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path: root/shell/e-config-upgrade.c
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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-upgrade.c - upgrade previous config versions
 *
 * Copyright (C) 2003 Ximian, Inc.
 *
 * Authors: Michael Zucchi <notzed@ximian.com>
 *      Jeffery Stedfast <fejj@ximian.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 */

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>

#include <stdio.h>
#include <errno.h>
#include <regex.h>
#include <string.h>

#include <glib.h>
#include <gconf/gconf.h>
#include <gconf/gconf-client.h>

#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
#include <libxml/tree.h>

#include "e-config-upgrade.h"

#define d(x) x

/* output revision of configuration */
#define CONF_MAJOR (1)
#define CONF_MINOR (3)
#define CONF_REVISION (0)

/* major/minor/revision of existing config */
static unsigned int major = -1;
static unsigned int minor = -1;
static unsigned int revision = -1;

/* 1.0 details, if required */
static GHashTable *accounts_1_0 = NULL;
static GHashTable *accounts_name_1_0 = NULL;

/* where files are stored */
static const char *evolution_dir;

static char hexnib[256] = {
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
     0, 1, 2, 3, 4, 5, 6, 7, 8, 9,-1,-1,-1,-1,-1,-1,
    -1,10,11,12,13,14,15,16,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,10,11,12,13,14,15,16,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
};

static char *hex_decode(const char *val)
{
    char *o, *res;
    const unsigned char *p = (const unsigned char *)val;
    
    o = res = g_malloc(strlen(val)/2 + 1);
    for (p=val;(p[0] && p[1]);p+=2)
        *o++ = (hexnib[p[0]] << 4) | hexnib[p[1]];
    *o = 0;

    return res;
}

static char *url_decode(const char *val)
{
    char *o, *res, c;
    const unsigned char *p = (const unsigned char *)val;
    
    o = res = g_malloc(strlen(val) + 1);
    while (*p) {
        c = *p++;
        if (c == '%'
            && hexnib[p[0]] != -1 && hexnib[p[1]] != -1) {
            *o++ = (hexnib[p[0]] << 4) | hexnib[p[1]];
            p+=2;
        } else
            *o++ = c;
    }
    *o = 0;

    return res;
}

/* so we dont need camel, just copy here */
static int
camel_file_util_decode_uint32 (FILE *in, guint32 *dest)
{
        guint32 value = 0;
    int v;

        /* until we get the last byte, keep decoding 7 bits at a time */
        while ( ((v = fgetc (in)) & 0x80) == 0 && v!=EOF) {
                value |= v;
                value <<= 7;
        }
    if (v == EOF) {
        *dest = value >> 7;
        return -1;
    }
    *dest = value | (v & 0x7f);

        return 0;
}

static int
camel_file_util_decode_string (FILE *in, char **str)
{
    guint32 len;
    register char *ret;

    if (camel_file_util_decode_uint32 (in, &len) == -1) {
        *str = NULL;
        return -1;
    }

    len--;
    if (len > 65536) {
        *str = NULL;
        return -1;
    }

    ret = g_malloc (len+1);
    if (len > 0 && fread (ret, len, 1, in) != 1) {
        g_free (ret);
        *str = NULL;
        return -1;
    }

    ret[len] = 0;
    *str = ret;
    return 0;
}

/* For 1.0.8 conversion */

/* as much info as we have on a given account */
struct _account_info {
    char *name;
    char *uri;
    char *base_uri;
    union {
        struct {
            /* for imap */
            char *namespace;
            char *namespace_full;
            guint32 capabilities;
            GHashTable *folders;
            char dir_sep;
        } imap;
    } u;
};

struct _imap_folder_info {
    char *folder;
    /* encoded?  decoded?  canonicalised? */
    char dir_sep;
};

static char *parse_lsub(const char *lsub, char *dir_sep)
{
    static int comp;
    static regex_t pat;
    regmatch_t match[3];
    char *m = "^\\* LSUB \\([^)]*\\) \"?([^\" ]+)\"? \"?(.*)\"?$";

    if (!comp) {
        if (regcomp(&pat, m, REG_EXTENDED|REG_ICASE) == -1) {
            g_warning("reg comp '%s' failed: %s", m, g_strerror(errno));
            return NULL;
        }
        comp = 1;
    }

    if (regexec(&pat, lsub, 3, match, 0) == 0) {
        if (match[1].rm_so != -1 && match[2].rm_so != -1) {
            if (dir_sep)
                *dir_sep = (match[1].rm_eo - match[1].rm_so == 1) ? lsub[match[1].rm_so] : 0;
            return g_strndup(lsub + match[2].rm_so, match[2].rm_eo - match[2].rm_so);
        }
    }

    return NULL;
}

static int read_imap_storeinfo(struct _account_info *si)
{
    FILE *storeinfo;
    guint32 tmp;
    char *buf, *folder, dir_sep, *path, *name, *p;
    struct _imap_folder_info *fi;

    si->u.imap.folders = g_hash_table_new(g_str_hash, g_str_equal);

    /* get details from uri first */
    name = strstr(si->uri, ";override_namespace");
    if (name) {
        name = strstr(si->uri, ";namespace=");
        if (name) {
            char *end;

            name += strlen(";namespace=");
            if (*name == '\"') {
                name++;
                end = strchr(name, '\"');
            } else {
                end = strchr(name, ';');
            }

            if (end) {
                /* try get the dir_sep from the namespace */
                si->u.imap.namespace = g_strndup(name, end-name);

                p = si->u.imap.namespace;
                while ((dir_sep = *p++)) {
                    if (dir_sep < '0'
                        || (dir_sep > '9' && dir_sep < 'A')
                        || (dir_sep > 'Z' && dir_sep < 'a')
                        || (dir_sep > 'z')) {
                        si->u.imap.dir_sep = dir_sep;
                        break;
                    }
                    p++;
                }
            }
        }
    }

    /* now load storeinfo if it exists */
    path = g_build_filename(evolution_dir, "mail/imap", si->base_uri+7, "storeinfo", NULL);
    storeinfo = fopen(path, "r");
    g_free(path);
    if (storeinfo == NULL) {
        g_warning("could not find imap store info '%s'", path);
        return -1;
    }

