--- /dev/null
+/*
+ * repo_appdatadb.c
+ *
+ * Parses AppSteam Data files.
+ * See http://people.freedesktop.org/~hughsient/appdata/
+ *
+ *
+ * Copyright (c) 2013, Novell Inc.
+ *
+ * This program is licensed under the BSD license, read LICENSE.BSD
+ * for further information
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <dirent.h>
+#include <expat.h>
+#include <errno.h>
+
+#include "pool.h"
+#include "repo.h"
+#include "util.h"
+#include "repo_appdata.h"
+
+
+enum state {
+ STATE_START,
+ STATE_APPLICATION,
+ STATE_ID,
+ STATE_LICENCE,
+ STATE_NAME,
+ STATE_SUMMARY,
+ STATE_DESCRIPTION,
+ STATE_P,
+ STATE_UL,
+ STATE_UL_LI,
+ STATE_OL,
+ STATE_OL_LI,
+ STATE_URL,
+ STATE_GROUP,
+ NUMSTATES
+};
+
+struct stateswitch {
+ enum state from;
+ char *ename;
+ enum state to;
+ int docontent;
+};
+
+/* !! must be sorted by first column !! */
+static struct stateswitch stateswitches[] = {
+ { STATE_START, "applications", STATE_START, 0 },
+ { STATE_START, "application", STATE_APPLICATION, 0 },
+ { STATE_APPLICATION, "id", STATE_ID, 1 },
+ { STATE_APPLICATION, "licence", STATE_LICENCE, 1 },
+ { STATE_APPLICATION, "name", STATE_NAME, 1 },
+ { STATE_APPLICATION, "summary", STATE_SUMMARY, 1 },
+ { STATE_APPLICATION, "description", STATE_DESCRIPTION, 0 },
+ { STATE_APPLICATION, "url", STATE_URL, 1 },
+ { STATE_APPLICATION, "project_group", STATE_GROUP, 1 },
+ { STATE_DESCRIPTION, "p", STATE_P, 1 },
+ { STATE_DESCRIPTION, "ul", STATE_UL, 0 },
+ { STATE_DESCRIPTION, "ol", STATE_OL, 0 },
+ { STATE_UL, "li", STATE_UL_LI, 1 },
+ { STATE_OL, "li", STATE_OL_LI, 1 },
+ { NUMSTATES }
+};
+
+struct parsedata {
+ int depth;
+ enum state state;
+ int statedepth;
+ char *content;
+ int lcontent;
+ int acontent;
+ int docontent;
+ Pool *pool;
+ Repo *repo;
+ Repodata *data;
+
+ struct stateswitch *swtab[NUMSTATES];
+ enum state sbtab[NUMSTATES];
+
+ Solvable *solvable;
+ Id handle;
+
+ char *description;
+ int licnt;
+};
+
+
+static inline const char *
+find_attr(const char *txt, const char **atts)
+{
+ for (; *atts; atts += 2)
+ if (!strcmp(*atts, txt))
+ return atts[1];
+ return 0;
+}
+
+
+static void XMLCALL
+startElement(void *userData, const char *name, const char **atts)
+{
+ struct parsedata *pd = userData;
+ Pool *pool = pd->pool;
+ Solvable *s = pd->solvable;
+ struct stateswitch *sw;
+
+#if 0
+ fprintf(stderr, "start: [%d]%s\n", pd->state, name);
+#endif
+ if (pd->depth != pd->statedepth)
+ {
+ pd->depth++;
+ return;
+ }
+
+ pd->depth++;
+ if (!pd->swtab[pd->state]) /* no statetable -> no substates */
+ {
+#if 0
+ fprintf(stderr, "into unknown: %s (from: %d)\n", name, pd->state);
+#endif
+ return;
+ }
+ for (sw = pd->swtab[pd->state]; sw->from == pd->state; sw++) /* find name in statetable */
+ if (!strcmp(sw->ename, name))
+ break;
+
+ if (sw->from != pd->state)
+ {
+#if 0
+ fprintf(stderr, "into unknown: %s (from: %d)\n", name, pd->state);
+#endif
+ return;
+ }
+ pd->state = sw->to;
+ pd->docontent = sw->docontent;
+ pd->statedepth = pd->depth;
+ pd->lcontent = 0;
+ *pd->content = 0;
+
+ switch(pd->state)
+ {
+ case STATE_APPLICATION:
+ s = pd->solvable = pool_id2solvable(pool, repo_add_solvable(pd->repo));
+ pd->handle = s - pool->solvables;
+ break;
+ case STATE_DESCRIPTION:
+ pd->description = solv_free(pd->description);
+ break;
+ case STATE_OL:
+ pd->licnt = 0;
+ break;
+ default:
