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MeasureWebParser.cpp
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/* Copyright (C) 2005 Rainmeter Project Developers
*
* This Source Code Form is subject to the terms of the GNU General Public
* License; either version 2 of the License, or (at your option) any later
* version. If a copy of the GPL was not distributed with this file, You can
* obtain one at <https://www.gnu.org/licenses/gpl-2.0.html>. */
#include "StdAfx.h"
#include "MeasureWebParser.h"
#include "Rainmeter.h"
#include "System.h"
#include "pcre/config.h"
#include "pcre/pcre.h"
#include "../Common/CharacterEntityReference.h"
#include "../Common/StringUtil.h"
#include "../Common/FileUtil.h"
void ShowError(MeasureWebParser* measure, WCHAR* description);
class ProxyCachePool
{
public:
ProxyCachePool(LPCWSTR globalProxyName = nullptr, LPCWSTR globalUserAgent = nullptr) :
m_GlobalProxyName((globalProxyName && *globalProxyName) ? globalProxyName : L"/auto"),
m_GlobalUserAgent((globalUserAgent && *globalUserAgent) ? globalUserAgent : L"Rainmeter WebParser plugin")
{
m_GlobalProxyCache = new ProxyCache(
CreateProxy(m_GlobalProxyName.c_str(), m_GlobalUserAgent.c_str()),
m_GlobalUserAgent,
true);
_wcslwr(&m_GlobalProxyName[0]);
m_CacheMap.emplace(m_GlobalProxyName, m_GlobalProxyCache);
//LogDebugF(L"* ADD-GLOBAL: key=%s, handle=0x%p, ref=new, agent=%s", m_GlobalProxyName.c_str(),
// m_GlobalProxyCache->GetCache(), m_GlobalUserAgent.c_str());
}
~ProxyCachePool()
{
for (auto iter = m_CacheMap.begin(); iter != m_CacheMap.end(); ++iter)
{
ProxyCache* cache = (*iter).second;
//LogDebugF(L"* FORCE-REMOVE: key=%s, global=%i, ref=%i, agent=%s", (*iter).first.c_str(),
// cache->IsGlobal(), cache->GetRef(), (*iter).second->GetAgent().c_str());
delete cache;
cache = nullptr;
}
}
HINTERNET GetCache(const std::wstring& proxyName, const std::wstring& userAgent)
{
ProxyCache* cache = nullptr;
std::wstring key = proxyName.empty() ? m_GlobalProxyName : proxyName;
std::wstring agent = userAgent.empty() ? m_GlobalUserAgent : userAgent;
_wcslwr(&key[0]);
bool found = false;
auto iters = m_CacheMap.equal_range(key);
for (auto& it = iters.first; it != iters.second; ++it)
{
if (StringUtil::CaseInsensitiveFind(it->second->GetAgent(), agent) != std::wstring::npos)
{
found = true;
cache = it->second;
break;
}
}
if (!found)
{
// Create new proxy
cache = new ProxyCache(CreateProxy(key.c_str(), agent.c_str()), agent);
m_CacheMap.emplace(key, cache);
//LogDebugF(L"* ADD: key=%s, handle=0x%p, ref=new, agent=%s", key.c_str(), cache->GetCache(), agent.c_str());
return cache->GetCache();
}
// Use proxy cache
cache->AddRef();
//LogDebugF(L"* ADD-REF: key=%s, handle=0x%p, global=%i, ref=%i, agent=%s",
// cache->IsGlobal() ? m_GlobalProxyName.c_str() : proxyName.c_str(), cache->GetCache(),
// cache->IsGlobal(), cache->GetRef(), agent.c_str());
return cache->GetCache();
}
void RemoveCache(const std::wstring& proxyName, const std::wstring& userAgent)
{
