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Diffstat (limited to 'data/lighttpd/lighttpd-1.4.53/src/http_header.c')
-rw-r--r--data/lighttpd/lighttpd-1.4.53/src/http_header.c190
1 files changed, 190 insertions, 0 deletions
diff --git a/data/lighttpd/lighttpd-1.4.53/src/http_header.c b/data/lighttpd/lighttpd-1.4.53/src/http_header.c
new file mode 100644
index 000000000..22e0d70c5
--- /dev/null
+++ b/data/lighttpd/lighttpd-1.4.53/src/http_header.c
@@ -0,0 +1,190 @@
+#include "first.h"
+
+#include "http_header.h"
+#include "base.h"
+#include "array.h"
+#include "buffer.h"
+
+
+typedef struct keyvlenvalue {
+ const int key;
+ const char * const value;
+ const size_t vlen;
+} keyvlenvalue;
+
+/* Note: must be sorted by length */
+/* Note: must be kept in sync with http_header.h enum http_header_e */
+static const keyvlenvalue http_headers[] = {
+ { HTTP_HEADER_HOST, CONST_STR_LEN("Host") }
+ ,{ HTTP_HEADER_DATE, CONST_STR_LEN("Date") }
+ ,{ HTTP_HEADER_ETAG, CONST_STR_LEN("ETag") }
+ ,{ HTTP_HEADER_VARY, CONST_STR_LEN("Vary") }
+ ,{ HTTP_HEADER_RANGE, CONST_STR_LEN("Range") }
+ ,{ HTTP_HEADER_COOKIE, CONST_STR_LEN("Cookie") }
+ ,{ HTTP_HEADER_EXPECT, CONST_STR_LEN("Expect") }
+ ,{ HTTP_HEADER_STATUS, CONST_STR_LEN("Status") }
+ ,{ HTTP_HEADER_SERVER, CONST_STR_LEN("Server") }
+ ,{ HTTP_HEADER_UPGRADE, CONST_STR_LEN("Upgrade") }
+ ,{ HTTP_HEADER_LOCATION, CONST_STR_LEN("Location") }
+ ,{ HTTP_HEADER_FORWARDED, CONST_STR_LEN("Forwarded") }
+ ,{ HTTP_HEADER_CONNECTION, CONST_STR_LEN("Connection") }
+ ,{ HTTP_HEADER_SET_COOKIE, CONST_STR_LEN("Set-Cookie") }
+ ,{ HTTP_HEADER_CONTENT_TYPE, CONST_STR_LEN("Content-Type") }
+ ,{ HTTP_HEADER_LAST_MODIFIED, CONST_STR_LEN("Last-Modified") }
+ ,{ HTTP_HEADER_AUTHORIZATION, CONST_STR_LEN("Authorization") }
+ ,{ HTTP_HEADER_IF_NONE_MATCH, CONST_STR_LEN("If-None-Match") }
+ ,{ HTTP_HEADER_CACHE_CONTROL, CONST_STR_LEN("Cache-Control") }
+ ,{ HTTP_HEADER_CONTENT_LENGTH, CONST_STR_LEN("Content-Length") }
+ ,{ HTTP_HEADER_ACCEPT_ENCODING, CONST_STR_LEN("Accept-Encoding") }
+ ,{ HTTP_HEADER_X_FORWARDED_FOR, CONST_STR_LEN("X-Forwarded-For") }
+ ,{ HTTP_HEADER_CONTENT_ENCODING, CONST_STR_LEN("Content-Encoding") }
+ ,{ HTTP_HEADER_CONTENT_LOCATION, CONST_STR_LEN("Content-Location") }
+ ,{ HTTP_HEADER_IF_MODIFIED_SINCE, CONST_STR_LEN("If-Modified-Since") }
+ ,{ HTTP_HEADER_TRANSFER_ENCODING, CONST_STR_LEN("Transfer-Encoding") }
+ ,{ HTTP_HEADER_X_FORWARDED_PROTO, CONST_STR_LEN("X-Forwarded-Proto") }
+ ,{ HTTP_HEADER_OTHER, NULL, 0 }
+};
+
+enum http_header_e http_header_hkey_get(const char *s, size_t slen) {
+ const struct keyvlenvalue * const kv = http_headers;
+ for (int i = 0; kv[i].vlen && slen >= kv[i].vlen; ++i) {
+ if (slen == kv[i].vlen
+ && 0 == buffer_caseless_compare(s, slen, kv[i].value, kv[i].vlen))
+ return (enum http_header_e)kv[i].key;
+ }
+ return HTTP_HEADER_OTHER;
+}
+
+
+buffer * http_header_response_get(connection *con, enum http_header_e id, const char *k, size_t klen) {
+ data_string * const ds =
+ (id <= HTTP_HEADER_OTHER || (con->response.htags & id))
+ ? (data_string *)array_get_element_klen(con->response.headers, k, klen)
+ : NULL;
+ return ds && !buffer_string_is_empty(ds->value) ? ds->value : NULL;
+}
+
+void http_header_response_unset(connection *con, enum http_header_e id, const char *k, size_t klen) {
+ if (id <= HTTP_HEADER_OTHER || (con->response.htags & id)) {
+ if (id > HTTP_HEADER_OTHER) con->response.htags &= ~id;
+ array_set_key_value(con->response.headers, k, klen, CONST_STR_LEN(""));
+ }
+}
+
+void http_header_response_set(connection *con, enum http_header_e id, const char *k, size_t klen, const char *v, size_t vlen) {
+ /* set value, including setting blank value if 0 == vlen
+ * (note: if 0 == vlen, header is still inserted with blank value,
+ * which is used to indicate a "removed" header)
+ */
+ if (id > HTTP_HEADER_OTHER)
+ (vlen) ? (con->response.htags |= id) : (con->response.htags &= ~id);
+ array_set_key_value(con->response.headers, k, klen, v, vlen);
+}
+
