolution_dir);
        d(printf("No sources configured/found, using default: %s\n", defaulturi));
        sourcefolder = mail_tool_uri_to_folder (defaulturi, ex);
        g_free(defaulturi);
        if (sourcefolder) {
            mail_tool_camel_lock_up ();
            camel_vee_folder_add_folder(folder, sourcefolder);
            mail_tool_camel_lock_down ();
        }
    }

    g_free(foldername);
    g_free(storeuri);

    return folder;
}

static void
vfolder_editor_clicked(GtkWidget *w, int button, void *data)
{
    if (button == 0) {
        char *user;

        user = g_strdup_printf("%s/vfolders.xml", evolution_dir);
        rule_context_save((RuleContext *)context, user);
        g_free(user);
        vfolder_refresh();
    }
    if (button != -1) {
        gnome_dialog_close((GnomeDialog *)w);
    }
}

void
vfolder_edit(void)
{
    GtkWidget *w;

    w = vfolder_editor_construct(context);
    gtk_signal_connect((GtkObject *)w, "clicked", vfolder_editor_clicked, NULL);
    gtk_widget_show(w);
}

static void
new_rule_clicked(GtkWidget *w, int button, void *data)
{
    if (button == 0) {
        char *user;
        FilterRule *rule = gtk_object_get_data((GtkObject *)w, "rule");

        gtk_object_ref((GtkObject *)rule);
        rule_context_add_rule((RuleContext *)context, rule);
        user = g_strdup_printf("%s/vfolders.xml", evolution_dir);
        rule_context_save((RuleContext *)context, user);
        g_free(user);
        vfolder_refresh();
    }
    if (button != -1) {
        gnome_dialog_close((GnomeDialog *)w);
    }
}

FilterPart *
vfolder_create_part(const char *name)
{
    return rule_context_create_part((RuleContext *)context, name);
}

/* adds a rule with a gui */
void
vfolder_gui_add_rule(VfolderRule *rule)
{
    GtkWidget *w;
    GnomeDialog *gd;

    w = filter_rule_get_widget((FilterRule *)rule, (RuleContext *)context);
    gd = (GnomeDialog *)gnome_dialog_new(_("New VFolder"),
                         GNOME_STOCK_BUTTON_OK,
                         GNOME_STOCK_BUTTON_CANCEL,
                         NULL);
    gtk_window_set_policy(GTK_WINDOW(gd), FALSE, TRUE, FALSE);
    gtk_box_pack_start((GtkBox *)gd->vbox, w, FALSE, TRUE, 0);
    gtk_widget_show((GtkWidget *)gd);
    gtk_object_set_data_full((GtkObject *)gd, "rule", rule, (GtkDestroyNotify)gtk_object_unref);
    gtk_signal_connect((GtkObject *)gd, "clicked", new_rule_clicked, NULL);
    gtk_widget_show((GtkWidget *)gd);
}

void
vfolder_gui_add_from_message(CamelMimeMessage *msg, int flags, const char *source)
{
    VfolderRule *rule;

    rule = (VfolderRule*)vfolder_rule_from_message(context, msg, flags, source);
    vfolder_gui_add_rule(rule);
}