    /* ignore version */
    camel_file_util_decode_uint32(storeinfo, &tmp);
    camel_file_util_decode_uint32(storeinfo, &si->u.imap.capabilities);
    g_free(si->u.imap.namespace);
    camel_file_util_decode_string (storeinfo, &si->u.imap.namespace);
    camel_file_util_decode_uint32 (storeinfo, &tmp);
    si->u.imap.dir_sep = tmp;
    /* strip trailing dir_sep or / */
    if (si->u.imap.namespace
        && (si->u.imap.namespace[strlen(si->u.imap.namespace)-1] == si->u.imap.dir_sep
        || si->u.imap.namespace[strlen(si->u.imap.namespace)-1] == '/')) {
        si->u.imap.namespace[strlen(si->u.imap.namespace)-1] = 0;
    }

    d(printf("namespace '%s' dir_sep '%c'\n", si->u.imap.namespace, si->u.imap.dir_sep?si->u.imap.dir_sep:'?'));

    while (camel_file_util_decode_string (storeinfo, &buf) == 0) {
        folder = parse_lsub(buf, &dir_sep);
        if (folder) {
            fi = g_malloc0(sizeof(*fi));
            fi->folder = folder;
            fi->dir_sep = dir_sep;
#if d(!)0
            printf(" add folder '%s' ", folder);
            if (dir_sep)
                printf("'%c'\n", dir_sep);
            else
                printf("NIL\n");
#endif
            g_hash_table_insert(si->u.imap.folders, fi->folder, fi);
        } else {
            g_warning("Could not parse LIST result '%s'\n", buf);
        }
    }
    fclose(storeinfo);

    return 0;
}

static char *get_base_uri(const char *val)
{
    const char *tmp;

    tmp = strchr(val, ':');
    if (tmp) {
        tmp++;
        if (strncmp(tmp, "//", 2) == 0)
            tmp += 2;
        tmp = strchr(tmp, '/');
    }

    if (tmp)
        return g_strndup(val, tmp-val);
    else
        return g_strdup(val);
}

static char *upgrade_uri(const char *uri)
{
    char *out = NULL;

    /* upgrades camel uri's */

    if (major <=1 && minor < 2) {
        if (strncmp(uri, "imap:", 5) == 0) {
            char *base_uri, dir_sep, *folder, *p;
            struct _account_info *ai;

            /* add namespace, canonicalise dir_sep to / */
            base_uri = get_base_uri(uri);
            ai = g_hash_table_lookup(accounts_1_0, base_uri);

            if (ai == NULL) {
                g_free(base_uri);
                return NULL;
            }

            dir_sep = ai->u.imap.dir_sep;
            if (dir_sep == 0) {
                /* no dir_sep listed, try get it from the namespace, if set */
                if (ai->u.imap.namespace != NULL) {
                    p = ai->u.imap.namespace;
                    while ((dir_sep = *p++)) {
                        if (dir_sep < '0'
                            || (dir_sep > '9' && dir_sep < 'A')
                            || (dir_sep > 'Z' && dir_sep < 'a')
                            || (dir_sep > 'z')) {
                            break;
                        }
                        p++;
                    }
                }
                
                /* give up ... */
                if (dir_sep == 0) {
                    g_free(base_uri);
                    return NULL;
                }
            }

            folder = g_strdup(uri + strlen(base_uri)+1);

            /* Add the namespace before the mailbox name, unless the mailbox is INBOX */
            if (ai->u.imap.namespace && strcmp(folder, "INBOX") != 0)
                out = g_strdup_printf("%s/%s/%s", base_uri, ai->u.imap.namespace, folder);
            else
                out = g_strdup_printf("%s/%s", base_uri, folder);

            p = out;
            while (*p) {
                if (*p == dir_sep)
                    *p = '/';
                p++;
            }

            g_free(folder);
            g_free(base_uri);
        } else if (strncmp(uri, "exchange:", 9) == 0) {
            char *base_uri, *folder, *p;

            /*  exchange://user@host/exchange/ * -> exchange://user@host/personal/ * */
            /*  Any url encoding (%xx) in the folder name is also removed */
            base_uri = get_base_uri(uri);
            uri += strlen(base_uri) + 1;
            if (strncmp(uri, "exchange/", 9) == 0) {
                folder = url_decode(uri+9);
                p = strchr(folder, '/');
                out = g_strdup_printf("%s/personal%s", base_uri, p?p:"/");
                g_free(folder);
            }
        } else if (strncmp(uri, "exchanget:", 10) == 0) {
            /* these should be converted in the accounts table when it is loaded */
            g_warning("exchanget: uri not converted: '%s'", uri);
        }
    }

    return out;
}

static char *upgrade_evolution_uri(const char *uri)
{
    char *out = NULL;

    if (!strcmp (uri, "evolution:/local/Inbox")) {
        return g_strdup("default:mail");
    } else if (!strcmp (uri, "evolution:/local/Calendar")) {
        return g_strdup("default:calendar");
    } else if (!strcmp (uri, "evolution:/local/Contacts")) {
        return g_strdup("default:contacts");
    } else if (!strcmp (uri, "evolution:/local/Tasks")) {
        return g_strdup("default:tasks");
    } if (!strncmp(uri, "evolution:/", 11)) {
        char *account, *tmp, *folder, *p;
        struct _account_info *ai;

        d(printf("convert url '%s'\n", uri));
        tmp = strchr(uri+11, '/');
        if (tmp == NULL)
            return NULL;

        folder = *tmp?tmp+1:tmp;
        account = g_strndup(uri+11, tmp-uri-11);
        d(printf("  looking for account '%s'\n", account));
        ai = g_hash_table_lookup(accounts_name_1_0, account);
        if (ai && !strncmp(ai->base_uri, "imap:", 5)) {
            /* Add namespace to evolution url's of imap accounts, if the account uses a namespace */
            d(printf("found account ... '%s', folder = '%s'\n", ai->name, folder));
            
            if (ai->u.imap.namespace && strcmp(folder, "INBOX") != 0)
                out = g_strdup_printf("evolution:/%s/%s/%s", account, ai->u.imap.namespace, folder);
            else
                out = g_strdup_printf("evolution:/%s/%s", account, folder);
            
            if (ai->u.imap.dir_sep) {
                p = out + strlen("evolution://") + strlen(account);
                while (*p) {
                    if (*p == ai->u.imap.dir_sep)
                        *p = '/';
                    p++;
                }
            }
        } else if (ai && !strncmp(ai->base_uri, "exchange:", 9)) {
            /* add personal to exchange url's */
            folder = url_decode(folder);
            out = g_strdup_printf("evolution:/%s/personal/%s", account, folder);
            g_free(folder);
        }
        g_free(account);
    }

    return out;
}

static char *upgrade_type(const char *type)
{
    char *res = NULL;

    /*
      <item type="ldap-contacts ...>
      to
      <item type="contacts/ldap ...>
    */

    if (strcmp(type, "ldap-contacts") == 0)
        res = g_strdup("contacts/ldap");

    return res;
}

enum {
    CONVERT_CONTENT,
    CONVERT_ARG,
};

struct _convert {
    int type;
    char *tag;
    char *arg;
    char *(*convert)(const char *val);
} convert_table [] = {
    /* fix evolution uri's in shortcuts file */
    { CONVERT_CONTENT, "item", NULL, upgrade_evolution_uri },
    /* ldap item/type's converted from ldap-contacts to contacts/ldap */
    { CONVERT_ARG,     "item", "type", upgrade_type },
    /* fix folder uri's in filters/vfolders */
    { CONVERT_ARG,     "folder", "uri", upgrade_uri },
};

