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boinc/tools/backend_lib.C

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// The contents of this file are subject to the BOINC Public License
// Version 1.0 (the "License"); you may not use this file except in
// compliance with the License. You may obtain a copy of the License at
// http://boinc.berkeley.edu/license_1.0.txt
//
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
// License for the specific language governing rights and limitations
// under the License.
//
// The Original Code is the Berkeley Open Infrastructure for Network Computing.
//
// The Initial Developer of the Original Code is the SETI@home project.
// Portions created by the SETI@home project are Copyright (C) 2002
// University of California at Berkeley. All Rights Reserved.
//
// Contributor(s):
//
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <assert.h>
#include <unistd.h>
#include "boinc_db.h"
#include "crypt.h"
#include "error_numbers.h"
#include "md5_file.h"
#include "parse.h"
#include "util.h"
#include "backend_lib.h"
#ifdef _USING_FCGI_
#include "fcgi_stdio.h"
#endif
int read_file(FILE* f, char* buf, int len) {
int n = fread(buf, 1, len, f);
buf[n] = 0;
return 0;
}
int read_filename(const char* path, char* buf, int len) {
int retval;
FILE* f = fopen(path, "r");
if (!f) return -1;
retval = read_file(f, buf, len);
fclose(f);
return retval;
}
// process WU template
//
static int process_wu_template(
WORKUNIT& wu,
char* tmplate,
const char* dirpath,
const char** infiles,
int n,
const char* upload_url,
const char* download_url
) {
char* p;
char buf[LARGE_BLOB_SIZE], md5[33], path[256];
char out[LARGE_BLOB_SIZE];
int retval, file_number;
double nbytes;
char open_name[256];
bool found=false;
strcpy(out, "");
for (p=strtok(tmplate, "\n"); p; p=strtok(0, "\n")) {
if (match_tag(p, "<file_info>")) {
file_number = -1;
strcat(out, "<file_info>\n");
while (1) {
p = strtok(0, "\n");
if (!p) break;
if (parse_int(p, "<number>", file_number)) {
continue;
} else if (match_tag(p, "</file_info>")) {
if (file_number < 0) {
fprintf(stderr, "No file number found\n");
return ERR_XML_PARSE;
}
sprintf(path, "%s/%s", dirpath, infiles[file_number]);
retval = md5_file(path, md5, nbytes);
if (retval) {
fprintf(stderr, "process_wu_template: md5_file %d\n", retval);
return retval;
}
sprintf(buf,
" <name>%s</name>\n"
" <url>%s/%s</url>\n"
" <md5_cksum>%s</md5_cksum>\n"
" <nbytes>%.0f</nbytes>\n"
"</file_info>\n",
infiles[file_number],
download_url, infiles[file_number],
md5,
nbytes
);
strcat(out, buf);
break;
} else {
strcat(out, p);
strcat(out, "\n");
}
}
} else if (match_tag(p, "<workunit>")) {
found = true;
strcat(out, "<workunit>\n");
} else if (match_tag(p, "</workunit>")) {
strcat(out, "</workunit>\n");
} else if (match_tag(p, "<file_ref>")) {
file_number = -1;
while (1) {
p = strtok(0, "\n");
if (!p) break;
if (parse_int(p, "<file_number>", file_number)) {
continue;
} else if (parse_str(p, "<open_name>", open_name, sizeof(open_name))) {
continue;
} else if (match_tag(p, "</file_ref>")) {
sprintf(buf,
"<file_ref>\n"
" <file_name>%s</file_name>\n"
" <open_name>%s</open_name>\n"
"</file_ref>\n",
infiles[file_number],
open_name
);
strcat(out, buf);
break;
}
}
} else if (parse_double(p, "<rsc_fpops_est>", wu.rsc_fpops_est)) {
continue;
} else if (parse_double(p, "<rsc_fpops_bound>", wu.rsc_fpops_bound)) {
continue;
} else if (parse_double(p, "<rsc_memory_bound>", wu.rsc_memory_bound)) {
continue;
} else if (parse_double(p, "<rsc_disk_bound>", wu.rsc_disk_bound)) {
continue;
} else if (parse_int(p, "<delay_bound>", wu.delay_bound)) {
continue;
} else if (parse_int(p, "<min_quorum>", wu.min_quorum)) {
continue;
} else if (parse_int(p, "<target_nresults>", wu.target_nresults)) {
continue;
} else if (parse_int(p, "<max_error_results>", wu.max_error_results)) {
continue;
} else if (parse_int(p, "<max_total_results>", wu.max_total_results)) {
continue;
} else if (parse_int(p, "<max_success_results>", wu.max_success_results)) {
continue;
} else {
strcat(out, p);
strcat(out, "\n");
}
}
if (!found) {
fprintf(stderr, "create_work: bad WU template - no <workunit>\n");
return -1;
}
if (strlen(out) > sizeof(wu.xml_doc)-1) {
fprintf(stderr,
"create_work: WU XML field is too long (%d bytes; max is %d)\n",
strlen(out), sizeof(wu.xml_doc)-1
);
return ERR_BUFFER_OVERFLOW;
}
safe_strncpy(wu.xml_doc, out, sizeof(wu.xml_doc));
return 0;
}
// Set the time-varying fields of a result to their initial state.