+ break;
+ }
+}
+
+/* replace whitespace with one space/newline */
+/* also strip starting/ending whitespace */
+static void
+wsstrip(struct parsedata *pd)
+{
+ int i, j;
+ int ws = 0;
+ for (i = j = 0; pd->content[i]; i++)
+ {
+ if (pd->content[i] == ' ' || pd->content[i] == '\t' || pd->content[i] == '\n')
+ {
+ ws |= pd->content[i] == '\n' ? 2 : 1;
+ continue;
+ }
+ if (ws && j)
+ pd->content[j++] = (ws & 2) ? '\n' : ' ';
+ ws = 0;
+ pd->content[j++] = pd->content[i];
+ }
+ pd->content[j] = 0;
+ pd->lcontent = j;
+}
+
+/* indent all lines */
+static void
+indent(struct parsedata *pd, int il)
+{
+ int i, l;
+ for (l = 0; pd->content[l]; )
+ {
+ if (pd->content[l] == '\n')
+ {
+ l++;
+ continue;
+ }
+ if (pd->lcontent + il + 1 > pd->acontent)
+ {
+ pd->acontent = pd->lcontent + il + 256;
+ pd->content = realloc(pd->content, pd->acontent);
+ }
+ memmove(pd->content + l + il, pd->content + l, pd->lcontent - l + 1);
+ for (i = 0; i < il; i++)
+ pd->content[l + i] = ' ';
+ pd->lcontent += il;
+ while (pd->content[l] && pd->content[l] != '\n')
+ l++;
+ }
+}
+
+static void XMLCALL
+endElement(void *userData, const char *name)
+{
+ struct parsedata *pd = userData;
+ Pool *pool = pd->pool;
+ Solvable *s = pd->solvable;
+ Id id;
+
+#if 0
+ fprintf(stderr, "end: [%d]%s\n", pd->state, name);
+#endif
+ if (pd->depth != pd->statedepth)
+ {
+ pd->depth--;
+#if 0
+ fprintf(stderr, "back from unknown %d %d %d\n", pd->state, pd->depth, pd->statedepth);
+#endif
+ return;
+ }
+
+ pd->depth--;
+ pd->statedepth--;
+
+ switch (pd->state)
+ {
+ case STATE_APPLICATION:
+ if (!s->arch)
+ s->arch = ARCH_NOARCH;
+ if (!s->evr)
+ s->evr = ID_EMPTY;
+ if (s->name && s->arch != ARCH_SRC && s->arch != ARCH_NOSRC)
+ s->provides = repo_addid_dep(pd->repo, s->provides, pool_rel2id(pd->pool, s->name, s->evr, REL_EQ, 1), 0);
+ pd->solvable = 0;
+ break;
+ case STATE_ID:
+ if (pd->lcontent > 8 && !strcmp(".desktop", pd->content + pd->lcontent - 8))
+ pd->content[pd->lcontent - 8] = 0;
+ id = pool_str2id(pd->pool, pool_tmpjoin(pool, "appdata(", pd->content, ")"), 1);
+ s->requires = repo_addid_dep(pd->repo, s->requires, id, 0);
+ id = pool_str2id(pd->pool, pool_tmpjoin(pool, "application-appdata(", pd->content, ")"), 1);
+ s->provides = repo_addid_dep(pd->repo, s->provides, id, 0);
+ break;
+ case STATE_NAME:
+ s->name = pool_str2id(pd->pool, pool_tmpjoin(pool, "application:", pd->content, 0), 1);
+ break;
+ case STATE_LICENCE:
+ repodata_add_poolstr_array(pd->data, pd->handle, SOLVABLE_LICENSE, pd->content);
+ break;
+ case STATE_SUMMARY:
+ repodata_set_str(pd->data, pd->handle, SOLVABLE_SUMMARY, pd->content);
+ break;
+ case STATE_URL:
+ repodata_set_str(pd->data, pd->handle, SOLVABLE_URL, pd->content);
+ break;
+ case STATE_GROUP:
+ repodata_add_poolstr_array(pd->data, pd->handle, SOLVABLE_GROUP, pd->content);
+ break;
+ case STATE_DESCRIPTION:
+ if (pd->description)
+ {
+ /* strip trailing newlines */
+ int l = strlen(pd->description);
+ while (l && pd->description[l - 1] == '\n')
+ pd->description[--l] = 0;
+ repodata_set_str(pd->data, pd->handle, SOLVABLE_DESCRIPTION, pd->description);
+ }
+ break;
+ case STATE_P:
+ wsstrip(pd);
+ pd->description = solv_dupappend(pd->description, pd->content, "\n\n");
+ break;
+ case STATE_UL_LI:
+ wsstrip(pd);
+ indent(pd, 4);
+ pd->content[2] = '-';