std::wstring key = proxyName.empty() ? m_GlobalProxyName : proxyName;
std::wstring agent = userAgent.empty() ? m_GlobalUserAgent : userAgent;
if (!proxyName.empty())
{
_wcslwr(&key[0]);
}
auto iters = m_CacheMap.equal_range(key);
for (auto& it = iters.first; it != iters.second; ++it)
{
if (StringUtil::CaseInsensitiveFind(it->second->GetAgent(), agent) != std::wstring::npos)
{
ProxyCache* cache = it->second;
cache->Release();
//LogDebugF(L"* REMOVE: key=%s, global=%i, ref=%i, agent=%s",
// key.c_str(), cache->IsGlobal(), cache->GetRef(), agent.c_str());
if (cache->IsInvalid())
{
//LogDebugF(L"* EMPTY-ERASE: key=%s, agent=%s", key.c_str(), agent.c_str());
m_CacheMap.erase(it);
delete cache;
cache = nullptr;
}
break;
}
}
}
private:
HINTERNET CreateProxy(LPCWSTR proxyName, LPCWSTR userAgent)
{
DWORD proxyType;
LPCWSTR proxyServer;
if (_wcsicmp(proxyName, L"/auto") == 0)
{
proxyType = INTERNET_OPEN_TYPE_PRECONFIG;
proxyServer = nullptr;
}
else if (_wcsicmp(proxyName, L"/none") == 0)
{
proxyType = INTERNET_OPEN_TYPE_DIRECT;
proxyServer = nullptr;
}
else
{
proxyType = INTERNET_OPEN_TYPE_PROXY;
proxyServer = proxyName;
}
HINTERNET handle = InternetOpen(userAgent, proxyType, proxyServer, nullptr, 0);
if (handle)
{
if (GetRainmeter().GetDebug())
{
LogDebugF(
L"ProxyServer=\"%s\" (type=%s, handle=0x%p)",
proxyName,
proxyType == INTERNET_OPEN_TYPE_PRECONFIG ? L"PRECONFIG" : proxyType == INTERNET_OPEN_TYPE_DIRECT ? L"DIRECT" : L"PROXY",
handle);
LogDebugF(L"Useragent=\"%s\"", userAgent);
}
}
else
{
ShowError(nullptr, L"InternetOpen error");
}
return handle;
}
class ProxyCache
{
public:
ProxyCache(HINTERNET handle, std::wstring agent, bool isGlobal = false) :
m_Handle(handle), m_Agent(agent), m_IsGlobal(isGlobal), m_Ref(1) {}
~ProxyCache() { Dispose(); }
void AddRef() { if (!IsInvalid()) { ++m_Ref; } }
void Release() { if (m_Ref > 0) { --m_Ref; } if (IsInvalid()) { Dispose(); } }
bool IsGlobal() { return m_IsGlobal; }
bool IsInvalid() { return (m_Ref <= 0 && !IsGlobal()); }
//int GetRef() { return m_Ref; }
HINTERNET GetCache() { return m_Handle; }
std::wstring& GetAgent() { return m_Agent; }
private:
ProxyCache() = delete;
ProxyCache(const ProxyCache& cache) = delete;
void Dispose() { if (m_Handle) { InternetCloseHandle(m_Handle); m_Handle = nullptr; } }
HINTERNET m_Handle;
std::wstring m_Agent;
bool m_IsGlobal;
int m_Ref;
};
std::unordered_multimap<std::wstring, ProxyCache*> m_CacheMap;
ProxyCache* m_GlobalProxyCache;
std::wstring m_GlobalProxyName;
std::wstring m_GlobalUserAgent;
};
BYTE* DownloadUrl(HINTERNET handle, std::wstring& url, std::wstring& headers, DWORD* dataSize, DWORD flags);
CRITICAL_SECTION g_CriticalSection;
ProxyCachePool* g_ProxyCachePool = nullptr;
UINT g_InstanceCount = 0U;
static std::vector<MeasureWebParser*> g_Measures;
#define OVECCOUNT 300 // should be a multiple of 3
void SetupGlobalProxySetting()
{
if (!g_ProxyCachePool)
{
WCHAR server[MAX_PATH] = { 0 };
WCHAR agent[MAX_PATH] = { 0 };
LPCWSTR file = GetRainmeter().GetDataFile().c_str();
