136 lines
2.9 KiB
C
136 lines
2.9 KiB
C
/** \ingroup rpmio
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* \file rpmio/url.c
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*/
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#include "system.h"
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#include <sys/wait.h>
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#include <rpm/rpmmacro.h>
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#include <rpm/rpmlog.h>
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#include <rpm/rpmurl.h>
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#include <rpm/rpmio.h>
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#include <rpm/argv.h>
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#include <rpm/rpmstring.h>
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#include "debug.h"
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/**
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*/
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static struct urlstring {
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const char * leadin;
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urltype ret;
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} const urlstrings[] = {
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{ "file://", URL_IS_PATH },
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{ "ftp://", URL_IS_FTP },
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{ "hkp://", URL_IS_HKP },
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{ "http://", URL_IS_HTTP },
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{ "https://", URL_IS_HTTPS },
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{ NULL, URL_IS_UNKNOWN }
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};
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urltype urlIsURL(const char * url)
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{
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const struct urlstring *us;
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if (url && *url) {
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for (us = urlstrings; us->leadin != NULL; us++) {
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if (!rstreqn(url, us->leadin, strlen(us->leadin)))
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continue;
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return us->ret;
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}
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if (rstreq(url, "-"))
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return URL_IS_DASH;
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}
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return URL_IS_UNKNOWN;
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}
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/* Return path portion of url (or pointer to NUL if url == NULL) */
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urltype urlPath(const char * url, const char ** pathp)
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{
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const char *path;
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urltype type;
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path = url;
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type = urlIsURL(url);
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switch (type) {
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case URL_IS_FTP:
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url += sizeof("ftp://") - 1;
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path = strchr(url, '/');
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if (path == NULL) path = url + strlen(url);
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break;
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case URL_IS_PATH:
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url += sizeof("file://") - 1;
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path = strchr(url, '/');
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if (path == NULL) path = url + strlen(url);
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break;
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case URL_IS_HKP:
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url += sizeof("hkp://") - 1;
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path = strchr(url, '/');
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if (path == NULL) path = url + strlen(url);
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break;
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case URL_IS_HTTP:
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url += sizeof("http://") - 1;
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path = strchr(url, '/');
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if (path == NULL) path = url + strlen(url);
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break;
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case URL_IS_HTTPS:
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url += sizeof("https://") - 1;
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path = strchr(url, '/');
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if (path == NULL) path = url + strlen(url);
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break;
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case URL_IS_UNKNOWN:
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if (path == NULL) path = "";
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break;
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case URL_IS_DASH:
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path = "";
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break;
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}
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if (pathp)
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*pathp = path;
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return type;
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}
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int urlGetFile(const char * url, const char * dest)
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{
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char *cmd = NULL;
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const char *target = NULL;
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char *urlhelper = NULL;
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int status;
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pid_t pid;
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int res = -1;
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urlhelper = rpmExpand("%{?_urlhelper}", NULL);
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if (dest == NULL) {
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urlPath(url, &target);
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} else {
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target = dest;
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}
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/* XXX TODO: sanity checks like target == dest... */
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rasprintf(&cmd, "%s %s %s", urlhelper, target, url);
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if ((pid = fork()) == 0) {
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ARGV_t argv = NULL;
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argvSplit(&argv, cmd, " ");
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execvp(argv[0], argv);
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exit(127); /* exit with 127 for compatibility with bash(1) */
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}
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if ((waitpid(pid, &status, 0) != -1) && WIFEXITED(status)) {
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if (WEXITSTATUS(status) == 127)
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rpmlog(RPMLOG_ERR, _("Could not find url helper: \"%s\"\n"), urlhelper);
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else if (WEXITSTATUS(status) == 0)
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res = 0;
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else
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rpmlog(RPMLOG_ERR, _("Executing url helper \"%s\" failed with status %i\n"), cmd, WEXITSTATUS(status));
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}
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free(cmd);
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free(urlhelper);
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return res;
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}
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