diffcore-rename.c: avoid set-but-not-used warning
[gitweb.git] / http.c
diff --git a/http.c b/http.c
index deab59551dad9a0d2c2e86d75071fa561e4cbf1a..b27bb57d627f19d725b1f24aa3f06d261e48f8e5 100644 (file)
--- a/http.c
+++ b/http.c
@@ -1,6 +1,8 @@
 #include "http.h"
 #include "pack.h"
 #include "sideband.h"
+#include "run-command.h"
+#include "url.h"
 
 int data_received;
 int active_requests;
@@ -40,6 +42,7 @@ static long curl_low_speed_time = -1;
 static int curl_ftp_no_epsv;
 static const char *curl_http_proxy;
 static char *user_name, *user_pass;
+static const char *user_agent;
 
 #if LIBCURL_VERSION_NUM >= 0x071700
 /* Use CURLOPT_KEYPASSWD as is */
@@ -195,6 +198,9 @@ static int http_options(const char *var, const char *value, void *cb)
                return 0;
        }
 
+       if (!strcmp("http.useragent", var))
+               return git_config_string(&user_agent, var, value);
+
        /* Fall back on the default ones */
        return git_default_config(var, value, cb);
 }
@@ -204,7 +210,7 @@ static void init_curl_http_auth(CURL *result)
        if (user_name) {
                struct strbuf up = STRBUF_INIT;
                if (!user_pass)
-                       user_pass = xstrdup(getpass("Password: "));
+                       user_pass = xstrdup(git_getpass("Password: "));
                strbuf_addf(&up, "%s:%s", user_name, user_pass);
                curl_easy_setopt(result, CURLOPT_USERPWD,
                                 strbuf_detach(&up, NULL));
@@ -219,7 +225,7 @@ static int has_cert_password(void)
                return 0;
        /* Only prompt the user once. */
        ssl_cert_password_required = -1;
-       ssl_cert_password = getpass("Certificate Password: ");
+       ssl_cert_password = git_getpass("Certificate Password: ");
        if (ssl_cert_password != NULL) {
                ssl_cert_password = xstrdup(ssl_cert_password);
                return 1;
@@ -274,11 +280,17 @@ static CURL *get_curl_handle(void)
        }
 
        curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1);
+#if LIBCURL_VERSION_NUM >= 0x071301
+       curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+#elif LIBCURL_VERSION_NUM >= 0x071101
+       curl_easy_setopt(result, CURLOPT_POST301, 1);
+#endif
 
        if (getenv("GIT_CURL_VERBOSE"))
                curl_easy_setopt(result, CURLOPT_VERBOSE, 1);
 
-       curl_easy_setopt(result, CURLOPT_USERAGENT, GIT_USER_AGENT);
+       curl_easy_setopt(result, CURLOPT_USERAGENT,
+               user_agent ? user_agent : GIT_HTTP_USER_AGENT);
 
        if (curl_ftp_no_epsv)
                curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0);
@@ -291,7 +303,7 @@ static CURL *get_curl_handle(void)
 
 static void http_auth_init(const char *url)
 {
-       char *at, *colon, *cp, *slash;
+       char *at, *colon, *cp, *slash, *decoded;
        int len;
 
        cp = strstr(url, "://");
@@ -316,16 +328,25 @@ static void http_auth_init(const char *url)
                user_name = xmalloc(len + 1);
                memcpy(user_name, cp, len);
                user_name[len] = '\0';
+               decoded = url_decode(user_name);
+               free(user_name);
+               user_name = decoded;
                user_pass = NULL;
        } else {
                len = colon - cp;
                user_name = xmalloc(len + 1);
                memcpy(user_name, cp, len);
                user_name[len] = '\0';
+               decoded = url_decode(user_name);
+               free(user_name);
+               user_name = decoded;
                len = at - (colon + 1);
                user_pass = xmalloc(len + 1);
                memcpy(user_pass, colon + 1, len);
                user_pass[len] = '\0';
+               decoded = url_decode(user_pass);
+               free(user_pass);
+               user_pass = decoded;
        }
 }
 
@@ -379,6 +400,8 @@ void http_init(struct remote *remote)
 #endif
        set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO");
 
+       set_from_env(&user_agent, "GIT_HTTP_USER_AGENT");
+
        low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT");
        if (low_speed_limit != NULL)
                curl_low_speed_limit = strtol(low_speed_limit, NULL, 10);
@@ -513,6 +536,7 @@ struct active_request_slot *get_active_slot(void)
        curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL);
        curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL);
        curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL);
+       curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL);
        curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0);
        curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
 
@@ -720,13 +744,6 @@ static inline int hex(int v)
                return 'A' + v - 10;
 }
 