if (GetPrivateProfileString(L"WebParser", L"ProxyServer", nullptr, server, MAX_PATH, file) == 0)
{
GetPrivateProfileString(L"WebParser.dll", L"ProxyServer", nullptr, server, MAX_PATH, file); // For backwards compatibility
}
if (GetPrivateProfileString(L"WebParser", L"UserAgent", nullptr, agent, MAX_PATH, file) == 0)
{
GetPrivateProfileString(L"WebParser.dll", L"UserAgent", nullptr, agent, MAX_PATH, file); // For backwards compatibility
}
g_ProxyCachePool = new ProxyCachePool(server, agent);
}
}
void ClearGlobalProxySetting()
{
delete g_ProxyCachePool;
g_ProxyCachePool = nullptr;
}
void SetupProxySetting(ProxySetting& setting, const std::wstring proxyServer, const std::wstring userAgent)
{
if (g_ProxyCachePool)
{
setting.server = proxyServer;
setting.agent = userAgent;
setting.handle = g_ProxyCachePool->GetCache(setting.server, setting.agent);
}
}
void ClearProxySetting(ProxySetting& setting)
{
if (g_ProxyCachePool)
{
g_ProxyCachePool->RemoveCache(setting.server, setting.agent);
}
setting.handle = nullptr;
setting.server.clear();
setting.agent.clear();
}
MeasureWebParser::MeasureWebParser(Skin* skin, const WCHAR* name) : Measure(skin, name),
m_ThreadHandle(),
m_DlThreadHandle(),
m_Codepage(),
m_StringIndex(),
m_StringIndex2(),
m_DecodeCharacterReference(),
m_DecodeCodePoints(false),
m_Debug(),
m_LogSubstringErrors(),
m_UpdateRate(),
m_UpdateCounter(),
m_Download(),
m_ForceReload(),
m_InternetOpenUrlFlags(INTERNET_FLAG_RESYNCHRONIZE)
{
g_Measures.push_back(this);
if (g_InstanceCount == 0)
{
System::InitializeCriticalSection(&g_CriticalSection);
SetupGlobalProxySetting();
}
// No DynamicVariables support for ProxyServer or UserAgent
SetupProxySetting(
m_Proxy,
GetSkin()->GetParser().ReadString(name, L"ProxyServer", L""),
GetSkin()->GetParser().ReadString(name, L"UserAgent", L""));
++g_InstanceCount;
}
MeasureWebParser::~MeasureWebParser()
{
if (m_ThreadHandle)
{
// Thread is killed inside critical section so that itself is not inside one when it is terminated
EnterCriticalSection(&g_CriticalSection);
TerminateThread(m_ThreadHandle, 0);
m_ThreadHandle = nullptr;
LeaveCriticalSection(&g_CriticalSection);
}
if (m_DlThreadHandle)
{
// Thread is killed inside critical section so that itself is not inside one when it is terminated
EnterCriticalSection(&g_CriticalSection);
TerminateThread(m_DlThreadHandle, 0);
m_DlThreadHandle = nullptr;
LeaveCriticalSection(&g_CriticalSection);
}
if (m_DownloadFile.empty()) // cache mode
{
if (!m_DownloadedFile.empty())
{
// Delete the file
DeleteFile(m_DownloadedFile.c_str());
}
}
ClearProxySetting(m_Proxy);
auto iter = std::find(g_Measures.begin(), g_Measures.end(), this);
g_Measures.erase(iter);
--g_InstanceCount;
if (g_InstanceCount == 0)
{
// Last one, close all handles
ClearGlobalProxySetting();
// Last instance deletes the critical section
DeleteCriticalSection(&g_CriticalSection);
}
}
void MeasureWebParser::ReadOptions(ConfigParser& parser, const WCHAR* section)
{
EnterCriticalSection(&g_CriticalSection);