#define CONVERT_SIZEOF (sizeof(convert_table)/sizeof(convert_table[0]))

static int upgrade_xml_1_0_rec(xmlNodePtr node)
{
    int i;
    struct _convert *ct;
    int scan = TRUE;
    int work = FALSE;
    char *txt, *newtxt;

    for (i=0;i<CONVERT_SIZEOF;i++) {
        ct = &convert_table[i];
        if (!strcmp(node->name, ct->tag)) {
            switch(ct->type) {
            case CONVERT_CONTENT:
                txt = xmlNodeGetContent(node);
                newtxt = ct->convert(txt);
                d(printf("Upgrade content '%s': '%s' -> '%s'\n", ct->tag, txt, newtxt?newtxt:"unchanged"));
                xmlFree(txt);
                if (newtxt) {
                    xmlNodeSetContent(node, newtxt);
                    g_free(newtxt);
                    work = TRUE;
                }
                scan = FALSE;
                break;
            case CONVERT_ARG:
                txt = xmlGetProp(node, ct->arg);
                if (txt) {
                    newtxt = ct->convert(txt);
                    d(printf("Upgrade prop '%s' '%s': '%s' -> '%s'\n", ct->tag, ct->arg, txt, newtxt?newtxt:"unchanged"));
                    xmlFree(txt);
                    if (newtxt) {
                        xmlSetProp(node, ct->arg, newtxt);
                        g_free(newtxt);
                        work = TRUE;
                    }
                }
                break;
            }
        }
    }

    if (scan) {
        node = node->children;
        while (node) {
            work |= upgrade_xml_1_0_rec(node);
            node = node->next;
        }
    }

    return work;
}

static int upgrade_xml_file_1_0(const char *filename)
{
    xmlDocPtr doc;
    char *savename;
    struct stat st;
    int res;

    /* FIXME: do something nicer with the errors */

    savename = alloca(strlen(filename)+64);
    sprintf(savename, "%s.save-%u.%u.%u", filename, major, minor, revision);
    if (stat(savename, &st) == 0) {
        fprintf(stderr, "xml file `%s' already upgraded\n", filename);
        return 0;
    }

    /* no file, no error */
    if (stat(filename, &st) == -1)
        return 0;

    doc = xmlParseFile (filename);
    if (!doc || !doc->xmlRootNode) {
        fprintf (stderr, "Failed to load %s\n", filename);
        return -1;
    }

    if (!upgrade_xml_1_0_rec(doc->xmlRootNode)) {
        xmlFreeDoc(doc);
        printf("file %s contains no old urls\n", filename);
        return 0;
    }
    
    d(printf("backing up %s to %s\n", filename, savename));

    if (rename(filename, savename) == -1) {
        xmlFreeDoc(doc);
        fprintf(stderr, "could not rename '%s' to '%s': %s\n", filename, savename, strerror(errno));
        return -1;
    }

    res = xmlSaveFormatFile(filename, doc, 1);

    xmlFreeDoc(doc);

    return res;
}

/* ********************************************************************** */
/*  Tables for converting flat bonobo conf -> gconf xml blob          */
/* ********************************************************************** */

/* for remapping bonobo-conf account data into the new xml blob format */
/* These are used in build_xml, and order must match the lookup_table */
enum _map_t {
    MAP_END = 0,        /* end of line*/
    MAP_BOOL,       /* bool -> prop of name 'to' value true or false */
    MAP_LONG,       /* long -> prop of name 'to' value a long */
    MAP_STRING,     /* string -> prop of name 'to' */
    MAP_ENUM,       /* long/bool -> prop of name 'to', with the value indexed into the child map table's from field */
    MAP_CHILD,      /* a new child of name 'to' */
    MAP_MASK = 0x3f,
    MAP_URI_UPGRADE = 0x40, /* if from 1.0.x, upgrade any uri's present */
    MAP_CONTENT = 0x80, /* if set, create a new node of name 'to' instead of a property */
};

struct _map_table {
    char *from;
    char *to;
    int type;
    struct _map_table *child;
};

/* Mail/Accounts/ * */
struct _map_table cc_map[] = {
    { "account_always_cc_%i", "always", MAP_BOOL },
    { "account_always_cc_addrs_%i", "recipients", MAP_STRING|MAP_CONTENT },
    { NULL },
};

struct _map_table bcc_map[] = {
    { "account_always_cc_%i", "always", MAP_BOOL },
    { "account_always_bcc_addrs_%i", "recipients", MAP_STRING|MAP_CONTENT },
    { NULL },
};

struct _map_table pgp_map[] = {
    { "account_pgp_encrypt_to_self_%i", "encrypt-to-self", MAP_BOOL },
    { "account_pgp_always_trust_%i", "always-trust", MAP_BOOL },
    { "account_pgp_always_sign_%i", "always-sign", MAP_BOOL },
    { "account_pgp_no_imip_sign_%i", "no-imip-sign", MAP_BOOL },
    { "account_pgp_key_%i", "key-id", MAP_STRING|MAP_CONTENT },
    { NULL },
};

struct _map_table smime_map[] = {
    { "account_smime_encrypt_to_self_%i", "encrypt-to-self", MAP_BOOL },
    { "account_smime_always_sign_%i", "always-sign", MAP_BOOL },
    { "account_smime_key_%i", "key-id", MAP_STRING|MAP_CONTENT },
    { NULL },
};

struct _map_table identity_map[] = {
    { "identity_name_%i", "name", MAP_STRING|MAP_CONTENT },
    { "identity_address_%i", "addr-spec", MAP_STRING|MAP_CONTENT },
    { "identity_reply_to_%i", "reply-to", MAP_STRING|MAP_CONTENT },
    { "identity_organization_%i", "organization", MAP_STRING|MAP_CONTENT },
    { "identity_autogenerated_signature_%i", "signature", MAP_BOOL },
    { "identity_def_signature_%i", "default", MAP_LONG },
    { NULL },
};

struct _map_table source_map[] = {
    { "source_save_passwd_%i", "save-passwd", MAP_BOOL },
    { "source_keep_on_server_%i", "keep-on-server", MAP_BOOL },
    { "source_auto_check_%i", "auto-check", MAP_BOOL },
    { "source_auto_check_time_%i", "auto-check-timeout", MAP_LONG },
    { "source_url_%i", "url", MAP_STRING|MAP_CONTENT },
    { NULL },
};

struct _map_table transport_map[] = {
    { "transport_save_passwd_%i", "save-passwd", MAP_BOOL },
    { "transport_url_%i", "url", MAP_STRING|MAP_CONTENT|MAP_URI_UPGRADE },
    { NULL },
};

struct _map_table account_map[] = {
    { "account_name_%i", "name", MAP_STRING },
    { "source_enabled_%i", "enabled", MAP_BOOL },
    { NULL, "identity", MAP_CHILD, identity_map },
    { NULL, "source", MAP_CHILD, source_map },
    { NULL, "transport", MAP_CHILD, transport_map },
    { "account_drafts_folder_uri_%i", "drafts-folder", MAP_STRING|MAP_CONTENT|MAP_URI_UPGRADE },
    { "account_sent_folder_uri_%i", "sent-folder", MAP_STRING|MAP_CONTENT|MAP_URI_UPGRADE },
    { NULL, "auto-cc", MAP_CHILD, cc_map },
    { NULL, "auto-bcc", MAP_CHILD, bcc_map },
    { NULL, "pgp", MAP_CHILD, pgp_map },
    { NULL, "smime", MAP_CHILD, smime_map },
    { NULL },
};

