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https://github.com/ilyakooo0/urbit.git
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mine a comet under a list of stars that we download
This commit is contained in:
Ted Blackman
parent
86c38a46ea
commit
b13f444809
190
vere/dawn.c
190
vere/dawn.c
@ -8,6 +8,40 @@
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#include "all.h"
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#include "vere/vere.h"
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/* _dawn_oct_to_buf(): +octs to uv_buf_t
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*/
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static uv_buf_t
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_dawn_oct_to_buf(u3_noun oct)
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{
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if ( c3n == u3a_is_cat(u3h(oct)) ) {
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u3_lo_bail();
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}
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c3_w len_w = u3h(oct);
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c3_y* buf_y = c3_malloc(1 + len_w);
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buf_y[len_w] = 0;
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u3r_bytes(0, len_w, buf_y, u3t(oct));
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u3z(oct);
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return uv_buf_init((void*)buf_y, len_w);
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}
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/* _dawn_buf_to_oct(): uv_buf_t to +octs
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*/
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static u3_noun
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_dawn_buf_to_oct(uv_buf_t buf_u)
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{
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u3_noun len = u3i_words(1, (c3_w*)&buf_u.len);
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if ( c3n == u3a_is_cat(len) ) {
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u3_lo_bail();
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}
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return u3nc(len, u3i_bytes(buf_u.len, (const c3_y*)buf_u.base));
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}
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/* _dawn_curl_alloc(): allocate a response buffer for curl
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*/
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static size_t
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@ -74,37 +108,51 @@ _dawn_post_json(c3_c* url_c, uv_buf_t lod_u)
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return buf_u;
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}
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/* _dawn_oct_to_buf(): +octs to uv_buf_t
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*/
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static uv_buf_t
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_dawn_oct_to_buf(u3_noun oct)
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{
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if ( c3n == u3a_is_cat(u3h(oct)) ) {
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u3_lo_bail();
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}
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c3_w len_w = u3h(oct);
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c3_y* buf_y = c3_malloc(1 + len_w);
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buf_y[len_w] = 0;
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u3r_bytes(0, len_w, buf_y, u3t(oct));
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u3z(oct);
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return uv_buf_init((void*)buf_y, len_w);
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}
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/* _dawn_buf_to_oct(): uv_buf_t to +octs
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/* _dawn_get_jam(): GET a jammed noun from url_c
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*/
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static u3_noun
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_dawn_buf_to_oct(uv_buf_t buf_u)
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_dawn_get_jam(c3_c* url_c)
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{
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u3_noun len = u3i_words(1, (c3_w*)&buf_u.len);
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CURL *curl;
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CURLcode result;
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long cod_l;
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if ( c3n == u3a_is_cat(len) ) {
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uv_buf_t buf_u = uv_buf_init(c3_malloc(1), 0);
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if ( !(curl = curl_easy_init()) ) {
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fprintf(stderr, "failed to initialize libcurl\n");
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u3_lo_bail();
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}
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return u3nc(len, u3i_bytes(buf_u.len, (const c3_y*)buf_u.base));
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// XX require TLS, pin default cert?
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curl_easy_setopt(curl, CURLOPT_URL, url_c);
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, _dawn_curl_alloc);
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)&buf_u);
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result = curl_easy_perform(curl);
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curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &cod_l);
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// XX retry?