Measure::ReadOptions(parser, section);
std::wstring url = parser.ReadString(section, L"Url", L"", false);
// Parse new-style variables without parsing old-style section variables
if (parser.ContainsNewStyleVariable(url))
{
parser.ParseVariables(url, ConfigParser::VariableType::Section);
}
m_Url = url;
m_Headers.clear();
size_t hNum = 1ULL;
std::wstring hOption = L"Header";
std::wstring hValue = parser.ReadString(section, hOption.c_str(), L"");
while (!hValue.empty())
{
m_Headers += hValue + L"\r\n";
hOption = L"Header" + std::to_wstring(++hNum);
hValue = parser.ReadString(section, hOption.c_str(), L"");
}
if (!m_Headers.empty())
{
m_Headers += L"\r\n"; // Append "\r\n" to last header to denote end of header section
}
m_RegExp = parser.ReadString(section, L"RegExp", L"");
m_FinishAction = parser.ReadString(section, L"FinishAction", L"", false);
m_OnRegExpErrAction = parser.ReadString(section, L"OnRegExpErrorAction", L"", false);
m_OnConnectErrAction = parser.ReadString(section, L"OnConnectErrorAction", L"", false);
m_OnDownloadErrAction = parser.ReadString(section, L"OnDownloadErrorAction", L"", false);
m_ErrorString = parser.ReadString(section, L"ErrorString", L"");
m_LogSubstringErrors = parser.ReadBool(section, L"LogSubstringErrors", true);
int index = parser.ReadInt(section, L"StringIndex", 0);
m_StringIndex = index < 0 ? 0 : index;
index = parser.ReadInt(section, L"StringIndex2", 0);
m_StringIndex2 = index < 0 ? 0 : index;
m_DecodeCharacterReference = parser.ReadInt(section, L"DecodeCharacterReference", 0);
m_DecodeCodePoints = parser.ReadBool(section, L"DecodeCodePoints", false);
m_UpdateRate = parser.ReadInt(section, L"UpdateRate", 600);
m_Codepage = parser.ReadInt(section, L"CodePage", 0);
if (m_Codepage == 0)
{
m_Codepage = CP_UTF8;
}
m_Download = parser.ReadBool(section, L"Download", false);
if (m_Download)
{
m_DownloadFolder = L"DownloadFile\\";
GetSkin()->MakePathAbsolute(m_DownloadFolder);
m_DownloadFile = parser.ReadString(section, L"DownloadFile", L"");
}
else
{
m_DownloadFile.clear();
}
m_Debug = parser.ReadInt(section, L"Debug", 0);
if (m_Debug == 2)
{
m_DebugFileLocation = parser.ReadString(section, L"Debug2File", L"WebParserDump.txt");
GetSkin()->MakePathAbsolute(m_DebugFileLocation);
LogNoticeF(this, L"Debug file: %s", m_DebugFileLocation.c_str());
}
{
m_ForceReload = parser.ReadBool(section, L"ForceReload", false); // Deprecated
m_InternetOpenUrlFlags = m_ForceReload ? INTERNET_FLAG_RELOAD : INTERNET_FLAG_RESYNCHRONIZE;
std::wstring szFlags = parser.ReadString(section, L"Flags", L"");
if (!szFlags.empty())
{
// Flags: https://docs.microsoft.com/en-us/windows/win32/api/wininet/nf-wininet-internetopenurlw#parameters
std::vector<std::wstring> tokens = ConfigParser::Tokenize(szFlags, L"|");
for (const auto& token : tokens)
{
const WCHAR* flag = token.c_str();
if (_wcsicmp(flag, L"ForceReload") == 0)
{
m_InternetOpenUrlFlags |= INTERNET_FLAG_RELOAD;
}
else if (_wcsicmp(flag, L"Resync") == 0)
{
m_InternetOpenUrlFlags |= INTERNET_FLAG_RESYNCHRONIZE;
