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Marvin Lukaschek committed
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@@ -0,0 +1,385 @@
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/* File System Parsers */
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// Strip filename from path.
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void StripPathFilename(char[] path)
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{
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strcopy(path, FindCharInString(path, '/', true) + 1, path);
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}
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// Return the filename and extension from a given path.
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void GetPathBasename(char[] path, char[] buffer, int maxlength)
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{
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int check = -1;
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if ((check = FindCharInString(path, '/', true)) != -1 ||
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(check = FindCharInString(path, '\\', true)) != -1)
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{
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strcopy(buffer, maxlength, path[check+1]);
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}
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else
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{
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strcopy(buffer, maxlength, path);
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}
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}
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// Add http protocol to url if it's missing.
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void PrefixURL(char[] buffer, int maxlength, const char[] url)
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{
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if (strncmp(url, "http://", 7) != 0 && strncmp(url, "https://", 8) != 0)
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{
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Format(buffer, maxlength, "http://%s", url);
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}
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else
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{
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strcopy(buffer, maxlength, url);
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}
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}
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// Split URL into hostname, location, and filename. No trailing slashes.
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void ParseURL(const char[] url, char[] host, int maxHost, char[] location, int maxLoc, char[] filename, int maxName)
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{
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// Strip url prefix.
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int idx = StrContains(url, "://");
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idx = (idx != -1) ? idx + 3 : 0;
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char dirs[16][64];
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int total = ExplodeString(url[idx], "/", dirs, sizeof(dirs), sizeof(dirs[]));
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// host
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Format(host, maxHost, "%s", dirs[0]);
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// location
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location[0] = '\0';
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for (int i = 1; i < total - 1; i++)
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{
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Format(location, maxLoc, "%s/%s", location, dirs[i]);
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}
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// filename
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Format(filename, maxName, "%s", dirs[total-1]);
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}
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// Converts Updater SMC file paths into paths relative to the game folder.
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void ParseSMCPathForLocal(const char[] path, char[] buffer, int maxlength)
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{
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char dirs[16][64];
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int total = ExplodeString(path, "/", dirs, sizeof(dirs), sizeof(dirs[]));
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if (StrEqual(dirs[0], "Path_SM"))
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{
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BuildPath(Path_SM, buffer, maxlength, "");
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}
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else // Path_Mod
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{
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buffer[0] = '\0';
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}
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// Construct the path and create directories if needed.
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for (int i = 1; i < total - 1; i++)
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{
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Format(buffer, maxlength, "%s%s/", buffer, dirs[i]);
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if(!DirExists(buffer))
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{
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CreateDirectory(buffer, 511);
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}
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}
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// Add the filename to the end of the path.
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Format(buffer, maxlength, "%s%s", buffer, dirs[total-1]);
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}
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// Converts Updater SMC file paths into paths relative to the plugin's update URL.
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void ParseSMCPathForDownload(const char[] path, char[] buffer, int maxlength)
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{
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char dirs[16][64];
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int total = ExplodeString(path, "/", dirs, sizeof(dirs), sizeof(dirs[]));
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// Construct the path.
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buffer[0] = '\0';
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for (int i = 1; i < total; i++)
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{
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Format(buffer, maxlength, "%s/%s", buffer, dirs[i]);
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}
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}
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// Parses a plugin's update file.
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// Logs update notes and begins download if required.
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// Returns true if an update was available.
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static Handle SMC_Sections;
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static Handle SMC_DataTrie;
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static Handle SMC_DataPack;
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static int SMC_LineNum;
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bool ParseUpdateFile(int index, const char[] path)
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{
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/* Return true if an update was available. */
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SMC_Sections = CreateArray(64);
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SMC_DataTrie = CreateTrie();
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SMC_DataPack = CreateDataPack();
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SMC_LineNum = 0;
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Handle smc = SMC_CreateParser();
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SMC_SetRawLine(smc, Updater_RawLine);
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SMC_SetReaders(smc, Updater_NewSection, Updater_KeyValue, Updater_EndSection);
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char sBuffer[MAX_URL_LENGTH];
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Handle hPack;
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bool bUpdate = false;
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SMCError err = SMC_ParseFile(smc, path);
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if (err == SMCError_Okay)
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{
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// Initialize data
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Handle hPlugin = IndexToPlugin(index);
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Handle hFiles = Updater_GetFiles(index);
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ClearArray(hFiles);
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// current version.
