grpc_uri *grpc_uri_parse(const char *uri_text, int suppress_errors) {
grpc_uri *uri;
size_t scheme_begin = 0;
size_t scheme_end = NOT_SET;
size_t authority_begin = NOT_SET;
size_t authority_end = NOT_SET;
size_t path_begin = NOT_SET;
size_t path_end = NOT_SET;
size_t query_begin = NOT_SET;
size_t query_end = NOT_SET;
size_t fragment_begin = NOT_SET;
size_t fragment_end = NOT_SET;
size_t i;
for (i = scheme_begin; uri_text[i] != 0; i++) {
if (uri_text[i] == ':') {
scheme_end = i;
break;
}
if (uri_text[i] >= 'a' && uri_text[i] <= 'z') continue;
if (uri_text[i] >= 'A' && uri_text[i] <= 'Z') continue;
if (i != scheme_begin) {
if (uri_text[i] >= '0' && uri_text[i] <= '9') continue;
if (uri_text[i] == '+') continue;
if (uri_text[i] == '-') continue;
if (uri_text[i] == '.') continue;
}
break;
}
if (scheme_end == NOT_SET) {
return bad_uri(uri_text, i, "scheme", suppress_errors);
}
if (uri_text[scheme_end + 1] == '/' && uri_text[scheme_end + 2] == '/') {
authority_begin = scheme_end + 3;
for (i = authority_begin; uri_text[i] != 0 && authority_end == NOT_SET;
i++) {
if (uri_text[i] == '/' || uri_text[i] == '?' || uri_text[i] == '#') {
authority_end = i;
}
}
if (authority_end == NOT_SET && uri_text[i] == 0) {
authority_end = i;
}
if (authority_end == NOT_SET) {
return bad_uri(uri_text, i, "authority", suppress_errors);
}
/* TODO(ctiller): parse the authority correctly */
path_begin = authority_end;
} else {
path_begin = scheme_end + 1;
}
for (i = path_begin; uri_text[i] != 0; i++) {
if (uri_text[i] == '?' || uri_text[i] == '#') {
path_end = i;
break;
}
}
if (path_end == NOT_SET && uri_text[i] == 0) {
path_end = i;
}
if (path_end == NOT_SET) {
return bad_uri(uri_text, i, "path", suppress_errors);
}
if (uri_text[i] == '?') {
query_begin = ++i;
if (!parse_fragment_or_query(uri_text, &i)) {
return bad_uri(uri_text, i, "query", suppress_errors);
} else if (uri_text[i] != 0 && uri_text[i] != '#') {
/* We must be at the end or at the beginning of a fragment */
return bad_uri(uri_text, i, "query", suppress_errors);
}
query_end = i;
}
if (uri_text[i] == '#') {
fragment_begin = ++i;
if (!parse_fragment_or_query(uri_text, &i)) {
return bad_uri(uri_text, i - fragment_end, "fragment", suppress_errors);
} else if (uri_text[i] != 0) {
/* We must be at the end */
return bad_uri(uri_text, i, "fragment", suppress_errors);
}
fragment_end = i;
}
uri = gpr_malloc(sizeof(*uri));
memset(uri, 0, sizeof(*uri));
uri->scheme = copy_component(uri_text, scheme_begin, scheme_end);
uri->authority = copy_component(uri_text, authority_begin, authority_end);
uri->path = copy_component(uri_text, path_begin, path_end);
uri->query = copy_component(uri_text, query_begin, query_end);
uri->fragment = copy_component(uri_text, fragment_begin, fragment_end);
parse_query_parts(uri);
return uri;
}
grpc_uri *grpc_uri_parse(const char *uri_text, int suppress_errors) {
grpc_uri *uri;
int scheme_begin = 0;
int scheme_end = -1;
int authority_begin = -1;
int authority_end = -1;
int path_begin = -1;
int path_end = -1;
int i;
for (i = scheme_begin; uri_text[i] != 0; i++) {
if (uri_text[i] == ':') {
scheme_end = i;
break;
}
if (uri_text[i] >= 'a' && uri_text[i] <= 'z') continue;
if (uri_text[i] >= 'A' && uri_text[i] <= 'Z') continue;
if (i != scheme_begin) {
if (uri_text[i] >= '0' && uri_text[i] <= '9') continue;
if (uri_text[i] == '+') continue;
if (uri_text[i] == '-') continue;
if (uri_text[i] == '.') continue;
}
break;
}
if (scheme_end == -1) {
return bad_uri(uri_text, i, "scheme", suppress_errors);
}
if (uri_text[scheme_end + 1] == '/' && uri_text[scheme_end + 2] == '/') {
authority_begin = scheme_end + 3;
for (i = authority_begin; uri_text[i] != 0; i++) {
if (uri_text[i] == '/') {
authority_end = i;
}
if (uri_text[i] == '?') {
return bad_uri(uri_text, i, "query_not_supported", suppress_errors);
}
if (uri_text[i] == '#') {
return bad_uri(uri_text, i, "fragment_not_supported", suppress_errors);
}
}
if (authority_end == -1 && uri_text[i] == 0) {
authority_end = i;
}
if (authority_end == -1) {
return bad_uri(uri_text, i, "authority", suppress_errors);
}
/* TODO(ctiller): parse the authority correctly */
path_begin = authority_end;
} else {
path_begin = scheme_end + 1;
}
for (i = path_begin; uri_text[i] != 0; i++) {
if (uri_text[i] == '?') {
return bad_uri(uri_text, i, "query_not_supported", suppress_errors);
}
if (uri_text[i] == '#') {
return bad_uri(uri_text, i, "fragment_not_supported", suppress_errors);
}
}
path_end = i;
uri = gpr_malloc(sizeof(*uri));
memset(uri, 0, sizeof(*uri));
uri->scheme = copy_fragment(uri_text, scheme_begin, scheme_end);
uri->authority = copy_fragment(uri_text, authority_begin, authority_end);
uri->path = copy_fragment(uri_text, path_begin, path_end);
return uri;
}