}
else if (_wcsicmp(flag, L"NoCookies") == 0)
{
m_InternetOpenUrlFlags |= INTERNET_FLAG_NO_COOKIES;
}
else if (_wcsicmp(flag, L"Hyperlink") == 0)
{
m_InternetOpenUrlFlags |= INTERNET_FLAG_HYPERLINK;
}
else if (_wcsicmp(flag, L"TempFile") == 0)
{
m_InternetOpenUrlFlags |= INTERNET_FLAG_NEED_FILE;
}
else if (_wcsicmp(flag, L"NoAuth") == 0)
{
m_InternetOpenUrlFlags |= INTERNET_FLAG_NO_AUTH;
}
else if (_wcsicmp(flag, L"NoCacheWrite") == 0)
{
m_InternetOpenUrlFlags |= INTERNET_FLAG_NO_CACHE_WRITE;
}
else if (_wcsicmp(flag, L"PragmaNoCache") == 0)
{
m_InternetOpenUrlFlags |= INTERNET_FLAG_PRAGMA_NOCACHE;
}
else if (_wcsicmp(flag, L"Secure") == 0)
{
m_InternetOpenUrlFlags |= INTERNET_FLAG_SECURE;
}
else if (_wcsicmp(flag, L"IgnoreCertName") == 0)
{
m_InternetOpenUrlFlags |= INTERNET_FLAG_IGNORE_CERT_CN_INVALID;
}
else if (_wcsicmp(flag, L"IgnoreCertDate") == 0)
{
m_InternetOpenUrlFlags |= INTERNET_FLAG_IGNORE_CERT_DATE_INVALID;
}
else if (_wcsicmp(flag, L"IgnoreHTTPRedirect") == 0)
{
m_InternetOpenUrlFlags |= INTERNET_FLAG_IGNORE_REDIRECT_TO_HTTP;
}
else if (_wcsicmp(flag, L"IgnoreHTTPSRedirect") == 0)
{
m_InternetOpenUrlFlags |= INTERNET_FLAG_IGNORE_REDIRECT_TO_HTTPS;
}
else
{
LogErrorF(this, L"Invalid flag: %s", flag);
}
}
}
}
LeaveCriticalSection(&g_CriticalSection);
}
void MeasureWebParser::UpdateValue()
{
m_Value = 0.0; // Default "number" value to 0
if (m_Download && m_RegExp.empty() && m_Url.find(L'[') == std::wstring::npos)
{
// If RegExp is empty download the file that is pointed by the Url
if (m_DlThreadHandle == nullptr)
{
if (m_UpdateCounter == 0U)
{
// Launch a new thread to fetch the web data
unsigned int id = 0U;
HANDLE threadHandle = (HANDLE)_beginthreadex(nullptr, 0U, NetworkDownloadThreadProc, this, 0U, &id);
if (threadHandle)
{
m_DlThreadHandle = threadHandle;
}
}
++m_UpdateCounter;
if (m_UpdateCounter >= m_UpdateRate)
{
m_UpdateCounter = 0U;
}
}
// Else download the file pointed by the result string (this is done later)
}
else
{
// Make sure that the thread is not writing to the result at the same time
EnterCriticalSection(&g_CriticalSection);
if (!m_ResultString.empty())
{
m_Value = wcstod(m_ResultString.c_str(), nullptr);
}
LeaveCriticalSection(&g_CriticalSection);
if (m_Url.size() > 0ULL && m_Url.find(L'[') == std::wstring::npos)
{
// This is not a reference; need to update.
if (m_ThreadHandle == nullptr && m_DlThreadHandle == nullptr)
{
if (m_UpdateCounter == 0U)
{
// Launch a new thread to fetch the web data
unsigned int id = 0U;
HANDLE threadHandle = (HANDLE)_beginthreadex(nullptr, 0U, NetworkThreadProc, this, 0U, &id);
if (threadHandle)
{
m_ThreadHandle = threadHandle;
}
}
++m_UpdateCounter;
if (m_UpdateCounter >= m_UpdateRate)
{
m_UpdateCounter = 0U;
}
}
}
}
}
const WCHAR* MeasureWebParser::GetStringValue()
{
static std::wstring s_ResultString;
EnterCriticalSection(&g_CriticalSection);
if (m_Download)
{
s_ResultString = m_DownloadedFile;
}
else
{
s_ResultString = m_ResultString;
}