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char sCurrentVersion[16];
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if (!GetPluginInfo(hPlugin, PlInfo_Version, sCurrentVersion, sizeof(sCurrentVersion)))
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{
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strcopy(sCurrentVersion, sizeof(sCurrentVersion), "Null");
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}
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// latest version.
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char smcLatestVersion[16];
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if (GetTrieValue(SMC_DataTrie, "version->latest", hPack))
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{
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ResetPack(hPack);
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ReadPackString(hPack, smcLatestVersion, sizeof(smcLatestVersion));
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}
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// Check if we have the latest version.
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if (!StrEqual(sCurrentVersion, smcLatestVersion))
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{
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char sFilename[64];
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char sName[64];
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GetPluginFilename(hPlugin, sFilename, sizeof(sFilename));
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if (GetPluginInfo(hPlugin, PlInfo_Name, sName, sizeof(sName)))
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{
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Updater_Log("Update available for \"%s\" (%s). Current: %s - Latest: %s", sName, sFilename, sCurrentVersion, smcLatestVersion);
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}
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else
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{
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Updater_Log("Update available for \"%s\". Current: %s - Latest: %s", sFilename, sCurrentVersion, smcLatestVersion);
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}
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if (GetTrieValue(SMC_DataTrie, "information->notes", hPack))
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{
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ResetPack(hPack);
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int iCount = 0;
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while (IsPackReadable(hPack, 1))
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{
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ReadPackString(hPack, sBuffer, sizeof(sBuffer));
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Updater_Log(" [%i] %s", iCount++, sBuffer);
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}
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}
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// Log update notes, save file list, and begin downloading.
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if (g_bGetDownload && Fwd_OnPluginDownloading(hPlugin) == Plugin_Continue)
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{
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// Get previous version.
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char smcPrevVersion[16];
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if (GetTrieValue(SMC_DataTrie, "version->previous", hPack))
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{
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ResetPack(hPack);
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ReadPackString(hPack, smcPrevVersion, sizeof(smcPrevVersion));
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}
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// Check if we only need the patch files.
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if (StrEqual(sCurrentVersion, smcPrevVersion) && GetTrieValue(SMC_DataTrie, "patch->plugin", hPack))
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{
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ParseSMCFilePack(index, hPack, hFiles);
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if (g_bGetSource && GetTrieValue(SMC_DataTrie, "patch->source", hPack))
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{
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ParseSMCFilePack(index, hPack, hFiles);
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}
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}
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else if (GetTrieValue(SMC_DataTrie, "files->plugin", hPack))
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{
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ParseSMCFilePack(index, hPack, hFiles);
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if (g_bGetSource && GetTrieValue(SMC_DataTrie, "files->source", hPack))
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{
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ParseSMCFilePack(index, hPack, hFiles);
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}
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}
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Updater_SetStatus(index, Status_Downloading);
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}
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else
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{
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// We don't want to spam the logs with the same update notification.
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Updater_SetStatus(index, Status_Updated);
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}
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bUpdate = true;
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}
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#if defined DEBUG
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iCount = 0;
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Updater_DebugLog(" ");
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Updater_DebugLog("SMC DEBUG");
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ResetPack(SMC_DataPack);
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while (IsPackReadable(SMC_DataPack, 1))
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{
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ReadPackString(SMC_DataPack, sBuffer, sizeof(sBuffer));
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Updater_DebugLog("%s", sBuffer);
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if (GetTrieValue(SMC_DataTrie, sBuffer, hPack))
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{
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iCount = 0;
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ResetPack(hPack);
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while (IsPackReadable(hPack, 1))
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{
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ReadPackString(hPack, sBuffer, sizeof(sBuffer));
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Updater_DebugLog(" [%i] %s", iCount++, sBuffer);
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}
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}
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}
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Updater_DebugLog("END SMC DEBUG");
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Updater_DebugLog(" ");
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#endif
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}
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else
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{
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Updater_Log("SMC parsing error on line %d", SMC_LineNum);
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Updater_GetURL(index, sBuffer, sizeof(sBuffer));
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Updater_Log(" [0] URL: %s", sBuffer);
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if (SMC_GetErrorString(err, sBuffer, sizeof(sBuffer)))
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{
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Updater_Log(" [1] ERROR: %s", sBuffer);
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}
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}
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// Clean up SMC data.