/* /Mail/Signatures/ * */
struct _map_table signature_format_map[] = {
    { "text/plain", },
    { "text/html", },
    { NULL }
};

struct _map_table signature_map[] = {
    { "name_%i", "name", MAP_STRING },
    { "html_%i", "format", MAP_ENUM, signature_format_map },
    { "filename_%i", "filename", MAP_STRING|MAP_CONTENT },
    { "script_%i", "script", MAP_STRING|MAP_CONTENT },
    { NULL },
};


static char *get_name(const char *in, int index)
{
    char c, *res;
    GString *out = g_string_new("");

    while ( (c = *in++) ) {
        if (c == '%') {
            c = *in++;
            switch(c) {
            case '%':
                g_string_append_c(out, '%');
                break;
            case 'i':
                g_string_append_printf(out, "%d", index);
                break;
            }
        } else {
            g_string_append_c(out, c);
        }
    }

    res = out->str;
    g_string_free(out, FALSE);

    return res;
}

static xmlNodePtr lookup_bconf_entry(xmlNodePtr source, const char *name)
{
    xmlNodePtr node = source->children;
    int found;
    char *val;

    while (node) {
        if (!strcmp(node->name, "entry")) {
            val = xmlGetProp(node, "name");
            found = val && strcmp(val, name) == 0;
            xmlFree(val);
            if (found)
                break;
        }
        node = node->next;
    }

    return node;
}

static char *lookup_bconf_value(xmlNodePtr source, const char *name)
{
    xmlNodePtr node = lookup_bconf_entry(source, name);

    if (node)
        return xmlGetProp(node, "value");
    else
        return NULL;
}

static xmlNodePtr lookup_bconf_path(xmlDocPtr doc, const char *path)
{
    xmlNodePtr root;
    char *val;
    int found;

    root = doc->children;
    if (strcmp(root->name, "bonobo-config") != 0) {
        g_warning("not bonobo-config xml file\n");
        return NULL;
    }

    root = root->children;
    while (root) {
        if (!strcmp(root->name, "section")) {
            val = xmlGetProp(root, "path");
            found = val && strcmp(val, path) == 0;
            xmlFree(val);
            if (found)
                break;
        }
        root = root->next;
    }

    return root;
}


static char *lookup_bool(xmlNodePtr source, const char *name, struct _map_table *map)
{
    char *val, *res;

    val = lookup_bconf_value(source, name);
    if (val) {
        res = g_strdup(val[0] == '1'?"true":"false");
        xmlFree(val);
    } else
        res = NULL;
    
    return res;
}

static char *lookup_long(xmlNodePtr source, const char *name, struct _map_table *map)
{
    char *val, *res;

    val = lookup_bconf_value(source, name);
    if (val) {
        res = g_strdup(val);
        xmlFree(val);
    } else
        res = NULL;
    
    return res;
}

static char *lookup_string(xmlNodePtr source, const char *name, struct _map_table *map)
{
    char *val, *res;

    val = lookup_bconf_value(source, name);
    if (val) {
        res = hex_decode(val);
        xmlFree(val);
    } else
        res = NULL;

    return res;
}

static char *lookup_enum(xmlNodePtr source, const char *name, struct _map_table *map)
{
    char *val;
    int index = 0, i;

    val = lookup_bconf_value(source, name);
    if (val) {
        index = atoi(val);
        xmlFree(val);
    }

    for (i=0;map->child[i].from;i++)
        if (i == index)
            return g_strdup(map->child[i].from);

    return NULL;
}

typedef char * (*lookup_func) (xmlNodePtr, const char *, struct _map_table *);

static void
build_xml(xmlNodePtr root, struct _map_table *map, int index, xmlNodePtr source)
{
    char *name, *value;
    xmlNodePtr node;
    lookup_func lookup_table[] = { lookup_bool, lookup_long, lookup_string, lookup_enum };

    while (map->type != MAP_END) {
        if ((map->type & MAP_MASK) == MAP_CHILD) {
            node = xmlNewChild(root, NULL, map->to, NULL);
            build_xml(node, map->child, index, source);
        } else {
            name = get_name(map->from, index);
            value = lookup_table[(map->type&MAP_MASK)-1](source, name, map);

            d(printf("key '%s=%s' -> ", name, value));

            if (map->type & MAP_URI_UPGRADE) {
                char *tmp = value;

                value = upgrade_uri(tmp);
                if (value)
                    g_free(tmp);
                else
                    value = tmp;
            }

            d(printf("'%s=%s'\n", map->to, value));

            if (map->type & MAP_CONTENT) {
                if (value && value[0])
                    xmlNewTextChild(root, NULL, map->to, value);
            } else {
                xmlSetProp(root, map->to, value);
            }
            g_free(value);
            g_free(name);
        }
        map++;
    }
}

static int convert_xml_blob(GConfClient *gconf, xmlDocPtr doc, struct _map_table *map, const char *path, const char *outpath, const char *name, const char *idparam)
{
    xmlNodePtr source;
    int count = 0, i;
    GSList *list, *l;
    char *val;

    source = lookup_bconf_path(doc, path);
    if (source) {
        list = NULL;
        val = lookup_bconf_value(source, "num");
        if (val) {
            count = atoi(val);
            xmlFree(val);
        }

        d(printf("Found %d blobs at %s\n", count, path));

        for (i = 0; i<count;i++) {
            xmlDocPtr docout;
            xmlChar *xmlbuf;
            int n;
            xmlNodePtr root;

            docout = xmlNewDoc ("1.0");
            root = xmlNewDocNode (docout, NULL, name, NULL);
            xmlDocSetRootElement (docout, root);

            /* This could be set with a MAP_UID type ... */
            if (idparam) {
                char buf[16];

                sprintf(buf, "%d", i);
                xmlSetProp(root, idparam, buf);
            }

            build_xml(root, map, i, source);
            
            xmlDocDumpMemory (docout, &xmlbuf, &n);
            xmlFreeDoc (docout);

            list = g_slist_append(list, xmlbuf);
        }

        gconf_client_set_list(gconf, outpath, GCONF_VALUE_STRING, list, NULL);
        while (list) {
            l = list->next;
            xmlFree(list->data);
            g_slist_free_1(list);
            list = l;
        }
    } else {
        g_warning("could not find '%s' in old config database, skipping", path);
    }

    return 0;
}

/* ********************************************************************** */
/*  Tables for bonobo conf -> gconf conversion                */
/* ********************************************************************** */

/* order important here, used to index a few tables below */
enum {
    BMAP_BOOL,
    BMAP_BOOLNOT,
    BMAP_INT,
    BMAP_STRING,
    BMAP_SIMPLESTRING,  /* a non-encoded string */
    BMAP_COLOUR,
    BMAP_FLOAT,     /* bloody floats, who uses floats ... idiots */
    BMAP_STRLIST,       /* strings separated to !<-->! -> gconf list */
    BMAP_ANYLIST,       /* corba sequence corba string -> gconf list */
    BMAP_MASK = 0x7f,
    BMAP_LIST = 0x80    /* from includes a %i field for the index of the key, to be converted to a list of type BMAP_* */
};

struct _gconf_map {
    char *from;
    char *to;
    int type;
};