LeaveCriticalSection(&g_CriticalSection);
return CheckSubstitute(s_ResultString.c_str());
}
// Fetches the data from the net and parses the page
unsigned __stdcall MeasureWebParser::NetworkThreadProc(void* pParam)
{
auto* measure = (MeasureWebParser*)pParam;
DWORD dwSize = 0UL;
bool isDebugging = GetRainmeter().GetDebug();
if (isDebugging) LogDebugF(measure, L"Fetching: %s", measure->m_Url.c_str());
BYTE* data = DownloadUrl(measure->m_Proxy.handle, measure->m_Url, measure->m_Headers, &dwSize, measure->m_InternetOpenUrlFlags);
if (!data)
{
ShowError(measure, L"Fetch error");
if (!measure->m_OnConnectErrAction.empty())
{
GetRainmeter().DelayedExecuteCommand(measure->m_OnConnectErrAction.c_str(), measure->GetSkin());
}
}
else
{
if (isDebugging) LogDebugF(measure, L"Fetching: Success!");
if (measure->m_Debug == 2)
{
// Dump to a file
FILE* file = _wfopen(measure->m_DebugFileLocation.c_str(), L"wb");
if (file)
{
fwrite(data, sizeof(BYTE), dwSize, file);
fclose(file);
}
else
{
LogErrorF(measure, L"Failed to dump debug data");
}
}
if (isDebugging) LogDebugF(measure, L"Parsing data...");
measure->ParseData(data, dwSize);
if (isDebugging) LogDebugF(measure, L"Parsing data...done!");
free(data);
data = nullptr;
}
EnterCriticalSection(&g_CriticalSection);
CloseHandle(measure->m_ThreadHandle);
measure->m_ThreadHandle = 0;
LeaveCriticalSection(&g_CriticalSection);
return 0; // thread completed successfully
}
void MeasureWebParser::ParseData(const BYTE* rawData, DWORD rawSize, bool utf16Data)
{
const int UTF16_CODEPAGE = 1200;
if (m_Codepage == UTF16_CODEPAGE)
{
utf16Data = true;
}
const char* error = nullptr;
int erroffset = 0;
int ovector[OVECCOUNT] = { 0 };
int rc = 0;
bool doErrorAction = false;
// Compile the regular expression in the first argument
pcre16* re = pcre16_compile(
(PCRE_SPTR16)m_RegExp.c_str(),
PCRE_UTF16, &error, &erroffset, nullptr);
if (re != nullptr)
{
// Compilation succeeded: match the subject in the second argument
std::wstring buffer;
auto data = (const WCHAR*)rawData;
DWORD dataLength = rawSize / 2;
if (!utf16Data)
{
buffer = StringUtil::Widen((LPCSTR)rawData, rawSize, m_Codepage);
data = buffer.c_str();
dataLength = (DWORD)buffer.length();
}
rc = pcre16_exec(re, nullptr, (PCRE_SPTR16)data, dataLength, 0, 0, ovector, OVECCOUNT);
if (rc >= 0)
{
if (rc == 0)
{
// The output vector wasn't big enough
LogErrorF(this, L"Too many substrings");
}
else
{
if (m_StringIndex < rc)
{
if (GetRainmeter().GetDebug() && m_Debug != 0)
{
for (int i = 0; i < rc; ++i)
{
const WCHAR* match = data + ovector[2 * i];
const int matchLen = min(ovector[2 * i + 1] - ovector[2 * i], 256);
LogDebugF(this, L"Index %2d: %.*s", i, matchLen, match);
}
}
const WCHAR* match = data + ovector[2 * m_StringIndex];
int matchLen = ovector[2 * m_StringIndex + 1] - ovector[2 * m_StringIndex];
EnterCriticalSection(&g_CriticalSection);
m_ResultString.assign(match, matchLen);
CharacterEntityReference::Decode(m_ResultString, m_DecodeCharacterReference, m_DecodeCodePoints);
LeaveCriticalSection(&g_CriticalSection);