-static void end_url_with_slash(struct strbuf *buf, const char *url)
-{
-       strbuf_addstr(buf, url);
-       if (buf->len && buf->buf[buf->len - 1] != '/')
-               strbuf_addstr(buf, "/");
-}
-
 static char *quote_ref_url(const char *base, const char *ref)
 {
        struct strbuf buf = STRBUF_INIT;
@@ -815,7 +832,21 @@ static int http_request(const char *url, void *result, int target, int options)
                        ret = HTTP_OK;
                else if (missing_target(&results))
                        ret = HTTP_MISSING_TARGET;
-               else
+               else if (results.http_code == 401) {
+                       if (user_name) {
+                               ret = HTTP_NOAUTH;
+                       } else {
+                               /*
+                                * git_getpass is needed here because its very likely stdin/stdout are
+                                * pipes to our parent process.  So we instead need to use /dev/tty,
+                                * but that is non-portable.  Using git_getpass() can at least be stubbed
+                                * on other platforms with a different implementation if/when necessary.
+                                */
+                               user_name = xstrdup(git_getpass("Username: "));
+                               init_curl_http_auth(slot->curl);
+                               ret = HTTP_REAUTH;
+                       }
+               } else
                        ret = HTTP_ERROR;
        } else {
                error("Unable to start HTTP request for %s", url);
@@ -831,7 +862,11 @@ static int http_request(const char *url, void *result, int target, int options)
 
 int http_get_strbuf(const char *url, struct strbuf *result, int options)
 {
-       return http_request(url, result, HTTP_REQUEST_STRBUF, options);
+       int http_ret = http_request(url, result, HTTP_REQUEST_STRBUF, options);
+       if (http_ret == HTTP_REAUTH) {
+               http_ret = http_request(url, result, HTTP_REQUEST_STRBUF, options);
+       }
+       return http_ret;
 }
 
 /*
@@ -896,47 +931,67 @@ int http_fetch_ref(const char *base, struct ref *ref)
 }
 
 /* Helpers for fetching packs */
-static int fetch_pack_index(unsigned char *sha1, const char *base_url)
+static char *fetch_pack_index(unsigned char *sha1, const char *base_url)
 {
-       int ret = 0;
-       char *hex = xstrdup(sha1_to_hex(sha1));
-       char *filename;
-       char *url = NULL;
+       char *url, *tmp;
        struct strbuf buf = STRBUF_INIT;
 
-       if (has_pack_index(sha1)) {
-               ret = 0;
-               goto cleanup;
-       }
-
        if (http_is_verbose)
-               fprintf(stderr, "Getting index for pack %s\n", hex);
+               fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1));
 
        end_url_with_slash(&buf, base_url);
-       strbuf_addf(&buf, "objects/pack/pack-%s.idx", hex);
+       strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1));
        url = strbuf_detach(&buf, NULL);
 
-       filename = sha1_pack_index_name(sha1);
-       if (http_get_file(url, filename, 0) != HTTP_OK)
-               ret = error("Unable to get pack index %s\n", url);
+       strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1));
+       tmp = strbuf_detach(&buf, NULL);
+
+       if (http_get_file(url, tmp, 0) != HTTP_OK) {
+               error("Unable to get pack index %s\n", url);
+               free(tmp);
+               tmp = NULL;
+       }
 
-cleanup:
-       free(hex);
        free(url);
-       return ret;
+       return tmp;
 }
 
 static int fetch_and_setup_pack_index(struct packed_git **packs_head,
        unsigned char *sha1, const char *base_url)
 {
        struct packed_git *new_pack;
+       char *tmp_idx = NULL;
+       int ret;
+
+       if (has_pack_index(sha1)) {
+               new_pack = parse_pack_index(sha1, NULL);
+               if (!new_pack)
+                       return -1; /* parse_pack_index() already issued error message */
+               goto add_pack;
+       }
 
-       if (fetch_pack_index(sha1, base_url))
+       tmp_idx = fetch_pack_index(sha1, base_url);
+       if (!tmp_idx)
                return -1;
 
-       new_pack = parse_pack_index(sha1);
-       if (!new_pack)
+       new_pack = parse_pack_index(sha1, tmp_idx);
+       if (!new_pack) {
+               unlink(tmp_idx);
+               free(tmp_idx);
+
                return -1; /* parse_pack_index() already issued error message */
+       }
+
+       ret = verify_pack_index(new_pack);
+       if (!ret) {
+               close_pack_index(new_pack);
+               ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1));
+       }
+       free(tmp_idx);
+       if (ret)
+               return -1;
+
+add_pack:
        new_pack->next = *packs_head;
        *packs_head = new_pack;
        return 0;
@@ -1000,37 +1055,62 @@ void release_http_pack_request(struct http_pack_request *preq)
 
 int finish_http_pack_request(struct http_pack_request *preq)
 {
-       int ret;
        struct packed_git **lst;
+       struct packed_git *p = preq->target;
+       char *tmp_idx;
+       struct child_process ip;
+       const char *ip_argv[8];
 