+ pd->description = solv_dupappend(pd->description, pd->content, "\n");
+ break;
+ case STATE_OL_LI:
+ wsstrip(pd);
+ indent(pd, 4);
+ if (++pd->licnt >= 10)
+ pd->content[0] = '0' + (pd->licnt / 10) % 10;
+ pd->content[1] = '0' + pd->licnt % 10;
+ pd->content[2] = '.';
+ pd->description = solv_dupappend(pd->description, pd->content, "\n");
+ break;
+ case STATE_UL:
+ case STATE_OL:
+ pd->description = solv_dupappend(pd->description, "\n", 0);
+ break;
+ default:
+ break;
+ }
+
+ pd->state = pd->sbtab[pd->state];
+ pd->docontent = 0;
+
+#if 0
+ fprintf(stderr, "end: [%s] -> %d\n", name, pd->state);
+#endif
+}
+
+
+static void XMLCALL
+characterData(void *userData, const XML_Char *s, int len)
+{
+ struct parsedata *pd = userData;
+ int l;
+ char *c;
+ if (!pd->docontent)
+ return;
+ l = pd->lcontent + len + 1;
+ if (l > pd->acontent)
+ {
+ pd->acontent = l + 256;
+ pd->content = realloc(pd->content, pd->acontent);
+ }
+ c = pd->content + pd->lcontent;
+ pd->lcontent += len;
+ while (len-- > 0)
+ *c++ = *s++;
+ *c = 0;
+}
+
+#define BUFF_SIZE 8192
+
+int
+repo_add_appdata(Repo *repo, FILE *fp, int flags)
+{
+ Pool *pool = repo->pool;
+ struct parsedata pd;
+ struct stateswitch *sw;
+ Repodata *data;
+ char buf[BUFF_SIZE];
+ int i, l;
+ int ret = 0;
+
+ data = repo_add_repodata(repo, flags);
+ memset(&pd, 0, sizeof(pd));
+ pd.repo = repo;
+ pd.pool = repo->pool;
+ pd.data = data;
+
+ pd.content = malloc(256);
+ pd.acontent = 256;
+
+ for (i = 0, sw = stateswitches; sw->from != NUMSTATES; i++, sw++)
+ {
+ if (!pd.swtab[sw->from])
+ pd.swtab[sw->from] = sw;
+ pd.sbtab[sw->to] = sw->from;
+ }
+
+ XML_Parser parser = XML_ParserCreate(NULL);
+ XML_SetUserData(parser, &pd);
+ XML_SetElementHandler(parser, startElement, endElement);
+ XML_SetCharacterDataHandler(parser, characterData);
+
+ for (;;)
+ {
+ l = fread(buf, 1, sizeof(buf), fp);
+ if (XML_Parse(parser, buf, l, l == 0) == XML_STATUS_ERROR)
+ {
+ pool_error(pool, -1, "repo_appdata: %s at line %u:%u\n", XML_ErrorString(XML_GetErrorCode(parser)), (unsigned int)XML_GetCurrentLineNumber(parser), (unsigned int)XML_GetCurrentColumnNumber(parser));
+ ret = -1;
+ break;
+ }
+ if (l == 0)
+ break;
+ }
+ XML_ParserFree(parser);
+
+ if (!(flags & REPO_NO_INTERNALIZE))
+ repodata_internalize(data);
+
+ free(pd.content);
+ return ret;
+}
+
+/* add all files ending in .appdata.xml */
+int
+repo_add_appdata_dir(Repo *repo, const char *appdatadir, int flags)
+{
+ DIR *dir;
+ char *dirpath;
+ Repodata *data;
+
+ data = repo_add_repodata(repo, flags);
+ if (flags & REPO_USE_ROOTDIR)
+ dirpath = pool_prepend_rootdir(repo->pool, appdatadir);
+ else
+ dirpath = solv_strdup(appdatadir);
+ if ((dir = opendir(dirpath)) != 0)
+ {
+ struct dirent *entry;
+ while ((entry = readdir(dir)))
+ {
+ const char *n;
+ FILE *fp;
+ int len = strlen(entry->d_name);
+ if (len <= 12 || strcmp(entry->d_name + len - 12, ".appdata.xml") != 0)
+ continue;
+ if (entry->d_name[0] == '.')
+ continue;
+ n = pool_tmpjoin(repo->pool, dirpath, "/", entry->d_name);
+ fp = fopen(n, "r");
+ if (!fp)
+ {
+ pool_error(repo->pool, 0, "%s: %s", n, strerror(errno));
+ continue;
+ }
+ repo_add_appdata(repo, fp, flags | REPO_NO_INTERNALIZE | REPO_REUSE_REPODATA);
+ fclose(fp);
+ }
+ }
+ if (!(flags & REPO_NO_INTERNALIZE))
+ repodata_internalize(data);
+ return 0;
+}
projects / platform / upstream / libsolv.git / commitdiff