}
else
{
if (m_LogSubstringErrors) LogWarningF(this, L"Not enough substrings");
// Clear the old result
EnterCriticalSection(&g_CriticalSection);
m_ResultString.clear();
if (m_Download)
{
if (m_DownloadFile.empty()) // cache mode
{
if (!m_DownloadedFile.empty())
{
// Delete old downloaded file
DeleteFile(m_DownloadedFile.c_str());
}
}
m_DownloadedFile.clear();
}
LeaveCriticalSection(&g_CriticalSection);
}
// Update the references
auto i = g_Measures.begin();
std::wstring compareStr = L"[";
compareStr += GetOriginalName();
compareStr += L']';
for ( ; i != g_Measures.end(); ++i)
{
if (GetSkin() == (*i)->GetSkin() &&
StringUtil::CaseInsensitiveFind((*i)->m_Url, compareStr) != std::wstring::npos)
{
if ((*i)->m_StringIndex < rc)
{
const WCHAR* match = data + ovector[2 * (*i)->m_StringIndex];
int matchLen = ovector[2 * (*i)->m_StringIndex + 1] - ovector[2 * (*i)->m_StringIndex];
if (!(*i)->m_RegExp.empty())
{
// Change the index and parse the substring
int index = (*i)->m_StringIndex;
(*i)->m_StringIndex = (*i)->m_StringIndex2;
(*i)->ParseData((BYTE*)match, matchLen * 2, true);
(*i)->m_StringIndex = index;
}
else
{
// Set the result
EnterCriticalSection(&g_CriticalSection);
// Substitude the [measure] with result
(*i)->m_ResultString = (*i)->m_Url;
(*i)->m_ResultString.replace(
StringUtil::CaseInsensitiveFind((*i)->m_ResultString, compareStr),
compareStr.size(), match, matchLen);
CharacterEntityReference::Decode((*i)->m_ResultString, (*i)->m_DecodeCharacterReference, (*i)->m_DecodeCodePoints);
// Start download threads for the references
if ((*i)->m_Download)
{
// Start the download thread
unsigned int id = 0U;
HANDLE threadHandle = (HANDLE)_beginthreadex(nullptr, 0U, NetworkDownloadThreadProc, (*i), 0U, &id);
if (threadHandle)
{
(*i)->m_DlThreadHandle = threadHandle;
}
}
LeaveCriticalSection(&g_CriticalSection);
}
}
else
{
if (m_LogSubstringErrors) LogWarningF(*i, L"Not enough substrings");
// Clear the old result
EnterCriticalSection(&g_CriticalSection);
(*i)->m_ResultString.clear();
if ((*i)->m_Download)
{
if ((*i)->m_DownloadFile.empty()) // cache mode
{
if (!(*i)->m_DownloadedFile.empty())
{
// Delete old downloaded file
DeleteFile((*i)->m_DownloadedFile.c_str());
}
}
(*i)->m_DownloadedFile.clear();
}
LeaveCriticalSection(&g_CriticalSection);
}
}
}
}
}
else
{
// Matching failed: handle error cases
LogErrorF(this, L"RegExp matching error (%d)", rc);
doErrorAction = true;
EnterCriticalSection(&g_CriticalSection);
m_ResultString = m_ErrorString;
// Update the references
auto i = g_Measures.begin();
std::wstring compareStr = L"[";
compareStr += GetOriginalName();
compareStr += L']';
for ( ; i != g_Measures.end(); ++i)
{
if ((StringUtil::CaseInsensitiveFind((*i)->m_Url, compareStr) != std::wstring::npos) &&
(GetSkin() == (*i)->GetSkin()))
{
(*i)->m_ResultString = (*i)->m_ErrorString;
}
}
LeaveCriticalSection(&g_CriticalSection);
}
// Release memory used for the compiled pattern
pcre16_free(re);
}
else
{
// Compilation failed.
