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https://github.com/clearlinux/uwsgi.git
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Unbit
83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
#include <uwsgi.h>
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/*
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xattr-related plugin
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exposes two routing vars:
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file is a var, key is a string
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${xattr[PATH_INFO:user.uwsgi.webdav.foobar]}
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file is a var, key is a var
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${xattr2[PATH_INFO:MYKEY]}
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*/
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#ifdef __linux__
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#include <attr/xattr.h>
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#endif
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static char *uwsgi_route_var_xattr(struct wsgi_request *wsgi_req, char *key, uint16_t keylen, uint16_t *vallen) {
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char *colon = memchr(key, ':', keylen);
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if (!colon) return NULL;
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uint16_t var_vallen = 0;
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char *var_value = uwsgi_get_var(wsgi_req, key, colon-key, &var_vallen);
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if (var_value) {
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char *filename = uwsgi_concat2n(var_value, var_vallen, "", 0);
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char *name = uwsgi_concat2n(colon+1, (keylen-1) - (colon-key), "", 0);
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ssize_t rlen = getxattr(filename, name, NULL, 0);
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if (rlen > 0) {
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char *value = uwsgi_calloc(rlen);
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getxattr(filename, name, value, rlen);
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*vallen = rlen;
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free(filename);
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free(name);
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return value;
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}
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free(filename);
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free(name);
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}
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return NULL;
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}
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static char *uwsgi_route_var_xattr2(struct wsgi_request *wsgi_req, char *key, uint16_t keylen, uint16_t *vallen) {
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char *colon = memchr(key, ':', keylen);
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if (!colon) return NULL;
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uint16_t var_vallen = 0;
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char *var_value = uwsgi_get_var(wsgi_req, key, colon-key, &var_vallen);
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if (var_value) {
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uint16_t var2_vallen = 0;
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char *var2_value = uwsgi_get_var(wsgi_req, colon+1, (keylen-1) - (colon-key), &var2_vallen);
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if (var2_value) {
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char *filename = uwsgi_concat2n(var_value, var_vallen, "", 0);
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char *name = uwsgi_concat2n(var2_value, var2_vallen, "", 0);
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ssize_t rlen = getxattr(filename, name, NULL, 0);
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if (rlen > 0) {
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char *value = uwsgi_calloc(rlen);
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getxattr(filename, name, value, rlen);
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*vallen = rlen;
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free(filename);
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free(name);
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return value;
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}
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free(filename);
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free(name);
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}
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}
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return NULL;
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}
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static void register_route_vars_xattr() {
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struct uwsgi_route_var *urv = uwsgi_register_route_var("xattr", uwsgi_route_var_xattr);
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urv->need_free = 1;
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urv = uwsgi_register_route_var("xattr2", uwsgi_route_var_xattr2);
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urv->need_free = 1;
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}
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struct uwsgi_plugin xattr_plugin = {
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.name = "xattr",
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.on_load = register_route_vars_xattr,
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};
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