117 lines
2.3 KiB
C
117 lines
2.3 KiB
C
#include <stdio.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#define VALID_CHARS "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_"
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#define COMPOSE "/usr/local/bin/docker-compose"
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/* Just check only allowed chars are present */
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int validate (char *s) {
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for (int i=0; i<strlen(s); i++){
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int found = 0;
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for (int j=0; j<strlen(VALID_CHARS); j++) {
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if ( s[i] == VALID_CHARS[j] ) {
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found = 1;
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break;
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}
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}
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if (!found) {
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return 1;
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}
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}
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return 0;
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}
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void usage () {
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printf("Usage: compose_logs <compose_dir> <instance>|list <since> <until>\n");
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}
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int is_line_in_file (char* l, char* filename) {
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FILE * fp;
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char * line = NULL;
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size_t len = 0;
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ssize_t read;
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fp = fopen(filename, "r");
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if (fp == NULL) {
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return 1;
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}
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while ((read = getline(&line, &len, fp)) != -1) {
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if (line[len-1] == '\n') {
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line[len-1] = '\0';
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}
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printf("Retrieved line of length %zu:\n", read);
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printf("len(l)=%zu\n", strlen(l));
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printf("mdr %d\n", '\n');
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for (int i=0; i<len; i++) {
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printf("lol l %d : %d\n", i, l[i]);
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printf("lol line %d : %d\n", i, line[i]);
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}
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printf("%s", line);
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if (strcmp(line, l) == 0) {
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free(line);
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fclose(fp);
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return 0;
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}
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}
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fclose(fp);
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if (line)
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free(line);
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return 1;
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}
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/* Main program. */
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int
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main (int argc, char* argv[])
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{
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if (argc < 3 ) {
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usage();
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exit(1);
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}
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/* Chdir */
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if (chdir(argv[1]) != 0) {
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printf("chdir() to /usr failed");
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exit(1);
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}
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if (validate(argv[2]) != 0) {
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printf("Bad service name\n");
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exit(1);
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}
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if (is_line_in_file("33", "allow_docker_logs") != 0) {
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printf("unauthorized\n");
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exit(1);
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}
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/* List mode */
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if (strcmp(argv[2],"list") == 0) {
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if (execl(COMPOSE, COMPOSE, "ps", "--format", "json", (char *)NULL) == -1) {
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printf("Error exec docker-compose ps\n");
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printf("%s\n", strerror(errno));
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exit(1);
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}
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/* log mode */
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} else {
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if (argc < 5 ) {
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usage();
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exit(1);
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}
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if (execl(COMPOSE, COMPOSE, "logs", argv[2], "--since", argv[3], "--until", argv[4], (char *)NULL) == -1) {
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printf("Error exec docker-compose logs\n");
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printf("%s\n", strerror(errno));
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exit(1);
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}
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}
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}
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