LogErrorF(this, L"RegExp error at offset %d: %S", erroffset, error);
doErrorAction = true;
}
if (m_Download)
{
// Start the download thread
unsigned int id = 0U;
HANDLE threadHandle = (HANDLE)_beginthreadex(nullptr, 0U, NetworkDownloadThreadProc, this, 0U, &id);
if (threadHandle)
{
m_DlThreadHandle = threadHandle;
}
}
if (doErrorAction && !m_OnRegExpErrAction.empty())
{
GetRainmeter().DelayedExecuteCommand(m_OnRegExpErrAction.c_str(), GetSkin());
}
else if (!m_Download && !m_FinishAction.empty())
{
GetRainmeter().DelayedExecuteCommand(m_FinishAction.c_str(), GetSkin());
}
}
// Downloads file from the net
unsigned __stdcall MeasureWebParser::NetworkDownloadThreadProc(void* pParam)
{
auto* measure = (MeasureWebParser*)pParam;
const bool download = !measure->m_DownloadFile.empty();
bool ready = false;
std::wstring url;
if (measure->m_RegExp.empty() && measure->m_ResultString.empty())
{
if (!measure->m_Url.empty() && measure->m_Url[0] != L'[')
{
url = measure->m_Url;
}
}
else
{
EnterCriticalSection(&g_CriticalSection);
url = measure->m_ResultString;
LeaveCriticalSection(&g_CriticalSection);
std::wstring::size_type pos = url.find(L':');
if (pos == std::wstring::npos && !url.empty()) // No protocol
{
// Add the base url to the string
if (url[0] == L'/')
{
// Absolute path
pos = measure->m_Url.find(L'/', 7ULL); // Assume "http://" (=7)
if (pos != std::wstring::npos)
{
std::wstring path(measure->m_Url.substr(0ULL, pos));
url = path + url;
}
}
else
{
// Relative path
pos = measure->m_Url.rfind(L'/');
if (pos != std::wstring::npos)
{
std::wstring path(measure->m_Url.substr(0ULL, pos + 1ULL));
url = path + url;
}
}
}
}
if (!url.empty())
{
// Create the filename
WCHAR buffer[MAX_PATH] = { 0 };
std::wstring fullpath, directory;
if (download) // download mode
{
PathCanonicalize(buffer, measure->m_DownloadFile.c_str());
std::wstring path = buffer;
std::wstring::size_type pos = path.find_first_not_of(L'\\');
if (pos != std::wstring::npos)
{
path.erase(0UL, pos);
}
PathCanonicalize(buffer, measure->m_DownloadFolder.c_str());
CreateDirectory(buffer, nullptr); // Make sure that the folder exists
wcscat(buffer, path.c_str());
if (buffer[wcslen(buffer) - 1ULL] != L'\\') // path is a file
{
fullpath = buffer;
PathRemoveFileSpec(buffer);
}
PathAddBackslash(buffer);
}
else // cache mode
{
GetTempPath(_countof(buffer), buffer);
wcscat(buffer, L"Rainmeter-Cache\\"); // "%TEMP%\Rainmeter-Cache\"
}
CreateDirectory(buffer, nullptr); // Make sure that the folder exists
directory = buffer;
if (fullpath.empty())
{
fullpath = directory;
std::wstring::size_type pos2 = url.find_first_of(L"?#");
std::wstring::size_type pos1 = url.find_last_of(L'/', pos2);
pos1 = (pos1 != std::wstring::npos) ? pos1 + 1ULL : 0ULL;
std::wstring name;
if (pos2 != std::wstring::npos)
{
name.assign(url, pos1, pos2 - pos1);
}
else
{
name.assign(url, pos1, url.length() - pos1);
}
if (!name.empty())
{
// Replace reserved characters to "_"
pos1 = 0ULL;
while ((pos1 = name.find_first_of(L"\\/:*?\"<>|", pos1)) != std::wstring::npos)
{
name[pos1] = L'_';
}
fullpath += name;
}
else
{
fullpath += L"index";
}
}
ready = true;
if (download) // download mode
{
if (!PathFileExists(directory.c_str()) || !PathIsDirectory(directory.c_str()))
{
ready = false;
LogErrorF(measure, L"Directory does not exist: %s", directory.c_str());
}
else if (PathIsDirectory(fullpath.c_str()))
{
ready = false;
LogErrorF(measure, L"Path is a directory, not a file: %s", fullpath.c_str());
}
else if (PathFileExists(fullpath.c_str()))
{
DWORD attr = GetFileAttributes(fullpath.c_str());
if (attr != INVALID_FILE_ATTRIBUTES && (attr & FILE_ATTRIBUTE_READONLY))
{
ready = false;
LogErrorF(measure, L"File is read-only: %s", fullpath.c_str());
}
}
}
else // cache mode
{
EnterCriticalSection(&g_CriticalSection);
if (PathFileExists(fullpath.c_str()))
{
std::wstring::size_type pos = fullpath.find_last_of(L'.');
std::wstring path, ext;
if (pos != std::wstring::npos)
{
path.assign(fullpath, 0, pos);
ext.assign(fullpath, pos, fullpath.length() - pos);
}
else
{