Installing remote packages using its URL is an interesting case for ALPM API. Unlike package sync ('pacman -S pkg1 pkg2') '-U' does not deal with server mirror list. Thus _alpm_multi_download() should be able to handle file download for payloads that either have 'fileurl' field or pair of fields ('servers' and 'filepath') set. Signature for alpm_fetch_pkgurl() has changed and it accepts an output list that is populated with filepaths to fetched packages. Signed-off-by: Anatol Pomozov --- lib/libalpm/alpm.h | 15 ++-- lib/libalpm/dload.c | 205 +++++++++++++++++++++++++------------------ lib/libalpm/dload.h | 5 ++ src/pacman/upgrade.c | 102 ++++++++++----------- 4 files changed, 184 insertions(+), 143 deletions(-) diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h index 3ea66ccc..977c292c 100644 --- a/lib/libalpm/alpm.h +++ b/lib/libalpm/alpm.h @@ -755,12 +755,17 @@ typedef void (*alpm_cb_totaldl)(off_t total); typedef int (*alpm_cb_fetch)(const char *url, const char *localpath, int force); -/** Fetch a remote pkg. +/** Fetch a list of remote packages. * @param handle the context handle - * @param url URL of the package to download - * @return the downloaded filepath on success, NULL on error - */ -char *alpm_fetch_pkgurl(alpm_handle_t *handle, const char *url); + * @param urls list of package URLs to download + * @param fetched list of filepaths to the fetched packages, each item + * corresponds to one in `urls` list. This is an output parameter, + * the caller should provide a pointer to an empty list + * (*fetched === NULL) and the callee fills the list with data. + * @return 0 on success or -1 on failure + */ +int alpm_fetch_pkgurl(alpm_handle_t *handle, const alpm_list_t *urls, + alpm_list_t **fetched); /** @addtogroup alpm_api_options Options * Libalpm option getters and setters diff --git a/lib/libalpm/dload.c b/lib/libalpm/dload.c index 13aa4086..c1ec1e70 100644 --- a/lib/libalpm/dload.c +++ b/lib/libalpm/dload.c @@ -613,7 +613,9 @@ static int curl_multi_retry_next_server(CURLM *curlm, CURL *curl, struct dload_p size_t len; alpm_handle_t *handle = payload->handle; - payload->servers = payload->servers->next; + if(payload->servers) { + payload->servers = payload->servers->next; + } if(!payload->servers) { _alpm_log(payload->handle, ALPM_LOG_DEBUG, "%s: no more servers to retry\n", payload->remote_name); @@ -622,7 +624,7 @@ static int curl_multi_retry_next_server(CURLM *curlm, CURL *curl, struct dload_p server = payload->servers->data; /* regenerate a new fileurl */ - free(payload->fileurl); + FREE(payload->fileurl); len = strlen(server) + strlen(payload->filepath) + 2; MALLOC(payload->fileurl, len, RET_ERR(handle, ALPM_ERR_MEMORY, -1)); snprintf(payload->fileurl, len, "%s/%s", server, payload->filepath); @@ -849,20 +851,28 @@ static int curl_multi_add_payload(alpm_handle_t *handle, CURLM *curlm, struct dload_payload *payload, const char *localpath) { size_t len; - const char *server; CURL *curl = NULL; char hostname[HOSTNAME_SIZE]; int ret = -1; - ASSERT(payload->servers, RET_ERR(handle, ALPM_ERR_SERVER_NONE, -1)); - server = payload->servers->data; - curl = curl_easy_init(); payload->curl = curl; - len = strlen(server) + strlen(payload->filepath) + 2; - MALLOC(payload->fileurl, len, GOTO_ERR(handle, ALPM_ERR_MEMORY, cleanup)); - snprintf(payload->fileurl, len, "%s/%s", server, payload->filepath); + if(payload->fileurl) { + ASSERT(!payload->servers, GOTO_ERR(handle, ALPM_ERR_WRONG_ARGS, cleanup)); + ASSERT(!payload->filepath, GOTO_ERR(handle, ALPM_ERR_WRONG_ARGS, cleanup)); + } else { + const char *server; + + ASSERT(payload->servers, GOTO_ERR(handle, ALPM_ERR_SERVER_NONE, cleanup)); + ASSERT(payload->filepath, GOTO_ERR(handle, ALPM_ERR_WRONG_ARGS, cleanup)); + + server = payload->servers->data; + + len = strlen(server) + strlen(payload->filepath) + 2; + MALLOC(payload->fileurl, len, GOTO_ERR(handle, ALPM_ERR_MEMORY, cleanup)); + snprintf(payload->fileurl, len, "%s/%s", server, payload->filepath); + } payload->tempfile_openmode = "wb"; if(!payload->remote_name) { @@ -1046,22 +1056,29 @@ int _alpm_multi_download(alpm_handle_t *handle, alpm_list_t *s; int success = 0; - for(s = payload->servers; s; s = s->next) { - const char *server = s->data; - char *fileurl; - int ret; - - size_t len = strlen(server) + strlen(payload->filepath) + 2; - MALLOC(fileurl, len, RET_ERR(handle, ALPM_ERR_MEMORY, -1)); - snprintf(fileurl, len, "%s/%s", server, payload->filepath); - - ret = handle->fetchcb(fileurl, localpath, payload->force); - free(fileurl); - - if (ret != -1) { + if(payload->fileurl) { + if (handle->fetchcb(payload->fileurl, localpath, payload->force) != -1) { success = 1; break; } + } else { + for(s = payload->servers; s; s = s->next) { + const char *server = s->data; + char *fileurl; + int ret; + + size_t len = strlen(server) + strlen(payload->filepath) + 2; + MALLOC(fileurl, len, RET_ERR(handle, ALPM_ERR_MEMORY, -1)); + snprintf(fileurl, len, "%s/%s", server, payload->filepath); + + ret = handle->fetchcb(fileurl, localpath, payload->force); + free(fileurl); + + if (ret != -1) { + success = 1; + break; + } + } } if(!success && !payload->errors_ok) { RET_ERR(handle, ALPM_ERR_EXTERNAL_DOWNLOAD, -1); @@ -1087,82 +1104,102 @@ static char *filecache_find_url(alpm_handle_t *handle, const char *url) return _alpm_filecache_find(handle, filebase); } -char SYMEXPORT *alpm_fetch_pkgurl(alpm_handle_t *handle, const char *url) +int SYMEXPORT alpm_fetch_pkgurl(alpm_handle_t *handle, const alpm_list_t *urls, + alpm_list_t **fetched) { - char *filepath; - const char *cachedir, *final_pkg_url = NULL; - char *final_file = NULL; - struct dload_payload payload = {0}; - int ret = 0; + const char *cachedir; + alpm_list_t *payloads = NULL; + int download_sigs; + const alpm_list_t *i; + alpm_event_t event; - CHECK_HANDLE(handle, return NULL); - ASSERT(url, RET_ERR(handle, ALPM_ERR_WRONG_ARGS, NULL)); + CHECK_HANDLE(handle, return -1); + ASSERT(*fetched == NULL, RET_ERR(handle, ALPM_ERR_WRONG_ARGS, -1)); + download_sigs = handle->siglevel & ALPM_SIG_PACKAGE; /* find a valid cache dir to download to */ cachedir = _alpm_filecache_setup(handle); - /* attempt to find the file in our pkgcache */ - filepath = filecache_find_url(handle, url); - if(filepath == NULL) { - STRDUP(payload.fileurl, url, RET_ERR(handle, ALPM_ERR_MEMORY, NULL)); - payload.allow_resume = 1; - payload.handle = handle; - payload.trust_remote_name = 1; - - /* download the file */ - ret = _alpm_download(&payload, cachedir, &final_file, &final_pkg_url); - _alpm_dload_payload_reset(&payload); - if(ret == -1) { - _alpm_log(handle, ALPM_LOG_WARNING, _("failed to download %s\n"), url); - free(final_file); - return NULL; + for(i = urls; i; i = i->next) { + char *url = i->data; + + /* attempt to find the file in our pkgcache */ + char *filepath = filecache_find_url(handle, url); + if(filepath) { + /* the file is locally cached so add it to the output right away */ + alpm_list_append(fetched, filepath); + } else { + struct dload_payload *payload = NULL; + + ASSERT(url, GOTO_ERR(handle, ALPM_ERR_WRONG_ARGS, err)); + CALLOC(payload, 1, sizeof(*payload), GOTO_ERR(handle, ALPM_ERR_MEMORY, err)); + STRDUP(payload->fileurl, url, FREE(payload); GOTO_ERR(handle, ALPM_ERR_MEMORY, err)); + payload->allow_resume = 1; + payload->handle = handle; + payload->trust_remote_name = 1; + payloads = alpm_list_add(payloads, payload); + + if(download_sigs) { + int len = strlen(url) + 5; + CALLOC(payload, 1, sizeof(*payload), GOTO_ERR(handle, ALPM_ERR_MEMORY, err)); + payload->signature = 