plugins/fts-solr/fts-solr-plugin.c

	fts-solr-plugin.c revision 6634e45500e81cfa36932203ee69c81745efd3e6
/* Copyright (c) 2006-2015 Dovecot authors, see the included COPYING file */

#include "lib.h"
#include "array.h"
#include "http-client.h"
#include "mail-user.h"
#include "mail-storage-hooks.h"
#include "solr-connection.h"
#include "fts-user.h"
#include "fts-solr-plugin.h"

#include <stdlib.h>

const char *fts_solr_plugin_version = DOVECOT_ABI_VERSION;
struct http_client *solr_http_client = NULL;

struct fts_solr_user_module fts_solr_user_module =
    MODULE_CONTEXT_INIT(&mail_user_module_register);

static int
fts_solr_plugin_init_settings(struct mail_user *user,
                  struct fts_solr_settings *set, const char *str)
{
    const char *const *tmp;

    if (str == NULL)
        str = "";

    for (tmp = t_strsplit_spaces(str, " "); *tmp != NULL; tmp++) {
        if (strncmp(*tmp, "url=", 4) == 0) {
            set->url = p_strdup(user->pool, *tmp + 4);
        } else if (strcmp(*tmp, "debug") == 0) {
            set->debug = TRUE;
        } else if (strcmp(*tmp, "use_libfts") == 0) {
            set->use_libfts = TRUE;
        } else if (strcmp(*tmp, "break-imap-search") == 0) {
            /* for backwards compatibility */
        } else if (strcmp(*tmp, "default_ns=") == 0) {
            set->default_ns_prefix =
                p_strdup(user->pool, *tmp + 11);
        } else {
            i_error("fts_solr: Invalid setting: %s", *tmp);
            return -1;
        }
    }
    if (set->url == NULL) {
        i_error("fts_solr: url setting missing");
        return -1;
    }
    return 0;
}

static void fts_solr_mail_user_deinit(struct mail_user *user)
{
    struct fts_solr_user *fuser = FTS_SOLR_USER_CONTEXT(user);

    if (fuser->set.use_libfts)
        fts_mail_user_deinit(user);
    fuser->module_ctx.super.deinit(user);
}

static void fts_solr_mail_user_create(struct mail_user *user, const char *env)
{
    struct mail_user_vfuncs *v = user->vlast;
    struct fts_solr_user *fuser;
    const char *error;

    fuser = p_new(user->pool, struct fts_solr_user, 1);
    if (fts_solr_plugin_init_settings(user, &fuser->set, env) < 0) {
        /* invalid settings, disabling */
        return;
    }
    if (fuser->set.use_libfts) {
        if (fts_mail_user_init(user, &error) < 0) {
            i_error("fts-solr: %s", error);
            return;
        }
    }

    fuser->module_ctx.super = *v;
    user->vlast = &fuser->module_ctx.super;
    v->deinit = fts_solr_mail_user_deinit;
    MODULE_CONTEXT_SET(user, fts_solr_user_module, fuser);
}

static void fts_solr_mail_user_created(struct mail_user *user)
{
    const char *env;

    env = mail_user_plugin_getenv(user, "fts_solr");
    if (env != NULL)
        fts_solr_mail_user_create(user, env);
}

static struct mail_storage_hooks fts_solr_mail_storage_hooks = {
    .mail_user_created = fts_solr_mail_user_created
};

void fts_solr_plugin_init(struct module *module)
{
    fts_backend_register(&fts_backend_solr);
    fts_backend_register(&fts_backend_solr_old);
    mail_storage_hooks_add(module, &fts_solr_mail_storage_hooks);
}

void fts_solr_plugin_deinit(void)
{
    fts_backend_unregister(fts_backend_solr.name);
    fts_backend_unregister(fts_backend_solr_old.name);
    mail_storage_hooks_remove(&fts_solr_mail_storage_hooks);
    if (solr_http_client != NULL)
        http_client_deinit(&solr_http_client);

}

const char *fts_solr_plugin_dependencies[] = { "fts", NULL };