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#define _BSD_SOURCE /* Needed for popen(3) on Linux. */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <dirent.h>
#include <unistd.h>
#include "shared.h"
char *url = "https://sdccd.instructure.com/api/v1/users/self/files";
char *
json_match(char *JSON, char *key)
{
char *p = strstr(JSON, key);
if (p == NULL) {
return NULL;
}
p += strlen(key) + strlen("\":\"");
int len = 0, i;
for (i = 0; p[i] != '\0' && p[i] != '"'; i++) {
len++;
}
char *val = calloc(len + 1, sizeof(char));
for (i = 0; i < len; i++) {
val[i]= p[i];
}
val[len] = '\0';
return val;
}
char *
strip_fn(char *path)
{
char *dir = calloc(strlen(path) + 1, sizeof(char));
strcpy(dir, path);
int i;
for (i = strlen(path) - 1; i >= 0; i--) {
if (dir[i] == '/') {
dir[i] = '\0';
return dir;
}
}
dir[0] = '\0';
return dir;
}
int
upfile(char *name, char *rdir)
{
printf("%s/%s\n", rdir, name);
char *cmd = calloc(cmdsize, sizeof(char));
char *dir = strip_fn(name);
snprintf(cmd, cmdsize, "curl -s '%s' -F 'name=%s'"
" -F 'parent_folder_path=%s/%s'"
" -H 'Authorization: Bearer %s'", url, name,
rdir, dir, upload_key);
FILE *auth = popen(cmd, "r");
char *JSON = NULL;
int len = 0;
char ch;
while ((ch = fgetc(auth)) > 0) {
len++;
JSON = realloc(JSON, len * sizeof(char));
JSON[len - 1] = ch;
}
len++;
JSON = realloc(JSON, len * sizeof(char));
/* Test output.
JSON = "{\"file_param\":\"file\",\"progress\":null,\"upload_url\":\"https://inst-fs-iad-prod.inscloudgate.net/files?token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzUxMiJ9.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.emC3105zbRiley3teCUsym5jVLmOePaENMahQ-MQRthgawN0GAuG9ufUYyk0l7hrXKy2WYaO0v3m6pmIkA3s4w\",\"upload_params\":{\"filename\":\"test.txt\",\"content_type\":\"text/plain\"}}";*/
char *upload_url = json_match(JSON, "upload_url");
char *content_type = json_match(JSON, "content_type");
char *filename = json_match(JSON, "filename");
if (upload_url == NULL || content_type == NULL
|| filename == NULL) {
fprintf(stderr, "Something went wrong with"
"authentification.\n%s\n", JSON);
return -1;
}
snprintf(cmd, cmdsize, "curl -s '%s' -F 'key=%s'"
" -F 'content_type=%s' -F 'file=@%s'",
upload_url, filename, content_type, name);
/* Throw away output; assume that, if auth is successful,
then upload is successful too. */
popen(cmd, "r");
free(upload_url);
free(content_type);
free(filename);
free(dir);
free(cmd);
return 0;
}
int
updir(DIR *dirp, char *rdir, char *dir)
{
DIR *nestdirp;
struct dirent *dp;
char *name = calloc(pathsize, sizeof(char));
while ((dp = readdir(dirp)) != NULL) {
if (strcmp(".", dp->d_name) == 0
|| strcmp("..", dp->d_name) == 0)
continue;
if (strcmp(".", dir) != 0) {
strcpy(name, dir);
if (name[strlen(name) - 1] != '/')
strcat(name, "/");
strcat(name, dp->d_name);
}
else
strcpy(name, dp->d_name);
nestdirp = opendir(name);
if (nestdirp == NULL)
upfile(name, rdir);
else if (nestdirp != NULL) {
updir(nestdirp, rdir, name);
}
}
free(name);
closedir(dirp);
return 0;
}
int
main(int argc, char **argv)
{
upload_key = getenv("CANKEY");
if (upload_key == NULL) {
fprintf(stderr, "Provide a valid key in the"
" environment variable CANKEY.\nUsing a POSIX shell,"
" do this in ~/.profile.\n"
" Using rc, do this in $home/lib/profile.\n");
return -1;
}
char *rdir;
rdir = calloc(pathsize, sizeof(char));
char *local;
local = calloc(pathsize, sizeof(char));
local[0] = '.';
int i;
for (i = 1; i < argc; ++i) {
if (strcmp(argv[i], "-r") == 0) {
if (i < argc - 1) {
++i;
rdir = argv[i];
}
else {
puts("Supply a directory"
" name after -r");
return 1;
}
} else if (strcmp(argv[i], "-f") == 0) {
if (i < argc - 1) {
++i;
local = argv[i];
}
else {
puts("Supply a file or directory"
" name after -f");
return 2;
}
}
else {
puts(argv[i]);
printf("%s [-r remote directory]"
" [-f local file or directory]\n",
argv[0]);
return -1;
}
}
DIR *dirp = opendir(local);
if (dirp != NULL) {
updir(dirp, rdir, local);
} else if (access(local, R_OK) == 0) {
upfile(local, rdir);
} else {
printf("I can't open this!\n");
return 3;
}
return 0;
}
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