hashmap: improve struct hashmap member documentation
[gitweb.git] / http.c
diff --git a/http.c b/http.c
index 3447945ee4f4e0e4b273d979ea1805b4c0f63b4c..3a28b219be5ecb270a6ff0422c7a4a5cdda023f0 100644 (file)
--- a/http.c
+++ b/http.c
@@ -3,6 +3,7 @@
 #include "sideband.h"
 #include "run-command.h"
 #include "url.h"
+#include "urlmatch.h"
 #include "credential.h"
 #include "version.h"
 #include "pkt-line.h"
@@ -45,6 +46,7 @@ static long curl_low_speed_time = -1;
 static int curl_ftp_no_epsv;
 static const char *curl_http_proxy;
 static const char *curl_cookie_file;
+static int curl_save_cookies;
 struct credential http_auth = CREDENTIAL_INIT;
 static int http_proactive_auth;
 static const char *user_agent;
@@ -160,8 +162,7 @@ static int http_options(const char *var, const char *value, void *cb)
        if (!strcmp("http.sslcainfo", var))
                return git_config_string(&ssl_cainfo, var, value);
        if (!strcmp("http.sslcertpasswordprotected", var)) {
-               if (git_config_bool(var, value))
-                       ssl_cert_password_required = 1;
+               ssl_cert_password_required = git_config_bool(var, value);
                return 0;
        }
        if (!strcmp("http.ssltry", var)) {
@@ -200,6 +201,10 @@ static int http_options(const char *var, const char *value, void *cb)
 
        if (!strcmp("http.cookiefile", var))
                return git_config_string(&curl_cookie_file, var, value);
+       if (!strcmp("http.savecookies", var)) {
+               curl_save_cookies = git_config_bool(var, value);
+               return 0;
+       }
 
        if (!strcmp("http.postbuffer", var)) {
                http_post_buffer = git_config_int(var, value);
@@ -255,6 +260,42 @@ static int has_cert_password(void)
        return 1;
 }
 
+#if LIBCURL_VERSION_NUM >= 0x071900
+static void set_curl_keepalive(CURL *c)
+{
+       curl_easy_setopt(c, CURLOPT_TCP_KEEPALIVE, 1);
+}
+
+#elif LIBCURL_VERSION_NUM >= 0x071000
+static int sockopt_callback(void *client, curl_socket_t fd, curlsocktype type)
+{
+       int ka = 1;
+       int rc;
+       socklen_t len = (socklen_t)sizeof(ka);
+
+       if (type != CURLSOCKTYPE_IPCXN)
+               return 0;
+
+       rc = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&ka, len);
+       if (rc < 0)
+               warning("unable to set SO_KEEPALIVE on socket %s",
+                       strerror(errno));
+
+       return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */
+}
+
+static void set_curl_keepalive(CURL *c)
+{
+       curl_easy_setopt(c, CURLOPT_SOCKOPTFUNCTION, sockopt_callback);
+}
+
+#else
+static void set_curl_keepalive(CURL *c)
+{
+       /* not supported on older curl versions */
+}
+#endif
+
 static CURL *get_curl_handle(void)
 {
        CURL *result = curl_easy_init();
@@ -327,6 +368,8 @@ static CURL *get_curl_handle(void)
                curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
        }
 
+       set_curl_keepalive(result);
+
        return result;
 }
 
@@ -341,10 +384,20 @@ void http_init(struct remote *remote, const char *url, int proactive_auth)
 {
        char *low_speed_limit;
        char *low_speed_time;
+       char *normalized_url;
+       struct urlmatch_config config = { STRING_LIST_INIT_DUP };
+
+       config.section = "http";
+       config.key = NULL;
+       config.collect_fn = http_options;
+       config.cascade_fn = git_default_config;
+       config.cb = NULL;
 
        http_is_verbose = 0;
+       normalized_url = url_normalize(url, &config.url);
 
-       git_config(http_options, NULL);
+       git_config(urlmatch_config_entry, &config);
+       free(normalized_url);
 
        curl_global_init(CURL_GLOBAL_ALL);
 
@@ -407,7 +460,7 @@ void http_init(struct remote *remote, const char *url, int proactive_auth)
                credential_from_url(&http_auth, url);
                if (!ssl_cert_password_required &&
                    getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
-                   !prefixcmp(url, "https://"))
+                   starts_with(url, "https://"))
                        ssl_cert_password_required = 1;
        }
 
@@ -513,6 +566,8 @@ struct active_request_slot *get_active_slot(void)
        slot->callback_data = NULL;
        slot->callback_func = NULL;
        curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file);
+       if (curl_save_cookies)
+               curl_easy_setopt(slot->curl, CURLOPT_COOKIEJAR, curl_cookie_file);
        curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header);
        curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr);
        curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL);
@@ -706,6 +761,12 @@ void finish_active_slot(struct active_request_slot *slot)
        if (slot->results != NULL) {
                slot->results->curl_result = slot->curl_result;
                slot->results->http_code = slot->http_code;
+#if LIBCURL_VERSION_NUM >= 0x070a08
+               curl_easy_getinfo(slot->curl, CURLINFO_HTTPAUTH_AVAIL,
+                                 &slot->results->auth_avail);
+#else
+               slot->results->auth_avail = 0;
+#endif
        }
 
        /* Run callback if appropriate */
@@ -819,6 +880,20 @@ int handle_curl_result(struct slot_results *results)
        }
 }
 
