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fix(ChatMessage): avoid invalid read of destroyed strings, and construct C++ cache correctly!!!

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This commit is contained in:
Ronan Abhamon 2018-03-06 12:28:09 +01:00
parent cf37868b50
commit 2154c78ff3
2 changed files with 28 additions and 22 deletions
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44
src/c-wrapper/api/c-chat-message.cpp
View file

@ -23,14 +23,14 @@
#include "ortp/b64.h"
#include "c-wrapper/c-wrapper.h"
#include "address/address.h"
#include "content/content.h"
#include "content/content-type.h"
#include "c-wrapper/c-wrapper.h"
#include "chat/chat-message/chat-message-p.h"
#include "chat/chat-room/chat-room-p.h"
#include "chat/chat-room/real-time-text-chat-room-p.h"
#include "chat/notification/imdn.h"
#include "content/content-type.h"
#include "content/content.h"
// =============================================================================
@ -45,13 +45,18 @@ L_DECLARE_C_OBJECT_IMPL_WITH_XTORS(ChatMessage,
LinphoneAddress *from; // cache for shared_ptr<Address>
LinphoneAddress *to; // cache for shared_ptr<Address>
LinphoneChatMessageStateChangedCb message_state_changed_cb;
void* message_state_changed_user_data;
mutable char *contentTypeCache;
mutable std::string textContentBody;
void *message_state_changed_user_data;
struct Cache {
string contentType;
string textContentBody;
string customHeaderValue;
} mutable cache;
)
static void _linphone_chat_message_constructor (LinphoneChatMessage *msg) {
msg->cbs = linphone_chat_message_cbs_new();
new(&msg->cache) LinphoneChatMessage::Cache();
}
static void _linphone_chat_message_destructor (LinphoneChatMessage *msg) {
@ -61,8 +66,8 @@ static void _linphone_chat_message_destructor (LinphoneChatMessage *msg) {
linphone_address_unref(msg->from);
if (msg->to)
linphone_address_unref(msg->to);
if (msg->contentTypeCache)
ms_free(msg->contentTypeCache);
msg->cache.~Cache();
}
// =============================================================================
@ -160,8 +165,11 @@ void linphone_chat_message_set_file_transfer_filepath(LinphoneChatMessage *msg,
L_GET_PRIVATE_FROM_C_OBJECT(msg)->setFileTransferFilepath(L_C_TO_STRING(filepath));
}
void linphone_chat_message_add_custom_header(LinphoneChatMessage *msg, const char *header_name,
const char *header_value) {
void linphone_chat_message_add_custom_header(
LinphoneChatMessage *msg,
const char *header_name,
const char *header_value
) {
L_GET_PRIVATE_FROM_C_OBJECT(msg)->addSalCustomHeader(L_C_TO_STRING(header_name), L_C_TO_STRING(header_value));
}
@ -170,7 +178,8 @@ void linphone_chat_message_remove_custom_header(LinphoneChatMessage *msg, const
}
const char *linphone_chat_message_get_custom_header(LinphoneChatMessage *msg, const char *header_name) {
return L_STRING_TO_C(L_GET_PRIVATE_FROM_C_OBJECT(msg)->getSalCustomHeaderValue(L_C_TO_STRING(header_name)));
msg->cache.customHeaderValue = L_GET_PRIVATE_FROM_C_OBJECT(msg)->getSalCustomHeaderValue(L_C_TO_STRING(header_name));
return L_STRING_TO_C(msg->cache.customHeaderValue);
}
const LinphoneErrorInfo *linphone_chat_message_get_error_info(const LinphoneChatMessage *msg) {
@ -229,8 +238,8 @@ const char *linphone_chat_message_get_text_content(const LinphoneChatMessage *ms
const LinphonePrivate::Content *content = L_GET_PRIVATE_FROM_C_OBJECT(msg)->getTextContent();
if (content->isEmpty())
return nullptr;
msg->textContentBody = content->getBodyAsString();
return L_STRING_TO_C(msg->textContentBody);
msg->cache.textContentBody = content->getBodyAsString();
return L_STRING_TO_C(msg->cache.textContentBody);
}
// =============================================================================
@ -257,12 +266,9 @@ void * linphone_chat_message_get_message_state_changed_cb_user_data(LinphoneChat
// Structure has changed, hard to keep the behavior
// =============================================================================
const char * linphone_chat_message_get_content_type(LinphoneChatMessage *msg) {
if (msg->contentTypeCache) {
ms_free(msg->contentTypeCache);
}
msg->contentTypeCache = ms_strdup(L_STRING_TO_C(L_GET_PRIVATE_FROM_C_OBJECT(msg)->getContentType().asString()));
return msg->contentTypeCache;
const char *linphone_chat_message_get_content_type(LinphoneChatMessage *msg) {
msg->cache.contentType = L_GET_PRIVATE_FROM_C_OBJECT(msg)->getContentType().asString();
return L_STRING_TO_C(msg->cache.contentType);
}
void linphone_chat_message_set_content_type(LinphoneChatMessage *msg, const char *content_type) {

6
src/chat/chat-message/chat-message-p.h
View file

@ -102,9 +102,9 @@ public:
SalCustomHeader *getSalCustomHeaders () const;
void setSalCustomHeaders (SalCustomHeader *headers);
void addSalCustomHeader (const std::string& name, const std::string& value);
void removeSalCustomHeader (const std::string& name);
std::string getSalCustomHeaderValue (const std::string& name);
void addSalCustomHeader (const std::string &name, const std::string &value);
void removeSalCustomHeader (const std::string &name);
std::string getSalCustomHeaderValue (const std::string &name);
void loadFileTransferUrlFromBodyToContent ();