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seafile-server/server/processors/check-tx-slave-proc.c
Jiaqiang Xu 2643119433 Initial commit of Seafile server core.
2016-08-19 13:54:16 +08:00

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
#include "common.h"
#include <string.h>
#include <ccnet.h>
#include <stdlib.h>
#include <ccnet.h>
#include <ccnet/job-mgr.h>
#include <ccnet/ccnet-object.h>
#include "seafile-session.h"
#include "check-tx-slave-proc.h"
#include "log.h"
#define SC_GET_TOKEN "301"
#define SS_GET_TOKEN "Get token"
#define SC_PUT_TOKEN "302"
#define SS_PUT_TOKEN "Put token"
#define SC_GET_VERSION "303"
#define SS_GET_VERSION "Get version"
#define SC_VERSION "304"
#define SS_VERSION "Version"
#define SC_ACCESS_DENIED "401"
#define SS_ACCESS_DENIED "Access denied"
#define SC_SERVER_ERROR "404"
#define SS_SERVER_ERROR "Internal server error"
#define SC_PROTOCOL_MISMATCH "405"
#define SS_PROTOCOL_MISMATCH "Protocol version mismatch"
/* Only for upload */
#define SC_QUOTA_ERROR "402"
#define SS_QUOTA_ERROR "Failed to get quota"
#define SC_QUOTA_FULL "403"
#define SS_QUOTA_FULL "storage for the repo's owner is full"
/* Only for download */
#define SC_BAD_REPO "406"
#define SS_BAD_REPO "Repo doesn't exist"
#define SC_NO_BRANCH "407"
#define SS_NO_BRANCH "Branch not found"
enum {
INIT,
ACCESS_GRANTED,
};
enum {
CHECK_TX_TYPE_UPLOAD,
CHECK_TX_TYPE_DOWNLOAD,
};
typedef struct {
int type;
char repo_id[37];
char *branch_name;
char *email;
char *rsp_code;
char *rsp_msg;
char head_id[41];
int has_branch;
} SeafileCheckTxSlaveProcPriv;
#define GET_PRIV(o) \
(G_TYPE_INSTANCE_GET_PRIVATE ((o), SEAFILE_TYPE_CHECK_TX_SLAVE_PROC, SeafileCheckTxSlaveProcPriv))
#define USE_PRIV \
SeafileCheckTxSlaveProcPriv *priv = GET_PRIV(processor);
G_DEFINE_TYPE (SeafileCheckTxSlaveProc, seafile_check_tx_slave_proc, CCNET_TYPE_PROCESSOR)
static int start (CcnetProcessor *processor, int argc, char **argv);
static void handle_update (CcnetProcessor *processor,
char *code, char *code_msg,
char *content, int clen);
static void thread_done (void *result);
static void
release_resource(CcnetProcessor *processor)
{
USE_PRIV;
/* g_free works fine even if ptr is NULL. */
g_free (priv->email);
g_free (priv->branch_name);
g_free (priv->rsp_code);
g_free (priv->rsp_msg);
CCNET_PROCESSOR_CLASS (seafile_check_tx_slave_proc_parent_class)->release_resource (processor);
}
static void
seafile_check_tx_slave_proc_class_init (SeafileCheckTxSlaveProcClass *klass)
{
CcnetProcessorClass *proc_class = CCNET_PROCESSOR_CLASS (klass);
proc_class->name = "check-tx-slave-proc";
proc_class->start = start;
proc_class->handle_update = handle_update;
proc_class->release_resource = release_resource;
g_type_class_add_private (klass, sizeof (SeafileCheckTxSlaveProcPriv));
}
static void
seafile_check_tx_slave_proc_init (SeafileCheckTxSlaveProc *processor)
{
}
#include "check-quota-common.h"
static void
get_branch_head (CcnetProcessor *processor)
{
SeafBranch *branch;
USE_PRIV;
branch = seaf_branch_manager_get_branch (seaf->branch_mgr,
