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#include "spm.h"
Process *file_command(const char *_filename) {
char *filename = strdup(_filename);
Process *proc_info = NULL;
char sh_cmd[PATH_MAX];
sh_cmd[0] = '\0';
#ifdef __APPLE__
const char *fmt_cmd = "file -I \"%s\"";
#else // GNU
const char *fmt_cmd = "file -E -i \"%s\"";
#endif
strchrdel(filename, "&;|");
sprintf(sh_cmd, fmt_cmd, filename);
shell(&proc_info, SHELL_OUTPUT, sh_cmd);
#ifdef __APPLE__
// Force BSD command to return non-zero when a file can't be found
const char *failmsg = ": cannot open";
if (strstr(proc_info->output, failmsg) != NULL) {
proc_info->returncode = 1;
}
#endif
free(filename);
return proc_info;
}
Mime *file_mimetype(const char *filename) {
char **output = NULL;
char **parts = NULL;
Mime *type = NULL;
Process *proc = file_command(filename);
if (proc->returncode != 0) {
return NULL;
}
output = split(proc->output, ":");
if (!output || output[1] == NULL) {
return NULL;
}
parts = split(output[1], ";");
if (!parts || !parts[0] || !parts[1]) {
return NULL;
}
char *what = strdup(parts[0]);
what = lstrip(what);
char *charset = strdup(strchr(parts[1], '=') + 1);
charset = lstrip(charset);
charset[strlen(charset) - 1] = '\0';
char *origin = strdup(realpath(filename, NULL));
type = (Mime *)calloc(1, sizeof(Mime));
type->origin = origin;
type->type = strdup(what);
type->charset = strdup(charset);
split_free(output);
split_free(parts);
return type;
}
void mime_free(Mime *m) {
if (m != NULL) {
free(m->origin);
free(m->type);
free(m->charset);
free(m);
}
}
int file_is_text(const char *filename) {
int result = 0;
char *path = normpath(filename);
Mime *type = file_mimetype(path);
if (startswith(type->type, "text/") == 0) {
result = 1;
}
free(path);
mime_free(type);
return result;
}
int file_is_binary(const char *filename) {
int result = 0;
char *path = normpath(filename);
Mime *type = file_mimetype(path);
if (startswith(type->type, "application/") == 0 && strcmp(type->charset, "binary") == 0) {
result = 1;
}
free(path);
mime_free(type);
return result;
}
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