1; + MALLOC(payload->fileurl, len, FREE(payload); GOTO_ERR(handle, ALPM_ERR_MEMORY, err)); + snprintf(payload->fileurl, len, "%s.sig", url); + payload->handle = handle; + payload->trust_remote_name = 1; + payload->errors_ok = (handle->siglevel & ALPM_SIG_PACKAGE_OPTIONAL); + /* set hard upper limit of 16KiB */ + payload->max_size = 16 * 1024; + payloads = alpm_list_add(payloads, payload); + } } - _alpm_log(handle, ALPM_LOG_DEBUG, "successfully downloaded %s\n", url); } - /* attempt to download the signature */ - if(ret == 0 && final_pkg_url && (handle->siglevel & ALPM_SIG_PACKAGE)) { - char *sig_filepath, *sig_final_file = NULL; - size_t len; - - len = strlen(final_pkg_url) + 5; - MALLOC(payload.fileurl, len, free(final_file); RET_ERR(handle, ALPM_ERR_MEMORY, NULL)); - snprintf(payload.fileurl, len, "%s.sig", final_pkg_url); - - sig_filepath = filecache_find_url(handle, payload.fileurl); - if(sig_filepath == NULL) { - payload.signature = 1; - payload.handle = handle; - payload.trust_remote_name = 1; - payload.force = 1; - payload.errors_ok = (handle->siglevel & ALPM_SIG_PACKAGE_OPTIONAL); - - /* set hard upper limit of 16KiB */ - payload.max_size = 16 * 1024; - - ret = _alpm_download(&payload, cachedir, &sig_final_file, NULL); - if(ret == -1 && !payload.errors_ok) { - _alpm_log(handle, ALPM_LOG_WARNING, - _("failed to download %s\n"), payload.fileurl); - /* Warn now, but don't return NULL. We will fail later during package - * load time. */ - } else if(ret == 0) { - _alpm_log(handle, ALPM_LOG_DEBUG, - "successfully downloaded %s\n", payload.fileurl); + if(payloads) { + event.type = ALPM_EVENT_PKG_RETRIEVE_START; + EVENT(handle, &event); + if(_alpm_multi_download(handle, payloads, cachedir) == -1) { + _alpm_log(handle, ALPM_LOG_WARNING, _("failed to retrieve some files\n")); + event.type = ALPM_EVENT_PKG_RETRIEVE_FAILED; + EVENT(handle, &event); + + GOTO_ERR(handle, ALPM_ERR_RETRIEVE, err); + } else { + event.type = ALPM_EVENT_PKG_RETRIEVE_DONE; + EVENT(handle, &event); + } + + for(i = payloads; i; i = i->next) { + struct dload_payload *payload = i->data; + const char *filename; + char *filepath; + + if(payload->signature) { + continue; + } + + filename = mbasename(payload->destfile_name); + filepath = _alpm_filecache_find(handle, filename); + if(filepath) { + alpm_list_append(fetched, filepath); + } else { + _alpm_log(handle, ALPM_LOG_WARNING, _("download completed successfully but no file in the cache\n")); + GOTO_ERR(handle, ALPM_ERR_RETRIEVE, err); } - FREE(sig_final_file); } - free(sig_filepath); - _alpm_dload_payload_reset(&payload); - } - /* we should be able to find the file the second time around */ - if(filepath == NULL) { - filepath = _alpm_filecache_find(handle, final_file); + alpm_list_free_inner(payloads, (alpm_list_fn_free)_alpm_dload_payload_reset); + FREELIST(payloads); } - free(final_file); - return filepath; + return 0; + +err: + alpm_list_free_inner(payloads, (alpm_list_fn_free)_alpm_dload_payload_reset); + FREELIST(payloads); + FREELIST(*fetched); + + return -1; } void _alpm_dload_payload_reset(struct dload_payload *payload) diff --git a/lib/libalpm/dload.h b/lib/libalpm/dload.h index 1e4af755..b9ef9c99 100644 --- a/lib/libalpm/dload.h +++ b/lib/libalpm/dload.h @@ -30,6 +30,11 @@ struct dload_payload { char *tempfile_name; char *destfile_name; char *content_disp_name; + /* client has to provide either + * 1) fileurl - full URL to the file + * 2) pair of (servers, filepath), in this case ALPM iterates over the + * server list and tries to download "$server/$filepath" + */ char *fileurl; char *filepath; /* download URL path */ alpm_list_t *servers; diff --git a/src/pacman/upgrade.c b/src/pacman/upgrade.c index 5f984e44..840e3a31 100644 --- a/src/pacman/upgrade.c +++ b/src/pacman/upgrade.c @@ -30,6 +30,34 @@ #include "conf.h" #include "util.h" +/* add targets to the created transaction */ +static int load_packages(alpm_list_t *targets, int siglevel) +{ + alpm_list_t *i; + int retval = 0; + + for(i = targets; i; i = alpm_list_next(i)) { + const char *targ = i->data; + alpm_pkg_t *pkg; + + if(alpm_pkg_load(config->handle, targ, 1, siglevel, &pkg) != 0) { + pm_printf(ALPM_LOG_ERROR, "'%s': %s\n", + targ, alpm_strerror(alpm_errno(config->handle))); + retval = 1; + continue; + } + if(alpm_add_pkg(config->handle, pkg) == -1) { + pm_printf(ALPM_LOG_ERROR, "'%s': %s\n", + targ, alpm_strerror(alpm_errno(config->handle))); + alpm_pkg_free(pkg); + retval = 1; + continue; + } + config->explicit_adds = alpm_list_add(config->explicit_adds, pkg); + } + return retval; +} + /** * @brief Upgrade a specified list of packages. * @@ -39,43 +67,30 @@ */ int pacman_upgrade(alpm_list_t *targets) { - int retval = 0, *file_is_remote; + int retval = 0; + alpm_list_t *remote_targets = NULL, *fetched_files = NULL; + alpm_list_t *local_targets = NULL; alpm_list_t *i; - unsigned int n, num_targets; if(targets == NULL) { pm_printf(ALPM_LOG_ERROR, _("no targets specified (use -h for help)\n")); return 1; } - num_targets = alpm_list_count(targets); - - /* Check for URL targets and process them */ - file_is_remote = malloc(num_targets * sizeof(int)); - if(file_is_remote == NULL) { - pm_printf(ALPM_LOG_ERROR, _("memory exhausted\n")); - return 1; - } - - for(i = targets, n = 0; i; i = alpm_list_next(i), n++) { + /* carve out remote targets and move it into a separate list */ + for(i = targets; i; i = alpm_list_next(i)) { if(strstr(i->data, "://")) { - char *str = alpm_fetch_pkgurl(config->handle, i->data); - if(str == NULL) { - pm_printf(ALPM_LOG_ERROR, "'%s': %s\n", - (char *)i->data, alpm_strerror(alpm_errno(config->handle))); - retval = 1; - } else { - free(i->data); - i->data = str; - file_is_remote[n] = 1; - } + remote_targets = alpm_list_add(remote_targets, i->data); } else { - file_is_remote[n] = 0; + local_targets = alpm_list_add(local_targets, i->data); } } - if(retval) { - goto fail_free; + if(remote_targets) { + retval = alpm_fetch_pkgurl(config->handle, remote_targets, &fetched_files); + if(retval) { + goto fail_free; + } } /* Step 1: create a new transaction */ @@ -85,39 +100,16 @@ int pacman_upgrade(alpm_list_t *targets) } printf(_("loading packages...\n")); - /* add targets to the created transaction */ - for(i = targets, n = 0; i; i = alpm_list_next(i), n++) { - const char *targ = i->data; - alpm_pkg_t *pkg; - int siglevel; - - if(file_is_remote[n]) { - siglevel = alpm_option_get_remote_file_siglevel(config->handle); - } else { - siglevel = alpm_option_get_local_file_siglevel(config->handle); - } - - if(alpm_pkg_load(config->handle, targ, 1, siglevel, &pkg) != 0) { - pm_printf(ALPM_LOG_ERROR, "'%s': %s\n", - targ, alpm_strerror(alpm_errno(config->handle))); - retval = 1; - continue; - } - if(alpm_add_pkg(config->handle, pkg) == -1) { - pm_printf(ALPM_LOG_ERROR, "'%s': %s\n", - targ, alpm_strerror(alpm_errno(config->handle))); - alpm_pkg_free(pkg); - retval = 1; - continue; - } - config->explicit_adds = alpm_list_add(config->explicit_adds, pkg); - } + retval |= load_packages(local_targets, alpm_option_get_local_file_siglevel(config->handle)); + retval |= load_packages(fetched_files, alpm_option_get_remote_file_siglevel(config->handle)); if(retval) { goto fail_release; } - free(file_is_remote); + alpm_list_free(remote_targets); + alpm_list_free(local_targets); + FREELIST(fetched_files); /* now that targets are resolved, we can hand it all off to the sync code */ return sync_prepare_execute(); @@ -125,7 +117,9 @@ int pacman_upgrade(alpm_list_t *targets) fail_release: trans_release(); fail_free: - free(file_is_remote); + alpm_list_free(remote_targets); + alpm_list_free(local_targets); + FREELIST(fetched_files); return retval; } -- 2.27.0