+int run_one_slot(struct active_request_slot *slot,
+                struct slot_results *results)
+{
+       slot->results = results;
+       if (!start_active_slot(slot)) {
+               snprintf(curl_errorstr, sizeof(curl_errorstr),
+                        "failed to start HTTP request");
+               return HTTP_START_FAILED;
+       }
+
+       run_active_slot(slot);
+       return handle_curl_result(results);
+}
+
 static CURLcode curlinfo_strbuf(CURL *curl, CURLINFO info, struct strbuf *buf)
 {
        char *ptr;
@@ -831,6 +906,83 @@ static CURLcode curlinfo_strbuf(CURL *curl, CURLINFO info, struct strbuf *buf)
        return ret;
 }
 
+/*
+ * Check for and extract a content-type parameter. "raw"
+ * should be positioned at the start of the potential
+ * parameter, with any whitespace already removed.
+ *
+ * "name" is the name of the parameter. The value is appended
+ * to "out".
+ */
+static int extract_param(const char *raw, const char *name,
+                        struct strbuf *out)
+{
+       size_t len = strlen(name);
+
+       if (strncasecmp(raw, name, len))
+               return -1;
+       raw += len;
+
+       if (*raw != '=')
+               return -1;
+       raw++;
+
+       while (*raw && !isspace(*raw) && *raw != ';')
+               strbuf_addch(out, *raw++);
+       return 0;
+}
+
+/*
+ * Extract a normalized version of the content type, with any
+ * spaces suppressed, all letters lowercased, and no trailing ";"
+ * or parameters.
+ *
+ * Note that we will silently remove even invalid whitespace. For
+ * example, "text / plain" is specifically forbidden by RFC 2616,
+ * but "text/plain" is the only reasonable output, and this keeps
+ * our code simple.
+ *
+ * If the "charset" argument is not NULL, store the value of any
+ * charset parameter there.
+ *
+ * Example:
+ *   "TEXT/PLAIN; charset=utf-8" -> "text/plain", "utf-8"
+ *   "text / plain" -> "text/plain"
+ */
+static void extract_content_type(struct strbuf *raw, struct strbuf *type,
+                                struct strbuf *charset)
+{
+       const char *p;
+
+       strbuf_reset(type);
+       strbuf_grow(type, raw->len);
+       for (p = raw->buf; *p; p++) {
+               if (isspace(*p))
+                       continue;
+               if (*p == ';') {
+                       p++;
+                       break;
+               }
+               strbuf_addch(type, tolower(*p));
+       }
+
+       if (!charset)
+               return;
+
+       strbuf_reset(charset);
+       while (*p) {
+               while (isspace(*p) || *p == ';')
+                       p++;
+               if (!extract_param(p, "charset", charset))
+                       return;
+               while (*p && !isspace(*p))
+                       p++;
+       }
+
+       if (!charset->len && starts_with(type->buf, "text/"))
+               strbuf_addstr(charset, "ISO-8859-1");
+}
+
 /* http_request() targets */
 #define HTTP_REQUEST_STRBUF    0
 #define HTTP_REQUEST_FILE      1
@@ -846,7 +998,6 @@ static int http_request(const char *url,
        int ret;
 
        slot = get_active_slot();
-       slot->results = &results;
        curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
 
        if (result == NULL) {
@@ -881,18 +1032,15 @@ static int http_request(const char *url,
        curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip");
 
-       if (start_active_slot(slot)) {
-               run_active_slot(slot);
-               ret = handle_curl_result(&results);
-       } else {
-               snprintf(curl_errorstr, sizeof(curl_errorstr),
-                        "failed to start HTTP request");
-               ret = HTTP_START_FAILED;
-       }
+       ret = run_one_slot(slot, &results);
 
-       if (options && options->content_type)
-               curlinfo_strbuf(slot->curl, CURLINFO_CONTENT_TYPE,
-                               options->content_type);
+       if (options && options->content_type) {
+               struct strbuf raw = STRBUF_INIT;
+               curlinfo_strbuf(slot->curl, CURLINFO_CONTENT_TYPE, &raw);
+               extract_content_type(&raw, options->content_type,
+                                    options->charset);
+               strbuf_release(&raw);
+       }
 
        if (options && options->effective_url)
                curlinfo_strbuf(slot->curl, CURLINFO_EFFECTIVE_URL,
@@ -939,7 +1087,7 @@ static int update_url_from_redirect(struct strbuf *base,
        if (!strcmp(asked, got->buf))
                return 0;
 
-       if (prefixcmp(asked, base->buf))
+       if (!starts_with(asked, base->buf))
                die("BUG: update_url_from_redirect: %s is not a superset of %s",
                    asked, base->buf);
 
@@ -1045,7 +1193,7 @@ int http_fetch_ref(const char *base, struct ref *ref)
                strbuf_rtrim(&buffer);
                if (buffer.len == 40)
                        ret = get_sha1_hex(buffer.buf, ref->old_sha1);
-               else if (!prefixcmp(buffer.buf, "ref: ")) {
+               else if (starts_with(buffer.buf, "ref: ")) {
                        ref->symref = xstrdup(buffer.buf + 5);
                        ret = 0;
                }
@@ -1146,8 +1294,8 @@ int http_get_info_packs(const char *base_url, struct packed_git **packs_head)
                case 'P':
                        i++;
                        if (i + 52 <= buf.len &&
-                           !prefixcmp(data + i, " pack-") &&
-                           !prefixcmp(data + i + 46, ".pack\n")) {
+                           starts_with(data + i, " pack-") &&
+                           starts_with(data + i + 46, ".pack\n")) {
                                get_sha1_hex(data + i + 6, sha1);
                                fetch_and_setup_pack_index(packs_head, sha1,
                                                      base_url);
@@ -1323,7 +1471,7 @@ struct http_object_request *new_http_object_request(const char *base_url,
        unsigned char *sha1)
 {
        char *hex = sha1_to_hex(sha1);
-       char *filename;
+       const char *filename;
        char prevfile[PATH_MAX];
        int prevlocal;
        char prev_buf[PREV_BUF_SIZE];