136 lines
4 KiB
C
136 lines
4 KiB
C
#include <dirent.h>
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#include <sys/stat.h>
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#include <string.h>
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#include "libp2p/os/utils.h"
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#include "ipfs/repo/config/config.h"
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#include "ipfs/repo/fsrepo/fs_repo.h"
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/**
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* The basic functions for initializing an IPFS repo
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*/
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static char config_dir_path[512];
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/**
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* Get the correct repo home directory. This first looks at the
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* command line, then the IPFS_PATH environment variable,
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* then the user's home directory. This should come back with a
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* directory that contains a config file.
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* @param argc number of command line parameters
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* @param argv command line parameters
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* @returns the repo home directory
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*/
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char* ipfs_repo_get_home_directory(int argc, char** argv) {
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char *result = NULL;
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// first check the command line
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for(int i = 0; i < argc; i++) {
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if (strcmp(argv[i], "-c") == 0 || strcmp(argv[i], "--config") == 0) {
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if (i + 1 < argc) {
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result = argv[i+1];
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break;
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}
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}
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}
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if (result == NULL) { // we didn't pass it on the command line
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// check IPFS_PATH
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result = os_utils_getenv("IPFS_PATH");
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}
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if (result == NULL) { // not on command line nor environment var.
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// get user's home directory (or current directory depending on platform),
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// and add .ipfs to it
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result = os_utils_get_homedir();
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strcpy(config_dir_path, result);
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strcat(config_dir_path, "/.ipfs");
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result = config_dir_path;
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}
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return result;
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}
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/**
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* Get the correct repo directory. Looks in all the appropriate places
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* for the ipfs directory.
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* @param argc number of command line arguments
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* @param argv command line arguments
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* @param repo_dir the results. This will point to the [IPFS_PATH]/.ipfs directory
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* @returns true(1) if the directory is there, false(0) if it is not.
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*/
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int ipfs_repo_get_directory(int argc, char** argv, char** repo_dir) {
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*repo_dir = ipfs_repo_get_home_directory(argc, argv);
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return os_utils_directory_exists(*repo_dir);
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}
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/**
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* Make an IPFS directory at the passed in path
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* @param path the path
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* @param swarm_port the port that the swarm will run on
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* @param bootstrap_peers a Vector of MultiAddress of fellow peers
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* @param peer_id the peer id generated
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* @returns true(1) on success, false(0) on failure
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*/
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int make_ipfs_repository(const char* path, int swarm_port, struct Libp2pVector* bootstrap_peers, char **peer_id) {
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int retVal = 0;
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char currDirectory[1024];
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struct RepoConfig* repo_config = NULL;
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struct FSRepo* fs_repo = NULL;
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printf("initializing ipfs node at %s\n", path);
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// build a default repo config
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if (!ipfs_repo_config_new(&repo_config))
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goto exit;
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printf("generating 2048-bit RSA keypair...");
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if (!ipfs_repo_config_init(repo_config, 2048, path, swarm_port, bootstrap_peers)) {
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fprintf(stderr, "Unable to initialize repository at %s\n", path);
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goto exit;
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}
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printf("done\n");
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// now the fs_repo
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if (!ipfs_repo_fsrepo_new(path, repo_config, &fs_repo))
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goto exit;
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// this builds a new repo
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if (!ipfs_repo_fsrepo_init(fs_repo))
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goto exit;
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// give some results to the user
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printf("peer identity: %s\n", fs_repo->config->identity->peer->id);
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if (peer_id != NULL) {
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*peer_id = malloc(fs_repo->config->identity->peer->id_size + 1);
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if (*peer_id != NULL)
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strcpy(*peer_id, fs_repo->config->identity->peer->id);
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}
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// make sure the repository exists
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if (!os_utils_filepath_join(path, "config", currDirectory, 1024))
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goto exit;
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if (!os_utils_file_exists(currDirectory))
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goto exit;
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// cleanup
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retVal = 1;
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exit:
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if (fs_repo != NULL)
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ipfs_repo_fsrepo_free(fs_repo);
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return retVal;
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}
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/**
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* Initialize a repository
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* @param argc number of command line arguments
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* @param argv command line arguments
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* @returns true(1) on succes, false(0) otherwise
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*/
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int ipfs_repo_init(int argc, char** argv) {
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char* repo_directory = NULL;
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if (ipfs_repo_get_directory(argc, argv, &repo_directory)) {
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printf("Directory already exists: %s\n", repo_directory);
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return 0;
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}
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// make the directory
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if (!os_mkdir(repo_directory)) {
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return 0;
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}
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// make the repository
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return make_ipfs_repository(repo_directory, 4001, NULL, NULL);
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}
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