/* ********************************************************************** */

static struct _gconf_map mail_accounts_map[] = {
    /* /Mail/Accounts - most entries are processed via the xml blob routine */
    /* This also works because the initial uid mapping is 1:1 with the list order */
    { "default_account", "mail/default_account", BMAP_SIMPLESTRING },
    { 0 },
};

static struct _gconf_map mail_display_map[] = {
    /* /Mail/Display */
    { "thread_list", "mail/display/thread_list", BMAP_BOOL },
    { "thread_subject", "mail/display/thread_subject", BMAP_BOOL },
    { "hide_deleted", "mail/display/show_deleted", BMAP_BOOLNOT },
    { "preview_pane", "mail/display/show_preview", BMAP_BOOL },
    { "paned_size", "mail/display/paned_size", BMAP_INT },
    { "seen_timeout", "mail/display/mark_seen_timeout", BMAP_INT },
    { "do_seen_timeout", "mail/display/mark_seen", BMAP_BOOL },
    { "http_images", "mail/display/load_http_images", BMAP_INT },
    { "citation_highlight", "mail/display/mark_citations", BMAP_BOOL },
    { "citation_color", "mail/display/citation_colour", BMAP_COLOUR },
    { "x_mailer_display_style", "mail/display/xmailer_mask", BMAP_INT },
    { 0 },
};

static struct _gconf_map mail_format_map[] = {
    /* /Mail/Format */
    { "message_display_style", "mail/display/message_style", BMAP_INT },
    { "send_html", "mail/composer/send_html", BMAP_BOOL },
    { "default_reply_style", "mail/format/reply_style", BMAP_INT },
    { "default_forward_style", "mail/format/forward_style", BMAP_INT },
    { "default_charset", "mail/composer/charset", BMAP_STRING },
    { "confirm_unwanted_html", "mail/prompts/unwanted_html", BMAP_BOOL },
    { 0 },
};

static struct _gconf_map mail_trash_map[] = {
    /* /Mail/Trash */
    { "empty_on_exit", "mail/trash/empty_on_exit", BMAP_BOOL },
    { 0 },
};

static struct _gconf_map mail_prompts_map[] = {
    /* /Mail/Prompts */
    { "confirm_expunge", "mail/prompts/expunge", BMAP_BOOL },
    { "empty_subject", "mail/prompts/empty_subject", BMAP_BOOL },
    { "only_bcc", "mail/prompts/only_bcc", BMAP_BOOL },
    { 0 }
};

static struct _gconf_map mail_filters_map[] = {
    /* /Mail/Filters */
    { "log", "mail/filters/log", BMAP_BOOL },
    { "log_path", "mail/filters/logfile", BMAP_STRING },
    { 0 }
};

static struct _gconf_map mail_notify_map[] = {
    /* /Mail/Notify */
    { "new_mail_notification", "mail/notify/type", BMAP_INT },
    { "new_mail_notification_sound_file", "mail/notify/sound", BMAP_STRING },
    { 0 }
};

static struct _gconf_map mail_filesel_map[] = {
    /* /Mail/Filesel */
    { "last_filesel_dir", "mail/save_dir", BMAP_STRING },
    { 0 }
};

static struct _gconf_map mail_composer_map[] = {
    /* /Mail/Composer */
    { "ViewFrom", "mail/composer/view/From", BMAP_BOOL },
    { "ViewReplyTo", "mail/composer/view/ReplyTo", BMAP_BOOL },
    { "ViewCC", "mail/composer/view/Cc", BMAP_BOOL },
    { "ViewBCC", "mail/composer/view/Bcc", BMAP_BOOL },
    { "ViewSubject", "mail/composer/view/Subject", BMAP_BOOL },
    { 0 },
};

/* ********************************************************************** */

static struct _gconf_map importer_elm_map[] = {
    /* /Importer/Elm */
    { "mail", "importer/elm/mail", BMAP_BOOL },
    { "mail-imported", "importer/elm/mail-imported", BMAP_BOOL },
    { 0 },
};

static struct _gconf_map importer_pine_map[] = {
    /* /Importer/Pine */
    { "mail", "importer/elm/mail", BMAP_BOOL },
    { "address", "importer/elm/address", BMAP_BOOL },
    { 0 },
};

static struct _gconf_map importer_netscape_map[] = {
    /* /Importer/Netscape */
    { "mail", "importer/netscape/mail", BMAP_BOOL },
    { "settings", "importer/netscape/settings", BMAP_BOOL },
    { "filters", "importer/netscape/filters", BMAP_BOOL },
    { 0 },
};

/* ********************************************************************** */

static struct _gconf_map myev_mail_map[] = {
    /* /My-Evolution/Mail */
    { "show_full_path", "summary/mail/show_full_paths", BMAP_BOOL },
    { 0 },
};

static struct _gconf_map myev_rdf_map[] = {
    /* /My-Evolution/RDF */
    { "rdf_urls", "summary/rdf/uris", BMAP_STRLIST },
    { "rdf_refresh_time", "summary/rdf/refresh_time", BMAP_INT },
    { "limit", "summary/rdf/max_items", BMAP_INT },
    { 0 },
};

static struct _gconf_map myev_weather_map[] = {
    /* /My-Evolution/Weather */
    { "stations", "summary/weather/stations", BMAP_STRLIST },
    { "units", "summary/weather/use_metric", BMAP_BOOL }, /* this is use_metric bool in 1.3? */
    { "weather_refresh_time", "summary/weather/refresh_time", BMAP_INT },
    { 0 },
};

static struct _gconf_map myev_schedule_map[] = {
    /* /My-Evolution/Shedule */
    { "show_tasks", "summary/tasks/show_all", BMAP_BOOL }, /* this is show_all bool in 1.3? */
    { 0 },
};

/* ********************************************************************** */

/* This grabs the defaults from the first view ... (?) */
static struct _gconf_map shell_views_map[] = {
    /* /Shell/Views/0 */
    { "Width", "shell/view_defaults/width", BMAP_INT },
    { "Height", "shell/view_defaults/height", BMAP_INT },
    { "CurrentShortcutsGroupNum", "shell/view_defaults/selected_shortcut_group", BMAP_INT },
    { "FolderBarShown", "shell/view_defaults/show_folder_bar", BMAP_BOOL },
    { "ShortcutBarShown", "shell/view_defaults/show_shortcut_bar", BMAP_BOOL },
    { "HPanedPosition", "shell/view_defaults/shortcut_bar/width", BMAP_INT },
    { "ViewPanedPosition", "shell/view_defaults/folder_bar/width", BMAP_INT },
    { "DisplayedURI", "shell/view_defaults/folder_path", BMAP_STRING },
    { "ShortcutBarGroup%iIconMode", "shell/view_defaults/shortcut_bar/icon_types", BMAP_INT|BMAP_LIST },
    { 0 },
};

static struct _gconf_map offlinefolders_map[] = {
    /* /OfflineFolders */
    { "paths", "shell/offline/folder_paths", BMAP_ANYLIST },
    { 0 },
};

static struct _gconf_map defaultfolders_map[] = {
    /* /DefaultFolders */
    { "mail_path", "shell/default_folders/mail_path", BMAP_STRING },
    { "mail_uri", "shell/default_folders/mail_uri", BMAP_STRING },
    { "contacts_path", "shell/default_folders/contacts_path", BMAP_STRING },
    { "contacts_uri", "shell/default_folders/contacts_uri", BMAP_STRING },
    { "calendar_path", "shell/default_folders/calendar_path", BMAP_STRING },
    { "calendar_uri", "shell/default_folders/calendar_uri", BMAP_STRING },
    { "tasks_path", "shell/default_folders/tasks_path", BMAP_STRING },
    { "tasks_uri", "shell/default_folders/tasks_uri", BMAP_STRING },
    { 0 },
};

static struct _gconf_map shell_map[] = {
    /* /Shell */
    { "StartOffline", "shell/start_offline", BMAP_BOOL },
    { 0 },
};