// This is used to create clones of existing results,
// so set only the time-varying fields
//
void initialize_result(DB_RESULT& result, int workunit_id, int workunit_appid) {
result.id = 0;
result.create_time = time(0);
result.workunitid = workunit_id;
result.server_state = RESULT_SERVER_STATE_UNSENT;
result.hostid = 0;
result.report_deadline = 0;
result.sent_time = 0;
result.received_time = 0;
result.client_state = 0;
result.cpu_time = 0;
strcpy(result.xml_doc_out, "");
strcpy(result.stderr_out, "");
result.outcome = RESULT_OUTCOME_INIT;
result.file_delete_state = ASSIMILATE_INIT;
result.validate_state = VALIDATE_STATE_INIT;
result.claimed_credit = 0;
result.granted_credit = 0;
result.appid = workunit_appid;
}
// Create a new result for the given WU.
// This is called ONLY from the transitioner
//
int create_result(
int workunit_id,
int workunit_appid,
char* wu_name,
char* result_template_filename,
char* result_name_suffix,
R_RSA_PRIVATE_KEY& key,
char* upload_url
) {
DB_RESULT result;
char base_outfile_name[256];
char result_template[LARGE_BLOB_SIZE];
int retval;
result.clear();
initialize_result(result, workunit_id, workunit_appid);
sprintf(result.name, "%s_%s", wu_name, result_name_suffix);
sprintf(base_outfile_name, "%s_", result.name);
retval = read_filename(result_template_filename, result_template, sizeof(result_template));
if (retval) {
fprintf(stderr, "Failed to read result template file '%s': %d\n",
result_template_filename, retval);
return retval;
}
retval = process_result_template(
result_template,
key,
base_outfile_name,
upload_url
);
if (strlen(result_template) > sizeof(result.xml_doc_in)-1) {
fprintf(stderr,
"result XML doc is too long: %d bytes, max is %d\n",
strlen(result_template), sizeof(result.xml_doc_in)-1
);
return ERR_BUFFER_OVERFLOW;
}
safe_strncpy(result.xml_doc_in, result_template, sizeof(result.xml_doc_in));
// NOTE: result::insert() sets random
retval = result.insert();
if (retval) {
fprintf(stderr, "result.insert(): %d\n", retval);
return retval;
}
return 0;
}
// make sure a WU's input files are actually there
//
int check_files(char** infiles, int ninfiles, char* download_dir) {
int i;
char path[256];
FILE* f;
for (i=0; i<ninfiles; i++) {
sprintf(path, "%s/%s", download_dir, infiles[i]);
f = fopen(path, "r");
if (f) {
fclose(f);
} else {
return 1;
}
}
return 0;
}
int create_work(
DB_WORKUNIT& wu,
const char* _wu_template,
const char* result_template_filename,
const char* infile_dir,
const char** infiles,
int ninfiles,
R_RSA_PRIVATE_KEY& key,
const char* upload_url, const char* download_url
) {
int retval;
char _result_template[LARGE_BLOB_SIZE];
char wu_template[LARGE_BLOB_SIZE];
#if 0
retval = check_files(infiles, ninfiles, download_dir);
if (retval) {
fprintf(stderr, "Missing input file: %s\n", infiles[0]);
return -1;
}
#endif
strcpy(wu_template, _wu_template);
wu.create_time = time(0);
retval = process_wu_template(
wu, wu_template, infile_dir, infiles, ninfiles,
upload_url, download_url
);
if (retval) {
fprintf(stderr, "process_wu_template: %d\n", retval);
return retval;
}
retval = read_filename(
result_template_filename, _result_template, sizeof(_result_template)
);
if (retval) {
fprintf(stderr, "create_work: can't read result template\n");
return retval;
}
if (strlen(result_template_filename) > sizeof(wu.result_template_file)-1) {
fprintf(stderr, "result template filename is too big: %d bytes, max is %d\n",
strlen(result_template_filename), sizeof(wu.result_template_file)-1
);
return ERR_BUFFER_OVERFLOW;
}
safe_strncpy(wu.result_template_file, result_template_filename, sizeof(wu.result_template_file));
wu.transition_time = time(0);
retval = wu.insert();
if (retval) {
fprintf(stderr, "create_work: workunit.insert() %d\n", retval);
return retval;
}
wu.id = boinc_db.insert_id();
return 0;
}
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