dotfiles/pkgs/countfftabs/count.cpp

104 lines
3.1 KiB
C++

#include <iostream>
#include <fstream>
#include <endian.h>
#include <simdjson.h>
#include <lz4.h>
using namespace simdjson;
// /home/yorick/.mozilla/firefox/sdgle03g.default/sessionstore-backups/recovery.jsonlz4
// jq '.windows | map(.tabs | length) | add'
padded_string read_mozlz4a_file(const std::string& file) {
std::ifstream is(file, std::ifstream::binary);
if (!is) {
std::cerr << "error opening file" << std::endl;
exit(1);
}
is.seekg(0, is.end);
size_t insz = is.tellg();
is.seekg(0, is.beg);
char * buffer = new char[insz];
is.read(buffer, insz);
if (!is) {
std::cerr << "error reading file" << std::endl;
exit(1);
}
is.close();
if (memcmp(buffer, "mozLz40", 8)) {
std::cerr << "not a mozLZa file" << std::endl;
exit(1);
}
size_t outsz = le32toh(*(uint32_t *) (buffer + 8));
padded_string out(outsz);
if (LZ4_decompress_safe_partial(buffer + 12, out.data(), insz - 12, outsz, outsz) < 0) {
std::cerr << "decompression error" << std::endl;
exit(1);
}
return out;
}
std::string get_default_firefox_profile_path() {
std::string path = std::string(std::getenv("HOME")) + "/.mozilla/firefox/profiles.ini";
std::ifstream file(path);
if (file.is_open()) {
std::string line;
bool found = false;
std::string default_profile;
while (std::getline(file, line)) {
if (line.find("[General]") == 0) {
found = true;
} else if (found && line.find("Default=") == 0) {
default_profile = line.substr(8);
break;
}
}
file.close();
if (!default_profile.empty()) {
std::stringstream ss;
ss << std::string(std::getenv("HOME")) << "/.mozilla/firefox/" << default_profile;
return ss.str();
}
}
return "";
}
int main(int ac, char **av) {
ondemand::parser parser;
std::string path = get_default_firefox_profile_path();
bool print_json = false;
std::string json_file;
// Check for --json flag
for (int i = 1; i < ac; i++) {
if (std::string(av[i]) == "--json") {
print_json = true;
if (i + 1 < ac) {
json_file = av[i + 1];
}
break;
}
}
if (ac < 2 && path.empty() && !print_json) {
std::cerr << "Could not find default Firefox profile" << std::endl;
std::cerr << "usage: " << av[0] << " .mozilla/firefox/*.default/sessionstore-backups/recovery.jsonlz4" << std::endl;
exit(1);
}
if (print_json) {
padded_string json = read_mozlz4a_file(json_file.empty() ? (ac > 2 ? av[2] : path + "/sessionstore-backups/recovery.jsonlz4") : json_file);
std::cout << json << std::endl;
exit(0);
}
padded_string json = read_mozlz4a_file(ac > 1 ? av[1] : path + "/sessionstore-backups/recovery.jsonlz4");
ondemand::document session = parser.iterate(json);
ondemand::array windows = session["windows"];
size_t n = 0;
for (auto i : windows) {
ondemand::array tabs = i["tabs"];
n += tabs.count_elements();
}
std::cout << n << std::endl;
}