/* ********************************************************************** */

static struct _gconf_map addressbook_map[] = {
    /* /Addressbook */
    { "select_names_uri", "addressbook/select_names/last_used_uri", BMAP_STRING },
    { 0 },
};

static struct _gconf_map addressbook_completion_map[] = {
    /* /Addressbook/Completion */
    { "uris", "addressbook/completion/uris", BMAP_STRING },
    { 0 },
};

/* ********************************************************************** */

static struct _gconf_map calendar_display_map[] = {
    /* /Calendar/Display */
    { "Timezone", "calendar/display/timezone", BMAP_STRING },
    { "Use24HourFormat", "calendar/display/use_24hour_format", BMAP_BOOL },
    { "WeekStartDay", "calendar/display/week_start_day", BMAP_INT },
    { "DayStartHour", "calendar/display/day_start_hour", BMAP_INT },
    { "DayStartMinute", "calendar/display/day_start_minute", BMAP_INT },
    { "DayEndHour", "calendar/display/day_end_hour", BMAP_INT },
    { "DayEndMinute", "calendar/display/day_end_minute", BMAP_INT },
    { "TimeDivisions", "calendar/display/time_divisions", BMAP_INT },
    { "View", "calendar/display/default_view", BMAP_INT },
    { "HPanePosition", "calendar/display/hpane_position", BMAP_FLOAT },
    { "VPanePosition", "calendar/display/vpane_position", BMAP_FLOAT },
    { "MonthHPanePosition", "calendar/display/month_hpane_position", BMAP_FLOAT },
    { "MonthVPanePosition", "calendar/display/month_vpane_position", BMAP_FLOAT },
    { "CompressWeekend", "calendar/display/compress_weekend", BMAP_BOOL },
    { "ShowEventEndTime", "calendar/display/show_event_end", BMAP_BOOL },
    { "WorkingDays", "calendar/display/working_days", BMAP_INT },
    { 0 },
};

static struct _gconf_map calendar_tasks_map[] = {
    /* /Calendar/Tasks */
    { "HideCompletedTasks", "calendar/tasks/hide_completed", BMAP_BOOL },
    { "HideCompletedTasksUnits", "calendar/tasks/hide_completed_units", BMAP_STRING },
    { "HideCompletedTasksValue", "calendar/tasks/hide_completed_value", BMAP_INT },
    { 0 },
};

static struct _gconf_map calendar_tasks_colours_map[] = {
    /* /Calendar/Tasks/Colors */
    { "TasksDueToday", "calendar/tasks/colors/due_today", BMAP_STRING },
    { "TasksOverDue", "calendar/tasks/colors/overdue", BMAP_STRING },
    { "TasksDueToday", "calendar/tasks/colors/due_today", BMAP_STRING },
    { 0 },
};

static struct _gconf_map calendar_other_map[] = {
    /* /Calendar/Other */
    { "ConfirmDelete", "calendar/prompts/confirm_delete", BMAP_BOOL },
    { "ConfirmExpunge", "calendar/prompts/confirm_expunge", BMAP_BOOL },
    { "UseDefaultReminder", "calendar/other/use_default_reminder", BMAP_BOOL },
    { "DefaultReminderInterval", "calendar/other/default_reminder_interval", BMAP_INT },
    { "DefaultReminderUnits", "calendar/other/default_reminder_units", BMAP_STRING },
    { 0 },
};

static struct _gconf_map calendar_datenavigator_map[] = {
    /* /Calendar/DateNavigator */
    { "ShowWeekNumbers", "calendar/date_navigator/show_week_numbers", BMAP_BOOL },
    { 0 },
};

static struct _gconf_map calendar_alarmnotify_map[] = {
    /* /Calendar/AlarmNotify */
    { "LastNotificationTime", "calendar/notify/last_notification_time", BMAP_INT },
    { "CalendarToLoad%i", "calendar/notify/calendars", BMAP_STRING|BMAP_LIST },
    { "BlessedProgram%i", "calendar/notify/programs", BMAP_STRING|BMAP_LIST },
    { 0 },
};

/* ********************************************************************** */

static struct {
    char *root;
    struct _gconf_map *map;
} gconf_remap_list[] = {
    { "/Mail/Accounts", mail_accounts_map },
    { "/Mail/Display", mail_display_map },
    { "/Mail/Format", mail_format_map },
    { "/Mail/Trash", mail_trash_map },
    { "/Mail/Prompts", mail_prompts_map },
    { "/Mail/Filters", mail_filters_map },
    { "/Mail/Notify", mail_notify_map },
    { "/Mail/Filesel", mail_filesel_map },
    { "/Mail/Composer", mail_composer_map },

    { "/Importer/Elm", importer_elm_map },
    { "/Importer/Pine", importer_pine_map },
    { "/Importer/Netscape", importer_netscape_map },

    { "My-Evolution/Mail", myev_mail_map },
    { "My-Evolution/RDF", myev_rdf_map },
    { "My-Evolution/Weather", myev_weather_map },
    { "My-Evolution/Schedule", myev_schedule_map },

    { "/Shell", shell_map },
    { "/Shell/Views/0", shell_views_map },
    { "/OfflineFolders", offlinefolders_map },
    { "/DefaultFolders", defaultfolders_map },

    { "/Addressbook", addressbook_map },
    { "/Addressbook/Completion", addressbook_completion_map },

    { "/Calendar/Display", calendar_display_map },
    { "/Calendar/Tasks", calendar_tasks_map },
    { "/Calendar/Tasks/Colors", calendar_tasks_colours_map },
    { "/Calendar/Other/Map", calendar_other_map },
    { "/Calendar/DateNavigator", calendar_datenavigator_map },
    { "/Calendar/AlarmNotify", calendar_alarmnotify_map },

    { 0 },
};

#define N_(x) x

struct {
    char *label;
    char *colour;
} label_default[5] = {
    { N_("Important"), "#ff0000" },  /* red */
    { N_("Work"),      "#ff8c00" },  /* orange */
    { N_("Personal"),  "#008b00" },  /* forest green */
    { N_("To Do"),     "#0000ff" },  /* blue */
    { N_("Later"),     "#8b008b" }   /* magenta */
};

/* remaps mail config from bconf to gconf */
static int import_bonobo_config(xmlDocPtr config_doc, GConfClient *gconf)
{
    xmlNodePtr source;
    int i, j, k;
    struct _gconf_map *map;
    char *path, *val, *tmp;
    GSList *list, *l;
    char buf[32];

