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Diffstat (limited to 'amiga/fetch_file.c')
-rwxr-xr-x | amiga/fetch_file.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/amiga/fetch_file.c b/amiga/fetch_file.c new file mode 100755 index 000000000..bdf828bcd --- /dev/null +++ b/amiga/fetch_file.c @@ -0,0 +1,193 @@ +/* + * Copyright 2008 Chris Young <chris@unsatisfactorysoftware.co.uk> + * + * This file is part of NetSurf. + * + * NetSurf is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * NetSurf is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/** \file + * Fetching of data from a file (implementation). + */ + +#include <string.h> +#include "content/fetch.h" +#include "utils/log.h" +#include "utils/url.h" +#include <proto/dos.h> +#include <proto/exec.h> + +/** Information for a single fetch. */ +struct ami_file_fetch_info { + struct fetch *fetch_handle; /**< The fetch handle we're parented by. */ + BPTR fh; /** File handle */ + bool only_2xx; /**< Only HTTP 2xx responses acceptable. */ + char *path; + char *url; /**< URL of this fetch. */ +}; + +static bool ami_fetch_file_initialise(const char *scheme); +static void ami_fetch_file_finalise(const char *scheme); +static void * ami_fetch_file_setup(struct fetch *parent_fetch, const char *url, + bool only_2xx, const char *post_urlenc, + struct form_successful_control *post_multipart, + const char **headers); +static bool ami_fetch_file_start(void *vfetch); +static void ami_fetch_file_abort(void *vf); +static void ami_fetch_file_free(void *f); +static void ami_fetch_file_poll(const char *scheme_ignored); + +/** + * Initialise the fetcher. + * + * Must be called once before any other function. + */ + +void ami_fetch_file_register(void) +{ + if (!fetch_add_fetcher("file", + ami_fetch_file_initialise, + ami_fetch_file_setup, + ami_fetch_file_start, + ami_fetch_file_abort, + ami_fetch_file_free, + ami_fetch_file_poll, + ami_fetch_file_finalise)) { + LOG(("Unable to register Amiga fetcher for file:")); + } +} + + +/** + * Initialise a cURL fetcher. + */ + +bool ami_fetch_file_initialise(const char *scheme) +{ + LOG(("Initialise Amiga fetcher for %s", scheme)); + return true; /* Always succeeds */ +} + + +/** + * Finalise a cURL fetcher + */ + +void ami_fetch_file_finalise(const char *scheme) +{ + LOG(("Finalise Amiga fetcher %s", scheme)); +} + + +/** + * Start fetching data for the given URL. + * + * The function returns immediately. The fetch may be queued for later + * processing. + * + * A pointer to an opaque struct curl_fetch_info is returned, which can be passed to + * fetch_abort() to abort the fetch at any time. Returns 0 if memory is + * exhausted (or some other fatal error occurred). + * + * The caller must supply a callback function which is called when anything + * interesting happens. The callback function is first called with msg + * FETCH_TYPE, with the Content-Type header in data, then one or more times + * with FETCH_DATA with some data for the url, and finally with + * FETCH_FINISHED. Alternatively, FETCH_ERROR indicates an error occurred: + * data contains an error message. FETCH_REDIRECT may replace the FETCH_TYPE, + * FETCH_DATA, FETCH_FINISHED sequence if the server sends a replacement URL. + * + * Some private data can be passed as the last parameter to fetch_start, and + * callbacks will contain this. + */ + +void * ami_fetch_file_setup(struct fetch *parent_fetch, const char *url, + bool only_2xx, const char *post_urlenc, + struct form_successful_control *post_multipart, + const char **headers) +{ + struct ami_file_fetch_info *fetch; + + fetch = AllocVec(sizeof (*fetch),MEMF_PRIVATE | MEMF_CLEAR); + if (!fetch) + return 0; + + fetch->fetch_handle = parent_fetch; + + LOG(("fetch %p, url '%s'", fetch, url)); + + /* construct a new fetch structure */ + fetch->fh = 0; + fetch->only_2xx = only_2xx; +// fetch->url = strdup(url); + fetch->path = url_to_path(url); + + return fetch; +} + + +/** + * Dispatch a single job + */ +bool ami_fetch_file_start(void *vfetch) +{ + struct ami_file_fetch_info *fetch = (struct ami_file_fetch_info*)vfetch; + + fetch->fh = FOpen(fetch->path,MODE_OLDFILE,0); + + if(fetch->fh) return true; + else return false; +} + +void ami_fetch_file_abort(void *vf) +{ + struct ami_file_fetch_info *fetch = (struct ami_file_fetch_info*)vf; + + if (fetch->fh) { + FClose(fetch->fh); + fetch->fh = 0; +// f->abort = true; + } else { + fetch_remove_from_queues(fetch->fetch_handle); + fetch_free(fetch->fetch_handle); + } +} + + +/** + * Free a fetch structure and associated resources. + */ + +void ami_fetch_file_free(void *vf) +{ + struct ami_file_fetch_info *fetch = (struct ami_file_fetch_info*)vf; + + if(fetch->fh) + { + FClose(fetch->fh); + } + + FreeVec(fetch); +} + + +/** + * Do some work on current fetches. + * + * Must be called regularly to make progress on fetches. + */ + +void ami_fetch_file_poll(const char *scheme_ignored) +{ +} + |