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xml_dump.c
477 lines (407 loc) · 16.1 KB
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xml_dump.c
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/* createrepo_c - Library of routines for manipulation with repodata
* Copyright (C) 2012 Tomas Mlcoch
*
* This program 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; either version 2
* of the License, or (at your option) any later version.
*
* This program 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include <glib.h>
#include <assert.h>
#include <libxml/encoding.h>
#include <libxml/xmlwriter.h>
#include <libxml/parser.h>
#include <string.h>
#include "error.h"
#include "misc.h"
#include "xml_dump.h"
#include "xml_dump_internal.h"
static int _xml_dump_parameters[CR_XML_DUMP_OPTION_COUNT];
void
cr_xml_dump_init()
{
xmlInitParser();
/* Default Settings for parameters */
_xml_dump_parameters[CR_XML_DUMP_DO_PRETTY_PRINT] = TRUE;
}
void cr_xml_dump_set_parameter(cr_dump_parameter param, int value)
{
switch(param) {
case CR_XML_DUMP_DO_PRETTY_PRINT:
_xml_dump_parameters[param] = value;
break;
default:
/* undefined parameter, ignored. */
break;
}
}
/** Get the value of one xml dump parameter.
*/
int cr_xml_dump_get_parameter(cr_dump_parameter param) {
switch (param) {
case CR_XML_DUMP_DO_PRETTY_PRINT:
return _xml_dump_parameters[param];
default:
break;
}
return 0;
}
void
cr_xml_dump_cleanup()
{
xmlCleanupParser();
}
gboolean cr_hascontrollchars(const unsigned char *str)
{
while (*str) {
if (*str < 32 && (*str != 9 && *str != 10 && *str != 13))
return TRUE;
++str;
}
return FALSE;
}
gchar *
cr_prepend_protocol(const gchar *url)
{
if (url && *url == '/')
return g_strconcat("file://", url, NULL);
return g_strdup(url);
}
void
cr_latin1_to_utf8(const unsigned char *in, unsigned char *out)
{
// http://stackoverflow.com/questions/4059775/convert-iso-8859-1-strings-to-utf-8-in-c-c/4059934#4059934
// This function converts latin1 to utf8 in effective and thread-safe way.
while (*in) {
if (*in<128) {
if (*in < 32 && (*in != 9 && *in != 10 && *in != 13)) {
++in;
continue;
}
*out++=*in++;
} else if (*in<192) {
// Found latin1 (iso-8859-1) control code.
// The string is probably misencoded cp-1252 and not a real latin1.
// Just skip this character.
in++;
continue;
} else {
*out++=0xc2+(*in>0xbf);
*out++=(*in++&0x3f)+0x80;
}
}
*out = '\0';
}
xmlNodePtr
cr_xmlNewTextChild(xmlNodePtr parent,
xmlNsPtr ns,
const xmlChar *name,
const xmlChar *orig_content)
{
int free_content = 0;
xmlChar *content;
xmlNodePtr child;
if (!orig_content) {
content = BAD_CAST "";
} else if (xmlCheckUTF8(orig_content)) {
content = (xmlChar *) orig_content;
} else {
size_t len = strlen((const char *) orig_content);
content = malloc(sizeof(xmlChar)*len*2 + 1);
cr_latin1_to_utf8(orig_content, content);
free_content = 1;
}
child = xmlNewTextChild(parent, ns, name, content);
if (free_content)
free(content);
return child;
}
xmlAttrPtr
cr_xmlNewProp(xmlNodePtr node, const xmlChar *name, const xmlChar *orig_content)
{
int free_content = 0;
xmlChar *content;
xmlAttrPtr attr;
if (!orig_content) {
content = BAD_CAST "";
} else if (xmlCheckUTF8(orig_content)) {
content = (xmlChar *) orig_content;
} else {
size_t len = strlen((const char *) orig_content);
content = malloc(sizeof(xmlChar)*len*2 + 1);
cr_latin1_to_utf8(orig_content, content);
free_content = 1;
}
attr = xmlNewProp(node, name, content);
if (free_content)
free(content);
return attr;
}
void
cr_xml_dump_files(xmlNodePtr node, cr_Package *package, int primary, gboolean filelists_ext)
{
if (!node || !package->files) {
return;
}
GSList *element = NULL;
for(element = package->files; element; element=element->next) {
cr_PackageFile *entry = (cr_PackageFile*) element->data;
// File without name or path is suspicious => Skip it
if (!(entry->path) || !(entry->name)) {
continue;
}
// String concatenation (path + basename)
gchar *fullname;
fullname = g_strconcat(entry->path, entry->name, NULL);
if (!fullname) {
continue;
}
// Skip a file if we want primary files and the file is not one
if (primary && !cr_is_primary(fullname)) {
g_free(fullname);
continue;
}
// ***********************************
// Element: file
// ************************************
xmlNodePtr file_node;
file_node = cr_xmlNewTextChild(node,
NULL,
BAD_CAST "file",
BAD_CAST fullname);
g_free(fullname);
