132 lines
3.8 KiB
C++
132 lines
3.8 KiB
C++
#include "FontInstaller.h"
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#include <HalStorage.h>
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#include <Logging.h>
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#include <cctype>
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#include <cstring>
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#include "CrossPointSettings.h"
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FontInstaller::FontInstaller(SdCardFontRegistry& registry) : registry_(registry) {}
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bool FontInstaller::isValidFamilyName(const char* name) {
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if (name == nullptr || name[0] == '\0') return false;
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const size_t nameLen = strlen(name);
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if (nameLen == 0 || nameLen > MAX_FAMILY_NAME_LEN) return false;
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if (strstr(name, "..") != nullptr) return false;
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if (strchr(name, '/') != nullptr) return false;
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if (strchr(name, '\\') != nullptr) return false;
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for (const char* p = name; *p != '\0'; ++p) {
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char c = *p;
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if (!std::isalnum(static_cast<unsigned char>(c)) && c != '-' && c != '_') {
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return false;
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}
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}
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return true;
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}
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bool FontInstaller::ensureFamilyDir(const char* familyName) {
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if (!isValidFamilyName(familyName)) {
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LOG_ERR("FONT", "Invalid family name: %s", familyName ? familyName : "<null>");
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return false;
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}
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const size_t baseLen = strlen(SdCardFontRegistry::FONTS_DIR);
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const size_t familyLen = strlen(familyName);
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const size_t neededLen = baseLen + 1 + familyLen + 1; // "/" + NUL
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if (neededLen > 128) {
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LOG_ERR("FONT", "Family dir path too long: %s", familyName);
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return false;
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}
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if (!Storage.exists(SdCardFontRegistry::FONTS_DIR)) {
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if (!Storage.mkdir(SdCardFontRegistry::FONTS_DIR)) {
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LOG_ERR("FONT", "Failed to create fonts dir: %s", SdCardFontRegistry::FONTS_DIR);
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return false;
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}
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}
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char dirPath[128];
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snprintf(dirPath, sizeof(dirPath), "%s/%s", SdCardFontRegistry::FONTS_DIR, familyName);
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if (!Storage.exists(dirPath)) {
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if (!Storage.mkdir(dirPath)) {
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LOG_ERR("FONT", "Failed to create family dir: %s", dirPath);
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return false;
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}
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}
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return true;
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}
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bool FontInstaller::validateCpfontFile(const char* path) {
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FsFile file;
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if (!Storage.openFileForRead("FONT", path, file)) {
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LOG_ERR("FONT", "Cannot open for validation: %s", path);
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return false;
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}
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uint8_t magic[CPFONT_MAGIC_LEN];
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size_t bytesRead = file.read(magic, CPFONT_MAGIC_LEN);
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file.close();
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if (bytesRead < CPFONT_MAGIC_LEN) {
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LOG_ERR("FONT", "File too small: %s (%zu bytes)", path, bytesRead);
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return false;
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}
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if (memcmp(magic, "CPFONT\0\0", CPFONT_MAGIC_LEN) != 0) {
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LOG_ERR("FONT", "Bad magic in: %s", path);
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return false;
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}
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return true;
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}
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void FontInstaller::buildFontPath(const char* family, const char* filename, char* outBuf, size_t outBufSize) {
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snprintf(outBuf, outBufSize, "%s/%s/%s", SdCardFontRegistry::FONTS_DIR, family, filename);
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}
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FontInstaller::Error FontInstaller::deleteFamily(const char* familyName) {
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if (!isValidFamilyName(familyName)) {
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return Error::INVALID_FAMILY_NAME;
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}
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const size_t baseLen = strlen(SdCardFontRegistry::FONTS_DIR);
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const size_t familyLen = strlen(familyName);
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if (baseLen + 1 + familyLen + 1 > 128) {
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LOG_ERR("FONT", "Family dir path too long: %s", familyName);
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return Error::INVALID_FAMILY_NAME;
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}
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char dirPath[128];
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snprintf(dirPath, sizeof(dirPath), "%s/%s", SdCardFontRegistry::FONTS_DIR, familyName);
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if (!Storage.exists(dirPath)) {
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LOG_DBG("FONT", "Family dir does not exist: %s", dirPath);
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return Error::OK;
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}
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if (!Storage.removeDir(dirPath)) {
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LOG_ERR("FONT", "Failed to remove family dir: %s", dirPath);
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return Error::SD_WRITE_ERROR;
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}
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if (strcmp(SETTINGS.sdFontFamilyName, familyName) == 0) {
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SETTINGS.sdFontFamilyName[0] = '\0';
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SETTINGS.saveToFile();
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LOG_DBG("FONT", "Cleared active SD font (deleted family: %s)", familyName);
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}
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return Error::OK;
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}
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void FontInstaller::refreshRegistry() { registry_.discover(); }
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bool FontInstaller::isFamilyInstalled(const char* familyName) const {
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return registry_.findFamily(familyName) != nullptr;
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}
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