-       preq->target->pack_size = ftell(preq->packfile);
+       close_pack_index(p);
 
-       if (preq->packfile != NULL) {
-               fclose(preq->packfile);
-               preq->packfile = NULL;
-               preq->slot->local = NULL;
-       }
-
-       ret = move_temp_to_file(preq->tmpfile, preq->filename);
-       if (ret)
-               return ret;
+       fclose(preq->packfile);
+       preq->packfile = NULL;
+       preq->slot->local = NULL;
 
        lst = preq->lst;
-       while (*lst != preq->target)
+       while (*lst != p)
                lst = &((*lst)->next);
        *lst = (*lst)->next;
 
-       if (verify_pack(preq->target))
+       tmp_idx = xstrdup(preq->tmpfile);
+       strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"),
+              ".idx.temp");
+
+       ip_argv[0] = "index-pack";
+       ip_argv[1] = "-o";
+       ip_argv[2] = tmp_idx;
+       ip_argv[3] = preq->tmpfile;
+       ip_argv[4] = NULL;
+
+       memset(&ip, 0, sizeof(ip));
+       ip.argv = ip_argv;
+       ip.git_cmd = 1;
+       ip.no_stdin = 1;
+       ip.no_stdout = 1;
+
+       if (run_command(&ip)) {
+               unlink(preq->tmpfile);
+               unlink(tmp_idx);
+               free(tmp_idx);
                return -1;
-       install_packed_git(preq->target);
+       }
+
+       unlink(sha1_pack_index_name(p->sha1));
 
+       if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1))
+        || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) {
+               free(tmp_idx);
+               return -1;
+       }
+
+       install_packed_git(p);
+       free(tmp_idx);
        return 0;
 }
 
 struct http_pack_request *new_http_pack_request(
        struct packed_git *target, const char *base_url)
 {
-       char *filename;
        long prev_posn = 0;
        char range[RANGE_HEADER_SIZE];
        struct strbuf buf = STRBUF_INIT;
@@ -1045,9 +1125,8 @@ struct http_pack_request *new_http_pack_request(
                sha1_to_hex(target->sha1));
        preq->url = strbuf_detach(&buf, NULL);
 
-       filename = sha1_pack_name(target->sha1);
-       snprintf(preq->filename, sizeof(preq->filename), "%s", filename);
-       snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp", filename);
+       snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp",
+               sha1_pack_name(target->sha1));
        preq->packfile = fopen(preq->tmpfile, "a");
        if (!preq->packfile) {
                error("Unable to open local file %s for pack",
@@ -1082,7 +1161,6 @@ struct http_pack_request *new_http_pack_request(
        return preq;
 
 abort:
-       free(filename);
        free(preq->url);
        free(preq);
        return NULL;
@@ -1137,7 +1215,6 @@ struct http_object_request *new_http_object_request(const char *base_url,
        freq->localfile = -1;
 
        filename = sha1_file_name(sha1);
-       snprintf(freq->filename, sizeof(freq->filename), "%s", filename);
        snprintf(freq->tmpfile, sizeof(freq->tmpfile),
                 "%s.temp", filename);
 
@@ -1166,8 +1243,8 @@ struct http_object_request *new_http_object_request(const char *base_url,
        }
 
        if (freq->localfile < 0) {
-               error("Couldn't create temporary file %s for %s: %s",
-                     freq->tmpfile, freq->filename, strerror(errno));
+               error("Couldn't create temporary file %s: %s",
+                     freq->tmpfile, strerror(errno));
                goto abort;
        }
 
@@ -1214,8 +1291,8 @@ struct http_object_request *new_http_object_request(const char *base_url,
                        prev_posn = 0;
                        lseek(freq->localfile, 0, SEEK_SET);
                        if (ftruncate(freq->localfile, 0) < 0) {
-                               error("Couldn't truncate temporary file %s for %s: %s",
-                                         freq->tmpfile, freq->filename, strerror(errno));
+                               error("Couldn't truncate temporary file %s: %s",
+                                         freq->tmpfile, strerror(errno));
                                goto abort;
                        }
                }
@@ -1291,7 +1368,7 @@ int finish_http_object_request(struct http_object_request *freq)
                return -1;
        }
        freq->rename =
-               move_temp_to_file(freq->tmpfile, freq->filename);
+               move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1));
 
        return freq->rename;
 }