    /* process all flat config */
    for (i=0;gconf_remap_list[i].root;i++) {
        d(printf("Path: %s\n", gconf_remap_list[i].root));
        source = lookup_bconf_path(config_doc, gconf_remap_list[i].root);
        if (source == NULL)
            continue;
        map = gconf_remap_list[i].map;
        for (j=0;map[j].from;j++) {
            if (map[j].type & BMAP_LIST) {
                /* collapse a multi-entry indexed field into a list */
                list = NULL;
                k = 0;
                do {
                    path = get_name(map[j].from, k);
                    val = lookup_bconf_value(source, path);
                    d(printf("finding path '%s' = '%s'\n", path, val));
                    g_free(path);
                    if (val) {
                        switch(map[j].type & BMAP_MASK) {
                        case BMAP_BOOL:
                        case BMAP_INT:
                            list = g_slist_append(list, GINT_TO_POINTER(atoi(val)));
                            break;
                        case BMAP_STRING:
                            d(printf(" -> '%s'\n", hex_decode(val)));
                            list = g_slist_append(list, hex_decode(val));
                            break;
                        }
                        xmlFree(val);
                        k++;
                    }
                } while (val);

                if (list) {
                    const int gconf_type[] = { GCONF_VALUE_BOOL, GCONF_VALUE_BOOL, GCONF_VALUE_INT, GCONF_VALUE_STRING, GCONF_VALUE_STRING };

                    path = g_strdup_printf("/apps/evolution/%s", map[j].to);
                    gconf_client_set_list(gconf, path, gconf_type[map[j].type & BMAP_MASK], list, NULL);
                    g_free(path);
                    if ((map[j].type & BMAP_MASK) == BMAP_STRING)
                        g_slist_foreach(list, (GFunc)g_free, NULL);
                    g_slist_free(list);
                }

                continue;
            } else if (map[j].type == BMAP_ANYLIST)
                val = NULL;
            else {
                val = lookup_bconf_value(source, map[j].from);
                if (val == NULL)
                    continue;
            }
            d(printf(" %s = '%s' -> %s [%d]\n",
                 map[j].from,
                 val == NULL ? "(null)" : val,
                 map[j].to,
                 map[j].type));
            path = g_strdup_printf("/apps/evolution/%s", map[j].to);
            switch(map[j].type) {
            case BMAP_BOOL:
                gconf_client_set_bool(gconf, path, atoi(val), NULL);
                break;
            case BMAP_BOOLNOT:
                gconf_client_set_bool(gconf, path, !atoi(val), NULL);
                break;
            case BMAP_INT:
                gconf_client_set_int(gconf, path, atoi(val), NULL);
                break;
            case BMAP_STRING:
                tmp = hex_decode(val);
                gconf_client_set_string(gconf, path, tmp, NULL);
                g_free(tmp);
                break;
            case BMAP_SIMPLESTRING:
                gconf_client_set_string(gconf, path, val, NULL);
                break;
            case BMAP_FLOAT:
                gconf_client_set_float(gconf, path, strtod(val, NULL), NULL);
                break;
            case BMAP_STRLIST:{
                char *v = hex_decode(val);
                char **t = g_strsplit (v, " !<-->! ", 8196);

                list = NULL;
                for (k=0;t[k];k++) {
                    list = g_slist_append(list, t[k]);
                    d(printf("  [%d] = '%s'\n", k, t[k]));
                }
                gconf_client_set_list(gconf, path, GCONF_VALUE_STRING, list, NULL);
                g_slist_free(list);
                g_strfreev(t);
                g_free(v);
                break;}
            case BMAP_ANYLIST:{
                xmlNodePtr node = source->children;
                list = NULL;

                /* find the entry node */
                while (node) {
                    if (!strcmp(node->name, "entry")) {
                        int found;

                        tmp = xmlGetProp(node, "name");
                        if (tmp) {
                            found = strcmp(tmp, map[j].from) == 0;
                            xmlFree(tmp);
                            if (found)
                                break;
                        }
                    }
                    node = node->next;
                }

                /* find the the any block */
                if (node) {
                    node = node->children;
                    while (node) {
                        if (strcmp(node->name, "any") == 0)
                            break;
                        node = node->next;
                    }
                }

                /* skip to the value inside it */
                if (node) {
                    node = node->children;
                    while (node) {
                        if (strcmp(node->name, "value") == 0)
                            break;
                        node = node->next;
                    }
                }

                if (node) {
                    node = node->children;
                    while (node) {
                        if (strcmp(node->name, "value") == 0)
                            list = g_slist_append(list, xmlNodeGetContent(node));
                        node = node->next;
                    }
                }

                /* & store */
                if (list) {
                    gconf_client_set_list(gconf, path, GCONF_VALUE_STRING, list, NULL);
                    while (list) {
                        l = list->next;
                        xmlFree(list->data);
                        g_slist_free_1(list);
                        list = l;
                    }
                }
                
                break;}
            case BMAP_COLOUR:
                sprintf(buf, "#%06x", atoi(val) & 0xffffff);
                gconf_client_set_string(gconf, path, buf, NULL);
                break;
            }
            /* FIXME: handle errors */
            g_free(path);
            xmlFree(val);
        }
    }

    /* Labels:
      label string + label colour as integer
       -> label string:# colour as hex */
    source = lookup_bconf_path(config_doc, "/Mail/Labels");
    if (source) {
        list = NULL;
        for (i=0;i<5;i++) {
            char labx[16], colx[16];
            char *lab, *col;

            sprintf(labx, "label_%d", i);
            sprintf(colx, "color_%d", i);
            lab = lookup_string(source, labx, NULL);
            col = lookup_bconf_value(source, colx);
            if (col) {
                sprintf(colx, "#%06x", atoi(col) & 0xffffff);
                xmlFree(col);
            } else
                strcpy(colx, label_default[i].colour);
            val = g_strdup_printf("%s:%s", lab?lab:label_default[i].label, colx);
            list = g_slist_append(list, val);
            g_free(lab);
        }

        gconf_client_set_list(gconf, "/apps/evolution/mail/labels", GCONF_VALUE_STRING, list, NULL);
        while (list) {
            l = list->next;
            g_free(list->data);
            g_slist_free_1(list);
            list = l;
        }
    } else {
        g_warning("could not find /Mail/Labels in old config database, skipping");
    }

    /* Accounts: The flat bonobo-config structure is remapped to a list of xml blobs.  Upgrades as necessary */
    convert_xml_blob(gconf, config_doc, account_map, "/Mail/Accounts", "/apps/evolution/mail/accounts", "account", "uid");
    /* Same for signatures */
    convert_xml_blob(gconf, config_doc, signature_map, "/Mail/Signatures", "/apps/evolution/mail/signatures", "signature", NULL);

