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/* Copyright (c) 2002-2013 Pigeonhole authors, see the included COPYING file
*/
#include "lib.h"
#include "ostream.h"
#include "istream.h"
#include "sieve-storage-script.h"
#include "managesieve-common.h"
#include "managesieve-commands.h"
struct cmd_getscript_context {
struct client *client;
struct client_command_context *cmd;
struct sieve_storage *storage;
uoff_t script_size, script_offset;
struct sieve_script *script;
struct istream *script_stream;
unsigned int failed:1;
};
static bool cmd_getscript_finish(struct cmd_getscript_context *ctx)
{
struct client *client = ctx->client;
if ( ctx->script != NULL )
sieve_script_unref(&ctx->script);
if ( ctx->failed ) {
if ( client->output->closed ) {
client_disconnect(client, "Disconnected");
return TRUE;
}
client_send_storage_error(client, client->storage);
return TRUE;
}
client_send_line(client, "");
client_send_ok(client, "Getscript completed.");
return TRUE;
}
static bool cmd_getscript_continue(struct client_command_context *cmd)
{
struct client *client = cmd->client;
struct cmd_getscript_context *ctx = cmd->context;
off_t ret;
ret = o_stream_send_istream(client->output, ctx->script_stream);
if ( ret < 0 ) {
sieve_storage_set_critical(ctx->storage,
"o_stream_send_istream() failed for script `%s' from %s: %m",
sieve_script_name(ctx->script), sieve_script_location(ctx->script));
ctx->failed = TRUE;
return cmd_getscript_finish(ctx);
}
ctx->script_offset += ret;
if ( ctx->script_offset != ctx->script_size && !ctx->failed ) {
/* unfinished */
if ( !i_stream_have_bytes_left(ctx->script_stream) ) {
/* Input stream gave less data than expected */
sieve_storage_set_critical(ctx->storage,
"GETSCRIPT for script `%s' from %s got too little data: "
"%"PRIuUOFF_T" vs %"PRIuUOFF_T, sieve_script_name(ctx->script),
sieve_script_location(ctx->script), ctx->script_offset, ctx->script_size);
client_disconnect(ctx->client, "GETSCRIPT failed");
ctx->failed = TRUE;
return cmd_getscript_finish(ctx);
}
return FALSE;
}
return cmd_getscript_finish(ctx);
}
bool cmd_getscript(struct client_command_context *cmd)
{
struct client *client = cmd->client;
struct cmd_getscript_context *ctx;
const char *scriptname;
enum sieve_error error;
/* <scriptname> */
if ( !client_read_string_args(cmd, 1, TRUE, &scriptname) )
return FALSE;
ctx = p_new(cmd->pool, struct cmd_getscript_context, 1);
ctx->cmd = cmd;
ctx->client = client;
ctx->storage = client->storage;
ctx->failed = FALSE;
ctx->script = sieve_storage_script_init(client->storage, scriptname);
if (ctx->script == NULL) {
ctx->failed = TRUE;
return cmd_getscript_finish(ctx);
}
if ( sieve_script_get_stream
(ctx->script, &ctx->script_stream, &error) < 0 ) {
if ( error == SIEVE_ERROR_NOT_FOUND )
sieve_storage_set_error(client->storage, error, "Script does not exist.");
ctx->failed = TRUE;
return cmd_getscript_finish(ctx);
}
if ( sieve_script_get_size(ctx->script, &ctx->script_size) <= 0 ) {
sieve_storage_set_critical(ctx->storage,
"failed to obtain script size for script `%s' from %s",
sieve_script_name(ctx->script), sieve_script_location(ctx->script));
ctx->failed = TRUE;
return cmd_getscript_finish(ctx);
}
ctx->script_offset = 0;
client_send_line
(client, t_strdup_printf("{%"PRIuUOFF_T"}", ctx->script_size));
client->command_pending = TRUE;
cmd->func = cmd_getscript_continue;
cmd->context = ctx;
return cmd_getscript_continue(cmd);
}
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