// Write type (skip type if type value is empty of "file")
if (entry->type && entry->type[0] != '\0' && strcmp(entry->type, "file")) {
cr_xmlNewProp(file_node, BAD_CAST "type", BAD_CAST entry->type);
}
if (filelists_ext && entry->digest && entry->digest[0] != '\0') {
cr_xmlNewProp(file_node, BAD_CAST "hash", BAD_CAST entry->digest);
}
}
}
gboolean
cr_GSList_of_cr_Dependency_contains_forbidden_control_chars(GSList *dep)
{
gboolean ret = FALSE;
GSList *element;
for (element = dep; element; element=g_slist_next(element)) {
cr_Dependency *d = element->data;
if (d->name && cr_hascontrollchars((unsigned char *) d->name)) {
g_printerr("name %s have forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", d->name);
ret = TRUE;
}
if (d->epoch && cr_hascontrollchars((unsigned char *) d->epoch)) {
g_printerr("epoch %s have forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", d->epoch);
ret = TRUE;
}
if (d->version && cr_hascontrollchars((unsigned char *) d->version)) {
g_printerr("version %s have forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", d->version);
ret = TRUE;
}
if (d->release && cr_hascontrollchars((unsigned char *) d->release)) {
g_printerr("release %s have forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", d->release);
ret = TRUE;
}
}
return ret;
}
gboolean
cr_Package_contains_forbidden_control_chars(cr_Package *pkg)
{
gboolean ret = FALSE;
if (pkg->name && cr_hascontrollchars((unsigned char *) pkg->name)) {
g_printerr("Package name %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->name);
ret = TRUE;
}
if (pkg->arch && cr_hascontrollchars((unsigned char *) pkg->arch)) {
g_printerr("Package arch %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->arch);
ret = TRUE;
}
if (pkg->version && cr_hascontrollchars((unsigned char *) pkg->version)) {
g_printerr("Package version %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->version);
ret = TRUE;
}
if (pkg->epoch && cr_hascontrollchars((unsigned char *) pkg->epoch)) {
g_printerr("Package epoch %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->epoch);
ret = TRUE;
}
if (pkg->release && cr_hascontrollchars((unsigned char *) pkg->release)) {
g_printerr("Package release %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->release);
ret = TRUE;
}
if (pkg->summary && cr_hascontrollchars((unsigned char *) pkg->summary)) {
g_printerr("Package summary %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->summary);
ret = TRUE;
}
if (pkg->description && cr_hascontrollchars((unsigned char *) pkg->description)) {
g_printerr("Package description %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->description);
ret = TRUE;
}
if (pkg->url && cr_hascontrollchars((unsigned char *) pkg->url)) {
g_printerr("Package URL %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->url);
ret = TRUE;
}
if (pkg->rpm_license && cr_hascontrollchars((unsigned char *) pkg->rpm_license)) {
g_printerr("Package RPM license %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->rpm_license);
ret = TRUE;
}
if (pkg->rpm_vendor && cr_hascontrollchars((unsigned char *) pkg->rpm_vendor)) {
g_printerr("Package RPM vendor %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->rpm_vendor);
ret = TRUE;
}
if (pkg->rpm_group && cr_hascontrollchars((unsigned char *) pkg->rpm_group)) {
g_printerr("Package RPM group %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->rpm_group);
ret = TRUE;
}
if (pkg->rpm_buildhost && cr_hascontrollchars((unsigned char *) pkg->rpm_buildhost)) {
g_printerr("Package RPM buildhost %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->rpm_buildhost);
ret = TRUE;
}
if (pkg->rpm_sourcerpm && cr_hascontrollchars((unsigned char *) pkg->rpm_sourcerpm)) {
g_printerr("Package RPM sourcerpm %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->rpm_sourcerpm);
ret = TRUE;
}
if (pkg->rpm_packager && cr_hascontrollchars((unsigned char *) pkg->rpm_packager)) {
g_printerr("Package RPM packager %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->rpm_packager);
ret = TRUE;
}
if (pkg->location_href && cr_hascontrollchars((unsigned char *) pkg->location_href)) {
g_printerr("Package location href %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->location_href);
ret = TRUE;
}
if (pkg->location_base && cr_hascontrollchars((unsigned char *) pkg->location_base)) {
g_printerr("Package location base %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", pkg->location_base);