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ResetPack(SMC_DataPack);
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while (IsPackReadable(SMC_DataPack, 1))
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{
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ReadPackString(SMC_DataPack, sBuffer, sizeof(sBuffer));
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if (GetTrieValue(SMC_DataTrie, sBuffer, hPack))
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{
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CloseHandle(hPack);
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}
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}
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CloseHandle(SMC_Sections);
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CloseHandle(SMC_DataTrie);
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CloseHandle(SMC_DataPack);
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CloseHandle(smc);
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return bUpdate;
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}
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void ParseSMCFilePack(int index, Handle hPack, Handle hFiles)
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{
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// Prepare URL
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char urlprefix[MAX_URL_LENGTH];
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char url[MAX_URL_LENGTH];
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char dest[PLATFORM_MAX_PATH];
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char sBuffer[MAX_URL_LENGTH];
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Updater_GetURL(index, urlprefix, sizeof(urlprefix));
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StripPathFilename(urlprefix);
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ResetPack(hPack);
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while (IsPackReadable(hPack, 1))
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{
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ReadPackString(hPack, sBuffer, sizeof(sBuffer));
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// Merge url.
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ParseSMCPathForDownload(sBuffer, url, sizeof(url));
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Format(url, sizeof(url), "%s%s", urlprefix, url);
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// Make sure the current plugin path matches the update.
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ParseSMCPathForLocal(sBuffer, dest, sizeof(dest));
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char sLocalBase[64];
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char sPluginBase[64];
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char sFilename[64];
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GetPathBasename(dest, sLocalBase, sizeof(sLocalBase));
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GetPathBasename(sFilename, sPluginBase, sizeof(sPluginBase));
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if (StrEqual(sLocalBase, sPluginBase))
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{
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StripPathFilename(dest);
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Format(dest, sizeof(dest), "%s/%s", dest, sFilename);
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}
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// Save the file location for later.
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PushArrayString(hFiles, dest);
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// Add temporary file extension.
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Format(dest, sizeof(dest), "%s.%s", dest, TEMP_FILE_EXT);
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// Begin downloading file.
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AddToDownloadQueue(index, url, dest);
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}
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}
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public SMCResult Updater_RawLine(Handle smc, const char[] line, int lineno)
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{
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SMC_LineNum = lineno;
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return SMCParse_Continue;
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}
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public SMCResult Updater_NewSection(Handle smc, const char[] name, bool opt_quotes)
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{
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PushArrayString(SMC_Sections, name);
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return SMCParse_Continue;
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}
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public SMCResult Updater_KeyValue(Handle smc, const char[] key, const char[] value, bool key_quotes, bool value_quotes)
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{
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char sCurSection[MAX_URL_LENGTH];
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char sKey[MAX_URL_LENGTH];
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Handle hPack;
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GetArrayString(SMC_Sections, GetArraySize(SMC_Sections)-1, sCurSection, sizeof(sCurSection));
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FormatEx(sKey, sizeof(sKey), "%s->%s", sCurSection, key);
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StringToLower(sKey);
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if (!GetTrieValue(SMC_DataTrie, sKey, hPack))
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{
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hPack = CreateDataPack();
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SetTrieValue(SMC_DataTrie, sKey, hPack);
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WritePackString(SMC_DataPack, sKey);
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}
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WritePackString(hPack, value);
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return SMCParse_Continue;
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}
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public SMCResult Updater_EndSection(Handle smc)
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{
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if (GetArraySize(SMC_Sections))
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{
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RemoveFromArray(SMC_Sections, GetArraySize(SMC_Sections)-1);
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}
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return SMCParse_Continue;
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}
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stock void StringToLower(char[] input)
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{
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int length = strlen(input);
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for (int i = 0; i < length; i++)
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{
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input[i] = CharToLower(input[i]);
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}
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}
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