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Added webReplyGet* funcs. Added WebReplyType enum and _webTLVReadVarSize.

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This commit is contained in:
yellows8 2019-03-02 20:44:22 -05:00
parent 2ed160624a
commit b19c35fe2c
2 changed files with 156 additions and 1 deletions
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59
nx/include/switch/applets/web.h
View File

@ -74,7 +74,7 @@ typedef struct {
WebCommonTLVStorage storage;
} WebCommonReply;
/// Types for \ref WebArgTLV.
/// Types for \ref WebArgTLV, input storage.
typedef enum {
WebArgType_Url = 0x1, ///< [1.0.0+] String, size 0xC00. Initial URL.
WebArgType_CallbackUrl = 0x3, ///< [1.0.0+] String, size 0x400.
@ -122,6 +122,19 @@ typedef enum {
WebArgType_PageScrollIndicator = 0x36, ///< [5.0.0+] u8 bool
} WebArgType;
/// Types for \ref WebArgTLV, output storage.
/// Official user-processes doesn't check the TLV size for any of these.
typedef enum {
WebReplyType_ExitReason = 0x1, ///< [3.0.0+] u32 ShareExitReason
WebReplyType_LastUrl = 0x2, ///< [3.0.0+] string
WebReplyType_LastUrlSize = 0x3, ///< [3.0.0+] u64
WebReplyType_SharePostResult = 0x4, ///< [3.0.0+] u32 SharePostResult
WebReplyType_PostServiceName = 0x5, ///< [3.0.0+] string
WebReplyType_PostServiceNameSize = 0x6, ///< [3.0.0+] u64
WebReplyType_PostId = 0x7, ///< [3.0.0+] string
WebReplyType_PostIdSize = 0x8, ///< [3.0.0+] u64
} WebReplyType;
/// This controls the initial page for ShareApplet, used by \ref webShareCreate.
typedef enum {
WebShareStartPage_Default = 0, ///< The default "/" page.
@ -474,3 +487,47 @@ Result webConfigSetPageScrollIndicator(WebCommonConfig* config, bool flag);
*/
Result webConfigShow(WebCommonConfig* config, WebCommonReply *out);
/**
* @brief Gets the ExitReason from the specified reply.
* @param reply WebCommonReply object.
* @param exitReason Output exitReason
*/
Result webReplyGetExitReason(WebCommonReply *reply, u32 *exitReason);
/**
* @brief Gets the LastUrl from the specified reply.
* @note If you want to allocate a string buffer on heap, you can call this with outstr=NULL/outstr_maxsize=0 to get the out_size, then call it again with the allocated buffer.
* @param outstr Output string buffer. If NULL, the string is not loaded.
* @param outstr_maxsize Size of the buffer, including NUL-terminator. If outstr is set, this size must be >1. The size used for the actual string-copy is this size-1, to make sure the output is NUL-terminated (the entire buffer is cleared first).
* @param out_size Output string length including NUL-terminator, for the original input string in the reply loaded from a separate size field.
*/
Result webReplyGetLastUrl(WebCommonReply *reply, char *outstr, size_t outstr_maxsize, size_t *out_size);
/**
* @brief Gets the SharePostResult from the specified reply.
* @note Only available with reply data from ShareApplet on [3.0.0+].
* @param reply WebCommonReply object.
* @param sharePostResult Output sharePostResult
*/
Result webReplyGetSharePostResult(WebCommonReply *reply, u32 *sharePostResult);
/**
* @brief Gets the PostServiceName from the specified reply.
* @note Only available with reply data from ShareApplet on [3.0.0+].
* @note If you want to allocate a string buffer on heap, you can call this with outstr=NULL/outstr_maxsize=0 to get the out_size, then call it again with the allocated buffer.
* @param outstr Output string buffer. If NULL, the string is not loaded.
* @param outstr_maxsize Size of the buffer, including NUL-terminator. If outstr is set, this size must be >1. The size used for the actual string-copy is this size-1, to make sure the output is NUL-terminated (the entire buffer is cleared first).
* @param out_size Output string length including NUL-terminator, for the original input string in the reply loaded from a separate size field.
*/
Result webReplyGetPostServiceName(WebCommonReply *reply, char *outstr, size_t outstr_maxsize, size_t *out_size);
/**
* @brief Gets the PostId from the specified reply.
* @note Only available with reply data from ShareApplet on [3.0.0+].
* @note If you want to allocate a string buffer on heap, you can call this with outstr=NULL/outstr_maxsize=0 to get the out_size, then call it again with the allocated buffer.
* @param outstr Output string buffer. If NULL, the string is not loaded.
* @param outstr_maxsize Size of the buffer, including NUL-terminator. If outstr is set, this size must be >1. The size used for the actual string-copy is this size-1, to make sure the output is NUL-terminated (the entire buffer is cleared first).
* @param out_size Output string length including NUL-terminator, for the original input string in the reply loaded from a separate size field.
*/
Result webReplyGetPostId(WebCommonReply *reply, char *outstr, size_t outstr_maxsize, size_t *out_size);