priv->repo_id, priv->branch_name);
if (branch != NULL) {
priv->has_branch = 1;
memcpy (priv->head_id, branch->commit_id, 41);
seaf_branch_unref (branch);
priv->rsp_code = g_strdup(SC_OK);
priv->rsp_msg = g_strdup(SS_OK);
} else if (priv->type == CHECK_TX_TYPE_UPLOAD) {
priv->rsp_code = g_strdup(SC_OK);
priv->rsp_msg = g_strdup(SS_OK);
} else {
priv->rsp_code = g_strdup(SC_NO_BRANCH);
priv->rsp_msg = g_strdup(SS_NO_BRANCH);
}
}
static gboolean
check_repo_share_permission (SearpcClient *rpc_client,
const char *repo_id,
const char *user_name)
{
GList *groups, *pgroup;
GList *repos, *prepo;
CcnetGroup *group;
int group_id;
char *shared_repo_id;
gboolean ret = FALSE;
if (seaf_share_manager_check_permission (seaf->share_mgr,
repo_id,
user_name) != NULL)
return TRUE;
groups = ccnet_get_groups_by_user (rpc_client, user_name);
for (pgroup = groups; pgroup != NULL; pgroup = pgroup->next) {
group = pgroup->data;
g_object_get (group, "id", &group_id, NULL);
repos = seaf_repo_manager_get_group_repoids (seaf->repo_mgr,
group_id, NULL);
for (prepo = repos; prepo != NULL; prepo = prepo->next) {
shared_repo_id = prepo->data;
if (strcmp (shared_repo_id, repo_id) == 0) {
ret = TRUE;
break;
}
}
for (prepo = repos; prepo != NULL; prepo = prepo->next)
g_free (prepo->data);
g_list_free (repos);
if (ret)
break;
}
for (pgroup = groups; pgroup != NULL; pgroup = pgroup->next)
g_object_unref ((GObject *)pgroup->data);
g_list_free (groups);
return ret;
}
static void *
check_tx (void *vprocessor)
{
CcnetProcessor *processor = vprocessor;
USE_PRIV;
char *owner = NULL;
int org_id;
SearpcClient *rpc_client = NULL;
char *repo_id = priv->repo_id;
rpc_client = create_sync_ccnetrpc_client
(seaf->session->central_config_dir, seaf->session->config_dir, "ccnet-threaded-rpcserver");
if (!rpc_client) {
priv->rsp_code = g_strdup(SC_SERVER_ERROR);
priv->rsp_msg = g_strdup(SS_SERVER_ERROR);
goto out;
}
if (!seaf_repo_manager_repo_exists (seaf->repo_mgr, repo_id)) {
priv->rsp_code = g_strdup(SC_BAD_REPO);
priv->rsp_msg = g_strdup(SS_BAD_REPO);
goto out;
}
if (priv->type == CHECK_TX_TYPE_UPLOAD &&
check_repo_owner_quota (processor, rpc_client, repo_id) < 0)
goto out;
owner = seaf_repo_manager_get_repo_owner (seaf->repo_mgr, repo_id);
if (owner != NULL) {
/* If the user is not owner, check share permission */
if (strcmp (owner, priv->email) != 0) {
if(!check_repo_share_permission (rpc_client, repo_id, priv->email)) {
priv->rsp_code = g_strdup(SC_ACCESS_DENIED);
priv->rsp_msg = g_strdup(SS_ACCESS_DENIED);
goto out;
}
}
} else {
/* This should be a repo created in an org. */
org_id = seaf_repo_manager_get_repo_org (seaf->repo_mgr, repo_id);
if (org_id < 0 ||
!ccnet_org_user_exists (rpc_client, org_id, priv->email)) {
priv->rsp_code = g_strdup(SC_ACCESS_DENIED);
priv->rsp_msg = g_strdup(SS_ACCESS_DENIED);
goto out;
}
}
get_branch_head (processor);
out:
g_free (owner);
if (rpc_client)
free_sync_rpc_client (rpc_client);
return vprocessor;
}
static void
thread_done (void *result)
{
CcnetProcessor *processor = result;
USE_PRIV;
if (strcmp (priv->rsp_code, SC_OK) == 0) {