    /* My-Evolution folder lists */
    source = lookup_bconf_path(config_doc, "My-Evolution/Mail");
    if (source) {
        char **t;

        list = NULL;
        l = NULL;

        val = lookup_string(source, "display_folders-1.2", NULL);
        /* FIXME: what needs upgrading here?  Anything? */
        if (val == NULL)
            val = lookup_string(source, "display_folders", NULL);

        if (val) {
            t = g_strsplit (val, " !<-->! ", 8196);
            for (i=0;t[i] && t[i+1];i+=2) {
                list = g_slist_append(list, t[i]);
                l = g_slist_append(l, t[i+1]);
                d(printf(" [%d] = euri: '%s', puri: '%s'\n", i, t[i], t[i+1]));
            }
            if (list) {
                gconf_client_set_list(gconf, "/apps/evolution/summary/mail/folder_evolution_uris", GCONF_VALUE_STRING, list, NULL);
                g_slist_free(list);
            }
            if (l) {
                gconf_client_set_list(gconf, "/apps/evolution/summary/mail/folder_physical_uris", GCONF_VALUE_STRING, l, NULL);
                g_slist_free(l);
            }
            g_strfreev(t);
        }
    }

    return 0;
}


static int load_accounts_1_0(xmlDocPtr doc)
{
    xmlNodePtr source;
    char *val, *tmp;
    int count = 0, i;
    char key[32];

    source = lookup_bconf_path(doc, "/Mail/Accounts");
    if (source == NULL)
        return 0;

    val = lookup_bconf_value(source, "num");
    if (val) {
        count = atoi(val);
        xmlFree(val);
    }

    /* load account upgrade info for each account */
    for (i=0;i<count;i++) {
        struct _account_info *ai;
        char *rawuri;

        sprintf(key, "source_url_%d", i);
        rawuri = lookup_bconf_value(source, key);
        if (rawuri == NULL)
            continue;
        ai = g_malloc0(sizeof(*ai));
        ai->uri = hex_decode(rawuri);
        ai->base_uri = get_base_uri(ai->uri);
        sprintf(key, "account_name_%d", i);
        ai->name = lookup_string(source, key, NULL);

        d(printf("load account '%s'\n", ai->uri));

        if (!strncmp(ai->uri, "imap:", 5)) {
            read_imap_storeinfo(ai);
        } else if (!strncmp(ai->uri, "exchange:", 9)) {
            xmlNodePtr node;

            d(printf(" upgrade exchange account\n"));
            /* small hack, poke the source_url into the transport_url for exchanget: transports
               - this will be picked up later in the conversion */
            sprintf(key, "transport_url_%d", i);
            node = lookup_bconf_entry(source, key);
            if (node
                && (val = xmlGetProp(node, "value"))) {
                tmp = hex_decode(val);
                xmlFree(val);
                if (strncmp(tmp, "exchanget:", 10) == 0)
                    xmlSetProp(node, "value", rawuri);
                g_free(tmp);
            } else {
                d(printf(" couldn't find transport uri?\n"));
            }
        }
        xmlFree(rawuri);

        g_hash_table_insert(accounts_1_0, ai->base_uri, ai);
        if (ai->name)
            g_hash_table_insert(accounts_name_1_0, ai->name, ai);
    }

    return 0;
}

/**
 * e_config_upgrade:
 * @edir: 
 * 
 * Upgrade evolution configuration from prior versions of evolution to
 * the current one.
 *
 * No work is performed if the configuration version is up to date.
 *
 * The tracked version is upgraded to the latest even if no
 * configuration upgrades are required for that version.
 *
 * Further information about how this is intended to work:
 *
 * There are 3 basic steps, numbered in the comments below.
 * 1. Determine the current config verison
 * 2. Upgrade to the current source version
 * 3. Save the version number, as defined by CONF_MAJOR, CONF_MINOR,
 *    CONF_REVISION.  These are all treated as integers, so 10 is
 *    greater than 9.
 *
 * 1 and 3 should not need changing.  After an upgrade to 1.3.x and
 * until the config system changes again (!), step one becomes
 * trivial.  Any changes to part 2 should be added to the end of the
 * section, or as required.  This allows for very fine-grained version
 * upgrades, including pre-release and patch-level changes to fix
 * config problems which may have lasted for a single version or
 * patch, in which case CONF_REVISION can be bumped.
 * 
 * At any time, the CONF_VERSION/MAJOR/REVISION can be increased to
 * match the source release, even if no new configuration changes will
 * be required from the previous version.  This should be done at each
 * release in case bugs in that configuration version are required to
 * be fixed at any time in the future.
 *
 * Return value: -1 on an error.
 **/
int
e_config_upgrade(const char *edir)
{
    xmlNodePtr source;
    xmlDocPtr config_doc = NULL;
    int i;
    char *val, *tmp;
    GConfClient *gconf;
    int res = -1;
    struct stat st;

    evolution_dir = edir;

    /* 1. determine existing version */
    gconf = gconf_client_get_default();
    val = gconf_client_get_string(gconf, "/apps/evolution/version", NULL);
    if (val) {
        sscanf(val, "%u.%u.%u", &major, &minor, &revision);
        g_free(val);
    } else {
        char *filename = g_build_filename(evolution_dir, "config.xmldb", NULL);

        if (lstat(filename, &st) == 0
            && S_ISREG(st.st_mode))
            config_doc = xmlParseFile (filename);
        g_free(filename);

        tmp = NULL;
        if ( config_doc
             && (source = lookup_bconf_path(config_doc, "/Shell"))
             && (tmp = lookup_bconf_value(source, "upgrade_from_1_0_to_1_2_performed"))
             && tmp[0] == '1' ) {
            major = 1;
            minor = 2;
            revision = 0;
        } else {
            major = 1;
            minor = 0;
            revision = 0;
        }
        if (tmp)
            xmlFree(tmp);
    }

    /* 2. Now perform any upgrade duties */

    d(printf("current config version is '%u.%u.%u'\n", major, minor, revision));

    /* For 1.0.x we need to load the accounts first, as data it initialises is used elsewhere */
    if (major <=1 && minor < 2) {
        char *xml_files[] = { "vfolders.xml", "filters.xml", "shortcuts.xml" };

        /* load in 1.0 info */
        if (config_doc) {
            accounts_1_0 = g_hash_table_new(g_str_hash, g_str_equal);
            accounts_name_1_0 = g_hash_table_new(g_str_hash, g_str_equal);
            load_accounts_1_0(config_doc);
        }

        /* upgrade xml uri fields */
        for (i=0;i<sizeof(xml_files)/sizeof(xml_files[0]);i++) {
            char *path;

            path = g_build_filename(evolution_dir, xml_files[i], NULL);
            if (upgrade_xml_file_1_0(path) == -1)
                g_warning("Could not upgrade xml file %s", xml_files[i]);

            g_free(path);
        }
    }

    if (config_doc && major <=1 && minor < 3) {
        /* move bonobo config to gconf */
        if (import_bonobo_config(config_doc, gconf) == -1) {
            g_warning("Could not move config from bonobo-conf to gconf");
            goto error;
        }
    }

    /* 3. we're done, update our version info if its changed */
    if (major < CONF_MAJOR
        || minor < CONF_MINOR
        || revision < CONF_REVISION) {
        val = g_strdup_printf("%u.%u.%u", CONF_MAJOR, CONF_MINOR, CONF_REVISION);
        gconf_client_set_string(gconf, "/apps/evolution/version", val, NULL);
        /* TODO: should this be translatable? */
        g_message("Evolution configuration upgraded to version: %s", val);
        g_free(val);
        gconf_client_suggest_sync(gconf, NULL);
    }

    res = 0;

error:
    if (config_doc)
        xmlFreeDoc(config_doc);

    return res;
}