ret = TRUE;
}
if (cr_GSList_of_cr_Dependency_contains_forbidden_control_chars(pkg->requires)) {
g_printerr("One or more dependencies in 'requires' contain forbidden control chars (ASCII values <32 except 9, 10 and 13).\n");
ret = TRUE;
}
if (cr_GSList_of_cr_Dependency_contains_forbidden_control_chars(pkg->provides)) {
g_printerr("One or more dependencies in 'provides' contain forbidden control chars (ASCII values <32 except 9, 10 and 13).\n");
ret = TRUE;
}
if (cr_GSList_of_cr_Dependency_contains_forbidden_control_chars(pkg->conflicts)) {
g_printerr("One or more dependencies in 'conflicts' contain forbidden control chars (ASCII values <32 except 9, 10 and 13).\n");
ret = TRUE;
}
if (cr_GSList_of_cr_Dependency_contains_forbidden_control_chars(pkg->obsoletes)) {
g_printerr("One or more dependencies in 'obsoletes' contain forbidden control chars (ASCII values <32 except 9, 10 and 13).\n");
ret = TRUE;
}
if (cr_GSList_of_cr_Dependency_contains_forbidden_control_chars(pkg->suggests)) {
g_printerr("One or more dependencies in 'suggests' contain forbidden control chars (ASCII values <32 except 9, 10 and 13).\n");
ret = TRUE;
}
if (cr_GSList_of_cr_Dependency_contains_forbidden_control_chars(pkg->enhances)) {
g_printerr("One or more dependencies in 'enhances' contain forbidden control chars (ASCII values <32 except 9, 10 and 13).\n");
ret = TRUE;
}
if (cr_GSList_of_cr_Dependency_contains_forbidden_control_chars(pkg->recommends)) {
g_printerr("One or more dependencies in 'recommends' contain forbidden control chars (ASCII values <32 except 9, 10 and 13).\n");
ret = TRUE;
}
if (cr_GSList_of_cr_Dependency_contains_forbidden_control_chars(pkg->supplements)) {
g_printerr("One or more dependencies in 'supplements' contain forbidden control chars (ASCII values <32 except 9, 10 and 13).\n");
ret = TRUE;
}
GSList *element;
for (element = pkg->files; element; element=g_slist_next(element)) {
cr_PackageFile *f = element->data;
if (f->name && cr_hascontrollchars((unsigned char *) f->name)) {
g_printerr("File name %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", f->name);
ret = TRUE;
}
if (f->path && cr_hascontrollchars((unsigned char *) f->path)) {
g_printerr("File path %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", f->path);
ret = TRUE;
}
}
for (element = pkg->changelogs; element; element=g_slist_next(element)) {
cr_ChangelogEntry *ch = element->data;
if (ch->author && cr_hascontrollchars((unsigned char *) ch->author)) {
g_printerr("Changelog author %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", ch->author);
ret = TRUE;
}
if (ch->changelog && cr_hascontrollchars((unsigned char *) ch->changelog)) {
g_printerr("Changelog entry %s contains forbidden control chars (ASCII values <32 except 9, 10 and 13).\n", ch->changelog);
ret = TRUE;
}
}
return ret;
}
struct cr_XmlStruct
cr_xml_dump_int(cr_Package *pkg, gboolean filelists_ext, GError **err)
{
struct cr_XmlStruct result;
GError *tmp_err = NULL;
assert(!err || *err == NULL);
result.primary = NULL;
result.filelists = NULL;
result.filelists_ext = NULL;
result.other = NULL;
if (!pkg)
return result;
if (cr_Package_contains_forbidden_control_chars(pkg)) {
g_set_error(err, CREATEREPO_C_ERROR, CRE_XMLDATA,
"Forbidden control chars found (ASCII values <32 except 9, 10 and 13).");
return result;
}
result.primary = cr_xml_dump_primary(pkg, &tmp_err);
if (tmp_err) {
g_propagate_error(err, tmp_err);
return result;
}
result.filelists = cr_xml_dump_filelists(pkg, &tmp_err);
if (tmp_err) {
g_propagate_error(err, tmp_err);
g_free(result.primary);
result.primary = NULL;
return result;
}
if (filelists_ext) {
result.filelists_ext = cr_xml_dump_filelists_ext(pkg, &tmp_err);
if (tmp_err) {
g_propagate_error(err, tmp_err);
g_free(result.primary);
result.primary = NULL;
g_free(result.filelists);
result.filelists = NULL;
return result;
}
}
result.other = cr_xml_dump_other(pkg, &tmp_err);
if (tmp_err) {
g_propagate_error(err, tmp_err);
g_free(result.primary);
result.primary = NULL;
g_free(result.filelists);
result.filelists = NULL;
if (filelists_ext) {
g_free(result.filelists_ext);
result.filelists_ext = NULL;
}
return result;
}
return result;
}
struct cr_XmlStruct
cr_xml_dump(cr_Package *pkg, GError **err)
{
return cr_xml_dump_int(pkg, FALSE, err);
}
struct cr_XmlStruct
cr_xml_dump_ext(cr_Package *pkg, GError **err)
{
return cr_xml_dump_int(pkg, TRUE, err);
}