if (priv->has_branch) {
ccnet_processor_send_response (processor,
SC_OK, SS_OK,
priv->head_id, 41);
} else
ccnet_processor_send_response (processor, SC_OK, SS_OK, NULL, 0);
processor->state = ACCESS_GRANTED;
} else {
ccnet_processor_send_response (processor,
priv->rsp_code, priv->rsp_msg,
NULL, 0);
ccnet_processor_done (processor, FALSE);
}
}
static void
get_email_cb (void *result, void *data, GError *error)
{
char *email = result;
CcnetProcessor *processor = data;
USE_PRIV;
if (!email) {
seaf_warning ("[check tx] cannot find email for peer %s.\n",
processor->peer_id);
ccnet_processor_send_response (processor,
SC_ACCESS_DENIED, SS_ACCESS_DENIED,
NULL, 0);
ccnet_processor_done (processor, FALSE);
return;
}
priv->email = g_strdup(email);
ccnet_processor_thread_create (processor, check_tx, thread_done, processor);
}
static int
start (CcnetProcessor *processor, int argc, char **argv)
{
char *repo_id, *branch_name;
USE_PRIV;
if (argc < 4) {
ccnet_processor_send_response (processor, SC_BAD_ARGS, SS_BAD_ARGS, NULL, 0);
ccnet_processor_done (processor, FALSE);
return -1;
}
if (strcmp (argv[0], "upload") == 0) {
priv->type = CHECK_TX_TYPE_UPLOAD;
} else if (strcmp (argv[0], "download") == 0) {
priv->type = CHECK_TX_TYPE_DOWNLOAD;
} else {
ccnet_processor_send_response (processor, SC_BAD_ARGS, SS_BAD_ARGS, NULL, 0);
ccnet_processor_done (processor, FALSE);
return -1;
}
repo_id = argv[2];
branch_name = argv[3];
if (strlen(repo_id) != 36) {
ccnet_processor_send_response (processor, SC_BAD_ARGS, SS_BAD_ARGS, NULL, 0);
ccnet_processor_done (processor, FALSE);
return -1;
}
if (priv->type == CHECK_TX_TYPE_UPLOAD &&
strcmp (branch_name, "master") != 0) {
ccnet_processor_send_response (processor, SC_BAD_ARGS, SS_BAD_ARGS, NULL, 0);
ccnet_processor_done (processor, FALSE);
return -1;
}
memcpy (priv->repo_id, repo_id, 37);
priv->branch_name = g_strdup(branch_name);
ccnet_get_binding_email_async (seaf->async_ccnetrpc_client_t, processor->peer_id,
get_email_cb, processor);
return 0;
}
static void
handle_update (CcnetProcessor *processor,
char *code, char *code_msg,
char *content, int clen)
{
USE_PRIV;
char *token;
if (processor->state != ACCESS_GRANTED) {
ccnet_processor_send_response (processor,
SC_BAD_UPDATE_CODE, SS_BAD_UPDATE_CODE,
NULL, 0);
ccnet_processor_done (processor, FALSE);
return;
}
if (strncmp (code, SC_GET_TOKEN, 3) == 0) {
token = seaf_token_manager_generate_token (seaf->token_mgr,
processor->peer_id,
priv->repo_id);
ccnet_processor_send_response (processor,
SC_PUT_TOKEN, SS_PUT_TOKEN,
token, strlen(token) + 1);
g_free (token);
return;
} else if (strncmp (code, SC_GET_VERSION, 3) == 0) {
char buf[16];
int len;
len = snprintf (buf, sizeof(buf), "%d", CURRENT_PROTO_VERSION);
ccnet_processor_send_response (processor,
SC_VERSION, SS_VERSION,
buf, len + 1);
ccnet_processor_done (processor, TRUE);
return;
}
ccnet_processor_send_response (processor,
SC_BAD_UPDATE_CODE, SS_BAD_UPDATE_CODE,
NULL, 0);
ccnet_processor_done (processor, FALSE);
}
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