+void http_header_response_append(connection *con, enum http_header_e id, const char *k, size_t klen, const char *v, size_t vlen) {
+ if (vlen) {
+ data_string *ds= (id <= HTTP_HEADER_OTHER || (con->response.htags & id))
+ ? (data_string *)array_get_element_klen(con->response.headers,k,klen)
+ : NULL;
+ if (id > HTTP_HEADER_OTHER) con->response.htags |= id;
+ if (NULL == ds) {
+ array_insert_key_value(con->response.headers, k, klen, v, vlen);
+ }
+ else { /* append value */
+ buffer *vb = ds->value;
+ if (!buffer_string_is_empty(vb))
+ buffer_append_string_len(vb, CONST_STR_LEN(", "));
+ buffer_append_string_len(vb, v, vlen);
+ }
+ }
+}
+
+void http_header_response_insert(connection *con, enum http_header_e id, const char *k, size_t klen, const char *v, size_t vlen) {
+ if (vlen) {
+ data_string *ds= (id <= HTTP_HEADER_OTHER || (con->response.htags & id))
+ ? (data_string *)array_get_element_klen(con->response.headers,k,klen)
+ : NULL;
+ if (id > HTTP_HEADER_OTHER) con->response.htags |= id;
+ if (NULL == ds) {
+ array_insert_key_value(con->response.headers, k, klen, v, vlen);
+ }
+ else { /* append value */
+ buffer *vb = ds->value;
+ if (!buffer_string_is_empty(vb)) {
+ buffer_append_string_len(vb, CONST_STR_LEN("\r\n"));
+ buffer_append_string_len(vb, k, klen);
+ buffer_append_string_len(vb, CONST_STR_LEN(": "));
+ }
+ buffer_append_string_len(vb, v, vlen);
+ }
+ }
+}
+
+
+buffer * http_header_request_get(connection *con, enum http_header_e id, const char *k, size_t klen) {
+ data_string * const ds =
+ (id <= HTTP_HEADER_OTHER || (con->request.htags & id))
+ ? (data_string *)array_get_element_klen(con->request.headers, k, klen)
+ : NULL;
+ return ds && !buffer_string_is_empty(ds->value) ? ds->value : NULL;
+}
+
+void http_header_request_unset(connection *con, enum http_header_e id, const char *k, size_t klen) {
+ if (id <= HTTP_HEADER_OTHER || (con->request.htags & id)) {
+ if (id > HTTP_HEADER_OTHER) con->request.htags &= ~id;
+ array_set_key_value(con->request.headers, k, klen, CONST_STR_LEN(""));
+ }
+}
+
+void http_header_request_set(connection *con, enum http_header_e id, const char *k, size_t klen, const char *v, size_t vlen) {
+ /* set value, including setting blank value if 0 == vlen
+ * (note: if 0 == vlen, header is still inserted with blank value,
+ * which is used to indicate a "removed" header)
+ */
+ if (id > HTTP_HEADER_OTHER)
+ (vlen) ? (con->request.htags |= id) : (con->request.htags &= ~id);
+ array_set_key_value(con->request.headers, k, klen, v, vlen);
+}
+
+void http_header_request_append(connection *con, enum http_header_e id, const char *k, size_t klen, const char *v, size_t vlen) {
+ if (vlen) {
+ data_string *ds = (id <= HTTP_HEADER_OTHER || (con->request.htags & id))
+ ? (data_string *)array_get_element_klen(con->request.headers, k, klen)
+ : NULL;
+ if (id > HTTP_HEADER_OTHER) con->request.htags |= id;
+ if (NULL == ds) {
+ array_insert_key_value(con->request.headers, k, klen, v, vlen);
+ }
+ else { /* append value */
+ buffer *vb = ds->value;
+ if (!buffer_string_is_empty(vb))
+ buffer_append_string_len(vb, CONST_STR_LEN(", "));
+ buffer_append_string_len(vb, v, vlen);
+ }
+ }
+}
+
+
+buffer * http_header_env_get(connection *con, const char *k, size_t klen) {
+ data_string * const ds =
+ (data_string *)array_get_element_klen(con->environment, k, klen);
+ return ds && !buffer_string_is_empty(ds->value) ? ds->value : NULL;
+}
+
+void http_header_env_set(connection *con, const char *k, size_t klen, const char *v, size_t vlen) {
+ array_set_key_value(con->environment, k, klen, v, vlen);
+}
+
+void http_header_env_append(connection *con, const char *k, size_t klen, const char *v, size_t vlen) {
+ /*if (vlen)*/ /* skip check; permit env var w/ blank value to be appended */
+ {
+ buffer * const vb = http_header_env_get(con, k, klen);
+ if (NULL == vb) {
+ array_insert_key_value(con->environment, k, klen, v, vlen);
+ }
+ else if (vlen) { /* append value */
+ buffer_append_string_len(vb, CONST_STR_LEN(", "));
+ buffer_append_string_len(vb, v, vlen);
+ }
+ }
+}
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