98
nx/source/applets/web.c
View File

@ -179,6 +179,43 @@ static Result _webTLVRead(WebCommonTLVStorage *storage, u16 type, void* argdata,
return 0;
}
static Result _webTLVReadVarSize(WebCommonTLVStorage *storage, u16 type, void* argdata, size_t argdata_size) {
Result rc = MAKERESULT(Module_Libnx, LibnxError_BadInput);
size_t i, count, offset;
u8 *dataptr = storage->data;
WebArgHeader *hdr = (WebArgHeader*)dataptr;
WebArgTLV *tlv;
size_t size = sizeof(storage->data);
offset = sizeof(WebArgHeader);
if (size < offset) return rc;
count = hdr->total_entries;
tlv = (WebArgTLV*)&dataptr[offset];
for (i=0; i<count; i++) {
if (size < offset + sizeof(WebArgTLV)) return rc;
tlv = (WebArgTLV*)&dataptr[offset];
if (tlv->type == type) {
if (argdata_size > tlv->size) argdata_size = tlv->size;
break;
}
offset+= sizeof(WebArgTLV) + tlv->size;
if (size < offset) return rc;
}
if (i==count) return MAKERESULT(Module_Libnx, LibnxError_NotFound);
if (size < offset + sizeof(WebArgTLV) + argdata_size) return rc;
offset+= sizeof(WebArgTLV);
memcpy(argdata, &dataptr[offset], argdata_size);
return 0;
}
static Result _webTLVSet(WebCommonConfig* config, u16 type, const void* argdata, u16 argdata_size) {
return _webTLVWrite(&config->arg, type, argdata, argdata_size, argdata_size);
}
@ -526,3 +563,64 @@ Result webConfigShow(WebCommonConfig* config, WebCommonReply *out) {
return _webShow(config->appletid, config->version, &config->arg, sizeof(config->arg), reply, size);
}
// For strings only available via TLVs.
static Result _webReplyGetString(WebCommonReply *reply, WebReplyType str_type, WebReplyType strsize_type, char *outstr, size_t outstr_maxsize, size_t *out_size) {
Result rc=0;
if (outstr && outstr_maxsize <= 1) return MAKERESULT(Module_Libnx, LibnxError_BadInput);
if (outstr) memset(outstr, 0, outstr_maxsize);
if (!reply->type) {
rc = MAKERESULT(Module_Libnx, LibnxError_BadInput);
}
else {
if (outstr) rc = _webTLVReadVarSize(&reply->storage, str_type, outstr, outstr_maxsize-1);
if (R_SUCCEEDED(rc) && out_size) rc = _webTLVRead(&reply->storage, strsize_type, out_size, sizeof(*out_size));
}
return rc;
}
Result webReplyGetExitReason(WebCommonReply *reply, u32 *exitReason) {
if (!reply->type) {
*exitReason = reply->ret.exitReason;
}
else {
return _webTLVRead(&reply->storage, WebReplyType_ExitReason, exitReason, sizeof(*exitReason));
}
return 0;
}
Result webReplyGetLastUrl(WebCommonReply *reply, char *outstr, size_t outstr_maxsize, size_t *out_size) {
Result rc=0;
if (outstr && outstr_maxsize <= 1) return MAKERESULT(Module_Libnx, LibnxError_BadInput);
if (outstr) memset(outstr, 0, outstr_maxsize);
if (!reply->type) {
if (outstr) strncpy(outstr, reply->ret.lastUrl, outstr_maxsize-1);
if (out_size) *out_size = reply->ret.lastUrlSize;
}
else {
if (outstr) rc = _webTLVReadVarSize(&reply->storage, WebReplyType_LastUrl, outstr, outstr_maxsize-1);
if (R_SUCCEEDED(rc) && out_size) rc = _webTLVRead(&reply->storage, WebReplyType_LastUrlSize, out_size, sizeof(*out_size));
}
return rc;
}
Result webReplyGetSharePostResult(WebCommonReply *reply, u32 *sharePostResult) {
if (reply->type) {
return _webTLVRead(&reply->storage, WebReplyType_SharePostResult, sharePostResult, sizeof(*sharePostResult));
}
return MAKERESULT(Module_Libnx, LibnxError_BadInput);
}
Result webReplyGetPostServiceName(WebCommonReply *reply, char *outstr, size_t outstr_maxsize, size_t *out_size) {
return _webReplyGetString(reply, WebReplyType_PostServiceName, WebReplyType_PostServiceNameSize, outstr, outstr_maxsize, out_size);
}
Result webReplyGetPostId(WebCommonReply *reply, char *outstr, size_t outstr_maxsize, size_t *out_size) {
return _webReplyGetString(reply, WebReplyType_PostId, WebReplyType_PostIdSize, outstr, outstr_maxsize, out_size);
}