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fix(phone-api): skip manifest scan for node-info-only requests; bound getFiles (#10778)

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Forward-port of #10754 and #10757 from master (2.7) into develop, so the
develop->master 2.8 promotion (#10777) doesn't drop them.

#10754: PhoneAPI no longer walks the filesystem to build the file manifest on
node-info-only config requests (SPECIAL_NONCE_ONLY_NODES), which never consume
it. getFiles() is now bounded (default 64 entries, depth 3) via collectFiles(),
takes an optional wasLimited out-param, and reserves capacity with a bad_alloc/
length_error fallback. The manifest vector is freed via swap (releaseFilesManifest).

#10757: getFiles()/collectFiles() now guard against empty file names returned by
the Adafruit LittleFS nRF52 glue (issue 4395).

Ported by hand rather than cherry-picked: master had reflowed FSCommon.cpp to a
different brace style (every line conflicted), #10754 already subsumes #10757,
and develop carries a MESHTASTIC_EXCLUDE_FILES_MANIFEST path (nRF54L15) that
master lacks. The exclude path is preserved and now also short-circuits + frees
the manifest. Verified: native Docker suite 448/448, clang-format clean.
This commit is contained in:
Ben Meadors
2026-06-24 12:38:46 -05:00
committed by GitHub
co-authored by GitHub
parent fcfe329091
commit b93239bb0a
3 changed files with 150 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/FSCommon.cpp
+118 -31
View File
@@ -88,6 +88,9 @@ bool renameFile(const char *pathFrom, const char *pathTo)
#endif
}
#include <cstring>
#include <new>
#include <stdexcept>
#include <vector>
/**
@@ -119,6 +122,93 @@ bool fsFormat()
#endif
}
#ifdef FSCom
namespace
{
bool pathEndsWithDot(const char *path)
{
if (!path)
return false;
size_t length = strlen(path);
return length > 0 && path[length - 1] == '.';
}
bool copyFilePath(char *dest, size_t destSize, const char *path, bool *wasLimited)
{
if (!path || destSize == 0) {
if (wasLimited)
*wasLimited = true;
return false;
}
if (strlcpy(dest, path, destSize) >= destSize) {
if (wasLimited)
*wasLimited = true;
return false;
}
return true;
}
void collectFiles(const char *dirname, uint8_t levels, size_t maxCount, std::vector<meshtastic_FileInfo> &filenames,
bool *wasLimited)
{
if (!dirname)
return;
File root = FSCom.open(dirname, FILE_O_READ);
if (!root)
return;
if (!root.isDirectory()) {
root.close();
return;
}
File file = root.openNextFile();
// file.name()[0] check is a workaround for a bug in the Adafruit LittleFS nrf52 glue (see issue 4395)
while (file && file.name()[0]) {
if (filenames.size() >= maxCount) {
if (wasLimited)
*wasLimited = true;
file.close();
break;
}
const char *fileName = file.name();
if (file.isDirectory() && !pathEndsWithDot(fileName)) {
char pathBuffer[sizeof(((meshtastic_FileInfo *)nullptr)->file_name)] = {};
#ifdef ARCH_ESP32
const char *subDirPath = file.path();
#else
const char *subDirPath = fileName;
#endif
bool hasSubDirPath = copyFilePath(pathBuffer, sizeof(pathBuffer), subDirPath, wasLimited);
file.close();
if (levels && hasSubDirPath) {
collectFiles(pathBuffer, levels - 1, maxCount, filenames, wasLimited);
} else if (wasLimited) {
*wasLimited = true;
}
} else {
meshtastic_FileInfo fileInfo = {"", static_cast<uint32_t>(file.size())};
#ifdef ARCH_ESP32
bool hasFilePath = copyFilePath(fileInfo.file_name, sizeof(fileInfo.file_name), file.path(), wasLimited);
#else
bool hasFilePath = copyFilePath(fileInfo.file_name, sizeof(fileInfo.file_name), file.name(), wasLimited);
#endif
if (hasFilePath && !pathEndsWithDot(fileInfo.file_name)) {
filenames.push_back(fileInfo);
}
file.close();
}
file = root.openNextFile();
}
root.close();
}
} // namespace
#endif
/**
* @brief Get the list of files in a directory.
*
@@ -127,43 +217,40 @@ bool fsFormat()
*
* @param dirname The name of the directory.
* @param levels The number of levels of subdirectories to list.
* @return A vector of strings containing the full path of each file in the directory.
* @param maxCount The maximum number of files to collect before truncating the walk.
* @param wasLimited Optional out-param, set to true if the listing was truncated (by maxCount or low memory).
* @return A vector of meshtastic_FileInfo for each file in the directory.
*/
std::vector<meshtastic_FileInfo> getFiles(const char *dirname, uint8_t levels)
std::vector<meshtastic_FileInfo> getFiles(const char *dirname, uint8_t levels, size_t maxCount, bool *wasLimited)
{
std::vector<meshtastic_FileInfo> filenames = {};
if (wasLimited)
*wasLimited = false;
#ifdef FSCom
File root = FSCom.open(dirname, FILE_O_READ);
if (!root)
return filenames;
if (!root.isDirectory())
return filenames;
File file = root.openNextFile();
while (file) {
#ifdef ARCH_ESP32
const char *filepath = file.path();
#else
const char *filepath = file.name();
#endif
if (file.isDirectory() && !String(file.name()).endsWith(".")) {
if (levels) {
std::vector<meshtastic_FileInfo> subDirFilenames = getFiles(filepath, levels - 1);
filenames.insert(filenames.end(), subDirFilenames.begin(), subDirFilenames.end());
file.close();
}
} else {
meshtastic_FileInfo fileInfo = {"", static_cast<uint32_t>(file.size())};
strncpy(fileInfo.file_name, filepath, sizeof(fileInfo.file_name) - 1);
fileInfo.file_name[sizeof(fileInfo.file_name) - 1] = '\0';
if (!String(fileInfo.file_name).endsWith(".")) {
filenames.push_back(fileInfo);
}
file.close();
#if defined(__cpp_exceptions) || defined(__EXCEPTIONS)
size_t reservedCount = maxCount;
while (reservedCount > 0) {
try {
filenames.reserve(reservedCount);
break;
} catch (const std::bad_alloc &) {
reservedCount /= 2;
} catch (const std::length_error &) {
reservedCount /= 2;
}
file = root.openNextFile();
}
root.close();
if (reservedCount == 0) {
if (wasLimited)
*wasLimited = true;
return filenames;
}
if (reservedCount < maxCount) {
if (wasLimited)
*wasLimited = true;
maxCount = reservedCount;
}
#endif
collectFiles(dirname, levels, maxCount, filenames, wasLimited);
#endif
return filenames;
}