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if ( CURLE_OK != result ) {
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fprintf(stderr, "failed to fetch %s: %s\n",
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url_c, curl_easy_strerror(result));
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u3_lo_bail();
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}
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if ( 300 <= cod_l ) {
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fprintf(stderr, "error fetching %s: HTTP %ld\n", url_c, cod_l);
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u3_lo_bail();
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}
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curl_easy_cleanup(curl);
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// throw away the length from the octs
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//
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u3_noun octs = _dawn_buf_to_oct(buf_u);
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u3_noun jammed = u3k(u3t(octs));
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u3z(octs);
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return u3ke_cue(jammed);
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}
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/* _dawn_eth_rpc(): ethereum JSON RPC with request/response as +octs
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@ -268,51 +316,8 @@ u3_dawn_vent(u3_noun seed)
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}
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// load snapshot from HTTP URL
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//
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// note: some duplicate code with _boot_home() in noun/manage.c
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//
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else if ( 0 != u3_Host.ops_u.sap_c ) {
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c3_c ful_c[2048];
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CURL *curl;
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CURLcode result;
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FILE *file;
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long cod_l;
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snprintf(ful_c, 2048, "%s/.urb/ethereum.snap", u3_Host.dir_c);
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printf("dawn: downloading ethereum snapshot: fetching %s to %s\r\n",
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u3_Host.ops_u.sap_c, ful_c);
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fflush(stdout);
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if ( !(curl = curl_easy_init()) ) {
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fprintf(stderr, "failed to initialize libcurl\n");
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fflush(stderr);
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exit(1);
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}
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if ( !(file = fopen(ful_c, "w")) ) {
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fprintf(stderr, "failed to open %s\n", ful_c);
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fflush(stderr);
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exit(1);
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}
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curl_easy_setopt(curl, CURLOPT_URL, u3_Host.ops_u.sap_c);
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, file);
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result = curl_easy_perform(curl);
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curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &cod_l);
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fclose(file);
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if ( CURLE_OK != result ) {
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fprintf(stderr, "failed to fetch %s: %s\n",
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u3_Host.ops_u.sap_c, curl_easy_strerror(result));
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fprintf(stderr,
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"please fetch it manually and specify the location with -E\n");
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exit(1);
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}
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if ( 300 <= cod_l ) {
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fprintf(stderr, "error fetching %s: HTTP %ld\n", u3_Host.ops_u.sap_c, cod_l);
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fprintf(stderr,
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"please fetch it manually and specify the location with -E\n");
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exit(1);
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}
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curl_easy_cleanup(curl);
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u3_noun raw_snap = u3ke_cue(u3m_file(ful_c));
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u3_noun raw_snap = _dawn_get_jam(u3_Host.ops_u.sap_c);
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sap = u3nc(u3_nul, raw_snap);
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}
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// no snapshot
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@ -351,7 +356,7 @@ u3_dawn_vent(u3_noun seed)
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}
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{
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// +point:constitution:ethe: on-chain state
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// +point:azimuth: on-chain state
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//
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u3_noun pot;
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@ -365,7 +370,7 @@ u3_dawn_vent(u3_noun seed)
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else if ( c3__pawn == rank ) {
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// irrelevant, just bunt +point
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//
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pot = u3v_wish("*point:constitution:ethe");
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pot = u3v_wish("*point:azimuth");
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}
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else {
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u3_noun who;
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@ -478,36 +483,12 @@ u3_dawn_vent(u3_noun seed)
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return u3nc(c3__dawn, u3nq(seed, pon, zar, u3nq(tuf, bok, url, sap)));
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}
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/* u3_dawn_come(): mine a comet under star (unit)
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/* _dawn_come(): mine a comet under a list of stars
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*/
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u3_noun
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u3_dawn_come(u3_noun star)
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static u3_noun
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_dawn_come(u3_noun stars)
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{
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u3_noun seed;
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if ( u3_nul == star ) {
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// XX ~marzod hardcoded
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// choose from list, at random, &c
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//
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star = 256;
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}
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else {
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// XX parse and validate
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//
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u3_noun tar = u3k(u3t(star));
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u3z(star);
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star = tar;
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}
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{
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u3_noun sar = u3dc("scot", 'p', u3k(star));
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c3_c* tar_c = u3r_string(sar);
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fprintf(stderr, "boot: mining a comet under %s\r\n", tar_c);
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free(tar_c);
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u3z(sar);
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}
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{
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c3_w eny_w[16];
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u3_noun eny;
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@ -515,7 +496,9 @@ u3_dawn_come(u3_noun star)
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c3_rand(eny_w);
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eny = u3i_words(16, eny_w);
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seed = u3dc("come:dawn", u3k(star), u3k(eny));
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fprintf(stderr, "boot: mining a comet\r\n");
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seed = u3dc("come:dawn", u3k(stars), u3k(eny));
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u3z(eny);
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}
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@ -528,7 +511,16 @@ u3_dawn_come(u3_noun star)
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u3z(who);
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}
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u3z(star);
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u3z(stars);
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return seed;
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}
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/* u3_dawn_come(): mine a comet under a list of stars we download
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*/
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u3_noun
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u3_dawn_come()
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{
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return _dawn_come(
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_dawn_get_jam("https://bootstrap.urbit.org/comet-stars.jam"));
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}
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