Create ipfs.cpp

blockchain_integration/pi_network/dapi/blockchain/data/storage/ipfs/ipfs.cpp

@@ -0,0 +1,64 @@
+#include "ipfs.h"
+#include <fstream>
+#include <iostream>
+#include <libp2p/crypto/key_generator.h>
+#include <libp2p/crypto/hash_generator.h>
+
+IPFS::IPFS(const std::string& repo_path) : repo_path_(repo_path) {
+  // Initialize the private key and hash function
+  libp2p::crypto::KeyGenerator key_gen;
+  private_key_ = key_gen.generate_key();
+  libp2p::crypto::HashGenerator hash_gen;
+  hash_function_ = hash_gen.generate_hash();
+}
+
+IPFS::~IPFS() {}
+
+void IPFS::add_file(const std::string& file_path) {
+  // Read the file contents
+  std::ifstream file(file_path, std::ios::binary);
+  std::string file_contents((std::istreambuf_iterator<char>(file)), std::istreambuf_iterator<char>());
+
+  // Calculate the CID of the file
+  libp2p::crypto::Hash file_hash = hash_function_(file_contents);
+  std::string cid = file_hash.to_string();
+
+  // Store the file in the repository
+  std::string file_path_in_repo = repo_path_ + "/" + cid;
+  std::ofstream file_in_repo(file_path_in_repo, std::ios::binary);
+  file_in_repo.write(file_contents.c_str(), file_contents.size());
+
+  // Add the file to the file map
+  file_map_[cid] = file_path_in_repo;
+}
+
+std::string IPFS::get_file(const std::string& cid) {
+  // Check if the file is in the file map
+  if (file_map_.find(cid) != file_map_.end()) {
+    // Read the file from the repository
+    std::ifstream file(file_map_[cid], std::ios::binary);
+    std::string file_contents((std::istreambuf_iterator<char>(file)), std::istreambuf_iterator<char>());
+    return file_contents;
+  } else {
+    throw std::runtime_error("File not found");
+  }
+}
+
+void IPFS::pin_file(const std::string& cid) {
+  // Pin the file to the repository
+  // TO DO: implement pinning mechanism
+}
+
+void IPFS::unpin_file(const std::string& cid) {
+  // Unpin the file from the repository
+  // TO DO: implement unpinning mechanism
+}
+
+std::vector<std::string> IPFS::list_files() {
+  // List all files in the repository
+  std::vector<std::string> files;
+  for (const auto& file : file_map_) {
+    files.push_back(file.first);
+  }
+  return files;
+}